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path: root/drivers/usb/host/ehci-pci.c
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Diffstat (limited to 'drivers/usb/host/ehci-pci.c')
-rw-r--r--drivers/usb/host/ehci-pci.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 76179c39c0e..07bb982e59f 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -44,28 +44,35 @@ static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev)
return 0;
}
-static int ehci_quirk_amd_SB800(struct ehci_hcd *ehci)
+static int ehci_quirk_amd_hudson(struct ehci_hcd *ehci)
{
struct pci_dev *amd_smbus_dev;
u8 rev = 0;
amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL);
- if (!amd_smbus_dev)
- return 0;
-
- pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev);
- if (rev < 0x40) {
- pci_dev_put(amd_smbus_dev);
- amd_smbus_dev = NULL;
- return 0;
+ if (amd_smbus_dev) {
+ pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev);
+ if (rev < 0x40) {
+ pci_dev_put(amd_smbus_dev);
+ amd_smbus_dev = NULL;
+ return 0;
+ }
+ } else {
+ amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x780b, NULL);
+ if (!amd_smbus_dev)
+ return 0;
+ pci_read_config_byte(amd_smbus_dev, PCI_REVISION_ID, &rev);
+ if (rev < 0x11 || rev > 0x18) {
+ pci_dev_put(amd_smbus_dev);
+ amd_smbus_dev = NULL;
+ return 0;
+ }
}
if (!amd_nb_dev)
amd_nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1510, NULL);
- if (!amd_nb_dev)
- ehci_err(ehci, "QUIRK: unable to get AMD NB device\n");
- ehci_info(ehci, "QUIRK: Enable AMD SB800 L1 fix\n");
+ ehci_info(ehci, "QUIRK: Enable exception for AMD Hudson ASPM\n");
pci_dev_put(amd_smbus_dev);
amd_smbus_dev = NULL;
@@ -131,7 +138,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
/* cache this readonly data; minimize chip reads */
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
- if (ehci_quirk_amd_SB800(ehci))
+ if (ehci_quirk_amd_hudson(ehci))
ehci->amd_l1_fix = 1;
retval = ehci_halt(ehci);
@@ -360,8 +367,8 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
* mark HW unaccessible. The PM and USB cores make sure that
* the root hub is either suspended or stopped.
*/
- spin_lock_irqsave (&ehci->lock, flags);
ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup);
+ spin_lock_irqsave (&ehci->lock, flags);
ehci_writel(ehci, 0, &ehci->regs->intr_enable);
(void)ehci_readl(ehci, &ehci->regs->intr_enable);