backlight: Add backlight_device parameter to check_fb

check_fb from backlight_ops lacks a reference to the backlight_device
that's being referred to. Add this parameter so a backlight_device
can be mapped to a single framebuffer, especially if the same driver
handles multiple devices on a single system.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/video/backlight/adx_bl.c b/drivers/video/backlight/adx_bl.c
index d769b0bab21a..a683dd1be4bc 100644
--- a/drivers/video/backlight/adx_bl.c
+++ b/drivers/video/backlight/adx_bl.c
@@ -56,7 +56,7 @@ static int adx_backlight_get_brightness(struct backlight_device *bldev)
         return brightness & 0xff;
 }
 
-static int adx_backlight_check_fb(struct fb_info *fb)
+static int adx_backlight_check_fb(struct backlight_device *bldev, struct fb_info *fb)
 {
         return 1;
 }
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 18829cf68b1b..b800cd4eeec8 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -38,7 +38,7 @@ static int fb_notifier_callback(struct notifier_block *self,
         mutex_lock(&bd->ops_lock);
         if (bd->ops)
                 if (!bd->ops->check_fb ||
-                    bd->ops->check_fb(evdata->info)) {
+                    bd->ops->check_fb(bd, evdata->info)) {
                         bd->props.fb_blank = *(int *)evdata->data;
                         if (bd->props.fb_blank == FB_BLANK_UNBLANK)
                                 bd->props.state &= ~BL_CORE_FBBLANK;