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path: root/drivers/usb/host/ohci-pci.c
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Diffstat (limited to 'drivers/usb/host/ohci-pci.c')
-rw-r--r--drivers/usb/host/ohci-pci.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 1b09dde068e1..1bfe96f4d045 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -35,7 +35,10 @@ ohci_pci_start (struct usb_hcd *hcd)
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
- if(hcd->self.controller && hcd->self.controller->bus == &pci_bus_type) {
+ /* REVISIT this whole block should move to reset(), which handles
+ * all the other one-time init.
+ */
+ if (hcd->self.controller) {
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
/* AMD 756, for most chips (early revs), corrupts register
@@ -45,7 +48,8 @@ ohci_pci_start (struct usb_hcd *hcd)
&& pdev->device == 0x740c) {
ohci->flags = OHCI_QUIRK_AMD756;
ohci_dbg (ohci, "AMD756 erratum 4 workaround\n");
- // also somewhat erratum 10 (suspend/resume issues)
+ /* also erratum 10 (suspend/resume issues) */
+ device_init_wakeup(&hcd->self.root_hub->dev, 0);
}
/* FIXME for some of the early AMD 760 southbridges, OHCI
@@ -88,6 +92,13 @@ ohci_pci_start (struct usb_hcd *hcd)
ohci_dbg (ohci,
"enabled Compaq ZFMicro chipset quirk\n");
}
+
+ /* RWC may not be set for add-in PCI cards, since boot
+ * firmware probably ignored them. This transfers PCI
+ * PM wakeup capabilities (once the PCI layer is fixed).
+ */
+ if (device_may_wakeup(&pdev->dev))
+ ohci->hc_control |= OHCI_CTRL_RWC;
}
/* NOTE: there may have already been a first reset, to