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authorMatt DeVillier <matt.devillier@gmail.com>2018-02-11 16:07:12 -0600
committerDuncan Laurie <dlaurie@chromium.org>2018-02-12 15:56:55 +0000
commit047b23fc31e069c0cb372748e980da194ad59b95 (patch)
tree780aa537f364d3f72edc4cd4aa580dcb440a8924 /src
parent3be35976d6a640d0bc4fd40e232b6499b170431f (diff)
downloadcoreboot-047b23fc31e069c0cb372748e980da194ad59b95.tar.xz
ec/chromeec: Fix battery ACPI mutex level
Commit 07fe618 [chromeec: Add support for reading second battery info] added a mutex as part of the ACPI code to determine battery statuses. Windows is extremely picky about ACPI code, and attempting to acquire a level 1 mutex without first having acquired a level 0 mutex causes Windows to hang on boot. Since there's no reason to use a level 1 mutex here, change it to level 0. Test: Boot Windows on device with ChromeEC without hanging Change-Id: Icfb0817cfe0c49eb4527a12b507362939a6d32c6 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/23697 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src')
-rw-r--r--src/ec/google/chromeec/acpi/battery.asl2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ec/google/chromeec/acpi/battery.asl b/src/ec/google/chromeec/acpi/battery.asl
index d8056b03b2..0a0caec279 100644
--- a/src/ec/google/chromeec/acpi/battery.asl
+++ b/src/ec/google/chromeec/acpi/battery.asl
@@ -17,7 +17,7 @@
// Scope (EC0)
/* Mutex for EC battery index interface */
-Mutex (BATM, 1)
+Mutex (BATM, 0)
// Wait for desired battery index to be presented in shared memory
// Arg0 = battery index