From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE3FF313E32; Thu, 26 Feb 2026 09:50:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772099430; cv=none; b=H0FS6KpwDS4Vi2m5UK+B6tLflioUkrrdu6z0KQbZkO8t3ra1WwW2CINXPbRe11SA8eE6ejXj106WfUVaoJPUoguVMUq65yZSvV4mUyIwqFn+1PKAj4ruylqZV+5OHN/K5Umi7+KdRXxkRzrKQAB9N3hfbQWu9D4hM81gur3D5Co= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772099430; c=relaxed/simple; bh=DoFI8NOx4OmNm71uvoT/u7+mNopX1qI0advMczlFsxY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=SxDvvjTprHElzWTO8I1Gobm4F8MjwIZzjNkIQ5tNE2XtrIdsf/AFXFtVw9NvfOjKxguTbL5jY4pFnAvb7OvvSNyGJc0+stFdlK6XfGrpiaIw8uUajQFaZTiMCM+1dTO7rfbbq/KWoATRGP+Yq6QoPattyFyO2/uNKwdwtSdHmlI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZDJ8FS4D; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZDJ8FS4D" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE149C19422; Thu, 26 Feb 2026 09:50:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772099430; bh=DoFI8NOx4OmNm71uvoT/u7+mNopX1qI0advMczlFsxY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ZDJ8FS4DZSC+Gw9dh19wXD2mexu/y9OtzSAIcGQQFrU3x/cA71La5BWcinusMdvRh Xv9qDThYtDkdoF7sFbkZ6kqSd1qU50dhMmV84ZF//3ax9/lxnxRMEkpX+NstQqc2K1 4pEV5HudSlc7vW1EV8u4GAJFMAzhWj+w1F4P5gILehrv4PA0qgARwsOQhsFd3O1CJP YwZtvVCbAv1vUwnhp5bfzmiX/PJd7qwogwm87ovvk8D42I1Udt6w50b+8CmWTYMwjr FozoWZ9Emfa8waIAF0zEr2L4XEJAdbl3AZU+/gdVzW1u+rBtDTv0ukQz931xk8SzFl i98Ux8njThRRw== Message-ID: <72f0ed74-ac86-4571-8a72-d41282349718@kernel.org> Date: Thu, 26 Feb 2026 10:50:24 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 02/18] dt-bindings: media: qcom,x1e80100-camss: Convert from inline PHY definitions to PHY handles To: Bryan O'Donoghue , Bryan O'Donoghue Cc: Bjorn Andersson , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Robert Foss , Todor Tomov , Mauro Carvalho Chehab , Konrad Dybcio , Vladimir Zapolskiy , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org References: <20260225-b4-linux-next-25-03-13-dtsi-x1e80100-camss-v8-0-95517393bcb2@linaro.org> <20260225-b4-linux-next-25-03-13-dtsi-x1e80100-camss-v8-2-95517393bcb2@linaro.org> <20260226-fluffy-complex-malamute-7ecec6@quoll> <35b1ba2a-e156-4542-b33a-d4e53f6a62cb@kernel.org> <4ebe2f26-29fa-4104-bc90-3f5aa7009ec3@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 26/02/2026 10:40, Bryan O'Donoghue wrote: > On 26/02/2026 09:33, Krzysztof Kozlowski wrote: >> On 26/02/2026 10:27, Bryan O'Donoghue wrote: >>> On 26/02/2026 07:07, Krzysztof Kozlowski wrote: >>>> No, it does not allow that. You cannto change the ABI. >>>> >>>> That's why I reminded multiple times before reviewing new CAMSS bindings >>>> for Milos and something more. Because once it gets accepted, you cannot >>>> change it anymore without valid reason. And there is no valid reason >>>> here provided. I kept these patches in staging/waiting for long >>>> enough... >>> >>> I thought your policy was - a dtsi had to have it, which we don't yet have. >> >> And from where did you take that policy? I am pretty sure my each >> comment is about ABI. Heh, I even commented few times about implied ABI >> purely based on kernel, without DTS. > > Correct me if I'm wrong. I thought we had discussed either @ the Linaro > Dublin meet or the Linaro Amsterdam meet that changing upstream YAML > would be feasible _if_ you could show there was no dependency on it - > say u-boot, FreeBSD etc. And I mentioned multiple caveats and restrictions. Do you quote them here or just took the first part of sentence before ", but only ..."? Anyway, whatever spoken is improvable and I am sure I did not give such permissions, maybe except that Dublin meeting was in 2024 thus before the release of previous user, so before v6.16, so of course you can still reshape unreleased ABI. And then you released it closing the discussion. > > I completely understand why you'd say for a UART definition its an ABI > since quite likely another OS might consume the YAML but, I also think > nobody but upstream Linux cares about this binding at all and our only > actual user is upstream dtsi in Linux, which doesn't exist yet. Half of the comments responding to DT maintainers are "but no one cares". Well, I do care, so that's it. If I start analyzing each case for possible exceptions I would spend too much time on it. So follow documented and expressed in written rules. Best regards, Krzysztof