Re: [PATCH v11 0/6] Add Skyworks SKY81452 device drivers
On Fri, Feb 27, 2015 at 08:39:38PM +, Lee Jones wrote: > On Fri, 27 Feb 2015, gyun...@gmail.com wrote: > > > From: Gyungoh Yoo > > > > This patch set includes regulator and backlight driver for SKY81452. > > Also it includes documents for device tree and module. > > sky81452-regulator was already applied. So this series doesn't > > include it. > > > > v11: > > Renamed 'skyworks,en-channels' property to led-sources. > > Removed unused property 'skyworks,ovp-level'. > > > > v10: > > Removed trivial get_brightness implementations for sky81452-backlight > > > > v9: > > Removed the change to remove MODULE_VERSION() for sky81452-regulator > > > > v8: > > Renamed property names for backlight with vendor prefix > > Modified gpio-enable property to generic property for GPIO > > Made up the example for backlight DT > > Changed the DT parsing of regulator using regulator_node and of_match > > > > v7: > > Modified licensing text to GPLv2 > > Split Kconfig renaming from DT patch > > > > v6: > > Added new line character at the end of line of dev_err() > > > > v5: > > Changed DT for regulator : 'lout' node should be defined under 'regulator' > > Removed compatible string from sky81452-regulator driver > > Modified sky81452-regulator to return EINVAL when of_node is NULL > > Move sky81452-backlight.h to include/linux/platform_data > > > > v4: > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > Removed calling to backlight_device_unregister() in sky81452-backlight > > > > v3: > > Cleaned-up DBG messages > > Cleaned-up DT > > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > > Assigned mfd_cell.of_compatible for binding device node > > Modified error messages > > Modified sky81452-regulator to return ENODATA when of_node is NULL > > > > v2: > > Split the patches for each sub-system > > Added 'reg' attribute for I2C address in device tree documents > > Added 'compatible' attribute in child drivers > > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > > Added message for exception or errors. > > Added vendor prefix for Skyworks Solutions, Inc. > > Add SKY81452 to the Trivial Devices list > > > > Gyungoh Yoo (6): > > mfd: Add support for Skyworks SKY81452 driver > > backlight: Add support Skyworks SKY81452 backlight driver > > devicetree: Add new SKY81452 mfd binding > > devicetree: Add new SKY81452 backlight binding > > devicetree: Add vendor prefix for Skyworks Solutions, Inc. > > devicetree: Add SKY81452 to the Trivial Devices list > > > > .../devicetree/bindings/i2c/trivial-devices.txt| 1 + > > Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ > > .../devicetree/bindings/vendor-prefixes.txt| 1 + > > .../video/backlight/sky81452-backlight.txt | 29 ++ > > drivers/mfd/Kconfig| 12 + > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 108 +++ > > drivers/video/backlight/Kconfig| 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 353 > > + > > include/linux/mfd/sky81452.h | 31 ++ > > include/linux/platform_data/sky81452-backlight.h | 46 +++ > > 12 files changed, 628 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 > > Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > create mode 100644 include/linux/mfd/sky81452.h > > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > Correct me if I'm wrong, but I believe you have all of the relevant > Acks now. If so, I plan to pick this up next week and take it > through the MFD tree. I had got all Acks except DT on v10. Rob from DT reviewed, and v11 includes what he asked. > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v11 0/6] Add Skyworks SKY81452 device drivers
On Fri, Feb 27, 2015 at 08:39:38PM +, Lee Jones wrote: On Fri, 27 Feb 2015, gyun...@gmail.com wrote: From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v11: Renamed 'skyworks,en-channels' property to led-sources. Removed unused property 'skyworks,ovp-level'. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Split Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: Add new SKY81452 mfd binding devicetree: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 353 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 628 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h Correct me if I'm wrong, but I believe you have all of the relevant Acks now. If so, I plan to pick this up next week and take it through the MFD tree. I had got all Acks except DT on v10. Rob from DT reviewed, and v11 includes what he asked. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Fri, Feb 27, 2015 at 09:58:38AM +0100, Oliver Neukum wrote:
> On Fri, 2015-02-27 at 15:42 +0900, gyun...@gmail.com wrote:
> > +static ssize_t sky81452_bl_store_enable(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t
> > count)
> > +{
> > + struct regmap *regmap = bl_get_data(to_backlight_device(dev));
> > + unsigned long value;
> > + int ret;
> > +
> > + ret = kstrtoul(buf, 16, );
> > + if (IS_ERR_VALUE(ret))
> > + return ret;
>
> No range checking?
It doesn't need it. below regmap_update_bits() is masking the value.
>
> > +
> > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
> > + value << CTZ(SKY81452_EN));
> > + if (IS_ERR_VALUE(ret))
> > + return ret;
> > +
> > + return count;
> > +}
>
> Regards
> Oliver
>
>
>
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Re: [PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Fri, Feb 27, 2015 at 09:58:38AM +0100, Oliver Neukum wrote:
On Fri, 2015-02-27 at 15:42 +0900, gyun...@gmail.com wrote:
+static ssize_t sky81452_bl_store_enable(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t
count)
+{
+ struct regmap *regmap = bl_get_data(to_backlight_device(dev));
+ unsigned long value;
+ int ret;
+
+ ret = kstrtoul(buf, 16, value);
+ if (IS_ERR_VALUE(ret))
+ return ret;
No range checking?
It doesn't need it. below regmap_update_bits() is masking the value.
+
+ ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
+ value CTZ(SKY81452_EN));
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+ return count;
+}
Regards
Oliver
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[PATCH v11 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8bf2940
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- led-sources : List of enabled channels from 0 to 5.
