From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Ball Subject: Re: [PATCH] mmc: Added quirks for Ricoh 1180:e823 lower base clock frequency Date: Wed, 13 Jul 2011 12:50:56 -0400 Message-ID: References: <1310419715-13254-1-git-send-email-manoj.iyer@canonical.com> <201107131835.25217.arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <201107131835.25217.arnd@arndb.de> (Arnd Bergmann's message of "Wed, 13 Jul 2011 18:35:25 +0200") Sender: linux-kernel-owner@vger.kernel.org To: Arnd Bergmann Cc: Manoj Iyer , linux-kernel@vger.kernel.org, jbarnes@virtuousgeek.org, matsumur@nts.ricoh.co.jp, linux-pci@vger.kernel.org, linux-mmc@vger.kernel.org List-Id: linux-mmc@vger.kernel.org Hi, On Wed, Jul 13 2011, Arnd Bergmann wrote: > Not much. This card only has a 6MB/s write speed, which is well below > what a 50 MHz bus can do. It mgiht be different on a fast eMMC device > or a Sandisk Extreme Pro UHS-1 card. Okay, I see. I think we're good for now, then -- hopefully anyone using a UHS card on their laptop will see the printk when wondering why their performance isn't great and get in touch with us, and we can investigate more then. I've pushed Manoj's patch to mmc-next for 3.1 now, with the printk changes and a stable@ tag. Thanks again, - Chris. -- Chris Ball One Laptop Per Child