[PATCH] libata: PIO 0
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>
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1f3461a726
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b6079ca409
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@ -1498,6 +1498,12 @@ static int ata_bus_probe(struct ata_port *ap)
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if (classes[i] == ATA_DEV_UNKNOWN)
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classes[i] = ATA_DEV_NONE;
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/* after the reset the device state is PIO 0 and the controller
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state is undefined. Record the mode */
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for (i = 0; i < ATA_MAX_DEVICES; i++)
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ap->device[i].pio_mode = XFER_PIO_0;
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/* read IDENTIFY page and configure devices */
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for (i = 0; i < ATA_MAX_DEVICES; i++) {
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dev = &ap->device[i];
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