regmap: Track if the register cache is dirty and suppress unneeded syncs
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Wed, 26 Oct 2011 08:34:22 +0000 (10:34 +0200)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 8 Nov 2011 11:38:15 +0000 (11:38 +0000)
commit8ae0d7e8a918e9603748abe9b31984fc5d96abb3
tree329564b9bdc3cac89a3ac1586c9e5812ab21bf1c
parent1ea6b8f48918282bdca0b32a34095504ee65bab5
regmap: Track if the register cache is dirty and suppress unneeded syncs

Allow drivers to optimise out the register cache sync if they didn't need
to do one. If the hardware is desynced from the register cache (by power
loss for example) then the driver should call regcache_mark_dirty() to
let the core know about this.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
drivers/base/regmap/internal.h
drivers/base/regmap/regcache.c
drivers/base/regmap/regmap.c
include/linux/regmap.h