diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index dff6f4e495a6..6e0b8ba4d9ab 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3199,7 +3199,9 @@ static void intel_ddi_post_disable_hdmi_or_sst(struct intel_atomic_state *state, { struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_crtc *pipe_crtc; + bool is_hdmi = intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI); int i; for_each_pipe_crtc_modeset_disable(display, pipe_crtc, old_crtc_state, i) { @@ -3211,6 +3213,20 @@ static void intel_ddi_post_disable_hdmi_or_sst(struct intel_atomic_state *state, intel_disable_transcoder(old_crtc_state); + /* 128b/132b SST */ + if (!is_hdmi && intel_dp_is_uhbr(old_crtc_state)) { + /* VCPID 1, start slot 0 for 128b/132b, clear */ + drm_dp_dpcd_write_payload(&intel_dp->aux, 1, 0, 0); + + intel_ddi_clear_act_sent(encoder, old_crtc_state); + + intel_de_rmw(display, TRANS_DDI_FUNC_CTL(display, old_crtc_state->cpu_transcoder), + TRANS_DDI_DP_VC_PAYLOAD_ALLOC, 0); + + intel_ddi_wait_for_act_sent(encoder, old_crtc_state); + drm_dp_dpcd_poll_act_handled(&intel_dp->aux, 0); + } + intel_ddi_disable_transcoder_func(old_crtc_state); for_each_pipe_crtc_modeset_disable(display, pipe_crtc, old_crtc_state, i) { @@ -3493,6 +3509,19 @@ static void intel_ddi_enable(struct intel_atomic_state *state, /* Enable/Disable DP2.0 SDP split config before transcoder */ intel_audio_sdp_split_update(crtc_state); + /* 128b/132b SST */ + if (!is_hdmi && intel_dp_is_uhbr(crtc_state)) { + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + + intel_ddi_clear_act_sent(encoder, crtc_state); + + intel_de_rmw(display, TRANS_DDI_FUNC_CTL(display, cpu_transcoder), 0, + TRANS_DDI_DP_VC_PAYLOAD_ALLOC); + + intel_ddi_wait_for_act_sent(encoder, crtc_state); + drm_dp_dpcd_poll_act_handled(&intel_dp->aux, 0); + } + intel_enable_transcoder(crtc_state); intel_ddi_wait_for_fec_status(encoder, crtc_state, true); |