From 4e25db3eeffceaf49fb3bfa76b50de1303d85929 Mon Sep 17 00:00:00 2001
From: Xingyu Chen <xingyu.chen@amlogic.com>
Date: Thu, 15 Mar 2018 11:11:12 +0800
Subject: [PATCH] arm64: dts: add adc and gpio keypad support for u200

PD#160889: arm64: dts: add adc keypad support for u200

Change-Id: I19e2e32023fdaf071bf0231de368e37be5e609f7
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
 .../boot/dts/amlogic/g12a_s905d2_u200.dts     | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/g12a_s905d2_u200.dts b/arch/arm64/boot/dts/amlogic/g12a_s905d2_u200.dts
index b3ec7862beee..501815b70030 100644
--- a/arch/arm64/boot/dts/amlogic/g12a_s905d2_u200.dts
+++ b/arch/arm64/boot/dts/amlogic/g12a_s905d2_u200.dts
@@ -249,6 +249,32 @@
 		status = "okay";
 	};
 
+	gpio_keypad{
+		compatible = "amlogic, gpio_keypad";
+		status = "okay";
+		scan_period = <20>;
+		key_num = <1>;
+		key_name = "power";
+		key_code = <116>;
+		key_pin = <&gpio_ao  GPIOAO_3  GPIO_ACTIVE_HIGH>;
+		interrupts = <0 70 1
+				0 71 2>;
+		interrupt-names = "irq_keyup", "irq_keydown";
+	};
+
+	adc_keypad {
+		compatible = "amlogic, adc_keypad";
+		status = "okay";
+		key_name = "vol-", "vol+", "enter";
+		key_num = <3>;
+		io-channels = <&saradc SARADC_CH2>;
+		io-channel-names = "key-chan-2";
+		key_chan = <SARADC_CH2 SARADC_CH2 SARADC_CH2>;
+		key_code = <114 115 28>;
+		key_val = <143 266 389>; //val=voltage/1800mV*1023
+		key_tolerance = <40 40 40>;
+	};
+
 	unifykey{
 		compatible = "amlogic, unifykey";
 		status = "ok";