From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Disabling the video DIP when shutting the port down seems like a good
idea.
Bspec says:
"When disabling both the DIP port and DIP transmission,
first disable the port and then disable DIP."
and
"Restriction : GCP is only supported with HDMI when the bits per color is
not equal to 8. GCP must be enabled prior to enabling TRANS_DDI_FUNC_CTL
for HDMI with bits per color not equal to 8 and disabled after disabling
TRANS_DDI_FUNC_CTL"
So let's do it in the .post_disable() hook.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ddi.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index d838e8d..fdfc314 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2238,6 +2238,13 @@ static void intel_ddi_post_disable(struct intel_encoder *intel_encoder,
if (wait)
intel_wait_ddi_buf_idle(dev_priv, port);
+ if (type == INTEL_OUTPUT_HDMI) {
+ struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
+
+ intel_hdmi->set_infoframes(encoder, false,
+ old_crtc_state, old_conn_state);
+ }
+
if (intel_dp) {
intel_edp_panel_vdd_on(intel_dp);
intel_edp_panel_off(intel_dp);
--
2.7.4
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