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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-10-22 10:36:29 +0200
committerLee Jones <lee.jones@linaro.org>2019-11-11 12:34:01 +0100
commitd17465a0af3f669f56289649be0fe6ab0fb63e39 (patch)
tree57e31b9470aeb8ce7e4f96562a55aea23fe0be28 /drivers/video/backlight/gpio_backlight.c
parentbacklight: gpio: Remove unused fields from platform data (diff)
downloadlinux-d17465a0af3f669f56289649be0fe6ab0fb63e39.tar.xz
linux-d17465a0af3f669f56289649be0fe6ab0fb63e39.zip
backlight: gpio: Use a helper variable for &pdev->dev
Instead of dereferencing pdev each time, use a helper variable for the associated device pointer. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/video/backlight/gpio_backlight.c')
-rw-r--r--drivers/video/backlight/gpio_backlight.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index ddc7d3b288b7..d6969fae25cd 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -78,29 +78,29 @@ static int gpio_backlight_initial_power_state(struct gpio_backlight *gbl)
static int gpio_backlight_probe(struct platform_device *pdev)
{
- struct gpio_backlight_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
+ struct device *dev = &pdev->dev;
+ struct gpio_backlight_platform_data *pdata = dev_get_platdata(dev);
struct backlight_properties props;
struct backlight_device *bl;
struct gpio_backlight *gbl;
int ret, init_brightness;
- gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
+ gbl = devm_kzalloc(dev, sizeof(*gbl), GFP_KERNEL);
if (gbl == NULL)
return -ENOMEM;
- gbl->dev = &pdev->dev;
+ gbl->dev = dev;
if (pdata)
gbl->fbdev = pdata->fbdev;
- gbl->def_value = device_property_read_bool(&pdev->dev, "default-on");
+ gbl->def_value = device_property_read_bool(dev, "default-on");
- gbl->gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_ASIS);
+ gbl->gpiod = devm_gpiod_get(dev, NULL, GPIOD_ASIS);
if (IS_ERR(gbl->gpiod)) {
ret = PTR_ERR(gbl->gpiod);
if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
+ dev_err(dev,
"Error: The gpios parameter is missing or invalid.\n");
return ret;
}
@@ -108,11 +108,10 @@ static int gpio_backlight_probe(struct platform_device *pdev)
memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_RAW;
props.max_brightness = 1;
- bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
- &pdev->dev, gbl, &gpio_backlight_ops,
- &props);
+ bl = devm_backlight_device_register(dev, dev_name(dev), dev, gbl,
+ &gpio_backlight_ops, &props);
if (IS_ERR(bl)) {
- dev_err(&pdev->dev, "failed to register backlight\n");
+ dev_err(dev, "failed to register backlight\n");
return PTR_ERR(bl);
}
@@ -122,7 +121,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
init_brightness = gpio_backlight_get_next_brightness(bl);
ret = gpiod_direction_output(gbl->gpiod, init_brightness);
if (ret) {
- dev_err(&pdev->dev, "failed to set initial brightness\n");
+ dev_err(dev, "failed to set initial brightness\n");
return ret;
}