linux-kernel - Re: [PATCH 1/2] doc: Add bindings document for Xilinx LogiCore PR Decoupler

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Message-ID: <efd9b44a-680b-e4fc-38bd-e126ef8b4094@xilinx.com>
Date:   Wed, 5 Apr 2017 08:26:33 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     Moritz Fischer <moritz.fischer@...us.com>,
        Rob Herring <robh@...nel.org>
CC:     Alan Tull <atull@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        <linux-fpga@...r.kernel.org>, Moritz Fischer <mdf@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        Sören Brinkmann <soren.brinkmann@...inx.com>,
        "Devicetree List" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/2] doc: Add bindings document for Xilinx LogiCore PR
 Decoupler

On 5.4.2017 01:36, Moritz Fischer wrote:
> On Thu, Mar 30, 2017 at 05:44:29PM -0500, Rob Herring wrote:
>> On Fri, Mar 24, 2017 at 10:33:20AM -0500, Alan Tull wrote:
>>> From: Moritz Fischer <mdf@...nel.org>
>>
>> Please use "dt-bindings: fpga: ..." for the subject.
>>
>>
>>>
>>> This adds the binding documentation for the Xilinx LogiCORE PR
>>> Decoupler soft core.
>>>
>>> Signed-off-by: Moritz Fischer <mdf@...nel.org>
>>> Signed-off-by: Michal Simek <michal.simek@...inx.com>
>>> Acked-by: Alan Tull <atull@...nel.org>
>>
>> I'm confused why you are sending these instead of Moritz? If it goes
>> through you, then it should have your S-o-B too.
> 
> Do you want me to resend this Alan (with Rob's suggestions)?
>>
>>> Cc: Sören Brinkmann <soren.brinkmann@...inx.com>
>>> Cc: linux-kernel@...r.kernel.org
>>> Cc: devicetree@...r.kernel.org
>>> ---
>>>  .../bindings/fpga/xilinx-pr-decoupler.txt          | 35 ++++++++++++++++++++++
>>>  1 file changed, 35 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
>>> new file mode 100644
>>> index 000000000000..2c527ac30398
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
>>> @@ -0,0 +1,35 @@
>>> +Xilinx LogiCORE Partial Reconfig Decoupler Softcore
>>> +
>>> +The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more
>>> +decouplers / fpga bridges.
>>> +The controller can decouple/disable the bridges which prevents signal
>>> +changes from passing through the bridge.  The controller can also
>>> +couple / enable the bridges which allows traffic to pass through the
>>> +bridge normally.
>>> +
>>> +The Driver supports only MMIO handling. A PR region can have multiple
>>> +PR Decouplers which can be handled independently or chained via decouple/
>>> +decouple_status signals.
>>> +
>>> +Required properties:
>>> +- compatible : Should contain "xlnx,pr-decoupler-1.00" or "xlnx,pr-decoupler"
>>
>> I'd drop xlnx,pr-decoupler, but in any case, it should not be OR rather
>> "followed by". Plus the example has both.
> 
> Michal wanted to have both, so I put both. Personally I don't care. I
> think they have some downstream stuff that relied on it.

Agree with Rob with using "followed by" instead of or.

M