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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * wm8731-i2c.c -- WM8731 ALSA SoC Audio driver I2C code4 *5 * Copyright 2005 Openedhand Ltd.6 * Copyright 2006-12 Wolfson Microelectronics, plc7 *8 * Author: Richard Purdie <richard@openedhand.com>9 *10 * Based on wm8753.c by Liam Girdwood11 */12 13#include <linux/i2c.h>14#include <linux/mod_devicetable.h>15#include <linux/module.h>16 17#include "wm8731.h"18 19 20static const struct of_device_id wm8731_of_match[] = {21 { .compatible = "wlf,wm8731", },22 { }23};24MODULE_DEVICE_TABLE(of, wm8731_of_match);25 26static int wm8731_i2c_probe(struct i2c_client *i2c)27{28 struct wm8731_priv *wm8731;29 int ret;30 31 wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),32 GFP_KERNEL);33 if (wm8731 == NULL)34 return -ENOMEM;35 36 i2c_set_clientdata(i2c, wm8731);37 38 wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);39 if (IS_ERR(wm8731->regmap)) {40 ret = PTR_ERR(wm8731->regmap);41 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",42 ret);43 return ret;44 }45 46 return wm8731_init(&i2c->dev, wm8731);47}48 49static const struct i2c_device_id wm8731_i2c_id[] = {50 { "wm8731" },51 { }52};53MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);54 55static struct i2c_driver wm8731_i2c_driver = {56 .driver = {57 .name = "wm8731",58 .of_match_table = wm8731_of_match,59 },60 .probe = wm8731_i2c_probe,61 .id_table = wm8731_i2c_id,62};63 64module_i2c_driver(wm8731_i2c_driver);65 66MODULE_DESCRIPTION("ASoC WM8731 driver - I2C");67MODULE_AUTHOR("Richard Purdie");68MODULE_LICENSE("GPL");69