From: Chris Brandt <chris.brandt@renesas.com>
Date: Thu, 27 Apr 2017 19:12:49 +0000 (-0700)
Subject: usb: r8a66597-hcd: decrease timeout
X-Git-Tag: v4.4.74~14
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab29b21a47ae9a057f66b58b06353ec459dcfb3a;p=profile%2Fcommon%2Fplatform%2Fkernel%2Flinux-artik7.git

usb: r8a66597-hcd: decrease timeout

commit dd14a3e9b92ac6f0918054f9e3477438760a4fa6 upstream.

The timeout for BULK packets was 300ms which is a long time if other
endpoints or devices are waiting for their turn. Changing it to 50ms
greatly increased the overall performance for multi-endpoint devices.

Fixes: 5d3043586db4 ("usb: r8a66597-hcd: host controller driver for R8A6659")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 80fee15..a11c2c8 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1269,7 +1269,7 @@ static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}