^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * i2c driver for hmc5843/5843/5883/5883l/5983
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Split from hmc5843.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) Josef Gajdusek <atx@atx.name>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/iio/iio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/iio/triggered_buffer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "hmc5843.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static const struct regmap_range hmc5843_readable_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) regmap_reg_range(0, HMC5843_ID_END),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const struct regmap_access_table hmc5843_readable_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) .yes_ranges = hmc5843_readable_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const struct regmap_range hmc5843_writable_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) regmap_reg_range(0, HMC5843_MODE_REG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const struct regmap_access_table hmc5843_writable_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .yes_ranges = hmc5843_writable_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static const struct regmap_range hmc5843_volatile_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static const struct regmap_access_table hmc5843_volatile_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .yes_ranges = hmc5843_volatile_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static const struct regmap_config hmc5843_i2c_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .rd_table = &hmc5843_readable_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .wr_table = &hmc5843_writable_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .volatile_table = &hmc5843_volatile_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int hmc5843_i2c_probe(struct i2c_client *cli,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct regmap *regmap = devm_regmap_init_i2c(cli,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) &hmc5843_i2c_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (IS_ERR(regmap))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return hmc5843_common_probe(&cli->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) id->driver_data, id->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static int hmc5843_i2c_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return hmc5843_common_remove(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static const struct i2c_device_id hmc5843_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) { "hmc5843", HMC5843_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) { "hmc5883", HMC5883_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) { "hmc5883l", HMC5883L_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) { "hmc5983", HMC5983_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) MODULE_DEVICE_TABLE(i2c, hmc5843_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static const struct of_device_id hmc5843_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) MODULE_DEVICE_TABLE(of, hmc5843_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static struct i2c_driver hmc5843_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .name = "hmc5843",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .pm = HMC5843_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .of_match_table = hmc5843_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .id_table = hmc5843_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .probe = hmc5843_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .remove = hmc5843_i2c_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) module_i2c_driver(hmc5843_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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