diff --git a/include/linux/clk/renesas.h b/include/linux/clk/renesas.h
index 095b1681daf46..ab57a298a3740 100644
--- a/include/linux/clk/renesas.h
+++ b/include/linux/clk/renesas.h
@@ -25,7 +25,12 @@ void r8a7779_clocks_init(u32 mode);
 void rcar_gen2_clocks_init(u32 mode);
 
 void cpg_mstp_add_clk_domain(struct device_node *np);
+#ifdef CONFIG_CLK_RENESAS_CPG_MSTP
 int cpg_mstp_attach_dev(struct generic_pm_domain *unused, struct device *dev);
 void cpg_mstp_detach_dev(struct generic_pm_domain *unused, struct device *dev);
+#else
+#define cpg_mstp_attach_dev	NULL
+#define cpg_mstp_detach_dev	NULL
+#endif
 
 #endif