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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/iio/magnetometer/hmc5843_i2c.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iio/magnetometer/hmc5843_i2c.c')
-rw-r--r-- | drivers/iio/magnetometer/hmc5843_i2c.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/hmc5843_i2c.c b/drivers/iio/magnetometer/hmc5843_i2c.c new file mode 100644 index 000000000..18a13dd51 --- /dev/null +++ b/drivers/iio/magnetometer/hmc5843_i2c.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * i2c driver for hmc5843/5843/5883/5883l/5983 + * + * Split from hmc5843.c + * Copyright (C) Josef Gajdusek <atx@atx.name> + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/iio/iio.h> +#include <linux/iio/triggered_buffer.h> + +#include "hmc5843.h" + +static const struct regmap_range hmc5843_readable_ranges[] = { + regmap_reg_range(0, HMC5843_ID_END), +}; + +static const struct regmap_access_table hmc5843_readable_table = { + .yes_ranges = hmc5843_readable_ranges, + .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges), +}; + +static const struct regmap_range hmc5843_writable_ranges[] = { + regmap_reg_range(0, HMC5843_MODE_REG), +}; + +static const struct regmap_access_table hmc5843_writable_table = { + .yes_ranges = hmc5843_writable_ranges, + .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges), +}; + +static const struct regmap_range hmc5843_volatile_ranges[] = { + regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG), +}; + +static const struct regmap_access_table hmc5843_volatile_table = { + .yes_ranges = hmc5843_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges), +}; + +static const struct regmap_config hmc5843_i2c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .rd_table = &hmc5843_readable_table, + .wr_table = &hmc5843_writable_table, + .volatile_table = &hmc5843_volatile_table, + + .cache_type = REGCACHE_RBTREE, +}; + +static int hmc5843_i2c_probe(struct i2c_client *cli, + const struct i2c_device_id *id) +{ + struct regmap *regmap = devm_regmap_init_i2c(cli, + &hmc5843_i2c_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return hmc5843_common_probe(&cli->dev, + regmap, + id->driver_data, id->name); +} + +static void hmc5843_i2c_remove(struct i2c_client *client) +{ + hmc5843_common_remove(&client->dev); +} + +static const struct i2c_device_id hmc5843_id[] = { + { "hmc5843", HMC5843_ID }, + { "hmc5883", HMC5883_ID }, + { "hmc5883l", HMC5883L_ID }, + { "hmc5983", HMC5983_ID }, + { } +}; +MODULE_DEVICE_TABLE(i2c, hmc5843_id); + +static const struct of_device_id hmc5843_of_match[] = { + { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID }, + { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID }, + { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID }, + { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID }, + {} +}; +MODULE_DEVICE_TABLE(of, hmc5843_of_match); + +static struct i2c_driver hmc5843_driver = { + .driver = { + .name = "hmc5843", + .pm = pm_sleep_ptr(&hmc5843_pm_ops), + .of_match_table = hmc5843_of_match, + }, + .id_table = hmc5843_id, + .probe = hmc5843_i2c_probe, + .remove = hmc5843_i2c_remove, +}; +module_i2c_driver(hmc5843_driver); + +MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>"); +MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(IIO_HMC5843); |