linux-kernel - Re: [PATCH 7/7] arm64: dts: qcom: sc8280xp-lenovo-thinkpad-x13s: add alternate touchpad

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Message-ID: <20220806165940.GT14384@thinkpad>
Date:   Sat, 6 Aug 2022 22:29:40 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] arm64: dts: qcom: sc8280xp-lenovo-thinkpad-x13s: add
 alternate touchpad

On Fri, Aug 05, 2022 at 11:23:17AM +0200, Johan Hovold wrote:
> Add support for the alternate (second-source) touchpad found on some
> X13s laptops.
> 
> Note that alternate touchpad is kept disabled for now. The boot firmware
> should determine which device is actually populated and enable only the
> corresponding node.
> 
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Thanks,
Mani

> ---
>  .../dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts   | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index 1ca72f6ba55a..bdeb2d05aaa1 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -211,6 +211,22 @@ &qup2_i2c5 {
>  
>  	status = "okay";
>  
> +	touchpad@15 {
> +		compatible = "hid-over-i2c";
> +		reg = <0x15>;
> +
> +		hid-descr-addr = <0x1>;
> +		interrupts-extended = <&tlmm 182 IRQ_TYPE_LEVEL_LOW>;
> +		vdd-supply = <&vreg_misc_3p3>;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tpad_default>;
> +
> +		wakeup-source;
> +
> +		status = "disabled";
> +	};
> +
>  	touchpad@2c {
>  		compatible = "hid-over-i2c";
>  		reg = <0x2c>;
> -- 
> 2.35.1
> 

-- 
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