Our HW doesn't support panel replay without Early Transport on eDP.
Bspec: 68920
Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 16e06312a8be..a96e03cd68ea 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -550,12 +550,19 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp, u8 alpm_caps)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
- if (intel_dp_is_edp(intel_dp) &&
- (!(alpm_caps & DP_ALPM_CAP) ||
- !(alpm_caps & DP_ALPM_AUX_LESS_CAP))) {
- drm_dbg_kms(&i915->drm,
- "Panel doesn't support AUX-less ALPM, eDP Panel Replay not possible\n");
- return;
+ if (intel_dp_is_edp(intel_dp)) {
+ if (!(alpm_caps & DP_ALPM_CAP) ||
+ !(alpm_caps & DP_ALPM_AUX_LESS_CAP)) {
+ drm_dbg_kms(&i915->drm,
+ "Panel doesn't support AUX-less ALPM, eDP Panel Replay not possible\n");
+ return;
+ }
+
+ if (!(intel_dp->pr_dpcd & DP_PANEL_REPLAY_EARLY_TRANSPORT_SUPPORT)) {
+ drm_dbg_kms(&i915->drm,
+ "Panel doesn't support early transport, eDP Panel Replay not possible\n");
+ return;
+ }
}
intel_dp->psr.sink_panel_replay_support = true;
--
2.34.1
