[v2,6/7] backlight: gpio: remove def_value from struct gpio_backlight
diff mbox series

Message ID 20190722150302.29526-7-brgl@bgdev.pl
State New
Headers show
Series
  • backlight: gpio: simplify the driver
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Commit Message

Bartosz Golaszewski July 22, 2019, 3:03 p.m. UTC
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

This field is unused outside of probe(). There's no need to store it.
We can make it into a local variable.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 drivers/video/backlight/gpio_backlight.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Comments

Daniel Thompson July 22, 2019, 3:22 p.m. UTC | #1
On Mon, Jul 22, 2019 at 05:03:01PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> 
> This field is unused outside of probe(). There's no need to store it.
> We can make it into a local variable.
> 
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>

> ---
>  drivers/video/backlight/gpio_backlight.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
> index 70882556f047..cd6a75bca9cc 100644
> --- a/drivers/video/backlight/gpio_backlight.c
> +++ b/drivers/video/backlight/gpio_backlight.c
> @@ -21,7 +21,6 @@
>  struct gpio_backlight {
>  	struct device *fbdev;
>  	struct gpio_desc *gpiod;
> -	int def_value;
>  };
>  
>  static int gpio_backlight_update_status(struct backlight_device *bl)
> @@ -61,7 +60,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
>  	struct backlight_device *bl;
>  	struct gpio_backlight *gbl;
>  	enum gpiod_flags flags;
> -	int ret;
> +	int ret, def_value;
>  
>  	gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
>  	if (gbl == NULL)
> @@ -70,8 +69,8 @@ static int gpio_backlight_probe(struct platform_device *pdev)
>  	if (pdata)
>  		gbl->fbdev = pdata->fbdev;
>  
> -	gbl->def_value = device_property_read_bool(&pdev->dev, "default-on");
> -	flags = gbl->def_value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
> +	def_value = device_property_read_bool(&pdev->dev, "default-on");
> +	flags = def_value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
>  
>  	gbl->gpiod = devm_gpiod_get(&pdev->dev, NULL, flags);
>  	if (IS_ERR(gbl->gpiod)) {
> @@ -94,7 +93,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
>  		return PTR_ERR(bl);
>  	}
>  
> -	bl->props.brightness = gbl->def_value;
> +	bl->props.brightness = def_value;
>  	backlight_update_status(bl);
>  
>  	platform_set_drvdata(pdev, bl);
> -- 
> 2.21.0
>

Patch
diff mbox series

diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 70882556f047..cd6a75bca9cc 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -21,7 +21,6 @@ 
 struct gpio_backlight {
 	struct device *fbdev;
 	struct gpio_desc *gpiod;
-	int def_value;
 };
 
 static int gpio_backlight_update_status(struct backlight_device *bl)
@@ -61,7 +60,7 @@  static int gpio_backlight_probe(struct platform_device *pdev)
 	struct backlight_device *bl;
 	struct gpio_backlight *gbl;
 	enum gpiod_flags flags;
-	int ret;
+	int ret, def_value;
 
 	gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
 	if (gbl == NULL)
@@ -70,8 +69,8 @@  static int gpio_backlight_probe(struct platform_device *pdev)
 	if (pdata)
 		gbl->fbdev = pdata->fbdev;
 
-	gbl->def_value = device_property_read_bool(&pdev->dev, "default-on");
-	flags = gbl->def_value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
+	def_value = device_property_read_bool(&pdev->dev, "default-on");
+	flags = def_value ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
 
 	gbl->gpiod = devm_gpiod_get(&pdev->dev, NULL, flags);
 	if (IS_ERR(gbl->gpiod)) {
@@ -94,7 +93,7 @@  static int gpio_backlight_probe(struct platform_device *pdev)
 		return PTR_ERR(bl);
 	}
 
-	bl->props.brightness = gbl->def_value;
+	bl->props.brightness = def_value;
 	backlight_update_status(bl);
 
 	platform_set_drvdata(pdev, bl);