ahci: implement AHCI_HFLAG_NO_PMP

[linux-2.6] / drivers / ata / pata_atiixp.c

diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 0077ee783d1e99ade56ed47e4d787b564b3ccf9a..9623f52955306d690ff7f78713ff24a7f6de08db 100644 (file)
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -173,6 +173,9 @@ static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  *
  *     When DMA begins we need to ensure that the UDMA control
  *     register for the channel is correctly set.
+ *
+ *     Note: The host lock held by the libata layer protects
+ *     us from two channels both trying to set DMA bits at once
  */
 
 static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
@@ -199,6 +202,9 @@ static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
  *
  *     DMA has completed. Clear the UDMA flag as the next operations will
  *     be PIO ones not UDMA data transfer.
+ *
+ *     Note: The host lock held by the libata layer protects
+ *     us from two channels both trying to set DMA bits at once
  */
 
 static void atiixp_bmdma_stop(struct ata_queued_cmd *qc)
@@ -262,7 +268,7 @@ static struct ata_port_operations atiixp_port_ops = {
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
 
-       .port_start     = ata_port_start,
+       .port_start     = ata_sff_port_start,
 };
 
 static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)