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Message-ID: <bd356c60-7681-47e4-b45f-d25e70068b65@linaro.org>
Date: Tue, 9 Jan 2024 09:00:14 +0100
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Subject: Re: [PATCH 1/2] dt-bindings: fpga: Convert bridge binding to yaml
Content-Language: en-US
To: Xu Yilun <yilun.xu@linux.intel.com>, Michal Simek <michal.simek@amd.com>
Cc: linux-kernel@vger.kernel.org, monstr@monstr.eu, michal.simek@xilinx.com,
 git@xilinx.com, Conor Dooley <conor+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Moritz Fischer <mdf@kernel.org>, Rob Herring <robh+dt@kernel.org>,
 Tom Rix <trix@redhat.com>, Wu Hao <hao.wu@intel.com>,
 Xu Yilun <yilun.xu@intel.com>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@vger.kernel.org>, kishore Manne <nava.kishore.manne@amd.com>,
 "open list:FPGA MANAGER FRAMEWORK" <linux-fpga@vger.kernel.org>
References: <3100bbc4723643ec1ec7d4548e9ab353c856b564.1704470663.git.michal.simek@amd.com>
 <ab6a9a0e-ab03-4d35-9e43-c90c22dbcb1d@linaro.org>
 <4bcac34b-72a0-464e-91cd-d9e924073619@amd.com>
 <ZZzDHxnMPTuraS4D@yilunxu-OptiPlex-7050>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <ZZzDHxnMPTuraS4D@yilunxu-OptiPlex-7050>
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On 09/01/2024 04:53, Xu Yilun wrote:
> On Mon, Jan 08, 2024 at 10:16:17AM +0100, Michal Simek wrote:
>>
>>
>> On 1/8/24 10:09, Krzysztof Kozlowski wrote:
>>> On 05/01/2024 17:04, Michal Simek wrote:
>>>> Convert the generic fpga bridge DT binding to json-schema.
>>>>
>>>> Signed-off-by: Michal Simek <michal.simek@amd.com>
>>>
>>>> +$id: http://devicetree.org/schemas/fpga/fpga-bridge.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: FPGA Bridge
>>>> +
>>>> +maintainers:
>>>> +  - Michal Simek <michal.simek@amd.com>
>>>> +
>>>> +properties:
>>>> +  $nodename:
>>>> +    pattern: "^fpga-bridge(@.*)?$"
>>>
>>> Not sure, but maybe we need to allow fpga-bridge-1? Could we have more
>>> than one bridge on given system?
>>
>> Yilun: Any comment on this?
> 
> We can have more bridges, but IIUC people use fpga-bridge@0, fpga-bridge@0
> to identify them. So the expression is OK to me.

So you claim unit address thus reg with some sort of bus address is a
requirement? Then "?" is not correct in that pattern.

Best regards,
Krzysztof