diff --git a/sys/dev/fdt/fdt_clock.c b/sys/dev/fdt/fdt_clock.c
index 2079cbcdc2f6..c2f056c717a5 100644
--- a/sys/dev/fdt/fdt_clock.c
+++ b/sys/dev/fdt/fdt_clock.c
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_clock.c,v 1.9 2019/10/28 21:15:34 jmcneill Exp $ */
+/* $NetBSD: fdt_clock.c,v 1.10 2019/11/09 23:28:26 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdt_clock.c,v 1.9 2019/10/28 21:15:34 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdt_clock.c,v 1.10 2019/11/09 23:28:26 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -161,6 +161,30 @@ fdtbus_clock_get(int phandle, const char *clkname)
 	return fdtbus_clock_get_prop(phandle, clkname, "clock-names");
 }
 
+int
+fdtbus_clock_enable(int phandle, const char *clkname, bool required)
+{
+	struct clk *clk;
+
+	clk = fdtbus_clock_get(phandle, clkname);
+	if (clk == NULL)
+		return required ? ENOENT : 0;
+
+	return clk_enable(clk);
+}
+
+int
+fdtbus_clock_enable_index(int phandle, u_int index, bool required)
+{
+	struct clk *clk;
+
+	clk = fdtbus_clock_get_index(phandle, index);
+	if (clk == NULL)
+		return required ? ENOENT : 0;
+
+	return clk_enable(clk);
+}
+
 /*
  * Search the DT for a clock by "clock-output-names" property.
  *
diff --git a/sys/dev/fdt/fdtvar.h b/sys/dev/fdt/fdtvar.h
index 44c52825024e..d421ce318889 100644
--- a/sys/dev/fdt/fdtvar.h
+++ b/sys/dev/fdt/fdtvar.h
@@ -1,4 +1,4 @@
-/* $NetBSD: fdtvar.h,v 1.56 2019/10/28 21:15:34 jmcneill Exp $ */
+/* $NetBSD: fdtvar.h,v 1.57 2019/11/09 23:28:26 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
@@ -367,6 +367,8 @@ struct clk *	fdtbus_clock_get_index(int, u_int);
 struct clk *	fdtbus_clock_byname(const char *);
 void		fdtbus_clock_assign(int);
 u_int		fdtbus_clock_count(int, const char *);
+int		fdtbus_clock_enable(int, const char *, bool);
+int		fdtbus_clock_enable_index(int, u_int, bool);
 
 struct fdtbus_reset *fdtbus_reset_get(int, const char *);
 struct fdtbus_reset *fdtbus_reset_get_index(int, u_int);