rm64: dts: apple: t8103: Add ATC display crossbar devices

These are mux devices which control which DCP source is routed to DP
complex in ATC. The display signals are either routed to the DP phy for
DP-altmode or one of two DP in Thunderbolt/USB4 tunnels.

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

arch/arm64/boot/dts/apple/t8103.dtsi

@@ -1571,6 +1571,13 @@
 			power-domains = <&ps_atc0_usb>;
 		};
 
+		atcphy0_xbar: mux@38304c000 {
+			compatible = "apple,t8103-display-crossbar";
+			reg = <0x3 0x8304c000 0x0 0x4000>;
+			#mux-control-cells = <1>;
+			power-domains = <&ps_atc0_usb>;
+		};
+
 		dwc3_1: usb@502280000 {
 			compatible = "apple,t8103-dwc3";
 			reg = <0x5 0x02280000 0x0 0xcd00>, <0x5 0x0228cd00 0x0 0x3200>;
@@ -1623,6 +1630,13 @@
 			power-domains = <&ps_atc1_usb>;
 		};
 
+		atcphy1_xbar: mux@50304c000 {
+			compatible = "apple,t8103-display-crossbar";
+			reg = <0x5 0x0304c000 0x0 0x4000>;
+			#mux-control-cells = <1>;
+			power-domains = <&ps_atc1_usb>;
+		};
+
 		pcie0_dart_0: iommu@681008000 {
 			compatible = "apple,t8103-dart";
 			reg = <0x6 0x81008000 0x0 0x4000>;