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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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127
drivers/hwmon/pmbus/max16064.c Normal file
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/*
* Hardware monitoring driver for Maxim MAX16064
*
* Copyright (c) 2011 Ericsson AB.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include "pmbus.h"
#define MAX16064_MFR_VOUT_PEAK 0xd4
#define MAX16064_MFR_TEMPERATURE_PEAK 0xd6
static int max16064_read_word_data(struct i2c_client *client, int page, int reg)
{
int ret;
switch (reg) {
case PMBUS_VIRT_READ_VOUT_MAX:
ret = pmbus_read_word_data(client, page,
MAX16064_MFR_VOUT_PEAK);
break;
case PMBUS_VIRT_READ_TEMP_MAX:
ret = pmbus_read_word_data(client, page,
MAX16064_MFR_TEMPERATURE_PEAK);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = 0;
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int max16064_write_word_data(struct i2c_client *client, int page,
int reg, u16 word)
{
int ret;
switch (reg) {
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX16064_MFR_VOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX16064_MFR_TEMPERATURE_PEAK,
0xffff);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static struct pmbus_driver_info max16064_info = {
.pages = 4,
.format[PSC_VOLTAGE_IN] = direct,
.format[PSC_VOLTAGE_OUT] = direct,
.format[PSC_TEMPERATURE] = direct,
.m[PSC_VOLTAGE_IN] = 19995,
.b[PSC_VOLTAGE_IN] = 0,
.R[PSC_VOLTAGE_IN] = -1,
.m[PSC_VOLTAGE_OUT] = 19995,
.b[PSC_VOLTAGE_OUT] = 0,
.R[PSC_VOLTAGE_OUT] = -1,
.m[PSC_TEMPERATURE] = -7612,
.b[PSC_TEMPERATURE] = 335,
.R[PSC_TEMPERATURE] = -3,
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP
| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP,
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
.read_word_data = max16064_read_word_data,
.write_word_data = max16064_write_word_data,
};
static int max16064_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
return pmbus_do_probe(client, id, &max16064_info);
}
static const struct i2c_device_id max16064_id[] = {
{"max16064", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, max16064_id);
/* This is the driver that will be inserted */
static struct i2c_driver max16064_driver = {
.driver = {
.name = "max16064",
},
.probe = max16064_probe,
.remove = pmbus_do_remove,
.id_table = max16064_id,
};
module_i2c_driver(max16064_driver);
MODULE_AUTHOR("Guenter Roeck");
MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064");
MODULE_LICENSE("GPL");