按键驱动问题

[jinxiangwzh]

平台V536 系统Tinalinux4.9

在sys_config.fex文件中修改，后面的一组配置是我新加的，请问上升沿/下降沿触发在哪里配置？

[gpiokey]
compatible = "gpio-keys"
autorepeat = 1

[gpiokey/ok_key]
label = "ok_key"
gpios = port:PL04<0><default><default><1>
linux,input-type = <1>
linux,code = 28
wakeup-source = 1

[gpiokey/capture_key]
label = "capture_key"
gpios = port:PD19<6><default><default><default>
linux,input-type = <1>
linux,code = 0x1ba

lichee/linux-4.9/drivers/input/keyboard/gpio_keys.c这个模块加入了，并没有显示我新加入的”capture_key“,通过cat /dev/input/event2，按下按键也看不到事件过来，麻烦请指导以下菜鸟

root@pc:/# cat /proc/bus/input/devices
I: Bus=0019 Vendor=0001 Product=0001 Version=0100
N: Name="sunxi-gpadc0"
P: Phys=sunxigpadc0/input0
S: Sysfs=/devices/virtual/input/input0
U: Uniq=
H: Handlers=event0
B: PROP=0
B: EV=100003
B: KEY=800 c0040 0 0 10000000

I: Bus=0019 Vendor=0001 Product=0001 Version=0100
N: Name="axp2101-powerkey"
P: Phys=m1kbd/input2
S: Sysfs=/devices/platform/soc/pmu0/axp2101-powerkey/input/input1
U: Uniq=
H: Handlers=event1
B: PROP=0
B: EV=100007
B: KEY=100000 0 0 0
B: REL=0

I: Bus=0019 Vendor=0001 Product=0001 Version=0100
N: Name="gpiokey"
P: Phys=gpio-keys/input0
S: Sysfs=/devices/platform/soc/gpiokey/input/input2
U: Uniq=
H: Handlers=event2
B: PROP=0
B: EV=100003
B: KEY=4000000 0 0 0 0 0 0 0 0 0 0 0 0 10000000