+ See Documentation/devicetree/bindings/leds/common.txt
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,short-detection-threshold-volt
+ : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit-mA
+ : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ led-sources = <0 1 2 5>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit-mA = <2300>;
+ };
--
1.9.1
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[PATCH v11 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo Acked-by: Lee Jones --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 389ca13..c4fe9cc 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -165,6 +165,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Jingoo Han
Acked-by: Bryan Wu
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 353 +++
include/linux/platform_data/sky81452-backlight.h | 46 +++
4 files changed, 410 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index efb0904..2d9923a 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -408,6 +408,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..052fa1b
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,353 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+
[PATCH v11 6/6] devicetree: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index aaa8325..003bd77 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -89,6 +89,7 @@ ricoh,rv5c386 I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC ricoh,rv5c387a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..3518179
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,35 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ led-sources = <0 1 2 3 6>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
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[PATCH v11 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v11:
Nothing
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 38356e3..bc3b540 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -753,6 +753,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 19f3d74..75b3ffb 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -178,6 +178,7 @@ obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
obj-$(CONFIG_MFD_DLN2) += dln2.o
obj-$(CONFIG_MFD_RT5033) += rt5033.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
[PATCH v11 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v11: Renamed 'skyworks,en-channels' property to led-sources. Removed unused property 'skyworks,ovp-level'. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Split Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: Add new SKY81452 mfd binding devicetree: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 353 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 628 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v11:
Nothing
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 38356e3..bc3b540 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -753,6 +753,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 19f3d74..75b3ffb 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -178,6 +178,7 @@ obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
obj-$(CONFIG_MFD_DLN2) += dln2.o
obj-$(CONFIG_MFD_RT5033) += rt5033.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed to add child
[PATCH v11 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v11: Renamed 'skyworks,en-channels' property to led-sources. Removed unused property 'skyworks,ovp-level'. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Split Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: Add new SKY81452 mfd binding devicetree: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 353 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 628 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..3518179
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,35 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ led-sources = 0 1 2 3 6;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Jingoo Han jg1@samsung.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 353 +++
include/linux/platform_data/sky81452-backlight.h | 46 +++
4 files changed, 410 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index efb0904..2d9923a 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -408,6 +408,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate Backlight driver for SKY81452
+ depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate TPS65217 Backlight
depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..052fa1b
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,353 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/backlight.h
+#include linux/err.h
+#include linux/gpio.h
+#include linux/init.h
+#include linux/kernel.h
+#include linux/module.h
+#include linux/of.h
+#include linux/of_gpio.h
+#include linux/platform_device.h
+#include linux/regmap.h
+#include linux/platform_data/sky81452-backlight.h
+#include linux/slab.h
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME lcd-backlight
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd-dev.parent);
+ const unsigned int
[PATCH v11 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8bf2940
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- led-sources : List of enabled channels from 0 to 5.
+ See Documentation/devicetree/bindings/leds/common.txt
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,short-detection-threshold-volt
+ : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit-mA
+ : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ led-sources = 0 1 2 5;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit-mA = 2300;
+ };
--
1.9.1
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[PATCH v11 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com Acked-by: Lee Jones lee.jo...@linaro.org --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 389ca13..c4fe9cc 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -165,6 +165,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 6/6] devicetree: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index aaa8325..003bd77 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -89,6 +89,7 @@ ricoh,rv5c386 I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC ricoh,rv5c387a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 0/6] Add Skyworks SKY81452 device drivers
On Thu, Feb 05, 2015 at 03:29:40PM +0900, gyun...@gmail.com wrote: Please ignore this patch serial v10. Sorry for my mistake > From: Gyungoh Yoo > > This patch set includes regulator and backlight driver for SKY81452. > Also it includes documents for device tree and module. > sky81452-regulator was already applied. So this series doesn't > include it. > > v10: > Removed trivial get_brightness implementations for sky81452-backlight > > v9: > Removed the change to remove MODULE_VERSION() for sky81452-regulator > > v8: > Renamed property names for backlight with vendor prefix > Modified gpio-enable property to generic property for GPIO > Made up the example for backlight DT > Changed the DT parsing of regulator using regulator_node and of_match > > v7: > Modified licensing text to GPLv2 > Splitted Kconfig renaming from DT patch > > v6: > Added new line character at the end of line of dev_err() > > v5: > Changed DT for regulator : 'lout' node should be defined under 'regulator' > Removed compatible string from sky81452-regulator driver > Modified sky81452-regulator to return EINVAL when of_node is NULL > Move sky81452-backlight.h to include/linux/platform_data > > v4: > Removed MODULE_VERSION() > Modified license to GPLv2 > Removed calling to backlight_device_unregister() in sky81452-backlight > > v3: > Cleaned-up DBG messages > Cleaned-up DT > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > Assigned mfd_cell.of_compatible for binding device node > Modified error messages > Modified sky81452-regulator to return ENODATA when of_node is NULL > > v2: > Split the patches for each sub-system > Added 'reg' attribute for I2C address in device tree documents > Added 'compatible' attribute in child drivers > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > Added message for exception or errors. > Added vendor prefix for Skyworks Solutions, Inc. > Add SKY81452 to the Trivial Devices list > > Gyungoh Yoo (6): > mfd: Add support for Skyworks SKY81452 driver > backlight: Add support Skyworks SKY81452 backlight driver > devicetree: mfd: Add new SKY81452 mfd binding > devicetree: backlight: Add new SKY81452 backlight binding > devicetree: Add vendor prefix for Skyworks Solutions, Inc. > devicetree: i2c: Add SKY81452 to the Trivial Devices list > > .../devicetree/bindings/i2c/trivial-devices.txt| 1 + > Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ > .../devicetree/bindings/vendor-prefixes.txt| 1 + > .../video/backlight/sky81452-backlight.txt | 29 ++ > drivers/mfd/Kconfig| 12 + > drivers/mfd/Makefile | 1 + > drivers/mfd/sky81452.c | 108 +++ > drivers/video/backlight/Kconfig| 10 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/sky81452-backlight.c | 334 > + > include/linux/mfd/sky81452.h | 31 ++ > include/linux/platform_data/sky81452-backlight.h | 46 +++ > 12 files changed, 610 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > create mode 100644 > Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt > create mode 100644 drivers/mfd/sky81452.c > create mode 100644 drivers/video/backlight/sky81452-backlight.c > create mode 100644 include/linux/mfd/sky81452.h > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..3518179
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,35 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ led-sources = <0 1 2 3 6>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
--
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[PATCH v11 6/6] devicetree: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 9f41d05..b026167 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -88,6 +88,7 @@ ricoh,rv5c386 I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC ricoh,rv5c387a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo Acked-by: Lee Jones --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d443279..02f182d9 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -149,6 +149,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8bf2940
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- led-sources : List of enabled channels from 0 to 5.
