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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b9fa0a3acf
Add support for VID protocol detection per page bases, instead of detecting it based on "PMBU_VOUT" readout from page 0 for all the pages supported by particular device. The reason that some devices allows to configure different VID modes per page within the same device. Patch modifies the field "vrm_version" within the structure "pmbus_driver_info" to be per page array. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Link: https://lore.kernel.org/r/20200113150841.17670-2-vadimp@mellanox.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Hardware monitoring driver for Maxim MAX20751
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*
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* Copyright (c) 2015 Guenter Roeck
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include "pmbus.h"
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static struct pmbus_driver_info max20751_info = {
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.pages = 1,
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.format[PSC_VOLTAGE_IN] = linear,
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.format[PSC_VOLTAGE_OUT] = vid,
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.vrm_version[0] = vr12,
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.format[PSC_TEMPERATURE] = linear,
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.format[PSC_CURRENT_OUT] = linear,
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.format[PSC_POWER] = linear,
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.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
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PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
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PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
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PMBUS_HAVE_POUT,
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};
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static int max20751_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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return pmbus_do_probe(client, id, &max20751_info);
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}
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static const struct i2c_device_id max20751_id[] = {
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{"max20751", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, max20751_id);
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static struct i2c_driver max20751_driver = {
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.driver = {
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.name = "max20751",
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},
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.probe = max20751_probe,
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.remove = pmbus_do_remove,
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.id_table = max20751_id,
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};
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module_i2c_driver(max20751_driver);
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MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
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MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751");
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MODULE_LICENSE("GPL");
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