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1// SPDX-License-Identifier: GPL-2.02//3// cs35l45-i2c.c -- CS35L45 I2C driver4//5// Copyright 2019-2022 Cirrus Logic, Inc.6//7// Author: James Schulman <james.schulman@cirrus.com>8 9#include <linux/device.h>10#include <linux/module.h>11#include <linux/i2c.h>12#include <linux/regmap.h>13 14#include "cs35l45.h"15 16static int cs35l45_i2c_probe(struct i2c_client *client)17{18 struct cs35l45_private *cs35l45;19 struct device *dev = &client->dev;20 int ret;21 22 cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);23 if (!cs35l45)24 return -ENOMEM;25 26 i2c_set_clientdata(client, cs35l45);27 cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap);28 if (IS_ERR(cs35l45->regmap)) {29 ret = PTR_ERR(cs35l45->regmap);30 dev_err(dev, "Failed to allocate register map: %d\n", ret);31 return ret;32 }33 34 cs35l45->dev = dev;35 cs35l45->irq = client->irq;36 cs35l45->bus_type = CONTROL_BUS_I2C;37 cs35l45->i2c_addr = client->addr;38 39 return cs35l45_probe(cs35l45);40}41 42static void cs35l45_i2c_remove(struct i2c_client *client)43{44 struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);45 46 cs35l45_remove(cs35l45);47}48 49static const struct of_device_id cs35l45_of_match[] = {50 { .compatible = "cirrus,cs35l45" },51 {},52};53MODULE_DEVICE_TABLE(of, cs35l45_of_match);54 55static const struct i2c_device_id cs35l45_id_i2c[] = {56 { "cs35l45" },57 {}58};59MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);60 61static struct i2c_driver cs35l45_i2c_driver = {62 .driver = {63 .name = "cs35l45",64 .of_match_table = cs35l45_of_match,65 .pm = pm_ptr(&cs35l45_pm_ops),66 },67 .id_table = cs35l45_id_i2c,68 .probe = cs35l45_i2c_probe,69 .remove = cs35l45_i2c_remove,70};71module_i2c_driver(cs35l45_i2c_driver);72 73MODULE_DESCRIPTION("I2C CS35L45 driver");74MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");75MODULE_LICENSE("GPL");76MODULE_IMPORT_NS(SND_SOC_CS35L45);77