On 08/19/2016 12:26 AM, Gautham R. Shenoy wrote:

From: "Gautham R. Shenoy" <redacted>

Currently all the idle states registered by a cpu-idle driver are
enabled by default. This patch adds a mechanism which allows the
driver to hint if an idle-state should start in a disabled state. The
cpu-idle core will use this hint to appropriately initialize the
usage->disable knob of the CPU device idle state.

Why do you need to do that ?

The state can be enabled at run time by echo'ing a zero to the sysfs
"disable" control file.

... for each cpu.


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