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authorWilliam Lai <b04597@freescale.com>2010-04-01 13:19:07 +0800
committerAlejandro Gonzalez <alex.gonzalez@digi.com>2010-05-25 11:20:19 +0200
commitc926b11e1ea998a51265088f73f2fa880a7e95c8 (patch)
tree58f3e588ab9f18cda3703649b076969a4f80ccb4 /drivers
parent3f59fe0ee827aa12cecd8bcf1573a66945e5b02b (diff)
ENGR00122206 MX53-EVK pwm-backlight: PWM backlight enhancement
Don't trun off the pwm backlight when blanking the fore-ground. Signed-off-by: William Lai <b04597@freescale.com> Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/backlight/pwm_bl.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 887166267443..29024e83b36a 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -56,9 +56,19 @@ static int pwm_backlight_get_brightness(struct backlight_device *bl)
return bl->props.brightness;
}
+static int pwm_backlight_check_fb(struct fb_info *info)
+{
+ char *id = info->fix.id;
+ if (!strcmp(id, "DISP3 BG"))
+ return 1;
+ else
+ return 0;
+}
+
static struct backlight_ops pwm_backlight_ops = {
.update_status = pwm_backlight_update_status,
.get_brightness = pwm_backlight_get_brightness,
+ .check_fb = pwm_backlight_check_fb,
};
static int pwm_backlight_probe(struct platform_device *pdev)