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Date: Thu, 10 Jan 2013 10:52:56 +0200 From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> To: Vinod Koul <vinod.koul@...el.com>, linux-kernel@...r.kernel.org, Viresh Kumar <viresh.kumar@...aro.org>, spear-devel <spear-devel@...t.st.com> Subject: [PATCHv2 01/11] dmaengine: introduce is_slave_direction function This function helps to distinguish the slave type of transfer by checking the direction parameter. Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Reviewed-by: Viresh Kumar <viresh.kumar@...aro.org> Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@...aro.org> Cc: Nicolas Ferre <nicolas.ferre@...el.com> Cc: Guennadi Liakhovetski <g.liakhovetski@....de> --- include/linux/dmaengine.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 4ca9cf7..bfcdecb 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -621,6 +621,11 @@ static inline int dmaengine_slave_config(struct dma_chan *chan, (unsigned long)config); } +static inline bool is_slave_direction(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 majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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