panel/dsi-cm: Use refcounted allocation in place of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Signed-off-by: Anusha Srivatsa <[e-mail]>
Reviewed-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Maxime Ripard <[e-mail]>

drivers/gpu/drm/panel/panel-dsi-cm.c

···
 
 	dev_dbg(dev, "probe\n");
 
-	ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
-	if (!ddata)
-		return -ENOMEM;
+	ddata = devm_drm_panel_alloc(dev, struct panel_drv_data, panel,
+				     &dsicm_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ddata))
+		return PTR_ERR(ddata);
 
 	mipi_dsi_set_drvdata(dsi, ddata);
 	ddata->dsi = dsi;
···
 	mutex_init(&ddata->lock);
 
 	dsicm_hw_reset(ddata);
-
-	drm_panel_init(&ddata->panel, dev, &dsicm_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 
 	if (ddata->use_dsi_backlight) {
 		struct backlight_properties props = { 0 };