Re: [RESEND 13/14] leds: flashlight: mt6370: Add Mediatek MT6370 flashlight support
Hi ChiaEn,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on pavel-leds/for-next]
[also build test WARNING on lee-mfd/for-mfd-next
lee-backlight/for-backlight-next v5.18 next-20220602]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/intel-lab-lkp/linux/commits/ChiaEn-Wu/Add-Mediatek-MT6370-PMIC-support/20220531-211432
base: git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git
for-next
config: nios2-allyesconfig
(https://download.01.org/0day-ci/archive/20220602/202206021739.lzju7zjg-...@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://github.com/intel-lab-lkp/linux/commit/805a8af17c769562ec4b85e9b7d2669d004fe3a6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review
ChiaEn-Wu/Add-Mediatek-MT6370-PMIC-support/20220531-211432
git checkout 805a8af17c769562ec4b85e9b7d2669d004fe3a6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1
O=build_dir ARCH=nios2 SHELL=/bin/bash drivers/gpu/drm/v3d/ drivers/leds/
sound/core/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot
All warnings (new ones prefixed by >>):
In file included from include/linux/device.h:15,
from include/linux/leds.h:12,
from include/linux/led-class-flash.h:11,
from drivers/leds/flash/leds-mt6370-flash.c:8:
drivers/leds/flash/leds-mt6370-flash.c: In function 'mt6370_led_probe':
>> drivers/leds/flash/leds-mt6370-flash.c:591:17: warning: format '%lu' expects
>> argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka
>> 'unsigned int'} [-Wformat=]
591 | "No child node or node count over max led number
%lu\n", count);
|
^~~
include/linux/dev_printk.h:110:30: note: in definition of macro
'dev_printk_index_wrap'
110 | _p_func(dev, fmt, ##__VA_ARGS__);
\
| ^~~
include/linux/dev_printk.h:144:56: note: in expansion of macro 'dev_fmt'
144 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt),
##__VA_ARGS__)
|^~~
drivers/leds/flash/leds-mt6370-flash.c:590:17: note: in expansion of macro
'dev_err'
590 | dev_err(>dev,
| ^~~
drivers/leds/flash/leds-mt6370-flash.c:591:68: note: format string is
defined here
591 | "No child node or node count over max led number
%lu\n", count);
| ~~^
||
|
long unsigned int
| %u
vim +591 drivers/leds/flash/leds-mt6370-flash.c
580
581 static int mt6370_led_probe(struct platform_device *pdev)
582 {
583 struct mt6370_priv *priv;
584 struct fwnode_handle *child;
585 size_t count;
586 int i = 0, ret;
587
588 count = device_get_child_node_count(>dev);
589 if (!count || count > MT6370_MAX_LEDS) {
590 dev_err(>dev,
> 591 "No child node or node count over max led number
> %lu\n", count);
592 return -EINVAL;
593 }
594
595 priv = devm_kzalloc(>dev, struct_size(priv, leds, count),
596 GFP_KERNEL);
597 if (!priv)
598 return -ENOMEM;
599
600 priv->leds_count = count;
601 priv->dev = >dev;
602 mutex_init(>lock);
603
604 priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
605 if (!priv->regmap) {
606 dev_err(>dev, "Failed to get parent regmap\n");
607 return -ENODEV;
608 }
609
610 device_for_each_child_node(>dev, child) {
611 struct mt6370_led *led = priv->leds + i;
612 struct led_init_data init_data = { .fwnode = child, };
613
614 led->priv = priv;
615 ret = mt6370_init_common_properties(led, _data);
616
[RESEND 13/14] leds: flashlight: mt6370: Add Mediatek MT6370 flashlight support
From: Alice Chen
Add Mediatek MT6370 flashlight support
Signed-off-by: Alice Chen
---
drivers/leds/flash/Kconfig | 9 +
drivers/leds/flash/Makefile| 1 +
drivers/leds/flash/leds-mt6370-flash.c | 665 +
3 files changed, 675 insertions(+)
create mode 100644 drivers/leds/flash/leds-mt6370-flash.c
diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig
index d3eb689b193c..d38e263aaf09 100644
--- a/drivers/leds/flash/Kconfig
+++ b/drivers/leds/flash/Kconfig
@@ -90,4 +90,13 @@ config LEDS_SGM3140
This option enables support for the SGM3140 500mA Buck/Boost Charge
Pump LED Driver.
+config LEDS_MT6370_FLASHLIGHT
+ tristate "Flash LED Support for Mediatek MT6370 PMIC"
+ depends on LEDS_CLASS
+ depends on MFD_MT6370
+ help
+ Support 2 channels and torch/strobe mode.
+ Say Y here to enable support for
+ MT6370_FLASH_LED device.
