1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Analog Devices LTC2947 high precision power and energy monitor over I2C 4 * 5 * Copyright 2019 Analog Devices Inc. 6 */ 7 #include <linux/i2c.h> 8 #include <linux/module.h> 9 #include <linux/regmap.h> 10 11 #include "ltc2947.h" 12 13 static const struct regmap_config ltc2947_regmap_config = { 14 .reg_bits = 8, 15 .val_bits = 8, 16 }; 17 18 static int ltc2947_probe(struct i2c_client *i2c) 19 { 20 struct regmap *map; 21 22 map = devm_regmap_init_i2c(i2c, <c2947_regmap_config); 23 if (IS_ERR(map)) 24 return PTR_ERR(map); 25 26 return ltc2947_core_probe(map, i2c->name); 27 } 28 29 static const struct i2c_device_id ltc2947_id[] = { 30 {"ltc2947", 0}, 31 {} 32 }; 33 MODULE_DEVICE_TABLE(i2c, ltc2947_id); 34 35 static struct i2c_driver ltc2947_driver = { 36 .driver = { 37 .name = "ltc2947", 38 .of_match_table = ltc2947_of_match, 39 .pm = pm_sleep_ptr(<c2947_pm_ops), 40 }, 41 .probe_new = ltc2947_probe, 42 .id_table = ltc2947_id, 43 }; 44 module_i2c_driver(ltc2947_driver); 45 46 MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>"); 47 MODULE_DESCRIPTION("LTC2947 I2C power and energy monitor driver"); 48 MODULE_LICENSE("GPL"); 49