Merge branch 'clk-pm' into clk-next

* clk-pm:
  clk: qcom: Remove redundant pm_runtime_mark_last_busy() calls
  clk: imx: Remove redundant pm_runtime_mark_last_busy() calls
  Documentation: PM: *_autosuspend() functions update last busy time
  PM: runtime: Mark last busy stamp in pm_request_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_put_sync_autosuspend()
  PM: runtime: Mark last busy stamp in pm_runtime_put_autosuspend()
  PM: runtime: Document return values of suspend-related API functions