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Date:   Fri, 10 Apr 2020 05:32:00 +0300
From:   Iskren Chernev <iskren.chernev@...il.com>
To:     linux-arm-msm@...r.kernel.org
Cc:     Daniele Debernardi <drebrez@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH 3/6] ARM: dts: qcom: msm8974-klte: Add gpio-keys nodes

From: Daniele Debernardi <drebrez@...il.com>

This introduces the gpio-keys nodes for volume/home keys and the
associated pinctrl state.

Signed-off-by: Daniele Debernardi <drebrez@...il.com>
---
 .../boot/dts/qcom-msm8974-samsung-klte.dts    | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index 6b184819f1ce..21335999a024 100644
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -3,6 +3,9 @@
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
 #include "qcom-pma8084.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 / {
 	model = "Samsung Galaxy S5";
@@ -197,4 +200,50 @@ serial@...1e000 {
 		status = "ok";
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		input-name = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_keys_pin_a>;
+
+		volume-down {
+			label = "volume_down";
+			gpios = <&pma8084_gpios 2 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_VOLUMEDOWN>;
+			debounce-interval = <15>;
+		};
+
+		home-key {
+			label = "home_key";
+			gpios = <&pma8084_gpios 3 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_HOMEPAGE>;
+			wakeup-source;
+			debounce-interval = <15>;
+		};
+
+		volume-up {
+			label = "volume_up";
+			gpios = <&pma8084_gpios 5 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <KEY_VOLUMEUP>;
+			debounce-interval = <15>;
+		};
+	};
+};
+
+&spmi_bus {
+	pma8084@0 {
+		gpios@...0 {
+			gpio_keys_pin_a: gpio-keys-active {
+				pins = "gpio2", "gpio3", "gpio5";
+				function = "normal";
+
+				bias-pull-up;
+				power-source = <PMA8084_GPIO_S4>;
+			};
+		};
+	};
 };
-- 
2.26.0

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