linux-kernel - [PATCH v9 07/10] arm64: dts: rockchip: add pd

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Message-Id: <20250721-6-10-rocket-v9-7-77ebd484941e@tomeuvizoso.net>
Date: Mon, 21 Jul 2025 11:17:34 +0200
From: Tomeu Vizoso <tomeu@...euvizoso.net>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, 
 Oded Gabbay <ogabbay@...nel.org>, Jonathan Corbet <corbet@....net>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Sumit Semwal <sumit.semwal@...aro.org>, 
 Christian König <christian.koenig@....com>, 
 Sebastian Reichel <sebastian.reichel@...labora.com>, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>, 
 Kever Yang <kever.yang@...k-chips.com>, Robin Murphy <robin.murphy@....com>, 
 Daniel Stone <daniel@...ishbar.org>, Da Xue <da@...re.computer>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Jeff Hugo <jeff.hugo@....qualcomm.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org, 
 linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org, 
 Tomeu Vizoso <tomeu@...euvizoso.net>
Subject: [PATCH v9 07/10] arm64: dts: rockchip: add pd_npu label for RK3588
 power domains

From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>

The NPU of the RK3588 has an external supply. This supply also affects
the power domain of the NPU, not just the NPU device nodes themselves.
Since correctly modelled boards will want the power domain to be aware
of the regulator so that it doesn't always have to be on, add a label to
the NPU power domain node so board files can reference it.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Tested-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
---
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
index 70f03e68ba550d6b9142131dcca86e8ded36e2f1..1eddc69fd9c9ed95cdc810ba48d9683e3f82489a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -841,7 +841,7 @@ power: power-controller {
 			status = "okay";
 
 			/* These power domains are grouped by VD_NPU */
-			power-domain@...588_PD_NPU {
+			pd_npu: power-domain@...588_PD_NPU {
 				reg = <RK3588_PD_NPU>;
 				#power-domain-cells = <0>;
 				#address-cells = <1>;

-- 
2.50.0