[PATCH V2 0/2] Thermal: cpufreq cooling fix

[Zhang Rui <rui.zhang@intel.com>]

cpufreq cooling uses different frequencies as different cooling states.

But the per_cpu cpufreq_frequency_table may contain duplicate,
invalid entries, and it may be in either ascending or descending order.
And currently, code for parsing the per_cpu cpufreq_frequency_table
is used in several places and inconsistent.

To fix this,
New code is introduce in Patch 1/2, which contains the logic
of parsing per_cpu cpufreq_frequency_table, and this piece of
code can be used to:
1. get the maximum cooling states
2. translate cpu frequency to cooling state
3. translate cooling state to cpu frequency

Patch 2/2 converts exynos_thermal driver to use the new code
introduced in Patch 1/2.

History:
V2: remove cpu cooling table to avoid extra memory allocation.

V1: introduce code to convert per_cpu cpufreq_frequency_table
    to clean cpu cooling table (no invalid entry,
    no duplicate entry, in descending order).

I just run build test here. It would be great that some of you
can test it on exynos.
any comments?

thanks,
rui