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aecbc31d76
Reprogramming the DMA after tear down is initiated leads to warning. This is mainly seen with ISOCH since we do a delayed completion for ISOCH transfers. In ISOCH transfers dma_completion should not reprogram if the channel tear down is initiated. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>