69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* wm8731-i2c.c -- WM8731 ALSA SoC Audio driver I2C code
|
|
*
|
|
* Copyright 2005 Openedhand Ltd.
|
|
* Copyright 2006-12 Wolfson Microelectronics, plc
|
|
*
|
|
* Author: Richard Purdie <richard@openedhand.com>
|
|
*
|
|
* Based on wm8753.c by Liam Girdwood
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_device.h>
|
|
|
|
#include "wm8731.h"
|
|
|
|
|
|
static const struct of_device_id wm8731_of_match[] = {
|
|
{ .compatible = "wlf,wm8731", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, wm8731_of_match);
|
|
|
|
static int wm8731_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct wm8731_priv *wm8731;
|
|
int ret;
|
|
|
|
wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
|
|
GFP_KERNEL);
|
|
if (wm8731 == NULL)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, wm8731);
|
|
|
|
wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
|
|
if (IS_ERR(wm8731->regmap)) {
|
|
ret = PTR_ERR(wm8731->regmap);
|
|
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
return wm8731_init(&i2c->dev, wm8731);
|
|
}
|
|
|
|
static const struct i2c_device_id wm8731_i2c_id[] = {
|
|
{ "wm8731", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);
|
|
|
|
static struct i2c_driver wm8731_i2c_driver = {
|
|
.driver = {
|
|
.name = "wm8731",
|
|
.of_match_table = wm8731_of_match,
|
|
},
|
|
.probe_new = wm8731_i2c_probe,
|
|
.id_table = wm8731_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(wm8731_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC WM8731 driver - I2C");
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
MODULE_LICENSE("GPL");
|