Re: [PATCH AUTOSEL 5.4 130/350] power: supply: cpcap-battery: Check voltage before orderly_poweroff

Pavel Machek
2019-12-12T12:17:51Z

[-- Attachment #1: Type: text/plain, Size: 933 bytes --]

On Tue 2019-12-10 16:03:55, Sasha Levin wrote:
> From: Tony Lindgren <tony@atomide.com>
>
> [ Upstream commit 639c1524da3b273d20c42ff2387d08eb4b12e903 ]
>
> We can get the low voltage interrupt trigger sometimes way too early,
> maybe because of CPU load spikes. This causes orderly_poweroff() be
> called too easily.
>
> Let's check the voltage before orderly_poweroff in case it was not
> yet a permanent condition. We will be getting more interrupts anyways
> if the condition persists.
>
> Let's also show the measured voltages for low battery and battery
> empty warnings since we have them.

This is a tweak of power management parameters, not a fix for serious
bug.

Plus, it needs a lot of testing it did not get, yet.

Please drop from stable.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]