2cxxx: check ide_config_drive_speed() return value
  au1xxx: fix au1xxx_set_pio_mode()
  icside: use ide_tune_dma()
  ide-pmac: fix PIO setup and enable autotune
  ide-pmac: use ide_tune_dma() (take 2)
  ide-pmac: remove pmac_ide_do_setfeature() (take 2)
  ide-pmac: remove nIEN clearing from pmac_ide_do_setfeature()
  ide-pmac: use __ide_wait_stat()
  ide-pmac: remove extra good status wait from pmac_ide_do_setfeature()
  ide: add __ide_wait_stat() helper
  ...
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