linux-kernel - Re: [PATCH] arm64: dts: qcom: sdm630-nile: add pinctrl for camera key

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Date: Thu, 14 Mar 2024 21:37:30 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Sebastian Raase <linux@...a.de>
Cc: marijn.suijten@...ainline.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>,
 Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sdm630-nile: add pinctrl for camera key

On 14/03/2024 21:00, Sebastian Raase wrote:
> Add pinctrl configuration for gpio-keys. Without this,
> camera button half-presses are not detected.
> 
> Tested on discovery and pioneer.
> 
> Fixes: e781633b6067 ("arm64: dts: qcom: Add support for Sony Xperia XA2/Plus/Ultra (Nile platform)")
> Signed-off-by: Sebastian Raase <linux@...a.de>
> ---
>  arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi b/arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi
> index 87d0293c728d..5eedca6f288f 100644
> --- a/arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi
> @@ -90,6 +90,8 @@ cam_vana_rear_vreg: cam-vana-rear-regulator {
>  
>  	gpio-keys {
>  		compatible = "gpio-keys";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&gpio_keys_default>;

A nit: Please reverse the order: pinctrl-0 then names
>  
>  		key-camera-focus {
>  			label = "Camera Focus";
> @@ -635,6 +637,13 @@ ts_lcd_id_active: ts-lcd-id-active-state {
>  		bias-disable;
>  	};
>  
> +	gpio_keys_default: gpio-keys-default {

Looks missing suffix (state) and test, so:

It does not look like you tested the DTS against bindings. Please run
`make dtbs_check W=1` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Best regards,
Krzysztof