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[PATCH] libata: PIO 0

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Ensure the pio_mode is always setup. Don't do any setup on the controller b
just ensure the mode reporting is valid to avoid tons of special cases
in PATA driver code when mode switching on the fly.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2006-05-22 16:52:06 +01:00 committed by Jeff Garzik
parent 1f3461a726
commit b6079ca409
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/libata-core.c
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@ -1498,6 +1498,12 @@ static int ata_bus_probe(struct ata_port *ap)
if (classes[i] == ATA_DEV_UNKNOWN)
classes[i] = ATA_DEV_NONE;
/* after the reset the device state is PIO 0 and the controller
state is undefined. Record the mode */
for (i = 0; i < ATA_MAX_DEVICES; i++)
ap->device[i].pio_mode = XFER_PIO_0;
/* read IDENTIFY page and configure devices */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];