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ASoC: SOF: Intel: hda: make sure DMA is start/stop by read the RUN bit
authorZhu Yingjiang <yingjiang.zhu@linux.intel.com>
Wed, 12 Jun 2019 17:23:46 +0000 (12:23 -0500)
committerMark Brown <broonie@kernel.org>
Mon, 17 Jun 2019 12:46:01 +0000 (13:46 +0100)
commit7bcaf0f2cdfacca2226eee8895f64bc019d5a8be
tree84eac7972a92d3304043a78d5c3a657d7b810c54tree | snapshot
parent3a39e0eae80919a15831f66324d4530454b4f495commit | diff
ASoC: SOF: Intel: hda: make sure DMA is start/stop by read the RUN bit

As per the HW recommendation, after setting the RUN bit
(start as 1, stop as 0), software must read the bit back
to make sure the bit is set right, before modifying related
control registers/re-starting the DMA engine.

Signed-off-by: Zhu Yingjiang <yingjiang.zhu@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/sof/intel/hda-stream.c diff | blob | history
sound/soc/sof/intel/hda.h diff | blob | history
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