dma: mxs-dma: Update state after channel reset

After a channel reset, the channel stops running automatically. The
state update was missing so that a channel perperation right after a
channel reset failed.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 530267068061..f48f87feeca4 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -235,6 +235,8 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
                 writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
                         mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET);
         }
+
+        mxs_chan->status = DMA_COMPLETE;
 }
 
 static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
@@ -362,7 +364,7 @@ static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
                         chan);
                 mxs_chan->status = DMA_ERROR;
                 mxs_dma_reset_chan(mxs_chan);
-        } else {
+        } else if (mxs_chan->status != DMA_COMPLETE) {
                 if (mxs_chan->flags & MXS_DMA_SG_LOOP)
                         mxs_chan->status = DMA_IN_PROGRESS;
                 else