2 files changed, 24 insertions, 0 deletions

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index c91cb4367b9b..f0abca79ff34 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -383,6 +383,27 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
 }
 EXPORT_SYMBOL(twl_i2c_read);
 
+/**
+ * twl_regcache_bypass - Configure the regcache bypass for the regmap associated
+ *                       with the module
+ * @mod_no: module number
+ * @enable: Regcache bypass state
+ *
+ * Returns 0 else failure.
+ */
+int twl_set_regcache_bypass(u8 mod_no, bool enable)
+{
+        struct regmap *regmap = twl_get_regmap(mod_no);
+
+        if (!regmap)
+                return -EPERM;
+
+        regcache_cache_bypass(regmap, enable);
+
+        return 0;
+}
+EXPORT_SYMBOL(twl_set_regcache_bypass);
+
 /*----------------------------------------------------------------------*/
 
 /**
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 673a3ce67f31..a09da0910339 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -175,6 +175,9 @@ static inline int twl_class_is_ ##class(void)	\
 TWL_CLASS_IS(4030, TWL4030_CLASS_ID)
 TWL_CLASS_IS(6030, TWL6030_CLASS_ID)
 
+/* Set the regcache bypass for the regmap associated with the nodule */
+int twl_set_regcache_bypass(u8 mod_no, bool enable);
+
 /*
  * Read and write several 8-bit registers at once.
  */