From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EC843C5DB6 for ; Fri, 22 May 2026 10:09:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779444557; cv=none; b=GyHP3ZfibOCwQg4Vz5rJsuU0+TyKQuivrLYTyjEBb/nT1gPT1P4+dbhBn//ctVp3mWEXxmQnCKQNryJOciupFLAaNWt0Pm6WKki4h8tHrFSbVUFvRpmqJS0cMfHH6MfzoL6rGpQGE6VlUpbHvkYSOO6Z0HFILB8aEQ847sfKNTk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779444557; c=relaxed/simple; bh=tXc0GLTLQkLv5ed8xLAOzgZ/WOFmTaW0lEw88YWLwMo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XcAb4/5Sx2XFI1hhbOrBjJXfwvL0bqNXGM6t6cdkAZKJ2IyIyxZEGZNS0+NRzg4clGALNU9eUXIrFt4oREhOe6SjoQ+1ctIMIEwKs8ARKTvp6NH2RZTncWnNLQFh4W3Q/Waftm2yLVbunawXClwPePHhBGjJ+A3lGlqy1S5fG2E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=j+I5Ehaq; arc=none smtp.client-ip=209.85.128.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="j+I5Ehaq" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-4903cbfad68so10413365e9.0 for ; Fri, 22 May 2026 03:09:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779444554; x=1780049354; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=4zz81ZxdfpEspL0BWo4PKiQavHk71+JXORK+v8WVheM=; b=j+I5EhaqgmEyqiI/EWYUdEL4+5FRAESVrhF3MHjlg1PkuuQwj08RNRYqcOcj6kteQX n0Cd3nkamEak0C0cUuAqpxvlS6HEfl5aStC0Uoup/5pR2bMdTMlQm7PDDy4SF7I9UhBg LTAymzVm9JOXSD1PuPa5glyAZR9xAFiLEg0/S4Uy/aXQjHnslt1PC6ZD90V/E3aMlb9h 8CLmwSeH+htPuG9i0aentvC2V3nWkotVEiXXMj0P361pkZA4iKsyQ8DSAEyrThtk2AR1 pCvLdsePPNaBDpfdX1GufcJlD9D03cdA5dwpaYF1iF2UmBJ3Z0w5/Osu9TIS1ES8Id4a lGGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779444554; x=1780049354; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4zz81ZxdfpEspL0BWo4PKiQavHk71+JXORK+v8WVheM=; b=M5Sqb4/laRne/2vbjbGP3NH1VlvhIVuWSGhK2Yq64FlwfrxNZBgB4AIIOnZoZTTjfY 6afFL1zRXgV44QPZeozJisnsBDneCnb6uczGg+LyNmOELKbh/QW+u8juzWqwdNID683g +8SixBMQ4jgRLF58AYSn5Z//fGrWOXFWHEgkPTEiXSzoHp9H7t/qnkMt0GvvC0dBHgj+ X3Lscext0E/T6ss+OuNiShGRXcLTILzFOxV8vDnqtTOUCy/4IXQY7F9HUIb00j1ff9ie 2Qwmaynfm2PrqWvfAe7a3WoXu/vzSa89cZ2ylGoLyrqdxVSQoia5d5AmfJ5KNmqDMyDA gyNA== X-Forwarded-Encrypted: i=1; AFNElJ/UOlROV1f4cRMBpqQF0BnLyTeyOH5DZR0xFpcE//dQdBXCV7LT1N+0BjiC+aNEPjrcI0auM2LyvMEr@vger.kernel.org X-Gm-Message-State: AOJu0YwSbmzjJszrqFVNDCayiwsg4lkCYxGu99Gxl8EfyRaV9LFiKoD2 4VBN5CQ8Yaa6pjKg0tghbQzeRrfPd003HqGOSvOcVhtxab5v7umuGLPp X-Gm-Gg: Acq92OEZLdH6IUqWjbVKhG2scvtcFFeatS5LkLRWiDCwMER1UJAh9zmQnQc6BhZt/fK XGuFXlPBQnkJe2h6sVcqximPzJJy0bXs6HiKnlPvYteIQf3L7a5O+cXd0aIi7sdX6pVGYt+Jv9t otwDbifsxBu+U6oigadwXPsoTqALtZY5nXsNHJWl7O7U6jwNidSv+Auugn2NHraRvBVNx7m3E8A HNBSq3avjBEUwtOcIQPQKtO8z61SKikQc5kdZ2OGug41Bze4khbK1n9bySUS1ZrreWsUDcZtzmj vCtLQnfIQ+/eUNZn5X46mAfYJjr8GsV4bQIEUBwTlnAsheUP6iVIK7Bml0kNxoPY+m8kHvA2OIC 1/LFoOR5TR01JAlMwrGGmZrtQ+gSX3tkn2FI9vM/eXe3qhnsta84SJrpr0GLcOKGhZyB+Ojclpk w92sdS/k3moo5kL4+6xAO+cznyNNJ4VA0lq3AKwV6Fkbl5KpZz/TBbMvzXxN4HWygoSlGNK0626 3j3Y8O7yR2vtA== X-Received: by 2002:a05:600c:1992:b0:48a:79d8:a8d6 with SMTP id 5b1f17b1804b1-4904245f54cmr27207905e9.7.1779444553576; Fri, 22 May 2026 03:09:13 -0700 (PDT) Received: from orome (p200300e41f291e00f22f74fffe1f3a53.dip0.t-ipconnect.de. [2003:e4:1f29:1e00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-490428e03d4sm16430345e9.9.2026.05.22.03.09.