Re: [PATCH v3 6/8] arm64: dts: rockchip: Add power key to GeekBox

Andreas Färber
2016-03-16T13:52:38Z

Am 16.03.2016 um 11:58 schrieb Andreas Färber:
> Am 11.03.2016 um 00:04 schrieb Julien Chauveau:
>>> @@ -70,6 +71,19 @@
>>> pinctrl-0 = <&ir_int>;
>>> };
>>>
>>> + keys: gpio-keys {
[...]
>>> + compatible = "gpio-keys";
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&pwr_key>;
>>> +
>>> + button@0 {
[...]
>>> + gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
>>> + label = "GPIO Power";
>>> + linux,code = <KEY_POWER>;
>>
>> According to Documentation/input/event-codes.txt, there’s a special event type for the power button.
>> Should we use it here for that purpose?
>>
>> linux,input-type = <EV_PWR>
>
> The other RK3368 boards don't, so unless you can give a justification to
> convert all boards yet again and test how this makes a difference, I'd
> rather not do experiments here but leave that to someone who knows what
> they're doing and then do it consistently...

For the record here's an evtest log:

geekbox:~ # evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0: gpio_ir_recv
/dev/input/event1: MCE IR Keyboard/Mouse (gpio-rc-recv)
/dev/input/event2: gpio-keys
Select the device event number [0-2]: 2
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "gpio-keys"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 116 (KEY_POWER)
Properties:
Testing ... (interrupt to exit)
Event: time 1458136008.850429, type 1 (EV_KEY), code 116 (KEY_POWER),
value 1
Event: time 1458136008.850429, -------------- SYN_REPORT ------------

systemd then goes on to shut down the system cleanly.

Regards,
Andreas

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