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| author | Mark Brown <broonie@linaro.org> | 2013-10-19 14:13:04 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-10-23 12:57:12 +0100 |
| commit | d7711dc5930ced241c4f6e9b14df2a92814f9f12 (patch) | |
| tree | 8b36a48c260ecbd2f67bcf5877bc1e1ab423effd | |
| parent | 511e30331745e0c3452b89354a4b94c0e60f15a4 (diff) | |
| download | linux-d7711dc5930ced241c4f6e9b14df2a92814f9f12.tar.gz linux-d7711dc5930ced241c4f6e9b14df2a92814f9f12.tar.bz2 linux-d7711dc5930ced241c4f6e9b14df2a92814f9f12.zip | |
ASoC: ep93xx: Open code dma channel request
Currently the ep93xx DMA code is one of the few users relying on the fact
that the compat code uses the dma_data as the filter data for non-DT
channel requests. Since the rest of the core expects this to be a struct
snd_dmaengine_dai_data this isn't terribly helpful this will be changed to
use the already existing filter data so avoid breaking ep93xx by open
coding the current behaviour.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
| -rw-r--r-- | sound/soc/cirrus/ep93xx-pcm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c index 0e9f56e0d4b2..cfe517e68009 100644 --- a/sound/soc/cirrus/ep93xx-pcm.c +++ b/sound/soc/cirrus/ep93xx-pcm.c @@ -57,9 +57,22 @@ static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param) return false; } +static struct dma_chan *ep93xx_compat_request_channel( + struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_substream *substream) +{ + struct snd_dmaengine_dai_dma_data *dma_data; + + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + + return snd_dmaengine_pcm_request_channel(ep93xx_pcm_dma_filter, + dma_data); +} + static const struct snd_dmaengine_pcm_config ep93xx_dmaengine_pcm_config = { .pcm_hardware = &ep93xx_pcm_hardware, .compat_filter_fn = ep93xx_pcm_dma_filter, + .compat_request_channel = ep93xx_compat_request_channel, .prealloc_buffer_size = 131072, }; |