[PATCH] usb: musb: Force-disable pullup on shutdown

[Paul Cercueil]

When the musb is shutdown, for instance when the driver is unloaded,
force-disable the pullup. Otherwise, the host will still see the gadget
device even after the shutdown.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
 drivers/usb/musb/musb_gadget.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index ffe462a657b1..a78a7391031b 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1808,11 +1808,18 @@ int musb_gadget_setup(struct musb *musb)
 
 void musb_gadget_cleanup(struct musb *musb)
 {
+	unsigned long flags;
+
 	if (musb->port_mode == MUSB_HOST)
 		return;
 
 	cancel_delayed_work_sync(&musb->gadget_work);
 	usb_del_gadget_udc(&musb->g);
+
+	/* Force-disable the pull-up */
+	spin_lock_irqsave(&musb->lock, flags);
+	musb_pullup(musb, 0);
+	spin_unlock_irqrestore(&musb->lock, flags);
 }
 
 /*
-- 
2.11.0