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
cs35l56_hda_spi_probe(struct spi_device * spi)14 static 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 cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
33 if (IS_ERR(cs35l56->base.regmap)) {
34 ret = PTR_ERR(cs35l56->base.regmap);
35 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
36 ret);
37 return ret;
38 }
39
40 ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0));
41 if (ret)
42 return ret;
43 ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
44 if (ret < 0)
45 cs35l56_hda_remove(cs35l56->base.dev);
46
47 return ret;
48 }
49
cs35l56_hda_spi_remove(struct spi_device * spi)50 static void cs35l56_hda_spi_remove(struct spi_device *spi)
51 {
52 cs35l56_hda_remove(&spi->dev);
53 }
54
55 static const struct spi_device_id cs35l56_hda_spi_id[] = {
56 { "cs35l54-hda", 0x3554 },
57 { "cs35l56-hda", 0x3556 },
58 { "cs35l57-hda", 0x3557 },
59 {}
60 };
61
62 static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
63 { "CSC3554", 0 },
64 { "CSC3556", 0 },
65 { "CSC3557", 0 },
66 {}
67 };
68 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
69
70 static struct spi_driver cs35l56_hda_spi_driver = {
71 .driver = {
72 .name = "cs35l56-hda",
73 .acpi_match_table = cs35l56_acpi_hda_match,
74 .pm = &cs35l56_hda_pm_ops,
75 },
76 .id_table = cs35l56_hda_spi_id,
77 .probe = cs35l56_hda_spi_probe,
78 .remove = cs35l56_hda_spi_remove,
79 };
80 module_spi_driver(cs35l56_hda_spi_driver);
81
82 MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
83 MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L56");
84 MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED");
85 MODULE_AUTHOR("Richard Fitzgerald <[email protected]>");
86 MODULE_AUTHOR("Simon Trimmer <[email protected]>");
87 MODULE_LICENSE("GPL");
88