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

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

Fixes: 706dc68 ("backlight: gpio: Explicitly set the direction of the GPIO")
Signed-off-by: Liu Ying <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Acked-by: Bartosz Golaszewski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: Ying Liu

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;