linux-kernel - Re: [PATCH v3,1/3] media: dt-bindings: media: mediatek: vcodec: Fix clock num not correctly

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Message-ID: <f98a2f4a-737c-fef5-551b-04a92d255d0e@collabora.com>
Date:   Fri, 2 Dec 2022 12:37:16 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>
Cc:     Chen-Yu Tsai <wenst@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v3,1/3] media: dt-bindings: media: mediatek: vcodec: Fix
 clock num not correctly

Il 02/12/22 00:57, Rob Herring ha scritto:
> On Thu, Dec 01, 2022 at 08:15:22PM +0800, Yunfei Dong wrote:
>> From: Yunfei Dong <yunfei.dong@...iatek.corp-partner.google.com>
>>
>> mt8195 and mt8192 have different clock numbers, can't write 'clocks' and
>> 'clock-names' with const value.
>>
>> Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
>> ---
>> Reference series:
>> [1]: v5 of this series is presend by Allen-KH Cheng.
>>       message-id: 20221128143832.25584-4-allen-kh.cheng@...iatek.com
>> ---
>>   .../bindings/media/mediatek,vcodec-subdev-decoder.yaml   | 9 +++------
>>   1 file changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
>> index 7c5b4a91c59b..09781ef02193 100644
>> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
>> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
>> @@ -110,15 +110,12 @@ patternProperties:
>>             Refer to bindings/iommu/mediatek,iommu.yaml.
>>   
>>         clocks:
>> +        minItems: 1
>>           maxItems: 5
>>   
>>         clock-names:
>> -        items:
>> -          - const: sel
>> -          - const: soc-vdec
>> -          - const: soc-lat
>> -          - const: vdec
>> -          - const: top
>> +        minItems: 1
>> +        maxItems: 5
> 
> Names need to be defined. This is a step backwards.
> 

I was thinking the same but wanted to wait for someone else's opinion before.

Yunfei, this would be...

- if:
     properties:
       compatible:
         .... mt8192
   then:
      clock-names:
         .... whatever we have

- if:
    properties... blah mt8195
   then:
     clock-names:
         ..... new ones

...you should know already, but I'm just trying to speed up things here.

Cheers,
Angelo

> Rob
> 
>>   
>>         assigned-clocks:
>>           maxItems: 1
>> -- 
>> 2.18.0
>>
>>