cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ltc2947-spi.c (1131B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Analog Devices LTC2947 high precision power and energy monitor over SPI
      4 *
      5 * Copyright 2019 Analog Devices Inc.
      6 */
      7#include <linux/module.h>
      8#include <linux/of.h>
      9#include <linux/regmap.h>
     10#include <linux/spi/spi.h>
     11
     12#include "ltc2947.h"
     13
     14static const struct regmap_config ltc2947_regmap_config = {
     15	.reg_bits = 16,
     16	.val_bits = 8,
     17	.read_flag_mask = BIT(0),
     18};
     19
     20static int ltc2947_probe(struct spi_device *spi)
     21{
     22	struct regmap *map;
     23
     24	map = devm_regmap_init_spi(spi, &ltc2947_regmap_config);
     25	if (IS_ERR(map))
     26		return PTR_ERR(map);
     27
     28	return ltc2947_core_probe(map, spi_get_device_id(spi)->name);
     29}
     30
     31static const struct spi_device_id ltc2947_id[] = {
     32	{"ltc2947", 0},
     33	{}
     34};
     35MODULE_DEVICE_TABLE(spi, ltc2947_id);
     36
     37static struct spi_driver ltc2947_driver = {
     38	.driver = {
     39		.name = "ltc2947",
     40		.of_match_table = ltc2947_of_match,
     41		.pm = &ltc2947_pm_ops,
     42	},
     43	.probe = ltc2947_probe,
     44	.id_table = ltc2947_id,
     45};
     46module_spi_driver(ltc2947_driver);
     47
     48MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>");
     49MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver");
     50MODULE_LICENSE("GPL");