[PATCH v4 5/7] arm64: dts: allwinner: a100: Add LRADC node

[Jernej Škrabec]

Dne petek, 5. junij 2026 ob 09:09:19 Srednjeevropski poletni čas je Alexander Sverdlin napisal(a):
> A100/A133 SoCs feature a Low Rate ADC (LRADC) for Key application.
> 
> Specs:
> - Power supply voltage: 1.8 V
> - Reference voltage: 1.35 V
> - Interrupt support
> - Support Hold Key and General Key
> - Support normal, continue and single work mode
> - 6-bits resolution, sample rate up to 2 kHz
> - Voltage input range between 0 and 1.35 V
> 
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin at gmail.com>
> ---
> Changelog:
> v4:
> - added allwinner,sun50i-a100-lradc compatible
> v3:
> - new patch
> 
>  arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> index b3fb1e0ee796..7cb06b19b5a5 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
> @@ -466,6 +466,15 @@ ths: thermal-sensor at 5070400 {
>  			#thermal-sensor-cells = <1>;
>  		};
>  
> +		lradc: lradc at 5070800 {
> +			compatible = "allwinner,sun50i-a100-lradc", "allwinner,sun50i-r329-lradc";

Break this into two lines, like usb_otg below. With that:
Reviewed-by: Jernej Skrabec <jernej.skrabec at gmail.com>

Best regards,
Jernej Skrabec

> +			reg = <0x05070800 0x400>;
> +			interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_LRADC>;
> +			resets = <&ccu RST_BUS_LRADC>;
> +			status = "disabled";
> +		};
> +
>  		usb_otg: usb at 5100000 {
>  			compatible = "allwinner,sun50i-a100-musb",
>  				     "allwinner,sun8i-a33-musb";
>