Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Analog Devices LTC2947 high precision power and energy monitor over SPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright 2019 Analog Devices Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "ltc2947.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) static const struct regmap_config ltc2947_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	.reg_bits = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	.read_flag_mask = BIT(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static int ltc2947_probe(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	struct regmap *map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	map = devm_regmap_init_spi(spi, &ltc2947_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	if (IS_ERR(map))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		return PTR_ERR(map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	return ltc2947_core_probe(map, spi_get_device_id(spi)->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static const struct spi_device_id ltc2947_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	{"ltc2947", 0},
^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) MODULE_DEVICE_TABLE(spi, ltc2947_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static struct spi_driver ltc2947_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		.name = "ltc2947",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		.of_match_table = ltc2947_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		.pm = &ltc2947_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	.probe = ltc2947_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	.id_table = ltc2947_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) module_spi_driver(ltc2947_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) MODULE_LICENSE("GPL");