From: Grazvydas Ignotas <notasas@gmail.com>
Date: Tue, 26 Feb 2013 00:07:00 +0000 (+0200)
Subject: usb: musb: omap2430: turn off vbus on cable disconnect
X-Git-Tag: sz_154~25
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0431f2a3d8ceb9c9d72a6526bb4bc5145d180f0;p=pandora-kernel.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 unconditionally on USB_EVENT_NONE to be sure musb
session is ended on cable unplug so that PM works.
---

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 74f2fb98f1ee..81f05f3ce9c9 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -264,6 +264,8 @@ static int musb_otg_notifications(struct notifier_block *nb,
 	case USB_EVENT_NONE:
 		dev_dbg(musb->controller, "VBUS Disconnect\n");
 
+		omap2430_musb_set_vbus(musb, 0);
+
 		if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
 			if (musb->gadget_driver) {
 				pm_runtime_mark_last_busy(musb->controller);