linux/drivers/i2c/busses/i2c-designware-slave.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Synopsys DesignWare I2C adapter driver (slave only).
 *
 * Based on the Synopsys DesignWare I2C adapter driver (master).
 *
 * Copyright (C) 2016 Synopsys Inc.
 */
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>

#define DEFAULT_SYMBOL_NAMESPACE …

#include "i2c-designware-core.h"

static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev)
{ … }

/**
 * i2c_dw_init_slave() - Initialize the designware i2c slave hardware
 * @dev: device private data
 *
 * This function configures and enables the I2C in slave mode.
 * This function is called during I2C init function, and in case of timeout at
 * run time.
 */
static int i2c_dw_init_slave(struct dw_i2c_dev *dev)
{ … }

static int i2c_dw_reg_slave(struct i2c_client *slave)
{ … }

static int i2c_dw_unreg_slave(struct i2c_client *slave)
{ … }

static u32 i2c_dw_read_clear_intrbits_slave(struct dw_i2c_dev *dev)
{ … }

/*
 * Interrupt service routine. This gets called whenever an I2C slave interrupt
 * occurs.
 */
static irqreturn_t i2c_dw_isr_slave(int this_irq, void *dev_id)
{ … }

static const struct i2c_algorithm i2c_dw_algo = …;

void i2c_dw_configure_slave(struct dw_i2c_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

int i2c_dw_probe_slave(struct dw_i2c_dev *dev)
{ … }
EXPORT_SYMBOL_GPL(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_IMPORT_NS(…);