linux-kernel - [PATCH v4 28/58] dmaengine: moxart: Split device

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Date:	Tue, 28 Oct 2014 22:25:43 +0100
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Vinod Koul <vinod.koul@...el.com>, dmaengine@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Antoine Ténart <antoine@...e-electrons.com>,
	Russell King <linux@....linux.org.uk>, lars@...afoo.de,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: [PATCH v4 28/58] dmaengine: moxart: Split device_control

Split the device_control callback of the Moxart DMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.

Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
---
 drivers/dma/moxart-dma.c | 25 ++-----------------------
 1 file changed, 2 insertions(+), 23 deletions(-)

diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c
index 3258e484e4f6..35e1a3ab5fb8 100644
--- a/drivers/dma/moxart-dma.c
+++ b/drivers/dma/moxart-dma.c
@@ -263,28 +263,6 @@ static int moxart_slave_config(struct dma_chan *chan,
 	return 0;
 }
 
-static int moxart_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
-			  unsigned long arg)
-{
-	int ret = 0;
-
-	switch (cmd) {
-	case DMA_PAUSE:
-	case DMA_RESUME:
-		return -EINVAL;
-	case DMA_TERMINATE_ALL:
-		moxart_terminate_all(chan);
-		break;
-	case DMA_SLAVE_CONFIG:
-		ret = moxart_slave_config(chan, (struct dma_slave_config *)arg);
-		break;
-	default:
-		ret = -ENOSYS;
-	}
-
-	return ret;
-}
-
 static struct dma_async_tx_descriptor *moxart_prep_slave_sg(
 	struct dma_chan *chan, struct scatterlist *sgl,
 	unsigned int sg_len, enum dma_transfer_direction dir,
@@ -531,7 +509,8 @@ static void moxart_dma_init(struct dma_device *dma, struct device *dev)
 	dma->device_free_chan_resources		= moxart_free_chan_resources;
 	dma->device_issue_pending		= moxart_issue_pending;
 	dma->device_tx_status			= moxart_tx_status;
-	dma->device_control			= moxart_control;
+	dma->device_config			= moxart_slave_config;
+	dma->device_terminate_all		= moxart_terminate_all;
 	dma->dev				= dev;
 
 	INIT_LIST_HEAD(&dma->channels);
-- 
2.1.1

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