Patch "usb: r8a66597-hcd: decrease timeout" has been added to the 4.4-stable tree

Patch "usb: r8a66597-hcd: decrease timeout" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: r8a66597-hcd: decrease timeout

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-r8a66597-hcd-decrease-timeout.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From dd14a3e9b92ac6f0918054f9e3477438760a4fa6 Mon Sep 17 00:00:00 2001
From: Chris Brandt <chris.brandt@renesas.com>
Date: Thu, 27 Apr 2017 12:12:49 -0700
Subject: usb: r8a66597-hcd: decrease timeout

From: Chris Brandt <chris.brandt@renesas.com>

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>

---
 drivers/usb/host/r8a66597-hcd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}
 


Patches currently in stable-queue which might be from chris.brandt@renesas.com are

queue-4.4/usb-r8a66597-hcd-decrease-timeout.patch
queue-4.4/usb-r8a66597-hcd-select-a-different-endpoint-on-timeout.patch