1. 09 Dec, 2009 1 commit
    • Benjamin Herrenschmidt's avatar
      powerpc/macio: Rework hotplug media bay support · d58b0c39
      Benjamin Herrenschmidt authored
      The hotplug mediabay has tendrils deep into drivers/ide code
      which makes a libata port reather difficult. In addition it's
      ugly and could be done better.
      
      This reworks the interface between the mediabay and the rest
      of the world so that:
      
         - Any macio_driver can now have a mediabay_event callback
      which will be called when that driver sits on a mediabay and
      it's been either plugged or unplugged. The device type is
      passed as an argument. We can now move all the IDE cruft
      into the IDE driver itself
      
         - A check_media_bay() function can be used to take a peek
      at the type of device currently in the bay if any, a cleaner
      variant of the previous function with the same name.
      
         - A pair of lock/unlock functions are exposed to allow the
      IDE driver to block the hotplug callbacks during the initial
      setup and probing of the bay in order to avoid nasty race
      conditions.
      
         - The mediabay code no longer needs to spin on the status
      register of the IDE interface when it detects an IDE device,
      this is done just fine by the IDE code itself
      
      Overall, less code, simpler, and allows for another driver
      than our old drivers/ide based one.
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      d58b0c39
  2. 08 Dec, 2009 7 commits
  3. 01 Dec, 2009 1 commit
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  6. 23 Nov, 2009 1 commit
  7. 20 Nov, 2009 12 commits