google/chromeec: Ensure \_SB.LID0 is present before using it
Since we want to support devices that do not have a lid but still use
EC, we need to conditionally check if referencing \_SB.LID0 is valid.
BUG=b:35775024
Change-Id: I92433460ec870fb07f48e67a6dfc61e3c036a129
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/18941
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl
index a40d0ac..67cee27 100644
--- a/src/ec/google/chromeec/acpi/ec.asl
+++ b/src/ec/google/chromeec/acpi/ec.asl
@@ -26,6 +26,9 @@
External (\_SB.DPTF.TCHG, DeviceObj)
#endif
External (\_SB.DPTF.TPET, MethodObj)
+#ifndef EC_ENABLE_LID_SWITCH
+External (\_SB.LID0, DeviceObj)
+#endif
Device (EC0)
{
@@ -169,7 +172,9 @@
#ifdef EC_ENABLE_LID_SWITCH
Notify (LID0, 0x80)
#else
- Notify (\_SB.LID0, 0x80)
+ If (CondRefOf (\_SB.LID0)) {
+ Notify (\_SB.LID0, 0x80)
+ }
#endif
}
@@ -181,7 +186,9 @@
#ifdef EC_ENABLE_LID_SWITCH
Notify (LID0, 0x80)
#else
- Notify (\_SB.LID0, 0x80)
+ If (CondRefOf (\_SB.LID0)) {
+ Notify (\_SB.LID0, 0x80)
+ }
#endif
}