diff options
| author | David Wu <david_wu@quanta.corp-partner.google.com> | 2018-03-21 16:48:53 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-08-28 15:14:42 +0000 |
| commit | 5dff396befca2241f8323b422cbf6cc5b66a7488 (patch) | |
| tree | ab023988a647046de152cee0c90f871b981e8c09 /src/ec/google/chromeec/acpi | |
| parent | 216345dd2480cf30df4e3ec8f323ce75f30e222e (diff) | |
| download | coreboot-5dff396befca2241f8323b422cbf6cc5b66a7488.tar.xz | |
acpi: Hide Chrome and coreboot specific devices
Some ACPI interfaces introduced by Chrome or coreboot do not
need drivers outside ChromeOS, for example Chrome EC or
coreboot table; or will be probed by direct ACPI calls (instead
of trying to find drivers by device IDs).
These interfaces should be set to hidden so non-ChromeOS systems,
for example Windows, won't have problem finding driver.
Interfaces changed:
- coreboot (BOOT0000), only used by Chrome OS / Linux kernel.
- Chrome OS EC
- Chrome OS EC PD
- Chrome OS TBMC
- Chrome OS RAMoops
BUG=b:72200466
BRANCH=eve
TEST=Boot into non-ChromeOS systems (for example Windows)
and checked ACPI devices on UI.
Change-Id: I9786cf9ee07b2c3f11509850604f2bfb3f3e710a
Signed-off-by: David Wu <David_Wu@quanta.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/1078211
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Trybot-Ready: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/28333
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/ec/google/chromeec/acpi')
| -rw-r--r-- | src/ec/google/chromeec/acpi/cros_ec.asl | 4 | ||||
| -rw-r--r-- | src/ec/google/chromeec/acpi/pd.asl | 4 | ||||
| -rw-r--r-- | src/ec/google/chromeec/acpi/tbmc.asl | 4 |
3 files changed, 12 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/acpi/cros_ec.asl b/src/ec/google/chromeec/acpi/cros_ec.asl index 1d7fb5227b..d0a5b68438 100644 --- a/src/ec/google/chromeec/acpi/cros_ec.asl +++ b/src/ec/google/chromeec/acpi/cros_ec.asl @@ -39,4 +39,8 @@ Device (CREC) Name (_DDN, "EC Base Switch Device") } #endif + Method(_STA, 0) + { + Return (0xB) + } } diff --git a/src/ec/google/chromeec/acpi/pd.asl b/src/ec/google/chromeec/acpi/pd.asl index a5a58f5534..7b799e82ee 100644 --- a/src/ec/google/chromeec/acpi/pd.asl +++ b/src/ec/google/chromeec/acpi/pd.asl @@ -18,4 +18,8 @@ Device (ECPD) Name (_HID, "GOOG0003") Name (_UID, 1) Name (_DDN, "EC PD Device") + Method(_STA, 0) + { + Return (0xB) + } } diff --git a/src/ec/google/chromeec/acpi/tbmc.asl b/src/ec/google/chromeec/acpi/tbmc.asl index 25a27ef1be..86a6de86ba 100644 --- a/src/ec/google/chromeec/acpi/tbmc.asl +++ b/src/ec/google/chromeec/acpi/tbmc.asl @@ -26,4 +26,8 @@ Device (TBMC) Return (0x0) } } + Method(_STA, 0) + { + Return (0xB) + } } |