Commit 5c1ebe7f authored Aug 27, 2014 by Mark Brown Committed by Mark Brown Aug 31, 2014

regmap: Don't attempt block writes when syncing cache on single_rw devices



If the device can't support block writes then don't attempt to use raw
syncing which will automatically generate block writes for adjacent
registers, use the existing _single() block syncing implementation.

Reported-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

parent 7d1311b9

drivers/base/regmap/regcache.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -698,7 +698,7 @@ int regcache_sync_block(struct regmap map, void block,
	unsigned int block_base, unsigned int start,		unsigned int block_base, unsigned int start,
	unsigned int end)		unsigned int end)
	{		{
	if (regmap_can_raw_write(map))		if (regmap_can_raw_write(map) && !map->use_single_rw)
	return regcache_sync_block_raw(map, block, cache_present,		return regcache_sync_block_raw(map, block, cache_present,
	block_base, start, end);		block_base, start, end);
	else		else