From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40BD4C433B4 for ; Thu, 8 Apr 2021 16:34:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 18F48610D1 for ; Thu, 8 Apr 2021 16:34:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232009AbhDHQeS (ORCPT ); Thu, 8 Apr 2021 12:34:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:32808 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232334AbhDHQeO (ORCPT ); Thu, 8 Apr 2021 12:34:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AC066610CF; Thu, 8 Apr 2021 16:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617899643; bh=P34rZqQzi+uzqbnqI1xrfto1c/3g6EjqvX+IANZ0Ldw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=m3PgvK+HL3hhMHpBbsVGb9/zZ3wV9TxxzbAhXOCQjM08rdJsEMsBMd56D8f5OOItb maNBjXrmHn0TMYzrXQ/S/0l7z0aXUr4mDfHxTnN8FEmEIU7ep5q9MeVIXrU8S/b8ZG sKqi4l1yopBc32AYxD5bxlInwWaw90VRNI/dEa3rV2W465ed6VgxyLarwPw9pr0oep mI2zLugITmI57b/s1Ep/ePTMN+t0IX+DcL10FNBxf9U5X+dSmVL8dEUV9V1oAc09Tu mAjNfmGmR3MGK8izPTsV8eUjIjis2jv0ZyRuUdKHMyGckWatEWhhsKYx4ynpl657YY /RMp+9gevqvXA== Date: Thu, 8 Apr 2021 17:33:45 +0100 From: Mark Brown To: Rob Herring Cc: Jim Quinlan , linux-pci , Nicolas Saenz Julienne , bcm-kernel-feedback-list , Jim Quinlan , Florian Fainelli , Bjorn Helgaas , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list Subject: Re: [PATCH v4 2/6] dt-bindings: PCI: Add bindings for Brcmstb endpoint device voltage regulators Message-ID: <20210408163345.GO4516@sirena.org.uk> References: <20210401212148.47033-1-jim2101024@gmail.com> <20210401212148.47033-3-jim2101024@gmail.com> <20210406164708.GM6443@sirena.org.uk> <20210406173211.GP6443@sirena.org.uk> <20210408162016.GA1556444@robh.at.kernel.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="tzZdJ4yHDV5r1Akt" Content-Disposition: inline In-Reply-To: <20210408162016.GA1556444@robh.at.kernel.org> X-Cookie: Editing is a rewording activity. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --tzZdJ4yHDV5r1Akt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 08, 2021 at 11:20:16AM -0500, Rob Herring wrote: > On Tue, Apr 06, 2021 at 02:25:49PM -0400, Jim Quinlan wrote: > > On Tue, Apr 6, 2021 at 1:32 PM Mark Brown wrote: > > > > On Tue, Apr 6, 2021 at 12:47 PM Mark Brown wro= te: > > > > > No great problem with having these in the controller node (assmin= g it > > > > > accurately describes the hardware) but I do think we ought to als= o be > > > > > able to describe these per slot. > PCIe is effectively point to point, so there's only 1 slot unless=20 > there's a PCIe switch in the middle. If that's the case, then it's all=20 > more complicated. So even for PCIe that case exists, and it's not entirely clear to me that this is all definitively PCIe specific. > > o After some deliberation, RobH preferred that the voltage regulators > > should go into the PCIe subnode device's DT node. > IIRC, that's because you said there isn't a standard slot. I recall some message in the thread that said both cases exist even with this specific system. --tzZdJ4yHDV5r1Akt Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmBvMGgACgkQJNaLcl1U h9CUJAf+Nh0zP3iQ9+LL3Pr4m5J6LT5Fgs87NVCBediwBRM7EedTFDAFkspKdppU Vwvd3CFuyzGrWppnMDgDC6bchMMoeGeryDpGanZWbWgsNBb9B8Kdf7auVwuOOKNe fLN37q0+Gb0gpwNFmRQUnwCCNCOTvo1Bt5I2cuIMdEy4LmsU0sRvtXVtlAeJBNQU 5sx0opfkCgPp2zeodCt4CVV4HlUOc2GaxiFpdMQV6s9irjyVX3UnfxYToR5MqBJO 4Si9uDN7QAdgQnxvLi47LtT+4MzL84wFqHTjgf9++Yyxr2vBEvaGgz6O0iHpMVHs iwhnfagNwF+dn6zPIMO40a+2o2XgWQ== =b2of -----END PGP SIGNATURE----- --tzZdJ4yHDV5r1Akt--