There is some limitation for AMD Promontory xHCI host to disable USB port
function. It will enable USB wake-up function then cause USB disable port
feature to fail. Workaround this issue on Promontory xHCI host is clear
PORT_WAKE_BITS.
Signed-off-by: Jiahau Chang <Lars_chang@xxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-hub.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 51e408b..fa5ef22 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1224,7 +1224,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
"actual port %d status = 0x%x\n",
wIndex, temp);
}
- else {
+ else {
xhci_set_remote_wake_mask(xhci, port_array,
wIndex, wake_mask);
temp = readl(port_array[wIndex]);
@@ -1469,7 +1469,6 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
t2 |= PORT_WKOC_E | PORT_WKCONN_E;
t2 &= ~PORT_WKDISC_E;
}
-
if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) && (hcd->speed < HCD_USB3))
t2 &= ~PORT_WAKE_BITS;
} else
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
