regmap: Use async I/O for patch application

Try to speed up patch application a little using async I/O.

Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0503d868ff8c..71282e12fd29 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2029,6 +2029,7 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
         bypass = map->cache_bypass;
 
         map->cache_bypass = true;
+        map->async = true;
 
         /* Write out first; it's useful to apply even if we fail later. */
         for (i = 0; i < num_regs; i++) {
@@ -2052,10 +2053,13 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
         }
 
 out:
+        map->async = false;
         map->cache_bypass = bypass;
 
         map->unlock(map->lock_arg);
 
+        regmap_async_complete(map);
+
         return ret;
 }
 EXPORT_SYMBOL_GPL(regmap_register_patch);