linux-kernel - [20/55] usb: musb: restore INDEX register in resume path

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Message-Id: <20110806000250.894464444@clark.kroah.org>
Date:	Fri, 05 Aug 2011 17:01:50 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Anand Gadiyar <gadiyar@...com>,
	Ajay Kumar Gupta <ajay.gupta@...com>,
	Felipe Balbi <balbi@...com>
Subject: [20/55] usb: musb: restore INDEX register in resume path

2.6.32-longterm review patch.  If anyone has any objections, please let us know.

------------------

From: Ajay Kumar Gupta <ajay.gupta@...com>

commit 3c5fec75e121b21a2eb35e5a6b44291509abba6f upstream.

Restoring the missing INDEX register value in musb_restore_context().
Without this suspend resume functionality is broken with offmode
enabled.

Acked-by: Anand Gadiyar <gadiyar@...com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@...com>
Signed-off-by: Felipe Balbi <balbi@...com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/usb/musb/musb_core.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1634,6 +1634,7 @@ void musb_dma_completion(struct musb *mu
 			}
 		}
 	}
+	musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 #else


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