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// SPDX-License-Identifier: GPL-2.0
/*
* Support for PNI RM3100 3-axis geomagnetic sensor on a i2c bus.
*
* Copyright (C) 2018 Song Qiang <songqiang1304521@gmail.com>
*
* i2c slave address: 0x20 + SA1 << 1 + SA0.
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include "rm3100.h"
static const struct regmap_config rm3100_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.rd_table = &rm3100_readable_table,
.wr_table = &rm3100_writable_table,
.volatile_table = &rm3100_volatile_table,
.cache_type = REGCACHE_RBTREE,
};
static int rm3100_probe(struct i2c_client *client)
{
struct regmap *regmap;
regmap = devm_regmap_init_i2c(client, &rm3100_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return rm3100_common_probe(&client->dev, regmap, client->irq);
}
static const struct of_device_id rm3100_dt_match[] = {
{ .compatible = "pni,rm3100", },
{ }
};
MODULE_DEVICE_TABLE(of, rm3100_dt_match);
static struct i2c_driver rm3100_driver = {
.driver = {
.name = "rm3100-i2c",
.of_match_table = rm3100_dt_match,
},
.probe_new = rm3100_probe,
};
module_i2c_driver(rm3100_driver);
MODULE_AUTHOR("Song Qiang <songqiang1304521@gmail.com>");
MODULE_DESCRIPTION("PNI RM3100 3-axis magnetometer i2c driver");
MODULE_LICENSE("GPL v2");
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