1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // CS35L56 HDA audio driver I2C binding
4 //
5 // Copyright (C) 2023 Cirrus Logic, Inc. and
6 // Cirrus Logic International Semiconductor Ltd.
7
8 #include <linux/i2c.h>
9 #include <linux/module.h>
10 #include <linux/regmap.h>
11
12 #include "cs35l56_hda.h"
13
cs35l56_hda_i2c_probe(struct i2c_client * clt)14 static int cs35l56_hda_i2c_probe(struct i2c_client *clt)
15 {
16 const struct i2c_device_id *id = i2c_client_get_device_id(clt);
17 struct cs35l56_hda *cs35l56;
18 int ret;
19
20 cs35l56 = devm_kzalloc(&clt->dev, sizeof(*cs35l56), GFP_KERNEL);
21 if (!cs35l56)
22 return -ENOMEM;
23
24 cs35l56->base.dev = &clt->dev;
25
26 #ifdef CS35L56_WAKE_HOLD_TIME_US
27 cs35l56->base.can_hibernate = true;
28 #endif
29 cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c);
30 if (IS_ERR(cs35l56->base.regmap)) {
31 ret = PTR_ERR(cs35l56->base.regmap);
32 dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
33 ret);
34 return ret;
35 }
36
37 ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, clt->addr);
38 if (ret)
39 return ret;
40 ret = cs35l56_irq_request(&cs35l56->base, clt->irq);
41 if (ret < 0)
42 cs35l56_hda_remove(cs35l56->base.dev);
43
44 return ret;
45 }
46
cs35l56_hda_i2c_remove(struct i2c_client * clt)47 static void cs35l56_hda_i2c_remove(struct i2c_client *clt)
48 {
49 cs35l56_hda_remove(&clt->dev);
50 }
51
52 static const struct i2c_device_id cs35l56_hda_i2c_id[] = {
53 { "cs35l54-hda", 0x3554 },
54 { "cs35l56-hda", 0x3556 },
55 { "cs35l57-hda", 0x3557 },
56 {}
57 };
58
59 static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
60 { "CSC3554", 0 },
61 { "CSC3556", 0 },
62 { "CSC3557", 0 },
63 {}
64 };
65 MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
66
67 static struct i2c_driver cs35l56_hda_i2c_driver = {
68 .driver = {
69 .name = "cs35l56-hda",
70 .acpi_match_table = cs35l56_acpi_hda_match,
71 .pm = &cs35l56_hda_pm_ops,
72 },
73 .id_table = cs35l56_hda_i2c_id,
74 .probe = cs35l56_hda_i2c_probe,
75 .remove = cs35l56_hda_i2c_remove,
76 };
77 module_i2c_driver(cs35l56_hda_i2c_driver);
78
79 MODULE_DESCRIPTION("HDA CS35L56 I2C driver");
80 MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
81 MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
82 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
83 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
84 MODULE_LICENSE("GPL");
85