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 9C2331BDD0; Thu, 23 May 2024 06:08:11 +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=1716444491; cv=none; b=GLL/zqwyxQoh873Sp6Kkv8tGkVoZ0eUErH1golO1melbIAf16YB4D0ogtrIUUo7uF3tt9SLGf0CVsNyrhth6lGXxM7m2SMjI83i0Kt3gGa7/Osuhno/Ph6xfIgybD375va0LG+DG1nr0H7Xbp4ZhdgCw6C5QY2T6GdEcNz8D7Gk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716444491; c=relaxed/simple; bh=pLbZiax0te31MLzLpkRxYePvLwC2+90oQEflwUwlJdM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=tFrRsmvMxRkepc5TujmdUoZYeZp/INQgBjZlEr2/IY//mPL3hpvk9HG9UajIHS+HV/ylxzmdwkvWc+xlKs2VjOixsld46S1glz+OIiJULOFSehwH490roYCOOU4S22AfykhTEvQk9IuYcjNwK66b7GzB5NCSuOmwJvgSmOD92vk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DcOZITD5; 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="DcOZITD5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 270C1C2BD10; Thu, 23 May 2024 06:08:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716444491; bh=pLbZiax0te31MLzLpkRxYePvLwC2+90oQEflwUwlJdM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=DcOZITD5EvWCGITJvjyzY8LGOdFeRXszMN7bMtqtbYIyDPYMYqQaHsB/g0X54C9Lf mmBRQqIHCViQyr09eiQkrYdJmpKSTiEZKoyXIxjSoztew7Qhh4e2XXx01ao8rZme4O MQ0Z9nDj63bWW/fbuR40QyGdOe5+ie5HfkHPgtg6Uq3U6M1E7zc7Pd2i8AEYlkfGXe 1CJD+50Wno2kXe/By9GN9ooV6UxUxWazmzJyw6QvVrjw2ZqVEj5sfJstzeQiXMa1oh 2/o/QcYeccXjg04Sh9t6ASrqxLvrFlich9ghGmKXvCmqTCmUIamc6i0lgBQrVN9/1I jqQ8bbWbudcQg== Message-ID: Date: Thu, 23 May 2024 08:08:05 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5] ASoC: dt-bindings: omap-mcpdm: Convert to DT schema To: =?UTF-8?Q?P=C3=A9ter_Ujfalusi?= , Mithil Cc: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lopez Cruz , linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240522075245.388-1-bavishimithil@gmail.com> <0594944d-c158-4840-8724-b3f2edaab1ca@gmail.com> <4f722e53-011f-4176-b6af-080522165007@kernel.org> <3c6c5be1-fb8e-4bf0-9f58-cfb09672e8c1@kernel.org> <58ada5ce-5c02-4ff5-8bdd-d6556c9d141f@kernel.org> <2d2b0047-ae08-4a76-bada-6bc92f443544@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 22/05/2024 20:39, Péter Ujfalusi wrote: > > > On 22/05/2024 20:07, Krzysztof Kozlowski wrote: >> On 22/05/2024 19:02, Mithil wrote: >>>> Yep. And testing DTS should clearly show that conversion leads to >>>> incomplete binding. >>>> >>>>> >>>>>> I assume the DTS was validated with the binding. Isn't the case here? >>>> >>>> Mithil Bavishi, >>>> Are you sure you tested the DTS? >>> >>> dt_binding_check did not give me any errors. Yeah the example is >>> different from how it is implemented in the kernel ie board specific >>> (omap4, omap5 etc). Should the example be changed according to that >>> dtsi then? >> >> Binding needs to be adapted to match DTS or DTS has to be fixed to match >> binding, depending which one is correct. > > Normally the DTS is written based on the binding document and the driver > is written also to follow the binding document. > However in this case we have a broken/inaccurate binding document and > the existing DTS files and binaries in wild have deviated (there are > boards out there using qnx or BSD and use this binding), or to be > precise the binding document was not updated. > > The existing DTS files are the ABI, so we cannot deviate from them, > unfortunately. > > In this case the DTS / driver needs to be reverse engineered to create a > binding document. Ah, yes, the third option - ABI should not be broken and sometimes binding and DTS needs fixes. Best regards, Krzysztof