drm/cirrus: Integrate connector into pipeline code

Integrate the connector with the rest of the pipeline setup code.
Move some helpers within the file and adapt naming slightly. No
functional changes.

Done in preparation of converting cirrus to regular atomic helpers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230215161517.5113-7-tzimmermann@suse.de

drivers/gpu/drm/tiny/cirrus.c

@@ -57,7 +57,7 @@
 struct cirrus_device {
 	struct drm_device	       dev;
 	struct drm_simple_display_pipe pipe;
-	struct drm_connector	       conn;
+	struct drm_connector	       connector;
 	const struct drm_format_info   *format;
 	unsigned int		       pitch;
 	void __iomem		       *vram;
@@ -352,41 +352,7 @@ static int cirrus_check_size(int width, int height,
 }
 
 /* ------------------------------------------------------------------ */
-/* cirrus connector						      */
-
-static int cirrus_conn_get_modes(struct drm_connector *conn)
-{
-	int count;
-
-	count = drm_add_modes_noedid(conn,
-				     conn->dev->mode_config.max_width,
-				     conn->dev->mode_config.max_height);
-	drm_set_preferred_mode(conn, 1024, 768);
-	return count;
-}
-
-static const struct drm_connector_helper_funcs cirrus_conn_helper_funcs = {
-	.get_modes = cirrus_conn_get_modes,
-};
-
-static const struct drm_connector_funcs cirrus_conn_funcs = {
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = drm_connector_cleanup,
-	.reset = drm_atomic_helper_connector_reset,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static int cirrus_conn_init(struct cirrus_device *cirrus)
-{
-	drm_connector_helper_add(&cirrus->conn, &cirrus_conn_helper_funcs);
-	return drm_connector_init(&cirrus->dev, &cirrus->conn,
-				  &cirrus_conn_funcs, DRM_MODE_CONNECTOR_VGA);
-
-}
-
-/* ------------------------------------------------------------------ */
-/* cirrus (simple) display pipe					      */
+/* cirrus display pipe						      */
 
 static enum drm_mode_status cirrus_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
 						   const struct drm_display_mode *mode)
@@ -473,15 +439,49 @@ static const uint64_t cirrus_modifiers[] = {
 	DRM_FORMAT_MOD_INVALID
 };
 
+static int cirrus_connector_helper_get_modes(struct drm_connector *connector)
+{
+	int count;
+
+	count = drm_add_modes_noedid(connector,
+				     connector->dev->mode_config.max_width,
+				     connector->dev->mode_config.max_height);
+	drm_set_preferred_mode(connector, 1024, 768);
+	return count;
+}
+
+static const struct drm_connector_helper_funcs cirrus_connector_helper_funcs = {
+	.get_modes = cirrus_connector_helper_get_modes,
+};
+
+static const struct drm_connector_funcs cirrus_connector_funcs = {
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = drm_connector_cleanup,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
 static int cirrus_pipe_init(struct cirrus_device *cirrus)
 {
-	return drm_simple_display_pipe_init(&cirrus->dev,
+	struct drm_device *dev = &cirrus->dev;
+	struct drm_connector *connector;
+	int ret;
+
+	connector = &cirrus->connector;
+	ret = drm_connector_init(&cirrus->dev, connector, &cirrus_connector_funcs,
+				 DRM_MODE_CONNECTOR_VGA);
+	if (ret)
+		return ret;
+	drm_connector_helper_add(connector, &cirrus_connector_helper_funcs);
+
+	return drm_simple_display_pipe_init(dev,
 					    &cirrus->pipe,
 					    &cirrus_pipe_funcs,
 					    cirrus_formats,
 					    ARRAY_SIZE(cirrus_formats),
 					    cirrus_modifiers,
-					    &cirrus->conn);
+					    connector);
 }
 
 /* ------------------------------------------------------------------ */
@@ -584,10 +584,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		return ret;
 
-	ret = cirrus_conn_init(cirrus);
-	if (ret < 0)
-		return ret;
-
 	ret = cirrus_pipe_init(cirrus);
 	if (ret < 0)
 		return ret;