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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fxas21002c_spi.c (1686B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Driver for NXP Fxas21002c Gyroscope - SPI
      4 *
      5 * Copyright (C) 2019 Linaro Ltd.
      6 */
      7
      8#include <linux/err.h>
      9#include <linux/mod_devicetable.h>
     10#include <linux/module.h>
     11#include <linux/regmap.h>
     12#include <linux/spi/spi.h>
     13
     14#include "fxas21002c.h"
     15
     16static const struct regmap_config fxas21002c_regmap_spi_conf = {
     17	.reg_bits = 8,
     18	.val_bits = 8,
     19	.max_register = FXAS21002C_REG_CTRL3,
     20};
     21
     22static int fxas21002c_spi_probe(struct spi_device *spi)
     23{
     24	const struct spi_device_id *id = spi_get_device_id(spi);
     25	struct regmap *regmap;
     26
     27	regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf);
     28	if (IS_ERR(regmap)) {
     29		dev_err(&spi->dev, "Failed to register spi regmap: %ld\n",
     30			PTR_ERR(regmap));
     31		return PTR_ERR(regmap);
     32	}
     33
     34	return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name);
     35}
     36
     37static void fxas21002c_spi_remove(struct spi_device *spi)
     38{
     39	fxas21002c_core_remove(&spi->dev);
     40}
     41
     42static const struct spi_device_id fxas21002c_spi_id[] = {
     43	{ "fxas21002c", 0 },
     44	{ }
     45};
     46MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id);
     47
     48static const struct of_device_id fxas21002c_spi_of_match[] = {
     49	{ .compatible = "nxp,fxas21002c", },
     50	{ }
     51};
     52MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match);
     53
     54static struct spi_driver fxas21002c_spi_driver = {
     55	.driver = {
     56		.name = "fxas21002c_spi",
     57		.pm = &fxas21002c_pm_ops,
     58		.of_match_table = fxas21002c_spi_of_match,
     59	},
     60	.probe		= fxas21002c_spi_probe,
     61	.remove		= fxas21002c_spi_remove,
     62	.id_table	= fxas21002c_spi_id,
     63};
     64module_spi_driver(fxas21002c_spi_driver);
     65
     66MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
     67MODULE_LICENSE("GPL v2");
     68MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");