2 * Arizona-i2c.c -- Arizona I2C bus interface
4 * Copyright 2012 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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.
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>
22 #include <linux/mfd/arizona/core.h>
26 static int arizona_i2c_probe(struct i2c_client *i2c,
27 const struct i2c_device_id *id)
29 struct arizona *arizona;
30 const struct regmap_config *regmap_config;
35 type = arizona_of_get_type(&i2c->dev);
37 type = id->driver_data;
40 #ifdef CONFIG_MFD_WM5102
42 regmap_config = &wm5102_i2c_regmap;
45 #ifdef CONFIG_MFD_WM5110
47 regmap_config = &wm5110_i2c_regmap;
50 #ifdef CONFIG_MFD_WM8997
52 regmap_config = &wm8997_i2c_regmap;
56 dev_err(&i2c->dev, "Unknown device type %ld\n",
61 arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL);
65 arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config);
66 if (IS_ERR(arizona->regmap)) {
67 ret = PTR_ERR(arizona->regmap);
68 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
73 arizona->type = id->driver_data;
74 arizona->dev = &i2c->dev;
75 arizona->irq = i2c->irq;
77 return arizona_dev_init(arizona);
80 static int arizona_i2c_remove(struct i2c_client *i2c)
82 struct arizona *arizona = dev_get_drvdata(&i2c->dev);
83 arizona_dev_exit(arizona);
87 static const struct i2c_device_id arizona_i2c_id[] = {
93 MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
95 static struct i2c_driver arizona_i2c_driver = {
99 .pm = &arizona_pm_ops,
100 .of_match_table = of_match_ptr(arizona_of_match),
102 .probe = arizona_i2c_probe,
103 .remove = arizona_i2c_remove,
104 .id_table = arizona_i2c_id,
107 module_i2c_driver(arizona_i2c_driver);
109 MODULE_DESCRIPTION("Arizona I2C bus interface");
110 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
111 MODULE_LICENSE("GPL");