If DMA resource is not available then SDCC driver
should atleast work in PIO data transfer mode.
Signed-off-by: NSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: NSahitya Tummala <stummala@codeaurora.org>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>
Signed-off-by: NChris Ball <cjb@laptop.org>