linux-kernel - [PATCH v4 6/7] riscv: dts: spacemit: add a PCIe regulator

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Message-ID: <20251030220259.1063792-7-elder@riscstar.com>
Date: Thu, 30 Oct 2025 17:02:57 -0500
From: Alex Elder <elder@...cstar.com>
To: dlan@...too.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: pjw@...nel.org,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	alex@...ti.fr,
	devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 6/7] riscv: dts: spacemit: add a PCIe regulator

Define a 3.3v fixed voltage regulator to be used by PCIe on the
Banana Pi BPI-F3.  On this platform, this regulator is always on.

Signed-off-by: Alex Elder <elder@...cstar.com>
---
 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
index 33ca816bfd4b3..a269c2cca3ac9 100644
--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
@@ -33,6 +33,14 @@ led1 {
 		};
 	};
 
+	pcie_vcc_3v3: pcie-vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIE_VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	reg_dc_in: dc-in-12v {
 		compatible = "regulator-fixed";
 		regulator-name = "dc_in_12v";
-- 
2.48.1