linux-kernel - Re: [PATCH] arm64: dts: qcom: sm6125-seine: Clean up gpio-keys (volume down)

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Date:   Sat, 17 Dec 2022 16:04:17 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        phone-devel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.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] arm64: dts: qcom: sm6125-seine: Clean up gpio-keys
 (volume down)



On 17.12.2022 11:04, Marijn Suijten wrote:
> - Remove autorepeat (leave key repetition to userspace);
> - Remove unneeded status = "okay" (this is the default);
> - Allow the interrupt line for this button to be disabled;
> - Use a full, descriptive node name;
> - Set proper bias on the GPIO via pinctrl;
> - Sort properties.
> 
> Fixes: 82e1783890b7 ("arm64: dts: qcom: sm6125: Add support for Sony Xperia 10II")
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
>  .../qcom/sm6125-sony-xperia-seine-pdx201.dts  | 20 ++++++++++++++-----
>  1 file changed, 15 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> index 1b9e40d3d269..8c7c9331fd21 100644
> --- a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> +++ b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts
> @@ -41,17 +41,17 @@ extcon_usb: extcon-usb {
>  	};
>  
>  	gpio-keys {
> -		status = "okay";
>  		compatible = "gpio-keys";
> -		autorepeat;
> +		pinctrl-0 = <&gpio_keys_state>;
> +		pinctrl-names = "default";
>  
> -		key-vol-dn {
> +		key-volume-down {
>  			label = "Volume Down";
>  			gpios = <&tlmm 47 GPIO_ACTIVE_LOW>;
> -			linux,input-type = <1>;
>  			linux,code = <KEY_VOLUMEDOWN>;
> -			gpio-key,wakeup;
>  			debounce-interval = <15>;
> +			linux,can-disable;
> +			gpio-key,wakeup;
>  		};
>  	};
>  
> @@ -270,6 +270,16 @@ &sdhc_1 {
>  
>  &tlmm {
>  	gpio-reserved-ranges = <22 2>, <28 6>;
> +
> +	gpio_keys_state: gpio-keys-state {
> +		key-volume-down-pins {
I see no need for defining a wrapper node.
The other changes look good!

Konrad
> +			pins = "gpio47";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-disable;
> +			input-enable;
> +		};
> +	};
>  };
>  
>  &usb3 {