From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Mon, 10 Jun 2013 10:15:03 +0100 Subject: [PATCH 05/39] ARM: ux500: Stop passing MMC's platform data for Device Tree boots In-Reply-To: References: <1368611522-9984-1-git-send-email-lee.jones@linaro.org> <1368611522-9984-6-git-send-email-lee.jones@linaro.org> Message-ID: <20130610091503.GF20297@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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