linux-kernel - Re: [PATCH 1/4] dt-bindings: media: qcom,sm8550-iris: update power domain name

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Message-ID: <CALT56yP5mh4QjhOEHh0x2s_+BWWXH0fPM7r7YVvx+DEgWZ0MCw@mail.gmail.com>
Date: Wed, 12 Mar 2025 00:13:14 +0200
From: Dmitry Baryshkov <dbaryshkov@...il.com>
To: Vikash Garodia <quic_vgarodia@...cinc.com>
Cc: Dmitry Baryshkov <lumag@...nel.org>, Dikshita Agarwal <quic_dikshita@...cinc.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Mauro Carvalho Chehab <mchehab@...nel.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: media: qcom,sm8550-iris: update power
 domain name

On Tue, 11 Mar 2025 at 21:19, Vikash Garodia <quic_vgarodia@...cinc.com> wrote:
>
>
> On 3/11/2025 9:05 PM, Dmitry Baryshkov wrote:
> > On Tue, Mar 11, 2025 at 08:41:01PM +0530, Vikash Garodia wrote:
> >>
> >> On 3/11/2025 8:37 PM, Dmitry Baryshkov wrote:
> >>> On Tue, Mar 11, 2025 at 05:33:53PM +0530, Vikash Garodia wrote:
> >>>> Not all platforms has a collapsible mx, so use the more generic naming
> >>>> of mx in the binding.
> >>>
> >>> I guess, it wasn't even tested...
> >> Not sure what made you guess so, let me check why my binding checker did not
> >> catch the bot reported warning.
> >
> > Obvious: you are changing the bindings in a non-backwards compatible
> > way, but you are not changing the example in the same file (and
> > obviously you are not changing the DTs), which means that this wasn't
> > tested.
> >
> > Hint: you can use enum [mx, mxc] instead of const. That would make it
> > backwards compatible.
> Currently there are no user of this binding. Given that either of MX or MXC are
> same connection to video hardware, just that one is collapsible, it would be
> good to replace the existing element instead of enum.

This obviously should go to the commit message.

>
> Regards,
> Vikash
> >
> >> Regards,
> >> Vikash
> >>>
> >>>>
> >>>> Signed-off-by: Vikash Garodia <quic_vgarodia@...cinc.com>
> >>>> ---
> >>>>  Documentation/devicetree/bindings/media/qcom,sm8550-iris.yaml | 2 +-
> >>>>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>>>
> >>>> diff --git a/Documentation/devicetree/bindings/media/qcom,sm8550-iris.yaml b/Documentation/devicetree/bindings/media/qcom,sm8550-iris.yaml
> >>>> index e424ea84c211f473a799481fd5463a16580187ed..440a0d7cdfe19a1ccedefc207d96b26eed5d6630 100644
> >>>> --- a/Documentation/devicetree/bindings/media/qcom,sm8550-iris.yaml
> >>>> +++ b/Documentation/devicetree/bindings/media/qcom,sm8550-iris.yaml
> >>>> @@ -28,7 +28,7 @@ properties:
> >>>>      items:
> >>>>        - const: venus
> >>>>        - const: vcodec0
> >>>> -      - const: mxc
> >>>> +      - const: mx
> >>>>        - const: mmcx
> >>>>
> >>>>    clocks:
> >>>>
> >>>> --
> >>>> 2.34.1
> >>>>
> >>>
> >



-- 
With best wishes
Dmitry