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: firefly_0821_release~7541^2~3111
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0f231ea4d4505adfcbe949e6716eb0d02e2c14a5;p=firefly-linux-kernel-4.4.55.git

usb: musb: restore INDEX register in resume path

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@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index c71b0372786e..dce7182e1dfe 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2329,6 +2329,7 @@ static void musb_restore_context(struct musb *musb)
 				musb->context.index_regs[i].rxhubport);
 		}
 	}
+	musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 static int musb_suspend(struct device *dev)