On 5/19/23 22:05, Alexandru Ardelean wrote:
From: Yannick Fertre <yannick.fertre@xxxxxxxxxxx>
Add new property to set a brightness by default at probe.
Reviewed-by: Philippe CORNU <philippe.cornu@xxxxxxxxxxx>
Hi Alexandru,
Many thanks for your patch.
You have sent a patch originally pushed on the STMicroelectronics github
as mentioned in your commit message (no problem with that :-). But, the
"Reviewed-by" inside this github patch is linked to our gerrit STM
internal server so you can not use it directly for mainlining this patch.
So please, re-send your this patch without my "Reviewed-by".
Many thanks
Philippe :-)
Signed-off-by: Yannick Fertre <yannick.fertre@xxxxxxxxxxx>
Signed-off-by: Alexandru Ardelean <alex@xxxxxxxxxxx>
---
Link to original patch:
https://github.com/STMicroelectronics/linux/commit/c4067d7bd883c6fa14ffd49892c4ce663cdafe98
drivers/video/backlight/gpio_backlight.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 6f78d928f054..d3fa3a8bef4d 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -53,6 +53,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
struct backlight_device *bl;
struct gpio_backlight *gbl;
int ret, init_brightness, def_value;
+ u32 value;
gbl = devm_kzalloc(dev, sizeof(*gbl), GFP_KERNEL);
if (gbl == NULL)
@@ -93,7 +94,11 @@ static int gpio_backlight_probe(struct platform_device *pdev)
else
bl->props.power = FB_BLANK_UNBLANK;
- bl->props.brightness = 1;
+ ret = device_property_read_u32(dev, "default-brightness-level", &value);
+ if (!ret && value <= props.max_brightness)
+ bl->props.brightness = value;
+ else
+ bl->props.brightness = 1;
init_brightness = backlight_get_brightness(bl);
ret = gpiod_direction_output(gbl->gpiod, init_brightness);
