On Wed, 15 May 2013, Linus Walleij wrote: > On Wed, May 15, 2013 at 11:51 AM, Lee Jones <lee.jones@xxxxxxxxxx> 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 <linus.walleij@xxxxxxxxxx> > > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> > > 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-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
