diff options
Diffstat (limited to 'sound/soc/codecs/wm8731-i2c.c')
-rw-r--r-- | sound/soc/codecs/wm8731-i2c.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8731-i2c.c b/sound/soc/codecs/wm8731-i2c.c new file mode 100644 index 000000000000..fdf03bf91606 --- /dev/null +++ b/sound/soc/codecs/wm8731-i2c.c @@ -0,0 +1,68 @@ +// 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"); |