linux/drivers/media/pci/mgb4/mgb4_i2c.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2021-2023 Digiteq Automotive
 *     author: Martin Tuma <[email protected]>
 *
 * The i2c module unifies the I2C access to the serializes/deserializes. The I2C
 * chips on the GMSL module use 16b addressing, the FPDL3 chips use standard
 * 8b addressing.
 */

#include "mgb4_i2c.h"

static int read_r16(struct i2c_client *client, u16 reg, u8 *val, int len)
{ … }

static int write_r16(struct i2c_client *client, u16 reg, const u8 *val, int len)
{ … }

int mgb4_i2c_init(struct mgb4_i2c_client *client, struct i2c_adapter *adap,
		  struct i2c_board_info const *info, int addr_size)
{ … }

void mgb4_i2c_free(struct mgb4_i2c_client *client)
{ … }

s32 mgb4_i2c_read_byte(struct mgb4_i2c_client *client, u16 reg)
{ … }

s32 mgb4_i2c_write_byte(struct mgb4_i2c_client *client, u16 reg, u8 val)
{ … }

s32 mgb4_i2c_mask_byte(struct mgb4_i2c_client *client, u16 reg, u8 mask, u8 val)
{ … }

int mgb4_i2c_configure(struct mgb4_i2c_client *client,
		       const struct mgb4_i2c_kv *values, size_t count)
{ … }