1061d8518f
In VID mode, output voltages are measured and reported as VID values, and have to be converted to voltages using VID conversion tables or functions. Support is added for VR11 only at this time. This patch enables support for PMBus devices supporting VID VR11 based output voltage selection such as NCP4200 and NCP4208. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* Hardware monitoring driver for Maxim MAX16064
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*
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* Copyright (c) 2011 Ericsson AB.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include "pmbus.h"
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static struct pmbus_driver_info max16064_info = {
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.pages = 4,
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.format[PSC_VOLTAGE_IN] = direct,
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.format[PSC_VOLTAGE_OUT] = direct,
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.format[PSC_TEMPERATURE] = direct,
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.m[PSC_VOLTAGE_IN] = 19995,
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.b[PSC_VOLTAGE_IN] = 0,
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.R[PSC_VOLTAGE_IN] = -1,
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.m[PSC_VOLTAGE_OUT] = 19995,
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.b[PSC_VOLTAGE_OUT] = 0,
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.R[PSC_VOLTAGE_OUT] = -1,
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.m[PSC_TEMPERATURE] = -7612,
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.b[PSC_TEMPERATURE] = 335,
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.R[PSC_TEMPERATURE] = -3,
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.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP
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| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP,
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.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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};
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static int max16064_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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return pmbus_do_probe(client, id, &max16064_info);
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}
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static int max16064_remove(struct i2c_client *client)
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{
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return pmbus_do_remove(client);
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}
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static const struct i2c_device_id max16064_id[] = {
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{"max16064", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, max16064_id);
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/* This is the driver that will be inserted */
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static struct i2c_driver max16064_driver = {
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.driver = {
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.name = "max16064",
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},
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.probe = max16064_probe,
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.remove = max16064_remove,
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.id_table = max16064_id,
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};
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static int __init max16064_init(void)
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{
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return i2c_add_driver(&max16064_driver);
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}
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static void __exit max16064_exit(void)
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{
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i2c_del_driver(&max16064_driver);
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}
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MODULE_AUTHOR("Guenter Roeck");
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MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064");
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MODULE_LICENSE("GPL");
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module_init(max16064_init);
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module_exit(max16064_exit);
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