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1/*2 * Cirrus Logic CS42448/CS42888 Audio CODEC DAI I2C driver3 *4 * Copyright (C) 2014 Freescale Semiconductor, Inc.5 *6 * Author: Nicolin Chen <Guangyu.Chen@freescale.com>7 *8 * This file is licensed under the terms of the GNU General Public License9 * version 2. This program is licensed "as is" without any warranty of any10 * kind, whether express or implied.11 */12 13#include <linux/i2c.h>14#include <linux/module.h>15#include <linux/mod_devicetable.h>16#include <linux/pm_runtime.h>17#include <sound/soc.h>18 19#include "cs42xx8.h"20 21static int cs42xx8_i2c_probe(struct i2c_client *i2c)22{23 int ret;24 struct cs42xx8_driver_data *drvdata;25 26 drvdata = (struct cs42xx8_driver_data *)i2c_get_match_data(i2c);27 if (!drvdata)28 return dev_err_probe(&i2c->dev, -EINVAL,29 "failed to find driver data\n");30 31 ret = cs42xx8_probe(&i2c->dev,32 devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config), drvdata);33 if (ret)34 return ret;35 36 pm_runtime_enable(&i2c->dev);37 pm_request_idle(&i2c->dev);38 39 return 0;40}41 42static void cs42xx8_i2c_remove(struct i2c_client *i2c)43{44 pm_runtime_disable(&i2c->dev);45}46 47static const struct of_device_id cs42xx8_of_match[] = {48 { .compatible = "cirrus,cs42448", .data = &cs42448_data, },49 { .compatible = "cirrus,cs42888", .data = &cs42888_data, },50 { /* sentinel */ }51};52MODULE_DEVICE_TABLE(of, cs42xx8_of_match);53 54static const struct i2c_device_id cs42xx8_i2c_id[] = {55 {"cs42448", (kernel_ulong_t)&cs42448_data},56 {"cs42888", (kernel_ulong_t)&cs42888_data},57 {}58};59MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);60 61static struct i2c_driver cs42xx8_i2c_driver = {62 .driver = {63 .name = "cs42xx8",64 .pm = &cs42xx8_pm,65 .of_match_table = cs42xx8_of_match,66 },67 .probe = cs42xx8_i2c_probe,68 .remove = cs42xx8_i2c_remove,69 .id_table = cs42xx8_i2c_id,70};71 72module_i2c_driver(cs42xx8_i2c_driver);73 74MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver");75MODULE_AUTHOR("Freescale Semiconductor, Inc.");76MODULE_LICENSE("GPL");77