drm/i915: Nuke dev_priv->drrs.type

When we found a downclock mode dev_priv->drrs.type is just a
straight copy of dev_priv->vbt.drrs_type. And in case we
couldn't find a downclock mode can_enable_drrs() won't let
us enable DRRS anyway so the minor distinction between the
two is irrelevant. So let's just nuke dev_priv->drrs.type
and consult the VBT version directly.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220311172428.14685-6-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -1156,7 +1156,7 @@ static void drrs_status_per_crtc(struct seq_file *m,
 		seq_printf(m, "%s:\n", connector->name);
 
 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP &&
-		    drrs->type == DRRS_TYPE_SEAMLESS)
+		    dev_priv->vbt.drrs_type == DRRS_TYPE_SEAMLESS)
 			supported = true;
 
 		seq_printf(m, "\tDRRS Supported: %s\n", str_yes_no(supported));

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

@@ -65,7 +65,7 @@ static bool can_enable_drrs(struct intel_connector *connector,
 		return false;
 
 	return connector->panel.downclock_mode &&
-		i915->drrs.type == DRRS_TYPE_SEAMLESS;
+		i915->vbt.drrs_type == DRRS_TYPE_SEAMLESS;
 }
 
 void
@@ -154,7 +154,7 @@ static void intel_drrs_set_state(struct drm_i915_private *dev_priv,
 		return;
 	}
 
-	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS) {
+	if (dev_priv->vbt.drrs_type != DRRS_TYPE_SEAMLESS) {
 		drm_dbg_kms(&dev_priv->drm, "Only Seamless DRRS supported.\n");
 		return;
 	}
@@ -269,7 +269,7 @@ intel_drrs_update(struct intel_dp *intel_dp,
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 
-	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS)
+	if (dev_priv->vbt.drrs_type != DRRS_TYPE_SEAMLESS)
 		return;
 
 	mutex_lock(&dev_priv->drrs.mutex);
@@ -325,7 +325,7 @@ static void intel_drrs_frontbuffer_update(struct drm_i915_private *dev_priv,
 	struct drm_crtc *crtc;
 	enum pipe pipe;
 
-	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS)
+	if (dev_priv->vbt.drrs_type != DRRS_TYPE_SEAMLESS)
 		return;
 
 	cancel_delayed_work(&dev_priv->drrs.work);
@@ -460,8 +460,6 @@ intel_drrs_init(struct intel_connector *connector,
 		return NULL;
 	}
 
-	dev_priv->drrs.type = dev_priv->vbt.drrs_type;
-
 	dev_priv->drrs.refresh_rate = DRRS_REFRESH_RATE_HIGH;
 	drm_dbg_kms(&dev_priv->drm,
 		    "[CONNECTOR:%d:%s] seamless DRRS supported\n",

drivers/gpu/drm/i915/i915_drv.h

@@ -213,7 +213,6 @@ struct i915_drrs {
 	struct intel_dp *dp;
 	unsigned busy_frontbuffer_bits;
 	enum drrs_refresh_rate refresh_rate;
-	enum drrs_type type;
 };
 
 #define QUIRK_LVDS_SSC_DISABLE (1<<1)