[PATCH 3/3] arm64: dts: allwinner: a523: add gpadc node
From: Michal Piekos
Date: Sun May 10 2026 - 09:03:03 EST
Describe high speed timer block on Allwinner D1S-T113.
Tested on Radxa Cubie A5E:
- 2 connected channels are showing voltages in agreement with
schematics.
BOOT-SEL-ADC ~500mV
BOM-ADC ~1800mV
- 3rd channel exposed on 40pin header is showing correct voltages when
connected to known voltage source.
Signed-off-by: Michal Piekos <michal.piekos@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 5afa8d92acbf..f6c5cae5b23a 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -340,6 +340,18 @@ ledc: led-controller@2008000 {
status = "disabled";
};
+ gpadc: adc@2009000 {
+ compatible = "allwinner,sun55i-a523-gpadc",
+ "allwinner,sun20i-d1-gpadc";
+ reg = <0x2009000 0x400>;
+ clocks = <&ccu CLK_BUS_GPADC0>, <&ccu CLK_GPADC0>;
+ clock-names = "bus", "mod";
+ resets = <&ccu RST_BUS_GPADC0>;
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ #io-channel-cells = <1>;
+ };
+
wdt: watchdog@2050000 {
compatible = "allwinner,sun55i-a523-wdt";
reg = <0x2050000 0x20>;
--
2.43.0