ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused

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commit 88e98af9f4 upstream.

When suspended, the DMA channel may enter PAUSE state if dmaengine_pause()
is supported by DMA.
At this state, dmaengine_synchronize() should not be called, otherwise
the DMA channel can't be resumed successfully.

Fixes: e8343410dd ("ALSA: dmaengine: Synchronize dma channel after drop()")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/1721198693-27636-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Shengjiu Wang 2024-07-17 14:44:53 +08:00 • committed by Greg Kroah-Hartman

parent 6782e4f60e

commit 0dbe2b3bb3

1 changed files with 5 additions and 1 deletions

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sound/core/pcm_dmaengine.c

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