diff options
| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2015-02-09 18:21:27 +0800 |
|---|---|---|
| committer | Shengjiu Wang <shengjiu.wang@freescale.com> | 2015-02-10 11:09:17 +0800 |
| commit | f403628ef48e56c77bdf4d5df23e8b37fea0fc34 (patch) | |
| tree | 01708d1d516b87cf43306756f4925f1b7ba1fbb2 /sound | |
| parent | 83a61c8270be4690e076445a3f72505011175c82 (diff) | |
MLK-10213-2: ASoC: dmaengine: Merge trigger RESUME to START and SUSPEND to STOP
Merged from 2a17c1bbcd83a9d9f6d07bc0545742a59a043ae4
The SDMA driver doesn't support DMA_PAUSE and DMA_RESUME commands.
So this patch use TRIGGER_START for TRIGGER_RESUME and TRIGGER_SUSPEND
for TRIGGER_STOP as a work around so that Audio can normally stop
and restart its corresponding DMA channels.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/pcm_dmaengine.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c index fe527cff3e2b..1b1683253b06 100644 --- a/sound/core/pcm_dmaengine.c +++ b/sound/core/pcm_dmaengine.c @@ -5,7 +5,7 @@ * Based on: * imx-pcm-dma-mx2.c, Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de> * mxs-pcm.c, Copyright (C) 2011 Freescale Semiconductor, Inc. - * imx-pcm-dma.c, Copyright (C) 2014 Freescale Semiconductor, Inc. + * imx-pcm-dma.c, Copyright (C) 2014-2015 Freescale Semiconductor, Inc. * ep93xx-pcm.c, Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> * Copyright (C) 2006 Applied Data Systems * @@ -183,20 +183,16 @@ int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd) switch (cmd) { case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: ret = dmaengine_pcm_prepare_and_submit(substream); if (ret) return ret; dma_async_issue_pending(prtd->dma_chan); break; - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - dmaengine_resume(prtd->dma_chan); - break; + case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - dmaengine_pause(prtd->dma_chan); - break; - case SNDRV_PCM_TRIGGER_STOP: dmaengine_terminate_all(prtd->dma_chan); break; default: |