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ASoC: generic-dmaengine-pcm: Set BATCH flag when residue reporting is not supported

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For dmaengine drivers which do not support transfer residue reporting we update
the PCM pointer with period granularity. Set the SNDRV_PCM_INFO_BATCH flag in
this case to let userspace know about this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2013-11-30 18:00:45 +01:00 committed by Mark Brown
parent 21585ee848
commit a22f33b003
1 changed files with 3 additions and 0 deletions
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3
sound/soc/soc-generic-dmaengine-pcm.c
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@ -137,6 +137,9 @@ static int dmaengine_pcm_set_runtime_hwparams(struct snd_pcm_substream *substrea
hw.buffer_bytes_max = SIZE_MAX; hw.buffer_bytes_max = SIZE_MAX;
hw.fifo_size = dma_data->fifo_size; hw.fifo_size = dma_data->fifo_size;
if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE)
hw.info |= SNDRV_PCM_INFO_BATCH;
ret = dma_get_slave_caps(chan, &dma_caps); ret = dma_get_slave_caps(chan, &dma_caps);
if (ret == 0) { if (ret == 0) {
if (dma_caps.cmd_pause) if (dma_caps.cmd_pause)