[Gta04-owner] sleeping disorder

Andreas Kemnade andreas at kemnade.info
Wed Jan 20 23:32:58 CET 2016


Hi,

parts of of my gta04 seem to need a sleeping pill.
They seem to be sometimes active despite not being used.
What I have done:
booted my 4.4 kernel via uboot commandline. Set init=/bin/bash
loaded w2sg0004
current consumption is at 64mA.
but...

I mounted debugfs
root@(none):/mnt# cat pm_debug/time 
usbhost_pwrdm (ON),OFF:0,RET:209739227320,INA:0,ON:15410675024
sgx_pwrdm (OFF),OFF:222150573730,RET:0,INA:0,ON:2999237061
core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:225149749756
per_pwrdm (ON),OFF:0,RET:0,INA:0,ON:225149627686
dss_pwrdm (ON),OFF:0,RET:215521057110,INA:0,ON:9628448505
cam_pwrdm (RET),OFF:0,RET:221982666016,INA:0,ON:3166809082
neon_pwrdm (ON),OFF:0,RET:215551147441,INA:0,ON:9598266621
mpu_pwrdm (ON),OFF:0,RET:215558868400,INA:0,ON:9590454110
iva2_pwrdm (RET),OFF:0,RET:222150726318,INA:0,ON:2998565674

For my taste there is too much on even though I am at 64mA.
Especially why is usbhost and dss on? If I am reading the table correctly
it is on for some time, then in some kind of standby (RET).
No usb modules are loaded. Lcd was not used in uboot.
Maybe the current consumption can be lowered if some of these find a better
sleep.

Regards,
Andreas
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