From mboxrd@z Thu Jan 1 00:00:00 1970 From: b29396@freescale.com (Dong Aisheng) Date: Tue, 19 Jul 2011 12:09:56 +0800 Subject: [PATCH 1/1] ARM: mxs-dma: reset after disable channel Message-ID: <1311048596-19932-1-git-send-email-b29396@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org We met some channels in abnormal state after disable. Reset it to get a clean state. Signed-off-by: Dong Aisheng Cc: Vinod Koul Cc: Shawn Guo --- drivers/dma/mxs-dma.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index 88aad4f..5a24010 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -535,6 +535,7 @@ static int mxs_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, switch (cmd) { case DMA_TERMINATE_ALL: mxs_dma_disable_chan(mxs_chan); + mxs_dma_reset_chan(mxs_chan); break; case DMA_PAUSE: mxs_dma_pause_chan(mxs_chan); -- 1.7.0.4