drivers/hwmon/pmbus/irps5401.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Hardware monitoring driver for the Infineon IRPS5401M PMIC.
   4  *
   5  * Copyright (c) 2019 SED Systems, a division of Calian Ltd.
   6  *
   7  * The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
   8  * this driver does not currently support them.
   9  */
  10
  11 #include <linux/err.h>
  12 #include <linux/i2c.h>
  13 #include <linux/init.h>
  14 #include <linux/kernel.h>
  15 #include <linux/module.h>
  16 #include "pmbus.h"
  17
  18 #define IRPS5401_SW_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | \
  19                           PMBUS_HAVE_STATUS_INPUT | \
  20                           PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
  21                           PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
  22                           PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
  23                           PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
  24
  25 #define IRPS5401_LDO_FUNC (PMBUS_HAVE_VIN | \
  26                            PMBUS_HAVE_STATUS_INPUT | \
  27                            PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
  28                            PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
  29                            PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
  30                            PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
  31
  32 static struct pmbus_driver_info irps5401_info = {
  33         .pages = 5,
  34         .func[0] = IRPS5401_SW_FUNC,
  35         .func[1] = IRPS5401_SW_FUNC,
  36         .func[2] = IRPS5401_SW_FUNC,
  37         .func[3] = IRPS5401_SW_FUNC,
  38         .func[4] = IRPS5401_LDO_FUNC,
  39 };
  40
  41 static int irps5401_probe(struct i2c_client *client)
  42 {
  43         return pmbus_do_probe(client, &irps5401_info);
  44 }
  45
  46 static const struct i2c_device_id irps5401_id[] = {
  47         {"irps5401", 0},
  48         {}
  49 };
  50
  51 MODULE_DEVICE_TABLE(i2c, irps5401_id);
  52
  53 static struct i2c_driver irps5401_driver = {
  54         .driver = {
  55                    .name = "irps5401",
  56                    },
  57         .probe_new = irps5401_probe,
  58         .id_table = irps5401_id,
  59 };
  60
  61 module_i2c_driver(irps5401_driver);
  62
  63 MODULE_AUTHOR("Robert Hancock");
  64 MODULE_DESCRIPTION("PMBus driver for Infineon IRPS5401");
  65 MODULE_LICENSE("GPL");
  66 MODULE_IMPORT_NS(PMBUS);