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path: root/drivers/video/backlight/pwm_bl.c
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Diffstat (limited to 'drivers/video/backlight/pwm_bl.c')
-rw-r--r--drivers/video/backlight/pwm_bl.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 38ca88bc5c3e..cb5ae4c08469 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -115,11 +115,6 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
return 0;
}
-static int pwm_backlight_get_brightness(struct backlight_device *bl)
-{
- return bl->props.brightness;
-}
-
static int pwm_backlight_check_fb(struct backlight_device *bl,
struct fb_info *info)
{
@@ -130,7 +125,6 @@ static int pwm_backlight_check_fb(struct backlight_device *bl,
static const struct backlight_ops pwm_backlight_ops = {
.update_status = pwm_backlight_update_status,
- .get_brightness = pwm_backlight_get_brightness,
.check_fb = pwm_backlight_check_fb,
};
@@ -179,6 +173,7 @@ static int pwm_backlight_parse_dt(struct device *dev,
data->max_brightness--;
}
+ data->enable_gpio = -EINVAL;
return 0;
}
@@ -245,13 +240,10 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->dev = &pdev->dev;
pb->enabled = false;
- pb->enable_gpio = devm_gpiod_get(&pdev->dev, "enable");
+ pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable");
if (IS_ERR(pb->enable_gpio)) {
ret = PTR_ERR(pb->enable_gpio);
- if (ret == -ENOENT)
- pb->enable_gpio = NULL;
- else
- goto err_alloc;
+ goto err_alloc;
}
/*
@@ -398,7 +390,6 @@ static const struct dev_pm_ops pwm_backlight_pm_ops = {
static struct platform_driver pwm_backlight_driver = {
.driver = {
.name = "pwm-backlight",
- .owner = THIS_MODULE,
.pm = &pwm_backlight_pm_ops,
.of_match_table = of_match_ptr(pwm_backlight_of_match),
},