From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaud Patard (Rtp) Subject: Re: [PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5 Date: Tue, 14 Jun 2011 13:13:29 +0200 Message-ID: <87ei2wk6na.fsf@lebrac.rtp-net.org> References: <1307702572-22066-1-git-send-email-shawn.guo@linaro.org> <20110614064841.GB30295@S2100-06.ap.freescale.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from lebrac.rtp-net.org ([88.191.135.105]:51133 "EHLO lebrac.rtp-net.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752952Ab1FNLNk (ORCPT ); Tue, 14 Jun 2011 07:13:40 -0400 In-Reply-To: <20110614064841.GB30295@S2100-06.ap.freescale.net> (Shawn Guo's message of "Tue, 14 Jun 2011 14:48:42 +0800") Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Shawn Guo Cc: Wolfram Sang , Eric Benard , patches@linaro.org, linux-mmc@vger.kernel.org, kernel@pengutronix.de, Chris Ball , linux-arm-kernel@lists.infradead.org Shawn Guo writes: Hi, > On Fri, Jun 10, 2011 at 06:42:48PM +0800, Shawn Guo wrote: >> The card-present polling within sdhci based driver is very expensive >> in terms of the impact to system performance. We observe a few >> system performance issues from Freescale and Linaro on mx5 platforms, >> which have been proved card polling related. >> >> The patch set extends the current sdhci-esdhc-imx card_detect and >> write_protect support to cover mx5 platforms, and solves above >> performance issues. >> >> Shawn Guo (4): >> mmc: sdhci: fix interrupt storm from card detection >> mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared >> mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP >> mmc: sdhci-esdhc-imx: extend card_detect and write_protect support >> > Hi Arnaud, > > Any chance to play with it yet? I tried applying the patch 4 (v2) on mmc git and Sascha Hauer's for-next branch and failed. Can you please tell me on which tree should I apply it ? Thanks, Arnaud