From: Alan Stern <[EMAIL PROTECTED]>
This patch (as1016) prevents PCI-based host controllers from
undergoing a power-state change during a FREEZE or a PRETHAW. Such
changes are needed only during a SUSPEND.
Signed-off-by: Alan Stern <[EMAIL PROTECTED]>
CC: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/core/hcd-pci.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 3fb9af8..4246742 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -250,6 +250,12 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t
message)
pci_disable_device (dev);
}
+ if (message.event == PM_EVENT_FREEZE ||
+ message.event == PM_EVENT_PRETHAW) {
+ dev_dbg(hcd->self.controller, "--> no state change\n");
+ goto done;
+ }
+
if (!has_pci_pm) {
dev_dbg (hcd->self.controller, "--> PCI D0/legacy\n");
goto done;
--
1.5.3.8
-
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
