vrtc: add debug nodes, set alarm time and wake up system [1/1]
authoryuehu mi <yuehu.mi@amlogic.com>
Fri, 8 Mar 2019 05:52:18 +0000 (13:52 +0800)
committerJianxin Pan <jianxin.pan@amlogic.com>
Wed, 13 Mar 2019 07:31:04 +0000 (23:31 -0800)
commit00caf231a9ac21116b4ce18979442f6ae11ce120
tree03fba8bb5b5bf67d27096399f506c693df8d7ebe
parent009354756a2ee7719d2002aa5243040c206a02d2
vrtc: add debug nodes, set alarm time and wake up system [1/1]

PD#TV-3085

Problem:
Add VRTC debug interface into TL1 Android P

Solution:
add wakeup and wakeup_time debug nodes

if you want to set alarm time, for example, set alarm wakeup time 10s
echo 10 > /sys/kernel/debug/wakeup_time

if you want to wake the system when an alarm is triggered, like this
echo 1 > /sys/kernel/debug/wakeup

Verify:
tl1_t962x2_x301

Change-Id: Ic40db0d9cb4ac2cab615206518d8db22b4095f72
Signed-off-by: yuehu mi <yuehu.mi@amlogic.com>
drivers/amlogic/vrtc/aml_vrtc.c