+ See Documentation/devicetree/bindings/leds/common.txt
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,short-detection-threshold-volt
+ : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit-mA
+ : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ led-sources = <0 1 2 5>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit-mA = <2300>;
+ };
--
1.9.1
--
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[PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Jingoo Han
Acked-by: Bryan Wu
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 353 +++
include/linux/platform_data/sky81452-backlight.h | 46 +++
4 files changed, 410 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index efb0904..2d9923a 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -408,6 +408,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..052fa1b
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,353 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+
[PATCH v11 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v11:
Nothing
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2e6b731..368f650 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -714,6 +714,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 53467e2..afae3ca 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -176,6 +176,7 @@ obj-$(CONFIG_MFD_IPAQ_MICRO)+= ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
obj-$(CONFIG_MFD_DLN2) += dln2.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_clien
[PATCH v11 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v11: Renamed 'skyworks,en-channels' property to led-sources. Removed unused property 'skyworks,ovp-level'. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: Add new SKY81452 mfd binding devicetree: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 352 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 627 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+ mfd_r
Re: [PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
On Wed, Feb 04, 2015 at 09:11:22AM -0600, Rob Herring wrote:
> On Fri, Jan 23, 2015 at 12:28 AM, wrote:
> > From: Gyungoh Yoo
> >
> > Signed-off-by: Gyungoh Yoo
> > Acked-by: Bryan Wu
> > ---
> > Changes v10:
> > Nothing
> >
> > Changes v9:
> > Nothing
> >
> > Changes v8:
> > Renamed property names for backlight with vendor prefix
> > Modified gpio-enable property to generic property for GPIO
> > Made up the example for backlight DT
> >
> > Changes v7:
> > Nothing
> >
> > Changes v6:
> > Nothing
> >
> > Changes v5:
> > Nothing
> >
> > Changes v4:
> > Nothing
> >
> > Changes v3:
> > Nothing
> >
> > Changes v2:
> > Added reg attribute for I2C slave address
>
> You did? Where is it?
It was just changes on version 2.
Since that version, the patch series was separted.
>
> > .../video/backlight/sky81452-backlight.txt | 29
> > ++
> > 1 file changed, 29 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> >
> > diff --git
> > a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> > b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> > new file mode 100644
> > index 000..8daebf5
> > --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> > @@ -0,0 +1,29 @@
> > +SKY81452-backlight bindings
> > +
> > +Required properties:
> > +- compatible : Must be "skyworks,sky81452-backlight"
> > +
> > +Optional properties:
> > +- name : Name of backlight device. Default is
> > 'lcd-backlight'.
> > +- gpios: GPIO to use to EN pin.
> > + See Documentation/devicetree/bindings/gpio/gpio.txt
> > +- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
>
> Does led-sources property being added in 3.20 work for this?
I think so. I will modify it.
>
> > +- skyworks,ignore-pwm : Ignore both PWM input
> > +- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog
> > dimming.
> > +- skyworks,phase-shift : Enable phase shift mode
> > +- skyworks,ovp-level : Over-voltage protection level.
> > + Should be between 14 or 28V.
>
> Please append units (-volt)
I will append it and resubmit the patch.
Thanks.
>
> > +- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and
> > 7V.
>
> Please append units (-volt)
>
> > +- skyworks,current-limit : It should be 2300mA or 2750mA.
>
> Please append units (-mA)
>
> > +
> > +Example:
> > +
> > + backlight {
> > + compatible = "skyworks,sky81452-backlight";
> > + name = "pwm-backlight";
> > + skyworks,en-channels = <0x3f>;
> > + skyworks,ignore-pwm;
> > + skyworks,phase-shift;
> > + skyworks,ovp-level = <20>;
> > + skyworks,current-limit = <2300>;
> > + };
> > --
> > 1.9.1
> >
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
On Wed, Feb 04, 2015 at 09:11:22AM -0600, Rob Herring wrote:
On Fri, Jan 23, 2015 at 12:28 AM, gyun...@gmail.com wrote:
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
You did? Where is it?
It was just changes on version 2.
Since that version, the patch series was separted.
.../video/backlight/sky81452-backlight.txt | 29
++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is
'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
Does led-sources property being added in 3.20 work for this?
I think so. I will modify it.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog
dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
Please append units (-volt)
I will append it and resubmit the patch.
Thanks.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and
7V.
Please append units (-volt)
+- skyworks,current-limit : It should be 2300mA or 2750mA.
Please append units (-mA)
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed to add child devices
[PATCH v11 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8bf2940
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- led-sources : List of enabled channels from 0 to 5.
+ See Documentation/devicetree/bindings/leds/common.txt
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,short-detection-threshold-volt
+ : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit-mA
+ : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ led-sources = 0 1 2 5;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit-mA = 2300;
+ };
--
1.9.1
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[PATCH v11 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Jingoo Han jg1@samsung.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 353 +++
include/linux/platform_data/sky81452-backlight.h | 46 +++
4 files changed, 410 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index efb0904..2d9923a 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -408,6 +408,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate Backlight driver for SKY81452
+ depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate TPS65217 Backlight
depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..052fa1b
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,353 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/backlight.h
+#include linux/err.h
+#include linux/gpio.h
+#include linux/init.h
+#include linux/kernel.h
+#include linux/module.h
+#include linux/of.h
+#include linux/of_gpio.h
+#include linux/platform_device.h
+#include linux/regmap.h
+#include linux/platform_data/sky81452-backlight.h
+#include linux/slab.h
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME lcd-backlight
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd-dev.parent);
+ const unsigned int
[PATCH v11 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v11: Renamed 'skyworks,en-channels' property to led-sources. Removed unused property 'skyworks,ovp-level'. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: Add new SKY81452 mfd binding devicetree: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 352 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 627 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v11:
Nothing
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2e6b731..368f650 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -714,6 +714,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 53467e2..afae3ca 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -176,6 +176,7 @@ obj-$(CONFIG_MFD_IPAQ_MICRO)+= ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
obj-$(CONFIG_MFD_DLN2) += dln2.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed
[PATCH v11 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v11:
Renamed 'skyworks,en-channels' property to led-sources.
Removed unused property 'skyworks,ovp-level'.
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 35 ++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..3518179
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,35 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ led-sources = 0 1 2 3 6;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
--
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 6/6] devicetree: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 9f41d05..b026167 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -88,6 +88,7 @@ ricoh,rv5c386 I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC ricoh,rv5c387a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v11 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com Acked-by: Lee Jones lee.jo...@linaro.org --- Changes v11: Nothing Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d443279..02f182d9 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -149,6 +149,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 0/6] Add Skyworks SKY81452 device drivers
On Thu, Feb 05, 2015 at 03:29:40PM +0900, gyun...@gmail.com wrote: Please ignore this patch serial v10. Sorry for my mistake From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
On Fri, Jan 23, 2015 at 03:28:33PM +0900, gyun...@gmail.com wrote:
> From: Gyungoh Yoo
>
> Signed-off-by: Gyungoh Yoo
> Acked-by: Bryan Wu
The existing Ack is only for backlight driver.
DT Ack please.
> ---
> Changes v10:
> Nothing
>
> Changes v9:
> Nothing
>
> Changes v8:
> Renamed property names for backlight with vendor prefix
> Modified gpio-enable property to generic property for GPIO
> Made up the example for backlight DT
>
> Changes v7:
> Nothing
>
> Changes v6:
> Nothing
>
> Changes v5:
> Nothing
>
> Changes v4:
> Nothing
>
> Changes v3:
> Nothing
>
> Changes v2:
> Added reg attribute for I2C slave address
>
> .../video/backlight/sky81452-backlight.txt | 29
> ++
> 1 file changed, 29 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
>
> diff --git
> a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> new file mode 100644
> index 000..8daebf5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> @@ -0,0 +1,29 @@
> +SKY81452-backlight bindings
> +
> +Required properties:
> +- compatible : Must be "skyworks,sky81452-backlight"
> +
> +Optional properties:
> +- name : Name of backlight device. Default is
> 'lcd-backlight'.
