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Commit 716bdf18 authored by Pavel Machek's avatar Pavel Machek Committed by Richard Purdie
Browse files

backlight: Fix backlight limiting on spitz/corgi devices 



On spitz (& similar) machines, if battery is running low, backlight
needs
to be limited to lower step.  Unfortunately, current code uses &= for
limiting, turning backlight off completely for some backlight settings.
Fix that.

Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
parent 1e0fa6bd

drivers/video/backlight/corgi_lcd.c

+3 −2
Original line number Diff line number Diff line
@@ -433,8 +433,9 @@ static int corgi_bl_update_status(struct backlight_device *bd) 


	if (corgibl_flags & CORGIBL_SUSPENDED)

		intensity = 0;

	if (corgibl_flags & CORGIBL_BATTLOW)

		intensity &= lcd->limit_mask;



	if ((corgibl_flags & CORGIBL_BATTLOW) && intensity > lcd->limit_mask)

		intensity = lcd->limit_mask;



	return corgi_bl_set_intensity(lcd, intensity);

}