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>
21 #include <linux/mfd/arizona/core.h>
25 static __devinit
int arizona_i2c_probe(struct i2c_client
*i2c
,
26 const struct i2c_device_id
*id
)
28 struct arizona
*arizona
;
29 const struct regmap_config
*regmap_config
;
32 switch (id
->driver_data
) {
34 regmap_config
= &wm5102_i2c_regmap
;
37 dev_err(&i2c
->dev
, "Unknown device type %ld\n",
42 arizona
= devm_kzalloc(&i2c
->dev
, sizeof(*arizona
), GFP_KERNEL
);
46 arizona
->regmap
= devm_regmap_init_i2c(i2c
, regmap_config
);
47 if (IS_ERR(arizona
->regmap
)) {
48 ret
= PTR_ERR(arizona
->regmap
);
49 dev_err(&i2c
->dev
, "Failed to allocate register map: %d\n",
54 arizona
->type
= id
->driver_data
;
55 arizona
->dev
= &i2c
->dev
;
56 arizona
->irq
= i2c
->irq
;
58 return arizona_dev_init(arizona
);
61 static int __devexit
arizona_i2c_remove(struct i2c_client
*i2c
)
63 struct arizona
*arizona
= dev_get_drvdata(&i2c
->dev
);
64 arizona_dev_exit(arizona
);
68 static const struct i2c_device_id arizona_i2c_id
[] = {
72 MODULE_DEVICE_TABLE(i2c
, arizona_i2c_id
);
74 static struct i2c_driver arizona_i2c_driver
= {
78 .pm
= &arizona_pm_ops
,
80 .probe
= arizona_i2c_probe
,
81 .remove
= __devexit_p(arizona_i2c_remove
),
82 .id_table
= arizona_i2c_id
,
85 module_i2c_driver(arizona_i2c_driver
);
87 MODULE_DESCRIPTION("Arizona I2C bus interface");
88 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
89 MODULE_LICENSE("GPL");