ARM: shmobile: lager: Enable SCIF0 and SCIF1 serial ports in DT

SCIF0 and SCIF1 are used as debug serial ports. Enable them and
configure pinmuxing appropriately. We can now remove the clkdev
registration hack for SCIF devices from the Lager reference board file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: updated changelog to remove references to
                             device renaming]
[horms+renesas@verge.net.au: resolved conflicts]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7790-lager.dts

@@ -17,6 +17,11 @@
 	model = "Lager";
 	compatible = "renesas,lager", "renesas,r8a7790";
 
+	aliases {
+		serial6 = &scif0;
+		serial7 = &scif1;
+	};
+
 	chosen {
 		bootargs = "console=ttySC6,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp";
 	};
@@ -112,7 +117,7 @@
 };
 
 &pfc {
-	pinctrl-0 = <&du_pins &scif0_pins &scif1_pins>;
+	pinctrl-0 = <&du_pins>;
 	pinctrl-names = "default";
 
 	du_pins: du {
@@ -221,6 +226,20 @@
 	};
 };
 
+&scif0 {
+	pinctrl-0 = <&scif0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&scif1 {
+	pinctrl-0 = <&scif1_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
 &sdhi0 {
 	pinctrl-0 = <&sdhi0_pins>;
 	pinctrl-names = "default";

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

@@ -91,16 +91,6 @@ static void __init lager_add_du_device(void)
  */
 static const struct clk_name clk_names[] __initconst = {
 	{ "cmt0", "fck", "sh-cmt-48-gen2.0" },
-	{ "scifa0", NULL, "sh-sci.0" },
-	{ "scifa1", NULL, "sh-sci.1" },
-	{ "scifb0", NULL, "sh-sci.2" },
-	{ "scifb1", NULL, "sh-sci.3" },
-	{ "scifb2", NULL, "sh-sci.4" },
-	{ "scifa2", NULL, "sh-sci.5" },
-	{ "scif0", NULL, "sh-sci.6" },
-	{ "scif1", NULL, "sh-sci.7" },
-	{ "hscif0", NULL, "sh-sci.8" },
-	{ "hscif1", NULL, "sh-sci.9" },
 	{ "du0", "du.0", "rcar-du-r8a7790" },
 	{ "du1", "du.1", "rcar-du-r8a7790" },
 	{ "du2", "du.2", "rcar-du-r8a7790" },

arch/arm/mach-shmobile/setup-r8a7790.c

@@ -286,6 +286,11 @@ static struct resource cmt0_resources[] = {
 					  sizeof(struct sh_timer_config))
 
 void __init r8a7790_add_dt_devices(void)
+{
+	r8a7790_register_cmt(0);
+}
+
+void __init r8a7790_add_standard_devices(void)
 {
 	r8a7790_register_scif(0);
 	r8a7790_register_scif(1);
@@ -297,11 +302,6 @@ void __init r8a7790_add_dt_devices(void)
 	r8a7790_register_scif(7);
 	r8a7790_register_scif(8);
 	r8a7790_register_scif(9);
-	r8a7790_register_cmt(0);
-}
-
-void __init r8a7790_add_standard_devices(void)
-{
 	r8a7790_add_dt_devices();
 	r8a7790_register_irqc(0);
 	r8a7790_register_thermal();