+
endif # LEDS_CLASS_FLASH
diff --git a/drivers/leds/flash/Makefile b/drivers/leds/flash/Makefile
index 0acbddc0b91b..4c4c1710f506 100644
--- a/drivers/leds/flash/Makefile
+++ b/drivers/leds/flash/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_LEDS_MAX77693) += leds-max77693.o
obj-$(CONFIG_LEDS_RT4505) += leds-rt4505.o
obj-$(CONFIG_LEDS_RT8515) += leds-rt8515.o
obj-$(CONFIG_LEDS_SGM3140) += leds-sgm3140.o
+obj-$(CONFIG_LEDS_MT6370_FLASHLIGHT) += leds-mt6370-flash.o
diff --git a/drivers/leds/flash/leds-mt6370-flash.c
b/drivers/leds/flash/leds-mt6370-flash.c
new file mode 100644
index ..8f6796aae3e1
--- /dev/null
+++ b/drivers/leds/flash/leds-mt6370-flash.c
@@ -0,0 +1,665 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+enum {
+ MT6370_LED_FLASH1,
+ MT6370_LED_FLASH2,
+ MT6370_MAX_LEDS
+};
+
+/* Virtual definition for multicolor */
+
+#define MT6370_REG_FLEDEN 0x17E
+#define MT6370_REG_STRBTO 0x173
+#define MT6370_REG_CHGSTAT20x1D1
+#define MT6370_REG_FLEDSTAT1 0x1D9
+#defineMT6370_REG_FLEDISTRB(_id) (0x174 + 4 * _id)
+#define MT6370_REG_FLEDITOR(_id) (0x175 + 4 * _id)
+#define MT6370_ITORCH_MASK GENMASK(4, 0)
+#define MT6370_ISTROBE_MASKGENMASK(6, 0)
+#define MT6370_STRBTO_MASK GENMASK(6, 0)
+#define MT6370_TORCHEN_MASKBIT(3)
+#define MT6370_STROBEN_MASKBIT(2)
+#define MT6370_FLCSEN_MASK(_id)BIT(MT6370_LED_FLASH2 - _id)
+#define MT6370_FLCSEN_MASK_ALL (BIT(0) | BIT(1))
+#define MT6370_FLEDCHGVINOVP_MASK BIT(3)
+#define MT6370_FLED1STRBTO_MASKBIT(11)
+#define MT6370_FLED2STRBTO_MASKBIT(10)
+#define MT6370_FLED1STRB_MASK BIT(9)
+#define MT6370_FLED2STRB_MASK BIT(8)
+#define MT6370_FLED1SHORT_MASK BIT(7)
+#define MT6370_FLED2SHORT_MASK BIT(6)
+#define MT6370_FLEDLVF_MASKBIT(3)
+
+#define MT6370_LED_JOINT 2
+#define MT6370_RANGE_FLED_REG 4
+#define MT6370_ITORCH_MINUA25000
+#define MT6370_ITORCH_STEPUA 12500
+#define MT6370_ITORCH_MAXUA40
+#define MT6370_ITORCH_DOUBLE_MAXUA 80
+#define MT6370_ISTRB_MINUA 5
+#define MT6370_ISTRB_STEPUA12500
+#define MT6370_ISTRB_MAXUA 150
+#define MT6370_ISTRB_DOUBLE_MAXUA 300
+#define MT6370_STRBTO_MINUS64000
+#define MT6370_STRBTO_STEPUS 32000
+#define MT6370_STRBTO_MAXUS2432000
+
+#define STATE_OFF 0
+#define STATE_KEEP 1
+#define STATE_ON 2
+
+struct mt6370_led {
+ struct led_classdev_flash flash;
+ struct v4l2_flash *v4l2_flash;
+ struct mt6370_priv *priv;
+ u32 led_no;
+ u32 default_state;
+};
+
+struct mt6370_priv {
+ struct device *dev;
+ struct regmap *regmap;
+ struct mutex lock;
+ unsigned int fled_strobe_used;
+ unsigned int fled_torch_used;
+ unsigned int leds_active;
+ unsigned int leds_count;
+ struct mt6370_led leds[];
+};
+
+static int mt6370_torch_brightness_set(struct led_classdev *lcdev,
+ enum led_brightness level)
+{
+ struct mt6370_led *led =
+container_of(lcdev, struct mt6370_led, flash.led_cdev);
+ struct mt6370_priv *priv = led->priv;
+ u32 led_enable_mask = (led->led_no == MT6370_LED_JOINT) ?
+ MT6370_FLCSEN_MASK_ALL :
+ MT6370_FLCSEN_MASK(led->led_no);
+ u32 enable_mask = MT6370_TORCHEN_MASK | led_enable_mask;
+ u32 val = level ? led_enable_mask : 0;
+ u32 prev = priv->fled_torch_used, curr;
+ int ret, i;
+
+ mutex_lock(>lock);
+
+ /*
