Sleep not work

santiagax99

Trying to send android to sleep via 'echo mem > /sys/power/state' but after few seconds system become available again

1. # echo mem > /sys/power/state
   
2. [ 2680.730028] PM: suspend entry 2019-06-05 19:52:06.877892777 UTC
   
3. [ 2680.730070] PM: Syncing filesystemdone.
   
4. [ 2680.733973] Freezing user spa(elapsed 0.003 seconds) done.
   
5. [ 2680.738087] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done.
   
6. [ 2680.741349] Suspending consoleno_console_suspend to debug)
   
7. INFO:    sleep mode config[0xde]:
   
8. INFO:           AP_PWROFF
   
9. INFO:           SLP_ARMPD
   
10. INFO:           SLP_PLLPD
    
11. INFO:           DDR_RET
    
12. INFO:           Scan wakeup system
    
13. INFO:           PWMINFO:    RK3399 the wake up information:
    
14. INFO:    wake up status: 0x4
    
15. INFO:           GPIO interrupt wakeup
    
16. INFO:           GPIO0: 0x8

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Is is possible to disable this GPIO0: 0x8 iterrupt wake up ?

santiagax99

echo freeze > /sys/power/state also not working as i expect

santiagax99

Okay, i've managed to disable GPIO_WAKE_UP via changing rockchip_suspend in dts:

1. diff --git a/kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly-port.dtsi b/kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly-port.dtsi
   
2. index d657082..ac10872 100644
   
3. --- a/kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly-port.dtsi
   
4. +++ b/kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly-port.dtsi
   
5. @@ -238,7 +238,7 @@
   
6.                 >;
   
7.         rockchip,wakeup-config = <
   
8.                 (0
   
9. -               | RKPM_GPIO_WKUP_EN
   
10. +/*             | RKPM_GPIO_WKUP_EN */
    
11.                 | RKPM_PWM_WKUP_EN
    
12.                 )
    
13.                 >;

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Now i have new issue - can't wake up the board even with power button press

penguin

According to your suspend log, the wake up source is the GPIO.
0x8 is the value of GPIO_INT_STATUS of GPIO0 which indicates that the GPIO0_B1 is the wake up source.
Check the schematic to see how it is connected.

Power button is a GPIO key, which will not wake up the system after disabling GPIO as wake up source.

santiagax99

I'm try to achieve next behaviour on power button press:
- board is going in "low power mode" (disabling any kind of wireless devices (WiFi, BT, WWAN, GPS), usb ports, fan)
- wakelocks are disabled at all
- wake-up available only by power button press again.


But i don't know if it possible
would be happy for any help or advice

penguin

Bypassing all wakelocks is not a good idea.

Why would you want to do that? What's your purpose?

santiagax99

Use board as CarPC
here is simple diagram https://docs.google.com/drawings ... DgrHePg3e9EEo0/edit
Some logic info:
AIO connected via ITPS (Intelligence PowerSuply),
when car is in OFF state, nothing is powered ON
when car Ignition is ON, ITPS opens 5V channel to AIO and powers it up.
after if Ignition become OFF then ITPS send to sleep AIO (via "pressing" power button) and checks that AIO is asleep (via LED pin)
after configured timeout (say 20min) if car still in OFF state, ITPS try to power off AIO (long press power button) and finally powers down itself
if IGNITION is ON before timeout, ITPS waking up AIO (by press power button) and check that AIO is awake (via LED pin)

So i want to minimize current on AIO by disabling any wireless and be sure that AIO will not wake up by itself.