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can: flexcan: use of_property_read_u32 to get DT entry value

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of_property_read_u32() can auto handle endian problems, use this
function can make code clean and simple.

No need to check return value here since the following got value
check will handle this.

Cc: linux-can@vger.kernel.org
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Hui Wang 2012-06-28 16:21:34 +08:00 committed by Marc Kleine-Budde
parent 8b7b736fbf
commit afc016d836
1 changed files with 3 additions and 8 deletions
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11
drivers/net/can/flexcan.c
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@ -938,14 +938,9 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
if (IS_ERR(pinctrl))
return PTR_ERR(pinctrl);
if (pdev->dev.of_node) {
const __be32 *clock_freq_p;
clock_freq_p = of_get_property(pdev->dev.of_node,
"clock-frequency", NULL);
if (clock_freq_p)
clock_freq = be32_to_cpup(clock_freq_p);
}
if (pdev->dev.of_node)
of_property_read_u32(pdev->dev.of_node,
"clock-frequency", &clock_freq);
if (!clock_freq) {
clk = clk_get(&pdev->dev, NULL);