cs35l41_hda_spi.c

 1// SPDX-License-Identifier: GPL-2.0
 2//
 3// CS35l41 HDA SPI driver
 4//
 5// Copyright 2021 Cirrus Logic, Inc.
 6//
 7// Author: Lucas Tanure <tanureal@opensource.cirrus.com>
 8
 9#include <linux/mod_devicetable.h>
10#include <linux/module.h>
11#include <linux/spi/spi.h>
12
13#include "cs35l41_hda.h"
14
15static int cs35l41_hda_spi_probe(struct spi_device *spi)
16{
17	const char *device_name;
18
19	/*
20	 * Compare against the device name so it works for SPI, normal ACPI
21	 * and for ACPI by serial-multi-instantiate matching cases.
22	 */
23	if (strstr(dev_name(&spi->dev), "CSC3551"))
24		device_name = "CSC3551";
25	else
26		return -ENODEV;
27
28	return cs35l41_hda_probe(&spi->dev, device_name, spi_get_chipselect(spi, 0), spi->irq,
29				 devm_regmap_init_spi(spi, &cs35l41_regmap_spi), SPI);
30}
31
32static void cs35l41_hda_spi_remove(struct spi_device *spi)
33{
34	cs35l41_hda_remove(&spi->dev);
35}
36
37static const struct spi_device_id cs35l41_hda_spi_id[] = {
38	{ "cs35l41-hda", 0 },
39	{}
40};
41MODULE_DEVICE_TABLE(spi, cs35l41_hda_spi_id);
42
43static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
44	{ "CSC3551", 0 },
45	{}
46};
47MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match);
48
49static struct spi_driver cs35l41_spi_driver = {
50	.driver = {
51		.name		= "cs35l41-hda",
52		.acpi_match_table = cs35l41_acpi_hda_match,
53		.pm		= &cs35l41_hda_pm_ops,
54	},
55	.id_table	= cs35l41_hda_spi_id,
56	.probe		= cs35l41_hda_spi_probe,
57	.remove		= cs35l41_hda_spi_remove,
58};
59module_spi_driver(cs35l41_spi_driver);
60
61MODULE_DESCRIPTION("HDA CS35L41 driver");
62MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L41");
63MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
64MODULE_LICENSE("GPL");