Re: [PATCH v5 3/4] arm64: dts: qcom: Add HONOR MagicBook Art 14 device tree

From: Konrad Dybcio

Date: Mon Jun 29 2026 - 05:38:35 EST


On 6/28/26 7:26 PM, Konstantin Shabanov wrote:
> Introduce support for the HONOR MagicBook Art 14 laptop.
> This version is based on the initial work by Kirill A. Korinsky [1]
> and Valentin Manea [2].

[...]

> +&iris {
> + firmware-name = "qcom/x1e80100/HONOR/MRO-XXX/qcvss8380.mbn";
> +
> + status = "okay";
> +};
> +
> +&gpu {
> + status = "okay";
> +
> + zap-shader {
> + firmware-name = "qcom/x1e80100/HONOR/MRO-XXX/qcdxkmsuc8380.mbn";
> + };
> +};

'gp'u < 'i2'c < 'ir'is

[...]

> +
> + eusb6_reset_n: eusb6-reset-n-state {
> + pins = "gpio184";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + wcd_default: wcd-reset-n-active-state {

Seems like your editor played a trick on you here!

[...]

> +/* MP0 goes to the USB-A port (USB3) and FPC */
> +&usb_mp {
> + phys = <&usb_mp_hsphy0>, <&usb_mp_qmpphy0>;
> + phy-names = "usb2-0", "usb3-0";

https://lore.kernel.org/linux-arm-msm/5b3559ba-7c69-4418-a0a4-c5fa614830c4@xxxxxxxxxxxxxxxx/

I would assume that UEFI powers up all the PHYs - then, Linux
(effectively) doesn't know they exist, so they keep hogging power.

You can copy-paste the supplies from another laptop, as they are
dedicated to that usecase anyway

Konrad