drm/i915: Polish drrs type enum

Make the drrs type enum less convoluted.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220310004802.16310-7-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -257,16 +257,16 @@ parse_panel_options(struct drm_i915_private *i915,
 	 */
 	switch (drrs_mode) {
 	case 0:
-		i915->vbt.drrs_type = STATIC_DRRS_SUPPORT;
+		i915->vbt.drrs_type = DRRS_TYPE_STATIC;
 		drm_dbg_kms(&i915->drm, "DRRS supported mode is static\n");
 		break;
 	case 2:
-		i915->vbt.drrs_type = SEAMLESS_DRRS_SUPPORT;
+		i915->vbt.drrs_type = DRRS_TYPE_SEAMLESS;
 		drm_dbg_kms(&i915->drm,
 			    "DRRS supported mode is seamless\n");
 		break;
 	default:
-		i915->vbt.drrs_type = DRRS_NOT_SUPPORTED;
+		i915->vbt.drrs_type = DRRS_TYPE_NONE;
 		drm_dbg_kms(&i915->drm,
 			    "DRRS not supported (VBT input)\n");
 		break;
@@ -740,7 +740,7 @@ parse_driver_features(struct drm_i915_private *i915,
 		 * driver->drrs_enabled=false
 		 */
 		if (!driver->drrs_enabled)
-			i915->vbt.drrs_type = DRRS_NOT_SUPPORTED;
+			i915->vbt.drrs_type = DRRS_TYPE_NONE;
 
 		i915->vbt.psr.enable = driver->psr_enabled;
 	}
@@ -769,7 +769,7 @@ parse_power_conservation_features(struct drm_i915_private *i915,
 	 * power->drrs & BIT(panel_type)=false
 	 */
 	if (!(power->drrs & BIT(panel_type)))
-		i915->vbt.drrs_type = DRRS_NOT_SUPPORTED;
+		i915->vbt.drrs_type = DRRS_TYPE_NONE;
 
 	if (bdb->version >= 232)
 		i915->vbt.edp.hobl = power->hobl & BIT(panel_type);

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

@@ -1163,7 +1163,7 @@ 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 == SEAMLESS_DRRS_SUPPORT)
+		    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 == SEAMLESS_DRRS_SUPPORT;
+		i915->drrs.type == DRRS_TYPE_SEAMLESS;
 }
 
 void
@@ -155,7 +155,7 @@ static void intel_drrs_set_state(struct drm_i915_private *dev_priv,
 		return;
 	}
 
-	if (dev_priv->drrs.type != SEAMLESS_DRRS_SUPPORT) {
+	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS) {
 		drm_dbg_kms(&dev_priv->drm, "Only Seamless DRRS supported.\n");
 		return;
 	}
@@ -274,7 +274,7 @@ intel_drrs_update(struct intel_dp *intel_dp,
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 
-	if (dev_priv->drrs.type != SEAMLESS_DRRS_SUPPORT)
+	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS)
 		return;
 
 	mutex_lock(&dev_priv->drrs.mutex);
@@ -329,7 +329,7 @@ static void intel_drrs_frontbuffer_update(struct drm_i915_private *dev_priv,
 	struct drm_crtc *crtc;
 	enum pipe pipe;
 
-	if (dev_priv->drrs.type != SEAMLESS_DRRS_SUPPORT)
+	if (dev_priv->drrs.type != DRRS_TYPE_SEAMLESS)
 		return;
 
 	cancel_delayed_work(&dev_priv->drrs.work);
@@ -449,7 +449,7 @@ intel_drrs_init(struct intel_connector *connector,
 		return NULL;
 	}
 
-	if (dev_priv->vbt.drrs_type != SEAMLESS_DRRS_SUPPORT) {
+	if (dev_priv->vbt.drrs_type != DRRS_TYPE_SEAMLESS) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "[CONNECTOR:%d:%s] DRRS not supported according to VBT\n",
 			    connector->base.base.id, connector->base.name);

drivers/gpu/drm/i915/i915_drv.h

@@ -207,10 +207,10 @@ enum drrs_refresh_rate_type {
 	DRRS_MAX_RR, /* RR count */
 };
 
-enum drrs_support_type {
-	DRRS_NOT_SUPPORTED = 0,
-	STATIC_DRRS_SUPPORT = 1,
-	SEAMLESS_DRRS_SUPPORT = 2
+enum drrs_type {
+	DRRS_TYPE_NONE,
+	DRRS_TYPE_STATIC,
+	DRRS_TYPE_SEAMLESS,
 };
 
 struct i915_drrs {
@@ -219,7 +219,7 @@ struct i915_drrs {
 	struct intel_dp *dp;
 	unsigned busy_frontbuffer_bits;
 	enum drrs_refresh_rate_type refresh_rate_type;
-	enum drrs_support_type type;
+	enum drrs_type type;
 };
 
 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
@@ -349,7 +349,7 @@ struct intel_vbt_data {
 	bool override_afc_startup;
 	u8 override_afc_startup_val;
 
-	enum drrs_support_type drrs_type;
+	enum drrs_type drrs_type;
 
 	struct {
 		int rate;