From: Len Brown <len.brown@intel.com>
Date: Fri, 14 Feb 2014 05:50:34 +0000 (-0500)
Subject: intel_idle: allow sparse sub-state numbering, for Bay Trail
X-Git-Tag: v3.15-rc1~28^2~4^2^2^3~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24bfa950f114d5d770e482de73cf673a3b017f65;p=pandora-kernel.git

intel_idle: allow sparse sub-state numbering, for Bay Trail

Like acpi_idle, intel_idle compared sub-state numbers
to the number of supported sub-states -- discarding
sub-states numbers that were numbered >= the number of states.

But some Bay Trail SOCs use sparse sub-state numbers,
so we can't make such a comparison if we are going
to access those states.

So now we simply check that _some_ sub-states are
supported for the given state, and assume that the
sub-state number in our driver is valid.

In practice, the driver is correct, and even if it were not,
the hardware clips invalid sub-state requests to valid ones.

No entries in the driver require this change,
but Bay Trail will need it.

Signed-off-by: Len Brown <len.brown@intel.com>
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