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1 | /* |
2 | * Arizona-i2c.c -- Arizona I2C bus interface | |
3 | * | |
4 | * Copyright 2012 Wolfson Microelectronics plc | |
5 | * | |
6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/err.h> | |
14 | #include <linux/i2c.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/pm_runtime.h> | |
17 | #include <linux/regmap.h> | |
18 | #include <linux/regulator/consumer.h> | |
19 | #include <linux/slab.h> | |
3d6d1d1c | 20 | #include <linux/of.h> |
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21 | |
22 | #include <linux/mfd/arizona/core.h> | |
23 | ||
24 | #include "arizona.h" | |
25 | ||
f791be49 | 26 | static int arizona_i2c_probe(struct i2c_client *i2c, |
942786e6 | 27 | const struct i2c_device_id *id) |
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28 | { |
29 | struct arizona *arizona; | |
30 | const struct regmap_config *regmap_config; | |
942786e6 LJ |
31 | unsigned long type; |
32 | int ret; | |
c6f75622 | 33 | |
d781009c MB |
34 | if (i2c->dev.of_node) |
35 | type = arizona_of_get_type(&i2c->dev); | |
36 | else | |
37 | type = id->driver_data; | |
38 | ||
39 | switch (type) { | |
863df8d5 | 40 | #ifdef CONFIG_MFD_WM5102 |
c6f75622 MB |
41 | case WM5102: |
42 | regmap_config = &wm5102_i2c_regmap; | |
43 | break; | |
e102befe MB |
44 | #endif |
45 | #ifdef CONFIG_MFD_WM5110 | |
46 | case WM5110: | |
e5d4ef0d | 47 | case WM8280: |
e102befe MB |
48 | regmap_config = &wm5110_i2c_regmap; |
49 | break; | |
dc7d4863 CK |
50 | #endif |
51 | #ifdef CONFIG_MFD_WM8997 | |
52 | case WM8997: | |
53 | regmap_config = &wm8997_i2c_regmap; | |
54 | break; | |
6887b042 RF |
55 | #endif |
56 | #ifdef CONFIG_MFD_WM8998 | |
57 | case WM8998: | |
58 | case WM1814: | |
59 | regmap_config = &wm8998_i2c_regmap; | |
60 | break; | |
863df8d5 | 61 | #endif |
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62 | default: |
63 | dev_err(&i2c->dev, "Unknown device type %ld\n", | |
64 | id->driver_data); | |
65 | return -EINVAL; | |
66 | } | |
67 | ||
68 | arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL); | |
69 | if (arizona == NULL) | |
70 | return -ENOMEM; | |
71 | ||
72 | arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config); | |
73 | if (IS_ERR(arizona->regmap)) { | |
74 | ret = PTR_ERR(arizona->regmap); | |
75 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", | |
76 | ret); | |
77 | return ret; | |
78 | } | |
79 | ||
80 | arizona->type = id->driver_data; | |
81 | arizona->dev = &i2c->dev; | |
82 | arizona->irq = i2c->irq; | |
83 | ||
84 | return arizona_dev_init(arizona); | |
85 | } | |
86 | ||
4740f73f | 87 | static int arizona_i2c_remove(struct i2c_client *i2c) |
c6f75622 MB |
88 | { |
89 | struct arizona *arizona = dev_get_drvdata(&i2c->dev); | |
90 | arizona_dev_exit(arizona); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | static const struct i2c_device_id arizona_i2c_id[] = { | |
95 | { "wm5102", WM5102 }, | |
e102befe | 96 | { "wm5110", WM5110 }, |
e5d4ef0d | 97 | { "wm8280", WM8280 }, |
dc7d4863 | 98 | { "wm8997", WM8997 }, |
6887b042 RF |
99 | { "wm8998", WM8998 }, |
100 | { "wm1814", WM1814 }, | |
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101 | { } |
102 | }; | |
103 | MODULE_DEVICE_TABLE(i2c, arizona_i2c_id); | |
104 | ||
105 | static struct i2c_driver arizona_i2c_driver = { | |
106 | .driver = { | |
107 | .name = "arizona", | |
c6f75622 | 108 | .pm = &arizona_pm_ops, |
d781009c | 109 | .of_match_table = of_match_ptr(arizona_of_match), |
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110 | }, |
111 | .probe = arizona_i2c_probe, | |
84449216 | 112 | .remove = arizona_i2c_remove, |
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113 | .id_table = arizona_i2c_id, |
114 | }; | |
115 | ||
116 | module_i2c_driver(arizona_i2c_driver); | |
117 | ||
118 | MODULE_DESCRIPTION("Arizona I2C bus interface"); | |
119 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
120 | MODULE_LICENSE("GPL"); |