[PATCH 1/1] arm64: dts: rockchip: fix adc button voltage on Radxa E52C
From: Chukun Pan
Date: Sat Aug 08 2026 - 06:00:55 EST
The ADC button voltage should be around 1.8 V, not 18 mV.
Signed-off-by: Chukun Pan <amadeus@xxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
index 854c118418eb..1eb919a58be2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
@@ -29,7 +29,7 @@ keys-0 {
compatible = "adc-keys";
io-channels = <&saradc 0>;
io-channel-names = "buttons";
- keyup-threshold-microvolt = <18000>;
+ keyup-threshold-microvolt = <1800000>;
poll-interval = <100>;
button-0 {
--
2.34.1