diff options
Diffstat (limited to 'sound/pci/hda/cs35l41_hda_i2c.c')
-rw-r--r-- | sound/pci/hda/cs35l41_hda_i2c.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sound/pci/hda/cs35l41_hda_i2c.c b/sound/pci/hda/cs35l41_hda_i2c.c new file mode 100644 index 000000000000..4a9462fb5c14 --- /dev/null +++ b/sound/pci/hda/cs35l41_hda_i2c.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// cs35l41.c -- CS35l41 HDA I2C driver +// +// Copyright 2021 Cirrus Logic, Inc. +// +// Author: Lucas Tanure <tanureal@opensource.cirrus.com> + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/acpi.h> + +#include "cs35l41_hda.h" + +static int cs35l41_hda_i2c_probe(struct i2c_client *clt, const struct i2c_device_id *id) +{ + const char *device_name; + + /* Compare against the device name so it works for I2C, normal ACPI + * and for ACPI by i2c-multi-instantiate matching cases + */ + if (strstr(dev_name(&clt->dev), "CLSA0100")) + device_name = "CLSA0100"; + else if (strstr(dev_name(&clt->dev), "CSC3551")) + device_name = "CSC3551"; + else + return -ENODEV; + + return cs35l41_hda_probe(&clt->dev, device_name, clt->addr, clt->irq, + devm_regmap_init_i2c(clt, &cs35l41_regmap_i2c)); +} + +static int cs35l41_hda_i2c_remove(struct i2c_client *clt) +{ + return cs35l41_hda_remove(&clt->dev); +} + +static const struct i2c_device_id cs35l41_hda_i2c_id[] = { + { "cs35l41-hda", 0 }, + {} +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id cs35l41_acpi_hda_match[] = { + {"CLSA0100", 0 }, + {"CSC3551", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match); +#endif + +static struct i2c_driver cs35l41_i2c_driver = { + .driver = { + .name = "cs35l41-hda", + .acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match), + }, + .id_table = cs35l41_hda_i2c_id, + .probe = cs35l41_hda_i2c_probe, + .remove = cs35l41_hda_i2c_remove, +}; + +module_i2c_driver(cs35l41_i2c_driver); + +MODULE_DESCRIPTION("HDA CS35L41 driver"); +MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>"); +MODULE_LICENSE("GPL"); |