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pata_serverworks: cleanup cable detection

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Merge identical cable routines for Dell and Sun systems into
common oem_cable() one.

Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2011-10-13 12:32:18 +02:00 committed by Jeff Garzik
parent 5860a5545a
commit e69a70d951
1 changed files with 7 additions and 30 deletions
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37
drivers/ata/pata_serverworks.c
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@ -58,32 +58,14 @@ static const char *csb_bad_ata100[] = {
};
/**
* dell_cable - Dell serverworks cable detection
* oem_cable - Dell/Sun serverworks cable detection
* @ap: ATA port to do cable detect
*
* Dell hide the 40/80 pin select for their interfaces in the top two
* bits of the subsystem ID.
* Dell PowerEdge and Sun Cobalt 'Alpine' hide the 40/80 pin select
* for their interfaces in the top two bits of the subsystem ID.
*/
static int dell_cable(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
return ATA_CBL_PATA80;
return ATA_CBL_PATA40;
}
/**
* sun_cable - Sun Cobalt 'Alpine' cable detection
* @ap: ATA port to do cable select
*
* Cobalt CSB5 IDE hides the 40/80pin in the top two bits of the
* subsystem ID the same as dell. We could use one function but we may
* need to extend the Dell one in future
*/
static int sun_cable(struct ata_port *ap)
static int oem_cable(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
@ -98,15 +80,10 @@ struct sv_cable_table {
int (*cable_detect)(struct ata_port *ap);
};
/*
* Note that we don't copy the old serverworks code because the old
* code contains obvious mistakes
*/
static struct sv_cable_table cable_detect[] = {
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, dell_cable },
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, dell_cable },
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, sun_cable },
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, oem_cable },
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, oem_cable },
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, oem_cable },
{ PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, ata_cable_40wire },
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, ata_cable_unknown },
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, ata_cable_unknown },