From f5090044763fd954a002a6ef466fcbc21033518f Mon Sep 17 00:00:00 2001
From: Gregory Herrero <gregory.herrero@intel.com>
Date: Fri, 9 Jan 2015 13:38:47 +0100
Subject: [PATCH] usb: dwc2: gadget: don't erase gahbcfg register when enabling
 dma

Do a read-modify-write instead of only setting DMAEn bit.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
Reading git-format-patch failed