linux-kernel - RE: [EXT] Re: [PATCH v3 2/2] dt-bindings: media: imx-jpeg: Assign slot for imx jpeg encoder/decoder

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Message-ID: <AM6PR04MB63418AE18D3D0ED98CCC1A0FE7FCA@AM6PR04MB6341.eurprd04.prod.outlook.com>
Date:   Mon, 25 Sep 2023 08:07:40 +0000
From:   Ming Qian <ming.qian@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "Mirela Rabulea (OSS)" <mirela.rabulea@....nxp.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>
CC:     "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "X.H. Bao" <xiahong.bao@....com>, Eagle Zhou <eagle.zhou@....com>,
        Tao Jiang <tao.jiang_2@....com>,
        dl-linux-imx <linux-imx@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [PATCH v3 2/2] dt-bindings: media: imx-jpeg: Assign
 slot for imx jpeg encoder/decoder

>From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>Sent: 2023年9月25日 16:02
>To: Ming Qian <ming.qian@....com>; Mirela Rabulea (OSS)
><mirela.rabulea@....nxp.com>; robh+dt@...nel.org; shawnguo@...nel.org
>Cc: krzysztof.kozlowski+dt@...aro.org; conor+dt@...nel.org;
>mchehab@...nel.org; hverkuil-cisco@...all.nl; s.hauer@...gutronix.de;
>kernel@...gutronix.de; festevam@...il.com; X.H. Bao
><xiahong.bao@....com>; Eagle Zhou <eagle.zhou@....com>; Tao Jiang
><tao.jiang_2@....com>; dl-linux-imx <linux-imx@....com>;
>devicetree@...r.kernel.org; linux-media@...r.kernel.org; linux-
>kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org
>Subject: [EXT] Re: [PATCH v3 2/2] dt-bindings: media: imx-jpeg: Assign slot for
>imx jpeg encoder/decoder
>
>Caution: This is an external email. Please take care when clicking links or
>opening attachments. When in doubt, report the message using the 'Report
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>
>
>On 25/09/2023 09:41, Ming Qian wrote:
>> There are total 4 slots available in the IP, and we only need to use
>> one slot in one os, assign a single slot, configure interrupt and
>> power domain only for 1 slot, not for the all 4 slots.
>
>No changelog and I do not see much of improvements. Do not ignore the
>feedback but respond to it or fix the patch. Really, what happened here?
>

Hi Krzysztof,
   What do you mean wrap commit message? Do you mean line wrapped at 75 columns?

  - The body of the explanation, line wrapped at 75 columns, which will
    be copied to the permanent changelog to describe this patch.


>Please wrap commit message according to Linux coding style / submission
>process (neither too early nor over the limit):
>https://elixir.b/
>ootlin.com%2Flinux%2Fv6.4-
>rc1%2Fsource%2FDocumentation%2Fprocess%2Fsubmitting-
>patches.rst%23L597&data=05%7C01%7Cming.qian%40nxp.com%7C9a78ca292
>a5744790db208dbbd9da8e3%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%
>7C0%7C638312257061769802%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
>LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%
>7C%7C&sdata=gDnMim2nrLIQflmmGu6cahz0prZV9iKslevv208u06U%3D&reser
>ved=0
>
>>
>> Signed-off-by: Ming Qian <ming.qian@....com>
>> ---
>>  .../bindings/media/nxp,imx8-jpeg.yaml         | 42 ++++++++-----------
>>  1 file changed, 18 insertions(+), 24 deletions(-)
>>
>> diff --git
>> a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
>> b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
>> index 3d9d1db37040..df381b21336d 100644
>> --- a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
>> +++ b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
>> @@ -32,25 +32,29 @@ properties:
>>      maxItems: 1
>>
>>    interrupts:
>> -    description: |
>> -      There are 4 slots available in the IP, which the driver may use
>> -      If a certain slot is used, it should have an associated interrupt
>> -      The interrupt with index i is assumed to be for slot i
>> -    minItems: 1               # At least one slot is needed by the driver
>> -    maxItems: 4               # The IP has 4 slots available for use
>> +    description:
>> +      Interrupt number for slot
>> +    maxItems: 1
>>
>>    power-domains:
>>      description:
>>        List of phandle and PM domain specifier as documented in
>>        Documentation/devicetree/bindings/power/power_domain.txt
>> -    minItems: 2               # Wrapper and 1 slot
>> -    maxItems: 5               # Wrapper and 4 slots
>> +    minItems: 1               # VPUMIX
>> +    maxItems: 2               # Wrapper and 1 slot
>> +
>> +  nxp,slot:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description: Integer number of slot index used.
>> +    minimum: 0
>> +    maximum: 3
>
>Nothing explains what is a slot and nothing explains why do you need this
>property.
>
>>
>>  required:
>>    - compatible
>>    - reg
>>    - interrupts
>>    - power-domains
>> +  - nxp,slot
>
>NAK, that's an ABI break.
>
>Best regards,
>Krzysztof