ARM: shmobile: koelsch-reference: Enable CMT0 in device tree

No more device needs to be added from platform code when booting the
reference platform, remove the now empty r8a7791_add_dt_devices()
function completely.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791-koelsch.dts

@@ -307,6 +307,10 @@
 	};
 };
 
+&cmt0 {
+	status = "ok";
+};
+
 &sata0 {
 	status = "okay";
 };

arch/arm/mach-shmobile/board-koelsch-reference.c

@@ -88,7 +88,6 @@ static void __init koelsch_add_du_device(void)
  * devices until they get moved to DT.
  */
 static const struct clk_name clk_names[] __initconst = {
-	{ "cmt0", "fck", "sh-cmt-48-gen2.0" },
 	{ "du0", "du.0", "rcar-du-r8a7791" },
 	{ "du1", "du.1", "rcar-du-r8a7791" },
 	{ "lvds0", "lvds.0", "rcar-du-r8a7791" },
@@ -97,7 +96,6 @@ static const struct clk_name clk_names[] __initconst = {
 static void __init koelsch_add_standard_devices(void)
 {
 	shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false);
-	r8a7791_add_dt_devices();
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 
 	koelsch_add_du_device();

arch/arm/mach-shmobile/r8a7791.h

@@ -2,7 +2,6 @@
 #define __ASM_R8A7791_H__
 
 void r8a7791_add_standard_devices(void);
-void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 void r8a7791_pinmux_init(void);
 void r8a7791_pm_init(void);

arch/arm/mach-shmobile/setup-r8a7791.c

@@ -182,11 +182,6 @@ static const struct resource thermal_resources[] __initconst = {
 					thermal_resources,		\
 					ARRAY_SIZE(thermal_resources))
 
-void __init r8a7791_add_dt_devices(void)
-{
-	r8a7791_register_cmt(0);
-}
-
 void __init r8a7791_add_standard_devices(void)
 {
 	r8a7791_register_scif(0);
@@ -204,7 +199,7 @@ void __init r8a7791_add_standard_devices(void)
 	r8a7791_register_scif(12);
 	r8a7791_register_scif(13);
 	r8a7791_register_scif(14);
-	r8a7791_add_dt_devices();
+	r8a7791_register_cmt(0);
 	r8a7791_register_irqc(0);
 	r8a7791_register_thermal();
 }