drivers/hwmon/pmbus/tps40422.c

   1 /*
   2  * Hardware monitoring driver for TI TPS40422
   3  *
   4  * Copyright (c) 2014 Nokia Solutions and Networks.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/module.h>
  19 #include <linux/init.h>
  20 #include <linux/err.h>
  21 #include <linux/i2c.h>
  22 #include "pmbus.h"
  23
  24 static struct pmbus_driver_info tps40422_info = {
  25         .pages = 2,
  26         .format[PSC_VOLTAGE_IN] = linear,
  27         .format[PSC_VOLTAGE_OUT] = linear,
  28         .format[PSC_TEMPERATURE] = linear,
  29         .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
  30                 | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
  31                 | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
  32         .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
  33                 | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
  34                 | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
  35 };
  36
  37 static int tps40422_probe(struct i2c_client *client,
  38                           const struct i2c_device_id *id)
  39 {
  40         return pmbus_do_probe(client, id, &tps40422_info);
  41 }
  42
  43 static const struct i2c_device_id tps40422_id[] = {
  44         {"tps40422", 0},
  45         {}
  46 };
  47
  48 MODULE_DEVICE_TABLE(i2c, tps40422_id);
  49
  50 /* This is the driver that will be inserted */
  51 static struct i2c_driver tps40422_driver = {
  52         .driver = {
  53                    .name = "tps40422",
  54                    },
  55         .probe = tps40422_probe,
  56         .remove = pmbus_do_remove,
  57         .id_table = tps40422_id,
  58 };
  59
  60 module_i2c_driver(tps40422_driver);
  61
  62 MODULE_AUTHOR("Zhu Laiwen <richard.zhu@nsn.com>");
  63 MODULE_DESCRIPTION("PMBus driver for TI TPS40422");
  64 MODULE_LICENSE("GPL");