Our HW doesn't support Panel Replay without AUX_LESS ALPM on eDP. Check panel support for this and prevent eDP panel replay if it doesn't exits.
Bspec: 68920 v2: use intel_alpm_aux_less_wake_supported Signed-off-by: Jouni Högander <[email protected]> --- 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 05aff2adb19e..7fb14d740d31 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -561,6 +561,13 @@ static void _panel_replay_init_dpcd(struct intel_dp *intel_dp) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); + if (intel_dp_is_edp(intel_dp) && + (!intel_alpm_aux_less_wake_supported(intel_dp))) { + drm_dbg_kms(&i915->drm, + "Panel doesn't support AUX-less ALPM, eDP Panel Replay not possible\n"); + return; + } + intel_dp->psr.sink_panel_replay_support = true; if (intel_dp->pr_dpcd & DP_PANEL_REPLAY_SU_SUPPORT) -- 2.34.1
