cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mp5023.c (1586B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Driver for MPS MP5023 Hot-Swap Controller
      4 */
      5
      6#include <linux/i2c.h>
      7#include <linux/module.h>
      8#include <linux/of_device.h>
      9#include "pmbus.h"
     10
     11static struct pmbus_driver_info mp5023_info = {
     12	.pages = 1,
     13
     14	.format[PSC_VOLTAGE_IN] = direct,
     15	.format[PSC_VOLTAGE_OUT] = direct,
     16	.format[PSC_CURRENT_OUT] = direct,
     17	.format[PSC_POWER] = direct,
     18	.format[PSC_TEMPERATURE] = direct,
     19
     20	.m[PSC_VOLTAGE_IN] = 32,
     21	.b[PSC_VOLTAGE_IN] = 0,
     22	.R[PSC_VOLTAGE_IN] = 0,
     23	.m[PSC_VOLTAGE_OUT] = 32,
     24	.b[PSC_VOLTAGE_OUT] = 0,
     25	.R[PSC_VOLTAGE_OUT] = 0,
     26	.m[PSC_CURRENT_OUT] = 16,
     27	.b[PSC_CURRENT_OUT] = 0,
     28	.R[PSC_CURRENT_OUT] = 0,
     29	.m[PSC_POWER] = 1,
     30	.b[PSC_POWER] = 0,
     31	.R[PSC_POWER] = 0,
     32	.m[PSC_TEMPERATURE] = 2,
     33	.b[PSC_TEMPERATURE] = 0,
     34	.R[PSC_TEMPERATURE] = 0,
     35
     36	.func[0] =
     37		PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN |
     38		PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT |
     39		PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
     40};
     41
     42static int mp5023_probe(struct i2c_client *client)
     43{
     44	return pmbus_do_probe(client, &mp5023_info);
     45}
     46
     47static const struct of_device_id __maybe_unused mp5023_of_match[] = {
     48	{ .compatible = "mps,mp5023", },
     49	{}
     50};
     51
     52MODULE_DEVICE_TABLE(of, mp5023_of_match);
     53
     54static struct i2c_driver mp5023_driver = {
     55	.driver = {
     56		   .name = "mp5023",
     57		   .of_match_table = of_match_ptr(mp5023_of_match),
     58	},
     59	.probe_new = mp5023_probe,
     60};
     61
     62module_i2c_driver(mp5023_driver);
     63
     64MODULE_AUTHOR("Howard Chiu <howard.chiu@quantatw.com>");
     65MODULE_DESCRIPTION("PMBus driver for MPS MP5023 HSC");
     66MODULE_LICENSE("GPL");
     67MODULE_IMPORT_NS(PMBUS);