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 C47292DD5EF; Wed, 11 Feb 2026 06:23:17 +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=1770790997; cv=none; b=uB9GtG2fMnGS+Ejg7shlfzhqK2A7VEMr8QI1io1a2hMOvBMPKD19bxPYgmPwsyFrkxcpgcZzkt7FfhN1bXZFVlggIB5hMOXLmw/xt2zAjIPomh5gE16GQAEu69p7qgCo/ztflpSDCHcru3x6dkR9IyK8re0TqrzrU148zdYlcNw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770790997; c=relaxed/simple; bh=k3/wLxQOfSJvKHp+dEuXTwxNbZFG7VanHm76fR1EfQM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OefTfP+hw146aRnE+XVDXXDI+kgLj/nttThkXfGHUixMy29DTZUfNLOyEFMrp3x3rsBp3dOiXUJT+4pIBO8SsU8hUbI+2Ygt+krBCa1y5f8IwIiXK/GgmN3z+QmLVDQPHkOtcey2QA/pj5QZAJN2Joa7zT6d5c7C9bXMK+vPy5M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=N35NBCW5; 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="N35NBCW5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6900BC4CEF7; Wed, 11 Feb 2026 06:23:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770790997; bh=k3/wLxQOfSJvKHp+dEuXTwxNbZFG7VanHm76fR1EfQM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=N35NBCW5dwVxEWHUplUx3xcaFuTlFDgZrHvBryTgHH9yzppBtKwTWIE23h+3mo3yU T9QYI8Ir9zefLUFRN5IUDV+ervwDcDwYR9BU0aY04XuWUd2ra62swNvbhr5FTxNBV2 +4iJ4QfSzKbzOkYVGU+D9IudamlSSozApwOoBLvtU3b4Y/v8OJY7+6pYl0HwAIRryj N4nN6wEKIcEFV1GlAahosz1VRDReIi5ZatkGxcdD51nVdwfy+rNN3YHQTdv09cZ3qr IDvCeWk2FZ+P6Udtob968gdgDbXTATX/Pgb3NrhC+BW61RhLOpLnQFNMyxr7DRc+f9 9X5as1+XItZWQ== Message-ID: Date: Wed, 11 Feb 2026 07:23:12 +0100 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/2] dt-bindings: sound: simple-card: add sysclk-cpu-first flag To: Stefano Radaelli , Kuninori Morimoto , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mark Brown , Liam Girdwood , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , alexander.h@variscite.com, pierluigi.p@variscite.com, Stefano Radaelli References: <20260210164506.161810-1-stefano.r@variscite.com> <20260210164506.161810-2-stefano.r@variscite.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/02/2026 17:45, Stefano Radaelli wrote: > From: Stefano Radaelli > > The simple-audio-card driver can program sysclk for CPU and codec DAIs > during hw_params. Some setups require calling the CPU DAI sysclk first > so that the codec sees the final MCLK rate. > > Document a new boolean DT flag, sysclk-cpu-first, which allows selecting > CPU-first sysclk ordering where needed. The property is supported both > as a top-level simple-audio-card property (prefixed) and on dai-link > subnodes (non-prefixed). Please use scripts/get_maintainers.pl to get a list of necessary people and lists to CC. It might happen, that command when run on an older kernel, gives you outdated entries. Therefore please be sure you base your patches on recent Linux kernel. Tools like b4 or scripts/get_maintainer.pl provide you proper list of people, so fix your workflow. Tools might also fail if you work on some ancient tree (don't, instead use mainline) or work on fork of kernel (don't, instead use mainline). Just use b4 and everything should be fine, although remember about `b4 prep --auto-to-cc` if you added new patches to the patchset. You missed at least devicetree list (maybe more), so this won't be tested by automated tooling. Performing review on untested code might be a waste of time. Please kindly resend and include all necessary To/Cc entries. > > Signed-off-by: Stefano Radaelli > --- > .../devicetree/bindings/sound/simple-card.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml > index 533d0a1da56e..ddad440636be 100644 > --- a/Documentation/devicetree/bindings/sound/simple-card.yaml > +++ b/Documentation/devicetree/bindings/sound/simple-card.yaml > @@ -35,6 +35,13 @@ definitions: > description: see tdm-slot.txt. > $ref: /schemas/types.yaml#/definitions/uint32 > > + sysclk-cpu-first: > + description: > + When mclk-fs is used, configure CPU DAI sysclk before codec DAI sysclk > + so the codec sees the final MCLK rate. > + This property only affects the mclk-fs code path. You described the desired Linux feature or behavior, not the actual hardware. The bindings are about the latter, so instead you need to rephrase the property and its description to match actual hardware capabilities/features/configuration etc. Best regards, Krzysztof