auron: Add _PRW for LID0 ACPI Device
The kernel will not track wakeup events for devices unless they have
a defined _PRW. There is no EC output of the lid signal coming to
a GPIO and instead it pulses WAKE#. There is no actual GPE for
WAKE# so pretend that PCI_EXP is the right GPE.
From the EDS: "WAKE# is treated as a wake event, but does not cause
any bits to go active in the GPE_STS register."
BUG=chromium:427769
BRANCH=none
TEST=manual on auron
- Run lidclose + lidopen in rapid succession, verify that suspend
request is aborted.
Change-Id: I116f3b98f5f31f3ded7c6b403ffa35724176a52d
Signed-off-by: Wei Shun Chang <wei.shun.chang@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/226160
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
diff --git a/src/mainboard/google/auron/acpi/mainboard.asl b/src/mainboard/google/auron/acpi/mainboard.asl
index c489402..488401c 100644
--- a/src/mainboard/google/auron/acpi/mainboard.asl
+++ b/src/mainboard/google/auron/acpi/mainboard.asl
@@ -31,6 +31,11 @@
Store (\_SB.PCI0.LPCB.EC0.LIDS, \LIDS)
Return (\LIDS)
}
+
+
+ // There is no GPIO for LID, the EC pulses WAKE# pin instead.
+ // There is no GPE for WAKE#, so fake it with PCI_EXP_WAKE
+ Name (_PRW, Package(){ 0x69, 5 }) // PCI_EXP
}
Device (PWRB)
