linux-kernel - [PATCH 07/18] arm64: dts: qcom: msm8994-octagon: Add gpio-keys and Hall sensor

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Date:   Sun, 31 Jan 2021 02:38:38 +0100
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     phone-devel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Gustave Monce <gustave.monce@...look.com>
Subject: [PATCH 07/18] arm64: dts: qcom: msm8994-octagon: Add gpio-keys and Hall sensor

From: Gustave Monce <gustave.monce@...look.com>

This enables tje hardware keys as well as the Hall sensor.

Signed-off-by: Gustave Monce <gustave.monce@...look.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
---
 .../dts/qcom/msm8994-msft-lumia-octagon.dtsi  | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
index ff06b2161b10..69016d769d90 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
@@ -9,6 +9,9 @@
 
 #include "pm8994.dtsi"
 #include "pmi8994.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 /*
  * Delete all generic (msm8994.dtsi) reserved
@@ -42,6 +45,64 @@ chosen {
 		ranges;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		input-name = "gpio-keys";
+		autorepeat;
+
+		volupkey {
+			label = "Volume Up";
+			gpios = <&pm8994_gpios 3 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_VOLUMEUP>;
+			wakeup-source;
+			debounce-interval = <15>;
+		};
+
+		camsnapkey {
+			label = "Camera Snapshot";
+			gpios = <&pm8994_gpios 4 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_CAMERA>;
+			wakeup-source;
+			debounce-interval = <15>;
+		};
+
+		camfocuskey {
+			label = "Camera Focus";
+			gpios = <&pm8994_gpios 5 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_VOLUMEUP>;
+			wakeup-source;
+			debounce-interval = <15>;
+		};
+	};
+
+	gpio-hall-sensor {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&hall_front_default &hall_back_default>;
+
+		label = "GPIO Hall Effect Sensor";
+
+		hall-front-sensor {
+			label = "Hall Effect Front Sensor";
+			gpios = <&tlmm 42 GPIO_ACTIVE_HIGH>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			linux,can-disable;
+		};
+
+		hall-back-sensor {
+			label = "Hall Effect Back Sensor";
+			gpios = <&tlmm 75 GPIO_ACTIVE_HIGH>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_MACHINE_COVER>;
+			linux,can-disable;
+		};
+	};
+
 	reserved-memory {
 		/*
 		 * This device being a WP platform has a very different
@@ -235,3 +296,19 @@ &blsp2_uart2 {
 &sdhc1 {
 	status = "okay";
 };
+
+&tlmm {
+	hall_front_default: hall-front-default {
+		pins = "gpio42";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	hall_back_default: hall-back-default {
+		pins = "gpio75";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+};
-- 
2.30.0