ACPI / scan: Add labels for PNP button devices
authorBjorn Helgaas <bhelgaas@google.com>
Mon, 25 Mar 2019 18:34:03 +0000 (13:34 -0500)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Tue, 26 Mar 2019 21:36:46 +0000 (22:36 +0100)
commit5ceb5f0522bdc20d507fef2cd77fec2caa4e541e
tree06df91aee867de9f598dffa4f49ca096cf99299d
parent40381a3c1fa3ed37458c7f745e51fc81e9b48fe2
ACPI / scan: Add labels for PNP button devices

Subsequent code treats button_device_ids[] entries differently, and
it's hard to follow without a hint as to which is which.

Add comments to identify the power button, lid, and sleep button
devices.

The "PNP" prefix is owned by Microsoft, so they distribute the
canonical list of "PNP" IDs.

Link: https://uefi.org/PNP_ACPI_Registry
Link: https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/devids.txt
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/scan.c