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