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90 lines
2.4 KiB
90 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Hardware monitoring driver for Infineon IR38064 |
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* |
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* Copyright (c) 2017 Google Inc |
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* |
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* VOUT_MODE is not supported by the device. The driver fakes VOUT linear16 |
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* mode with exponent value -8 as direct mode with m=256/b=0/R=0. |
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* |
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* The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however |
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* this driver does not currently support them. |
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*/ |
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#include <linux/err.h> |
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#include <linux/i2c.h> |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/regulator/driver.h> |
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#include "pmbus.h" |
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#if IS_ENABLED(CONFIG_SENSORS_IR38064_REGULATOR) |
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static const struct regulator_desc ir38064_reg_desc[] = { |
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PMBUS_REGULATOR("vout", 0), |
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}; |
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#endif /* CONFIG_SENSORS_IR38064_REGULATOR */ |
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static struct pmbus_driver_info ir38064_info = { |
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.pages = 1, |
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.format[PSC_VOLTAGE_IN] = linear, |
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.format[PSC_VOLTAGE_OUT] = direct, |
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.format[PSC_CURRENT_OUT] = linear, |
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.format[PSC_POWER] = linear, |
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.format[PSC_TEMPERATURE] = linear, |
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.m[PSC_VOLTAGE_OUT] = 256, |
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.b[PSC_VOLTAGE_OUT] = 0, |
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.R[PSC_VOLTAGE_OUT] = 0, |
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.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT |
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| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
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| PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
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| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
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| PMBUS_HAVE_POUT, |
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#if IS_ENABLED(CONFIG_SENSORS_IR38064_REGULATOR) |
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.num_regulators = 1, |
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.reg_desc = ir38064_reg_desc, |
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#endif |
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}; |
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static int ir38064_probe(struct i2c_client *client) |
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{ |
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return pmbus_do_probe(client, &ir38064_info); |
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} |
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static const struct i2c_device_id ir38064_id[] = { |
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{"ir38060", 0}, |
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{"ir38064", 0}, |
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{"ir38164", 0}, |
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{"ir38263", 0}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(i2c, ir38064_id); |
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static const struct of_device_id __maybe_unused ir38064_of_match[] = { |
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{ .compatible = "infineon,ir38060" }, |
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{ .compatible = "infineon,ir38064" }, |
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{ .compatible = "infineon,ir38164" }, |
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{ .compatible = "infineon,ir38263" }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(of, ir38064_of_match); |
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/* This is the driver that will be inserted */ |
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static struct i2c_driver ir38064_driver = { |
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.driver = { |
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.name = "ir38064", |
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.of_match_table = of_match_ptr(ir38064_of_match), |
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}, |
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.probe_new = ir38064_probe, |
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.id_table = ir38064_id, |
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}; |
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module_i2c_driver(ir38064_driver); |
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MODULE_AUTHOR("Maxim Sloyko <[email protected]>"); |
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MODULE_DESCRIPTION("PMBus driver for Infineon IR38064 and compatible chips"); |
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MODULE_LICENSE("GPL"); |
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MODULE_IMPORT_NS(PMBUS);
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