arm64: dts: meson-s4: add pinctrl node

Add pinctrl node for mesonn-s4
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220310030410.718-1-qianggui.song@amlogic.com

arch/arm64/boot/dts/amlogic/meson-s4.dtsi

@@ -5,6 +5,7 @@
 
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	cpus {
@@ -85,6 +86,22 @@ apb4: apb4@fe000000 {
 			#size-cells = <2>;
 			ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x480000>;
 
+			periphs_pinctrl: pinctrl@4000 {
+				compatible = "amlogic,meson-s4-periphs-pinctrl";
+				#address-cells = <2>;
+				#size-cells = <2>;
+				ranges;
+
+				gpio: bank@4000 {
+					reg = <0x0 0x4000 0x0 0x004c>,
+					      <0x0 0x40c0 0x0 0x0220>;
+					reg-names = "mux", "gpio";
+					gpio-controller;
+					#gpio-cells = <2>;
+					gpio-ranges = <&periphs_pinctrl 0 0 82>;
+				};
+			};
+
 			uart_B: serial@7a000 {
 				compatible = "amlogic,meson-s4-uart",
 					     "amlogic,meson-ao-uart";