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authorBruno Prémont <bonbons@linux-vserver.org>2010-02-21 00:20:01 +0100
committerRichard Purdie <rpurdie@linux.intel.com>2010-03-16 19:47:54 +0000
commit57e148b6a975980944f4466ccb669b1d02dfc6a1 (patch)
treedcd32f5fda62e57d5ea0eef5dcad0f1c81c90f4b
parenta4ebb780e194e8751dc22deeabcddd3fdc8f18f0 (diff)
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>
-rw-r--r--drivers/video/backlight/adx_bl.c2
-rw-r--r--drivers/video/backlight/backlight.c2
-rw-r--r--include/linux/backlight.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/video/backlight/adx_bl.c b/drivers/video/backlight/adx_bl.c
index d769b0bab21..a683dd1be4b 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 18829cf68b1..b800cd4eeec 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;
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index ee377d79199..21cd866d24c 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -47,7 +47,7 @@ struct backlight_ops {
int (*get_brightness)(struct backlight_device *);
/* Check if given framebuffer device is the one bound to this backlight;
return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */
- int (*check_fb)(struct fb_info *);
+ int (*check_fb)(struct backlight_device *, struct fb_info *);
};
/* This structure defines all the properties of a backlight */