Commit f403628e by Shengjiu Wang

MLK-10213-2: ASoC: dmaengine: Merge trigger RESUME to START and SUSPEND to STOP

Merged from 2a17c1bb 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: 's avatarShengjiu Wang <shengjiu.wang@freescale.com>
parent 83a61c82
......@@ -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:
......
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