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[PATCH 4.11 54/78] usb: r8a66597-hcd: decrease timeout

Started byGreg Kroah-Hartman <gregkh@linuxfoundation.org>
First post2017-06-19 17:20 +0200
Last post2017-06-19 17:20 +0200
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  [PATCH 4.11 54/78] usb: r8a66597-hcd: decrease timeout Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-19 17:20 +0200

#1669198 — [PATCH 4.11 54/78] usb: r8a66597-hcd: decrease timeout

FromGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Date2017-06-19 17:20 +0200
Subject[PATCH 4.11 54/78] usb: r8a66597-hcd: decrease timeout
Message-ID<tU6D7-4lE-1@gated-at.bofh.it>
4.11-stable review patch.  If anyone has any objections, please let me know.

------------------

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;
 		}
 

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