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ec/google/chromeec: provide optional ASL lid switch implementation

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Instead of relying on the mainboards to provide their own LID0
ACPI device, provide the infrastructure so that the mainboards
can signal to the EC ASL code to provide the default lid switch
implementation.

BUG=chrome-os-partner:56677

Change-Id: Ie43b1c4f8522db1245f1f479bfdb685d3066121d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16732
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Aaron Durbin
2016-09-23 16:06:14 -05:00
parent c64a6d63ed
commit 05201d7783
1 changed files with 24 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/ec/google/chromeec/acpi/ec.asl
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@@ -68,6 +68,22 @@ Device (EC0)
#include "emem.asl" #include "emem.asl"
} }
#ifdef EC_ENABLE_LID_SWITCH
/* LID Switch */
Device (LID0)
{
Name (_HID, EisaId ("PNP0C0D"))
Method (_LID, 0)
{
Return (^^LIDS)
}
#ifdef EC_ENABLE_WAKE_PIN
Name (_PRW, Package () { EC_ENABLE_WAKE_PIN, 0x5 })
#endif
}
#endif
Method (TINS, 1, Serialized) Method (TINS, 1, Serialized)
{ {
Switch (ToInteger (Arg0)) Switch (ToInteger (Arg0))
@@ -150,7 +166,11 @@ Device (EC0)
{ {
Store ("EC: LID CLOSE", Debug) Store ("EC: LID CLOSE", Debug)
Store (LIDS, \LIDS) Store (LIDS, \LIDS)
#ifdef EC_ENABLE_LID_SWITCH
Notify (LID0, 0x80)
#else
Notify (\_SB.LID0, 0x80) Notify (\_SB.LID0, 0x80)
#endif
} }
// Lid Open Event // Lid Open Event
@@ -158,7 +178,11 @@ Device (EC0)
{ {
Store ("EC: LID OPEN", Debug) Store ("EC: LID OPEN", Debug)
Store (LIDS, \LIDS) Store (LIDS, \LIDS)
#ifdef EC_ENABLE_LID_SWITCH
Notify (LID0, 0x80)
#else
Notify (\_SB.LID0, 0x80) Notify (\_SB.LID0, 0x80)
#endif
} }
// Power Button // Power Button