[SeaBIOS] [PATCH 3/7] xhci: Change xhci_hub_detect() to use connect status instead of link state.

[Kevin O'Connor]

Use the connect status bit to determine if a device is connected
instead of the port link state state machine status.  This makes the
driver more similar to the other drivers and may help diagnose devices
that take longer to boot up.

Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
---
 src/hw/usb-xhci.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/src/hw/usb-xhci.c b/src/hw/usb-xhci.c
index 87e5e64..5f91d89 100644
--- a/src/hw/usb-xhci.c
+++ b/src/hw/usb-xhci.c
@@ -339,15 +339,7 @@ xhci_hub_detect(struct usbhub_s *hub, u32 port)
 {
     struct usb_xhci_s *xhci = container_of(hub->cntl, struct usb_xhci_s, usb);
     u32 portsc = readl(&xhci->pr[port].portsc);
-
-    xhci_print_port_state(3, __func__, port, portsc);
-    switch (xhci_get_field(portsc, XHCI_PORTSC_PLS)) {
-    case PLS_U0:
-    case PLS_POLLING:
-        return 0;
-    default:
-        return -1;
-    }
+    return (portsc & XHCI_PORTSC_CCS) ? 0 : -1;
 }
 
 // Reset device on port
-- 
1.9.3