atmel_hlcdc_output.c

/*
 * Copyright (C) 2014 Traphandler
 * Copyright (C) 2014 Free Electrons
 * Copyright (C) 2014 Atmel
 *
 * Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
 * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/of_graph.h>

#include <drm/drmP.h>
#include <drm/drm_of.h>

#include "atmel_hlcdc_dc.h"

/**
 * Atmel HLCDC RGB connector structure
 *
 * This structure stores RGB slave device information.
 *
 * @connector: DRM connector
 * @encoder: DRM encoder
 * @dc: pointer to the atmel_hlcdc_dc structure
 * @panel: panel connected on the RGB output
 */
struct atmel_hlcdc_rgb_output {
	struct drm_connector connector;
	struct drm_encoder encoder;
	struct atmel_hlcdc_dc *dc;
	struct drm_panel *panel;
};

static inline struct atmel_hlcdc_rgb_output *
drm_connector_to_atmel_hlcdc_rgb_output(struct drm_connector *connector)
{
	return container_of(connector, struct atmel_hlcdc_rgb_output,
			    connector);
}

static inline struct atmel_hlcdc_rgb_output *
drm_encoder_to_atmel_hlcdc_rgb_output(struct drm_encoder *encoder)
{
	return container_of(encoder, struct atmel_hlcdc_rgb_output, encoder);
}

static void atmel_hlcdc_rgb_encoder_enable(struct drm_encoder *encoder)
{
	struct atmel_hlcdc_rgb_output *rgb =
			drm_encoder_to_atmel_hlcdc_rgb_output(encoder);

	if (rgb->panel) {
		drm_panel_prepare(rgb->panel);
		drm_panel_enable(rgb->panel);
	}
}

static void atmel_hlcdc_rgb_encoder_disable(struct drm_encoder *encoder)