17247645fSCristina Moraru /* 27247645fSCristina Moraru * i2c driver for hmc5843/5843/5883/5883l/5983 37247645fSCristina Moraru * 47247645fSCristina Moraru * Split from hmc5843.c 57247645fSCristina Moraru * Copyright (C) Josef Gajdusek <atx@atx.name> 67247645fSCristina Moraru * 77247645fSCristina Moraru * This program is free software; you can redistribute it and/or modify 87247645fSCristina Moraru * it under the terms of the GNU General Public License version 2 as 97247645fSCristina Moraru * published by the Free Software Foundation. 107247645fSCristina Moraru */ 117247645fSCristina Moraru 127247645fSCristina Moraru #include <linux/module.h> 137247645fSCristina Moraru #include <linux/i2c.h> 147247645fSCristina Moraru #include <linux/regmap.h> 157247645fSCristina Moraru #include <linux/iio/iio.h> 167247645fSCristina Moraru #include <linux/iio/triggered_buffer.h> 177247645fSCristina Moraru 187247645fSCristina Moraru #include "hmc5843.h" 197247645fSCristina Moraru 207247645fSCristina Moraru static const struct regmap_range hmc5843_readable_ranges[] = { 217247645fSCristina Moraru regmap_reg_range(0, HMC5843_ID_END), 227247645fSCristina Moraru }; 237247645fSCristina Moraru 247247645fSCristina Moraru static const struct regmap_access_table hmc5843_readable_table = { 257247645fSCristina Moraru .yes_ranges = hmc5843_readable_ranges, 267247645fSCristina Moraru .n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges), 277247645fSCristina Moraru }; 287247645fSCristina Moraru 297247645fSCristina Moraru static const struct regmap_range hmc5843_writable_ranges[] = { 307247645fSCristina Moraru regmap_reg_range(0, HMC5843_MODE_REG), 317247645fSCristina Moraru }; 327247645fSCristina Moraru 337247645fSCristina Moraru static const struct regmap_access_table hmc5843_writable_table = { 347247645fSCristina Moraru .yes_ranges = hmc5843_writable_ranges, 357247645fSCristina Moraru .n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges), 367247645fSCristina Moraru }; 377247645fSCristina Moraru 387247645fSCristina Moraru static const struct regmap_range hmc5843_volatile_ranges[] = { 397247645fSCristina Moraru regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG), 407247645fSCristina Moraru }; 417247645fSCristina Moraru 427247645fSCristina Moraru static const struct regmap_access_table hmc5843_volatile_table = { 437247645fSCristina Moraru .yes_ranges = hmc5843_volatile_ranges, 447247645fSCristina Moraru .n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges), 457247645fSCristina Moraru }; 467247645fSCristina Moraru 477247645fSCristina Moraru static const struct regmap_config hmc5843_i2c_regmap_config = { 487247645fSCristina Moraru .reg_bits = 8, 497247645fSCristina Moraru .val_bits = 8, 507247645fSCristina Moraru 517247645fSCristina Moraru .rd_table = &hmc5843_readable_table, 527247645fSCristina Moraru .wr_table = &hmc5843_writable_table, 537247645fSCristina Moraru .volatile_table = &hmc5843_volatile_table, 547247645fSCristina Moraru 557247645fSCristina Moraru .cache_type = REGCACHE_RBTREE, 567247645fSCristina Moraru }; 577247645fSCristina Moraru 587247645fSCristina Moraru static int hmc5843_i2c_probe(struct i2c_client *cli, 597247645fSCristina Moraru const struct i2c_device_id *id) 607247645fSCristina Moraru { 617247645fSCristina Moraru return hmc5843_common_probe(&cli->dev, 627247645fSCristina Moraru devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config), 637247645fSCristina Moraru id->driver_data, id->name); 647247645fSCristina Moraru } 657247645fSCristina Moraru 667247645fSCristina Moraru static int hmc5843_i2c_remove(struct i2c_client *client) 677247645fSCristina Moraru { 687247645fSCristina Moraru return hmc5843_common_remove(&client->dev); 697247645fSCristina Moraru } 707247645fSCristina Moraru 717247645fSCristina Moraru static const struct i2c_device_id hmc5843_id[] = { 727247645fSCristina Moraru { "hmc5843", HMC5843_ID }, 737247645fSCristina Moraru { "hmc5883", HMC5883_ID }, 747247645fSCristina Moraru { "hmc5883l", HMC5883L_ID }, 757247645fSCristina Moraru { "hmc5983", HMC5983_ID }, 767247645fSCristina Moraru { } 777247645fSCristina Moraru }; 787247645fSCristina Moraru MODULE_DEVICE_TABLE(i2c, hmc5843_id); 797247645fSCristina Moraru 807247645fSCristina Moraru static const struct of_device_id hmc5843_of_match[] = { 817247645fSCristina Moraru { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID }, 827247645fSCristina Moraru { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID }, 837247645fSCristina Moraru { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID }, 847247645fSCristina Moraru { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID }, 857247645fSCristina Moraru {} 867247645fSCristina Moraru }; 877247645fSCristina Moraru MODULE_DEVICE_TABLE(of, hmc5843_of_match); 887247645fSCristina Moraru 897247645fSCristina Moraru static struct i2c_driver hmc5843_driver = { 907247645fSCristina Moraru .driver = { 917247645fSCristina Moraru .name = "hmc5843", 927247645fSCristina Moraru .pm = HMC5843_PM_OPS, 937247645fSCristina Moraru .of_match_table = hmc5843_of_match, 947247645fSCristina Moraru }, 957247645fSCristina Moraru .id_table = hmc5843_id, 967247645fSCristina Moraru .probe = hmc5843_i2c_probe, 977247645fSCristina Moraru .remove = hmc5843_i2c_remove, 987247645fSCristina Moraru }; 997247645fSCristina Moraru module_i2c_driver(hmc5843_driver); 1007247645fSCristina Moraru 1017247645fSCristina Moraru MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>"); 1027247645fSCristina Moraru MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); 1037247645fSCristina Moraru MODULE_LICENSE("GPL"); 104