From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH 1/1] mmc: host: enable OMAP DMA engine support for omap hosts by default Date: Thu, 19 Jul 2012 04:31:17 -0700 Message-ID: <20120719113116.GM6522@atomide.com> References: <1342485005-5178-1-git-send-email-javier@dowhile0.org> <20120718065951.GH6522@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-01-ewr.mailhop.org ([204.13.248.71]:35891 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752972Ab2GSLbX (ORCPT ); Thu, 19 Jul 2012 07:31:23 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Javier Martinez Canillas Cc: Javier Martinez Canillas , "Shilimkar, Santosh" , Kevin.Hilman.khilman@ti.com, Russell King , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chris Ball , linux-mmc@vger.kernel.org * Javier Martinez Canillas [120718 01:31]: > That was my first approach in fact, I sent this patch: > https://patchwork.kernel.org/patch/1198401/ > > But then was told by Kevin Hilman that the right solution was to do > the select on the drives to fix not only omap2plus_defconfig but any > config. > So I sent this patch and Santosh agrees with Kevin. > > I don't really know the hardware nor the driver well enough to have a > strong position on this. Ideally we would not select it or have depends on it. DMA channels can run out, and drivers need to work also without DMA. For doing distro kernels, building everything as modules should be an option rather than forcing to build in all kinds of code. Regards, Tony From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Thu, 19 Jul 2012 04:31:17 -0700 Subject: [PATCH 1/1] mmc: host: enable OMAP DMA engine support for omap hosts by default In-Reply-To: References: <1342485005-5178-1-git-send-email-javier@dowhile0.org> <20120718065951.GH6522@atomide.com> Message-ID: <20120719113116.GM6522@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Javier Martinez Canillas [120718 01:31]: > That was my first approach in fact, I sent this patch: > https://patchwork.kernel.org/patch/1198401/ > > But then was told by Kevin Hilman that the right solution was to do > the select on the drives to fix not only omap2plus_defconfig but any > config. > So I sent this patch and Santosh agrees with Kevin. > > I don't really know the hardware nor the driver well enough to have a > strong position on this. Ideally we would not select it or have depends on it. DMA channels can run out, and drivers need to work also without DMA. For doing distro kernels, building everything as modules should be an option rather than forcing to build in all kinds of code. Regards, Tony