The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/kernel/+/9fcf7e4f29c82302767b6ac94d21f7c9c5811b98

commit 9fcf7e4f29c82302767b6ac94d21f7c9c5811b98
Author: Chris Paterson <chris.paterson2@renesas.com>
Date: Wed Feb 10 14:07:01 2016

UPSTREAM: mmc: sh_mmcif: Correct TX DMA channel allocation

Commit 27cbd7e815a8 ("mmc: sh_mmcif: rework dma channel handling")
introduced a typo causing the TX DMA channel allocation to be overwritten
by the requested RX DMA channel.

BUG= chromium:616292 
TEST=None

Fixes: 27cbd7e815a8 ("mmc: sh_mmcif: rework dma channel handling")
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

(cherry picked from commit a32ef81c9889c9554a3c4b465c4ee7b2d26c6b10)
Signed-off-by: Guenter Roeck <groeck@chromium.org>

Change-Id: I9fe96c5857da9878621a2ef9dd7a86d6edee0c37
Reviewed-on: https://chromium-review.googlesource.com/348460
Commit-Ready: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Wei-Ning Huang <wnhuang@chromium.org>

[modify] https://crrev.com/9fcf7e4f29c82302767b6ac94d21f7c9c5811b98/drivers/mmc/host/sh_mmcif.c