linux-kernel - [PATCH] xilinx_hwicap: reset XHI_MAX

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Message-ID: <4F8FB8AD.3060102@iogearbox.net>
Date:	Thu, 19 Apr 2012 09:03:09 +0200
From:	Daniel Borkmann <danborkmann@...earbox.net>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Michal Simek <monstr@...str.eu>, Arnd Bergmann <arnd@...db.de>,
	Ariane Keller <ariane.keller@....ee.ethz.ch>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] xilinx_hwicap: reset XHI_MAX_RETRIES

Reset the XHI_MAX_RETRIES value. This allows the hardware enough time to
write configuration frames during partial reconfiguration. In case of 10
the driver returns an error, although it should just have polled the
register longer.

Tested on an ML605 board. The patch is against the latest linus-tree.

Signed-off-by: Ariane Keller <ariane.keller@....ee.ethz.ch>
Signed-off-by: Daniel Borkmann <daniel.borkmann@....ee.ethz.ch>
---
 drivers/char/xilinx_hwicap/xilinx_hwicap.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
index 8cca119..d31ee23 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h
@@ -86,7 +86,7 @@ struct hwicap_driver_config {
 };
 
 /* Number of times to poll the done regsiter */
-#define XHI_MAX_RETRIES     10
+#define XHI_MAX_RETRIES     5000
 
 /************ Constant Definitions *************/
 
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