arm64: dts: ti: k3-am62p: Enable Mailbox nodes at the board level

Mailbox nodes defined in the top-level J722s/AM62p SoC dtsi files are
incomplete and may not be functional unless they are extended with a
chosen interrupt and connection to a remote processor.

Disable the Mailbox nodes in the dtsi files and only enable the ones
that are actually used on a given board.

Signed-off-by: Andrew Davis <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Nishanth Menon <[email protected]>

Author: glneo

arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi

@@ -768,6 +768,7 @@
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster1: mailbox@29010000 {
@@ -777,6 +778,7 @@
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster2: mailbox@29020000 {
@@ -786,6 +788,7 @@
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster3: mailbox@29030000 {
@@ -795,6 +798,7 @@
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	ecap0: pwm@23100000 {

arch/arm64/boot/dts/ti/k3-am62p5-sk.dts

@@ -621,13 +621,17 @@
 };
 
 &mailbox0_cluster0 {
+	status = "okay";
+
 	mbox_r5_0: mbox-r5-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;
 	};
 };
 
 &mailbox0_cluster1 {
+	status = "okay";
+
 	mbox_mcu_r5_0: mbox-mcu-r5-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;