diff mbox

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

Message ID 1463387878-7643-7-git-send-email-jiada_wang@mentor.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Wang, Jiada May 16, 2016, 8:37 a.m. UTC 
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(+)
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Patch

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);