94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
|
/* I2C access for DA9055 PMICs.
|
||
|
|
*
|
||
|
|
* Copyright(c) 2012 Dialog Semiconductor Ltd.
|
||
|
|
*
|
||
|
|
* Author: David Dajun Chen <dchen@diasemi.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/i2c.h>
|
||
|
|
#include <linux/err.h>
|
||
|
|
|
||
|
|
#include <linux/mfd/da9055/core.h>
|
||
|
|
|
||
|
|
static int __devinit da9055_i2c_probe(struct i2c_client *i2c,
|
||
|
|
const struct i2c_device_id *id)
|
||
|
|
{
|
||
|
|
struct da9055 *da9055;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
da9055 = devm_kzalloc(&i2c->dev, sizeof(struct da9055), GFP_KERNEL);
|
||
|
|
if (!da9055)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
da9055->regmap = devm_regmap_init_i2c(i2c, &da9055_regmap_config);
|
||
|
|
if (IS_ERR(da9055->regmap)) {
|
||
|
|
ret = PTR_ERR(da9055->regmap);
|
||
|
|
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
|
||
|
|
ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
da9055->dev = &i2c->dev;
|
||
|
|
da9055->chip_irq = i2c->irq;
|
||
|
|
|
||
|
|
i2c_set_clientdata(i2c, da9055);
|
||
|
|
|
||
|
|
return da9055_device_init(da9055);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __devexit da9055_i2c_remove(struct i2c_client *i2c)
|
||
|
|
{
|
||
|
|
struct da9055 *da9055 = i2c_get_clientdata(i2c);
|
||
|
|
|
||
|
|
da9055_device_exit(da9055);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct i2c_device_id da9055_i2c_id[] = {
|
||
|
|
{"da9055-pmic", 0},
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct i2c_driver da9055_i2c_driver = {
|
||
|
|
.probe = da9055_i2c_probe,
|
||
|
|
.remove = __devexit_p(da9055_i2c_remove),
|
||
|
|
.id_table = da9055_i2c_id,
|
||
|
|
.driver = {
|
||
|
|
.name = "da9055",
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init da9055_i2c_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = i2c_add_driver(&da9055_i2c_driver);
|
||
|
|
if (ret != 0) {
|
||
|
|
pr_err("DA9055 I2C registration failed %d\n", ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
subsys_initcall(da9055_i2c_init);
|
||
|
|
|
||
|
|
static void __exit da9055_i2c_exit(void)
|
||
|
|
{
|
||
|
|
i2c_del_driver(&da9055_i2c_driver);
|
||
|
|
}
|
||
|
|
module_exit(da9055_i2c_exit);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
|
||
|
|
MODULE_DESCRIPTION("I2C driver for Dialog DA9055 PMIC");
|
||
|
|
MODULE_LICENSE("GPL");
|