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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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118
drivers/hwmon/adt7310.c Normal file
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/*
* ADT7310/ADT7310 digital temperature sensor driver
*
* Copyright 2012-2013 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/spi/spi.h>
#include <asm/unaligned.h>
#include "adt7x10.h"
#define ADT7310_STATUS 0
#define ADT7310_CONFIG 1
#define ADT7310_TEMPERATURE 2
#define ADT7310_ID 3
#define ADT7310_T_CRIT 4
#define ADT7310_T_HYST 5
#define ADT7310_T_ALARM_HIGH 6
#define ADT7310_T_ALARM_LOW 7
static const u8 adt7310_reg_table[] = {
[ADT7X10_TEMPERATURE] = ADT7310_TEMPERATURE,
[ADT7X10_STATUS] = ADT7310_STATUS,
[ADT7X10_CONFIG] = ADT7310_CONFIG,
[ADT7X10_T_ALARM_HIGH] = ADT7310_T_ALARM_HIGH,
[ADT7X10_T_ALARM_LOW] = ADT7310_T_ALARM_LOW,
[ADT7X10_T_CRIT] = ADT7310_T_CRIT,
[ADT7X10_T_HYST] = ADT7310_T_HYST,
[ADT7X10_ID] = ADT7310_ID,
};
#define ADT7310_CMD_REG_OFFSET 3
#define ADT7310_CMD_READ 0x40
#define AD7310_COMMAND(reg) (adt7310_reg_table[(reg)] << ADT7310_CMD_REG_OFFSET)
static int adt7310_spi_read_word(struct device *dev, u8 reg)
{
struct spi_device *spi = to_spi_device(dev);
return spi_w8r16be(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ);
}
static int adt7310_spi_write_word(struct device *dev, u8 reg, u16 data)
{
struct spi_device *spi = to_spi_device(dev);
u8 buf[3];
buf[0] = AD7310_COMMAND(reg);
put_unaligned_be16(data, &buf[1]);
return spi_write(spi, buf, sizeof(buf));
}
static int adt7310_spi_read_byte(struct device *dev, u8 reg)
{
struct spi_device *spi = to_spi_device(dev);
return spi_w8r8(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ);
}
static int adt7310_spi_write_byte(struct device *dev, u8 reg,
u8 data)
{
struct spi_device *spi = to_spi_device(dev);
u8 buf[2];
buf[0] = AD7310_COMMAND(reg);
buf[1] = data;
return spi_write(spi, buf, sizeof(buf));
}
static const struct adt7x10_ops adt7310_spi_ops = {
.read_word = adt7310_spi_read_word,
.write_word = adt7310_spi_write_word,
.read_byte = adt7310_spi_read_byte,
.write_byte = adt7310_spi_write_byte,
};
static int adt7310_spi_probe(struct spi_device *spi)
{
return adt7x10_probe(&spi->dev, spi_get_device_id(spi)->name, spi->irq,
&adt7310_spi_ops);
}
static int adt7310_spi_remove(struct spi_device *spi)
{
return adt7x10_remove(&spi->dev, spi->irq);
}
static const struct spi_device_id adt7310_id[] = {
{ "adt7310", 0 },
{ "adt7320", 0 },
{}
};
MODULE_DEVICE_TABLE(spi, adt7310_id);
static struct spi_driver adt7310_driver = {
.driver = {
.name = "adt7310",
.owner = THIS_MODULE,
.pm = ADT7X10_DEV_PM_OPS,
},
.probe = adt7310_spi_probe,
.remove = adt7310_spi_remove,
.id_table = adt7310_id,
};
module_spi_driver(adt7310_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ADT7310/ADT7320 driver");
MODULE_LICENSE("GPL");