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 May 2026 03:09:11 -0700 (PDT) Date: Fri, 22 May 2026 12:09:09 +0200 From: Thierry Reding To: Akhil R Cc: Vinod Koul , Frank Li , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Hunter , Laxman Dewangan , Philipp Zabel , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 01/10] dt-bindings: dma: nvidia,tegra186-gpc-dma: Make reset optional Message-ID: References: <20260331102303.33181-1-akhilrajeev@nvidia.com> <20260331102303.33181-2-akhilrajeev@nvidia.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="cba7btxxm4dnjqoy" Content-Disposition: inline In-Reply-To: <20260331102303.33181-2-akhilrajeev@nvidia.com> --cba7btxxm4dnjqoy Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH v6 01/10] dt-bindings: dma: nvidia,tegra186-gpc-dma: Make reset optional MIME-Version: 1.0 On Tue, Mar 31, 2026 at 03:52:54PM +0530, Akhil R wrote: > On Tegra264, GPCDMA reset control is not exposed to Linux and is handled > by the boot firmware. >=20 > Although reset was not exposed in Tegra234 as well, the firmware supported > a dummy reset which just returns success on reset without doing an actual > reset. This is also not supported in Tegra264 BPMP. Therefore mark 'reset' > and 'reset-names' properties as required only for devices prior to > Tegra264. >=20 > This also necessitates that the Tegra264 compatible be standalone and > cannot have the fallback compatible of Tegra186. Since there is no > functional impact, we keep reset as required for Tegra234 to avoid > breaking the ABI. >=20 > Fixes: bb8c97571db5 ("dt-bindings: dma: Add Tegra264 compatible string") > Signed-off-by: Akhil R > Acked-by: Rob Herring (Arm) > --- > .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 23 +++++++++++++------ > 1 file changed, 16 insertions(+), 7 deletions(-) Acked-by: Thierry Reding --cba7btxxm4dnjqoy Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmoQK0UACgkQ3SOs138+ s6EvWw//RWCFZQ9T5C4dp8mVROoGcJewvvJHj46nkOp0utsLoYqLxlyBAndZ4kjp EXuaATKAZbfG2HAMtwunnvWgwGfFYzQzNqfO4bqXAKGltGU8X5NPai06UZ4ljxYR WTsV0ZexSKoOXL4jaKU/ZRabzsXm63ldoMpfJv4ahxyoWH6Y2kOqILa7FLlb7GHS FvCyV9lb6CWA+QA5opFdz3qqC+WxhYaKET1F4q5xbFD5PagVYShaEaYt8MRv0iil AMyn/NwaX6lOjGTL1CpvJ/jnmlf2Gu7temInUkZANF8wJzYY0xVU4J00bzryvsXO eSzZwAemjwGTyLF1hsMbmSyqjLLHe7eDq/Y4DEKX3xFGVSd8zKy/vN+zUhFp+9HQ oxRLORiWrIC8nCgMC7weCZ3ufNIf9Oh+IMxcx9bYghGkOFcwPw/mQB29LmZ7zuyi IqY9bdEILNNqnTXrULGByqQ2ywvZkZItadnWV1WgXeHRHdLNLzgy7ZfaQsdnBG+w 6WrRkzN8o26x3rtL8umBdxgUrjPomamGU0F97/zy8+aHzrT8/AvL03008euSMliV sF5OyIHPVRCgyKhe1nuOWXX56BT9+R66zECG68/tWN9OBU25SNy5Q8pYH7x577Xf IxAPlE5nxcOYxP4CAZfTCnEoq7uYRM/zhhLM/ocmPMkvwZchP7g= =T5zQ -----END PGP SIGNATURE----- --cba7btxxm4dnjqoy--