linux-kernel - [PATCH v6 09/10] arm64: dts: rockchip: add pd

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Message-Id: <20250604-6-10-rocket-v6-9-237ac75ddb5e@tomeuvizoso.net>
Date: Wed, 04 Jun 2025 09:57:22 +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>, 
 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 v6 09/10] 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>
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 ea831bb6e2ccc64c811f885a4964da7617c255d7..a44dfb376fdf4c29e1bd307d9a7d1621e11d8c59 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -837,7 +837,7 @@ 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>;

-- 
2.49.0