[PATCH v4] usb: ehci-hcd: notify phy when connect change

[Richard Zhao <richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org>]

It still has below limitations:
- it does not work for multi-phy ehci
- the best place is after debounce, but I can't get
  phy there

Signed-off-by: Richard Zhao <richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
 drivers/usb/host/ehci-hcd.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b100f5f..724ac471 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -928,6 +928,21 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 			pstatus = ehci_readl(ehci,
 					 &ehci->regs->port_status[i]);
 
+			/* FIXME:
+			 * - it does not work for multi-phy ehci
+			 * - the best place is after debounce, but I can't get
+			 *   phy there
+			 */
+			if (unlikely(ehci->transceiver &&
+					(pstatus & PORT_CSC))) {
+				if (pstatus & PORT_CONNECT)
+					usb_phy_notify_connect(
+						ehci->transceiver, i);
+				else
+					usb_phy_notify_disconnect(
+						ehci->transceiver, i);
+			}
+
 			if (pstatus & PORT_OWNER)
 				continue;
 			if (!(test_bit(i, &ehci->suspended_ports) &&
-- 
1.7.5.4


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