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SubjectRe: [PATCH] net: phy: allow scanning busses with missing phys
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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Tue, 24 Apr 2018 18:09:04 +0200

> Some MDIO busses will error out when trying to read a phy address with no
> phy present at that address. In that case, probing the bus will fail
> because __mdiobus_register() is scanning the bus for all possible phys
> addresses.
>
> In case MII_PHYSID1 returns -EIO or -ENODEV, consider there is no phy at
> this address and set the phy ID to 0xffffffff which is then properly
> handled in get_phy_device().
>
> Suggested-by: Andrew Lunn <andrew@lunn.ch>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Applied, thank you.

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