thinkpad-acpi: deprecate hotkey_bios_mask
commit3f389c2a9be71add86bf7f8828240bc2158f3a2d
authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Wed, 7 Jul 2010 02:05:47 +0000 (6 23:05 -0300)
committerHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Wed, 7 Jul 2010 02:05:47 +0000 (6 23:05 -0300)
tree74e4b0d0e6f8fb5af15aaf0abc2e3fcad3576df3
parenta731c63360c34cf76859251cadcd7a4246da61c5
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