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1// SPDX-License-Identifier: GPL-2.0-only2//3// CS35L56 ALSA SoC audio driver I2C binding4//5// Copyright (C) 2023 Cirrus Logic, Inc. and6// Cirrus Logic International Semiconductor Ltd.7 8#include <linux/acpi.h>9#include <linux/i2c.h>10#include <linux/module.h>11#include <linux/moduleparam.h>12#include <linux/regmap.h>13#include <linux/slab.h>14#include <linux/types.h>15 16#include "cs35l56.h"17 18static int cs35l56_i2c_probe(struct i2c_client *client)19{20 struct cs35l56_private *cs35l56;21 struct device *dev = &client->dev;22 const struct regmap_config *regmap_config = &cs35l56_regmap_i2c;23 int ret;24 25 cs35l56 = devm_kzalloc(dev, sizeof(struct cs35l56_private), GFP_KERNEL);26 if (!cs35l56)27 return -ENOMEM;28 29 cs35l56->base.dev = dev;30 cs35l56->base.can_hibernate = true;31 32 i2c_set_clientdata(client, cs35l56);33 cs35l56->base.regmap = devm_regmap_init_i2c(client, regmap_config);34 if (IS_ERR(cs35l56->base.regmap)) {35 ret = PTR_ERR(cs35l56->base.regmap);36 return dev_err_probe(cs35l56->base.dev, ret, "Failed to allocate register map\n");37 }38 39 ret = cs35l56_common_probe(cs35l56);40 if (ret != 0)41 return ret;42 43 ret = cs35l56_init(cs35l56);44 if (ret == 0)45 ret = cs35l56_irq_request(&cs35l56->base, client->irq);46 if (ret < 0)47 cs35l56_remove(cs35l56);48 49 return ret;50}51 52static void cs35l56_i2c_remove(struct i2c_client *client)53{54 struct cs35l56_private *cs35l56 = i2c_get_clientdata(client);55 56 cs35l56_remove(cs35l56);57}58 59static const struct i2c_device_id cs35l56_id_i2c[] = {60 { "cs35l56" },61 {}62};63MODULE_DEVICE_TABLE(i2c, cs35l56_id_i2c);64 65#ifdef CONFIG_ACPI66static const struct acpi_device_id cs35l56_asoc_acpi_match[] = {67 { "CSC355C", 0 },68 {},69};70MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match);71#endif72 73static struct i2c_driver cs35l56_i2c_driver = {74 .driver = {75 .name = "cs35l56",76 .pm = pm_ptr(&cs35l56_pm_ops_i2c_spi),77 .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match),78 },79 .id_table = cs35l56_id_i2c,80 .probe = cs35l56_i2c_probe,81 .remove = cs35l56_i2c_remove,82};83 84module_i2c_driver(cs35l56_i2c_driver);85 86MODULE_DESCRIPTION("ASoC CS35L56 I2C driver");87MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE);88MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);89MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");90MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");91MODULE_LICENSE("GPL");92