1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 //
3 // cs35l45-spi.c -- CS35L45 SPI driver
4 //
5 // Copyright 2019-2022 Cirrus Logic, Inc.
6 //
7 // Author: James Schulman <james.schulman@cirrus.com>
8
9 #include <linux/device.h>
10 #include <linux/module.h>
11 #include <linux/regmap.h>
12 #include <linux/spi/spi.h>
13
14 #include "cs35l45.h"
15
cs35l45_spi_probe(struct spi_device * spi)16 static int cs35l45_spi_probe(struct spi_device *spi)
17 {
18 struct cs35l45_private *cs35l45;
19 struct device *dev = &spi->dev;
20 int ret;
21
22 cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
23 if (cs35l45 == NULL)
24 return -ENOMEM;
25
26 spi_set_drvdata(spi, cs35l45);
27 cs35l45->regmap = devm_regmap_init_spi(spi, &cs35l45_spi_regmap);
28 if (IS_ERR(cs35l45->regmap)) {
29 ret = PTR_ERR(cs35l45->regmap);
30 dev_err(dev, "Failed to allocate register map: %d\n", ret);
31 return ret;
32 }
33
34 cs35l45->dev = dev;
35
36 return cs35l45_probe(cs35l45);
37 }
38
cs35l45_spi_remove(struct spi_device * spi)39 static void cs35l45_spi_remove(struct spi_device *spi)
40 {
41 struct cs35l45_private *cs35l45 = spi_get_drvdata(spi);
42
43 cs35l45_remove(cs35l45);
44 }
45
46 static const struct of_device_id cs35l45_of_match[] = {
47 { .compatible = "cirrus,cs35l45" },
48 {},
49 };
50 MODULE_DEVICE_TABLE(of, cs35l45_of_match);
51
52 static const struct spi_device_id cs35l45_id_spi[] = {
53 { "cs35l45", 0 },
54 {}
55 };
56 MODULE_DEVICE_TABLE(spi, cs35l45_id_spi);
57
58 static struct spi_driver cs35l45_spi_driver = {
59 .driver = {
60 .name = "cs35l45",
61 .of_match_table = cs35l45_of_match,
62 .pm = &cs35l45_pm_ops,
63 },
64 .id_table = cs35l45_id_spi,
65 .probe = cs35l45_spi_probe,
66 .remove = cs35l45_spi_remove,
67 };
68 module_spi_driver(cs35l45_spi_driver);
69
70 MODULE_DESCRIPTION("SPI CS35L45 driver");
71 MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
72 MODULE_LICENSE("Dual BSD/GPL");
73 MODULE_IMPORT_NS(SND_SOC_CS35L45);
74 MODULE_IMPORT_NS(SND_SOC_CS35L45_TABLES);
75