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Add a PMBus driver for the Analog Devices MAX20860A step-down DC-DC switching regulator. The MAX20860A provides monitoring of input/output voltage, output current, and temperature via the PMBus interface using linear data format. Optional regulator support is available via CONFIG_SENSORS_MAX20860A_REGULATOR. Signed-off-by: Syed Arif <arif.syed@hpe.com> Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260601184516.919488-3-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Hardware monitoring driver for Analog Devices MAX20860A
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*
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* SPDX-FileCopyrightText: Copyright Hewlett Packard Enterprise Development LP
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*/
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#include <linux/i2c.h>
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#include <linux/module.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_MAX20860A_REGULATOR)
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static const struct regulator_desc max20860a_reg_desc[] = {
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PMBUS_REGULATOR_ONE("vout"),
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};
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#endif
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static struct pmbus_driver_info max20860a_info = {
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.pages = 1,
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.format[PSC_VOLTAGE_IN] = linear,
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.format[PSC_VOLTAGE_OUT] = linear,
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.format[PSC_CURRENT_OUT] = linear,
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.format[PSC_TEMPERATURE] = linear,
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.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT |
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PMBUS_HAVE_STATUS_VOUT |
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PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
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PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
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PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_INPUT,
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#if IS_ENABLED(CONFIG_SENSORS_MAX20860A_REGULATOR)
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.num_regulators = 1,
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.reg_desc = max20860a_reg_desc,
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#endif
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};
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static int max20860a_probe(struct i2c_client *client)
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{
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return pmbus_do_probe(client, &max20860a_info);
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}
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static const struct i2c_device_id max20860a_id[] = {
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{"max20860a"},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, max20860a_id);
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static const struct of_device_id max20860a_of_match[] = {
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{ .compatible = "adi,max20860a" },
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{}
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};
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MODULE_DEVICE_TABLE(of, max20860a_of_match);
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static struct i2c_driver max20860a_driver = {
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.driver = {
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.name = "max20860a",
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.of_match_table = max20860a_of_match,
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},
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.probe = max20860a_probe,
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.id_table = max20860a_id,
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};
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module_i2c_driver(max20860a_driver);
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MODULE_AUTHOR("Syed Arif <arif.syed@hpe.com>");
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MODULE_AUTHOR("Sanman Pradhan <psanman@juniper.net>");
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MODULE_DESCRIPTION("PMBus driver for Analog Devices MAX20860A");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS("PMBUS");
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