1 files changed, 19 insertions, 16 deletions

diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 9764045428ce..b7e7b49d8f62 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -78,21 +78,6 @@ static int cdv_backlight_combination_mode(struct drm_device *dev)
         return REG_READ(BLC_PWM_CTL2) & PWM_LEGACY_MODE;
 }
 
-static int cdv_get_brightness(struct backlight_device *bd)
-{
-        struct drm_device *dev = bl_get_data(bd);
-        u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
-
-        if (cdv_backlight_combination_mode(dev)) {
-                u8 lbpc;
-
-                val &= ~1;
-                pci_read_config_byte(dev->pdev, 0xF4, &lbpc);
-                val *= lbpc;
-        }
-        return val;
-}
-
 static u32 cdv_get_max_backlight(struct drm_device *dev)
 {
         u32 max = REG_READ(BLC_PWM_CTL);
@@ -110,6 +95,22 @@ static u32 cdv_get_max_backlight(struct drm_device *dev)
         return max;
 }
 
+static int cdv_get_brightness(struct backlight_device *bd)
+{
+        struct drm_device *dev = bl_get_data(bd);
+        u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+
+        if (cdv_backlight_combination_mode(dev)) {
+                u8 lbpc;
+
+                val &= ~1;
+                pci_read_config_byte(dev->pdev, 0xF4, &lbpc);
+                val *= lbpc;
+        }
+        return (val * 100)/cdv_get_max_backlight(dev);
+
+}
+
 static int cdv_set_brightness(struct backlight_device *bd)
 {
         struct drm_device *dev = bl_get_data(bd);
@@ -120,6 +121,9 @@ static int cdv_set_brightness(struct backlight_device *bd)
         if (level < 1)
                 level = 1;
 
+        level *= cdv_get_max_backlight(dev);
+        level /= 100;
+
         if (cdv_backlight_combination_mode(dev)) {
                 u32 max = cdv_get_max_backlight(dev);
                 u8 lbpc;
@@ -157,7 +161,6 @@ static int cdv_backlight_init(struct drm_device *dev)
 
         cdv_backlight_device->props.brightness =
                         cdv_get_brightness(cdv_backlight_device);
-        cdv_backlight_device->props.max_brightness = cdv_get_max_backlight(dev);
         backlight_update_status(cdv_backlight_device);
         dev_priv->backlight_device = cdv_backlight_device;
         return 0;