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
48 regmap_config = &wm5110_i2c_regmap;
51 #ifdef CONFIG_MFD_WM8997
53 regmap_config = &wm8997_i2c_regmap;
57 dev_err(&i2c->dev, "Unknown device type %ld\n",
62 arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL);
66 arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config);
67 if (IS_ERR(arizona->regmap)) {
68 ret = PTR_ERR(arizona->regmap);
69 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
74 arizona->type = id->driver_data;
75 arizona->dev = &i2c->dev;
76 arizona->irq = i2c->irq;
78 return arizona_dev_init(arizona);
81 static int arizona_i2c_remove(struct i2c_client *i2c)
83 struct arizona *arizona = dev_get_drvdata(&i2c->dev);
84 arizona_dev_exit(arizona);
88 static const struct i2c_device_id arizona_i2c_id[] = {
95 MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
97 static struct i2c_driver arizona_i2c_driver = {
100 .owner = THIS_MODULE,
101 .pm = &arizona_pm_ops,
102 .of_match_table = of_match_ptr(arizona_of_match),
104 .probe = arizona_i2c_probe,
105 .remove = arizona_i2c_remove,
106 .id_table = arizona_i2c_id,
109 module_i2c_driver(arizona_i2c_driver);
111 MODULE_DESCRIPTION("Arizona I2C bus interface");
112 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
113 MODULE_LICENSE("GPL");