105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* cs42l42-i2c.c -- CS42L42 ALSA SoC audio driver for I2C
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*
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* Copyright 2016, 2022 Cirrus Logic, Inc.
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*/
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include "cs42l42.h"
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static int cs42l42_i2c_probe(struct i2c_client *i2c_client)
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{
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struct device *dev = &i2c_client->dev;
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struct cs42l42_private *cs42l42;
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struct regmap *regmap;
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int ret;
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cs42l42 = devm_kzalloc(dev, sizeof(*cs42l42), GFP_KERNEL);
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if (!cs42l42)
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return -ENOMEM;
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regmap = devm_regmap_init_i2c(i2c_client, &cs42l42_regmap);
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if (IS_ERR(regmap))
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return dev_err_probe(&i2c_client->dev, PTR_ERR(regmap),
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"regmap_init() failed\n");
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cs42l42->devid = CS42L42_CHIP_ID;
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cs42l42->dev = dev;
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cs42l42->regmap = regmap;
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cs42l42->irq = i2c_client->irq;
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ret = cs42l42_common_probe(cs42l42, &cs42l42_soc_component, &cs42l42_dai);
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if (ret)
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return ret;
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return cs42l42_init(cs42l42);
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}
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static void cs42l42_i2c_remove(struct i2c_client *i2c_client)
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{
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struct cs42l42_private *cs42l42 = dev_get_drvdata(&i2c_client->dev);
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cs42l42_common_remove(cs42l42);
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}
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static int __maybe_unused cs42l42_i2c_resume(struct device *dev)
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{
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int ret;
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ret = cs42l42_resume(dev);
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if (ret)
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return ret;
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cs42l42_resume_restore(dev);
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return 0;
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}
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static const struct dev_pm_ops cs42l42_i2c_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(cs42l42_suspend, cs42l42_i2c_resume)
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};
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static const struct of_device_id __maybe_unused cs42l42_of_match[] = {
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{ .compatible = "cirrus,cs42l42", },
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{}
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};
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MODULE_DEVICE_TABLE(of, cs42l42_of_match);
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static const struct acpi_device_id __maybe_unused cs42l42_acpi_match[] = {
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{"10134242", 0,},
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{}
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};
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MODULE_DEVICE_TABLE(acpi, cs42l42_acpi_match);
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static const struct i2c_device_id cs42l42_id[] = {
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{"cs42l42", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, cs42l42_id);
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static struct i2c_driver cs42l42_i2c_driver = {
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.driver = {
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.name = "cs42l42",
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.pm = &cs42l42_i2c_pm_ops,
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.of_match_table = of_match_ptr(cs42l42_of_match),
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.acpi_match_table = ACPI_PTR(cs42l42_acpi_match),
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},
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.id_table = cs42l42_id,
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.probe_new = cs42l42_i2c_probe,
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.remove = cs42l42_i2c_remove,
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};
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module_i2c_driver(cs42l42_i2c_driver);
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MODULE_DESCRIPTION("ASoC CS42L42 I2C driver");
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MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS(SND_SOC_CS42L42_CORE);
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