drm/i915: Nuke intel_drrs_init()

intel_drrs_init() is a mostly pointless wrapper around
intel_panel_add_edid_downclock_mode(), get rid of it.

The only really useful thing left in there is the debug
print regarding the DRRS type supported by the connector.
Let's just move that into intel_panel_init().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220331112822.11462-5-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -5075,7 +5075,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 	intel_panel_add_edid_fixed_mode(intel_connector);
 	if (intel_panel_preferred_fixed_mode(intel_connector) &&
 	    intel_edp_has_drrs(intel_dp))
-		intel_drrs_init(intel_connector);
+		intel_panel_add_edid_downclock_mode(intel_connector);
 
 	/* MSO requires information from the EDID */
 	intel_edp_mso_init(intel_dp);

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

@@ -354,27 +354,3 @@ void intel_crtc_drrs_init(struct intel_crtc *crtc)
 	mutex_init(&crtc->drrs.mutex);
 	crtc->drrs.cpu_transcoder = INVALID_TRANSCODER;
 }
-
-/**
- * intel_drrs_init - Init DRRS for eDP connector
- * @connector: eDP connector
- *
- * This function is called only once at driver load to initialize
- * DRRS support for the connector.
- *
- * Returns:
- * Downclock mode if panel supports it, else return NULL.
- * DRRS support is determined by the presence of downclock mode (apart
- * from VBT setting).
- */
-void intel_drrs_init(struct intel_connector *connector)
-{
-	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-
-	intel_panel_add_edid_downclock_mode(connector);
-
-	drm_dbg_kms(&dev_priv->drm,
-		    "[CONNECTOR:%d:%s] DRRS type: %s\n",
-		    connector->base.base.id, connector->base.name,
-		    intel_drrs_type_str(intel_panel_drrs_type(connector)));
-}

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

@@ -27,6 +27,5 @@ void intel_drrs_compute_config(struct intel_connector *connector,
 			       struct intel_crtc_state *pipe_config,
 			       int output_bpp, bool constant_n);
 void intel_crtc_drrs_init(struct intel_crtc *crtc);
-void intel_drrs_init(struct intel_connector *connector);
 
 #endif /* __INTEL_DRRS_H__ */

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

@@ -35,6 +35,7 @@
 #include "intel_connector.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_drrs.h"
 #include "intel_panel.h"
 
 bool intel_panel_use_ssc(struct drm_i915_private *i915)
@@ -634,6 +635,11 @@ int intel_panel_init(struct intel_connector *connector)
 
 	intel_backlight_init_funcs(panel);
 
+	drm_dbg_kms(connector->base.dev,
+		    "[CONNECTOR:%d:%s] DRRS type: %s\n",
+		    connector->base.base.id, connector->base.name,
+		    intel_drrs_type_str(intel_panel_drrs_type(connector)));
+
 	return 0;
 }