// SPDX-License-Identifier: GPL-2.0-only/* * Copyright (C) 2015 Texas Instruments * Author: Jyri Sarha <jsarha@ti.com> */ #include <linux/of_graph.h> #include <drm/drm_atomic_helper.h>#include <drm/drm_bridge.h>#include <drm/drm_bridge_connector.h>#include <drm/drm_of.h>#include <drm/drm_simple_kms_helper.h> #include "tilcdc_drv.h"#include "tilcdc_encoder.h" staticint tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge){	struct tilcdc_drm_private *priv = ddev_to_tilcdc_priv(ddev);	struct drm_connector *connector;	int ret; 	priv->encoder->base.possible_crtcs = BIT(0); 	ret = drm_bridge_attach(&priv->encoder->base, bridge, NULL,				DRM_BRIDGE_ATTACH_NO_CONNECTOR);	if (ret)		return ret; 	connector = drm_bridge_connector_init(ddev, &priv->encoder->base);	if (IS_ERR(connector)) {		drm_err(ddev, "bridge_connector create failed\n");		return PTR_ERR(connector);	} 	priv->connector = connector;	return 0;} int tilcdc_encoder_create(struct drm_device *ddev){	struct tilcdc_drm_private *priv = ddev_to_tilcdc_priv(ddev);	struct tilcdc_encoder *encoder;	struct drm_bridge *bridge; 	bridge = devm_drm_of_get_bridge(ddev->dev, ddev->dev->of_node, 0, 0);	if (PTR_ERR(bridge) == -ENODEV)		return 0;	else if (IS_ERR(bridge))		return PTR_ERR(bridge); 	encoder = drmm_simple_encoder_alloc(ddev, struct tilcdc_encoder,					    base, DRM_MODE_ENCODER_NONE);	if (IS_ERR(encoder)) {		drm_err(ddev, "drm_encoder_init() failed %pe\n", encoder);		return PTR_ERR(encoder);	}	priv->encoder = encoder; 	return tilcdc_attach_bridge(ddev, bridge);}