regmap: add iopoll-like polling macro

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This patch adds a macro regmap_read_poll_timeout that works similar
to the readx_poll_timeout defined in linux/iopoll.h, except that this
can also return the error value returned by a failed regmap_read.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Philipp Zabel 2016-07-06 16:19:41 +02:00 • committed by Mark Brown

parent 1a695a905c

commit 08188ba882

1 changed files with 39 additions and 0 deletions

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39

include/linux/regmap.h

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