From: Jouni Högander <jouni.hogander@intel.com>
Date: Wed, 19 Jun 2024 06:21:25 +0000 (+0300)
Subject: drm/i915/psr: 128b/132b Panel Replay is not supported on eDP
X-Git-Tag: nvme-6.11-2024-08-08~76^2~2^2~2^2~9
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=397b51ef1ab28b1c807c042f455b47c720984473;p=nvme.git

drm/i915/psr: 128b/132b Panel Replay is not supported on eDP

Take into account that 128b/132b Panel Replay is not supported on eDP.

Bspec: 68920

v2:
  - make crtc_state as const
  - add debug message to print out why Panel Replay is not possible

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-6-jouni.hogander@intel.com
---

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 8e367a4f4da3..8f8148afe8e8 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1517,7 +1517,10 @@ static bool _psr_compute_config(struct intel_dp *intel_dp,
 	return true;
 }
 
-static bool _panel_replay_compute_config(struct intel_dp *intel_dp)
+static bool
+_panel_replay_compute_config(struct intel_dp *intel_dp,
+			     const struct intel_crtc_state *crtc_state,
+			     const struct drm_connector_state *conn_state)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 
@@ -1529,6 +1532,18 @@ static bool _panel_replay_compute_config(struct intel_dp *intel_dp)
 		return false;
 	}
 
+	if (!intel_dp_is_edp(intel_dp))
+		return true;
+
+	/* Remaining checks are for eDP only */
+
+	/* 128b/132b Panel Replay is not supported on eDP */
+	if (intel_dp_is_uhbr(crtc_state)) {
+		drm_dbg_kms(&i915->drm,
+			    "Panel Replay is not supported with 128b/132b\n");
+		return false;
+	}
+
 	return true;
 }
 
@@ -1567,7 +1582,9 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		return;
 	}
 
-	crtc_state->has_panel_replay = _panel_replay_compute_config(intel_dp);
+	crtc_state->has_panel_replay = _panel_replay_compute_config(intel_dp,
+								    crtc_state,
+								    conn_state);
 
 	crtc_state->has_psr = crtc_state->has_panel_replay ? true :
 		_psr_compute_config(intel_dp, crtc_state);