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