The SKY81452 backlight driver just obtains a GPIO (named "gpios"
in the device tree) drives it high and leaves it high until the
driver is removed.
Switch to use GPIO descriptors for this, simple and
straight-forward.
Cc: Gyungoh Yoo <jack....@skyworksinc.com>
Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
---
drivers/video/backlight/sky81452-backlight.c | 18 ++++--------------
.../linux/platform_data/sky81452-backlight.h | 6 ++++--
2 files changed, 8 insertions(+), 16 deletions(-)
diff --git a/drivers/video/backlight/sky81452-backlight.c
b/drivers/video/backlight/sky81452-backlight.c
index 2355f00f5773..81d2c8f3ca50 100644
--- a/drivers/video/backlight/sky81452-backlight.c
+++ b/drivers/video/backlight/sky81452-backlight.c
@@ -8,12 +8,11 @@
#include <linux/backlight.h>
#include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.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>
@@ -182,7 +181,7 @@ static struct sky81452_bl_platform_data
*sky81452_bl_parse_dt(
pdata->ignore_pwm = of_property_read_bool(np, "skyworks,ignore-pwm");
pdata->dpwm_mode = of_property_read_bool(np, "skyworks,dpwm-mode");
pdata->phase_shift = of_property_read_bool(np, "skyworks,phase-shift");
- pdata->gpio_enable = of_get_gpio(np, 0);
+ pdata->gpiod_enable = devm_gpiod_get_optional(dev, NULL,
GPIOD_OUT_HIGH);
ret = of_property_count_u32_elems(np, "led-sources");
if (ret < 0) {
@@ -264,15 +263,6 @@ static int sky81452_bl_probe(struct platform_device *pdev)
return PTR_ERR(pdata);
}
- if (gpio_is_valid(pdata->gpio_enable)) {
- ret = devm_gpio_request_one(dev, pdata->gpio_enable,
- GPIOF_OUT_INIT_HIGH, "sky81452-en");
- if (ret < 0) {
- dev_err(dev, "failed to request GPIO. err=%d\n", ret);
- return ret;
- }
- }
-
ret = sky81452_bl_init_device(regmap, pdata);
if (ret < 0) {
dev_err(dev, "failed to initialize. err=%d\n", ret);
@@ -312,8 +302,8 @@ static int sky81452_bl_remove(struct platform_device *pdev)
bd->props.brightness = 0;
backlight_update_status(bd);
- if (gpio_is_valid(pdata->gpio_enable))
- gpio_set_value_cansleep(pdata->gpio_enable, 0);
+ if (pdata->gpiod_enable)
+ gpiod_set_value_cansleep(pdata->gpiod_enable, 0);
return 0;
}
diff --git a/include/linux/platform_data/sky81452-backlight.h
b/include/linux/platform_data/sky81452-backlight.h
index 02653d92d84f..d6f46670d923 100644
--- a/include/linux/platform_data/sky81452-backlight.h
+++ b/include/linux/platform_data/sky81452-backlight.h
@@ -9,11 +9,13 @@
#ifndef _SKY81452_BACKLIGHT_H
#define _SKY81452_BACKLIGHT_H
+#include <linux/gpio/consumer.h>
+
/**
* struct sky81452_platform_data
* @name: backlight driver name.
If it is not defined, default name is lcd-backlight.
- * @gpio_enable:GPIO number which control EN pin
+ * @gpios_enable:GPIO descriptor which control EN pin
* @enable: Enable mask for current sink channel 1, 2, 3, 4, 5 and 6.
* @ignore_pwm: true if DPWMI should be ignored.
* @dpwm_mode: true is DPWM dimming mode, otherwise Analog dimming mode.
@@ -23,7 +25,7 @@
*/
struct sky81452_bl_platform_data {
const char *name;
- int gpio_enable;
+ struct gpio_desc *gpiod_enable;
unsigned int enable;
bool ignore_pwm;
bool dpwm_mode;
--
2.25.4
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