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ASoC: Intel: Use ACPI device for Baytrail PCM buffer allocation

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This follows the same idea than commit 10df350977
("ASoC: Intel: Fix Audio DSP usage when IOMMU is enabled.") by using only
ACPI device for all DMA allocations. Since DMA masking is already done in
firmware loading it can be removed from here.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Jarkko Nikula 2014-05-09 16:47:44 +03:00 committed by Mark Brown
parent 6fb8b02b4b
commit dfe1951b0c
1 changed files with 3 additions and 5 deletions
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8
sound/soc/intel/sst-baytrail-pcm.c
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@ -319,18 +319,16 @@ static int sst_byt_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_pcm *pcm = rtd->pcm;
size_t size;
struct snd_soc_platform *platform = rtd->platform;
struct sst_pdata *pdata = dev_get_platdata(platform->dev);
int ret = 0;
ret = dma_coerce_mask_and_coherent(rtd->card->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
size = sst_byt_pcm_hardware.buffer_bytes_max;
ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_DEV,
rtd->card->dev,
pdata->dma_dev,
size, size);
if (ret) {
dev_err(rtd->dev, "dma buffer allocation failed %d\n",