lcd: add lcd_device to check_fb() entry in lcd_ops

Add the lcd_device being checked to the check_fb entry of lcd_ops.  This
ensures that any driver using this to check against it's own state can do
so, and also makes all the calls in lcd_ops more orthogonal in their
arguments.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/backlight/lcd.c

@@ -33,7 +33,7 @@ static int fb_notifier_callback(struct notifier_block *self,
 	ld = container_of(self, struct lcd_device, fb_notif);
 	mutex_lock(&ld->ops_lock);
 	if (ld->ops)
-		if (!ld->ops->check_fb || ld->ops->check_fb(evdata->info))
+		if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info))
 			ld->ops->set_power(ld, *(int *)evdata->data);
 	mutex_unlock(&ld->ops_lock);
 	return 0;

drivers/video/bf54x-lq043fb.c

@@ -478,7 +478,7 @@ static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
 	return 0;
 }
 
-static int bfin_lcd_check_fb(struct fb_info *fi)
+static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
 {
 	if (!fi || (fi == &bfin_bf54x_fb))
 		return 1;

drivers/video/bfin-t350mcqb-fb.c

@@ -396,7 +396,7 @@ static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
 	return 0;
 }
 
-static int bfin_lcd_check_fb(struct fb_info *fi)
+static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
 {
 	if (!fi || (fi == &bfin_t350mcqb_fb))
 		return 1;

include/linux/lcd.h

@@ -47,7 +47,7 @@ struct lcd_ops {
         int (*set_contrast)(struct lcd_device *, int contrast);
 	/* Check if given framebuffer device is the one LCD is bound to;
 	   return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */
-	int (*check_fb)(struct fb_info *);
+	int (*check_fb)(struct lcd_device *, struct fb_info *);
 };
 
 struct lcd_device {