The documentation states one should make sure both DE and TE are cleared
before starting a transaction. This patch extends the current warning to
look at both DE and TE.
Based on previous work from Muhammad Hamza Farooq.
Suggested-by: Muhammad Hamza Farooq <mfarooq@xxxxxxxxxxx>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
drivers/dma/sh/rcar-dmac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 791a064..7f26576 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -311,7 +311,7 @@ static bool rcar_dmac_chan_is_busy(struct rcar_dmac_chan *chan)
{
u32 chcr = rcar_dmac_chan_read(chan, RCAR_DMACHCR);
- return (chcr & (RCAR_DMACHCR_DE | RCAR_DMACHCR_TE)) == RCAR_DMACHCR_DE;
+ return !!(chcr & (RCAR_DMACHCR_DE | RCAR_DMACHCR_TE));
}
static void rcar_dmac_chan_start_xfer(struct rcar_dmac_chan *chan)
--
2.8.3
