Commit 9c40f956 authored Jul 12, 2017 by Lv Zheng Committed by Rafael J. Wysocki Jul 12, 2017

Revert "ACPI / EC: Enable event freeze mode..." to fix a regression

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: d3028305 (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>
Cc: 4.9+ <stable@vger.kernel.org> # 4.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 66259146

drivers/acpi/ec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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");

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