diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_vdsc.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_vdsc.c b/drivers/gpu/drm/i915/intel_vdsc.c index 9676945a85bb..0b31eac46988 100644 --- a/drivers/gpu/drm/i915/intel_vdsc.c +++ b/drivers/gpu/drm/i915/intel_vdsc.c @@ -978,6 +978,25 @@ static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder, } } +static void intel_dp_write_dsc_pps_sdp(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + const struct drm_dsc_config *vdsc_cfg = &crtc_state->dp_dsc_cfg; + struct drm_dsc_pps_infoframe dp_dsc_pps_sdp; + + /* Prepare DP SDP PPS header as per DP 1.4 spec, Table 2-123 */ + drm_dsc_dp_pps_header_init(&dp_dsc_pps_sdp); + + /* Fill the PPS payload bytes as per DSC spec 1.2 Table 4-1 */ + drm_dsc_pps_infoframe_pack(&dp_dsc_pps_sdp, vdsc_cfg); + + intel_dig_port->write_infoframe(encoder, crtc_state, + DP_SDP_PPS, &dp_dsc_pps_sdp, + sizeof(dp_dsc_pps_sdp)); +} + void intel_dsc_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { @@ -985,4 +1004,6 @@ void intel_dsc_enable(struct intel_encoder *encoder, return; intel_configure_pps_for_dsc_encoder(encoder, crtc_state); + + intel_dp_write_dsc_pps_sdp(encoder, crtc_state); } |