diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 48 |
1 files changed, 36 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 5bd64db9a9b..ed6b1eccb7d 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -648,6 +648,8 @@ static void pch_disable_backlight(struct intel_connector *connector) struct drm_i915_private *dev_priv = dev->dev_private; u32 tmp; + intel_panel_actually_set_backlight(connector, 0); + tmp = I915_READ(BLC_PWM_CPU_CTL2); I915_WRITE(BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE); @@ -655,12 +657,19 @@ static void pch_disable_backlight(struct intel_connector *connector) I915_WRITE(BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE); } +static void i9xx_disable_backlight(struct intel_connector *connector) +{ + intel_panel_actually_set_backlight(connector, 0); +} + static void i965_disable_backlight(struct intel_connector *connector) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 tmp; + intel_panel_actually_set_backlight(connector, 0); + tmp = I915_READ(BLC_PWM_CTL2); I915_WRITE(BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE); } @@ -672,6 +681,8 @@ static void vlv_disable_backlight(struct intel_connector *connector) enum pipe pipe = intel_get_pipe_from_connector(connector); u32 tmp; + intel_panel_actually_set_backlight(connector, 0); + tmp = I915_READ(VLV_BLC_PWM_CTL2(pipe)); I915_WRITE(VLV_BLC_PWM_CTL2(pipe), tmp & ~BLM_PWM_ENABLE); } @@ -701,10 +712,7 @@ void intel_panel_disable_backlight(struct intel_connector *connector) spin_lock_irqsave(&dev_priv->backlight_lock, flags); panel->backlight.enabled = false; - intel_panel_actually_set_backlight(connector, 0); - - if (dev_priv->display.disable_backlight) - dev_priv->display.disable_backlight(connector); + dev_priv->display.disable_backlight(connector); spin_unlock_irqrestore(&dev_priv->backlight_lock, flags); } @@ -713,6 +721,7 @@ static void pch_enable_backlight(struct intel_connector *connector) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_panel *panel = &connector->panel; enum pipe pipe = intel_get_pipe_from_connector(connector); enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, pipe); @@ -747,12 +756,27 @@ static void pch_enable_backlight(struct intel_connector *connector) tmp &= ~BLM_PCH_OVERRIDE_ENABLE; I915_WRITE(BLC_PWM_PCH_CTL1, tmp); } + + /* + * Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1. + * BLC_PWM_CPU_CTL may be cleared to zero automatically when these + * registers are set. + */ + intel_panel_actually_set_backlight(connector, panel->backlight.level); +} + +static void i9xx_enable_backlight(struct intel_connector *connector) +{ + struct intel_panel *panel = &connector->panel; + + intel_panel_actually_set_backlight(connector, panel->backlight.level); } static void i965_enable_backlight(struct intel_connector *connector) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_panel *panel = &connector->panel; enum pipe pipe = intel_get_pipe_from_connector(connector); u32 tmp; @@ -771,12 +795,15 @@ static void i965_enable_backlight(struct intel_connector *connector) I915_WRITE(BLC_PWM_CTL2, tmp); POSTING_READ(BLC_PWM_CTL2); I915_WRITE(BLC_PWM_CTL2, tmp | BLM_PWM_ENABLE); + + intel_panel_actually_set_backlight(connector, panel->backlight.level); } static void vlv_enable_backlight(struct intel_connector *connector) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_panel *panel = &connector->panel; enum pipe pipe = intel_get_pipe_from_connector(connector); u32 tmp; @@ -793,6 +820,8 @@ static void vlv_enable_backlight(struct intel_connector *connector) I915_WRITE(VLV_BLC_PWM_CTL2(pipe), tmp); POSTING_READ(VLV_BLC_PWM_CTL2(pipe)); I915_WRITE(VLV_BLC_PWM_CTL2(pipe), tmp | BLM_PWM_ENABLE); + + intel_panel_actually_set_backlight(connector, panel->backlight.level); } void intel_panel_enable_backlight(struct intel_connector *connector) @@ -817,15 +846,8 @@ void intel_panel_enable_backlight(struct intel_connector *connector) panel->backlight.level; } - if (dev_priv->display.enable_backlight) - dev_priv->display.enable_backlight(connector); - - /* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1. - * BLC_PWM_CPU_CTL may be cleared to zero automatically when these - * registers are set. - */ + dev_priv->display.enable_backlight(connector); panel->backlight.enabled = true; - intel_panel_actually_set_backlight(connector, panel->backlight.level); spin_unlock_irqrestore(&dev_priv->backlight_lock, flags); } @@ -1080,6 +1102,8 @@ void intel_panel_init_backlight_funcs(struct drm_device *dev) dev_priv->display.get_max_backlight = i965_get_max_backlight; } else { dev_priv->display.setup_backlight = i9xx_setup_backlight; + dev_priv->display.enable_backlight = i9xx_enable_backlight; + dev_priv->display.disable_backlight = i9xx_disable_backlight; dev_priv->display.set_backlight = i9xx_set_backlight; dev_priv->display.get_backlight = i9xx_get_backlight; dev_priv->display.get_max_backlight = i9xx_get_max_backlight; |