netdev - [PATCH] can: flexcan: use be32_to_cpup to handle the value of dt entry

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Message-Id: <1340789236-28266-2-git-send-email-mkl@pengutronix.de>
Date:	Wed, 27 Jun 2012 11:27:16 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, linux-can@...r.kernel.org,
	Hui Wang <jason77.wang@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH] can: flexcan: use be32_to_cpup to handle the value of dt entry

From: Hui Wang <jason77.wang@...il.com>

The freescale arm i.MX series platform can support this driver, and
usually the arm cpu works in the little endian mode by default, while
device tree entry value is stored in big endian format, we should use
be32_to_cpup() to handle them, after modification, it can work well
both on the le cpu and be cpu.

Cc: stable <stable@...r.kernel.org> # v3.2+
Cc: Shawn Guo <shawn.guo@...aro.org>
Signed-off-by: Hui Wang <jason77.wang@...il.com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/flexcan.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 38c0690..81d4741 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -939,12 +939,12 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
 		return PTR_ERR(pinctrl);
 
 	if (pdev->dev.of_node) {
-		const u32 *clock_freq_p;
+		const __be32 *clock_freq_p;
 
 		clock_freq_p = of_get_property(pdev->dev.of_node,
 						"clock-frequency", NULL);
 		if (clock_freq_p)
-			clock_freq = *clock_freq_p;
+			clock_freq = be32_to_cpup(clock_freq_p);
 	}
 
 	if (!clock_freq) {
-- 
1.7.10

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