If the system rebooted, there might be i2c transfer at the
same time, it will make something unpredictable, because
the i2c host was reset, but the slave device wasn't, such
as rk808 pmic, so make sure the i2c transfer to be finished
before system shutdown at the reset mode.
This call chain is expected to be executed before kernel_restart
to do something before reset system. such as, i2c restart,
boot mode config.
Change-Id: I3c09f3acbe86595c295edc191aa38351adb7d5dc
Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
497e7bd6e1