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google/chromeec: Notify DPTF charger participant on AC state change 

The DPTF charger particpant device needs to be notified when the
AC state changes so it can re-evaluate the PPCC object and apply
the proper charge rate limit if necessary.

Change-Id: I6723754e2fe12862f50709875140fcadcddb18eb
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/189029
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Brad Geltz <brad.geltz@intel.com>
(cherry picked from commit ed1ee577014421b021e8814edc91a1b696bf9eed)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6951
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Duncan Laurie 2014-03-06 08:37:49 -08:00 committed by Isaac Christensen
parent 1f8d246d2f
commit 3f1500f54f
1 changed files with 7 additions and 0 deletions
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7
src/ec/google/chromeec/acpi/ec.asl
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@ -26,6 +26,7 @@
// Mainboard specific throttle handler
External (\_TZ.THRT, MethodObj)
External (\_SB.DPTF.TEVT, MethodObj)
External (\_SB.DPTF.TCHG, DeviceObj)
Device (EC0)
{
@ -205,6 +206,9 @@ Device (EC0)
Store ("EC: AC CONNECTED", Debug)
Store (ACEX, \PWRS)
Notify (AC, 0x80)
If (CondRefOf (\_SB.DPTF.TCHG)) {
Notify (\_SB.DPTF.TCHG, 0x80)
}
\PNOT ()
}
@ -214,6 +218,9 @@ Device (EC0)
Store ("EC: AC DISCONNECTED", Debug)
Store (ACEX, \PWRS)
Notify (AC, 0x80)
If (CondRefOf (\_SB.DPTF.TCHG)) {
Notify (\_SB.DPTF.TCHG, 0x80)
}
\PNOT ()
}