linux-kernel - [PATCH v3 2/3] arm64: dts: rockchip: remove vcc_3v3

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Message-Id: <20250901100027.164594-3-amadeus@jmu.edu.cn>
Date: Mon,  1 Sep 2025 18:00:26 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Heiko Stuebner <heiko@...ech.de>
Cc: Chukun Pan <amadeus@....edu.cn>,
	FUKAUMI Naoki <naoki@...xa.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH v3 2/3] arm64: dts: rockchip: remove vcc_3v3_pmu regulator for Radxa E52C

According to Radxa E52C Schematic V1.2 [1] page 5, vcc_3v3_pmu
is directly connected to vcc_3v3_s3 via a 0 ohm resistor.
The vcc_3v3_pmu is not a new regulator, so remove it.

[1] https://dl.radxa.com/e/e52c/hw/radxa_e52c_v1.2_schematic.pdf

Signed-off-by: Chukun Pan <amadeus@....edu.cn>
---
 arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
index 1883bd183396..302a30e423ad 100644
--- a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
@@ -98,16 +98,6 @@ vcc_1v1_nldo_s3: regulator-1v1 {
 		vin-supply = <&vcc_sysin>;
 	};
 
-	vcc_3v3_pmu: regulator-3v3-0 {
-		compatible = "regulator-fixed";
-		regulator-name = "vcc_3v3_pmu";
-		regulator-always-on;
-		regulator-boot-on;
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		vin-supply = <&vcc_3v3_s3>;
-	};
-
 	vcc_3v3_s0: regulator-3v3-1 {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_3v3_s0";
@@ -542,7 +532,7 @@ regulator-state-mem {
 				};
 			};
 
-			vcc_3v3_s3: dcdc-reg8 {
+			vcc_3v3_s3: vcc_3v3_pmu: dcdc-reg8 {
 				regulator-name = "vcc_3v3_s3";
 				regulator-always-on;
 				regulator-boot-on;
-- 
2.25.1