Re: [PATCH] dt: Document a compatible entry for MDIO ethernet Phys

From: Rob Herring
Date: Wed Jan 08 2014 - 13:37:13 EST


On Tue, Dec 10, 2013 at 1:39 PM, Jason Gunthorpe
<jgunthorpe@xxxxxxxxxxxxxxxxxxxx> wrote:
> This describes a compatible entry of the form:
> ethernet-phy-idAAAA,BBBB
> Which is modelled after the PCI structured compatible entry
> (pciVVVV,DDDD.SSSS.ssss.RR)
>
> If present the OF core will be able to use this information to
> directly create the correct phy without auto probing the bus.
>
> Signed-off-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/net/phy.txt | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> Patch to parse this compatible string to follow if this binding is
> acceptable.

One minor comment below, otherwise:

Acked-by: Rob Herring <robh@xxxxxxxxxx>

> Please see
>
> http://www.spinics.net/lists/devicetree/msg13175.html
>
> For discussion and a conceptual parsing patch.
>
> diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
> index 7cd18fb..d70b535 100644
> --- a/Documentation/devicetree/bindings/net/phy.txt
> +++ b/Documentation/devicetree/bindings/net/phy.txt
> @@ -23,10 +23,18 @@ Optional Properties:
> assume clause 22. The compatible list may also contain other
> elements.
>
> + If the phy's identifier is known then the list may contain an entry
> + of the form: "ethernet-phy-idAAAA,BBBB" where

I think this should be a period rather than a comma as we are not
separating a vendor ID from product ID.

Rob
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