Sonny, On Mon, Oct 6, 2014 at 10:53 AM, Sonny Rao <sonnyrao@xxxxxxxxxxxx> wrote: > We've already got a reset of DMA after it's done. Add one before we > start DMA too. This fixes a data corruption on Rockchip SoCs which > will get bad data when doing a DMA transfer after doing a PIO transfer. > > We tested this on an Exynos 5800 with HS200 and didn't notice any > difference in sequential read throughput. > > Signed-off-by: Sonny Rao <sonnyrao@xxxxxxxxxxxx> > Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx> > --- > drivers/mmc/host/dw_mmc.c | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Doug Anderson <dianders@xxxxxxxxxxxx> Tested-by: Doug Anderson <dianders@xxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
