From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Subject: Re: [PATCH V4] MXS: Implement DMA support into mxs-i2c Date: Mon, 8 Oct 2012 15:15:32 +0200 Message-ID: <201210081515.32863.marex@denx.de> References: <1345779871-7677-1-git-send-email-marex@denx.de> <20121008092530.GA22051@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20121008092530.GA22051-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Fabio Estevam , spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Shawn Guo , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org Dear Wolfram Sang, > On Fri, Aug 24, 2012 at 05:44:31AM +0200, Marek Vasut wrote: > > This patch implements DMA support into mxs-i2c. DMA transfers are now > > enabled via DT. The DMA operation is enabled by default. > > > > Signed-off-by: Marek Vasut > > Thanks, applied to -next. > > I am meanwhile thinking the driver needs massive changes +1 it does. > probably dropping PIOQUEUE entirely Yes, in favor of PIO which can do switching with DMA. > This is probably best done via incremental > patches to this one. I have sketches which were sadly not ready for this > merge-window :( Cc me when submitting, I'd like to see those. Best regards, Marek Vasut ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev From mboxrd@z Thu Jan 1 00:00:00 1970 From: marex@denx.de (Marek Vasut) Date: Mon, 8 Oct 2012 15:15:32 +0200 Subject: [PATCH V4] MXS: Implement DMA support into mxs-i2c In-Reply-To: <20121008092530.GA22051@pengutronix.de> References: <1345779871-7677-1-git-send-email-marex@denx.de> <20121008092530.GA22051@pengutronix.de> Message-ID: <201210081515.32863.marex@denx.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Dear Wolfram Sang, > On Fri, Aug 24, 2012 at 05:44:31AM +0200, Marek Vasut wrote: > > This patch implements DMA support into mxs-i2c. DMA transfers are now > > enabled via DT. The DMA operation is enabled by default. > > > > Signed-off-by: Marek Vasut > > Thanks, applied to -next. > > I am meanwhile thinking the driver needs massive changes +1 it does. > probably dropping PIOQUEUE entirely Yes, in favor of PIO which can do switching with DMA. > This is probably best done via incremental > patches to this one. I have sketches which were sadly not ready for this > merge-window :( Cc me when submitting, I'd like to see those. Best regards, Marek Vasut