162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * wm8731-i2c.c -- WM8731 ALSA SoC Audio driver I2C code 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright 2005 Openedhand Ltd. 662306a36Sopenharmony_ci * Copyright 2006-12 Wolfson Microelectronics, plc 762306a36Sopenharmony_ci * 862306a36Sopenharmony_ci * Author: Richard Purdie <richard@openedhand.com> 962306a36Sopenharmony_ci * 1062306a36Sopenharmony_ci * Based on wm8753.c by Liam Girdwood 1162306a36Sopenharmony_ci */ 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci#include <linux/i2c.h> 1462306a36Sopenharmony_ci#include <linux/module.h> 1562306a36Sopenharmony_ci#include <linux/of_device.h> 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci#include "wm8731.h" 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_cistatic const struct of_device_id wm8731_of_match[] = { 2162306a36Sopenharmony_ci { .compatible = "wlf,wm8731", }, 2262306a36Sopenharmony_ci { } 2362306a36Sopenharmony_ci}; 2462306a36Sopenharmony_ciMODULE_DEVICE_TABLE(of, wm8731_of_match); 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_cistatic int wm8731_i2c_probe(struct i2c_client *i2c) 2762306a36Sopenharmony_ci{ 2862306a36Sopenharmony_ci struct wm8731_priv *wm8731; 2962306a36Sopenharmony_ci int ret; 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv), 3262306a36Sopenharmony_ci GFP_KERNEL); 3362306a36Sopenharmony_ci if (wm8731 == NULL) 3462306a36Sopenharmony_ci return -ENOMEM; 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci i2c_set_clientdata(i2c, wm8731); 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap); 3962306a36Sopenharmony_ci if (IS_ERR(wm8731->regmap)) { 4062306a36Sopenharmony_ci ret = PTR_ERR(wm8731->regmap); 4162306a36Sopenharmony_ci dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 4262306a36Sopenharmony_ci ret); 4362306a36Sopenharmony_ci return ret; 4462306a36Sopenharmony_ci } 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci return wm8731_init(&i2c->dev, wm8731); 4762306a36Sopenharmony_ci} 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_cistatic const struct i2c_device_id wm8731_i2c_id[] = { 5062306a36Sopenharmony_ci { "wm8731", 0 }, 5162306a36Sopenharmony_ci { } 5262306a36Sopenharmony_ci}; 5362306a36Sopenharmony_ciMODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_cistatic struct i2c_driver wm8731_i2c_driver = { 5662306a36Sopenharmony_ci .driver = { 5762306a36Sopenharmony_ci .name = "wm8731", 5862306a36Sopenharmony_ci .of_match_table = wm8731_of_match, 5962306a36Sopenharmony_ci }, 6062306a36Sopenharmony_ci .probe = wm8731_i2c_probe, 6162306a36Sopenharmony_ci .id_table = wm8731_i2c_id, 6262306a36Sopenharmony_ci}; 6362306a36Sopenharmony_ci 6462306a36Sopenharmony_cimodule_i2c_driver(wm8731_i2c_driver); 6562306a36Sopenharmony_ci 6662306a36Sopenharmony_ciMODULE_DESCRIPTION("ASoC WM8731 driver - I2C"); 6762306a36Sopenharmony_ciMODULE_AUTHOR("Richard Purdie"); 6862306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 69