From: Felipe Balbi <felipe.balbi@linux.intel.com>
Date: Fri, 13 May 2016 07:11:59 +0000 (+0300)
Subject: UPSTREAM: usb: dwc3: gadget: remove udelay(1) when sending ep cmds
X-Git-Tag: firefly_0821_release~1834
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dd3e05e0359bac8457538181b9dc2a6330ec0593;p=firefly-linux-kernel-4.4.55.git

UPSTREAM: usb: dwc3: gadget: remove udelay(1) when sending ep cmds

When we send an endpoint command, we want that to
complete as soon as possible, so let's remove the
unnecessary udelay(1) call.

Change-Id: I601a8a4c80aa5abd6ccf68f2169f38a08ef3bc5f
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
(cherry picked from commit b43bba96b9036e42b2c2c71ee15e1f77b0b37aec)
---

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 3d50b0b55adf..ad130fbd30f1 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -334,8 +334,6 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
 			ret = -ETIMEDOUT;
 			break;
 		}
-
-		udelay(1);
 	} while (1);
 
 	if (unlikely(susphy)) {