Re: [PATCH RFT 1/2] phylib: add device reset GPIO support

From: Andrew Lunn
Date: Fri May 13 2016 - 16:44:54 EST


> >Another issue is that on some boards we have one reset line tied to
> >multiple PHYs.How do we prevent multiple resets being taking place when each of
> >the PHYs are registered?
>
> My patch just doesn't address this case -- it's about the
> individual resets only.

This actually needs to be addresses a layer above. What you have is a
bus reset, not a device reset. So the gpio line is associated to the
mdio bus, not a PHY. Either your MDIO driver needs to handle the gpio
line, or in __mdio_register(), before it starts looking at the
children.

Andrew