1 files changed, 17 insertions, 83 deletions

diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 301612cef354..a7e0062233f2 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2114,15 +2114,13 @@ static int atyfb_pci_resume(struct pci_dev *pdev)
 #ifdef CONFIG_FB_ATY_BACKLIGHT
 #define MAX_LEVEL 0xFF
 
-static struct backlight_properties aty_bl_data;
-
-/* Call with fb_info->bl_mutex held */
 static int aty_bl_get_level_brightness(struct atyfb_par *par, int level)
 {
         struct fb_info *info = pci_get_drvdata(par->pdev);
         int atylevel;
 
         /* Get and convert the value */
+        /* No locking of bl_curve since we read a single value */
         atylevel = info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL;
 
         if (atylevel < 0)
@@ -2133,18 +2131,17 @@ static int aty_bl_get_level_brightness(struct atyfb_par *par, int level)
         return atylevel;
 }
 
-/* Call with fb_info->bl_mutex held */
-static int __aty_bl_update_status(struct backlight_device *bd)
+static int aty_bl_update_status(struct backlight_device *bd)
 {
         struct atyfb_par *par = class_get_devdata(&bd->class_dev);
         unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par);
         int level;
 
-        if (bd->props->power != FB_BLANK_UNBLANK ||
-            bd->props->fb_blank != FB_BLANK_UNBLANK)
+        if (bd->props.power != FB_BLANK_UNBLANK ||
+            bd->props.fb_blank != FB_BLANK_UNBLANK)
                 level = 0;
         else
-                level = bd->props->brightness;
+                level = bd->props.brightness;
 
         reg |= (BLMOD_EN | BIASMOD_EN);
         if (level > 0) {
@@ -2159,45 +2156,16 @@ static int __aty_bl_update_status(struct backlight_device *bd)
         return 0;
 }
 
-static int aty_bl_update_status(struct backlight_device *bd)
-{
-        struct atyfb_par *par = class_get_devdata(&bd->class_dev);
-        struct fb_info *info = pci_get_drvdata(par->pdev);
-        int ret;
-
-        mutex_lock(&info->bl_mutex);
-        ret = __aty_bl_update_status(bd);
-        mutex_unlock(&info->bl_mutex);
-
-        return ret;
-}
-
 static int aty_bl_get_brightness(struct backlight_device *bd)
 {
-        return bd->props->brightness;
+        return bd->props.brightness;
 }
 
-static struct backlight_properties aty_bl_data = {
-        .owner    = THIS_MODULE,
+static struct backlight_ops aty_bl_data = {
         .get_brightness = aty_bl_get_brightness,
         .update_status  = aty_bl_update_status,
-        .max_brightness = (FB_BACKLIGHT_LEVELS - 1),
 };
 
-static void aty_bl_set_power(struct fb_info *info, int power)
-{
-        mutex_lock(&info->bl_mutex);
-
-        if (info->bl_dev) {
-                down(&info->bl_dev->sem);
-                info->bl_dev->props->power = power;
-                __aty_bl_update_status(info->bl_dev);
-                up(&info->bl_dev->sem);
-        }
-
-        mutex_unlock(&info->bl_mutex);
-}
-
 static void aty_bl_init(struct atyfb_par *par)
 {
         struct fb_info *info = pci_get_drvdata(par->pdev);
@@ -2218,25 +2186,15 @@ static void aty_bl_init(struct atyfb_par *par)
                 goto error;
         }
 
-        mutex_lock(&info->bl_mutex);
         info->bl_dev = bd;
         fb_bl_default_curve(info, 0,
                 0x3F * FB_BACKLIGHT_MAX / MAX_LEVEL,
                 0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL);
-        mutex_unlock(&info->bl_mutex);
-
-        down(&bd->sem);
-        bd->props->brightness = aty_bl_data.max_brightness;
-        bd->props->power = FB_BLANK_UNBLANK;
-        bd->props->update_status(bd);
-        up(&bd->sem);
 
-#ifdef CONFIG_PMAC_BACKLIGHT
-        mutex_lock(&pmac_backlight_mutex);
-        if (!pmac_backlight)
-                pmac_backlight = bd;
-        mutex_unlock(&pmac_backlight_mutex);
-#endif
+        bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
+        bd->props.brightness = bd->props.max_brightness;
+        bd->props.power = FB_BLANK_UNBLANK;
+        backlight_update_status(bd);
 
         printk("aty: Backlight initialized (%s)\n", name);
 
@@ -2246,30 +2204,10 @@ error:
         return;
 }
 
-static void aty_bl_exit(struct atyfb_par *par)
+static void aty_bl_exit(struct backlight_device *bd)
 {
-        struct fb_info *info = pci_get_drvdata(par->pdev);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-        mutex_lock(&pmac_backlight_mutex);
-#endif
-
-        mutex_lock(&info->bl_mutex);
-        if (info->bl_dev) {
-#ifdef CONFIG_PMAC_BACKLIGHT
-                if (pmac_backlight == info->bl_dev)
-                        pmac_backlight = NULL;
-#endif
-
-                backlight_device_unregister(info->bl_dev);
-
-                printk("aty: Backlight unloaded\n");
-        }
-        mutex_unlock(&info->bl_mutex);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-        mutex_unlock(&pmac_backlight_mutex);
-#endif
+        backlight_device_unregister(bd);
+        printk("aty: Backlight unloaded\n");
 }
 
 #endif /* CONFIG_FB_ATY_BACKLIGHT */
@@ -2814,8 +2752,6 @@ static int atyfb_blank(int blank, struct fb_info *info)
                 return 0;
 
 #ifdef CONFIG_FB_ATY_BACKLIGHT
-        if (machine_is(powermac) && blank > FB_BLANK_NORMAL)
-                aty_bl_set_power(info, FB_BLANK_POWERDOWN);
 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
         if (par->lcd_table && blank > FB_BLANK_NORMAL &&
             (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
@@ -2846,8 +2782,6 @@ static int atyfb_blank(int blank, struct fb_info *info)
         aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par);
 
 #ifdef CONFIG_FB_ATY_BACKLIGHT
-        if (machine_is(powermac) && blank <= FB_BLANK_NORMAL)
-                aty_bl_set_power(info, FB_BLANK_UNBLANK);
 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
         if (par->lcd_table && blank <= FB_BLANK_NORMAL &&
             (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
@@ -3726,13 +3660,13 @@ static void __devexit atyfb_remove(struct fb_info *info)
         aty_set_crtc(par, &saved_crtc);
         par->pll_ops->set_pll(info, &saved_pll);
 
+        unregister_framebuffer(info);
+
 #ifdef CONFIG_FB_ATY_BACKLIGHT
         if (M64_HAS(MOBIL_BUS))
-                aty_bl_exit(par);
+                aty_bl_exit(info->bl_dev);
 #endif
 
-        unregister_framebuffer(info);
-
 #ifdef CONFIG_MTRR
         if (par->mtrr_reg >= 0) {
             mtrr_del(par->mtrr_reg, 0, 0);