linux-kernel - [PATCH 6/7] riscv: dts: spacemit: Add a PCIe regulator for OrangePi RV2

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Message-ID: <fbeb8b9f1c3453cb6907247aecbf62675d2e9de9.1769895215.git.gaohan@iscas.ac.cn>
Date: Sun,  1 Feb 2026 05:38:13 +0800
From: Han Gao <gaohan@...as.ac.cn>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Yixun Lan <dlan@...too.org>,
	Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>
Cc: devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Han Gao <rabenda.cn@...il.com>,
	Han Gao <gaohan@...as.ac.cn>
Subject: [PATCH 6/7] riscv: dts: spacemit: Add a PCIe regulator for OrangePi RV2

Define a 3.3v fixed voltage regulator to be used by PCIe on the
OrangePi RV2. On this platform, this regulator is always on.

Signed-off-by: Han Gao <gaohan@...as.ac.cn>
---
 arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
index c0a0c96f2ac4..a370dd35e9bc 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -23,6 +23,16 @@ chosen {
 		stdout-path = "serial0";
 	};
 
+	pcie_vcc_3v3: pcie-vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIE_VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		gpio = <&gpio K1_GPIO(116) GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	reg_dc_in: dc-in-12v {
 		compatible = "regulator-fixed";
 		regulator-name = "dc_in_12v";
-- 
2.47.3