[PATCH v4 10/20] arm64: dts: hi3660: add power key dts node

[Guodong Xu]

From: Chen Jun <chenju...@huawei.com>

We use gpio_034 as power key on hikey960, and set gpio with pull-up
state, when key press the voltage on the gpio will come to lower, and
power key event will be reported.

Signed-off-by: Chen Jun <chenju...@huawei.com>
Signed-off-by: John Stultz <john.stu...@linaro.org>
Signed-off-by: Guodong Xu <guodong...@linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts 
b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index c25fff9..7aac35b 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -10,6 +10,8 @@
 #include "hi3660.dtsi"
 #include "hikey960-pinctrl.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
        model = "HiKey960";
@@ -34,6 +36,19 @@
                /* rewrite this at bootloader */
                reg = <0x0 0x0 0x0 0x0>;
        };
+
+       keys {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pwr_key_pmx_func &pwr_key_cfg_func>;
+
+               power {
+                       wakeup-source;
+                       gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+                       label = "GPIO Power";
+                       linux,code = <KEY_POWER>;
+               };
+       };
 };
 
 &i2c0 {
-- 
2.10.2