diff options
| author | Paul Mackerras <paulus@samba.org> | 2007-02-07 14:05:13 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-02-07 14:05:13 +1100 |
| commit | 8423200553113cc031caa9b147f6150a8e26545c (patch) | |
| tree | 752c93a200c9ba056c7469c96f7e27d02c99291d /drivers/ata/sata_via.c | |
| parent | f03e64f2ca6ee3d0b7824536b1940497701fe766 (diff) | |
| parent | 62d0cfcb27cf755cebdc93ca95dabc83608007cd (diff) | |
Merge branch 'linux-2.6'
Diffstat (limited to 'drivers/ata/sata_via.c')
| -rw-r--r-- | drivers/ata/sata_via.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 88f0565c888..d3d5c0d5703 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -74,6 +74,7 @@ enum { static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); +static void svia_noop_freeze(struct ata_port *ap); static void vt6420_error_handler(struct ata_port *ap); static const struct pci_device_id svia_pci_tbl[] = { @@ -128,7 +129,7 @@ static const struct ata_port_operations vt6420_sata_ops = { .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .freeze = ata_bmdma_freeze, + .freeze = svia_noop_freeze, .thaw = ata_bmdma_thaw, .error_handler = vt6420_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, @@ -204,6 +205,15 @@ static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) outl(val, ap->ioaddr.scr_addr + (4 * sc_reg)); } +static void svia_noop_freeze(struct ata_port *ap) +{ + /* Some VIA controllers choke if ATA_NIEN is manipulated in + * certain way. Leave it alone and just clear pending IRQ. + */ + ata_chk_status(ap); + ata_bmdma_irq_clear(ap); +} + /** * vt6420_prereset - prereset for vt6420 * @ap: target ATA port |