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authorTejun Heo <htejun@gmail.com>2007-12-18 16:33:06 +0900
committerJeff Garzik <jeff@garzik.org>2008-01-23 05:24:12 -0500
commit021ee9a6da1cfc57f6a6c769c3c898bdd4753108 (patch)
treebb8c0246ded5a1d99320055343c7d277208fadd8 /drivers/ata/pata_via.c
parenta0f79b929acaba10d4780acd2543eff20bf4b5b0 (diff)
libata: reimplement ata_acpi_cbl_80wire() using ata_acpi_gtm_xfermask()
Reimplement ata_acpi_cbl_80wire() using ata_acpi_gtm_xfermask() and while at it relocate the function below ata_acpi_gtm_xfermask(). New ata_acpi_cbl_80wire() implementation takes @gtm, in both pata_via and pata_amd, use the initial GTM value. Both are trying to peek initial BIOS configuration, so using initial caching value makes sense. This fixes ACPI part of cable detection in pata_amd which previously always returned 0 because configuring PIO0 during reset clears DMA configuration. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_via.c')
-rw-r--r--drivers/ata/pata_via.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 453d72bf259..39627ab684b 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -185,7 +185,8 @@ static int via_cable_detect(struct ata_port *ap) {
if (ata66 & (0x10100000 >> (16 * ap->port_no)))
return ATA_CBL_PATA80;
/* Check with ACPI so we can spot BIOS reported SATA bridges */
- if (ata_acpi_cbl_80wire(ap))
+ if (ata_acpi_init_gtm(ap) &&
+ ata_acpi_cbl_80wire(ap, ata_acpi_init_gtm(ap)))
return ATA_CBL_PATA80;
return ATA_CBL_PATA40;
}