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dptf: chromeec: Notify DPTF Charger participant on AC state change

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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.

BUG=chromium:349681
TEST=emerge-rambi chromeos-coreboot-rambi
BRANCH=baytrail

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>
This commit is contained in:
Duncan Laurie 2014-03-06 08:37:49 -08:00 • committed by chrome-internal-fetch
commit ed1ee57701
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 ()
}