Commit 8e3c518f authored Jun 15, 2013 by Qiao Zhou Committed by Vinod Koul Jul 05, 2013

dma: mmp_tdma: disable irq when disabling dma channel



mask dma irq when disabling dma channel, so that interrupt status
will not be set and interrupt won't come again.

Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Zhangfei Gao <zhangfei.gao@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent d7cabeed

drivers/dma/mmp_tdma.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -154,6 +154,10 @@ static void mmp_tdma_disable_chan(struct mmp_tdma_chan *tdmac)
		{
		writel(readl(tdmac->reg_base + TDCR) & ~TDCR_CHANEN,
		tdmac->reg_base + TDCR);

		/* disable irq */
		writel(0, tdmac->reg_base + TDIMR);

		tdmac->status = DMA_SUCCESS;
		}