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

[Jernej Škrabec]

Dne nedelja, 10. maj 2026 ob 14:57:24 Srednjeevropski poletni čas je Michal Piekos napisal(a):
> Describe high speed timer block on Allwinner D1S-T113.

Above line doesn't make much sense.

Best regards,
Jernej

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