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/*
* cs35l41-i2c.c -- CS35l41 I2C driver
*
* Copyright 2017 Cirrus Logic, Inc.
* Copyright (C) 2019 XiaoMi, Inc.
*
* Author: David Rhodes <david.rhodes@cirrus.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.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/gpio/consumer.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/regmap.h>
#include <linux/gpio.h>
#include "wm_adsp.h"
#include "cs35l41.h"
#include <sound/cs35l41.h>
static struct regmap_config cs35l41_regmap_i2c = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.reg_format_endian = REGMAP_ENDIAN_BIG,
.val_format_endian = REGMAP_ENDIAN_BIG,
.max_register = CS35L41_LASTREG,
.reg_defaults = cs35l41_reg,
.num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
.volatile_reg = cs35l41_volatile_reg,
.readable_reg = cs35l41_readable_reg,
.precious_reg = cs35l41_precious_reg,
.cache_type = REGCACHE_RBTREE,
};
static const struct i2c_device_id cs35l41_id_i2c[] = {
{"cs35l40", 0},
{"cs35l41", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cs35l41_id_i2c);
static int cs35l41_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cs35l41_private *cs35l41;
struct device *dev = &client->dev;
struct cs35l41_platform_data *pdata = dev_get_platdata(dev);
const struct regmap_config *regmap_config = &cs35l41_regmap_i2c;
int ret;
dev_info(dev, "cs35l41 i2c probe start\n");
cs35l41 = devm_kzalloc(dev, sizeof(struct cs35l41_private), GFP_KERNEL);
if (cs35l41 == NULL)
return -ENOMEM;
cs35l41->dev = dev;
cs35l41->irq = client->irq;
cs35l41->bus_spi = false;
i2c_set_clientdata(client, cs35l41);
cs35l41->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(cs35l41->regmap)) {
ret = PTR_ERR(cs35l41->regmap);
dev_err(cs35l41->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
return cs35l41_probe(cs35l41, pdata);
}
static int cs35l41_i2c_remove(struct i2c_client *client)
{
struct cs35l41_private *cs35l41 = i2c_get_clientdata(client);
regmap_write(cs35l41->regmap, CS35L41_IRQ1_MASK1, 0xFFFFFFFF);
wm_adsp2_remove(&cs35l41->dsp);
regulator_bulk_disable(cs35l41->num_supplies, cs35l41->supplies);
snd_soc_unregister_codec(cs35l41->dev);
return 0;
}
static const struct of_device_id cs35l41_of_match[] = {
{.compatible = "cirrus,cs35l40"},
{.compatible = "cirrus,cs35l41"},
{},
};
MODULE_DEVICE_TABLE(of, cs35l41_of_match);
static struct i2c_driver cs35l41_i2c_driver = {
.driver = {
.name = "cs35l41",
.of_match_table = cs35l41_of_match,
},
.id_table = cs35l41_id_i2c,
.probe = cs35l41_i2c_probe,
.remove = cs35l41_i2c_remove,
};
module_i2c_driver(cs35l41_i2c_driver);
MODULE_DESCRIPTION("I2C CS35L41 driver");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
MODULE_LICENSE("GPL");
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