When a device is detached, clear the suspend bit (PORTSC_SUSPEND)
in the port status register.
The specs are not *that* clear what is supposed to happen in case
a suspended device is unplugged. But the enable bit (PORTSC_PED)
is cleared, and the specs mention setting suspend with enable being
unset is undefined behavior. So clearing them both looks reasonable,
and it actually fixes the reported bug.
https://bugzilla.redhat.com/show_bug.cgi?id=
1268879
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Message-id:
1445413462-18004-1-git-send-email-kraxel@redhat.com
ehci_queues_rip_device(s, port->dev, 0);
ehci_queues_rip_device(s, port->dev, 1);
- *portsc &= ~(PORTSC_CONNECT|PORTSC_PED);
+ *portsc &= ~(PORTSC_CONNECT|PORTSC_PED|PORTSC_SUSPEND);
*portsc |= PORTSC_CSC;
ehci_raise_irq(s, USBSTS_PCD);