diff --git a/arch/arm64/boot/dts/apple/t8142-j704-peripherals.dtsi b/arch/arm64/boot/dts/apple/t8142-j704-peripherals.dtsi
index d962ab3291e0..4e19db7c75d8 100644
--- a/arch/arm64/boot/dts/apple/t8142-j704-peripherals.dtsi
+++ b/arch/arm64/boot/dts/apple/t8142-j704-peripherals.dtsi
@@ -60,6 +60,12 @@
 		label = "pmp";
 		/* The PMP's SRAM, which the driver reads first. */
 		power-domains = <&ps_pms_sram>;
+		/*
+		 * As on T8140/T8132 and the J813: the PMP firmware keeps running
+		 * DCS and fabric DVFS. If genpd gates this domain at s2idle, the
+		 * PMP crashes on its own MMIO.
+		 */
+		apple,always-on;
 	};
 
 	ps_pms_sram: power-controller@5a0 {
@@ -247,6 +253,13 @@
 
 			/* Layout is filled by the loader using this machine's own data. */
 			keyboard: keyboard { };
+
+			/*
+			 * The trackpad's haptic engine. The MTP firmware offers it
+			 * as interface 4 "actuator"; without this node the click
+			 * stays firmware-driven and there is no Force Touch stage.
+			 */
+			actuator { };
 		};
 	};
 };
diff --git a/arch/arm64/boot/dts/apple/t8142-j704.dts b/arch/arm64/boot/dts/apple/t8142-j704.dts
index aebc8830d136..20d06216a96b 100644
--- a/arch/arm64/boot/dts/apple/t8142-j704.dts
+++ b/arch/arm64/boot/dts/apple/t8142-j704.dts
@@ -314,6 +314,11 @@
 	status = "okay";
 };
 
+/* aura (mcc_init_m5) turns the system level cache on; the driver confirms it and flushes on shutdown. */
+&mcc {
+	status = "okay";
+};
+
 #include "t8142-j704-display.dtsi"
 #include "t8142-j704-peripherals.dtsi"
 #include "t8142-j704-usb.dtsi"