regmap: regmap max_raw_read/write getter functions

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Add functions to access the maximum size we can read/write using
regmap_raw_read/write().

This helps drivers that need to know how much they can write with the
raw functions without problems. There are some devices (e.g. bmc150)
that have fifos as registers which need to be read in specific chunks
otherwise samples are dropped.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Markus Pargmann 2015-08-30 09:33:54 +02:00 • committed by Mark Brown

parent adaac45975

commit f50c9eb4e9

2 changed files with 24 additions and 0 deletions

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include/linux/regmap.h

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