diff options
authorLv Zheng <>2017-07-12 11:09:17 +0800
committerGreg Kroah-Hartman <>2017-07-27 15:08:04 -0700
commit456a997498cb5217a61fba0f1929be7d182b5338 (patch)
parentb2966b109b1a2c23e626ad35fc03d4a52efd1aa4 (diff)
Revert "ACPI / EC: Enable event freeze mode..." to fix a regression
commit 9c40f956ce9b331493347d1b3cb7e384f7dc0581 upstream. On Lenovo ThinkPad X1 Carbon - the 5th Generation, enabling an earlier EC event freezing timing causes acpitz-virtual-0 to report a stuck 48C temparature. And with EC firmware revisioned as 1.14, without reverting back to old EC event freezing timing, the fan still blows up after a system resume. This reverts the culprit change so that the regression can be fixed without upgrading the EC firmware. Fixes: d30283057ecd (ACPI / EC: Enable event freeze mode to improve event handling) Link: Tested-by: Damjan Georgievski <> Signed-off-by: Lv Zheng <> Signed-off-by: Rafael J. Wysocki <> Signed-off-by: Greg Kroah-Hartman <>
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f01f6523a81..79152dbc5528 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -147,7 +147,7 @@ static unsigned int ec_storm_threshold __read_mostly = 8;
module_param(ec_storm_threshold, uint, 0644);
MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
-static bool ec_freeze_events __read_mostly = true;
+static bool ec_freeze_events __read_mostly = false;
module_param(ec_freeze_events, bool, 0644);
MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");