diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index fa6ac3475290..2d5d75fffde9 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -23,7 +23,7 @@
 		compatible = "gpio-keys";
 		autorepeat;
 		pinctrl-names = "default";
-		pinctrl-0 = <&sw10_button_pins_default &sw11_button_pins_default>;
+		pinctrl-0 = <&sw10_button_pins_default>, <&sw11_button_pins_default>;
 
 		sw10: switch-10 {
 			label = "GPIO Key USER1";
@@ -702,7 +702,7 @@
 
 &mcu_cpsw {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mcu_cpsw_pins_default &mcu_mdio_pins_default>;
+	pinctrl-0 = <&mcu_cpsw_pins_default>, <&mcu_mdio_pins_default>;
 };
 
 &davinci_mdio {
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
index 67e52ee3a8bd..7a4c00ca9371 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -373,55 +373,55 @@
 };
 
 &mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	mboxes = <&mailbox0_cluster0>, <&mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 };
 
 &mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
+	mboxes = <&mailbox0_cluster0>, <&mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
 &main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
+	mboxes = <&mailbox0_cluster1>, <&mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
 };
 
 &main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
+	mboxes = <&mailbox0_cluster1>, <&mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
 };
 
 &main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
+	mboxes = <&mailbox0_cluster2>, <&mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
 };
 
 &main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
+	mboxes = <&mailbox0_cluster2>, <&mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
 };
 
 &c66_0 {
-	mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
+	mboxes = <&mailbox0_cluster3>, <&mbox_c66_0>;
 	memory-region = <&c66_0_dma_memory_region>,
 			<&c66_0_memory_region>;
 };
 
 &c66_1 {
-	mboxes = <&mailbox0_cluster3 &mbox_c66_1>;
+	mboxes = <&mailbox0_cluster3>, <&mbox_c66_1>;
 	memory-region = <&c66_1_dma_memory_region>,
 			<&c66_1_memory_region>;
 };
 
 &c71_0 {
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
+	mboxes = <&mailbox0_cluster4>, <&mbox_c71_0>;
 	memory-region = <&c71_0_dma_memory_region>,
 			<&c71_0_memory_region>;
 };