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authorFrans Hendriks <fhendriks@eltan.com>2019-12-06 11:54:01 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-12-17 13:10:27 +0000
commit9cb88a70f7a636806752542216e177ba625e77d2 (patch)
tree644be51cf2404c8fcf071e153b7a5dda4bf7698f /src/ec/acpi
parent50a445489225b94339adc15fe8d1b6c3fa57b095 (diff)
downloadcoreboot-9cb88a70f7a636806752542216e177ba625e77d2.tar.xz
src: Conditionally include TEVT
ACPI method TEVT is reported as unused by iASL (20190509) when ChromeEC support is not enabled. The message is “Method Argument is never used (Arg0)” on Method (TEVT, 1, NotSerialized), which indicates the TEVT method is empty. The solution is to only enable the TEVT code in mainboard or SoC when an EC is used that uses this event. The TEVT code in the EC is only enabled if the mainboard or SoC code implements TEVT. The TEVT method will be removed from the ASL code when the EC does not support TEVT. BUG=N/A TEST=Tested on facebook monolith. Change-Id: I8d2e14407ae2338e58797cdc7eb7d0cadf3cc26e Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37560 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Diffstat (limited to 'src/ec/acpi')
-rw-r--r--src/ec/acpi/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/ec/acpi/Kconfig b/src/ec/acpi/Kconfig
index 3081a86609..1fa707abdc 100644
--- a/src/ec/acpi/Kconfig
+++ b/src/ec/acpi/Kconfig
@@ -2,3 +2,9 @@ config EC_ACPI
bool
help
ACPI Embedded Controller interface. Mostly found in laptops.
+
+config EC_SUPPORTS_DPTF_TEVT
+ bool
+ help
+ The EC ASL code supports calling of TEVT method when provided by
+ SoC or mainboard.