From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Ferre Subject: Re: [PATCH] mmc: atmel-mci: fix timeout errors in SDIO mode when using DMA Date: Wed, 27 Nov 2013 10:41:42 +0100 Message-ID: <5295BE56.3060609@atmel.com> References: <1384959671-5646-1-git-send-email-ludovic.desroches@atmel.com> <528E29D0.9080507@atmel.com> <87zjoqer82.fsf@octavius.laptop.org> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from eusmtp01.atmel.com ([212.144.249.242]:56058 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751793Ab3K0Jlu (ORCPT ); Wed, 27 Nov 2013 04:41:50 -0500 In-Reply-To: <87zjoqer82.fsf@octavius.laptop.org> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Chris Ball Cc: ludovic.desroches@atmel.com, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org On 26/11/2013 23:24, Chris Ball : > Hi, > > On Thu, Nov 21 2013, Nicolas Ferre wrote: >> On 20/11/2013 16:01, ludovic.desroches@atmel.com : >>> From: Ludovic Desroches >>> >>> With some SDIO devices, timeout errors can happen when reading data. To solve >>> this issue the DMA transfer has to be activated before sending the command to >>> the device. This order is incorrect in PDC mode. So we have to take care if we >>> are using DMA or PDC to know when to send the MMC command. >>> >>> Cc: #3.2+ >>> Signed-off-by: Ludovic Desroches >> >> Acked-by: Nicolas Ferre > > Thanks, pushed to mmc-next for 3.14. Nice, thank you Chris, but what about considering its inclusion in 3.13? I know that it will anyway hit the 3.13.y stable update but I do think that it would be nice to have this fix sooner in official 3.13... Bye, -- Nicolas Ferre