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3ec7699d3bb1b0ee7 ("mmc: dw_mmc: Add support for pre_req and post_req")
broke non-IDMAC DMA, because dw_mci_pre_dma_transfer() is valid only if
using internal DMA. In case of using other DMA it returns -ENOSYS. It
prevents the DMA operations. This patch makes dw_mci_pre_dma_transfer()
effective in all DMA cases again.
Reported-by: James Hogan <james@albanarts.com>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
885c3e800c