regmap: Devices using format_write don't support bulk operations

Set the use_single_rw flag for devices that use format_write() since
format_write() doesn't support any form of block operation.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0a05a706e141..fcd69ff695d5 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -341,6 +341,9 @@ struct regmap *regmap_init(struct device *dev,
                 break;
         }
 
+        if (map->format.format_write)
+                map->use_single_rw = true;
+
         if (!map->format.format_write &&
             !(map->format.format_reg && map->format.format_val))
                 goto err_map;