]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commit
ACPI / LPSS: Force LPSS quirks on boot
authorZhang Rui <rui.zhang@intel.com>
Thu, 22 Nov 2018 08:18:00 +0000 (09:18 +0100)
committerKhalid Elmously <khalid.elmously@canonical.com>
Wed, 6 Feb 2019 04:53:01 +0000 (04:53 +0000)
commita3911dfe63f7dd791377b0867261360dee74c305
tree42ca4e45a6cd42646648717ec18b6686f09fc639
parent25380e14ad8200f494a3884dcd17ddf2ab55baaf
ACPI / LPSS: Force LPSS quirks on boot

BugLink: https://bugs.launchpad.net/bugs/1804604
Commit 12864ff8545f (ACPI / LPSS: Avoid PM quirks on suspend and resume
from hibernation) bypasses lpss quirks for S3 and S4, by setting a flag
for S3/S4 in acpi_lpss_suspend(), and check that flag in
acpi_lpss_resume().

But this overlooks the boot case where acpi_lpss_resume() may get called
without a corresponding acpi_lpss_suspend() having been called.

Thus force setting the flag during boot.

Fixes: 12864ff8545f (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200989
Reported-and-tested-by: William Lieurance <william.lieurance@namikoda.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: 4.15+ <stable@vger.kernel.org> # 4.15+: 12864ff8545f (ACPI / LPSS: Avoid ...)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit f11fc4bc669b8622510c1039499f5a9d24248fec)
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Acked-by: Khaled Elmously <khalid.elmously@canonical.com>
Acked-by: Anthony Wong <anthony.wong@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
drivers/acpi/acpi_lpss.c