[PATCH 6/7] drm/i915/psr: Dump out PSR and Panel Replay DPCD registers

["Jouni Högander" <jouni.hogander@intel.com>]

Add dumping out PSR and Panel Replay DPCD registers after reading
them. This helps parsing dmesg logs and tracing possible PSR/Panel Replay
issues.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 0adaba7e8f7a..129ba0da19ee 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -608,6 +608,10 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp, struct intel_conn
 	if (ret < 0)
 		return;
 
+	drm_dbg_kms(display->drm, "Panel Replay DPCD: %*ph\n",
+		    DP_PANEL_REPLAY_CAP_SIZE,
+		    connector->dp.panel_replay_caps.dpcd);
+
 	if (!(connector->dp.panel_replay_caps.dpcd[INTEL_PR_DPCD_INDEX(DP_PANEL_REPLAY_CAP_SUPPORT)] &
 	      DP_PANEL_REPLAY_SUPPORT))
 		return;
@@ -656,6 +660,9 @@ static void _psr_init_dpcd(struct intel_dp *intel_dp, struct intel_connector *co
 	if (ret < 0)
 		return;
 
+	drm_dbg_kms(display->drm, "PSR DPCD: %*ph\n", EDP_PSR_RECEIVER_CAP_SIZE,
+		    connector->dp.psr_caps.dpcd);
+
 	if (!connector->dp.psr_caps.dpcd[INTEL_PSR_DPCD_INDEX(DP_PSR_SUPPORT)])
 		return;
 
-- 
2.43.0