path: root/drivers/media/i2c/et8ek8/et8ek8_driver.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * et8ek8_driver.c
 *
 * Copyright (C) 2008 Nokia Corporation
 *
 * Contact: Sakari Ailus <sakari.ailus@iki.fi>
 *          Tuukka Toivonen <tuukkat76@gmail.com>
 *          Pavel Machek <pavel@ucw.cz>
 *
 * Based on code from Toni Leinonen <toni.leinonen@offcode.fi>.
 *
 * This driver is based on the Micron MT9T012 camera imager driver
 * (C) Texas Instruments.
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/sort.h>
#include <linux/v4l2-mediabus.h>

#include <media/media-entity.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>

#include "et8ek8_reg.h"

#define ET8EK8_NAME		"et8ek8"
#define ET8EK8_PRIV_MEM_SIZE	128
#define ET8EK8_MAX_MSG		8

struct et8ek8_sensor {
	struct v4l2_subdev subdev;
	struct media_pad pad;
	struct v4l2_mbus_framefmt format;
	struct gpio_desc *reset;
	struct regulator *vana;
	struct clk *ext_clk;
	u32 xclk_freq;

	u16