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Date:   Sat, 23 May 2020 19:44:59 +0100
From:   Russell King - ARM Linux admin <>
To:     Jeremy Linton <>
Subject: Re: [RFC 07/11] net: phy: reset invalid phy reads of 0 back to

On Fri, May 22, 2020 at 04:30:55PM -0500, Jeremy Linton wrote:
> MMD's in the device list sometimes return 0 for their id.
> When that happens lets reset the id back to 0xfffffff so
> that we don't get a stub device created for it.
> This is a questionable commit, but i'm tossing it out
> there along with the comment that reading the spec
> seems to indicate that maybe there are further registers
> that could be probed in an attempt to resolve some futher
> "bad" phys. It sort of comes down to do we want unused phy
> devices floating around (potentially unmatched in dt) or
> do we want to cut them off early and let DT create them
> directly.

I'm not sure what you mean "stub device" or "unused phy devices
floating around" - the individual MMDs are not treated as separate
"phy devices", but as one PHY device as a whole.

RMK's Patch system:
FTTC for 0.8m (est. 1762m) line in suburbia: sync at 13.1Mbps down 424kbps up

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