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net: mdio-mux: add mdio_mux parameter to mdio_mux_init()

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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>
This commit is contained in:
Corentin Labbe
2017-09-04 18:30:14 +02:00
committed by David S. Miller
parent fdade4f69e
commit 5482a978b9
5 changed files with 17 additions and 6 deletions
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9
include/linux/mdio-mux.h
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@@ -12,7 +12,16 @@
#include <linux/device.h>
#include <linux/phy.h>
/* mdio_mux_init() - Initialize a MDIO mux
* @dev The device owning the MDIO mux
* @mux_node The device node of the MDIO mux
* @switch_fn The function called for switching target MDIO child
* mux_handle A pointer to a (void *) used internaly by mdio-mux
* @data Private data used by switch_fn()
* @mux_bus An optional parent bus (Other case are to use parent_bus property)
*/
int mdio_mux_init(struct device *dev,
struct device_node *mux_node,
int (*switch_fn) (int cur, int desired, void *data),
void **mux_handle,
void *data,