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-rw-r--r--drivers/mfd/wm831x-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index e758c89ac5b..0a2b8d41a70 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -1602,6 +1602,8 @@ struct regmap_config wm831x_regmap_config = {
.reg_bits = 16,
.val_bits = 16,
+ .cache_type = REGCACHE_RBTREE,
+
.max_register = WM831X_DBE_CHECK_DATA,
.readable_reg = wm831x_reg_readable,
.writeable_reg = wm831x_reg_writeable,