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 04:32:47 -0700 Message-ID: <20120719113246.GN6522@atomide.com> References: <20120718065951.GH6522@atomide.com> <20120718071039.GI6522@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]:36856 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750782Ab2GSLcv (ORCPT ); Thu, 19 Jul 2012 07:32:51 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: "Shilimkar, Santosh" Cc: "S, Venkatraman" , Javier Martinez Canillas , Javier Martinez Canillas , Kevin Hilman , Russell King , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chris Ball , linux-mmc@vger.kernel.org * Shilimkar, Santosh [120718 02:49]: > > "The patch simply make them depend on DMA_OMAP since DMA_OMAP > will select DMA_ENGINE automatically" > > This won't be true if the DMA selection are not done > at ARCH_OMAP level as discussed in this thread. > > Having said that, I think Russell and Tony need to > take call on how this needs to be handled. As the DMA channels can run out, drivers should also work without DMA. And building everything as modules should be possible for the distro kernels. So I'd rather not have either select or depends and have the drivers fixed. Tony From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Thu, 19 Jul 2012 04:32:47 -0700 Subject: [PATCH 1/1] mmc: host: enable OMAP DMA engine support for omap hosts by default In-Reply-To: References: <20120718065951.GH6522@atomide.com> <20120718071039.GI6522@atomide.com> Message-ID: <20120719113246.GN6522@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Shilimkar, Santosh [120718 02:49]: > > "The patch simply make them depend on DMA_OMAP since DMA_OMAP > will select DMA_ENGINE automatically" > > This won't be true if the DMA selection are not done > at ARCH_OMAP level as discussed in this thread. > > Having said that, I think Russell and Tony need to > take call on how this needs to be handled. As the DMA channels can run out, drivers should also work without DMA. And building everything as modules should be possible for the distro kernels. So I'd rather not have either select or depends and have the drivers fixed. Tony