mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
9f90fd652b
The ltc2947 is a high precision power and energy monitor with an internal sense resistor supporting up to +/- 30A. Three internal no Latency ADCs ensure accurate measurement of voltage and current, while high-bandwidth analog multiplication of voltage and current provides accurate power measurement in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20191021154115.319073-1-nuno.sa@analog.com [groeck: Removed unnecessary checks when reading temperature and energy; PAGE{0,1} -> LTC2947_PAGE_{0,1}] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Analog Devices LTC2947 high precision power and energy monitor over I2C
|
|
*
|
|
* Copyright 2019 Analog Devices Inc.
|
|
*/
|
|
#include <linux/i2c.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#include "ltc2947.h"
|
|
|
|
static const struct regmap_config ltc2947_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
};
|
|
|
|
static int ltc2947_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct regmap *map;
|
|
|
|
map = devm_regmap_init_i2c(i2c, <c2947_regmap_config);
|
|
if (IS_ERR(map))
|
|
return PTR_ERR(map);
|
|
|
|
return ltc2947_core_probe(map, i2c->name);
|
|
}
|
|
|
|
static const struct i2c_device_id ltc2947_id[] = {
|
|
{"ltc2947", 0},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, ltc2947_id);
|
|
|
|
static struct i2c_driver ltc2947_driver = {
|
|
.driver = {
|
|
.name = "ltc2947",
|
|
.of_match_table = ltc2947_of_match,
|
|
.pm = <c2947_pm_ops,
|
|
},
|
|
.probe = ltc2947_probe,
|
|
.id_table = ltc2947_id,
|
|
};
|
|
module_i2c_driver(ltc2947_driver);
|
|
|
|
MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>");
|
|
MODULE_DESCRIPTION("LTC2947 I2C power and energy monitor driver");
|
|
MODULE_LICENSE("GPL");
|