linux/drivers/hwmon/pmbus/delta-ahe50dc-fan.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Delta AHE-50DC power shelf fan control module driver
 *
 * Copyright 2021 Zev Weiss <[email protected]>
 */

#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pmbus.h>

#include "pmbus.h"

#define AHE50DC_PMBUS_READ_TEMP4 …

static int ahe50dc_fan_write_byte(struct i2c_client *client, int page, u8 value)
{ … }

static int ahe50dc_fan_read_word_data(struct i2c_client *client, int page, int phase, int reg)
{ … }

static struct pmbus_driver_info ahe50dc_fan_info = …;

/*
 * CAPABILITY returns 0xff, which appears to be this device's way indicating
 * it doesn't support something (and if we enable I2C_CLIENT_PEC on seeing bit
 * 7 being set it generates bad PECs, so let's not go there).
 */
static struct pmbus_platform_data ahe50dc_fan_data = …;

static int ahe50dc_fan_probe(struct i2c_client *client)
{ … }

static const struct i2c_device_id ahe50dc_fan_id[] = …;
MODULE_DEVICE_TABLE(i2c, ahe50dc_fan_id);

static const struct of_device_id __maybe_unused ahe50dc_fan_of_match[] = …;
MODULE_DEVICE_TABLE(of, ahe50dc_fan_of_match);

static struct i2c_driver ahe50dc_fan_driver = …;
module_i2c_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_IMPORT_NS(…);