thinkpad-acpi: deprecate hotkey_bios_mask
commit4bd0084ceedfbde54c15afe182e491ee1280875e
authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Fri, 4 Dec 2009 11:13:07 +0000 (4 09:13 -0200)
committerHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Fri, 4 Dec 2009 11:13:07 +0000 (4 09:13 -0200)
tree287aa002e014030f06e8fc73e0770b58a52151aa
parenta9b96f04494d9d636a917e3d495544b19880ae05
thinkpad-acpi: deprecate hotkey_bios_mask

Some analysis of the ACPI DSDTs shows that the HKEY pre-enabled mask
is always 0x80c (FN+F3,FN+F4 and FN+F12), which are the hotkeys that
the second gen of HKEY firmware supported (the first gen didn't report
any hotkeys, the second reported these tree hotkeys but had no mask
support, and the third added mask support).

So, this is probably some sort of backwards compatibility with older
versions of the IBM ThinkVantage suite.  We have no use for that, and
I know of exactly ZERO users of that attribute, anyway.  Start the
process of getting rid of it.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Documentation/laptops/thinkpad-acpi.txt
drivers/platform/x86/thinkpad_acpi.c