linux/drivers/net/mdio/acpi_mdio.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ACPI helpers for the MDIO (Ethernet PHY) API
 *
 * This file provides helper functions for extracting PHY device information
 * out of the ACPI ASL and using it to populate an mii_bus.
 */

#include <linux/acpi.h>
#include <linux/acpi_mdio.h>
#include <linux/bits.h>
#include <linux/dev_printk.h>
#include <linux/fwnode_mdio.h>
#include <linux/module.h>
#include <linux/types.h>

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

/**
 * __acpi_mdiobus_register - Register mii_bus and create PHYs from the ACPI ASL.
 * @mdio: pointer to mii_bus structure
 * @fwnode: pointer to fwnode of MDIO bus. This fwnode is expected to represent
 * @owner: module owning this @mdio object.
 * an ACPI device object corresponding to the MDIO bus and its children are
 * expected to correspond to the PHY devices on that bus.
 *
 * This function registers the mii_bus structure and registers a phy_device
 * for each child node of @fwnode.
 */
int __acpi_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode,
			    struct module *owner)
{ … }
EXPORT_SYMBOL(…);