5.15-stable review patch. If anyone has any objections, please let me know.
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From: Ying Liu victor.liu@nxp.com
[ Upstream commit fe1328b5b2a087221e31da77e617f4c2b70f3b7f ]
So, let's drop output GPIO direction check and only check GPIO value to set the initial power state.
Fixes: 706dc68102bc ("backlight: gpio: Explicitly set the direction of the GPIO") Signed-off-by: Liu Ying victor.liu@nxp.com Reviewed-by: Andy Shevchenko andy@kernel.org Acked-by: Linus Walleij linus.walleij@linaro.org Acked-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Link: https://lore.kernel.org/r/20230721093342.1532531-1-victor.liu@nxp.com Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/backlight/gpio_backlight.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c index 5c5c99f7979e3..30ec5b6845335 100644 --- a/drivers/video/backlight/gpio_backlight.c +++ b/drivers/video/backlight/gpio_backlight.c @@ -87,8 +87,7 @@ static int gpio_backlight_probe(struct platform_device *pdev) /* Not booted with device tree or no phandle link to the node */ bl->props.power = def_value ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; - else if (gpiod_get_direction(gbl->gpiod) == 0 && - gpiod_get_value_cansleep(gbl->gpiod) == 0) + else if (gpiod_get_value_cansleep(gbl->gpiod) == 0) bl->props.power = FB_BLANK_POWERDOWN; else bl->props.power = FB_BLANK_UNBLANK;