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ACPI / EC: Fix a gap that ECDT EC cannot handle EC events

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It is possible to register _Qxx from namespace and use the ECDT EC to
perform event handling. The reported bug reveals that Windows is using ECDT
in this way in case the namespace EC is not present. This patch facilitates
Linux to support ECDT in this way.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=115021
Reported-and-tested-by: Luya Tshimbalanga <luya@fedoraproject.org>
Tested-by: Jonh Henderson <jw.hendy@gmail.com>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng
2016-09-07 16:50:21 +08:00
committed by Rafael J. Wysocki
parent 46922d2a3a
commit 2a5708409e
3 changed files with 98 additions and 23 deletions
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1
drivers/acpi/scan.c
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@@ -2044,6 +2044,7 @@ int __init acpi_scan_init(void)
}
acpi_update_all_gpes();
acpi_ec_ecdt_start();
acpi_scan_initialized = true;