// 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", 0}, {} }; 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_new = 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);