drm/rcar-du: Use simple encoder

#include <drm/drm_crtc.h>

#include <drm/drm_modeset_helper_vtables.h>

#include <drm/drm_panel.h>

#include <drm/drm_simple_kms_helper.h>

#include "rcar_du_drv.h"

#include "rcar_du_encoder.h"

 * Encoder

 */

static const struct drm_encoder_helper_funcs encoder_helper_funcs = {

};

static const struct drm_encoder_funcs encoder_funcs = {

	.destroy = drm_encoder_cleanup,

};

static unsigned int rcar_du_encoder_count_ports(struct device_node *node)

{

	struct device_node *ports;

		}

	}

	ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,

			       DRM_MODE_ENCODER_NONE, NULL);

	ret = drm_simple_encoder_init(rcdu->ddev, encoder,

				      DRM_MODE_ENCODER_NONE);

	if (ret < 0)

		goto done;

	drm_encoder_helper_add(encoder, &encoder_helper_funcs);

	/*

	 * Attach the bridge to the encoder. The bridge will create the

	 * connector.