drm/bridge_connector: drop drm_bridge_connector_en/disable_hpd()

Now as all drivers stopped calling drm_bridge_connector_enable_hpd() and
drm_bridge_connector_disable_hpd() it is safe to remove them complelely.
Rename our internal helpers to remove the underscore prefix.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-8-dmitry.baryshkov@linaro.org

drivers/gpu/drm/drm_bridge_connector.c

@@ -128,19 +128,7 @@ static void drm_bridge_connector_hpd_cb(void *cb_data,
 	drm_kms_helper_hotplug_event(dev);
 }
 
-/**
- * drm_bridge_connector_enable_hpd - Enable hot-plug detection for the connector
- * @connector: The DRM bridge connector
- *
- * This function enables hot-plug detection for the given bridge connector.
- * This is typically used by display drivers in their resume handler.
- */
-void drm_bridge_connector_enable_hpd(struct drm_connector *connector)
-{
-}
-EXPORT_SYMBOL_GPL(drm_bridge_connector_enable_hpd);
-
-static void _drm_bridge_connector_enable_hpd(struct drm_connector *connector)
+static void drm_bridge_connector_enable_hpd(struct drm_connector *connector)
 {
 	struct drm_bridge_connector *bridge_connector =
 		to_drm_bridge_connector(connector);
@@ -151,20 +139,7 @@ static void _drm_bridge_connector_enable_hpd(struct drm_connector *connector)
 				      bridge_connector);
 }
 
-/**
- * drm_bridge_connector_disable_hpd - Disable hot-plug detection for the
- * connector
- * @connector: The DRM bridge connector
- *
- * This function disables hot-plug detection for the given bridge connector.
- * This is typically used by display drivers in their suspend handler.
- */
-void drm_bridge_connector_disable_hpd(struct drm_connector *connector)
-{
-}
-EXPORT_SYMBOL_GPL(drm_bridge_connector_disable_hpd);
-
-static void _drm_bridge_connector_disable_hpd(struct drm_connector *connector)
+static void drm_bridge_connector_disable_hpd(struct drm_connector *connector)
 {
 	struct drm_bridge_connector *bridge_connector =
 		to_drm_bridge_connector(connector);
@@ -313,8 +288,8 @@ static int drm_bridge_connector_get_modes(struct drm_connector *connector)
 static const struct drm_connector_helper_funcs drm_bridge_connector_helper_funcs = {
 	.get_modes = drm_bridge_connector_get_modes,
 	/* No need for .mode_valid(), the bridges are checked by the core. */
-	.enable_hpd = _drm_bridge_connector_enable_hpd,
-	.disable_hpd = _drm_bridge_connector_disable_hpd,
+	.enable_hpd = drm_bridge_connector_enable_hpd,
+	.disable_hpd = drm_bridge_connector_disable_hpd,
 };
 
 /* -----------------------------------------------------------------------------

include/drm/drm_bridge_connector.h

@@ -10,8 +10,6 @@ struct drm_connector;
 struct drm_device;
 struct drm_encoder;
 
-void drm_bridge_connector_enable_hpd(struct drm_connector *connector);
-void drm_bridge_connector_disable_hpd(struct drm_connector *connector);
 struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
 						struct drm_encoder *encoder);