1. 30 Apr, 2008 1 commit
    • Venkatesh Pallipadi's avatar
      ACPI: Fix acpi_processor_idle and idle= boot parameters interaction · 36a91358
      Venkatesh Pallipadi authored
      acpi_processor_idle and "idle=" boot parameter interaction is broken.
      The problem is that, at boot time acpi driver is checking for "idle=" boot
      option and not registering the acpi idle handler. But, when there is a CST
      changed callback (typically when switching AC <-> battery or suspend-resume)
      there are no checks for boot_option_idle_override and acpi idle handler tries
      to get installed with nasty side effects.
      
      With CPU_IDLE configured this issue causes results in a nasty oops on CST
      change callback and without CPU_IDLE there is no oops, but boot option
      of "idle=" gets ignored and acpi idle handler gets installed.
      
      Change the behavior to not do anything in acpi idle handler when there is a
      "idle=" boot option.
      
      Note that the problem is only there when "idle=" boot option is used.
      Signed-off-by: default avatarVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
      Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      36a91358
  2. 25 Apr, 2008 1 commit
  3. 17 Apr, 2008 2 commits
  4. 16 Apr, 2008 36 commits