linux-kernel - Re: [PATCH v7 01/15] dt-bindings: media: qcom,x1e80100-camss: Assign correct main register bank to first address

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Message-ID: <f4fd544b-bd5e-49eb-83d9-290f77e503ef@linaro.org>
Date: Sun, 13 Jul 2025 10:15:23 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Robert Foss <rfoss@...nel.org>,
 Todor Tomov <todor.too@...il.com>, Mauro Carvalho Chehab
 <mchehab@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>,
 Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-media@...r.kernel.org
Subject: Re: [PATCH v7 01/15] dt-bindings: media: qcom,x1e80100-camss: Assign
 correct main register bank to first address

On 11/07/2025 14:57, Bryan O'Donoghue wrote:
> The first register bank should be the 'main' register bank, in this case
> the CSID wrapper register is responsible for muxing PHY/TPG inputs directly
> to CSID or to other blocks such as the Sensor Front End.
> 
> commit f4792eeaa971 ("dt-bindings: media: qcom,x1e80100-camss: Fix isp unit address")

I have next from few days ago and I don't have this commit.

> assigned the address to the first register bank "csid0" whereas what we
> should have done is retained the unit address and moved csid_wrapper to be
> the first listed bank.

This is confusing. Did that commit change entries in the binding?


> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  .../devicetree/bindings/media/qcom,x1e80100-camss.yaml       | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml b/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> index b075341caafc1612e4faa3b7c1d0766e16646f7b..2438e08b894f4a3dc577cee4ab85184a3d7232b0 100644
> --- a/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> +++ b/Documentation/devicetree/bindings/media/qcom,x1e80100-camss.yaml
> @@ -21,12 +21,12 @@ properties:
>  
>    reg-names:
>      items:
> +      - const: csid_wrapper

Anyway, this is ABI break, so needs some sort of explanation in the
commit msg. We don't break ABI for cleanup reasons, unless it wasn't
released yet etc.

Best regards,
Krzysztof