[PATCH v5 2/2] USB: notify phy when root hub port connect change

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

Phy may need to change settings when port connect change.

Signed-off-by: Richard Zhao <richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
 drivers/usb/core/hub.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 04fb834..e1a6d31 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -20,6 +20,7 @@
 #include <linux/usb.h>
 #include <linux/usbdevice_fs.h>
 #include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
 #include <linux/usb/quirks.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
@@ -4034,6 +4035,13 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 		}
 	}
 
+	if (unlikely(hcd->phy && !hdev->level)) {
+		if (portstatus & USB_PORT_STAT_CONNECTION)
+			usb_phy_notify_connect(hcd->phy, port1);
+		else
+			usb_phy_notify_disconnect(hcd->phy, port1);
+	}
+
 	/* Return now if debouncing failed or nothing is connected or
 	 * the device was "removed".
 	 */
-- 
1.7.9.5