xHCI: test and clear RWC bit
Introduce xhci_test_and_clear_bit() to clear RWC bit in PORTSC register.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 0ef4f20..30b3577 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1340,10 +1340,8 @@
xhci_ring_device(xhci, slot_id);
xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
/* Clear PORT_PLC */
- temp = xhci_readl(xhci, port_array[faked_port_index]);
- temp = xhci_port_state_to_neutral(temp);
- temp |= PORT_PLC;
- xhci_writel(xhci, temp, port_array[faked_port_index]);
+ xhci_test_and_clear_bit(xhci, port_array,
+ faked_port_index, PORT_PLC);
} else {
xhci_dbg(xhci, "resume HS port %d\n", port_id);
bus_state->resume_done[faked_port_index] = jiffies +