From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932918AbaHVSbW (ORCPT ); Fri, 22 Aug 2014 14:31:22 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:55664 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932410AbaHVSbU (ORCPT ); Fri, 22 Aug 2014 14:31:20 -0400 Date: Fri, 22 Aug 2014 13:30:54 -0500 From: Mark Brown To: Javier Martinez Canillas Cc: Yuvaraj Cd , Doug Anderson , Olof Johansson , "devicetree@vger.kernel.org" , linux-samsung-soc , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Abhilash Kesavan , Prashanth G , Alim Akhtar , sunil joshi Message-ID: <20140822183054.GY24407@sirena.org.uk> References: <1408350762-15520-1-git-send-email-javier.martinez@collabora.co.uk> <1408350762-15520-2-git-send-email-javier.martinez@collabora.co.uk> <53F73472.8010609@collabora.co.uk> <20140822144531.GV24407@sirena.org.uk> <53F7838F.8060906@collabora.co.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="2+XEzv9QEhmMrrEN" Content-Disposition: inline In-Reply-To: <53F7838F.8060906@collabora.co.uk> X-Cookie: If you can read this, you're too close. User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: 208.59.64.2 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH v9 1/2] regulator: Add driver for max77802 PMIC PMIC regulators X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --2+XEzv9QEhmMrrEN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Aug 22, 2014 at 07:53:19PM +0200, Javier Martinez Canillas wrote: > On 08/22/2014 04:45 PM, Mark Brown wrote: > > On Fri, Aug 22, 2014 at 02:15:46PM +0200, Javier Martinez Canillas wrote: > >> Mark, any opinions on how this should be solved will be highly appreciated. > > If someone could tell me what "this" is that'd help... > Sorry for not being clear on that regard. By "this" I meant the problem > reported by Yuvaraj. That mail was rather lengthy and seemed to be discussing several issues. > The problem is that one of these regulators is used as the vqmmc-supply > (VCCQ/VDD_IO) so the mmc host controller driver disables it on > MMC_POWER_OFF. Now AFAIK (Yuvaraj can correct me what I got wrong) this > shouldn't be an issue since on card detection, the vqmmc supply should be > enabled again but on Exynos the built-in card detect line is on the same > power rail as vqmmc. That means that disabling the regulator prevents card > insertions to be detected. If the MMC host controller needs a supply enabling in order to do card detection and it's supposed to be doing card detection I'd expect it to be enabling that supply. Why is it not doing that? --2+XEzv9QEhmMrrEN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJT94xVAAoJELSic+t+oim9+sAP/0cqgmmXXz6iRp17Yz50SEe8 bmS8yZpJm8VkJ7Jc1qSX8UTWOO5GejWgFogjANm5zOqPCPDD0Sk7ZMn/O3Rep+kW ZhuvT6pWFXetx5/A8EpS9JrsUIrSJ1kjyzkNvSFscom41Xfo58UzYY99abMg9im1 PpOAk32owkOogMzbWhH9r13UpdAcWP9AItIPNCuNV+VAOwfmcQS1bQtfbS4KwOxI MRm9mn75bvzF+1xm2b92rrRgyX+qOVFsSrwL7u59xjU5rnt0o4/XUWr+GxiGmm3y AgFZrFlBPDONZyxfqTZjtJhw281aQOS9R2YpAerGqHGRLvSxYKZAKdA9CstJ2bzP qaRVvmPmsy/FZCioV6u5/ES6tekmoO0PHzehjRdwV3t+b0Mt5z0Ttx058VUSnj/O z9Zae3HzOfuO3LFBHYaKWcErGK3VNbc9x9/E92pd+i0r/5zetEsifJjOZ8U2tigC Ayv6v4AOJKxhpRt3DLyQh0NnYLO+Doxrbo2PBV1yz7CPIBGDytB81FW43iw/BV+a GIZIXBDFMgMsP+G6SoMLoBAOS9NqbzsRG5FC9ZSDIM9hK77mfyj5DdGLHbDD1m2L TbO67IEjTGHQ/Qxcsh+go69yzJYh3vkgDWnKSqUFArvTtxqRQSIl95jhv1u2Q8QW +yIUmY9hsMtj7gDyyDDX =0vDJ -----END PGP SIGNATURE----- --2+XEzv9QEhmMrrEN--