1. 27 Feb, 2018 1 commit
  2. 16 Jan, 2018 1 commit
    • Leo Yan's avatar
      Revert "Hikey960: Change to use recommended power state id format" · e1b27425
      Leo Yan authored
      This reverts commit fdae60b6.
      
      The commit fdae60b6
      
       changed the
      parameter encoding for the hikey960.  However that implies a DT change
      in the kernel side.  After submitting the DT change for upstreaming,
      the backward compatibility issue and the interface change raise some
      concerns from the Linux community about the issues related to kernel <->
      ATF alignment.  There is no way to detect a mis-alignment of those
      without a deep knowledge of the ATF and the kernel.  Furthermore, the
      failing calls to PSCI in the idle path (because of bad parameters), will
      lead to busy looping, implying: thermal issues and extra energy
      consumption.
      
      In regard of the Linux community concerns, the potential issues when the
      ATF and the kernel are not aligned, it is preferable to revert the
      commit.
      
      Cc: Vincent Guittot <vincent.guittot@linaro.org>
      Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
      Cc: Kevin Wang <jean.wangtao@linaro.org>
      Co-authored-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
      Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      e1b27425
  3. 06 Dec, 2017 1 commit
    • Leo Yan's avatar
      Hikey960: Change to use recommended power state id format · fdae60b6
      Leo Yan authored
      
      
      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: default avatarLeo Yan <leo.yan@linaro.org>
      fdae60b6
  4. 01 Nov, 2017 1 commit
  5. 13 Sep, 2017 1 commit
  6. 01 Sep, 2017 2 commits
  7. 12 Jul, 2017 1 commit
  8. 07 Jun, 2017 1 commit