Merge tag 'drm-intel-fixes-2022-04-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Unset enable_psr2_sel_fetch if PSR2 detection fails
- Fix to detect when VRR is turned off from panel settings

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YmAKuHwon7hGyIoC@jlahtine-mobl.ger.corp.intel.com

Author: airlied

drivers/gpu/drm/i915/display/intel_dp.c

@@ -4383,13 +4383,20 @@ intel_dp_update_420(struct intel_dp *intel_dp)
 static void
 intel_dp_set_edid(struct intel_dp *intel_dp)
 {
+	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	struct intel_connector *connector = intel_dp->attached_connector;
 	struct edid *edid;
+	bool vrr_capable;
 
 	intel_dp_unset_edid(intel_dp);
 	edid = intel_dp_get_edid(intel_dp);
 	connector->detect_edid = edid;
 
+	vrr_capable = intel_vrr_is_capable(&connector->base);
+	drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] VRR capable: %s\n",
+		    connector->base.base.id, connector->base.name, str_yes_no(vrr_capable));
+	drm_connector_set_vrr_capable_property(&connector->base, vrr_capable);
+
 	intel_dp_update_dfp(intel_dp, edid);
 	intel_dp_update_420(intel_dp);
 
@@ -4422,6 +4429,9 @@ intel_dp_unset_edid(struct intel_dp *intel_dp)
 
 	intel_dp->dfp.ycbcr_444_to_420 = false;
 	connector->base.ycbcr_420_allowed = false;
+
+	drm_connector_set_vrr_capable_property(&connector->base,
+					       false);
 }
 
 static int
@@ -4572,14 +4582,9 @@ static int intel_dp_get_modes(struct drm_connector *connector)
 	int num_modes = 0;
 
 	edid = intel_connector->detect_edid;
-	if (edid) {
+	if (edid)
 		num_modes = intel_connector_update_modes(connector, edid);
 
-		if (intel_vrr_is_capable(connector))
-			drm_connector_set_vrr_capable_property(connector,
-							       true);
-	}
-
 	/* Also add fixed mode, which may or may not be present in EDID */
 	if (intel_dp_is_edp(intel_attached_dp(intel_connector)) &&
 	    intel_connector->panel.fixed_mode) {

drivers/gpu/drm/i915/display/intel_psr.c

@@ -887,6 +887,20 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 		return false;
 	}
 
+	/* Wa_16011303918:adl-p */
+	if (crtc_state->vrr.enable &&
+	    IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) {
+		drm_dbg_kms(&dev_priv->drm,
+			    "PSR2 not enabled, not compatible with HW stepping + VRR\n");
+		return false;
+	}
+
+	if (!_compute_psr2_sdp_prior_scanline_indication(intel_dp, crtc_state)) {
+		drm_dbg_kms(&dev_priv->drm,
+			    "PSR2 not enabled, PSR2 SDP indication do not fit in hblank\n");
+		return false;
+	}
+
 	if (HAS_PSR2_SEL_FETCH(dev_priv)) {
 		if (!intel_psr2_sel_fetch_config_valid(intel_dp, crtc_state) &&
 		    !HAS_PSR_HW_TRACKING(dev_priv)) {
@@ -900,12 +914,12 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 	if (!crtc_state->enable_psr2_sel_fetch &&
 	    IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0)) {
 		drm_dbg_kms(&dev_priv->drm, "PSR2 HW tracking is not supported this Display stepping\n");
-		return false;
+		goto unsupported;
 	}
 
 	if (!psr2_granularity_check(intel_dp, crtc_state)) {
 		drm_dbg_kms(&dev_priv->drm, "PSR2 not enabled, SU granularity not compatible\n");
-		return false;
+		goto unsupported;
 	}
 
 	if (!crtc_state->enable_psr2_sel_fetch &&
@@ -914,25 +928,15 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 			    "PSR2 not enabled, resolution %dx%d > max supported %dx%d\n",
 			    crtc_hdisplay, crtc_vdisplay,
 			    psr_max_h, psr_max_v);
-		return false;
-	}
-
-	if (!_compute_psr2_sdp_prior_scanline_indication(intel_dp, crtc_state)) {
-		drm_dbg_kms(&dev_priv->drm,
-			    "PSR2 not enabled, PSR2 SDP indication do not fit in hblank\n");
-		return false;
-	}
-
-	/* Wa_16011303918:adl-p */
-	if (crtc_state->vrr.enable &&
-	    IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) {
-		drm_dbg_kms(&dev_priv->drm,
-			    "PSR2 not enabled, not compatible with HW stepping + VRR\n");
-		return false;
+		goto unsupported;
 	}
 
 	tgl_dc3co_exitline_compute_config(intel_dp, crtc_state);
 	return true;
+
+unsupported:
+	crtc_state->enable_psr2_sel_fetch = false;
+	return false;
 }
 
 void intel_psr_compute_config(struct intel_dp *intel_dp,