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 AA207342CA7; Fri, 10 Apr 2026 10:25:45 +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=1775816745; cv=none; b=dSnuyg6Ic5GmGrwMebW+qcnjkEccaHhO7/IHyMVYEcN0yNDA6ZUvAZQrLMkkS20Vi6Wx/R/eS5dB9174e8NX98tbO6WPpBuovHTImCkCe/IIvKbTfux5c8JG75VDwcJcGxzEwAnU7yxzXXB8kweIcMC4+q3BI7pqpbgixIVPTHU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775816745; c=relaxed/simple; bh=t2nET9fPDGaJpyw3Vp3C8RpRsISRCVamh6ppDvw204A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cf0t61imhQ6jmX+b05u4BiZpOevFrBIJNomuEnktx4vkueHuy6vs8vKjYfkY3RPOCe8YBWy2Pbb1xOd9tZthgr3zCtLS4JS4Y2pbwYATBePeLKRSjL49Klvzln1SL/E6wBgTE7wM7rOPIDnSwO8Wh0SunTdKbyUQxUbj3l8QVpQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BCrOGua3; 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="BCrOGua3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30B89C19421; Fri, 10 Apr 2026 10:25:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775816745; bh=t2nET9fPDGaJpyw3Vp3C8RpRsISRCVamh6ppDvw204A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BCrOGua3k+NyL/VrHFX3rLHLc02293xMNUpiXL2RQ95Ot85YYQgRQ6n4cLVeeNBFJ pbcO02LfjJN8noFdIFg0NkKNUNf0+jMYETuyLIA+j6Q6HiI1FkSBz422pNlMavo7vO EJVHkegQGORJIPk7Iua21ygYCKdiOjxTlO9oXVOI5Gso41abqjxvbkwwbon/sLK+7I GL4N38QaXfiLYAkbycW4yy65nSj977AGXMKj9gdJZXALq6gY3UOtYsYhgc5PSoy9JX gKDpXtwvb4r0cwRYvxXg0ICMt5SbWy3x2NXXs1s5wIadS1cNdrQ+gcllwT/03hIYbT Zh0ONTytxVugQ== Received: by finisterre.sirena.org.uk (Postfix, from userid 1000) id 9D6171AC58AF; Fri, 10 Apr 2026 11:25:42 +0100 (BST) Date: Fri, 10 Apr 2026 11:25:42 +0100 From: Mark Brown To: Karthik S Cc: Srinivas Kandagatla , Liam Girdwood , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] ASoC: codecs: wcd937x: Add conditional regulator control for wcd937x Message-ID: References: <20260402072256.2811085-1-karthik.s@oss.qualcomm.com> <8d97669b-7bde-4a21-8131-0907554f534e@oss.qualcomm.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cyYqfUp1SGYbh6T5" Content-Disposition: inline In-Reply-To: <8d97669b-7bde-4a21-8131-0907554f534e@oss.qualcomm.com> X-Cookie: You will be divorced within a year. --cyYqfUp1SGYbh6T5 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 10, 2026 at 11:10:22AM +0530, Karthik S wrote: > Hi @Mark , Please don't add random characters to my name. Please don't top post, reply in line with needed context. This allows readers to readily follow the flow of conversation and understand what you are talking about and also helps ensure that everything in the discussion is being addressed. > On the indus mezz skew, The codec rails are distributed through fixed Vdd > (3.3V supply). These rails are Board=E2=80=91controlled , not switched by= the codec > and not power=E2=80=91cycled dynamically. There is no per=E2=80=91codec e= nable/disable > control exposed to software.The codec is wired to rails that are always > powered when the board is powered. Hence this justifies it being handled = as > a board dt property. This is a compltely normal situation for regulators, probably true for the majority of current systems with regulators in use. Why would this board be different? --cyYqfUp1SGYbh6T5 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmnY0CUACgkQJNaLcl1U h9DvkQf8Cr6rrjoUGJrXeCvWME9tegSH8nwdbQUQh0DiYnpobYo0cyb4X3MlF251 o2yRdzSUHbWng/G7NKk84Azri3E8QAysq8MH7kQu8nHDj05NqfEp8o9WTlPvlacm b4RknaEKdGKFIYNpttl8eYRrxqnc1jT0jvA/zBbbgr5O0Ag6Rq/VbC2j9+Uix1TS cEvIwZMMIwffHuwKglWUfgCIToyGlfco/cAWedYvOpME7c4Vfd/O5k0RwMsqy7xT 28+kovaDjFItQQBQ3AOZCCiQnrIXW0f/wSUlDEFzUJj2hS4Ch3z5qvWpxTDjxD+/ 2/6YjpWVDrI9bG7F/GcAXollPyXOng== =09qk -----END PGP SIGNATURE----- --cyYqfUp1SGYbh6T5--