Re: [PATCH v3 7/8] arm64: dts: qcom: sdm845-db845c: describe WiFi/BT properly

On 19/01/2026 18:08, Dmitry Baryshkov wrote:

[...]

> +	wcn3990-pmu {
> +		compatible = "qcom,wcn3990-pmu";
> +
> +		pinctrl-0 = <&sw_ctrl_default>;
> +		pinctrl-names = "default";
> +
> +		vddio-supply = <&vreg_s4a_1p8>;
> +		vddxo-supply = <&vreg_l7a_1p8>;
> +		vddrf-supply = <&vreg_l17a_1p3>;
> +		vddch0-supply = <&vreg_l25a_3p3>;
> +		vddch1-supply = <&vreg_l23a_3p3>;
> +
> +		swctrl-gpios = <&pm8998_gpios 3 GPIO_ACTIVE_HIGH>;

Do you know if the GPIO is common for whole sdm845, or it's only recommended as 
reference design, or nothing?

I did test defaulting to GPIO 3 on Pixel 3 and WiFi works as before, but since 
previous downstream kernel didn't touched GPIO 3 at all, I'm worried about 
toggling unrelated GPIO.

Thanks!
David

> +
> +		regulators {
> +			vreg_pmu_io: ldo0 {
> +				regulator-name = "vreg_pmu_io";
> +			};
> +
> +			vreg_pmu_xo: ldo1 {
> +				regulator-name = "vreg_pmu_xo";
> +			};
> +
> +			vreg_pmu_rf: ldo2 {
> +				regulator-name = "vreg_pmu_rf";
> +			};
> +
> +			vreg_pmu_ch0: ldo3 {
> +				regulator-name = "vreg_pmu_ch0";
> +			};
> +
> +			vreg_pmu_ch1: ldo4 {
> +				regulator-name = "vreg_pmu_ch1";
> +			};

-- 
David Heidelberg