backlight: Clean up pmac_backlight handling

Move the setting/unsetting of pmac_backlight into the
backlight core instead of doing it in each driver.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>

1 files changed, 2 insertions, 18 deletions

diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index ef3e7861c27a..4de8d6252c3c 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1829,13 +1829,6 @@ static void aty128_bl_init(struct aty128fb_par *par)
         bd->props->power = FB_BLANK_UNBLANK;
         backlight_update_status(bd);
 
-#ifdef CONFIG_PMAC_BACKLIGHT
-        mutex_lock(&pmac_backlight_mutex);
-        if (!pmac_backlight)
-                pmac_backlight = bd;
-        mutex_unlock(&pmac_backlight_mutex);
-#endif
-
         printk("aty128: Backlight initialized (%s)\n", name);
 
         return;
@@ -1846,17 +1839,8 @@ error:
 
 static void aty128_bl_exit(struct backlight_device *bd)
 {
-        if (bd) {
-#ifdef CONFIG_PMAC_BACKLIGHT
-                mutex_lock(&pmac_backlight_mutex);
-                if (pmac_backlight == bd)
-                        pmac_backlight = NULL;
-                mutex_unlock(&pmac_backlight_mutex);
-#endif
-                backlight_device_unregister(bd);
-
-                printk("aty128: Backlight unloaded\n");
-        }
+        backlight_device_unregister(bd);
+        printk("aty128: Backlight unloaded\n");
 }
 #endif /* CONFIG_FB_ATY128_BACKLIGHT */