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Commit f967d104 authored by George Cherian's avatar George Cherian Committed by Vinod Koul
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usb: musb: musb_cppi41: Dont reprogram DMA if tear down is initiated 



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: default avatarGeorge Cherian <george.cherian@ti.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 8f83f502

drivers/usb/musb/musb_cppi41.c

+2 −1
Original line number Diff line number Diff line
@@ -119,7 +119,8 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel) 
	struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep;

	struct musb *musb = hw_ep->musb;



	if (!cppi41_channel->prog_len) {

	if (!cppi41_channel->prog_len ||

	    (cppi41_channel->channel.status == MUSB_DMA_STATUS_FREE)) {



		/* done, complete */

		cppi41_channel->channel.actual_len =