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platform/x86: fujitsu-laptop: account for backlight power when determining brightness
The comment for the get_brightness backlight device callback in include/linux/backlight.h states that it should "return the current backlight brightness (accounting for power, fb_blank etc.)". fujitsu-laptop violates that premise by simply returning the value to which ACPI function GBLL evaluates to. Make sure 0 is returned when backlight power is turned off. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Jonathan Woithe <jwoithe@just42.net> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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@ -423,7 +423,7 @@ static int get_max_brightness(void)
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static int bl_get_brightness(struct backlight_device *b)
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{
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return get_lcd_level();
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return b->props.power == FB_BLANK_POWERDOWN ? 0 : get_lcd_level();
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}
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static int bl_update_status(struct backlight_device *b)
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