From: Jouni Högander Date: Wed, 19 Jun 2024 06:21:24 +0000 (+0300) Subject: drm/i915/psr: Check panel Early Transport capability for eDP PR X-Git-Tag: v6.11-rc1~141^2~2^2~2^2~10 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5d9993f88378a68458af101bfda82754d80fb33f;p=thirdparty%2Flinux.git drm/i915/psr: Check panel Early Transport capability for eDP PR Our HW doesn't support panel replay without Early Transport on eDP. Bspec: 68920 Signed-off-by: Jouni Högander Reviewed-by: Animesh Manna Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-5-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 253888c7ea1d3..8e367a4f4da37 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -571,11 +571,18 @@ 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; + if (intel_dp_is_edp(intel_dp)) { + if (!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; + } + + 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;