128b/1232b SST will have mst_master_transcoder set and matching
cpu_transcoder. Ensure disable also for 128b/132b SST.
Co-developed-by: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 37b771f07d59..c74c3ab25589 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -657,6 +657,7 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+ bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
u32 ctl;
if (DISPLAY_VER(dev_priv) >= 11)
@@ -676,7 +677,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
TRANS_DDI_PORT_SYNC_MASTER_SELECT_MASK);
if (DISPLAY_VER(dev_priv) >= 12) {
- if (!intel_dp_mst_is_master_trans(crtc_state)) {
+ if (!intel_dp_mst_is_master_trans(crtc_state) ||
+ (!is_mst && intel_dp_is_uhbr(crtc_state))) {
ctl &= ~(TGL_TRANS_DDI_PORT_MASK |
TRANS_DDI_MODE_SELECT_MASK);
}
--
2.39.5
