Revert "ACPI / EC: Enable event freeze mode..." to fix a regression
authorLv Zheng <lv.zheng@intel.com>
Wed, 12 Jul 2017 03:09:17 +0000 (11:09 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Jul 2017 22:08:04 +0000 (15:08 -0700)
commit456a997498cb5217a61fba0f1929be7d182b5338
tree8a92ff5c7026bafd7000da2db60ad379fdc4b624
parentb2966b109b1a2c23e626ad35fc03d4a52efd1aa4
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: https://bugzilla.kernel.org/show_bug.cgi?id=191181#c168
Tested-by: Damjan Georgievski <gdamjan@gmail.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/acpi/ec.c