1. 26 Feb, 2010 4 commits
    • Rafael J. Wysocki's avatar
      PM: Document device power attributes in sysfs · 971cb7fb
      Rafael J. Wysocki authored
      There are sysfs attributes in /sys/devices/.../power/ that haven't
      been documented yet in Documentation/ABI/.  Document them as
      appropriate.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      971cb7fb
    • Rafael J. Wysocki's avatar
      PM / Runtime: Add sysfs switch for disabling device run-time PM · 53823639
      Rafael J. Wysocki authored
      Add new device sysfs attribute, power/control, allowing the user
      space to block the run-time power management of the devices.  If this
      attribute is set to "on", the driver of the device won't be able to power
      manage it at run time (without breaking the rules) and the device will
      always be in the full power state (except when the entire system goes
      into a sleep state).
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      53823639
    • Linus Torvalds's avatar
      Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 · 68c6b859
      Linus Torvalds authored
      * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (48 commits)
        x86/PCI: Prevent mmconfig memory corruption
        ACPI: Use GPE reference counting to support shared GPEs
        x86/PCI: use host bridge _CRS info by default on 2008 and newer machines
        PCI: augment bus resource table with a list
        PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
        PCI: read bridge windows before filling in subtractive decode resources
        PCI: split up pci_read_bridge_bases()
        PCIe PME: use pci_pcie_cap()
        PCI PM: Run-time callbacks for PCI bus type
        PCIe PME: use pci_is_pcie()
        PCI / ACPI / PM: Platform support for PCI PME wake-up
        ACPI / ACPICA: Multiple system notify handlers per device
        ACPI / PM: Add more run-time wake-up fields
        ACPI: Use GPE reference counting to support shared GPEs
        PCI PM: Make it possible to force using INTx for PCIe PME signaling
        PCI PM: PCIe PME root port service driver
        PCI PM: Add function for checking PME status of devices
        PCI: mark is_pcie obsolete
        PCI: set PCI_PREF_RANGE_TYPE_64 in pci_bridge_check_ranges
        PCI: pciehp: second try to get big range for pcie devices
        ...
      68c6b859
    • Linus Torvalds's avatar
      Lower USB storage settling delay to something more reasonable · a4a47bc0
      Linus Torvalds authored
      The five-second delay can be rather annoying, and makes the system
      appear much less responsive when you connect a USB drive.
      
      It's also not entirely clear that it is needed - the settling delay has
      at least historically been an issue on some Apple iPods, for example,
      and some devices have been reported to need even more than the old 5s
      delay.
      
      But before we penalize them all, let's see how bad it really is.  Some
      of the reasons for long delays seem to be actual historical kernel bugs
      that should probably never have been papered over with a delay in the
      first place (there's a Ubuntu bug report for 2.6.20 about a NULL pointer
      dereference unless 'delay_use' is 8 or more, for example).
      
      It also looks like some distros have already shipped with delay_use=0,
      so the five second default may well be totally historical.
      
      In other words: "Let's see if anybody screams".
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a4a47bc0
  2. 25 Feb, 2010 12 commits
  3. 24 Feb, 2010 24 commits