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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.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 6af47a0937b..bdc6e86e1f8 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -219,15 +219,19 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
219 /* Serial Bus Release Number is at PCI 0x60 offset */ 219 /* Serial Bus Release Number is at PCI 0x60 offset */
220 pci_read_config_byte(pdev, 0x60, &ehci->sbrn); 220 pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
221 221
222 /* Workaround current PCI init glitch: wakeup bits aren't 222 /* Keep this around for a while just in case some EHCI
223 * being set from PCI PM capability. 223 * implementation uses legacy PCI PM support. This test
224 * can be removed on 17 Dec 2009 if the dev_warn() hasn't
225 * been triggered by then.
224 */ 226 */
225 if (!device_can_wakeup(&pdev->dev)) { 227 if (!device_can_wakeup(&pdev->dev)) {
226 u16 port_wake; 228 u16 port_wake;
227 229
228 pci_read_config_word(pdev, 0x62, &port_wake); 230 pci_read_config_word(pdev, 0x62, &port_wake);
229 if (port_wake & 0x0001) 231 if (port_wake & 0x0001) {
232 dev_warn(&pdev->dev, "Enabling legacy PCI PM\n");
230 device_init_wakeup(&pdev->dev, 1); 233 device_init_wakeup(&pdev->dev, 1);
234 }
231 } 235 }
232 236
233#ifdef CONFIG_USB_SUSPEND 237#ifdef CONFIG_USB_SUSPEND