OMAP3: PM: move device-specific special cases from PM core into CPUidle

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In an effort to simplify the core idle path, move any device-specific
special case handling from the core PM idle path into the CPUidle
pre-idle checking path.

This keeps the core, interrupts-disabled idle path streamlined and
independent of any device-specific handling, and also allows CPUidle
to do the checking only for certain C-states as needed.  This patch
has the device checks in place for all states with the CHECK_BM flag,
namely all states >= C2.

This patch was inspired by a similar patch written by Tero Kristo as
part of a larger series to add INACTIVE state support.

NOTE: This is a baby-step towards decoupling device idle (or system
idle) from CPU idle.  Eventually, CPUidle should only manage the CPU,
and device/system idle should be managed elsewhere.

Cc: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

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This commit is contained in:

Kevin Hilman 2010-09-08 16:37:42 -07:00

parent 6cdee91257

commit e7410cf783

2 changed files with 56 additions and 16 deletions

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58

arch/arm/mach-omap2/cpuidle34xx.c

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14

arch/arm/mach-omap2/pm34xx.c

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