soundwire: bus: add clock stop helpers

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SoundWire supports two clock stop modes. Add support to handle the
clock stop modes and add pm_runtime calls in the bus.

Credits: this patch is based on an earlier internal contribution by
Vinod Koul, Sanyog Kale, Shreyas Nc and Hardik Shah.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200115000844.14695-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Rander Wang 2020-01-14 18:08:43 -06:00 • committed by Vinod Koul

parent aa79293517

commit 0231453bc0

2 changed files with 356 additions and 0 deletions

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332

drivers/soundwire/bus.c

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24

include/linux/soundwire/sdw.h

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