> +- gpios : GPIO to use to EN pin.
> + See Documentation/devicetree/bindings/gpio/gpio.txt
> +- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
> +- skyworks,ignore-pwm: Ignore both PWM input
> +- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
> +- skyworks,phase-shift : Enable phase shift mode
> +- skyworks,ovp-level : Over-voltage protection level.
> + Should be between 14 or 28V.
> +- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
> +- skyworks,current-limit : It should be 2300mA or 2750mA.
> +
> +Example:
> +
> + backlight {
> + compatible = "skyworks,sky81452-backlight";
> + name = "pwm-backlight";
> + skyworks,en-channels = <0x3f>;
> + skyworks,ignore-pwm;
> + skyworks,phase-shift;
> + skyworks,ovp-level = <20>;
> + skyworks,current-limit = <2300>;
> + };
> --
> 1.9.1
>
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Re: [PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
On Fri, Jan 23, 2015 at 03:28:33PM +0900, gyun...@gmail.com wrote:
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
The existing Ack is only for backlight driver.
DT Ack please.
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29
++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is
'lcd-backlight'.
+- gpios : GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm: Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
--
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[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Jingoo Han
Acked-by: Bryan Wu
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+
[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo Acked-by: Lee Jones --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
--
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[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+ mfd_r
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
--
1.9.1
--
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[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Jingoo Han jg1@samsung.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate Backlight driver for SKY81452
+ depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate TPS65217 Backlight
depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/backlight.h
+#include linux/err.h
+#include linux/gpio.h
+#include linux/init.h
+#include linux/kernel.h
+#include linux/module.h
+#include linux/of.h
+#include linux/of_gpio.h
+#include linux/platform_device.h
+#include linux/regmap.h
+#include linux/platform_data/sky81452-backlight.h
+#include linux/slab.h
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME lcd-backlight
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd-dev.parent);
+ const unsigned int brightness = (unsigned int)bd-props.brightness;
+ struct regmap *regmap
[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com Acked-by: Lee Jones lee.jo...@linaro.org --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 3/6] devicetree: Add new SKY81452 mfd binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
--
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the body of a message to majord...@vger.kernel.org
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed to add child devices
[PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
--
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[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 0/6] Add Skyworks SKY81452 device drivers
On Sun, Jan 18, 2015 at 05:40:37PM +, Lee Jones wrote: > > From: Gyungoh Yoo > > > > This patch set includes regulator and backlight driver for SKY81452. > > Also it includes documents for device tree and module. > > sky81452-regulator was already applied. So this series doesn't > > include it. > > Tell us what you need? What's missing? I need DT's Ack for 3/6 and 4/6. Thanks. > > > v10: > > Removed trivial get_brightness implementations for sky81452-backlight > > > > v9: > > Removed the change to remove MODULE_VERSION() for sky81452-regulator > > > > v8: > > Renamed property names for backlight with vendor prefix > > Modified gpio-enable property to generic property for GPIO > > Made up the example for backlight DT > > Changed the DT parsing of regulator using regulator_node and of_match > > > > v7: > > Modified licensing text to GPLv2 > > Splitted Kconfig renaming from DT patch > > > > v6: > > Added new line character at the end of line of dev_err() > > > > v5: > > Changed DT for regulator : 'lout' node should be defined under 'regulator' > > Removed compatible string from sky81452-regulator driver > > Modified sky81452-regulator to return EINVAL when of_node is NULL > > Move sky81452-backlight.h to include/linux/platform_data > > > > v4: > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > Removed calling to backlight_device_unregister() in sky81452-backlight > > > > v3: > > Cleaned-up DBG messages > > Cleaned-up DT > > Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' > > Assigned mfd_cell.of_compatible for binding device node > > Modified error messages > > Modified sky81452-regulator to return ENODATA when of_node is NULL > > > > v2: > > Split the patches for each sub-system > > Added 'reg' attribute for I2C address in device tree documents > > Added 'compatible' attribute in child drivers > > Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 > > Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 > > Added message for exception or errors. > > Added vendor prefix for Skyworks Solutions, Inc. > > Add SKY81452 to the Trivial Devices list > > > > Gyungoh Yoo (6): > > mfd: Add support for Skyworks SKY81452 driver > > backlight: Add support Skyworks SKY81452 backlight driver > > devicetree: mfd: Add new SKY81452 mfd binding > > devicetree: backlight: Add new SKY81452 backlight binding > > devicetree: Add vendor prefix for Skyworks Solutions, Inc. > > devicetree: i2c: Add SKY81452 to the Trivial Devices list > > > > .../devicetree/bindings/i2c/trivial-devices.txt| 1 + > > Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ > > .../devicetree/bindings/vendor-prefixes.txt| 1 + > > .../video/backlight/sky81452-backlight.txt | 29 ++ > > drivers/mfd/Kconfig| 12 + > > drivers/mfd/Makefile | 1 + > > drivers/mfd/sky81452.c | 108 +++ > > drivers/video/backlight/Kconfig| 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 334 > > + > > include/linux/mfd/sky81452.h | 31 ++ > > include/linux/platform_data/sky81452-backlight.h | 46 +++ > > 12 files changed, 610 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt > > create mode 100644 > > Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt > > create mode 100644 drivers/mfd/sky81452.c > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > create mode 100644 include/linux/mfd/sky81452.h > > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 0/6] Add Skyworks SKY81452 device drivers
On Sun, Jan 18, 2015 at 05:40:37PM +, Lee Jones wrote: From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. Tell us what you need? What's missing? I need DT's Ack for 3/6 and 4/6. Thanks. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
DT Ack please.
On Wed, Jan 07, 2015 at 11:19:25AM +0900, gyun...@gmail.com wrote:
> From: Gyungoh Yoo
>
> Signed-off-by: Gyungoh Yoo
> Acked-by: Bryan Wu
> ---
> Changes v10:
> Nothing
>
> Changes v9:
> Nothing
>
> Changes v8:
> Renamed property names for backlight with vendor prefix
> Modified gpio-enable property to generic property for GPIO
> Made up the example for backlight DT
>
> Changes v7:
> Nothing
>
> Changes v6:
> Nothing
>
> Changes v5:
> Nothing
>
> Changes v4:
> Nothing
>
> Changes v3:
> Nothing
>
> Changes v2:
> Added reg attribute for I2C slave address
>
> .../video/backlight/sky81452-backlight.txt | 29
> ++
> 1 file changed, 29 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
>
> diff --git
> a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> new file mode 100644
> index 000..8daebf5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
> @@ -0,0 +1,29 @@
> +SKY81452-backlight bindings
> +
> +Required properties:
> +- compatible : Must be "skyworks,sky81452-backlight"
> +
> +Optional properties:
> +- name : Name of backlight device. Default is
> 'lcd-backlight'.
