Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Guenter Roeck |
192 |
42.57% |
1 |
7.14% |
| Hartmut Knaack |
126 |
27.94% |
1 |
7.14% |
| Lars-Peter Clausen |
74 |
16.41% |
5 |
35.71% |
| Nuno Sá |
47 |
10.42% |
2 |
14.29% |
| Jonathan Cameron |
5 |
1.11% |
1 |
7.14% |
| Cosmin Tanislav |
3 |
0.67% |
1 |
7.14% |
| Thomas Gleixner |
2 |
0.44% |
1 |
7.14% |
| Uwe Kleine-König |
1 |
0.22% |
1 |
7.14% |
| Bo Liu |
1 |
0.22% |
1 |
7.14% |
| Total |
451 |
|
14 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ADT7410/ADT7420 digital temperature sensor driver
*
* Copyright 2012-2013 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include "adt7x10.h"
static bool adt7410_regmap_is_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case ADT7X10_TEMPERATURE:
case ADT7X10_STATUS:
return true;
default:
return false;
}
}
static int adt7410_reg_read(void *context, unsigned int reg, unsigned int *val)
{
struct i2c_client *client = context;
int regval;
switch (reg) {
case ADT7X10_TEMPERATURE:
case ADT7X10_T_ALARM_HIGH:
case ADT7X10_T_ALARM_LOW:
case ADT7X10_T_CRIT:
regval = i2c_smbus_read_word_swapped(client, reg);
break;
default:
regval = i2c_smbus_read_byte_data(client, reg);
break;
}
if (regval < 0)
return regval;
*val = regval;
return 0;
}
static int adt7410_reg_write(void *context, unsigned int reg, unsigned int val)
{
struct i2c_client *client = context;
int ret;
switch (reg) {
case ADT7X10_TEMPERATURE:
case ADT7X10_T_ALARM_HIGH:
case ADT7X10_T_ALARM_LOW:
case ADT7X10_T_CRIT:
ret = i2c_smbus_write_word_swapped(client, reg, val);
break;
default:
ret = i2c_smbus_write_byte_data(client, reg, val);
break;
}
return ret;
}
static const struct regmap_config adt7410_regmap_config = {
.reg_bits = 8,
.val_bits = 16,
.max_register = ADT7X10_ID,
.cache_type = REGCACHE_MAPLE,
.volatile_reg = adt7410_regmap_is_volatile,
.reg_read = adt7410_reg_read,
.reg_write = adt7410_reg_write,
};
static int adt7410_i2c_probe(struct i2c_client *client)
{
struct regmap *regmap;
regmap = devm_regmap_init(&client->dev, NULL, client,
&adt7410_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return adt7x10_probe(&client->dev, client->name, client->irq, regmap);
}
static const struct i2c_device_id adt7410_ids[] = {
{ "adt7410" },
{ "adt7420" },
{ "adt7422" },
{}
};
MODULE_DEVICE_TABLE(i2c, adt7410_ids);
static const struct of_device_id adt7410_of_match[] = {
{ .compatible = "adi,adt7410" },
{ .compatible = "adi,adt7420" },
{ .compatible = "adi,adt7422" },
{ }
};
MODULE_DEVICE_TABLE(of, adt7410_of_match);
static struct i2c_driver adt7410_driver = {
.driver = {
.name = "adt7410",
.pm = pm_sleep_ptr(&adt7x10_dev_pm_ops),
.of_match_table = adt7410_of_match,
},
.probe = adt7410_i2c_probe,
.id_table = adt7410_ids,
};
module_i2c_driver(adt7410_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ADT7410/AD7420 driver");
MODULE_LICENSE("GPL");