drm/i915/psr: Program Panel Replay CONFIG3 using AS SDP transmission time

Panel Replay requires the AS SDP transmission time to be written into
PANEL_REPLAY_CONFIG3. This field was previously not programmed.

Use the AS SDP transmission-time helper to populate CONFIG3.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260527041050.601735-7-ankit.k.nautiyal@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index ebacd3e74ad88019e2fcb7d34d5c2d9400130590..e138982dc91f6dd99f0865a24c1719b45e684e33 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -794,6 +794,7 @@ static void _panel_replay_enable_sink(struct intel_dp *intel_dp,
                                      const struct intel_crtc_state *crtc_state)
 {
        u8 panel_replay_config[2];
+       u8 panel_replay_config_3;
 
        panel_replay_config[0] = DP_PANEL_REPLAY_ENABLE |
                                 DP_PANEL_REPLAY_VSC_SDP_CRC_EN |
@@ -801,7 +802,6 @@ static void _panel_replay_enable_sink(struct intel_dp *intel_dp,
                                 DP_PANEL_REPLAY_RFB_STORAGE_ERROR_EN |
                                 DP_PANEL_REPLAY_ACTIVE_FRAME_CRC_ERROR_EN;
        panel_replay_config[1] = DP_PANEL_REPLAY_CRC_VERIFICATION;
-
        if (crtc_state->has_sel_update)
                panel_replay_config[0] |= DP_PANEL_REPLAY_SU_ENABLE;
 
@@ -814,6 +814,9 @@ static void _panel_replay_enable_sink(struct intel_dp *intel_dp,
 
        drm_dp_dpcd_write(&intel_dp->aux, PANEL_REPLAY_CONFIG,
                          panel_replay_config, sizeof(panel_replay_config));
+
+       panel_replay_config_3 = intel_dp_as_sdp_transmission_time();
+       drm_dp_dpcd_writeb(&intel_dp->aux, PANEL_REPLAY_CONFIG3, panel_replay_config_3);
 }
 
 static void _psr_enable_sink(struct intel_dp *intel_dp,