This patch looks like it should be in the 3.9-stable tree, should we apply
it?
------------------
From: "Qiao Zhou <zhouqiao@xxxxxxxxxxx>"
commit 8e3c518fba4f2ddd192171cbd7b23ec26900bf6b upstream
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@xxxxxxxxxxx>
Acked-by: Zhangfei Gao <zhangfei.gao@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
Signed-off-by: Jonghwan Choi <jhbird.choi@xxxxxxxxxxx>
---
drivers/dma/mmp_tdma.c | 4 ++++
1 file changed, 4 insertions(+)
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;
}
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html