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Unverified Commit 88639051 authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Mark Brown
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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: default avatarVijendar Mukunda <vijendar.mukunda@amd.com>
Link: https://lore.kernel.org/r/1564753899-17124-1-git-send-email-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b9da500b

sound/soc/amd/raven/acp3x-pcm-dma.c

+4 −2
Original line number Diff line number Diff line
@@ -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)

{

	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,

					      rtd->pcm->card->dev,

					      MIN_BUFFER, MAX_BUFFER);

					      parent, MIN_BUFFER, MAX_BUFFER);

	return 0;

}