diff --git a/drivers/mfd/tps65086.c b/drivers/mfd/tps65086.c
index 152179ee11ca..fdce81b33f60 100644
--- a/drivers/mfd/tps65086.c
+++ b/drivers/mfd/tps65086.c
@@ -36,6 +36,7 @@ static const struct regmap_config tps65086_regmap_config = {
 	.val_bits = 8,
 	.cache_type = REGCACHE_MAPLE,
 	.volatile_table = &tps65086_volatile_table,
+	.max_register = TPS65086_OC_STATUS,
 };
 
 static const struct regmap_irq tps65086_irqs[] = {