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(parent: c9ef59f) | patch
ide: don't enable IORDY at a probe time
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Mon, 15 Jun 2009 16:52:54 +0000 (18:52 +0200)
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Mon, 15 Jun 2009 16:52:54 +0000 (18:52 +0200)
commit5880b5de7101cc123778c5d17d4f3986351f3122
tree30deb7cee9dd1efadb2a2b27c6b5d38a0c055fd6tree | snapshot
parentc9ef59ff01b6bd1c7360a64fcc8556a1193c2ed0commit | diff
ide: don't enable IORDY at a probe time

* Add 'unsigned long port_flags' field to ide_hwif_t.

* Add IDE_PFLAG_PROBING port flag and keep it set during probing.

* Fix ide_pio_need_iordy() to not enable IORDY at a probe time
  (IORDY may lead to controller lock up on certain controllers
   if the port is not occupied).

Loosely based on the recent libata's fix by Tejun, thanks to Alan
for the hint that IDE may also need it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
drivers/ide/ide-probe.c diff | blob | history
drivers/ide/ide-xfer-mode.c diff | blob | history
include/linux/ide.h diff | blob | history
Domain: System / Uncategorized;