1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index e3ee9cabccb4..2f7c25c68c9e 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -844,6 +844,21 @@ out:
 }
 EXPORT_SYMBOL_GPL(regmap_register_patch);
 
+/*
+ * regmap_get_val_bytes(): Report the size of a register value
+ *
+ * Report the size of a register value, mainly intended to for use by
+ * generic infrastructure built on top of regmap.
+ */
+int regmap_get_val_bytes(struct regmap *map)
+{
+        if (map->format.format_write)
+                return -EINVAL;
+
+        return map->format.val_bytes;
+}
+EXPORT_SYMBOL_GPL(regmap_get_val_bytes);
+
 static int __init regmap_initcall(void)
 {
         regmap_debugfs_initcall();