Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753221Ab3FJJPM (ORCPT ); Mon, 10 Jun 2013 05:15:12 -0400 Received: from mail-ea0-f171.google.com ([209.85.215.171]:37933 "EHLO mail-ea0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752715Ab3FJJPJ (ORCPT ); Mon, 10 Jun 2013 05:15:09 -0400 Date: Mon, 10 Jun 2013 10:15:03 +0100 From: Lee Jones To: Linus Walleij Cc: "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Felipe Balbi , "linux-usb@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "David S. Miller" , Herbert Xu , Vinod Koul , Linus WALLEIJ , Arnd Bergmann , Srinidhi KASAGAR Subject: Re: [PATCH 05/39] ARM: ux500: Stop passing MMC's platform data for Device Tree boots Message-ID: <20130610091503.GF20297@gmail.com> References: <1368611522-9984-1-git-send-email-lee.jones@linaro.org> <1368611522-9984-6-git-send-email-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1311 Lines: 34 On Wed, 15 May 2013, Linus Walleij wrote: > On Wed, May 15, 2013 at 11:51 AM, Lee Jones wrote: > > > It was required to pass DMA channel configuration information to the > > MMC driver before the new DMA API was in place. Now that it is, and > > is fully compatible with Device Tree we can stop doing that. > > > > Reviewed-by: Linus Walleij > > Signed-off-by: Lee Jones > > So since the use of dma_request_slave_channel() is not upstream, > I guess this will break DMA use (i.e slow down transfers!) on all > device tree boots? > > I'd be happy to apply it once the MMCI patch is in linux-next > indicating there may just be a window in the merge period > where it falls back to IRQ mode, but I don't want to disable > DMA on DT boots for an entire kernel cycle just like that. > > Not applied as of yet. I believe it's now okay to apply this. -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/