soundwire: cadence_master: add hw_reset capability in debugfs

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Provide debugfs capability to kick link and devices into hard-reset
(as defined by MIPI). This capability is really useful when some
devices are no longer responsive and/or to check the software handling
of resynchronization.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191022235448.17586-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Pierre-Louis Bossart 2019-10-22 18:54:45 -05:00 • committed by Vinod Koul

parent 49ea07d33d

commit 675d4c9aba

1 changed files with 23 additions and 0 deletions

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drivers/soundwire/cadence_master.c

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