1*9f90fd65SNuno Sá // SPDX-License-Identifier: GPL-2.0 2*9f90fd65SNuno Sá /* 3*9f90fd65SNuno Sá * Analog Devices LTC2947 high precision power and energy monitor over SPI 4*9f90fd65SNuno Sá * 5*9f90fd65SNuno Sá * Copyright 2019 Analog Devices Inc. 6*9f90fd65SNuno Sá */ 7*9f90fd65SNuno Sá #include <linux/module.h> 8*9f90fd65SNuno Sá #include <linux/of.h> 9*9f90fd65SNuno Sá #include <linux/regmap.h> 10*9f90fd65SNuno Sá #include <linux/spi/spi.h> 11*9f90fd65SNuno Sá 12*9f90fd65SNuno Sá #include "ltc2947.h" 13*9f90fd65SNuno Sá 14*9f90fd65SNuno Sá static const struct regmap_config ltc2947_regmap_config = { 15*9f90fd65SNuno Sá .reg_bits = 16, 16*9f90fd65SNuno Sá .val_bits = 8, 17*9f90fd65SNuno Sá .read_flag_mask = BIT(0), 18*9f90fd65SNuno Sá }; 19*9f90fd65SNuno Sá 20*9f90fd65SNuno Sá static int ltc2947_probe(struct spi_device *spi) 21*9f90fd65SNuno Sá { 22*9f90fd65SNuno Sá struct regmap *map; 23*9f90fd65SNuno Sá 24*9f90fd65SNuno Sá map = devm_regmap_init_spi(spi, <c2947_regmap_config); 25*9f90fd65SNuno Sá if (IS_ERR(map)) 26*9f90fd65SNuno Sá return PTR_ERR(map); 27*9f90fd65SNuno Sá 28*9f90fd65SNuno Sá return ltc2947_core_probe(map, spi_get_device_id(spi)->name); 29*9f90fd65SNuno Sá } 30*9f90fd65SNuno Sá 31*9f90fd65SNuno Sá static const struct spi_device_id ltc2947_id[] = { 32*9f90fd65SNuno Sá {"ltc2947", 0}, 33*9f90fd65SNuno Sá {} 34*9f90fd65SNuno Sá }; 35*9f90fd65SNuno Sá MODULE_DEVICE_TABLE(spi, ltc2947_id); 36*9f90fd65SNuno Sá 37*9f90fd65SNuno Sá static struct spi_driver ltc2947_driver = { 38*9f90fd65SNuno Sá .driver = { 39*9f90fd65SNuno Sá .name = "ltc2947", 40*9f90fd65SNuno Sá .of_match_table = ltc2947_of_match, 41*9f90fd65SNuno Sá .pm = <c2947_pm_ops, 42*9f90fd65SNuno Sá }, 43*9f90fd65SNuno Sá .probe = ltc2947_probe, 44*9f90fd65SNuno Sá .id_table = ltc2947_id, 45*9f90fd65SNuno Sá }; 46*9f90fd65SNuno Sá module_spi_driver(ltc2947_driver); 47*9f90fd65SNuno Sá 48*9f90fd65SNuno Sá MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>"); 49*9f90fd65SNuno Sá MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver"); 50*9f90fd65SNuno Sá MODULE_LICENSE("GPL"); 51