linux-kernel - Re: [PATCH 2/2] arm64: dts: msm8916-longcheer-l8150: Add Volume buttons

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Message-ID: <20191012151002.GB33229@gerhold.net>
Date:   Sat, 12 Oct 2019 17:10:02 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     nikitos.tr@...il.com
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: msm8916-longcheer-l8150: Add Volume
 buttons

On Sat, Oct 12, 2019 at 07:58:21PM +0500, nikitos.tr@...il.com wrote:
> From: Nikita Travkin <nikitos.tr@...il.com>
> 
> Add nodes for Volume UP button connected to GPIO and Volume DOWN button,
> which is handled by the pm8916 as is common with msm8916 devices.
> 
> Signed-off-by: Nikita Travkin <nikitos.tr@...il.com>

Reviewed-by: Stephan Gerhold <stephan@...hold.net>

> ---
>  .../boot/dts/qcom/msm8916-longcheer-l8150.dts | 41 +++++++++++++++++++
>  1 file changed, 41 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
> index e4d467e7dedb..d1ccb9472c8b 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
> +++ b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
> @@ -5,6 +5,7 @@
>  #include "msm8916.dtsi"
>  #include "pm8916.dtsi"
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
>  
>  / {
>  	model = "Longcheer L8150";
> @@ -113,9 +114,36 @@
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&usb_vbus_default>;
>  	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&gpio_keys_default>;
> +
> +		label = "GPIO Buttons";
> +
> +		volume-up {
> +			label = "Volume Up";
> +			gpios = <&msmgpio 107 GPIO_ACTIVE_LOW>;
> +			linux,code = <KEY_VOLUMEUP>;
> +		};
> +	};
>  };
>  
>  &msmgpio {
> +	gpio_keys_default: gpio_keys_default {
> +		pinmux {
> +			function = "gpio";
> +			pins = "gpio107";
> +		};
> +		pinconf {
> +			pins = "gpio107";
> +			drive-strength = <2>;
> +			bias-pull-up;
> +		};
> +	};
> +
>  	usb_vbus_default: usb-vbus-default {
>  		pinmux {
>  			function = "gpio";
> @@ -128,6 +156,19 @@
>  	};
>  };
>  
> +&spmi_bus {
> +	pm8916@0 {
> +		pon@800 {
> +			volume-down {
> +				compatible = "qcom,pm8941-resin";
> +				interrupts = <0x0 0x8 1 IRQ_TYPE_EDGE_BOTH>;
> +				bias-pull-up;
> +				linux,code = <KEY_VOLUMEDOWN>;
> +			};
> +		};
> +	};
> +};
> +
>  &smd_rpm_regulators {
>  	vdd_l1_l2_l3-supply = <&pm8916_s3>;
>  	vdd_l4_l5_l6-supply = <&pm8916_s4>;
> -- 
> 2.19.1
>