103 строки
2.4 KiB
C
103 строки
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// cs35l41-i2c.c -- CS35l41 I2C driver
|
|
//
|
|
// Copyright 2017-2021 Cirrus Logic, Inc.
|
|
//
|
|
// Author: David Rhodes <david.rhodes@cirrus.com>
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "cs35l41.h"
|
|
|
|
static const struct i2c_device_id cs35l41_id_i2c[] = {
|
|
{ "cs35l40", 0 },
|
|
{ "cs35l41", 0 },
|
|
{ "cs35l51", 0 },
|
|
{ "cs35l53", 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;
|
|
|
|
cs35l41 = devm_kzalloc(dev, sizeof(struct cs35l41_private), GFP_KERNEL);
|
|
|
|
if (!cs35l41)
|
|
return -ENOMEM;
|
|
|
|
cs35l41->dev = dev;
|
|
cs35l41->irq = client->irq;
|
|
|
|
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);
|
|
|
|
cs35l41_remove(cs35l41);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id cs35l41_of_match[] = {
|
|
{ .compatible = "cirrus,cs35l40" },
|
|
{ .compatible = "cirrus,cs35l41" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, cs35l41_of_match);
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI
|
|
static const struct acpi_device_id cs35l41_acpi_match[] = {
|
|
{ "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
|
|
#endif
|
|
|
|
static struct i2c_driver cs35l41_i2c_driver = {
|
|
.driver = {
|
|
.name = "cs35l41",
|
|
.pm = &cs35l41_pm_ops,
|
|
.of_match_table = of_match_ptr(cs35l41_of_match),
|
|
.acpi_match_table = ACPI_PTR(cs35l41_acpi_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");
|