drm/i915/hdmi: send AVI info frames on ILK+ as well

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

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index aa0a8e83142e1c8ee5562d0884ad92c8656b30ed..c220255ef1d97b49cb971b3afcfe17a95a717f3c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -112,6 +112,40 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
                   VIDEO_DIP_ENABLE_AVI);
 }
 
+static void intel_ironlake_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
+{
+       struct dip_infoframe avi_if = {
+               .type = DIP_TYPE_AVI,
+               .ver = DIP_VERSION_AVI,
+               .len = DIP_LEN_AVI,
+       };
+       uint32_t *data = (uint32_t *)&avi_if;
+       struct drm_device *dev = encoder->dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
+       struct drm_crtc *crtc = encoder->crtc;
+       struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+       int reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
+       unsigned i;
+
+       if (!intel_hdmi->has_hdmi_sink)
+               return;
+
+       intel_wait_for_vblank(dev, intel_crtc->pipe);
+
+       I915_WRITE(reg, VIDEO_DIP_SELECT_AVI);
+
+       intel_dip_infoframe_csum(&avi_if);
+       for (i = 0; i < sizeof(avi_if); i += 4) {
+               I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
+               data++;
+       }
+
+       I915_WRITE(reg, VIDEO_DIP_ENABLE | VIDEO_DIP_SELECT_AVI |
+                  VIDEO_DIP_FREQ_VSYNC | (DIP_LEN_AVI << 8) |
+                  VIDEO_DIP_ENABLE_AVI);
+}
+
 static void intel_hdmi_mode_set(struct drm_encoder *encoder,
                                struct drm_display_mode *mode,
                                struct drm_display_mode *adjusted_mode)
@@ -149,7 +183,10 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
        I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
        POSTING_READ(intel_hdmi->sdvox_reg);
 
-       intel_hdmi_set_avi_infoframe(encoder);
+       if (HAS_PCH_SPLIT(dev))
+               intel_ironlake_hdmi_set_avi_infoframe(encoder);
+       else
+               intel_hdmi_set_avi_infoframe(encoder);
 }
 
 static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)