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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mpl115_i2c.c (1554B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Freescale MPL115A2 pressure/temperature sensor
      4 *
      5 * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
      6 *
      7 * (7-bit I2C slave address 0x60)
      8 *
      9 * Datasheet: http://www.nxp.com/files/sensors/doc/data_sheet/MPL115A2.pdf
     10 */
     11
     12#include <linux/module.h>
     13#include <linux/i2c.h>
     14
     15#include "mpl115.h"
     16
     17static int mpl115_i2c_init(struct device *dev)
     18{
     19	return 0;
     20}
     21
     22static int mpl115_i2c_read(struct device *dev, u8 address)
     23{
     24	return i2c_smbus_read_word_swapped(to_i2c_client(dev), address);
     25}
     26
     27static int mpl115_i2c_write(struct device *dev, u8 address, u8 value)
     28{
     29	return i2c_smbus_write_byte_data(to_i2c_client(dev), address, value);
     30}
     31
     32static const struct mpl115_ops mpl115_i2c_ops = {
     33	.init = mpl115_i2c_init,
     34	.read = mpl115_i2c_read,
     35	.write = mpl115_i2c_write,
     36};
     37
     38static int mpl115_i2c_probe(struct i2c_client *client,
     39			 const struct i2c_device_id *id)
     40{
     41	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
     42		return -EOPNOTSUPP;
     43
     44	return mpl115_probe(&client->dev, id->name, &mpl115_i2c_ops);
     45}
     46
     47static const struct i2c_device_id mpl115_i2c_id[] = {
     48	{ "mpl115", 0 },
     49	{ }
     50};
     51MODULE_DEVICE_TABLE(i2c, mpl115_i2c_id);
     52
     53static struct i2c_driver mpl115_i2c_driver = {
     54	.driver = {
     55		.name	= "mpl115",
     56	},
     57	.probe = mpl115_i2c_probe,
     58	.id_table = mpl115_i2c_id,
     59};
     60module_i2c_driver(mpl115_i2c_driver);
     61
     62MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
     63MODULE_DESCRIPTION("Freescale MPL115A2 pressure/temperature driver");
     64MODULE_LICENSE("GPL");
     65MODULE_IMPORT_NS(IIO_MPL115);