From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sun, 24 Mar 2013 15:36:54 +0000 (+0200)
Subject: usb: musb: omap2430: turn off vbus on cable disconnect
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=2c1fe89db1cfa9826c94e848c14dc68de0e2b0d5;p=openwrt%2Fstaging%2Fblogic.git

usb: musb: omap2430: turn off vbus on cable disconnect

On USB_EVENT_ID event the musb glue enables VBUS by calling
omap2430_musb_set_vbus(musb, 1) that sets the session bit, but on
USB_EVENT_NONE reverse action is never made, and that breaks PM.

Disable VBUS on USB_EVENT_NONE to be sure musb session is ended
on cable unplug so that PM works.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 798e029e3db0..3551f1a30c65 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -291,6 +291,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 
 		musb->xceiv->last_event = USB_EVENT_NONE;
 		if (musb->gadget_driver) {
+			omap2430_musb_set_vbus(musb, 0);
 			pm_runtime_mark_last_busy(dev);
 			pm_runtime_put_autosuspend(dev);
 		}