[PATCH 3/3] arm64: dts: allwinner: a523: add gpadc node

[Chen-Yu Tsai]

On Sun, May 10, 2026 at 9:02 PM Michal Piekos
<michal.piekos at mmpsystems.pl> wrote:
>
> 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 at mmpsystems.pl>
> ---
>  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 at 2008000 {
>                         status = "disabled";
>                 };
>
> +               gpadc: adc at 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>;

status should always be the last property.

> +               };
> +
>                 wdt: watchdog at 2050000 {
>                         compatible = "allwinner,sun55i-a523-wdt";
>                         reg = <0x2050000 0x20>;
>
> --
> 2.43.0
>
>