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LibreELEC.tv/projects/Rockchip/patches/u-boot/rockchip-0017-arm-dts-rockchip-Set-init-microvolt-for-pwm-regulato.patch
Christian Hewitt f0acbd3fce u-boot: use 2025.10 plus Kwiboo patches for Rockchip
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
2025-09-12 09:30:58 +00:00

36 lines
1003 B
Diff

From 021508b653ce85a4528a63834457d5754724e4a1 Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Wed, 30 Jul 2025 23:52:44 +0000
Subject: [PATCH 17/84] arm: dts: rockchip: Set init-microvolt for
pwm-regulators on Radxa E20C
Radxa E20C has two main pwm-regulators, vdd_arm and vdd_logic.
Add init-microvolt props to ensure the regulators are initialized at
the recommended power-on sequence voltage instead of at max voltage.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi b/arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi
index 05a58c136bc..16c47e6b9a9 100644
--- a/arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi
+++ b/arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi
@@ -5,3 +5,11 @@
&sdhci {
mmc-hs200-1_8v;
};
+
+&vdd_arm {
+ regulator-init-microvolt = <953000>;
+};
+
+&vdd_logic {
+ regulator-init-microvolt = <900000>;
+};
--
2.34.1