From: Jonas Karlman <jonas@kwiboo.se>
Date: Wed, 30 Jul 2025 23:52:44 +0000 (+0000)
Subject: arm: dts: rockchip: Set init-microvolt for pwm-regulators on Radxa E20C
X-Git-Tag: v2025.10-rc4~8^2~23
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95ae8b040b891596c5a7916a0955d7820fc9e380;p=pandora-u-boot.git

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>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
---

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>;
+};