drivers/leds/leds-renesas-tpu.c: update driver to use workqueue
Use a workqueue in the Renesas TPU LED driver to allow the Runtime PM code to sleep. Signed-off-by: NMagnus Damm <damm@opensource.se> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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