195b80c48SPatrick Rudolph // SPDX-License-Identifier: GPL-2.0+
295b80c48SPatrick Rudolph /*
395b80c48SPatrick Rudolph * Hardware monitoring driver for Infineon TDA38640
495b80c48SPatrick Rudolph *
595b80c48SPatrick Rudolph * Copyright (c) 2023 9elements GmbH
695b80c48SPatrick Rudolph *
795b80c48SPatrick Rudolph */
895b80c48SPatrick Rudolph
995b80c48SPatrick Rudolph #include <linux/err.h>
1095b80c48SPatrick Rudolph #include <linux/i2c.h>
1195b80c48SPatrick Rudolph #include <linux/init.h>
1295b80c48SPatrick Rudolph #include <linux/kernel.h>
1395b80c48SPatrick Rudolph #include <linux/module.h>
1495b80c48SPatrick Rudolph #include <linux/regulator/driver.h>
1595b80c48SPatrick Rudolph #include "pmbus.h"
1695b80c48SPatrick Rudolph
1795b80c48SPatrick Rudolph static const struct regulator_desc __maybe_unused tda38640_reg_desc[] = {
1895b80c48SPatrick Rudolph PMBUS_REGULATOR("vout", 0),
1995b80c48SPatrick Rudolph };
2095b80c48SPatrick Rudolph
2195b80c48SPatrick Rudolph static struct pmbus_driver_info tda38640_info = {
2295b80c48SPatrick Rudolph .pages = 1,
2395b80c48SPatrick Rudolph .format[PSC_VOLTAGE_IN] = linear,
2495b80c48SPatrick Rudolph .format[PSC_VOLTAGE_OUT] = linear,
2595b80c48SPatrick Rudolph .format[PSC_CURRENT_OUT] = linear,
2695b80c48SPatrick Rudolph .format[PSC_CURRENT_IN] = linear,
2795b80c48SPatrick Rudolph .format[PSC_POWER] = linear,
2895b80c48SPatrick Rudolph .format[PSC_TEMPERATURE] = linear,
2995b80c48SPatrick Rudolph
3095b80c48SPatrick Rudolph .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
3195b80c48SPatrick Rudolph | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
3295b80c48SPatrick Rudolph | PMBUS_HAVE_IIN
3395b80c48SPatrick Rudolph | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
3495b80c48SPatrick Rudolph | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
3595b80c48SPatrick Rudolph | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN,
3695b80c48SPatrick Rudolph #if IS_ENABLED(CONFIG_SENSORS_TDA38640_REGULATOR)
3795b80c48SPatrick Rudolph .num_regulators = 1,
3895b80c48SPatrick Rudolph .reg_desc = tda38640_reg_desc,
3995b80c48SPatrick Rudolph #endif
4095b80c48SPatrick Rudolph };
4195b80c48SPatrick Rudolph
tda38640_probe(struct i2c_client * client)4295b80c48SPatrick Rudolph static int tda38640_probe(struct i2c_client *client)
4395b80c48SPatrick Rudolph {
4495b80c48SPatrick Rudolph return pmbus_do_probe(client, &tda38640_info);
4595b80c48SPatrick Rudolph }
4695b80c48SPatrick Rudolph
4795b80c48SPatrick Rudolph static const struct i2c_device_id tda38640_id[] = {
4895b80c48SPatrick Rudolph {"tda38640", 0},
4995b80c48SPatrick Rudolph {}
5095b80c48SPatrick Rudolph };
5195b80c48SPatrick Rudolph MODULE_DEVICE_TABLE(i2c, tda38640_id);
5295b80c48SPatrick Rudolph
5395b80c48SPatrick Rudolph static const struct of_device_id __maybe_unused tda38640_of_match[] = {
5495b80c48SPatrick Rudolph { .compatible = "infineon,tda38640"},
5595b80c48SPatrick Rudolph { },
5695b80c48SPatrick Rudolph };
5795b80c48SPatrick Rudolph MODULE_DEVICE_TABLE(of, tda38640_of_match);
5895b80c48SPatrick Rudolph
5995b80c48SPatrick Rudolph /* This is the driver that will be inserted */
6095b80c48SPatrick Rudolph static struct i2c_driver tda38640_driver = {
6195b80c48SPatrick Rudolph .driver = {
6295b80c48SPatrick Rudolph .name = "tda38640",
6395b80c48SPatrick Rudolph .of_match_table = of_match_ptr(tda38640_of_match),
6495b80c48SPatrick Rudolph },
65*1975d167SUwe Kleine-König .probe = tda38640_probe,
6695b80c48SPatrick Rudolph .id_table = tda38640_id,
6795b80c48SPatrick Rudolph };
6895b80c48SPatrick Rudolph
6995b80c48SPatrick Rudolph module_i2c_driver(tda38640_driver);
7095b80c48SPatrick Rudolph
7195b80c48SPatrick Rudolph MODULE_AUTHOR("Patrick Rudolph <patrick.rudolph@9elements.com>");
7295b80c48SPatrick Rudolph MODULE_DESCRIPTION("PMBus driver for Infineon TDA38640");
7395b80c48SPatrick Rudolph MODULE_LICENSE("GPL");
7495b80c48SPatrick Rudolph MODULE_IMPORT_NS(PMBUS);
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