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[PATCH 06/10] dma: imx-sdma: add terminate_all support

From	Jiada Wang <jiada_wang@mentor.com>
Newsgroups	linux.kernel
Subject	[PATCH 06/10] dma: imx-sdma: add terminate_all support
Date	2016-05-17 06:00 +0200
Message-ID	<rzEkN-7L0-5@gated-at.bofh.it> (permalink)
References	<rzEb7-7HI-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Implement device_terminate_all(), so that dmaengine_terminate_async()
can work.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 drivers/dma/imx-sdma.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index ef5d37c..040cbf2 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1401,6 +1401,13 @@ static void sdma_issue_pending(struct dma_chan *chan)
 		sdma_enable_channel(sdma, sdmac->channel);
 }
 
+static int sdma_terminate_all(struct dma_chan *chan)
+{
+	sdma_disable_channel(chan);
+
+	return 0;
+}
+
 #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1	34
 #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2	38
 #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3	41
@@ -1819,6 +1826,7 @@ static int sdma_probe(struct platform_device *pdev)
 	sdma->dma_device.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
 	sdma->dma_device.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 	sdma->dma_device.device_issue_pending = sdma_issue_pending;
+	sdma->dma_device.device_terminate_all = sdma_terminate_all;
 	sdma->dma_device.dev->dma_parms = &sdma->dma_parms;
 	dma_set_max_seg_size(sdma->dma_device.dev, 65535);
 
-- 
2.4.5

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[PATCH 06/10] dma: imx-sdma: add terminate_all support Jiada Wang <jiada_wang@mentor.com> - 2016-05-17 06:00 +0200

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