drivers/hwmon/pmbus/xdpe152c4.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Hardware monitoring driver for Infineon Multi-phase Digital VR Controllers
   4  *
   5  * Copyright (c) 2022 Infineon Technologies. All rights reserved.
   6  */
   7
   8 #include <linux/err.h>
   9 #include <linux/i2c.h>
  10 #include <linux/init.h>
  11 #include <linux/kernel.h>
  12 #include <linux/module.h>
  13 #include "pmbus.h"
  14
  15 #define XDPE152_PAGE_NUM 2
  16
  17 static struct pmbus_driver_info xdpe152_info = {
  18         .pages = XDPE152_PAGE_NUM,
  19         .format[PSC_VOLTAGE_IN] = linear,
  20         .format[PSC_VOLTAGE_OUT] = linear,
  21         .format[PSC_TEMPERATURE] = linear,
  22         .format[PSC_CURRENT_IN] = linear,
  23         .format[PSC_CURRENT_OUT] = linear,
  24         .format[PSC_POWER] = linear,
  25         .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
  26                 PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
  27                 PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP |
  28                 PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
  29         .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
  30                 PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
  31                 PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
  32 };
  33
  34 static int xdpe152_probe(struct i2c_client *client)
  35 {
  36         struct pmbus_driver_info *info;
  37
  38         info = devm_kmemdup(&client->dev, &xdpe152_info, sizeof(*info),
  39                             GFP_KERNEL);
  40         if (!info)
  41                 return -ENOMEM;
  42
  43         return pmbus_do_probe(client, info);
  44 }
  45
  46 static const struct i2c_device_id xdpe152_id[] = {
  47         {"xdpe152c4", 0},
  48         {"xdpe15284", 0},
  49         {}
  50 };
  51
  52 MODULE_DEVICE_TABLE(i2c, xdpe152_id);
  53
  54 static const struct of_device_id __maybe_unused xdpe152_of_match[] = {
  55         {.compatible = "infineon,xdpe152c4"},
  56         {.compatible = "infineon,xdpe15284"},
  57         {}
  58 };
  59 MODULE_DEVICE_TABLE(of, xdpe152_of_match);
  60
  61 static struct i2c_driver xdpe152_driver = {
  62         .driver = {
  63                 .name = "xdpe152c4",
  64                 .of_match_table = of_match_ptr(xdpe152_of_match),
  65         },
  66         .probe_new = xdpe152_probe,
  67         .id_table = xdpe152_id,
  68 };
  69
  70 module_i2c_driver(xdpe152_driver);
  71
  72 MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@infineon.com>");
  73 MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family");
  74 MODULE_LICENSE("GPL");
  75 MODULE_IMPORT_NS(PMBUS);