tree bdbebe622a058edd688ddd29f96ea309950fb495
parent 4c24bb7f2fbab057c9d88394f8478fad218c1fa8
author Leo Yan <leo.yan@linaro.org> 1511504391 +0800
committer Leo Yan <leo.yan@linaro.org> 1512523113 +0800

Hikey960: Change to use recommended power state id format

ARM Power State Coordination Interface (ARM DEN 0022D) chapter
6.5 "Recommended StateID Encoding" defines the state ID which can be
used by platforms. The recommended power states can be presented by
below values; and it divides into three fields, every field has 4 bits
to present power states corresponding to core level, cluster level and
system level.

  0: Run
  1: Standby
  2: Retention
  3: Powerdown

This commit changes to use upper recommended power states definition on
Hikey960; and changes the power state validate function to check the
power state passed from kernel side.

Signed-off-by: Leo Yan <leo.yan@linaro.org>