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