[PATCH 01/12] drm/i915/psr: Disable panel replay for now

[Jouni Högander <jouni.hogander@xxxxxxxxx>]

Panel replay is not completely validated yet. Let's disable it for now.

Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>
---
 .../gpu/drm/i915/display/intel_display_types.h    | 15 ++++++++-------
 drivers/gpu/drm/i915/display/intel_psr.c          | 10 +++++++++-
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index b9b9d9f2bc0b..ec36f7c72dcd 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1681,13 +1681,14 @@ struct intel_psr {
 	/* Mutex for PSR state of the transcoder */
 	struct mutex lock;
 
-#define I915_PSR_DEBUG_MODE_MASK	0x0f
-#define I915_PSR_DEBUG_DEFAULT		0x00
-#define I915_PSR_DEBUG_DISABLE		0x01
-#define I915_PSR_DEBUG_ENABLE		0x02
-#define I915_PSR_DEBUG_FORCE_PSR1	0x03
-#define I915_PSR_DEBUG_ENABLE_SEL_FETCH	0x4
-#define I915_PSR_DEBUG_IRQ		0x10
+#define I915_PSR_DEBUG_MODE_MASK		0x0f
+#define I915_PSR_DEBUG_DEFAULT			0x00
+#define I915_PSR_DEBUG_DISABLE			0x01
+#define I915_PSR_DEBUG_ENABLE			0x02
+#define I915_PSR_DEBUG_FORCE_PSR1		0x03
+#define I915_PSR_DEBUG_ENABLE_SEL_FETCH		0x4
+#define I915_PSR_DEBUG_IRQ			0x10
+#define I915_PSR_DEBUG_PANEL_REPLAY_DISABLE	0x20
 
 	u32 debug;
 	bool sink_support;
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 494d08817d71..fc1b068755db 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -214,6 +214,11 @@ static bool psr2_global_enabled(struct intel_dp *intel_dp)
 	}
 }
 
+static bool panel_replay_global_enabled(struct intel_dp *intel_dp)
+{
+	return !(intel_dp->psr.debug & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE);
+}
+
 static u32 psr_irq_psr_error_bit_get(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -1366,7 +1371,7 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 	}
 
 	if (CAN_PANEL_REPLAY(intel_dp))
-		crtc_state->has_panel_replay = true;
+		crtc_state->has_panel_replay = panel_replay_global_enabled(intel_dp);
 	else
 		crtc_state->has_psr = _psr_compute_config(intel_dp, crtc_state);
 
@@ -2780,6 +2785,9 @@ void intel_psr_init(struct intel_dp *intel_dp)
 	else
 		intel_dp->psr.source_support = true;
 
+	/* Disable panel replay for now */
+	intel_dp->psr.debug |= I915_PSR_DEBUG_PANEL_REPLAY_DISABLE;
+
 	/* Set link_standby x link_off defaults */
 	if (DISPLAY_VER(dev_priv) < 12)
 		/* For new platforms up to TGL let's respect VBT back again */
-- 
2.34.1