// SPDX-License-Identifier: GPL-2.0+ /* * Hardware monitoring driver for Infineon IR38064 * * Copyright (c) 2017 Google Inc * * VOUT_MODE is not supported by the device. The driver fakes VOUT linear16 * mode with exponent value -8 as direct mode with m=256/b=0/R=0. * * The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however * this driver does not currently support them. */ #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include "pmbus.h" static struct pmbus_driver_info ir38064_info = { .pages = 1, .format[PSC_VOLTAGE_IN] = linear, .format[PSC_VOLTAGE_OUT] = direct, .format[PSC_CURRENT_OUT] = linear, .format[PSC_POWER] = linear, .format[PSC_TEMPERATURE] = linear, .m[PSC_VOLTAGE_OUT] = 256, .b[PSC_VOLTAGE_OUT] = 0, .R[PSC_VOLTAGE_OUT] = 0, .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, }; static int ir38064_probe(struct i2c_client *client) { return pmbus_do_probe(client, &ir38064_info); } static const struct i2c_device_id ir38064_id[] = { {"ir38064", 0}, {} }; MODULE_DEVICE_TABLE(i2c, ir38064_id); /* This is the driver that will be inserted */ static struct i2c_driver ir38064_driver = { .driver = { .name = "ir38064", }, .probe_new = ir38064_probe, .id_table = ir38064_id, }; module_i2c_driver(ir38064_driver); MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon IR38064"); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS(PMBUS);