linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: ipq9574: Enable WPS buttons

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Date:   Wed, 14 Jun 2023 12:42:14 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Anusha Rao <quic_anusha@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     quic_srichara@...cinc.com, quic_gokulsri@...cinc.com,
        quic_sjaganat@...cinc.com, quic_kathirav@...cinc.com,
        quic_arajkuma@...cinc.com, quic_poovendh@...cinc.com
Subject: Re: [PATCH 2/2] arm64: dts: qcom: ipq9574: Enable WPS buttons



On 14.06.2023 10:50, Anusha Rao wrote:
> Add support for wps buttons on GPIO 37.
> 
> Signed-off-by: Anusha Rao <quic_anusha@...cinc.com>
> ---
>  .../boot/dts/qcom/ipq9574-rdp-common.dtsi     | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
> index 999902bc70bd..fd5326dc1773 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
> @@ -8,6 +8,8 @@
>  
>  /dts-v1/;
>  
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
>  #include "ipq9574.dtsi"
>  
>  / {
> @@ -18,6 +20,20 @@
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +		pinctrl-0 = <&gpio_keys_default>;
> +		pinctrl-names = "default";
> +
> +		button-wps {
> +			label = "wps";
> +			linux,code = <KEY_WPS_BUTTON>;
> +			gpios = <&tlmm 37 GPIO_ACTIVE_LOW>;
> +			linux,input-type = <1>;
This line is unnecessary, it's set to 'key' by default. With that:

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
> +			debounce-interval = <60>;
> +		};
> +	};
>  };
>  
>  &blsp1_spi0 {
> @@ -114,6 +130,13 @@
>  		drive-strength = <8>;
>  		bias-disable;
>  	};
> +
> +	gpio_keys_default: gpio-keys-default-state {
> +		pins = "gpio37";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-pull-up;
> +	};
>  };
>  
>  &xo_board_clk {