Subject: [PATCH] arm64: dts: rockchip: Enable the NPU on rk3588-rock-5-itx

From: Sten-Silver Ots <[email-masked]>
Date: Tue, 14 Apr 2026 00:52:49 +0300

This commit enables the NPU on Radxa Rock 5 ITX board.
The regulator vdd_npu_s0 was already in place and since the NPUs
power domain supply is now described remove the always-on property
from the regulator.

Signed-off-by: Sten-Silver Ots <[email-masked]>
---
 .../boot/dts/rockchip/rk3588-rock-5-itx.dts   | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
index de154adb1497..d3ab6c68a60b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
@@ -421,7 +421,6 @@ vdd_npu_s0: regulator@42 {
 		reg = <0x42>;
 		fcs,suspend-voltage-selector = <1>;
 		regulator-name = "vdd_npu_s0";
-		regulator-always-on;
 		regulator-boot-on;
 		regulator-min-microvolt = <550000>;
 		regulator-max-microvolt = <950000>;
@@ -683,6 +682,10 @@ &pd_gpu {
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	hym8563 {
 		rtc_int: rtc-int {
@@ -802,6 +805,36 @@ dp1_hpd: dp1-hpd {
 	};
 };
 
+&rknn_core_0 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_1 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_2 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_mmu_0 {
+	status = "okay";
+};
+
+&rknn_mmu_1 {
+	status = "okay";
+};
+
+&rknn_mmu_2 {
+	status = "okay";
+};
+
 &pwm14 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pwm14m1_pins>;
-- 
2.53.0