diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index 747a96c58df1..647e5f9f6aa8 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -140,6 +140,10 @@ static struct notifier_block regulator_quirk_nb = {
 
 static int __init rcar_gen2_regulator_quirk(void)
 {
+	static const char *const boards[] __initconst = {
+		"renesas,koelsch", "renesas,lager", "renesas,porter",
+		"renesas,stout", "renesas,gose", NULL
+	};
 	struct regulator_quirk *quirk, *pos, *tmp;
 	struct of_phandle_args *args;
 	const struct of_device_id *id;
@@ -147,11 +151,7 @@ static int __init rcar_gen2_regulator_quirk(void)
 	u32 mon, addr;
 	int ret;
 
-	if (!of_machine_is_compatible("renesas,koelsch") &&
-	    !of_machine_is_compatible("renesas,lager") &&
-	    !of_machine_is_compatible("renesas,porter") &&
-	    !of_machine_is_compatible("renesas,stout") &&
-	    !of_machine_is_compatible("renesas,gose"))
+	if (!of_machine_compatible_match(boards))
 		return -ENODEV;
 
 	for_each_matching_node_and_match(np, rcar_gen2_quirk_match, &id) {
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 3cd34a42e39b..514558905919 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -56,6 +56,10 @@ static unsigned int __init get_extal_freq(void)
 
 static void __init rcar_gen2_timer_init(void)
 {
+	static const char *const fixed_freq_socs[] __initconst = {
+		"renesas,r8a7745", "renesas,r8a77470", "renesas,r8a7792",
+		"renesas,r8a7794", NULL
+	};
 	bool need_update = true;
 	void __iomem *base;
 	u32 freq;
@@ -76,10 +80,7 @@ static void __init rcar_gen2_timer_init(void)
 
 	secure_cntvoff_init();
 
-	if (of_machine_is_compatible("renesas,r8a7745") ||
-	    of_machine_is_compatible("renesas,r8a77470") ||
-	    of_machine_is_compatible("renesas,r8a7792") ||
-	    of_machine_is_compatible("renesas,r8a7794")) {
+	if (of_machine_compatible_match(fixed_freq_socs)) {
 		freq = 260000000 / 8;	/* ZS / 8 */
 	} else {
 		/* At Linux boot time the r8a7790 arch timer comes up