[PATCH] ASoC: soc-generic-dmaengine-pcm: use dmaengine_get_dma_device() for DMA device

[PATCH] ASoC: soc-generic-dmaengine-pcm: use dmaengine_get_dma_device() for DMA device

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@nxp.com>

Replace chan->device->dev with dmaengine_get_dma_device(chan) in
dmaengine_dma_dev() so that DMA buffer allocation and mapping go
through the correct device when the DMA controller has per-channel
IOMMU domains (chan_dma_dev=true).

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 sound/soc/soc-generic-dmaengine-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 6d1dbee8f6c14..f6206ecaf26fe 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -32,7 +32,7 @@ static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm,
 	if (!pcm->chan[substream->stream])
 		return NULL;
 
-	return pcm->chan[substream->stream]->device->dev;
+	return dmaengine_get_dma_device(pcm->chan[substream->stream]);
 }
 
 /**

---
base-commit: f5f84daefcd92d7a630066635ecea1433ed5eac7
change-id: 20260927-sound-dma-eca4f6b9faf7

Best regards,
--  
Peng Fan <peng.fan@nxp.com>

Re: [PATCH] ASoC: soc-generic-dmaengine-pcm: use dmaengine_get_dma_device() for DMA device

[Mark Brown]

On Sun, 27 Sep 2026 09:36:23 +0800, Peng Fan (OSS) wrote:
> ASoC: soc-generic-dmaengine-pcm: use dmaengine_get_dma_device() for DMA device

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-7.4

Thanks!

[1/1] ASoC: soc-generic-dmaengine-pcm: use dmaengine_get_dma_device() for DMA device
      https://git.kernel.org/broonie/sound/c/7103a8c7b2ce

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark