linux/sound/soc/codecs/ssm2602-i2c.c
Stefan Kristiansson 555b9ee136 ASoC: ssm2602: add device tree bindings
Allow the ssm2602/ssm2603/ssm2604 codec driver to be
instantiated from the device tree.

Also, add Kconfig prompts to allow manual selection of both the
I2C and SPI configuration versions of the driver.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2014-09-30 13:27:27 +01:00

67 lines
1.4 KiB
C

/*
* SSM2602/SSM2603/SSM2604 I2C audio driver
*
* Copyright 2014 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "ssm2602.h"
/*
* ssm2602 2 wire address is determined by GPIO5
* state during powerup.
* low = 0x1a
* high = 0x1b
*/
static int ssm2602_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
return ssm2602_probe(&client->dev, id->driver_data,
devm_regmap_init_i2c(client, &ssm2602_regmap_config));
}
static int ssm2602_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
return 0;
}
static const struct i2c_device_id ssm2602_i2c_id[] = {
{ "ssm2602", SSM2602 },
{ "ssm2603", SSM2602 },
{ "ssm2604", SSM2604 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
static const struct of_device_id ssm2602_of_match[] = {
{ .compatible = "adi,ssm2602", },
{ .compatible = "adi,ssm2603", },
{ .compatible = "adi,ssm2604", },
{ }
};
MODULE_DEVICE_TABLE(of, ssm2602_of_match);
static struct i2c_driver ssm2602_i2c_driver = {
.driver = {
.name = "ssm2602",
.owner = THIS_MODULE,
.of_match_table = ssm2602_of_match,
},
.probe = ssm2602_i2c_probe,
.remove = ssm2602_i2c_remove,
.id_table = ssm2602_i2c_id,
};
module_i2c_driver(ssm2602_i2c_driver);
MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 I2C driver");
MODULE_AUTHOR("Cliff Cai");
MODULE_LICENSE("GPL");