diff options
Diffstat (limited to 'drivers/ata/pata_atiixp.c')
| -rw-r--r-- | drivers/ata/pata_atiixp.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 86f85a2cab7..9623f529553 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -33,8 +33,9 @@ enum { ATIIXP_IDE_UDMA_MODE = 0x56 }; -static int atiixp_pre_reset(struct ata_port *ap, unsigned long deadline) +static int atiixp_pre_reset(struct ata_link *link, unsigned long deadline) { + struct ata_port *ap = link->ap; static const struct pci_bits atiixp_enable_bits[] = { { 0x48, 1, 0x01, 0x00 }, { 0x48, 1, 0x08, 0x00 } @@ -44,7 +45,7 @@ static int atiixp_pre_reset(struct ata_port *ap, unsigned long deadline) if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) return -ENOENT; - return ata_std_prereset(ap, deadline); + return ata_std_prereset(link, deadline); } static void atiixp_error_handler(struct ata_port *ap) @@ -172,6 +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) @@ -198,6 +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) @@ -232,7 +239,6 @@ static struct scsi_host_template atiixp_sht = { }; static struct ata_port_operations atiixp_port_ops = { - .port_disable = ata_port_disable, .set_piomode = atiixp_set_piomode, .set_dmamode = atiixp_set_dmamode, .mode_filter = ata_pci_default_filter, @@ -261,9 +267,8 @@ static struct ata_port_operations atiixp_port_ops = { .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, .irq_on = ata_irq_on, - .irq_ack = ata_irq_ack, - .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) |