drivers/hwmon/pmbus/tda38640.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Hardware monitoring driver for Infineon TDA38640
   4  *
   5  * Copyright (c) 2023 9elements GmbH
   6  *
   7  */
   8
   9 #include <linux/err.h>
  10 #include <linux/i2c.h>
  11 #include <linux/init.h>
  12 #include <linux/kernel.h>
  13 #include <linux/module.h>
  14 #include <linux/regulator/driver.h>
  15 #include "pmbus.h"
  16
  17 static const struct regulator_desc __maybe_unused tda38640_reg_desc[] = {
  18         PMBUS_REGULATOR("vout", 0),
  19 };
  20
  21 static struct pmbus_driver_info tda38640_info = {
  22         .pages = 1,
  23         .format[PSC_VOLTAGE_IN] = linear,
  24         .format[PSC_VOLTAGE_OUT] = linear,
  25         .format[PSC_CURRENT_OUT] = linear,
  26         .format[PSC_CURRENT_IN] = linear,
  27         .format[PSC_POWER] = linear,
  28         .format[PSC_TEMPERATURE] = linear,
  29
  30         .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
  31             | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
  32             | PMBUS_HAVE_IIN
  33             | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
  34             | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
  35             | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN,
  36 #if IS_ENABLED(CONFIG_SENSORS_TDA38640_REGULATOR)
  37         .num_regulators = 1,
  38         .reg_desc = tda38640_reg_desc,
  39 #endif
  40 };
  41
  42 static int tda38640_probe(struct i2c_client *client)
  43 {
  44         return pmbus_do_probe(client, &tda38640_info);
  45 }
  46
  47 static const struct i2c_device_id tda38640_id[] = {
  48         {"tda38640", 0},
  49         {}
  50 };
  51 MODULE_DEVICE_TABLE(i2c, tda38640_id);
  52
  53 static const struct of_device_id __maybe_unused tda38640_of_match[] = {
  54         { .compatible = "infineon,tda38640"},
  55         { },
  56 };
  57 MODULE_DEVICE_TABLE(of, tda38640_of_match);
  58
  59 /* This is the driver that will be inserted */
  60 static struct i2c_driver tda38640_driver = {
  61         .driver = {
  62                 .name = "tda38640",
  63                 .of_match_table = of_match_ptr(tda38640_of_match),
  64         },
  65         .probe_new = tda38640_probe,
  66         .id_table = tda38640_id,
  67 };
  68
  69 module_i2c_driver(tda38640_driver);
  70
  71 MODULE_AUTHOR("Patrick Rudolph <[email protected]>");
  72 MODULE_DESCRIPTION("PMBus driver for Infineon TDA38640");
  73 MODULE_LICENSE("GPL");
  74 MODULE_IMPORT_NS(PMBUS);