[PATCH] USB: EHCI updates (4/4) driver model wakeup flags
This teaches the EHCI driver to use the new driver model wakeup flags,
replacing the similar ones in the HCD glue. It also adds a workaround
for the current glitch whereby PCI init doesn't init the wakeup flags
from the PCI PM capabilities. (EHCI controllers don't worry about
legacy mode; the PCI PM capability would always do the job.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 13f73a8..ac088bc 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -210,7 +210,16 @@
/* Serial Bus Release Number is at PCI 0x60 offset */
pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
- /* REVISIT: per-port wake capability (PCI 0x62) currently unused */
+ /* Workaround current PCI init glitch: wakeup bits aren't
+ * being set from PCI PM capability.
+ */
+ if (!device_can_wakeup(&pdev->dev)) {
+ u16 port_wake;
+
+ pci_read_config_word(pdev, 0x62, &port_wake);
+ if (port_wake & 0x0001)
+ device_init_wakeup(&pdev->dev, 1);
+ }
retval = ehci_pci_reinit(ehci, pdev);
done: