Take into account in Panel Replay compute config that HW will not allow PR
on eDP when HDCP enabled.
v2: add debug message to print out why Panel Replay is not possible
Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 5e5b2564aac7..3eceec72334d 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1499,6 +1499,9 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
const struct drm_connector_state *conn_state)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ struct intel_connector *connector =
+ to_intel_connector(conn_state->connector);
+ struct intel_hdcp *hdcp = &connector->hdcp;
if (!CAN_PANEL_REPLAY(intel_dp))
return false;
@@ -1515,6 +1518,17 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
return false;
}
+ /* HW will not allow Panel Replay on eDP when HDCP enabled */
+ if (conn_state->content_protection ==
+ DRM_MODE_CONTENT_PROTECTION_DESIRED ||
+ (conn_state->content_protection ==
+ DRM_MODE_CONTENT_PROTECTION_ENABLED && hdcp->value ==
+ DRM_MODE_CONTENT_PROTECTION_UNDESIRED)) {
+ drm_dbg_kms(&i915->drm,
+ "Panel Replay is not supported with HDCP\n");
+ return false;
+ }
+
return true;
}
--
2.34.1
