netdev - Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation

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Date:   Wed, 30 Aug 2017 14:15:32 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Baruch Siach <baruch@...s.co.il>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Russell King <rmk+kernel@....linux.org.uk>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 2/3] dt-binding: net: sfp binding documentation

On 8/30/2017 2:11 PM, Baruch Siach wrote:

> On Wed, Aug 30, 2017 at 02:04:11PM +0300, Sergei Shtylyov wrote:
>> On 8/30/2017 12:51 PM, Baruch Siach wrote:
>>
>>> Add device-tree binding documentation SFP transceivers. Support for SFP
>>> transceivers has been recently introduced (drivers/net/phy/sfp.c).
>>>
>>> Signed-off-by: Baruch Siach <baruch@...s.co.il>
>>> ---
>>> v2:
>>>     Rename -gpio properties to -gpios
>>>     Rename the rate-select-gpio property to rate-select0-gpios
>>>     Add the rate-select1-gpios property
>>>     Add examples
>>> ---
>>>    Documentation/devicetree/bindings/net/sff,sfp.txt | 74 +++++++++++++++++++++++
>>>    1 file changed, 74 insertions(+)
>>>    create mode 100644 Documentation/devicetree/bindings/net/sff,sfp.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/sff,sfp.txt b/Documentation/devicetree/bindings/net/sff,sfp.txt
>>> new file mode 100644
>>> index 000000000000..1d9c786d6287
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/net/sff,sfp.txt
>>> @@ -0,0 +1,74 @@
>>> +Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
>>> +Transceiver
>>> +
>>> +Required properties:
>>> +
>>> +- compatible : must be "sff,sfp"
>>> +
>>> +Optional Properties:
>>> +
>>> +- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial
>>> +  interface
>>> +
>>> +- moddef0-gpios : phandle of the MOD-DEF0 (AKA Mod_ABS) module presence input
>>> +  gpio signal
>>
>>     Your example shows there's GPIO phandle *and* specifier.
> 
> Would "GPIO specifier" be enough here?

    No, specifier is the cells following GPIO (or any other) phandle.

> [...]

MBR, Sergei