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Commit c36a0176 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Vinod Koul
Browse files

dmaengine: hsu: don't check direction of timeouted channel 



The timeout capability is only available on the so called DMA write channels,
i.e. associated with UART Rx FIFO. It means we don't need to check the
direction of the channel to handle timeouts.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 2d4d689f

drivers/dma/hsu/hsu.c

+1 −1
Original line number Diff line number Diff line
@@ -160,7 +160,7 @@ irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr) 
		return IRQ_NONE;



	/* Timeout IRQ, need wait some time, see Errata 2 */

	if (hsuc->direction == DMA_DEV_TO_MEM && (sr & HSU_CH_SR_DESCTO_ANY))

	if (sr & HSU_CH_SR_DESCTO_ANY)

		udelay(2);



	sr &= ~HSU_CH_SR_DESCTO_ANY;