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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C8E8C433FE for ; Fri, 4 Feb 2022 19:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234043AbiBDTcz (ORCPT ); Fri, 4 Feb 2022 14:32:55 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:48588 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233950AbiBDTcz (ORCPT ); Fri, 4 Feb 2022 14:32:55 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 20C2DB83804; Fri, 4 Feb 2022 19:32:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5ED5C004E1; Fri, 4 Feb 2022 19:32:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644003172; bh=uTj62FLingKqWAQg9C6R9/t1yTvVZAR768Wmtl4AJL0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SbAGSW52xlz9sQkqgItDjXwZT69TRZFbz4qItHTHUKdpglLkKnguZsF3oIb7qsT4t Q4H39hOP2MJcRU2oAtEUUmig/Vf8HjWWkJD8N9WGCmjJ6WqykBNPSZ7/JfOSVCh9uO FH2tdYI0CHUGHZniTx0xMX5gKZzAlNWZz/BiU4dCcMGyQ2CrEghH9atNAPJUTUGCCk 0punO8bs3BRVcmoxLQdtnPcojvF0uWxNeUfClqcKwlMFkRVyPtGSDHlnn61KDyE35u tNhJmn7u8he6Cx+8Si11X++NJsbrCZ1RbpAmnTgYaQ+S/I6uEwDCujCStlr9EZ1F9x ZPBMxjy0KgWoQ== Date: Fri, 4 Feb 2022 19:32:47 +0000 From: Mark Brown To: Bjorn Andersson Cc: Vladimir Zapolskiy , linus.walleij@linaro.org, Loic Poulain , Robert Foss , Rob Herring , Wolfram Sang , linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH 2/9] dt-bindings: i2c: qcom-cci: add description of a vbus-supply property Message-ID: References: <20220203164629.1711958-1-vladimir.zapolskiy@linaro.org> <20220203164629.1711958-3-vladimir.zapolskiy@linaro.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="lSHQgVPpfOtQnKGc" Content-Disposition: inline In-Reply-To: X-Cookie: Torque is cheap. Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org --lSHQgVPpfOtQnKGc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Feb 04, 2022 at 11:02:04AM -0800, Bjorn Andersson wrote: > On Fri 04 Feb 10:42 PST 2022, Mark Brown wrote: > > On Fri, Feb 04, 2022 at 10:05:47AM -0800, Bjorn Andersson wrote: > > > Typically we don't don't mention the bus-supply because it happens to be > > > pulled up either by io-supply for the block, or by some always-on > > > regulator in the system. > > If the bus is being pulled up to some supply other than the supply that > > the bus is referenced to that doesn't sound like the greatest electrical > > engineering ever... without any context it's hard to comment about this > > particular system. > That's what the schematics says... Oh, good. I forsee no problems here. Probably this is something that should be in the I2C core if it's going to be dynamically managed, though just setting the supply as always on is probably more expedient. --lSHQgVPpfOtQnKGc Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmH9f14ACgkQJNaLcl1U h9B6iQf/byV4+e+uFBM6wEtccDusBqTglW0hQhfar5lUjuwIB9B59eKV7EsYb7k5 xKR+Fdi3tesx6q+OJpQZ4VGUfOPM/ISNdfT/tLWimfH6DCNEe1aOZwedHHlogEFP 2uovVtGrJ6KYJAm+yDK+k8PsJZV3HaCxU+ZjrL9Mp8i0W9AcbIMZW5yiABpi7dq2 Whamy9IW1CQmSCfPKU1Jrsx/eXusl+NeahbhqCTqkwxFHjr6yamJCRPS0z6OeN8F dTkoYfS1eUkUKUFfmtJF6MFztp5UHX/kJGgEdw0qqV35LMtBsYNBG1jmRNEzLtdd udPtQuWAR3NHMiWHrCM1+Esj5LCTJA== =UVPL -----END PGP SIGNATURE----- --lSHQgVPpfOtQnKGc--