[PATCH 3.13 090/103] regmap: Don't attempt block writes when syncing cache on single_rw devices

[Kamal Mostafa]

3.13.11.8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mark Brown <broonie at linaro.org>

commit 5c1ebe7f73f9166893c3459915db8a09d6d1d715 upstream.

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 at linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula at linux.intel.com>
Signed-off-by: Mark Brown <broonie at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/base/regmap/regcache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index d4dd771..154e7a8 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -701,7 +701,7 @@ int regcache_sync_block(struct regmap *map, void *block,
 			unsigned int block_base, unsigned int start,
 			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,
 					       block_base, start, end);
 	else
-- 
1.9.1