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SubjectRe: [PATCH] phylib: Make PHYs children of their MDIO bus, not the bus' parent.
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Hello.

On 08/22/2015 02:16 AM, David Daney wrote:

> From: David Daney <david.daney@cavium.com>
>
> commit 18ee49ddb0d2 ("phylib: rename mii_bus::dev to mii_bus::parent")
> changed the parent of PHY devices from the bus to the bus parent.
>
> Then, commit 4dea547fef1b ("phylib: rework to prepare for OF
> registration of PHYs") moved the code into phy_device.c
>
> At this point, it is somewhat unclear why the change was seen as
> necessary. But, when we look at the device model tree in
> /sys/devices, it is clearly incorrect. The PHYs should be children of
> their MDIO bus.
>
> Change the PHY's parent device to be the MDIO bus device.
>
> Cc: Lennert Buytenhek <buytenh@wantstofly.org>
> Cc: Grant Likely <grant.likely@secretlab.ca>
> Signed-off-by: David Daney <david.daney@cavium.com>
> ---
> drivers/net/phy/phy_device.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
> index 0302483..55f0178 100644
> --- a/drivers/net/phy/phy_device.c
> +++ b/drivers/net/phy/phy_device.c
> @@ -176,7 +176,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
> if (c45_ids)
> dev->c45_ids = *c45_ids;
> dev->bus = bus;
> - dev->dev.parent = bus->parent;
> + dev->dev.parent = &bus->dev;
> dev->dev.bus = &mdio_bus_type;
> dev->irq = bus->irq != NULL ? bus->irq[addr] : PHY_POLL;
> dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr);

This patch makes my sh_eth driver fail to connect to PHY usinjg
of_phy_connect(). (The ravb driver fails too but for some other reason.)

MBR, Sergei



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