From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ohad Ben-Cohen Subject: Re: MMC runtime PM patches break libertas probe Date: Thu, 2 Jun 2011 21:25:17 +0300 Message-ID: References: <477F20668A386D41ADCC57781B1F704307FD0BF3B1@SC-VEXCH1.marvell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:48773 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753916Ab1FBSZi (ORCPT ); Thu, 2 Jun 2011 14:25:38 -0400 Received: by eyx24 with SMTP id 24so397467eyx.19 for ; Thu, 02 Jun 2011 11:25:37 -0700 (PDT) In-Reply-To: <477F20668A386D41ADCC57781B1F704307FD0BF3B1@SC-VEXCH1.marvell.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Bing Zhao Cc: zhangfei gao , Daniel Drake , "linux-mmc@vger.kernel.org" , Mike Rapoport , Zhangfei Gao On Thu, Jun 2, 2011 at 11:39 AM, Bing Zhao wrote: >> If we power down the sd8686, and power it up again, without toggling >> the reset pin at all (e.g. keep it always high), will the card work ? > > Yes. The card should work without toggling the reset pin. Thanks. Just for closure-sake, can you please confirm that the sd8686 requires sending a CMD5 arg=0 as part of the initialization sequence after powering it on ? (we'd probably add it anyway, but it'd be nice to get a confirmation about this from you guys) Btw, it will be nice to allow cards to avoid sending this if not required; a simple card quirk will do. wl12xx will definitely use such a quirk.