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drm/i915/ddi: disable trancoder port select for 128b/132b SST

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128b/1232b SST will have mst_master_transcoder set and matching
cpu_transcoder. Ensure disable also for 128b/132b SST.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Co-developed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/eaf705b3490d828ba33e85f40a7794d58de7c5ad.1735912293.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2025-01-03 15:52:38 +02:00
parent 40d489fac0
commit 79a6734cd5
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/display/intel_ddi.c
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@ -658,6 +658,7 @@ 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)
@ -677,7 +678,8 @@ 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);
}