ARC: Elide redundant setup of DMA callbacks
[ Upstream commit 45c3b08a ] For resources shared by all cores such as SLC and IOC, only the master core needs to do any setups / enabling / disabling etc. Cc: <stable@vger.kernel.org> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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