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 D7E70C433DB for ; Wed, 31 Mar 2021 11:47:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0FC261998 for ; Wed, 31 Mar 2021 11:47:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235301AbhCaLrV (ORCPT ); Wed, 31 Mar 2021 07:47:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:57718 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235205AbhCaLrE (ORCPT ); Wed, 31 Mar 2021 07:47:04 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 546F961983; Wed, 31 Mar 2021 11:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617191223; bh=MEHIAOJCnD5NSU7ULLzWpFbC8P2mR31ilMdQBMXtbOc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bmP1RP5T5z4hKGvW98EtdBNRGmgIe9dzS3auzf3Op2eraqOzCajqJGuQ5s7AXikt6 emDr2FxSiK3XVUN5PvSID7n1dl0bjmDjzb+d8JlDLUqd5RjjodFV3qv7wcoegBb8CE 7/XW1HSWHbO+YtwlWiePfNvEvGB0HLOGWkr/afsbG+eAhWoW4FEQ/3EAMrcWAbv9bl XhIFWjSF2s+CavpXg0zQkiZUi155OuXnICXwL8e9RL5dxd1PhtrvLeVsKB/NBfwY+F T5483A70ZZLzjIgWOcz1ojyqZri9NkgTyhRdKsY+bx98ympZhlrw1MRdi8SBsGS7Vd CmiyU4xF6JsOw== Date: Wed, 31 Mar 2021 12:46:50 +0100 From: Mark Brown To: Jim Quinlan Cc: Rob Herring , 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 v3 1/6] dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators Message-ID: <20210331114650.GA4758@sirena.org.uk> References: <20210326191906.43567-1-jim2101024@gmail.com> <20210326191906.43567-2-jim2101024@gmail.com> <20210330150816.GA306420@robh.at.kernel.org> <20210330153023.GE4976@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3MwIy2ne0vdjdPXF" Content-Disposition: inline In-Reply-To: X-Cookie: You can't take damsel here now. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --3MwIy2ne0vdjdPXF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Mar 30, 2021 at 12:23:35PM -0400, Jim Quinlan wrote: > On Tue, Mar 30, 2021 at 11:30 AM Mark Brown wrote: > > For a soldered down part I'd expect we'd want both (if the host even > > cares) - for anything except a supply that I/O or something else shared > > is referenced off there's no great reason why it has to be physically > > the same supply going to every device on the bus so each device should > > be able to specify separately. > Our developer and reference boards frequently have Mini and half-mini > PCIe sockets (a few exceptions), whereas production boards are mostly > soldered down. On reflection I think the above probably also applies to sockets - you'd just have to have a socket visible in the DT. > If I resubmit this pullreq so that it looks for "vpcie12v-supply" > and "vpcie3v3-supply" in the host node, will that be acceptable for > both of you? I think you will need both (assuming the controller actually physically gets the supplies) - like I say the sockets/devices may not all share the same 12V and 3.3V rails. --3MwIy2ne0vdjdPXF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmBkYSoACgkQJNaLcl1U h9AzZwf+IHeeyiF1l7tnQ0F0NICTUvUfGXdva6I5FzgczPxucf1w9Y/VIHGfrFi4 E09OZWs/FH0fFgUQWO+bqeaXYInpMnGsMCdXZSEYsABgQoMTtvoCQr+o1QKvJ/Ye 5IR1iPxdigor4QKIXvTIi0sIC/iFvMVo6wFfIInf7qzmsLnZE/uuJmHh3Sq2I1JW urO6SiyAzZkdn6ZVA5Asu/8MeUmIMCC7Cidc25fBedch6a8+dqewQds0uZCJC40k k8rsYDdF1E8DuKITqLcNiYDS677bgx/F+0DXWRrVMYawSiOxmrLTk+fBYq3EzYq3 8I/egyMtNle4xXbSt4WSpuODegtakw== =YqRz -----END PGP SIGNATURE----- --3MwIy2ne0vdjdPXF--