drm/i915: enable HDMI on Cougarpoint

Fix transcoder select bit for HDMI on CPT.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 78cb775be4d7..5ff580219834 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -61,8 +61,12 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
         if (hdmi_priv->has_hdmi_sink)
                 sdvox |= SDVO_AUDIO_ENABLE;
 
-        if (intel_crtc->pipe == 1)
-                sdvox |= SDVO_PIPE_B_SELECT;
+        if (intel_crtc->pipe == 1) {
+                if (HAS_PCH_CPT(dev))
+                        sdvox |= PORT_TRANS_B_SEL_CPT;
+                else
+                        sdvox |= SDVO_PIPE_B_SELECT;
+        }
 
         I915_WRITE(hdmi_priv->sdvox_reg, sdvox);
         POSTING_READ(hdmi_priv->sdvox_reg);