linux-kernel - Re: [PATCH v2 1/2] dt: Document a compatible entry for MDIO ethernet Phys

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Message-ID: <CAGVrzcYz6m203EwT6exr06mpTdFQDQ3hHwq+WBhLa7zXnAFGAw@mail.gmail.com>
Date:	Fri, 31 Jan 2014 14:30:53 -0800
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:	Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] dt: Document a compatible entry for MDIO ethernet Phys

2014-01-31 Jason Gunthorpe <jgunthorpe@...idianresearch.com>:
> 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@...idianresearch.com>
> Acked-by: Rob Herring <robh@...nel.org>

Looks good, thanks!

Acked-by: Florian Fainelli <f.fainelli@...il.com>

> ---
>  Documentation/devicetree/bindings/net/phy.txt | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> Cc: devicetree@...r.kernel.org
>
> diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
> index 7cd18fb..989122c 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
> +     AAAA - The value of the 16 bit Phy Identifier 1 register as
> +            4 hex digits. This is the chip vendor OUI bits 3:18
> +     BBBB - The value of the 16 bit Phy Identifier 2 register as
> +            4 hex digits. This is the chip vendor OUI bits 19:24,
> +            followed by 10 bits of a vendor specific ID.
> +
>  Example:
>
>  ethernet-phy@0 {
> -       compatible = "ethernet-phy-ieee802.3-c22";
> +       compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22";
>         linux,phandle = <2452000>;
>         interrupt-parent = <40000>;
>         interrupts = <35 1>;
> --
> 1.8.1.2
>
> --
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-- 
Florian
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