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authorAuke Kok <auke-jan.h.kok@intel.com>2007-06-08 15:46:36 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-11 16:02:10 -0700
commit44c10138fd4bbc4b6d6bff0873c24902f2a9da65 (patch)
tree6e16d3ec80c87490dc743f72da086356f2906ace /drivers/ata/pata_amd.c
parentb8a3a5214d7cc115f1ca3a3967b7229d97c46f4a (diff)
downloadlinux-44c10138fd4bbc4b6d6bff0873c24902f2a9da65.tar.bz2
PCI: Change all drivers to use pci_device->revision
Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/ata/pata_amd.c')
-rw-r--r--drivers/ata/pata_amd.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index b9c44c575ce3..b09facad63e1 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -623,17 +623,15 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
const struct ata_port_info *ppi[] = { NULL, NULL };
static int printed_version;
int type = id->driver_data;
- u8 rev;
u8 fifo;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
pci_read_config_byte(pdev, 0x41, &fifo);
/* Check for AMD7409 without swdma errata and if found adjust type */
- if (type == 1 && rev > 0x7)
+ if (type == 1 && pdev->revision > 0x7)
type = 2;
/* Check for AMD7411 */