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net: mdio: Add ACPI support code for mdio

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Define acpi_mdiobus_register() to Register mii_bus and create PHYs for
each ACPI child node.

Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Grant Likely <grant.likely@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Calvin Johnson 2021-06-11 13:53:57 +03:00 • committed by David S. Miller
parent 7ec16433cf
commit 803ca24d2f
5 changed files with 93 additions and 0 deletions
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26
include/linux/acpi_mdio.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* ACPI helper for the MDIO (Ethernet PHY) API
*/
#ifndef __LINUX_ACPI_MDIO_H
#define __LINUX_ACPI_MDIO_H
#include <linux/phy.h>
#if IS_ENABLED(CONFIG_ACPI_MDIO)
int acpi_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode);
#else /* CONFIG_ACPI_MDIO */
static inline int
acpi_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode)
{
/*
* Fall back to mdiobus_register() function to register a bus.
* This way, we don't have to keep compat bits around in drivers.
*/
return mdiobus_register(mdio);
}
#endif
#endif /* __LINUX_ACPI_MDIO_H */