linux-kernel - [PATCHv2 5/6] dma: ipu_idmac: reuse is_slave

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Message-Id: <1353081126-17995-6-git-send-email-andriy.shevchenko@linux.intel.com>
Date:	Fri, 16 Nov 2012 17:52:04 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Vinod Koul <vinod.koul@...el.com>,
	spear-devel <spear-devel@...t.st.com>,
	linux-kernel@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Guennadi Liakhovetski <g.liakhovetski@....de>
Subject: [PATCHv2 5/6] dma: ipu_idmac: reuse is_slave_xfer helper

The is_slave_xfer helps to check if the transfer type is slave.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Viresh Kumar <viresh.kumar@...aro.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@....de>
---
 drivers/dma/ipu/ipu_idmac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 6585537..c8d0254 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1347,7 +1347,7 @@ static struct dma_async_tx_descriptor *idmac_prep_slave_sg(struct dma_chan *chan
 	    chan->chan_id != IDMAC_IC_7)
 		return NULL;
 
-	if (direction != DMA_DEV_TO_MEM && direction != DMA_MEM_TO_DEV) {
+	if (!is_slave_xfer(direction)) {
 		dev_err(chan->device->dev, "Invalid DMA direction %d!\n", direction);
 		return NULL;
 	}
-- 
1.7.10.4

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