tree d3d7bb12cbabce20789671d07055e305b8138c1a
parent 32d317c60e56c2a34463b51fc0336cc96b3e1735
author Seungwon Jeon <tgih.jun@samsung.com> 1334019212 +0900
committer Chris Ball <cjb@laptop.org> 1334968237 -0400

mmc: dw_mmc: Fix switch from DMA to PIO

When dw_mci_pre_dma_transfer returns failure in some reasons,
dw_mci_submit_data will prepare to switch the PIO mode from DMA.
After switching to PIO mode, DMA(IDMAC in particular) is still
enabled. This makes the corruption in handling interrupt and
the driver lock-up.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>