cs35l56_hda_spi.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2//
 3// CS35L56 HDA audio driver SPI binding
 4//
 5// Copyright (C) 2023 Cirrus Logic, Inc. and
 6//                    Cirrus Logic International Semiconductor Ltd.
 7
 8#include <linux/module.h>
 9#include <linux/regmap.h>
10#include <linux/spi/spi.h>
11
12#include "cs35l56_hda.h"
13
14static int cs35l56_hda_spi_probe(struct spi_device *spi)
15{
16	const struct spi_device_id *id = spi_get_device_id(spi);
17	struct cs35l56_hda *cs35l56;
18	int ret;
19
20	cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL);
21	if (!cs35l56)
22		return -ENOMEM;
23
24	cs35l56->base.dev = &spi->dev;
25	ret = cs35l56_init_config_for_spi(&cs35l56->base, spi);
26	if (ret)
27		return ret;
28
29#ifdef CS35L56_WAKE_HOLD_TIME_US
30	cs35l56->base.can_hibernate = true;
31#endif
32
33	cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
34	if (IS_ERR(cs35l56->base.regmap)) {
35		ret = PTR_ERR(cs35l56->base.regmap);
36		dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
37			ret);
38		return ret;
39	}
40
41	ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0));
42	if (ret)
43		return ret;
44	ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
45	if (ret < 0)
46		cs35l56_hda_remove(cs35l56->base.dev);
47
48	return ret;
49}
50
51static void cs35l56_hda_spi_remove(struct spi_device *spi)
52{
53	cs35l56_hda_remove(&spi->dev);
54}
55
56static const struct spi_device_id cs35l56_hda_spi_id[] = {
57	{ "cs35l54-hda", 0x3554 },
58	{ "cs35l56-hda", 0x3556 },
59	{ "cs35l57-hda", 0x3557 },
60	{}
61};
62
63static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
64	{ "CSC3554", 0 },
65	{ "CSC3556", 0 },
66	{ "CSC3557", 0 },
67	{}
68};
69MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
70
71static struct spi_driver cs35l56_hda_spi_driver = {
72	.driver = {
73		.name		  = "cs35l56-hda",
74		.acpi_match_table = cs35l56_acpi_hda_match,
75		.pm		  = &cs35l56_hda_pm_ops,
76	},
77	.id_table	= cs35l56_hda_spi_id,
78	.probe		= cs35l56_hda_spi_probe,
79	.remove		= cs35l56_hda_spi_remove,
80};
81module_spi_driver(cs35l56_hda_spi_driver);
82
83MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
84MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L56");
85MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED");
86MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
87MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
88MODULE_LICENSE("GPL");