Re: [PATCH v2 6/7] arm64: dts: qcom: Add support for ECS LIVA QC710

From: Konrad Dybcio

Date: Wed Jan 21 2026 - 06:26:06 EST


On 1/21/26 12:30 AM, Val Packett wrote:
> Add a device tree for the ECS LIVA QC710 (Snapdragon 7c) mini PC/devkit.
>
> Working:
> - Wi-Fi (wcn3990 hw1.0)
> - Bluetooth
> - USB Type-A (USB3 and USB2)
> - Ethernet (over USB2)
> - HDMI Display
> - eMMC
> - SDHC (microSD slot)
>
> Not included:
> - HDMI Audio
> - EC (IT8987)
>
> Signed-off-by: Val Packett <val@xxxxxxxxxxxx>
> ---

[...]
> +&tlmm {
> + /*
> + * The TZ seem to protect those because some boards can have
> + * fingerprint sensor connected to this range. Not connected
> + * on this board
> + */
> + gpio-reserved-ranges = <58 5>;

Would it still work with <59 4>? 58 seems to not be related to a QUP,
rather as an audio MCLK output (would that be why +Nikita couldn't get
some sort of audio working on his aspire1? That DT has it reserved too)

[...]

> + data-pins {
> + pins = "sdc1_data";
> + drive-strength = <2>;
> + bias-pull-up;

here you do:

drive-strength
bias-

[...]

> + sdc2_default: sdc2-default-state {
> + clk-pins {
> + pins = "sdc2_clk";
> + bias-disable;
> + drive-strength = <16>;
> + };

here you do the inverse

(the former is preferred/more common)

otherwise

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad