linux-kernel - Re: [PATCH v2 2/9] dt-bindings: mailbox: Add property for CMDQ secure driver

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Date:   Sat, 28 Oct 2023 11:10:28 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        "jassisinghbrar@...il.com" <jassisinghbrar@...il.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Singo Chang (張興國) 
        <Singo.Chang@...iatek.com>,
        Johnson Wang (王聖鑫) 
        <Johnson.Wang@...iatek.com>,
        Jason-ch Chen (陳建豪) 
        <Jason-ch.Chen@...iatek.com>,
        Shawn Sung (宋孝謙) 
        <Shawn.Sung@...iatek.com>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        "jkardatzke@...gle.com" <jkardatzke@...gle.com>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>
Subject: Re: [PATCH v2 2/9] dt-bindings: mailbox: Add property for CMDQ secure
 driver

On 24/10/2023 18:37, Jason-JH Lin (林睿祥) wrote:
> Hi Krzysztof,
> 
> Thanks for the reviews.
> 
> On Mon, 2023-10-23 at 09:49 +0200, Krzysztof Kozlowski wrote:
>>  	 
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>  On 23/10/2023 06:37, Jason-JH.Lin wrote:
>>> Add mboxes to define a GCE loopping thread as a secure irq handler.
>>> Add mediatek,gce-events to define a GCE event siganl sent from CMDQ
>>> TA driver in secure world as a secure irq.
>>>
>>> These 2 properties are required for CMDQ secure driver.
>>>
>>> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
>>> ---
>>>  .../bindings/mailbox/mediatek,gce-mailbox.yaml         | 10
>> ++++++++++
>>>  1 file changed, 10 insertions(+)
>>>
>>> diff --git
>> a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml 
>> b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
>>> index cef9d7601398..65fb93bb53b6 100644
>>> --- a/Documentation/devicetree/bindings/mailbox/mediatek,gce-
>> mailbox.yaml
>>> +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-
>> mailbox.yaml
>>> @@ -49,6 +49,16 @@ properties:
>>>      items:
>>>        - const: gce
>>>  
>>> +  mboxes:
>>> +    maxItems: 1
>>> +
>>> +  mediatek,gce-events:
>>> +    description:
>>> +      The event id which is mapping to the specific hardware event
>> signal
>>> +      to gce. The event id is defined in the gce header
>>> +      include/dt-bindings/gce/<chip>-gce.h of each chips.
>>> +    $ref: /schemas/types.yaml#/definitions/uint32-array
>>
>> Nothing improved.
>>
>> This is a friendly reminder during the review process.
>>
>> It seems my previous comments were not fully addressed. Maybe my
> 
> Sorry, I didn't find your comments in the previous patch here:
> 
> https://patchwork.kernel.org/project/linux-mediatek/patch/20230918192204.32263-2-jason-jh.lin@mediatek.com/
> 
> Could you please comment again?
> Thank you very much.

Please implement Rob's feedback.
> 
> 
> And I do see Rob's comment, so I sync the mediatek,gce-events property
> definition from other yaml where used this property.
> 
> Should I also modify the definition of mediatek,gce-events property to
> reference to mediatek,gce-mailbox.yaml for other yaml?

You need single definition in one of the bindings or in shared bindings.
Depends on the users of this property.


Best regards,
Krzysztof