linux-kernel - Re: [PATCH 4/7] arm64: dts: qcom: sm8450-nagara: Add GPIO keys

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Date:   Thu, 22 Dec 2022 20:03:41 +0100
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org,
        Vinod Koul <vkoul@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/7] arm64: dts: qcom: sm8450-nagara: Add GPIO keys

On 2022-12-13 20:10:33, Konrad Dybcio wrote:
> With PMIC GPIOs now available, set up required pin settings and add
> gpio-keys.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  .../dts/qcom/sm8450-sony-xperia-nagara.dtsi   | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi b/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
> index 8e128efcb128..3d96b6757aa3 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara.dtsi
> @@ -27,6 +27,41 @@ chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
>  
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +		label = "gpio-keys";
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&focus_n &snapshot_n &vol_down_n>;
> +
> +		key-camera-focus {
> +			label = "Camera Focus";
> +			linux,code = <KEY_CAMERA_FOCUS>;
> +			gpios = <&pm8350b_gpios 8 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <15>;
> +			linux,can-disable;
> +			gpio-key,wakeup;

Let's use wakeup-source instead of this deprecated property to appease
the DT bindings.

- Marijn

> +		};
> +
> +		key-camera-snapshot {
> +			label = "Camera Snapshot";
> +			linux,code = <KEY_CAMERA>;
> +			gpios = <&pm8350b_gpios 5 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <15>;
> +			linux,can-disable;
> +			gpio-key,wakeup;
> +		};
> +
> +		key-volume-down {
> +			label = "Volume Down";
> +			linux,code = <KEY_VOLUMEDOWN>;
> +			gpios = <&pm8350_gpios 6 GPIO_ACTIVE_LOW>;
> +			debounce-interval = <15>;
> +			linux,can-disable;
> +			gpio-key,wakeup;
> +		};
> +	};
> +
>  	reserved-memory {
>  		adsp_mem: memory@...00000 {
>  			reg = <0x0 0x85700000 0x0 0x2800000>;
> @@ -562,6 +597,32 @@ &pm8350_gpios {
>  			  "NC",
>  			  "NC",
>  			  "PM8350_OPTION"; /* GPIO_10 */
> +
> +	vol_down_n: vol-down-n-state {
> +		pins = "gpio6";
> +		function = "normal";
> +		power-source = <1>;
> +		bias-pull-up;
> +		input-enable;
> +	};
> +};
> +
> +&pm8350b_gpios {
> +	snapshot_n: snapshot-n-state {
> +		pins = "gpio5";
> +		function = "normal";
> +		power-source = <0>;
> +		bias-pull-up;
> +		input-enable;
> +	};
> +
> +	focus_n: focus-n-state {
> +		pins = "gpio8";
> +		function = "normal";
> +		power-source = <0>;
> +		bias-pull-up;
> +		input-enable;
> +	};
>  };
>  
>  &pm8450_gpios {
> -- 
> 2.39.0
>