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-rw-r--r--drivers/dma/sh/rcar-dmac.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index af2f2639cec9..9dc73ac92359 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1522,7 +1522,15 @@ static irqreturn_t rcar_dmac_isr_channel(int irq, void *dev)
1522 1522
1523 chcr = rcar_dmac_chan_read(chan, RCAR_DMACHCR); 1523 chcr = rcar_dmac_chan_read(chan, RCAR_DMACHCR);
1524 if (chcr & RCAR_DMACHCR_CAE) { 1524 if (chcr & RCAR_DMACHCR_CAE) {
1525 rcar_dmac_chan_halt(chan); 1525 struct rcar_dmac *dmac = to_rcar_dmac(chan->chan.device);
1526
1527 /*
1528 * We don't need to call rcar_dmac_chan_halt()
1529 * because channel is already stopped in error case.
1530 * We need to clear register and check DE bit as recovery.
1531 */
1532 rcar_dmac_write(dmac, RCAR_DMACHCLR, 1 << chan->index);
1533 rcar_dmac_chcr_de_barrier(chan);
1526 reinit = true; 1534 reinit = true;
1527 goto spin_lock_end; 1535 goto spin_lock_end;
1528 } 1536 }