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, 23 deletions

diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c
index 2bebfeeb4f1d..0e2bc519dcab 100644
--- a/drivers/video/nvidia/nv_backlight.c
+++ b/drivers/video/nvidia/nv_backlight.c
@@ -16,11 +16,6 @@
 #include "nv_type.h"
 #include "nv_proto.h"
 
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#include <asm/machdep.h>
-#endif
-
 /* We do not have any information about which values are allowed, thus
  * we used safe values.
  */
@@ -128,13 +123,6 @@ void nvidia_bl_init(struct nvidia_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("nvidia: Backlight initialized (%s)\n", name);
 
         return;
@@ -148,15 +136,6 @@ void nvidia_bl_exit(struct nvidia_par *par)
         struct fb_info *info = pci_get_drvdata(par->pci_dev);
         struct backlight_device *bd = info->bl_dev;
 
-        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("nvidia: Backlight unloaded\n");
-        }
+        backlight_device_unregister(bd);
+        printk("nvidia: Backlight unloaded\n");
 }