diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index a9e0c7bcd31..499d4c0dbee 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -84,7 +84,7 @@ intel_pch_panel_fitting(struct drm_device *dev, if (scaled_width > scaled_height) { /* pillar */ width = scaled_height / mode->vdisplay; if (width & 1) - width++; + width++; x = (adjusted_mode->hdisplay - width + 1) / 2; y = 0; height = adjusted_mode->vdisplay; @@ -206,7 +206,7 @@ u32 intel_panel_get_backlight(struct drm_device *dev) if (IS_PINEVIEW(dev)) val >>= 1; - if (is_backlight_combination_mode(dev)){ + if (is_backlight_combination_mode(dev)) { u8 lbpc; val &= ~1; @@ -226,7 +226,7 @@ static void intel_pch_panel_set_backlight(struct drm_device *dev, u32 level) I915_WRITE(BLC_PWM_CPU_CTL, val | level); } -void intel_panel_set_backlight(struct drm_device *dev, u32 level) +static void intel_panel_actually_set_backlight(struct drm_device *dev, u32 level) { struct drm_i915_private *dev_priv = dev->dev_private; u32 tmp; @@ -236,7 +236,7 @@ void intel_panel_set_backlight(struct drm_device *dev, u32 level) if (HAS_PCH_SPLIT(dev)) return intel_pch_panel_set_backlight(dev, level); - if (is_backlight_combination_mode(dev)){ + if (is_backlight_combination_mode(dev)) { u32 max = intel_panel_get_max_backlight(dev); u8 lbpc; @@ -254,16 +254,21 @@ void intel_panel_set_backlight(struct drm_device *dev, u32 level) I915_WRITE(BLC_PWM_CTL, tmp | level); } -void intel_panel_disable_backlight(struct drm_device *dev) +void intel_panel_set_backlight(struct drm_device *dev, u32 level) { struct drm_i915_private *dev_priv = dev->dev_private; - if (dev_priv->backlight_enabled) { - dev_priv->backlight_level = intel_panel_get_backlight(dev); - dev_priv->backlight_enabled = false; - } + dev_priv->backlight_level = level; + if (dev_priv->backlight_enabled) + intel_panel_actually_set_backlight(dev, level); +} + +void intel_panel_disable_backlight(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; - intel_panel_set_backlight(dev, 0); + dev_priv->backlight_enabled = false; + intel_panel_actually_set_backlight(dev, 0); } void intel_panel_enable_backlight(struct drm_device *dev) @@ -273,8 +278,8 @@ void intel_panel_enable_backlight(struct drm_device *dev) if (dev_priv->backlight_level == 0) dev_priv->backlight_level = intel_panel_get_max_backlight(dev); - intel_panel_set_backlight(dev, dev_priv->backlight_level); dev_priv->backlight_enabled = true; + intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); } static void intel_panel_init_backlight(struct drm_device *dev) |