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backlight: gpio_backlight: Drop output GPIO direction check for initial power state 

[ Upstream commit fe1328b5b2 ]

So, let's drop output GPIO direction check and only check GPIO value to set
the initial power state.

Fixes: 706dc68102 ("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>
This commit is contained in:
Ying Liu 2023-07-21 09:29:03 +00:00 committed by Greg Kroah-Hartman
parent 9de7eb95bb
commit d7add20019
1 changed files with 1 additions and 2 deletions
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3
drivers/video/backlight/gpio_backlight.c
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@ -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;