This function helps to distinguish the slave type of transfer by checking the direction parameter.
Signed-off-by: Andy Shevchenko <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Mika Westerberg <[email protected]> Cc: Nicolas Ferre <[email protected]> Cc: Guennadi Liakhovetski <[email protected]> Cc: Linus Walleij <[email protected]> --- include/linux/dmaengine.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 6402b18..3e1a9026 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -618,6 +618,11 @@ static inline int dmaengine_slave_config(struct dma_chan *chan, (unsigned long)config); } +static inline bool is_slave_xfer(enum dma_transfer_direction direction) +{ + return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM); +} + static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single( struct dma_chan *chan, dma_addr_t buf, size_t len, enum dma_transfer_direction dir, unsigned long flags) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
