dmaengine/dw_dmac: Don't handle block interrupts
Block interrupts give interrupt on completion of every LLI, which is actually too much interrupts. This is just not required for current functioning of dw_dmac. So, just don't handle them at all. Signed-off-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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