[RFC: PATCH 4/5] can: sja1000_platform: factor out initialization from platform data

[Marc Kleine-Budde <mkl@pengutronix.de>]

This patch moves the initialization from the "sp_probe()" function into a
seperate function. This prepares the driver for the device tree bindings coming
in the next patch.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/sja1000/sja1000_platform.c |   16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c
index b0ce5ef..6260209 100644
--- a/drivers/net/can/sja1000/sja1000_platform.c
+++ b/drivers/net/can/sja1000/sja1000_platform.c
@@ -64,6 +64,14 @@ static void sp_write_reg32(const struct sja1000_priv *priv, int reg, u8 val)
 	iowrite8(val, priv->reg_base + reg * 4);
 }
 
+static void __devinit sp_probe_pdata(struct sja1000_priv *priv, const struct sja1000_platform_data *pdata)
+{
+	/* The CAN clock frequency is half the oscillator clock frequency */
+	priv->can.clock.freq = pdata->osc_freq / 2;
+	priv->ocr = pdata->ocr;
+	priv->cdr = pdata->cdr;
+}
+
 static int __devinit sp_probe(struct platform_device *pdev)
 {
 	int err;
@@ -71,7 +79,7 @@ static int __devinit sp_probe(struct platform_device *pdev)
 	struct net_device *dev;
 	struct sja1000_priv *priv;
 	struct resource *res_mem, *res_irq;
-	struct sja1000_platform_data *pdata;
+	const struct sja1000_platform_data *pdata;
 
 	pdata = pdev->dev.platform_data;
 	if (!pdata) {
@@ -105,10 +113,8 @@ static int __devinit sp_probe(struct platform_device *pdev)
 	if (res_irq->flags & IORESOURCE_IRQ_SHAREABLE)
 		priv->irq_flags |= IRQF_SHARED;
 	priv->reg_base = addr;
-	/* The CAN clock frequency is half the oscillator clock frequency */
-	priv->can.clock.freq = pdata->osc_freq / 2;
-	priv->ocr = pdata->ocr;
-	priv->cdr = pdata->cdr;
+
+	sp_probe_pdata(priv, pdata);
 
 	switch (res_mem->flags & IORESOURCE_MEM_TYPE_MASK) {
 	case IORESOURCE_MEM_32BIT:
-- 
1.7.10