tree b2c082ea33e1d3f3c051ae53a1732f8000a0a5bd
parent f3390862653f9473359eb9a587842bb04671e6df
author Alexandru Gagniuc <mr.nuke.me@gmail.com> 1397713667 -0500
committer Alexandru Gagniuc <mr.nuke.me@gmail.com> 1397848584 +0200

hp/pavilion_m6_1035dx: Shutdown on low battery with non-ACPI OS

Intercept the low battery SMI from the EC, and shut down the system
immediately. The EC only sends this SMI when the OS did not enable
ACPI mode, so ACPI OSes are not affected by this.
On the other hand, payloads such as GRUB or SeaBIOS will experience
the shutdown. This behavior is helpful for protecting the battery, for
example, when the OS fails to boot and we are stuck in the payload.
The low battery SMI is triggered at 10% charge, at which point the risk
of cell degradation exists.

Change-Id: I4c6c1a4feed8576cbdbb1945768de0805a1f5e42
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5527
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>