Re: [PATCH 4/5] arm64: dts: qcom: Add support for ECS LIVA QC710

From: Konrad Dybcio

Date: Mon Jan 12 2026 - 05:53:14 EST


On 1/11/26 9:35 AM, Val Packett wrote:
> Add a device tree for the ECS LIVA QC710 (Snapdragon 7c) mini PC/devkit.

[...]

> +&mdss_dp {
> + pinctrl-names = "default";
> + pinctrl-0 = <&dp_hot_plug_det>;

please keep the order of:

property-n
property-names

throughout the file

[...]

> +&remoteproc_adsp {
> + memory-region = <&adsp_mem>;
> + firmware-name = "qcom/sc7180/ecs/liva-qc710/qcadsp7180.mbn";
> + status = "okay";

And a consistent \n before 'status'

[...]

> +&usb_1_dwc3 {
> + dr_mode = "host";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + hub@1 {
> + compatible = "usb5e3,608";
> + reg = <1>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + r8152: ethernet@4 {

You don't need this label


> + compatible = "usbbda,8152";
> + reg = <4>;
> + };
> + };
> +};
> +
> +&usb_1_hsphy {
> + vdd-supply = <&vreg_l4a_0p8>;
> + vdda-pll-supply = <&vreg_l11a_1p8>;
> + vdda-phy-dpdm-supply = <&vreg_l17a_3p0>;
> + qcom,imp-res-offset-value = <8>;
> + qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_15_PERCENT>;
> + qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>;
> + qcom,bias-ctrl-value = <0x22>;
> + qcom,charge-ctrl-value = <3>;
> + qcom,hsdisc-trim-value = <0>;

Have you verified these values (e.g. by reading back the related
registers in Windows)?

[...]

> +&apps_rsc {
> + regulators-0 {
> + compatible = "qcom,pm6150-rpmh-regulators";
> + qcom,pmic-id = "a";
> +
> + vreg_s1a_1p1: smps1 {
> + regulator-min-microvolt = <1128000>;
> + regulator-max-microvolt = <1128000>;
> + };

Similarly, have you verified these?

> + soc_bkoff_default: soc-bkoff-deault-state {
> + pins = "gpio10";
> + function = "gpio";
> + drive-strength = <16>;
> + bias-disable;
> + };

This entry is unused

Konrad