From: Laurent Pinchart Date: Wed, 15 Aug 2012 16:10:03 +0000 (+0200) Subject: fbdev: sh_mobile_lcdc: Store the backlight brightness internally X-Git-Tag: firefly_0821_release~3680^2~1437^2~10^2~7 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=656d4f332c02b14e62fe3f4247a1dcdc33961de6;p=firefly-linux-kernel-4.4.55.git fbdev: sh_mobile_lcdc: Store the backlight brightness internally There's no need to query the hardware for the currenty brightness value through a platform data callback when we can cache the value internally in the LCDC driver. Signed-off-by: Laurent Pinchart --- diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index c169581c3a72..dd8dd41b4acd 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -2282,6 +2282,7 @@ static int sh_mobile_lcdc_update_bl(struct backlight_device *bdev) bdev->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK)) brightness = 0; + ch->bl_brightness = brightness; return ch->cfg->bl_info.set_brightness(brightness); } @@ -2289,7 +2290,7 @@ static int sh_mobile_lcdc_get_brightness(struct backlight_device *bdev) { struct sh_mobile_lcdc_chan *ch = bl_get_data(bdev); - return ch->cfg->bl_info.get_brightness(); + return ch->bl_brightness; } static int sh_mobile_lcdc_check_fb(struct backlight_device *bdev, diff --git a/drivers/video/sh_mobile_lcdcfb.h b/drivers/video/sh_mobile_lcdcfb.h index 0f92f6544b94..f839adef1d90 100644 --- a/drivers/video/sh_mobile_lcdcfb.h +++ b/drivers/video/sh_mobile_lcdcfb.h @@ -94,6 +94,7 @@ struct sh_mobile_lcdc_chan { /* Backlight */ struct backlight_device *bl; + unsigned int bl_brightness; /* FB */ struct fb_info *info;