> +- gpios : GPIO to use to EN pin.
> + See Documentation/devicetree/bindings/gpio/gpio.txt
> +- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
> +- skyworks,ignore-pwm: Ignore both PWM input
> +- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
> +- skyworks,phase-shift : Enable phase shift mode
> +- skyworks,ovp-level : Over-voltage protection level.
> + Should be between 14 or 28V.
> +- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
> +- skyworks,current-limit : It should be 2300mA or 2750mA.
> +
> +Example:
> +
> + backlight {
> + compatible = "skyworks,sky81452-backlight";
> + name = "pwm-backlight";
> + skyworks,en-channels = <0x3f>;
> + skyworks,ignore-pwm;
> + skyworks,phase-shift;
> + skyworks,ovp-level = <20>;
> + skyworks,current-limit = <2300>;
> + };
> --
> 1.9.1
>
--
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More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
DT Ack please.
On Wed, Jan 07, 2015 at 11:19:24AM +0900, gyun...@gmail.com wrote:
> From: Gyungoh Yoo
>
> Signed-off-by: Gyungoh Yoo
> Acked-by: Lee Jones
> ---
> Changes v10:
> Nothing
>
> Changes v9:
> Nothing
>
> Changes v8:
> Made up the example for backlight DT
>
> Changes v7:
> Nothing
>
> Changes v6:
> Nothing
>
> Changes v5:
> Changed DT for regulator : 'lout' node should be defined under 'regulator'
> Removed compatible string from sky81452-regulator driver
>
> Changes v4:
> Nothing
>
> Changes v3:
> Nothing
>
> Changes v2:
> Added reg attribute for I2C slave address
>
> Documentation/devicetree/bindings/mfd/sky81452.txt | 36
> ++
> 1 file changed, 36 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
> b/Documentation/devicetree/bindings/mfd/sky81452.txt
> new file mode 100644
> index 000..ab71473
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
> @@ -0,0 +1,36 @@
> +SKY81452 bindings
> +
> +Required properties:
> +- compatible : Must be "skyworks,sky81452"
> +- reg: I2C slave address
> +
> +Required child nodes:
> +- backlight : container node for backlight following the binding
> + in video/backlight/sky81452-backlight.txt
> +- regulator : container node for regulators following the binding
> + in regulator/sky81452-regulator.txt
> +
> +Example:
> +
> + sky81452@2c {
> + compatible = "skyworks,sky81452";
> + reg = <0x2c>;
> +
> + backlight {
> + compatible = "skyworks,sky81452-backlight";
> + name = "pwm-backlight";
> + skyworks,en-channels = <0x3f>;
> + skyworks,ignore-pwm;
> + skyworks,phase-shift;
> + skyworks,ovp-level = <20>;
> + skyworks,current-limit = <2300>;
> + };
> +
> + regulator {
> + lout {
> + regulator-name = "sky81452-lout";
> + regulator-min-microvolt = <450>;
> + regulator-max-microvolt = <800>;
> + };
> + };
> + };
> --
> 1.9.1
>
--
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More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
DT Ack please.
On Wed, Jan 07, 2015 at 11:19:25AM +0900, gyun...@gmail.com wrote:
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29
++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is
'lcd-backlight'.
+- gpios : GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm: Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
DT Ack please.
On Wed, Jan 07, 2015 at 11:19:24AM +0900, gyun...@gmail.com wrote:
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36
++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg: I2C slave address
+
+Required child nodes:
+- backlight : container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator : container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
--
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Jingoo Han
Acked-by: Bryan Wu
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+
[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo Acked-by: Lee Jones --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
--
1.9.1
--
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More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
--
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+ mfd_r
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Jingoo Han jg1@samsung.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate Backlight driver for SKY81452
+ depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate TPS65217 Backlight
depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/backlight.h
+#include linux/err.h
+#include linux/gpio.h
+#include linux/init.h
+#include linux/kernel.h
+#include linux/module.h
+#include linux/of.h
+#include linux/of_gpio.h
+#include linux/platform_device.h
+#include linux/regmap.h
+#include linux/platform_data/sky81452-backlight.h
+#include linux/slab.h
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME lcd-backlight
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd-dev.parent);
+ const unsigned int brightness = (unsigned int)bd-props.brightness;
+ struct regmap *regmap
[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com Acked-by: Lee Jones lee.jo...@linaro.org --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed to add child devices
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
--
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[PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
--
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Re: [PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Thu, Dec 18, 2014 at 03:09:21PM +0900, Jingoo Han wrote: > On Thursday, December 18, 2014 2:48 PM, Gyungoh Yoo wrote: > > > > From: Gyungoh Yoo > > > > Signed-off-by: Gyungoh Yoo > > Please add the following 'Acked-by's when you send this patch > next time. > > Acked-by: Jingoo Han > Acked-by: Bryan Wu I see. Thank you. > > Best regards, > Jingoo Han > > > --- > > Changes v10: > > Removed trivial get_brightness implementations > > > > Changes v9: > > Nothing > > > > Changes v8: > > Renamed property names for backlight with vendor prefix > > Modified gpio-enable property to generic property for GPIO > > > > Changes v7: > > Modified licensing text to GPLv2 > > > > Changes v6: > > Added new line character at the end of line of dev_err() > > > > Changes v5: > > Move sky81452-backlight.h to include/linux/platform_data > > > > Changes v4: > > Reordering header files for readability > > Removed calling to backlight_device_unregister() > > Removed MODULE_VERSION() > > Modified license to GPLv2 > > > > Changes v3: > > Modified DBG messages > > > > Changes v2: > > Added 'compatible' attribute in the driver > > Added message for exception or errors > > > > drivers/video/backlight/Kconfig | 10 + > > drivers/video/backlight/Makefile | 1 + > > drivers/video/backlight/sky81452-backlight.c | 334 > > +++ > > include/linux/platform_data/sky81452-backlight.h | 46 > > 4 files changed, 391 insertions(+) > > create mode 100644 drivers/video/backlight/sky81452-backlight.c > > create mode 100644 include/linux/platform_data/sky81452-backlight.h > > > > diff --git a/drivers/video/backlight/Kconfig > > b/drivers/video/backlight/Kconfig > > index 8d03924..2586fdd 100644 > > --- a/drivers/video/backlight/Kconfig > > +++ b/drivers/video/backlight/Kconfig > > @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA > > If you have a Pandora console, say Y to enable the > > backlight driver. > > > > +config BACKLIGHT_SKY81452 > > + tristate "Backlight driver for SKY81452" > > + depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452 > > + help > > + If you have a Skyworks SKY81452, say Y to enable the > > + backlight driver. > > + > > + To compile this driver as a module, choose M here: the module will > > + be called sky81452-backlight > > + > > config BACKLIGHT_TPS65217 > > tristate "TPS65217 Backlight" > > depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 > > diff --git a/drivers/video/backlight/Makefile > > b/drivers/video/backlight/Makefile > > index fcd50b73..d67073f 100644 > > --- a/drivers/video/backlight/Makefile > > +++ b/drivers/video/backlight/Makefile > > @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o > > obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o > > obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o > > obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o > > +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o > > obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o > > obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o > > obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o > > diff --git a/drivers/video/backlight/sky81452-backlight.c > > b/drivers/video/backlight/sky81452- > > backlight.c > > new file mode 100644 > > index 000..8105597 > > --- /dev/null > > +++ b/drivers/video/backlight/sky81452-backlight.c > > @@ -0,0 +1,334 @@ > > +/* > > + * sky81452-backlight.cSKY81452 backlight driver > > + * > > + * Copyright 2014 Skyworks Solutions Inc. > > + * Author : Gyungoh Yoo > > + * > > + * This program is free software; you can redistribute it and/or modify it > > + * under the terms of the GNU General Public License version 2 > > + * as published by the Free Software Foundation. > > + * > > + * This program is distributed in the hope that it will be useful, but > > + * WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > > + * General Public License for more details. > > + * > > + * You should have received a copy of the GNU General Public License along > > + * with this program; if not, see <http://www.gnu.org/licenses/>. > &
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+ mfd_r
[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
--
1.9.1
--
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[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
--
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the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+
[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 0/6] Add Skyworks SKY81452 device drivers
From: Gyungoh Yoo jack@skyworksinc.com This patch set includes regulator and backlight driver for SKY81452. Also it includes documents for device tree and module. sky81452-regulator was already applied. So this series doesn't include it. v10: Removed trivial get_brightness implementations for sky81452-backlight v9: Removed the change to remove MODULE_VERSION() for sky81452-regulator v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changed the DT parsing of regulator using regulator_node and of_match v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch v6: Added new line character at the end of line of dev_err() v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string from sky81452-regulator driver Modified sky81452-regulator to return EINVAL when of_node is NULL Move sky81452-backlight.h to include/linux/platform_data v4: Removed MODULE_VERSION() Modified license to GPLv2 Removed calling to backlight_device_unregister() in sky81452-backlight v3: Cleaned-up DBG messages Cleaned-up DT Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight' Assigned mfd_cell.of_compatible for binding device node Modified error messages Modified sky81452-regulator to return ENODATA when of_node is NULL v2: Split the patches for each sub-system Added 'reg' attribute for I2C address in device tree documents Added 'compatible' attribute in child drivers Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452 Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452 Added message for exception or errors. Added vendor prefix for Skyworks Solutions, Inc. Add SKY81452 to the Trivial Devices list Gyungoh Yoo (6): mfd: Add support for Skyworks SKY81452 driver backlight: Add support Skyworks SKY81452 backlight driver devicetree: mfd: Add new SKY81452 mfd binding devicetree: backlight: Add new SKY81452 backlight binding devicetree: Add vendor prefix for Skyworks Solutions, Inc. devicetree: i2c: Add SKY81452 to the Trivial Devices list .../devicetree/bindings/i2c/trivial-devices.txt| 1 + Documentation/devicetree/bindings/mfd/sky81452.txt | 36 +++ .../devicetree/bindings/vendor-prefixes.txt| 1 + .../video/backlight/sky81452-backlight.txt | 29 ++ drivers/mfd/Kconfig| 12 + drivers/mfd/Makefile | 1 + drivers/mfd/sky81452.c | 108 +++ drivers/video/backlight/Kconfig| 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 + include/linux/mfd/sky81452.h | 31 ++ include/linux/platform_data/sky81452-backlight.h | 46 +++ 12 files changed, 610 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt create mode 100644 drivers/mfd/sky81452.c create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/mfd/sky81452.h create mode 100644 include/linux/platform_data/sky81452-backlight.h -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = skyworks,sky81452;
+ reg = 0x2c;
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
+
+ regulator {
+ lout {
+ regulator-name = sky81452-lout;
+ regulator-min-microvolt = 450;
+ regulator-max-microvolt = 800;
+ };
+ };
+ };
--
1.9.1
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[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate Backlight driver for SKY81452
+ depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate TPS65217 Backlight
depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/backlight.h
+#include linux/err.h
+#include linux/gpio.h
+#include linux/init.h
+#include linux/kernel.h
+#include linux/module.h
+#include linux/of.h
+#include linux/of_gpio.h
+#include linux/platform_device.h
+#include linux/regmap.h
+#include linux/platform_data/sky81452-backlight.h
+#include linux/slab.h
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME lcd-backlight
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd-dev.parent);
+ const unsigned int brightness = (unsigned int)bd-props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness 0
[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Bryan Wu coolo...@gmail.com
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be skyworks,sky81452-backlight
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = skyworks,sky81452-backlight;
+ name = pwm-backlight;
+ skyworks,en-channels = 0x3f;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = 20;
+ skyworks,current-limit = 2300;
+ };
--
1.9.1
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[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo jack@skyworksinc.com
Signed-off-by: Gyungoh Yoo jack@skyworksinc.com
Acked-by: Lee Jones lee.jo...@linaro.org
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate Skyworks Solutions SKY81452
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool SMSC ECE1099 series chips
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo jack@skyworksinc.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see http://www.gnu.org/licenses/.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/init.h
+#include linux/err.h
+#include linux/slab.h
+#include linux/i2c.h
+#include linux/regmap.h
+#include linux/mfd/core.h
+#include linux/mfd/sky81452.h
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = client-dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, sky81452_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, failed to initialize.err=%ld\n, PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = sky81452-backlight;
+ cells[0].of_compatible = skyworks,sky81452-backlight;
+ cells[0].platform_data = pdata-bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata-bl_pdata);
+ cells[1].name = sky81452-regulator;
+ cells[1].platform_data = pdata-regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata-regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, failed to add child devices
