diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 7418a763ce5202b37f96b0cf26863400aa953982..ee71e647fd4338fe307b84b2c56701f6b64b5478 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -349,6 +349,7 @@ static const struct rtc_class_ops at91_rtc_ops = {
 };
 
 static const struct regmap_config gpbr_regmap_config = {
+	.name = "gpbr",
 	.reg_bits = 32,
 	.val_bits = 32,
 	.reg_stride = 4,