diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c
index 74e6a67a28d3c336c4927fa868eb4b87b4e29c45..27117a8a49ad8556b22d67cb03498994594ea625 100644
--- a/arch/arm/mach-shmobile/pm-r8a7740.c
+++ b/arch/arm/mach-shmobile/pm-r8a7740.c
@@ -75,6 +75,9 @@ static struct rmobile_pm_domain r8a7740_pm_domains[] = {
 	}, {
 		.genpd.name	= "A3SG",
 		.bit_shift	= 13,
+	}, {
+		.genpd.name	= "A4SU",
+		.bit_shift	= 20,
 	},
 };