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
33 cs35l56->base.fw_reg = &cs35l56_fw_reg;
34
35 cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi);
36 if (IS_ERR(cs35l56->base.regmap)) {
37 ret = PTR_ERR(cs35l56->base.regmap);
38 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
39 ret);
40 return ret;
41 }
42
43 ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, spi_get_chipselect(spi, 0));
44 if (ret)
45 return ret;
46 ret = cs35l56_irq_request(&cs35l56->base, spi->irq);
47 if (ret < 0)
48 cs35l56_hda_remove(cs35l56->base.dev);
49
50 return ret;
51 }
52
cs35l56_hda_spi_remove(struct spi_device * spi)53 static void cs35l56_hda_spi_remove(struct spi_device *spi)
54 {
55 cs35l56_hda_remove(&spi->dev);
56 }
57
58 static const struct spi_device_id cs35l56_hda_spi_id[] = {
59 { "cs35l54-hda", 0x3554 },
60 { "cs35l56-hda", 0x3556 },
61 { "cs35l57-hda", 0x3557 },
62 {}
63 };
64
65 static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
66 { "CSC3554", 0 },
67 { "CSC3556", 0 },
68 { "CSC3557", 0 },
69 {}
70 };
71 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
72
73 static struct spi_driver cs35l56_hda_spi_driver = {
74 .driver = {
75 .name = "cs35l56-hda",
76 .acpi_match_table = cs35l56_acpi_hda_match,
77 .pm = &cs35l56_hda_pm_ops,
78 },
79 .id_table = cs35l56_hda_spi_id,
80 .probe = cs35l56_hda_spi_probe,
81 .remove = cs35l56_hda_spi_remove,
82 };
83 module_spi_driver(cs35l56_hda_spi_driver);
84
85 MODULE_DESCRIPTION("HDA CS35L56 SPI driver");
86 MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L56");
87 MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED");
88 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
89 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
90 MODULE_LICENSE("GPL");
91