diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/codecs/cs35l45-i2c.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs35l45-i2c.c b/sound/soc/codecs/cs35l45-i2c.c new file mode 100644 index 0000000000..bc2af1ed0f --- /dev/null +++ b/sound/soc/codecs/cs35l45-i2c.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// cs35l45-i2c.c -- CS35L45 I2C driver +// +// Copyright 2019-2022 Cirrus Logic, Inc. +// +// Author: James Schulman <james.schulman@cirrus.com> + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/regmap.h> + +#include "cs35l45.h" + +static int cs35l45_i2c_probe(struct i2c_client *client) +{ + struct cs35l45_private *cs35l45; + struct device *dev = &client->dev; + int ret; + + cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL); + if (!cs35l45) + return -ENOMEM; + + i2c_set_clientdata(client, cs35l45); + cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap); + if (IS_ERR(cs35l45->regmap)) { + ret = PTR_ERR(cs35l45->regmap); + dev_err(dev, "Failed to allocate register map: %d\n", ret); + return ret; + } + + cs35l45->dev = dev; + cs35l45->irq = client->irq; + cs35l45->bus_type = CONTROL_BUS_I2C; + cs35l45->i2c_addr = client->addr; + + return cs35l45_probe(cs35l45); +} + +static void cs35l45_i2c_remove(struct i2c_client *client) +{ + struct cs35l45_private *cs35l45 = i2c_get_clientdata(client); + + cs35l45_remove(cs35l45); +} + +static const struct of_device_id cs35l45_of_match[] = { + { .compatible = "cirrus,cs35l45" }, + {}, +}; +MODULE_DEVICE_TABLE(of, cs35l45_of_match); + +static const struct i2c_device_id cs35l45_id_i2c[] = { + { "cs35l45", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c); + +static struct i2c_driver cs35l45_i2c_driver = { + .driver = { + .name = "cs35l45", + .of_match_table = cs35l45_of_match, + .pm = pm_ptr(&cs35l45_pm_ops), + }, + .id_table = cs35l45_id_i2c, + .probe = cs35l45_i2c_probe, + .remove = cs35l45_i2c_remove, +}; +module_i2c_driver(cs35l45_i2c_driver); + +MODULE_DESCRIPTION("I2C CS35L45 driver"); +MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(SND_SOC_CS35L45); |