1 files changed, 19 insertions, 83 deletions

diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 2e976ffcde0f..8726c3669713 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1695,9 +1695,6 @@ static int __devinit aty128fb_setup(char *options)
 #ifdef CONFIG_FB_ATY128_BACKLIGHT
 #define MAX_LEVEL 0xFF
 
-static struct backlight_properties aty128_bl_data;
-
-/* Call with fb_info->bl_mutex held */
 static int aty128_bl_get_level_brightness(struct aty128fb_par *par,
                 int level)
 {
@@ -1705,6 +1702,7 @@ static int aty128_bl_get_level_brightness(struct aty128fb_par *par,
         int atylevel;
 
         /* Get and convert the value */
+        /* No locking of bl_curve since we read a single value */
         atylevel = MAX_LEVEL -
                 (info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL);
 
@@ -1724,19 +1722,18 @@ static int aty128_bl_get_level_brightness(struct aty128fb_par *par,
 /* That one prevents proper CRT output with LCD off */
 #undef BACKLIGHT_DAC_OFF
 
-/* Call with fb_info->bl_mutex held */
-static int __aty128_bl_update_status(struct backlight_device *bd)
+static int aty128_bl_update_status(struct backlight_device *bd)
 {
         struct aty128fb_par *par = class_get_devdata(&bd->class_dev);
         unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL);
         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 ||
             !par->lcd_on)
                 level = 0;
         else
-                level = bd->props->brightness;
+                level = bd->props.brightness;
 
         reg |= LVDS_BL_MOD_EN | LVDS_BLON;
         if (level > 0) {
@@ -1778,43 +1775,22 @@ static int __aty128_bl_update_status(struct backlight_device *bd)
         return 0;
 }
 
-static int aty128_bl_update_status(struct backlight_device *bd)
-{
-        struct aty128fb_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 = __aty128_bl_update_status(bd);
-        mutex_unlock(&info->bl_mutex);
-
-        return ret;
-}
-
 static int aty128_bl_get_brightness(struct backlight_device *bd)
 {
-        return bd->props->brightness;
+        return bd->props.brightness;
 }
 
-static struct backlight_properties aty128_bl_data = {
-        .owner          = THIS_MODULE,
+static struct backlight_ops aty128_bl_data = {
         .get_brightness = aty128_bl_get_brightness,
         .update_status  = aty128_bl_update_status,
-        .max_brightness = (FB_BACKLIGHT_LEVELS - 1),
 };
 
 static void aty128_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;
-                __aty128_bl_update_status(info->bl_dev);
-                up(&info->bl_dev->sem);
+                info->bl_dev->props.power = power;
+                backlight_update_status(info->bl_dev);
         }
-
-        mutex_unlock(&info->bl_mutex);
 }
 
 static void aty128_bl_init(struct aty128fb_par *par)
@@ -1841,25 +1817,15 @@ static void aty128_bl_init(struct aty128fb_par *par)
                 goto error;
         }
 
-        mutex_lock(&info->bl_mutex);
         info->bl_dev = bd;
         fb_bl_default_curve(info, 0,
                  63 * FB_BACKLIGHT_MAX / MAX_LEVEL,
                 219 * FB_BACKLIGHT_MAX / MAX_LEVEL);
-        mutex_unlock(&info->bl_mutex);
 
-        down(&bd->sem);
-        bd->props->brightness = aty128_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("aty128: Backlight initialized (%s)\n", name);
 
@@ -1869,31 +1835,10 @@ error:
         return;
 }
 
-static void aty128_bl_exit(struct aty128fb_par *par)
+static void aty128_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);
-                info->bl_dev = NULL;
-
-                printk("aty128: Backlight unloaded\n");
-        }
-        mutex_unlock(&info->bl_mutex);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-        mutex_unlock(&pmac_backlight_mutex);
-#endif
+        backlight_device_unregister(bd);
+        printk("aty128: Backlight unloaded\n");
 }
 #endif /* CONFIG_FB_ATY128_BACKLIGHT */
 
@@ -2180,11 +2125,12 @@ static void __devexit aty128_remove(struct pci_dev *pdev)
 
         par = info->par;
 
+        unregister_framebuffer(info);
+
 #ifdef CONFIG_FB_ATY128_BACKLIGHT
-        aty128_bl_exit(par);
+        aty128_bl_exit(info->bl_dev);
 #endif
 
-        unregister_framebuffer(info);
 #ifdef CONFIG_MTRR
         if (par->mtrr.vram_valid)
                 mtrr_del(par->mtrr.vram, info->fix.smem_start,
@@ -2214,11 +2160,6 @@ static int aty128fb_blank(int blank, struct fb_info *fb)
         if (par->lock_blank || par->asleep)
                 return 0;
 
-#ifdef CONFIG_FB_ATY128_BACKLIGHT
-        if (machine_is(powermac) && blank)
-                aty128_bl_set_power(fb, FB_BLANK_POWERDOWN);
-#endif
-
         if (blank & FB_BLANK_VSYNC_SUSPEND)
                 state |= 2;
         if (blank & FB_BLANK_HSYNC_SUSPEND)
@@ -2233,11 +2174,6 @@ static int aty128fb_blank(int blank, struct fb_info *fb)
                 aty128_set_lcd_enable(par, par->lcd_on && !blank);
         }
 
-#ifdef CONFIG_FB_ATY128_BACKLIGHT
-        if (machine_is(powermac) && !blank)
-                aty128_bl_set_power(fb, FB_BLANK_UNBLANK);
-#endif
-
         return 0;
 }