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samus: Enable WLAN wake GPIO in _PRW

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Add ACPI device for WLAN and enable GPIO 10 as wake
source in _PRW.

BUG=chrome-os-partner:28234,chrome-os-partner:30671
BRANCH=None
TEST=boot on samus, check for WLAN in /proc/acpi/wakeup

Change-Id: I09b6eeae5bd88ee9d7e0b7e735ed871e8ae6963a
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/211820
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2014-08-11 08:06:04 -07:00 • committed by chrome-internal-fetch
commit c65ce028e6
1 changed files with 24 additions and 0 deletions
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24
src/mainboard/google/samus/acpi/mainboard.asl
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@ -70,6 +70,30 @@ Scope (\_SB)
}
}
/*
* WLAN connected to Root Port 3, becomes Root Port 1 after coalesce
*/
Scope (\_SB.PCI0.RP01)
{
Device (WLAN)
{
Name (_ADR, 0x00000000)
/* GPIO10 is PCH_WLAN_WAKE_L */
Name (GPIO, 10)
Name (_PRW, Package() { GPIO, 3 })
Method (_DSW, 3, NotSerialized)
{
If (LEqual (Arg0, 1)) {
// Enable GPIO as wake source
\_SB.PCI0.LPCB.GPIO.GWAK (^GPIO)
}
}
}
}
Scope (\_SB.PCI0.I2C0)
{
Device (ATPB)