diff options
author | Len Brown <len.brown@intel.com> | 2010-01-19 23:10:04 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2010-01-20 00:54:15 -0500 |
commit | a6d72c189f6c4292ba1a323e8af24083790529f8 (patch) | |
tree | 4ae87d681a844997f94ff987d060b2c44dac30ed /drivers/input/ff-core.c | |
parent | 5d76b6f6c17572e662f5c99c2023adae92100855 (diff) |
ACPI: allow C3 > 1000usec
Do for C3 what the previous patch did for C2.
The C2 patch was in response to a highly visible
and multiply reported C-state/turbo failure,
while this change has no bug report in-hand.
This will enable C3 in Linux on systems where BIOS
overstates C3 latency in _CST. It will also enable
future systems which may actually have C3 > 1000usec.
Linux has always ignored ACPI BIOS C3 with exit latency > 1000 usec,
and the ACPI spec is clear that is correct FADT-supplied C3.
However, the ACPI spec explicitly states that _CST-supplied C-states
have no latency limits.
So move the 1000usec C3 test out of the code shared
by FADT and _CST code-paths, and into the FADT-specific path.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/input/ff-core.c')
0 files changed, 0 insertions, 0 deletions