Release 4.7 drivers/mfd/tps6507x.c
/*
* tps6507x.c -- TPS6507x chip family multi-function driver
*
* Copyright (c) 2010 RidgeRun (todd.fischer@ridgerun.com)
*
* Author: Todd Fischer
* todd.fischer@ridgerun.com
*
* Credits:
*
* Using code from wm831x-*.c, wm8400-core, Wolfson Microelectronics PLC.
*
* For licencing details see kernel-base/COPYING
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps6507x.h>
static const struct mfd_cell tps6507x_devs[] = {
{
.name = "tps6507x-pmic",
},
{
.name = "tps6507x-ts",
},
};
static int tps6507x_i2c_read_device(struct tps6507x_dev *tps6507x, char reg,
int bytes, void *dest)
{
struct i2c_client *i2c = tps6507x->i2c_client;
struct i2c_msg xfer[2];
int ret;
/* Write register */
xfer[0].addr = i2c->addr;
xfer[0].flags = 0;
xfer[0].len = 1;
xfer[0].buf = ®
/* Read data */
xfer[1].addr = i2c->addr;
xfer[1].flags = I2C_M_RD;
xfer[1].len = bytes;
xfer[1].buf = dest;
ret = i2c_transfer(i2c->adapter, xfer, 2);
if (ret == 2)
ret = 0;
else if (ret >= 0)
ret = -EIO;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 157 | 100.00% | 1 | 100.00% |
| Total | 157 | 100.00% | 1 | 100.00% |
static int tps6507x_i2c_write_device(struct tps6507x_dev *tps6507x, char reg,
int bytes, void *src)
{
struct i2c_client *i2c = tps6507x->i2c_client;
/* we add 1 byte for device register */
u8 msg[TPS6507X_MAX_REGISTER + 1];
int ret;
if (bytes > TPS6507X_MAX_REGISTER)
return -EINVAL;
msg[0] = reg;
memcpy(&msg[1], src, bytes);
ret = i2c_master_send(i2c, msg, bytes + 1);
if (ret < 0)
return ret;
if (ret != bytes + 1)
return -EIO;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 109 | 100.00% | 1 | 100.00% |
| Total | 109 | 100.00% | 1 | 100.00% |
static int tps6507x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct tps6507x_dev *tps6507x;
tps6507x = devm_kzalloc(&i2c->dev, sizeof(struct tps6507x_dev),
GFP_KERNEL);
if (tps6507x == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, tps6507x);
tps6507x->dev = &i2c->dev;
tps6507x->i2c_client = i2c;
tps6507x->read_dev = tps6507x_i2c_read_device;
tps6507x->write_dev = tps6507x_i2c_write_device;
return devm_mfd_add_devices(tps6507x->dev, -1, tps6507x_devs,
ARRAY_SIZE(tps6507x_devs), NULL, 0, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 98 | 90.74% | 1 | 25.00% |
| axel lin | axel lin | 7 | 6.48% | 1 | 25.00% |
| mark brown | mark brown | 2 | 1.85% | 1 | 25.00% |
| laxman dewangan | laxman dewangan | 1 | 0.93% | 1 | 25.00% |
| Total | 108 | 100.00% | 4 | 100.00% |
static const struct i2c_device_id tps6507x_i2c_id[] = {
{ "tps6507x", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tps6507x_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id tps6507x_of_match[] = {
{.compatible = "ti,tps6507x", },
{},
};
MODULE_DEVICE_TABLE(of, tps6507x_of_match);
#endif
static struct i2c_driver tps6507x_i2c_driver = {
.driver = {
.name = "tps6507x",
.of_match_table = of_match_ptr(tps6507x_of_match),
},
.probe = tps6507x_i2c_probe,
.id_table = tps6507x_i2c_id,
};
static int __init tps6507x_i2c_init(void)
{
return i2c_add_driver(&tps6507x_i2c_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
/* init early so consumer devices can complete system boot */
subsys_initcall(tps6507x_i2c_init);
static void __exit tps6507x_i2c_exit(void)
{
i2c_del_driver(&tps6507x_i2c_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
module_exit(tps6507x_i2c_exit);
MODULE_DESCRIPTION("TPS6507x chip family multi-function driver");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| todd fischer | todd fischer | 513 | 90.64% | 2 | 22.22% |
| manish vishwanathrao badarkhe* | manish vishwanathrao badarkhe* | 38 | 6.71% | 1 | 11.11% |
| axel lin | axel lin | 7 | 1.24% | 1 | 11.11% |
| sachin kamat | sachin kamat | 3 | 0.53% | 1 | 11.11% |
| mark brown | mark brown | 2 | 0.35% | 1 | 11.11% |
| jingoo han | jingoo han | 1 | 0.18% | 1 | 11.11% |
| geert uytterhoeven | geert uytterhoeven | 1 | 0.18% | 1 | 11.11% |
| laxman dewangan | laxman dewangan | 1 | 0.18% | 1 | 11.11% |
| Total | 566 | 100.00% | 9 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.