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When commit 6f166312c6ea2 ("dmaengine: mv_xor: add support for a38x
command in descriptor mode") added support for the descriptor mode
available in Marvell Armada 38x and later SoCs, it added a new
function mv_chan_set_mode_to_desc() which allows to configure a XOR
channel to get the specific operation to be done from each individual
DMA descriptor.
However, this function was mainly a duplicate of the existing
mv_chan_set_mode(), with just the operation being different.
This commit re-organizes the code into a single mv_chan_set_mode()
function, which takes the operation mode as argument, and the
mv_xor_channel_add() function decides whether to use
XOR_OPERATION_MODE_IN_DESC or XOR_OPERATION_MODE_XOR.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
81aafb3e0e