diff options
Diffstat (limited to 'drivers/ide/ide-io.c')
| -rw-r--r-- | drivers/ide/ide-io.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 9560a8f4a86..4cece930114 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -836,9 +836,17 @@ static ide_startstop_t do_special (ide_drive_t *drive) if (set_pio_mode_abuse(drive->hwif, req_pio)) { if (hwif->set_pio_mode) hwif->set_pio_mode(drive, req_pio); - } else + } else { + int keep_dma = drive->using_dma; + ide_set_pio(drive, req_pio); + if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) { + if (keep_dma) + hwif->ide_dma_on(drive); + } + } + return ide_stopped; } else { if (drive->media == ide_disk) |