Re: [PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Thu, Dec 18, 2014 at 03:09:21PM +0900, Jingoo Han wrote: On Thursday, December 18, 2014 2:48 PM, Gyungoh Yoo wrote: From: Gyungoh Yoo jack@skyworksinc.com Signed-off-by: Gyungoh Yoo jack@skyworksinc.com Please add the following 'Acked-by's when you send this patch next time. Acked-by: Jingoo Han jg1@samsung.com Acked-by: Bryan Wu coolo...@gmail.com I see. Thank you. Best regards, Jingoo Han --- Changes v10: Removed trivial get_brightness implementations Changes v9: Nothing Changes v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Changes v7: Modified licensing text to GPLv2 Changes v6: Added new line character at the end of line of dev_err() Changes v5: Move sky81452-backlight.h to include/linux/platform_data Changes v4: Reordering header files for readability Removed calling to backlight_device_unregister() Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified DBG messages Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors drivers/video/backlight/Kconfig | 10 + drivers/video/backlight/Makefile | 1 + drivers/video/backlight/sky81452-backlight.c | 334 +++ include/linux/platform_data/sky81452-backlight.h | 46 4 files changed, 391 insertions(+) create mode 100644 drivers/video/backlight/sky81452-backlight.c create mode 100644 include/linux/platform_data/sky81452-backlight.h diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 8d03924..2586fdd 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_SKY81452 + tristate Backlight driver for SKY81452 + depends on BACKLIGHT_CLASS_DEVICE MFD_SKY81452 + help + If you have a Skyworks SKY81452, say Y to enable the + backlight driver. + + To compile this driver as a module, choose M here: the module will + be called sky81452-backlight + config BACKLIGHT_TPS65217 tristate TPS65217 Backlight depends on BACKLIGHT_CLASS_DEVICE MFD_TPS65217 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index fcd50b73..d67073f 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o +obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/sky81452-backlight.c b/drivers/video/backlight/sky81452- backlight.c new file mode 100644 index 000..8105597 --- /dev/null +++ b/drivers/video/backlight/sky81452-backlight.c @@ -0,0 +1,334 @@ +/* + * sky81452-backlight.cSKY81452 backlight driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo jack@skyworksinc.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see http://www.gnu.org/licenses/. + */ + +#include linux/backlight.h +#include linux/err.h +#include linux/gpio.h +#include linux/init.h +#include linux/kernel.h +#include linux/module.h +#include linux/of.h +#include linux/of_gpio.h +#include linux/platform_device.h +#include linux/regmap.h +#include linux/platform_data/sky81452-backlight.h +#include linux/slab.h + +/* registers */ +#define SKY81452_REG0 0x00 +#define SKY81452_REG1 0x01 +#define SKY81452_REG2 0x02 +#define SKY81452_REG4 0x04 +#define SKY81452_REG5 0x05 + +/* bit mask */ +#define SKY81452_CS0xFF +#define SKY81452_EN0x3F +#define SKY81452_IGPW 0x20 +#define SKY81452_PWMMD 0x10 +#define SKY81452_PHASE 0x08 +#define SKY81452_ILIM 0x04 +#define SKY81452_VSHRT 0x03 +#define
Re: [PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Wed, Dec 03, 2014 at 11:02:29AM +0100, Oliver Neukum wrote:
> On Wed, 2014-12-03 at 16:05 +0900, gyun...@gmail.com wrote:
> > +static ssize_t sky81452_bl_store_enable(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t
> > count)
> > +{
> > + struct regmap *regmap = bl_get_data(to_backlight_device(dev));
> > + unsigned long value;
> > + int ret;
> > +
> > + ret = kstrtoul(buf, 16, );
> > + if (IS_ERR_VALUE(ret))
> > + return ret;
> > +
> > + ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
> > + value << CTZ(SKY81452_EN));
>
> No range checking for value?
Avaiable range is from 0 to SKY81452_EN.
regmap_update_bits() is masking the value.
>
> > + if (IS_ERR_VALUE(ret))
> > + return ret;
> > +
> > + return count;
> > +}
>
> Regards
> Oliver
>
> --
> Oliver Neukum
>
--
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Re: [PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
On Wed, Dec 03, 2014 at 11:02:29AM +0100, Oliver Neukum wrote:
On Wed, 2014-12-03 at 16:05 +0900, gyun...@gmail.com wrote:
+static ssize_t sky81452_bl_store_enable(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t
count)
+{
+ struct regmap *regmap = bl_get_data(to_backlight_device(dev));
+ unsigned long value;
+ int ret;
+
+ ret = kstrtoul(buf, 16, value);
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+ ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
+ value CTZ(SKY81452_EN));
No range checking for value?
Avaiable range is from 0 to SKY81452_EN.
regmap_update_bits() is masking the value.
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+ return count;
+}
Regards
Oliver
--
Oliver Neukum oneu...@suse.de
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[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Bryan Wu
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Nothing
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
.../video/backlight/sky81452-backlight.txt | 29 ++
1 file changed, 29 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --git
a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
new file mode 100644
index 000..8daebf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
@@ -0,0 +1,29 @@
+SKY81452-backlight bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452-backlight"
+
+Optional properties:
+- name : Name of backlight device. Default is 'lcd-backlight'.
+- gpios: GPIO to use to EN pin.
+ See Documentation/devicetree/bindings/gpio/gpio.txt
+- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
+- skyworks,ignore-pwm : Ignore both PWM input
+- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
+- skyworks,phase-shift : Enable phase shift mode
+- skyworks,ovp-level : Over-voltage protection level.
+ Should be between 14 or 28V.
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
+- skyworks,current-limit : It should be 2300mA or 2750mA.
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
--
1.9.1
--
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[PATCH v10 5/6] devicetree: Add vendor prefix for Skyworks Solutions, Inc.
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added vendor prefix for Skyworks Solutions, Inc. Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2..68143f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -140,6 +140,7 @@ sii Seiko Instruments, Inc. silergySilergy Corp. sirf SiRF Technology, Inc. sitronix Sitronix Technology Corporation +skyworks Skyworks Solutions, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. solidrun SolidRun -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
---
Changes v10:
Removed trivial get_brightness implementations
Changes v9:
Nothing
Changes v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Reordering header files for readability
Removed calling to backlight_device_unregister()
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Modified DBG messages
Changes v2:
Added 'compatible' attribute in the driver
Added message for exception or errors
drivers/video/backlight/Kconfig | 10 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/sky81452-backlight.c | 334 +++
include/linux/platform_data/sky81452-backlight.h | 46
4 files changed, 391 insertions(+)
create mode 100644 drivers/video/backlight/sky81452-backlight.c
create mode 100644 include/linux/platform_data/sky81452-backlight.h
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 8d03924..2586fdd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -409,6 +409,16 @@ config BACKLIGHT_PANDORA
If you have a Pandora console, say Y to enable the
backlight driver.
