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ACPI: PM: Only mark EC GPE for wakeup on Intel systems

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When using s2idle on a variety of AMD notebook systems, they are
experiencing spurious events that the EC or SMU are in the wrong
state leading to a hard time waking up or higher than expected
power consumption.

These events only occur when the EC GPE is inadvertently set as a wakeup
source. Originally the EC GPE was only set as a wakeup source when using
the intel-vbtn or intel-hid drivers in commit 10a08fd65e ("ACPI: PM:
Set up EC GPE for system wakeup from drivers that need it") but during
testing a reporter discovered that this was not enough for their ASUS
Zenbook UX430UNR/i7-8550U to wakeup by lid event or keypress.
Marking the EC GPE for wakeup universally resolved this for that
reporter in commit b90ff3554a ("ACPI: PM: s2idle: Always set up EC GPE
for system wakeup").

However this behavior has lead to a number of problems:

 * On both Lenovo T14 and P14s the keyboard wakeup doesn't work, and
   sometimes the power button event doesn't work.
 * On HP 635 G7 detaching or attaching AC during suspend will cause
   the system not to wakeup
 * On Asus vivobook to prevent detaching AC causing resume problems
 * On Lenovo 14ARE05 to prevent detaching AC causing resume problems
 * On HP ENVY x360  to prevent detaching AC causing resume problems

As there may be other Intel systems besides ASUS Zenbook UX430UNR/i7-8550U
that don't use intel-vbtn or intel-hid, avoid these problems by only
universally marking the EC GPE wakesource on non-AMD systems.

Link: https://patchwork.kernel.org/project/linux-pm/cover/5997740.FPbUVk04hV@kreacher/#22825489
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1230
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1629
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mario Limonciello 2021-06-30 14:46:06 -05:00 committed by Rafael J. Wysocki
parent 5e6928249b
commit 7b167c4cb4
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/acpi/x86/s2idle.c
View File

@ -417,11 +417,15 @@ static int lps0_device_attach(struct acpi_device *adev,
mem_sleep_current = PM_SUSPEND_TO_IDLE;
/*
* Some LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U, require the
* EC GPE to be enabled while suspended for certain wakeup devices to
* work, so mark it as wakeup-capable.
* Some Intel based LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U don't
* use intel-hid or intel-vbtn but require the EC GPE to be enabled while
* suspended for certain wakeup devices to work, so mark it as wakeup-capable.
*
* Only enable on !AMD as enabling this universally causes problems for a number
* of AMD based systems.
*/
acpi_ec_mark_gpe_for_wake();
if (!acpi_s2idle_vendor_amd())
acpi_ec_mark_gpe_for_wake();
return 0;
}