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ASoC: amd: acp3x: use dma_ops of parent device for acp3x dma driver 

AMD platform device acp3x_rv_i2s created by parent PCI device
driver. Pass struct device of the parent to
snd_pcm_lib_preallocate_pages() so dma_alloc_coherent() can use
correct dma_ops. Otherwise, it will use default dma_ops which
is nommu_dma_ops on x86_64 even when IOMMU is enabled and
set to non passthrough mode.

Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
Link: https://lore.kernel.org/r/1564753899-17124-1-git-send-email-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2019-08-02 19:21:23 +05:30 committed by Mark Brown
parent b9da500bde
commit 8863905101
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 2 deletions
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6
sound/soc/amd/raven/acp3x-pcm-dma.c
View File

@ -385,9 +385,11 @@ static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_pcm_substream *substream)
static int acp3x_dma_new(struct snd_soc_pcm_runtime *rtd) static int acp3x_dma_new(struct snd_soc_pcm_runtime *rtd)
{ {
struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd,
DRV_NAME);
struct device *parent = component->dev->parent;
snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
rtd->pcm->card->dev, parent, MIN_BUFFER, MAX_BUFFER);
MIN_BUFFER, MAX_BUFFER);
return 0; return 0;
} }