From 1cea2c22ec0eb579e53a79eb903cd69f6bca62ce Mon Sep 17 00:00:00 2001
From: Baolin Wang <baolin.wang@linaro.org>
Date: Mon, 16 Apr 2018 10:40:03 +0800
Subject: arm64: dts: sprd: Add GPIO and GPIO keys device nodes

This patch adds device nodes to enable one GPIO controller located on
digital chip, 2 EIC (external interrupt controller) controllers loacted
on PMIC and digital chip for Spreadtrum SC9860 platform.

Moreover this patch adds 3 GPIO keys relied on EIC controller to support
power key and volume up/down keys.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm64/boot/dts/sprd/sc9860.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'arch/arm64/boot/dts/sprd/sc9860.dtsi')

diff --git a/arch/arm64/boot/dts/sprd/sc9860.dtsi b/arch/arm64/boot/dts/sprd/sc9860.dtsi
index dcd03ffcda03..3f5160d2f130 100644
--- a/arch/arm64/boot/dts/sprd/sc9860.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc9860.dtsi
@@ -7,6 +7,8 @@
  */
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
 #include "whale2.dtsi"
 
 / {
@@ -679,5 +681,33 @@
 				};
 			};
 		};
+
+		gpio-keys {
+			compatible = "gpio-keys";
+
+			key-volumedown {
+				label = "Volume Down Key";
+				linux,code = <KEY_VOLUMEDOWN>;
+				gpios = <&eic_debounce 2 GPIO_ACTIVE_LOW>;
+				debounce-interval = <2>;
+				wakeup-source;
+			};
+
+			key-volumeup {
+				label = "Volume Up Key";
+				linux,code = <KEY_VOLUMEUP>;
+				gpios = <&pmic_eic 10 GPIO_ACTIVE_HIGH>;
+				debounce-interval = <2>;
+				wakeup-source;
+			};
+
+			key-power {
+				label = "Power Key";
+				linux,code = <KEY_POWER>;
+				gpios = <&pmic_eic 1 GPIO_ACTIVE_HIGH>;
+				debounce-interval = <2>;
+				wakeup-source;
+			};
+		};
 	};
 };
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