diff options
| author | Mark Brown <broonie@linaro.org> | 2013-08-15 11:37:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-08-15 11:37:38 +0100 |
| commit | 743c5bb898be45009770c144e5e14e4f448e56b9 (patch) | |
| tree | 40fff57c975f89da4a90922c165595840e99093a /sound/soc/omap/omap-pcm.c | |
| parent | 8fe120b5a665fc869c23f86e4964b801f6e53486 (diff) | |
| parent | b7ae6f31d8243ec684af16bc5c763eccdfabaec0 (diff) | |
Merge branch 'topic/dma' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-omap
Conflicts:
sound/soc/omap/Kconfig
Diffstat (limited to 'sound/soc/omap/omap-pcm.c')
| -rw-r--r-- | sound/soc/omap/omap-pcm.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index c28e042f220..a11405de86e 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -113,14 +113,25 @@ static int omap_pcm_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_dmaengine_dai_dma_data *dma_data; + int ret; snd_soc_set_runtime_hwparams(substream, &omap_pcm_hardware); dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - return snd_dmaengine_pcm_open_request_chan(substream, - omap_dma_filter_fn, - dma_data->filter_data); + /* DT boot: filter_data is the DMA name */ + if (rtd->cpu_dai->dev->of_node) { + struct dma_chan *chan; + + chan = dma_request_slave_channel(rtd->cpu_dai->dev, + dma_data->filter_data); + ret = snd_dmaengine_pcm_open(substream, chan); + } else { + ret = snd_dmaengine_pcm_open_request_chan(substream, + omap_dma_filter_fn, + dma_data->filter_data); + } + return ret; } static int omap_pcm_mmap(struct snd_pcm_substream *substream, |