From: zonque@gmail.com (Daniel Mack)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 09/11] dma: mmp_pdma: implement DMA_PAUSE and DMA_RESUME
Date: Sat, 10 Aug 2013 18:52:23 +0200 [thread overview]
Message-ID: <1376153545-14361-10-git-send-email-zonque@gmail.com> (raw)
In-Reply-To: <1376153545-14361-1-git-send-email-zonque@gmail.com>
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 --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 579f79a..7a0956b 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -659,6 +659,12 @@ 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;
}
--
1.8.3.1
next prev parent reply other threads:[~2013-08-10 16:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-10 16:52 [PATCH v2 00/11] dma: pdma: some patches needed for PXA DT environments Daniel Mack
2013-08-10 16:52 ` [PATCH v2 01/11] dma: mmp_pdma: factor out DRCMR register calculation Daniel Mack
2013-08-10 16:52 ` [PATCH v2 02/11] dma: mmp_pdma: refactor unlocking path in lookup_phy() Daniel Mack
2013-08-10 16:52 ` [PATCH v2 03/11] dma: mmp_pdma: fix maximum transfer length Daniel Mack
2013-08-10 16:52 ` [PATCH v2 04/11] dma: mmp_pdma: add filter function Daniel Mack
2013-08-10 16:52 ` [PATCH v2 05/11] dma: mmp_pdma: make the controller a DMA provider Daniel Mack
2013-08-10 16:52 ` [PATCH v2 06/11] dma: mmp_pdma: print the number of channels at probe time Daniel Mack
2013-08-10 16:52 ` [PATCH v2 07/11] dma: mmp_pdma: remove duplicate assignment Daniel Mack
2013-08-10 16:52 ` [PATCH v2 08/11] dma: mmp_pdma: add support for byte-aligned transfers Daniel Mack
2013-08-10 16:52 ` Daniel Mack [this message]
2013-08-14 8:15 ` [PATCH v2 09/11] dma: mmp_pdma: implement DMA_PAUSE and DMA_RESUME Vinod Koul
2013-08-14 9:02 ` Daniel Mack
2013-08-14 8:30 ` Vinod Koul
2013-08-10 16:52 ` [PATCH v2 10/11] dma: mmp_pdma: add support for residue reporting Daniel Mack
2013-08-14 8:19 ` Vinod Koul
2013-08-10 16:52 ` [PATCH v2 11/11] dma: mmp_pdma: add support for cyclic DMA descriptors Daniel Mack
2013-08-10 17:18 ` [PATCH v2 00/11] dma: pdma: some patches needed for PXA DT environments Daniel Mack
2013-08-14 8:28 ` Vinod Koul
2013-08-10 21:25 ` Arnd Bergmann
2013-08-13 21:56 ` Daniel Mack
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