[PATCH v3 2/3] riscv: dts: sophgo: cv180x: Add PWR_GPIO controller

[Inochi Amaoto]

On Fri, Jul 10, 2026 at 03:59:16PM +0800, Chen-Yu Yeh wrote:
> The CV180x/CV181x family has an additional DesignWare APB GPIO
> controller (PWR_GPIO) located in the always-on power domain at
> 0x5021000. Add the node so that boards can reference GPIOs in this
> bank, such as status LEDs.
> 
> Signed-off-by: Chen-Yu Yeh <chenyou910331 at gmail.com>
> ---
> The base address and interrupt number match the vendor SDK device
> tree (cv181x_base_riscv.dtsi: gpio at 05021000, PLIC interrupt 70,
> i.e. SOC_PERIPHERAL_IRQ(54)). Verified on Milk-V Duo 256M hardware
> via the onboard status LED on porte 2.
> 
>  arch/riscv/boot/dts/sophgo/cv180x.dtsi | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/sophgo/cv180x.dtsi b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> index 06b0ce5a2db7..25ad2bd265d7 100644
> --- a/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> +++ b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> @@ -160,6 +160,24 @@ portd: gpio-controller at 0 {
>  			};
>  		};
>  
> +		gpio4: gpio at 5021000 {
> +			compatible = "snps,dw-apb-gpio";
> +			reg = <0x5021000 0x1000>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			porte: gpio-controller at 0 {
> +				compatible = "snps,dw-apb-gpio-port";
> +				gpio-controller;
> +				#gpio-cells = <2>;
> +				ngpios = <32>;
> +				reg = <0>;
> +				interrupt-controller;
> +				#interrupt-cells = <2>;
> +				interrupts = <SOC_PERIPHERAL_IRQ(54) IRQ_TYPE_LEVEL_HIGH>;
> +			};
> +		};
> +

You should follow the device address order. not by the device name.

>  		saradc: adc at 30f0000 {
>  			compatible = "sophgo,cv1800b-saradc";
>  			reg = <0x030f0000 0x1000>;
> -- 
> 2.43.0
>