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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-12-04 02:54:27 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-12-10 00:22:18 +0100
commitb9ea0bae260f6aae546db224daa6ac1bd9d94b91 (patch)
tree69ef0ba9db4e2eec6a561ce00967e6e8e45e879b /Kbuild
parente42617b825f8073569da76dc4510bfa019b1c35a (diff)
downloadlinux-b9ea0bae260f6aae546db224daa6ac1bd9d94b91.tar.bz2
ACPI: PM: Avoid attaching ACPI PM domain to certain devices
Certain ACPI-enumerated devices represented as platform devices in Linux, like fans, require special low-level power management handling implemented by their drivers that is not in agreement with the ACPI PM domain behavior. That leads to problems with managing ACPI fans during system-wide suspend and resume. For this reason, make acpi_dev_pm_attach() skip the affected devices by adding a list of device IDs to avoid to it and putting the IDs of the affected devices into that list. Fixes: e5cc8ef31267 (ACPI / PM: Provide ACPI PM callback routines for subsystems) Reported-by: Zhang Rui <rui.zhang@intel.com> Tested-by: Todd Brandt <todd.e.brandt@linux.intel.com> Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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