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ASoC: Intel: Fix Audio DSP usage when IOMMU is enabled.

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The Intel IOMMU requires that the ACPI device is used to allocate all
DMA memory buffers. This means we need to pass the DMA device pointer into child
component devices that allocate DMA memory.

We also only set the DMA mask for the ACPI device now instead of for each
component device.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Liam Girdwood
2014-05-02 16:56:31 +01:00
committed by Mark Brown
parent 0b708c87f6
commit 10df350977
7 changed files with 12 additions and 15 deletions
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1
sound/soc/intel/sst-dsp.c
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@@ -337,6 +337,7 @@ struct sst_dsp *sst_dsp_new(struct device *dev,
spin_lock_init(&sst->spinlock);
mutex_init(&sst->mutex);
sst->dev = dev;
sst->dma_dev = pdata->dma_dev;
sst->thread_context = sst_dev->thread_context;
sst->sst_dev = sst_dev;
sst->id = pdata->id;