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Subject[PATCH 1/4 v3] dmaengine: add async_tx_clear_ack() macro
From: Guennadi Liakhovetski <lg@denx.de>

To complete the DMA_CTRL_ACK handling API add a async_tx_clear_ack() macro.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
---
include/linux/dmaengine.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 64dea2a..c820a3f 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -287,6 +287,11 @@ static inline void async_tx_ack(struct dma_async_tx_descriptor *tx)
tx->flags |= DMA_CTRL_ACK;
}

+static inline void async_tx_clear_ack(struct dma_async_tx_descriptor *tx)
+{
+ tx->flags &= ~DMA_CTRL_ACK;
+}
+
static inline bool async_tx_test_ack(struct dma_async_tx_descriptor *tx)
{
return (tx->flags & DMA_CTRL_ACK) == DMA_CTRL_ACK;
--
1.5.4


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