From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthias Brugger Subject: Re: [PATCH] ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue Date: Tue, 23 Feb 2016 09:53:34 +0100 Message-ID: <56CC1E0E.4050400@gmail.com> References: <1455861643-24307-1-git-send-email-eddie.huang@mediatek.com> <7h37skw9jd.fsf@baylibre.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <7h37skw9jd.fsf-rdvid1DuHRBWk0Htik3J/w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Kevin Hilman , Eddie Huang Cc: Henry Chen , Chaotian Jing , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org List-Id: linux-mediatek@lists.infradead.org On 23/02/16 01:32, Kevin Hilman wrote: > Eddie Huang writes: > >> MT8173 E1 chip has one bug that if turn off USB power domain, vcore >> power will also be off, thus cause modules using vcore power domain >> fail, like MMC. The E1 chip only found on MT8173-evb board and this >> board only has E1 chip, so implement this as a board specific >> workaround. >> >> Pwrapper use vcore power, so add pwrapper using USB power domain to >> keep USB power domain not to zero and disabled. >> >> Signed-off-by: Eddie Huang > > Tested-by: Kevin Hilman > I send the patch in a pull request yesterday, so I won't be able to add your tag. Thanks for testing and reporting this issue! Matthias > I verified that this gets my mt8173-evb booting again when I enable MMC > support. > > Thanks, > > Kevin > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: matthias.bgg@gmail.com (Matthias Brugger) Date: Tue, 23 Feb 2016 09:53:34 +0100 Subject: [PATCH] ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue In-Reply-To: <7h37skw9jd.fsf@baylibre.com> References: <1455861643-24307-1-git-send-email-eddie.huang@mediatek.com> <7h37skw9jd.fsf@baylibre.com> Message-ID: <56CC1E0E.4050400@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 23/02/16 01:32, Kevin Hilman wrote: > Eddie Huang writes: > >> MT8173 E1 chip has one bug that if turn off USB power domain, vcore >> power will also be off, thus cause modules using vcore power domain >> fail, like MMC. The E1 chip only found on MT8173-evb board and this >> board only has E1 chip, so implement this as a board specific >> workaround. >> >> Pwrapper use vcore power, so add pwrapper using USB power domain to >> keep USB power domain not to zero and disabled. >> >> Signed-off-by: Eddie Huang > > Tested-by: Kevin Hilman > I send the patch in a pull request yesterday, so I won't be able to add your tag. Thanks for testing and reporting this issue! Matthias > I verified that this gets my mt8173-evb booting again when I enable MMC > support. > > Thanks, > > Kevin > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757418AbcBWIxk (ORCPT ); Tue, 23 Feb 2016 03:53:40 -0500 Received: from mail-wm0-f41.google.com ([74.125.82.41]:35396 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756677AbcBWIxi (ORCPT ); Tue, 23 Feb 2016 03:53:38 -0500 Subject: Re: [PATCH] ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue To: Kevin Hilman , Eddie Huang References: <1455861643-24307-1-git-send-email-eddie.huang@mediatek.com> <7h37skw9jd.fsf@baylibre.com> Cc: Henry Chen , Chaotian Jing , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com From: Matthias Brugger Message-ID: <56CC1E0E.4050400@gmail.com> Date: Tue, 23 Feb 2016 09:53:34 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <7h37skw9jd.fsf@baylibre.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 23/02/16 01:32, Kevin Hilman wrote: > Eddie Huang writes: > >> MT8173 E1 chip has one bug that if turn off USB power domain, vcore >> power will also be off, thus cause modules using vcore power domain >> fail, like MMC. The E1 chip only found on MT8173-evb board and this >> board only has E1 chip, so implement this as a board specific >> workaround. >> >> Pwrapper use vcore power, so add pwrapper using USB power domain to >> keep USB power domain not to zero and disabled. >> >> Signed-off-by: Eddie Huang > > Tested-by: Kevin Hilman > I send the patch in a pull request yesterday, so I won't be able to add your tag. Thanks for testing and reporting this issue! Matthias > I verified that this gets my mt8173-evb booting again when I enable MMC > support. > > Thanks, > > Kevin >