drm/i915: set/unset the DDI eDP backlight

[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_ddi.c

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 8d49a964cb2c67257475a25b911bbc9135d6f199..efd1a728390ed8a32b7f858acac318d634d63dd1 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1231,12 +1231,23 @@ void intel_enable_ddi(struct intel_encoder *intel_encoder)
                 * enabling the port.
                 */
                I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE);
+       } else if (type == INTEL_OUTPUT_EDP) {
+               struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+               ironlake_edp_backlight_on(intel_dp);
        }
 }
 
-void intel_disable_ddi(struct intel_encoder *encoder)
+void intel_disable_ddi(struct intel_encoder *intel_encoder)
 {
-       /* This will be needed in the future, so leave it here for now */
+       struct drm_encoder *encoder = &intel_encoder->base;
+       int type = intel_encoder->type;
+
+       if (type == INTEL_OUTPUT_EDP) {
+               struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+               ironlake_edp_backlight_off(intel_dp);
+       }
 }
 
 int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)