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
cs35l41_hda_spi_probe(struct spi_device * spi)15 static 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
cs35l41_hda_spi_remove(struct spi_device * spi)32 static void cs35l41_hda_spi_remove(struct spi_device *spi)
33 {
34 cs35l41_hda_remove(&spi->dev);
35 }
36
37 static const struct spi_device_id cs35l41_hda_spi_id[] = {
38 { "cs35l41-hda", 0 },
39 {}
40 };
41 MODULE_DEVICE_TABLE(spi, cs35l41_hda_spi_id);
42
43 static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
44 { "CSC3551", 0 },
45 {}
46 };
47 MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match);
48
49 static 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 };
59 module_spi_driver(cs35l41_spi_driver);
60
61 MODULE_DESCRIPTION("HDA CS35L41 driver");
62 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L41);
63 MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
64 MODULE_LICENSE("GPL");
65