1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // |
3 | // CS35L56 ALSA SoC audio driver I2C binding |
4 | // |
5 | // Copyright (C) 2023 Cirrus Logic, Inc. and |
6 | // Cirrus Logic International Semiconductor Ltd. |
7 | |
8 | #include <linux/acpi.h> |
9 | #include <linux/i2c.h> |
10 | #include <linux/module.h> |
11 | #include <linux/moduleparam.h> |
12 | #include <linux/regmap.h> |
13 | #include <linux/slab.h> |
14 | #include <linux/types.h> |
15 | |
16 | #include "cs35l56.h" |
17 | |
18 | static int cs35l56_i2c_probe(struct i2c_client *client) |
19 | { |
20 | struct cs35l56_private *cs35l56; |
21 | struct device *dev = &client->dev; |
22 | const struct regmap_config *regmap_config = &cs35l56_regmap_i2c; |
23 | int ret; |
24 | |
25 | cs35l56 = devm_kzalloc(dev, size: sizeof(struct cs35l56_private), GFP_KERNEL); |
26 | if (!cs35l56) |
27 | return -ENOMEM; |
28 | |
29 | cs35l56->base.dev = dev; |
30 | cs35l56->base.can_hibernate = true; |
31 | |
32 | i2c_set_clientdata(client, data: cs35l56); |
33 | cs35l56->base.regmap = devm_regmap_init_i2c(client, regmap_config); |
34 | if (IS_ERR(ptr: cs35l56->base.regmap)) { |
35 | ret = PTR_ERR(ptr: cs35l56->base.regmap); |
36 | return dev_err_probe(dev: cs35l56->base.dev, err: ret, fmt: "Failed to allocate register map\n" ); |
37 | } |
38 | |
39 | ret = cs35l56_common_probe(cs35l56); |
40 | if (ret != 0) |
41 | return ret; |
42 | |
43 | ret = cs35l56_init(cs35l56); |
44 | if (ret == 0) |
45 | ret = cs35l56_irq_request(cs35l56_base: &cs35l56->base, irq: client->irq); |
46 | if (ret < 0) |
47 | cs35l56_remove(cs35l56); |
48 | |
49 | return ret; |
50 | } |
51 | |
52 | static void cs35l56_i2c_remove(struct i2c_client *client) |
53 | { |
54 | struct cs35l56_private *cs35l56 = i2c_get_clientdata(client); |
55 | |
56 | cs35l56_remove(cs35l56); |
57 | } |
58 | |
59 | static const struct i2c_device_id cs35l56_id_i2c[] = { |
60 | { "cs35l56" , 0 }, |
61 | {} |
62 | }; |
63 | MODULE_DEVICE_TABLE(i2c, cs35l56_id_i2c); |
64 | |
65 | #ifdef CONFIG_ACPI |
66 | static const struct acpi_device_id cs35l56_asoc_acpi_match[] = { |
67 | { "CSC355C" , 0 }, |
68 | {}, |
69 | }; |
70 | MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match); |
71 | #endif |
72 | |
73 | static struct i2c_driver cs35l56_i2c_driver = { |
74 | .driver = { |
75 | .name = "cs35l56" , |
76 | .pm = pm_ptr(&cs35l56_pm_ops_i2c_spi), |
77 | .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match), |
78 | }, |
79 | .id_table = cs35l56_id_i2c, |
80 | .probe = cs35l56_i2c_probe, |
81 | .remove = cs35l56_i2c_remove, |
82 | }; |
83 | |
84 | module_i2c_driver(cs35l56_i2c_driver); |
85 | |
86 | MODULE_DESCRIPTION("ASoC CS35L56 I2C driver" ); |
87 | MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE); |
88 | MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED); |
89 | MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>" ); |
90 | MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>" ); |
91 | MODULE_LICENSE("GPL" ); |
92 | |