From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux Subject: Re: [PATCH RFC 07/31] mmc: sdhci: push card_tasklet into threaded irq handler Date: Wed, 19 Feb 2014 09:43:22 +0000 Message-ID: <20140219094322.GR21483@n2100.arm.linux.org.uk> References: <20140218150801.GD21483@n2100.arm.linux.org.uk> <20140218175703.GJ21483@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Viresh Kumar Cc: Pratyush Anand , Viresh Kumar , Mohit KUMAR , spear-devel , linux-mmc@vger.kernel.org, Chris Ball , "linux-arm-kernel@lists.infradead.org" List-Id: linux-mmc@vger.kernel.org On Wed, Feb 19, 2014 at 11:43:19AM +0530, Viresh Kumar wrote: > Adding ST people as well who have access to boards and are working on SPEAr. > > On 18 February 2014 23:27, Russell King - ARM Linux > wrote: > > 1) You're controlling the card power GPIO via the insertion/removal > > interrupt handler? What's wrong with using a vmmc regulator for > > that, which will be controlled via the MMC subsystem as required? > > Haven't explored that earlier.. Maybe its possible but no idea. > The requirements were like this: > - We may or maynot need a GPIO for controlling power > - If we need it, we may need to disable/enable power with card removal/ > insertion Or we may need to keep it enabled for ever.. So how is this any different from any other system which controls power to the MMC/SD socket? -- FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. Estimate before purchase was "up to 13.2Mbit".