diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-09-07 08:19:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-07 08:19:51 +0200 |
| commit | a1922ed661ab2c1637d0b10cde933bd9cd33d965 (patch) | |
| tree | 0f1777542b385ebefd30b3586d830fd8ed6fda5b /drivers/ide/ide-xfer-mode.c | |
| parent | 75e33751ca8bbb72dd6f1a74d2810ddc8cbe4bdf (diff) | |
| parent | d28daf923ac5e4a0d7cecebae56f3e339189366b (diff) | |
Merge branch 'tracing/core' into tracing/hw-breakpoints
Conflicts:
arch/Kconfig
kernel/trace/trace.h
Merge reason: resolve the conflicts, plus adopt to the new
ring-buffer APIs.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/ide/ide-xfer-mode.c')
| -rw-r--r-- | drivers/ide/ide-xfer-mode.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c index af44be9d546..46d203ce60c 100644 --- a/drivers/ide/ide-xfer-mode.c +++ b/drivers/ide/ide-xfer-mode.c @@ -107,6 +107,18 @@ u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode) } EXPORT_SYMBOL_GPL(ide_get_best_pio_mode); +int ide_pio_need_iordy(ide_drive_t *drive, const u8 pio) +{ + /* + * IORDY may lead to controller lock up on certain controllers + * if the port is not occupied. + */ + if (pio == 0 && (drive->hwif->port_flags & IDE_PFLAG_PROBING)) + return 0; + return ata_id_pio_need_iordy(drive->id, pio); +} +EXPORT_SYMBOL_GPL(ide_pio_need_iordy); + int ide_set_pio_mode(ide_drive_t *drive, const u8 mode) { ide_hwif_t *hwif = drive->hwif; |