[PATCH v3] mfd: rk808: add reboot support to rk808.c

[Dmitry Osipenko]

20.12.2021 20:06, Peter Geis пишет:
> This adds reboot support to the rk808 pmic driver and enables it for
> the rk809 and rk817 devices.
> This only enables if the rockchip,system-power-controller flag is set.
> 
> Signed-off-by: Peter Geis <pgwipeout at gmail.com>
> Signed-off-by: Frank Wunderlich <frank-w at public-files.de>
> Reviewed-by: Dmitry Osipenko <digetx at gmail.com>
> ---
> This patch was created to address issues with psci-reset on rk356x
> chips. Until the rk356x series ATF open source code is released so we
> can fix the issue at the source, this is the only way to ensure reliable
> resetting on devices using these chips.
> 
> After testing the rk808 (thanks Robin!), it was found DEV_OFF_RST does
> not reset the PMIC to a power on state. Since the rk805 and rk818 match
> this register layout, I'm removing support for all three in the v2.
> It may be possible to add support to them using an RTC wakeup, but that
> has not been explored and is outside the scope of this patch.
> 
> Changelog:
> V4:
> - reorder rk808_restart_notify (Thanks Dmitry)
> - drop of_property_read_bool before unregister (Good catch Frank)

Might be better to resend it with v4 in the commit title, to avoid
confusion.