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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * i2c driver for hmc5843/5843/5883/5883l/59834 *5 * Split from hmc5843.c6 * Copyright (C) Josef Gajdusek <atx@atx.name>7 */8 9#include <linux/module.h>10#include <linux/i2c.h>11#include <linux/regmap.h>12#include <linux/iio/iio.h>13#include <linux/iio/triggered_buffer.h>14 15#include "hmc5843.h"16 17static const struct regmap_range hmc5843_readable_ranges[] = {18 regmap_reg_range(0, HMC5843_ID_END),19};20 21static const struct regmap_access_table hmc5843_readable_table = {22 .yes_ranges = hmc5843_readable_ranges,23 .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),24};25 26static const struct regmap_range hmc5843_writable_ranges[] = {27 regmap_reg_range(0, HMC5843_MODE_REG),28};29 30static const struct regmap_access_table hmc5843_writable_table = {31 .yes_ranges = hmc5843_writable_ranges,32 .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),33};34 35static const struct regmap_range hmc5843_volatile_ranges[] = {36 regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),37};38 39static const struct regmap_access_table hmc5843_volatile_table = {40 .yes_ranges = hmc5843_volatile_ranges,41 .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),42};43 44static const struct regmap_config hmc5843_i2c_regmap_config = {45 .reg_bits = 8,46 .val_bits = 8,47 48 .rd_table = &hmc5843_readable_table,49 .wr_table = &hmc5843_writable_table,50 .volatile_table = &hmc5843_volatile_table,51 52 .cache_type = REGCACHE_RBTREE,53};54 55static int hmc5843_i2c_probe(struct i2c_client *cli)56{57 const struct i2c_device_id *id = i2c_client_get_device_id(cli);58 struct regmap *regmap = devm_regmap_init_i2c(cli,59 &hmc5843_i2c_regmap_config);60 if (IS_ERR(regmap))61 return PTR_ERR(regmap);62 63 return hmc5843_common_probe(&cli->dev,64 regmap,65 id->driver_data, id->name);66}67 68static void hmc5843_i2c_remove(struct i2c_client *client)69{70 hmc5843_common_remove(&client->dev);71}72 73static const struct i2c_device_id hmc5843_id[] = {74 { "hmc5843", HMC5843_ID },75 { "hmc5883", HMC5883_ID },76 { "hmc5883l", HMC5883L_ID },77 { "hmc5983", HMC5983_ID },78 { }79};80MODULE_DEVICE_TABLE(i2c, hmc5843_id);81 82static const struct of_device_id hmc5843_of_match[] = {83 { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID },84 { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID },85 { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID },86 { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID },87 {}88};89MODULE_DEVICE_TABLE(of, hmc5843_of_match);90 91static struct i2c_driver hmc5843_driver = {92 .driver = {93 .name = "hmc5843",94 .pm = pm_sleep_ptr(&hmc5843_pm_ops),95 .of_match_table = hmc5843_of_match,96 },97 .id_table = hmc5843_id,98 .probe = hmc5843_i2c_probe,99 .remove = hmc5843_i2c_remove,100};101module_i2c_driver(hmc5843_driver);102 103MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>");104MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver");105MODULE_LICENSE("GPL");106MODULE_IMPORT_NS(IIO_HMC5843);107