linux-kernel - Re: [PATCH 3/4] arm64: dts: qcom: Add dts for Medion SPRCHRGD 14 S1

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Message-ID: <b18846d4-0733-429c-a667-a0c3c872f009@oss.qualcomm.com>
Date: Tue, 2 Dec 2025 16:15:19 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Georg Gottleuber <ggo@...edocomputers.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Ettore Chimenti <ettore.chimenti@...aro.org>,
        Srinivas Kandagatla <srini@...nel.org>, stefan.schmidt@...aro.org,
        stephan.gerhold@...aro.org, wse@...edocomputers.com, cs@...edo.de
Subject: Re: [PATCH 3/4] arm64: dts: qcom: Add dts for Medion SPRCHRGD 14 S1

On 12/2/25 3:37 PM, Georg Gottleuber wrote:
> Initial support for the Medion SPRCHRGD 14 S1, which is based on the
> Qualcomm Snapdragon X Elite SoC (X1E78100).

[...]

> +&iris {
> +	firmware-name = "qcom/x1e80100/medion/qcvss8380.mbn";
> +	status = "okay";

Please add an \n above status

> +};
> +
> +&lpass_tlmm {
> +	spkr_01_sd_n_active: spkr-01-sd-n-active-state {
> +		pins = "gpio12";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +		output-low;

Let's drop output-low from these two, the driver controls that over
GPIO APIs

> +	};
> +
> +	spkr_23_sd_n_active: spkr-23-sd-n-active-state {
> +		pins = "gpio13";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +		output-low;
> +	};

[...]

> +	eusb3_reset_n: eusb3-reset-n-state {
> +		pins = "gpio124";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +		output-low;

Similarly, for all three eUSBn, the regulator driver will assert the pin
as necessary

[...]

> +		perst-n-pins {
> +			pins = "gpio146";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-pull-down;

PERST# is active-low, switch to bias-disable

[...]

> +		perst-n-pins {
> +			pins = "gpio152";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-disable;

just like you did here

[...]

> +	wcd_default: wcd-reset-n-active-state {
> +		pins = "gpio191";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +		output-low;

ditto

Konrad