Freeze Low Power Mode is not working with i.MX6 SoloLite

[vipulkumar]

Hi,

I am using customized i.MX6 SL board with TPS65910 PMIC. I am able to wakeup the board from the STANDBY low power mode by using TPS65910 PMIC rtc but failed to wakeup the from the FREEZE low power mode.

OS - Linux

Kernel - 3.14

Yocto - 2.0

Procedure:

date -s "2016-07-20 11:03:59"

hwclock --systohc

echo +40 > /sys/class/rtc/rtc0/wakealarm

cat /proc/driver/rtc

rtc_time	: 11:05:30
rtc_date	: 2016-07-20
alrm_time	: 11:06:05
alrm_date	: 2016-07-20
alarm_IRQ	: yes
alrm_pending	: no
update IRQ enabled	: no
periodic IRQ enabled	: no

periodic IRQ frequency  : 1

max user IRQ frequency  : 64

24hr

: yes

echo freeze > /sys/power/state

PM: Syncing filesystems ...

done.

Freezing user space processes ... (elapsed 0.010 seconds) done.

Freezing remaining freezable tasks ... (elapsed 0.005 seconds) done.

Suspending console(s) (use no_console_suspend to debug)

[igorpadykov]

Hi Vipul

"Freeze" low power mode is not supported in i.MX6 nxp

bsp releases, please refer to attached Linux Manual

Chapter 22 Low-level Power Management (PM) Driver

for supported modes. One can try them using nxp bsp on

linux-2.6-imx.git - Freescale i.MX Linux Tree

Best regards

igor

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