+config BACKLIGHT_SKY81452
+ tristate "Backlight driver for SKY81452"
+ depends on BACKLIGHT_CLASS_DEVICE && MFD_SKY81452
+ help
+ If you have a Skyworks SKY81452, say Y to enable the
+ backlight driver.
+
+ To compile this driver as a module, choose M here: the module will
+ be called sky81452-backlight
+
config BACKLIGHT_TPS65217
tristate "TPS65217 Backlight"
depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fcd50b73..d67073f 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA) += pandora_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o
obj-$(CONFIG_BACKLIGHT_PWM)+= pwm_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
new file mode 100644
index 000..8105597
--- /dev/null
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -0,0 +1,334 @@
+/*
+ * sky81452-backlight.cSKY81452 backlight driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/* registers */
+#define SKY81452_REG0 0x00
+#define SKY81452_REG1 0x01
+#define SKY81452_REG2 0x02
+#define SKY81452_REG4 0x04
+#define SKY81452_REG5 0x05
+
+/* bit mask */
+#define SKY81452_CS0xFF
+#define SKY81452_EN0x3F
+#define SKY81452_IGPW 0x20
+#define SKY81452_PWMMD 0x10
+#define SKY81452_PHASE 0x08
+#define SKY81452_ILIM 0x04
+#define SKY81452_VSHRT 0x03
+#define SKY81452_OCP 0x80
+#define SKY81452_OTMP 0x40
+#define SKY81452_SHRT 0x3F
+#define SKY81452_OPN 0x3F
+
+#define SKY81452_DEFAULT_NAME "lcd-backlight"
+#define SKY81452_MAX_BRIGHTNESS(SKY81452_CS + 1)
+
+#define CTZ(b) __builtin_ctz(b)
+
+static int sky81452_bl_update_status(struct backlight_device *bd)
+{
+ const struct sky81452_bl_platform_data *pdata =
+ dev_get_platdata(bd->dev.parent);
+ const unsigned int brightness = (unsigned int)bd->props.brightness;
+ struct regmap *regmap = bl_get_data(bd);
+ int ret;
+
+ if (brightness > 0) {
+ ret = regmap_write(regmap, SKY81452_REG0, brightness - 1);
+ if (IS_ERR_VALUE(ret))
+ return ret;
+
+
[PATCH v10 1/6] mfd: Add support for Skyworks SKY81452 driver
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
Acked-by: Lee Jones
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Nothing
Changes v7:
Modified licensing text to GPLv2
Changes v6:
Added new line character at the end of line of dev_err()
Changes v5:
Move sky81452-backlight.h to include/linux/platform_data
Changes v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Changes v3:
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Changes v2:
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/sky81452.c | 108 +++
include/linux/mfd/sky81452.h | 31 +
4 files changed, 152 insertions(+)
create mode 100644 drivers/mfd/sky81452.c
create mode 100644 include/linux/mfd/sky81452.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1456ea7..a54244c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -693,6 +693,18 @@ config MFD_SM501_GPIO
lines on the SM501. The platform data is used to supply the
base number for the first GPIO line to register.
+config MFD_SKY81452
+ tristate "Skyworks Solutions SKY81452"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ This is the core driver for the Skyworks SKY81452 backlight and
+ voltage regulator device.
+
+ This driver can also be built as a module. If so, the module
+ will be called sky81452.
+
config MFD_SMSC
bool "SMSC ECE1099 series chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8bd54b1..d9683ea 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC)+= menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_SKY81452) += sky81452.o
intel-soc-pmic-objs:= intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
new file mode 100644
index 000..b0c9b04
--- /dev/null
+++ b/drivers/mfd/sky81452.c
@@ -0,0 +1,108 @@
+/*
+ * sky81452.c SKY81452 MFD driver
+ *
+ * Copyright 2014 Skyworks Solutions Inc.
+ * Author : Gyungoh Yoo
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static const struct regmap_config sky81452_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int sky81452_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = >dev;
+ const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
+ struct mfd_cell cells[2];
+ struct regmap *regmap;
+ int ret;
+
+ if (!pdata) {
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ }
+
+ regmap = devm_regmap_init_i2c(client, _config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ i2c_set_clientdata(client, regmap);
+
+ memset(cells, 0, sizeof(cells));
+ cells[0].name = "sky81452-backlight";
+ cells[0].of_compatible = "skyworks,sky81452-backlight";
+ cells[0].platform_data = pdata->bl_pdata;
+ cells[0].pdata_size = sizeof(*pdata->bl_pdata);
+ cells[1].name = "sky81452-regulator";
+ cells[1].platform_data = pdata->regulator_init_data;
+ cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
+
+ ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+ if (ret)
+ dev_err(dev, "failed to add child devices. err=%d\n", ret);
+
+ return ret;
+}
+
+static int sky81452_remove(struct i2c_client *client)
+{
+ mfd_r
[PATCH v10 3/6] devicetree: mfd: Add new SKY81452 mfd binding
From: Gyungoh Yoo
Signed-off-by: Gyungoh Yoo
---
Changes v10:
Nothing
Changes v9:
Nothing
Changes v8:
Made up the example for backlight DT
Changes v7:
Nothing
Changes v6:
Nothing
Changes v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Changes v4:
Nothing
Changes v3:
Nothing
Changes v2:
Added reg attribute for I2C slave address
Documentation/devicetree/bindings/mfd/sky81452.txt | 36 ++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
diff --git a/Documentation/devicetree/bindings/mfd/sky81452.txt
b/Documentation/devicetree/bindings/mfd/sky81452.txt
new file mode 100644
index 000..ab71473
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sky81452.txt
@@ -0,0 +1,36 @@
+SKY81452 bindings
+
+Required properties:
+- compatible : Must be "skyworks,sky81452"
+- reg : I2C slave address
+
+Required child nodes:
+- backlight: container node for backlight following the binding
+ in video/backlight/sky81452-backlight.txt
+- regulator: container node for regulators following the binding
+ in regulator/sky81452-regulator.txt
+
+Example:
+
+ sky81452@2c {
+ compatible = "skyworks,sky81452";
+ reg = <0x2c>;
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
+
+ regulator {
+ lout {
+ regulator-name = "sky81452-lout";
+ regulator-min-microvolt = <450>;
+ regulator-max-microvolt = <800>;
+ };
+ };
+ };
--
1.9.1
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[PATCH v10 6/6] devicetree: i2c: Add SKY81452 to the Trivial Devices list
From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v10: Nothing Changes v9: Nothing Changes v8: Nothing Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Add SKY81452 to the Trivial Devices list Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index fbde415..122fa1e 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -77,6 +77,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) sii,s35390a2-wire CMOS real-time clock +skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st-micro,24c256i2c serial eeprom (24cxx) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
