From: Ajay Kumar Gupta <ajay.gupta@ti.com>
Date: Fri, 8 Jul 2011 09:36:13 +0000 (+0530)
Subject: usb: musb: restore INDEX register in resume path
X-Git-Tag: v2.6.35.14~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e7d89101d9f1ab17f4123659bb796d7e4f7bcb8;p=thirdparty%2Fkernel%2Fstable.git

usb: musb: restore INDEX register in resume path

[ upstream commit 3c5fec75e121b21a2eb35e5a6b44291509abba6f ]

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

Cc: stable@kernel.org
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 006eaac791f4d..809fed3f1c3ec 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1697,6 +1697,7 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
 			}
 		}
 	}
+	musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 #else