drivers/video/tegra/dc/sn65dsi86_dsi2edp.c


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/*
 * sn65dsi86_dsi2edp.c: dsi to edp controller sn65dsi86 driver.
 *
 * Copyright (c) 2013-2017, NVIDIA CORPORATION. All rights reserved.
 *
 * Author:
 *	Bibek Basu <bbasu@nvidia.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * 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.
 *
 */

#include <linux/i2c.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/regmap.h>
#include <linux/swab.h>
#include <linux/module.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>

#include "dc.h"
#include "dc_priv.h"
#include "sn65dsi86_dsi2edp.h"
#include "dsi.h"

static struct tegra_dc_dsi2edp_data *sn65dsi86_dsi2edp;
static struct i2c_client *sn65dsi86_i2c_client;

enum i2c_transfer_type {
	I2C_WRITE,
	I2C_READ,
};

static inline int sn65dsi86_reg_write(struct tegra_dc_dsi2edp_data *dsi2edp,
					unsigned int addr, unsigned int val)
{
	return regmap_write(dsi2edp->regmap, addr, val);
}

static inline void sn65dsi86_reg_read(struct tegra_dc_dsi2edp_data *dsi2edp,
					unsigned int addr, unsigned int *val)
{
	regmap_read(dsi2edp->regmap, addr, val);
}

static const struct regmap_config sn65dsi86_regmap_config = {
	.reg_bits = 8,