5482a978b9
mdio_mux_init() use the parameter dev for two distinct thing: 1) Have a device for all devm_ functions 2) Get device_node from it Since it is two distinct purpose, this patch add a parameter mdio_mux that is linked to task 2. This will also permit to register an of_node mdio-mux that lacks a direct owning device. For example a mdio-mux which is a subnode of a real device. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
32 lines
1,021 B
C
32 lines
1,021 B
C
/*
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* MDIO bus multiplexer framwork.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2011, 2012 Cavium, Inc.
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*/
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#ifndef __LINUX_MDIO_MUX_H
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#define __LINUX_MDIO_MUX_H
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#include <linux/device.h>
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#include <linux/phy.h>
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/* mdio_mux_init() - Initialize a MDIO mux
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* @dev The device owning the MDIO mux
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* @mux_node The device node of the MDIO mux
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* @switch_fn The function called for switching target MDIO child
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* mux_handle A pointer to a (void *) used internaly by mdio-mux
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* @data Private data used by switch_fn()
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* @mux_bus An optional parent bus (Other case are to use parent_bus property)
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*/
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int mdio_mux_init(struct device *dev,
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struct device_node *mux_node,
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int (*switch_fn) (int cur, int desired, void *data),
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void **mux_handle,
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void *data,
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struct mii_bus *mux_bus);
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void mdio_mux_uninit(void *mux_handle);
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#endif /* __LINUX_MDIO_MUX_H */
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