linux-kernel - Re: [PATCH v7 02/15] dt-bindings: media: qcom,x1e80100-camss: Convert from inline PHY definitions to PHY handles

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Message-ID: <87e7ede4-0f3f-4955-a3f2-d92850873cf8@linaro.org>
Date: Sun, 13 Jul 2025 12:03:04 +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 02/15] dt-bindings: media: qcom,x1e80100-camss: Convert
 from inline PHY definitions to PHY handles

On 13/07/2025 11:48, Bryan O'Donoghue wrote:
> On 13/07/2025 10:39, Krzysztof Kozlowski wrote:
>> Lack of in-kernel DTS is a good argument in your case, but you must
>> mention ALL OTHER USERS:
>> 1. All drivers in Linux
>> 2. All other upstream projects, BSD, U-boot, everywhere upstream
>> 3. ... all possible other users of the ABI, so out of tree DTS and out
>> of tree kernel folks. This one is close to impossible to prove...
>> Luckily we assume this point does not apply here at all. No one out of
>> upstream trees uses these new bindings.
> 
> OK, if I get your meaning here.
> 
> More comprehensive commit logs and cover letter - including doing to the 
> work to look into BSD and u-boot to make sure the change doesn't break 
> things for them, which I'm nearly 100% sure is the case, is what you 
> need here ?

Yes. Just say that ABI change has no known impact because of this and that.

Best regards,
Krzysztof