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105 lines
2.8 KiB
105 lines
2.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* i2c driver for hmc5843/5843/5883/5883l/5983 |
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* |
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* Split from hmc5843.c |
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* Copyright (C) Josef Gajdusek <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/i2c.h> |
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#include <linux/regmap.h> |
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#include <linux/iio/iio.h> |
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#include <linux/iio/triggered_buffer.h> |
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#include "hmc5843.h" |
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static const struct regmap_range hmc5843_readable_ranges[] = { |
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regmap_reg_range(0, HMC5843_ID_END), |
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}; |
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static const struct regmap_access_table hmc5843_readable_table = { |
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.yes_ranges = hmc5843_readable_ranges, |
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.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges), |
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}; |
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static const struct regmap_range hmc5843_writable_ranges[] = { |
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regmap_reg_range(0, HMC5843_MODE_REG), |
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}; |
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static const struct regmap_access_table hmc5843_writable_table = { |
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.yes_ranges = hmc5843_writable_ranges, |
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.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges), |
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}; |
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static const struct regmap_range hmc5843_volatile_ranges[] = { |
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regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG), |
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}; |
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static const struct regmap_access_table hmc5843_volatile_table = { |
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.yes_ranges = hmc5843_volatile_ranges, |
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.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges), |
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}; |
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static const struct regmap_config hmc5843_i2c_regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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.rd_table = &hmc5843_readable_table, |
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.wr_table = &hmc5843_writable_table, |
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.volatile_table = &hmc5843_volatile_table, |
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.cache_type = REGCACHE_RBTREE, |
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}; |
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static int hmc5843_i2c_probe(struct i2c_client *cli, |
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const struct i2c_device_id *id) |
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{ |
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struct regmap *regmap = devm_regmap_init_i2c(cli, |
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&hmc5843_i2c_regmap_config); |
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if (IS_ERR(regmap)) |
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return PTR_ERR(regmap); |
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return hmc5843_common_probe(&cli->dev, |
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regmap, |
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id->driver_data, id->name); |
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} |
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static int hmc5843_i2c_remove(struct i2c_client *client) |
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{ |
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return hmc5843_common_remove(&client->dev); |
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} |
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static const struct i2c_device_id hmc5843_id[] = { |
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{ "hmc5843", HMC5843_ID }, |
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{ "hmc5883", HMC5883_ID }, |
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{ "hmc5883l", HMC5883L_ID }, |
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{ "hmc5983", HMC5983_ID }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(i2c, hmc5843_id); |
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static const struct of_device_id hmc5843_of_match[] = { |
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{ .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID }, |
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{ .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID }, |
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{ .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID }, |
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{ .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(of, hmc5843_of_match); |
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static struct i2c_driver hmc5843_driver = { |
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.driver = { |
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.name = "hmc5843", |
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.pm = HMC5843_PM_OPS, |
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.of_match_table = hmc5843_of_match, |
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}, |
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.id_table = hmc5843_id, |
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.probe = hmc5843_i2c_probe, |
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.remove = hmc5843_i2c_remove, |
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}; |
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module_i2c_driver(hmc5843_driver); |
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MODULE_AUTHOR("Josef Gajdusek <[email protected]>"); |
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MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); |
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MODULE_LICENSE("GPL");
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