diff mbox

[10/12] dma: mmp_pdma: implement DMA_PAUSE and DMA_RESUME

Message ID 1375870770-14263-11-git-send-email-zonque@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Daniel Mack Aug. 7, 2013, 10:19 a.m. UTC 
This is needed at least for audio operation.

Signed-off-by: Daniel Mack <zonque@gmail.com>
---
 drivers/dma/mmp_pdma.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox

Patch

diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 7eb235b..c56da7c 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -658,6 +658,12 @@  static int mmp_pdma_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd,
 		if (cfg->slave_id)
 			chan->drcmr = cfg->slave_id;
 		break;
+	case DMA_PAUSE:
+		disable_chan(chan->phy);
+		break;
+	case DMA_RESUME:
+		start_pending_queue(chan);
+		break;
 	default:
 		return -ENOSYS;
 	}