tree dee2becb3fa3233101a79004175d76f0d4162963
parent 2c800e3ba7f6b43db5782c8b57bc47647a834215
author randerwang <rander.wang@linux.intel.com> 1584462809 -0500
committer Vinod Koul <vkoul@kernel.org> 1584601985 +0530

soundwire: cadence: clear FIFO to avoid pop noise issue on playback start

Driver should clear FIFO in PDI, or the previously stored sample data
in FIFO will generate pop noise when stream is started. The soft reset
bit will clear all the FIFO to zero and is self-cleared after that.

Signed-off-by: randerwang <rander.wang@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200317163329.25501-18-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>