Messages in this thread Patch in this message | | | From | Qiao Zhou <> | Subject | [PATCH V2] dma: mmp_tdma: disable irq when disabling dma channel | Date | Sat, 15 Jun 2013 12:51:48 +0800 |
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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> --- drivers/dma/mmp_tdma.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index 43d5a6c..9b93665 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -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; } -- 1.7.0.4
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