linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: sdm845-oneplus: add tri-state-key

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Date:   Thu, 19 Jan 2023 12:29:50 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Gergo Koteles <soyer@....hu>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jonathan Corbet <corbet@....net>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        Caleb Connolly <caleb@...nolly.tech>
Subject: Re: [PATCH 3/3] arm64: dts: qcom: sdm845-oneplus: add tri-state-key

On 19/01/2023 00:46, Gergo Koteles wrote:
> The tri-state-key is a sound profile switch found on the OnePlus 6,
> Android maps the states to "mute", "vibrate" and "ring", expose them as
> ABS_SND_PROFILE events.
> The previous GPIO numbers were wrong, the patch updates them to the correct
> ones.
> 
> Co-developed-by: Caleb Connolly <caleb@...nolly.tech>
> Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
> Signed-off-by: Gergo Koteles <soyer@....hu>
> ---
>  .../boot/dts/qcom/sdm845-oneplus-common.dtsi  | 43 ++++++++++++++++++-
>  1 file changed, 41 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> index 42cf4dd5ea28..33215ad17513 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> @@ -49,6 +49,44 @@ key-vol-up {
>  		};
>  	};
>  
> +	tri-state-key {
> +		compatible = "gpio-keys";
> +		label = "Tri-state key";
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tri_state_key_default>;
> +
> +		state-top {

Does not look like you tested the DTS against bindings. Please run `make
dtbs_check` (see Documentation/devicetree/bindings/writing-schema.rst
for instructions).

> +			label = "Tri-state key top";
> +			linux,input-type = <EV_ABS>;
> +			linux,code = <ABS_SND_PROFILE>;
> +			linux,input-value = <0>;
> +			gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <50>;
> +			linux,can-disable;
> +		};
> +
> +		state-middle {
> +			label = "Tri-state key middle";
> +			linux,input-type = <EV_ABS>;
> +			linux,code = <ABS_SND_PROFILE>;
> +			linux,input-value = <1>;
> +			gpios = <&tlmm 52 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <50>;
> +			linux,can-disable;
> +		};
> +
> +		state-bottom {
> +			label = "Tri-state key bottom";
> +			linux,input-type = <EV_ABS>;
> +			linux,code = <ABS_SND_PROFILE>;
> +			linux,input-value = <2>;
> +			gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <50>;
> +			linux,can-disable;
> +		};
> +	};
> +
>  	reserved-memory {
>  		/*
>  		 * The rmtfs_mem needs to be guarded due to "XPU limitations"
> @@ -588,9 +626,10 @@ &usb_1_hsphy {
>  &tlmm {
>  	gpio-reserved-ranges = <0 4>, <81 4>;
>  
> -	tri_state_key_default: tri_state_key_default {
> +	// The GPIOs have a hardware pullup.
> +	tri_state_key_default: tri-state-pins {
>  		mux {

You need to rebase.

Best regards,
Krzysztof