From 58a97ffeb2297f154659f339d77eb3f32c4d8b3e Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 14 Apr 2008 12:17:10 -0400 Subject: USB: HCDs use the do_remote_wakeup flag When a USB device is suspended, whether or not it is enabled for remote wakeup depends on the device_may_wakeup() setting. The setting is then saved in the do_remote_wakeup flag. Later on, however, the device_may_wakeup() value can change because of user activity. So when testing whether a suspended device is or should be enabled for remote wakeup, we should always test do_remote_wakeup instead of device_may_wakeup(). This patch (as1076) makes that change for root hubs in several places. The patch also adjusts uhci-hcd so that when an autostopped controller is suspended, the remote wakeup setting agrees with the value recorded in the root hub's do_remote_wakeup flag. And the patch adjusts ehci-hcd so that wakeup events on selectively suspended ports (i.e., the bus itself isn't suspended) don't turn on the PME# wakeup signal. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-hub.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/usb/host/ohci-hub.c') diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 28d6d775eb5f..cf3e1d255639 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -103,10 +103,9 @@ __acquires(ohci->lock) finish_unlinks (ohci, ohci_frame_no(ohci)); /* maybe resume can wake root hub */ - if (device_may_wakeup(&ohci_to_hcd(ohci)->self.root_hub->dev) || - autostop) + if (ohci_to_hcd(ohci)->self.root_hub->do_remote_wakeup || autostop) { ohci->hc_control |= OHCI_CTRL_RWE; - else { + } else { ohci_writel (ohci, OHCI_INTR_RHSC, &ohci->regs->intrdisable); ohci->hc_control &= ~OHCI_CTRL_RWE; } -- cgit v1.2.1