net/mpc52xx_phy: Various code cleanups

- don't free bus->irq (obsoleted by ca816d98170942371535b3e862813b0aba9b7d90)
- don't dispose irqs (should be done in of_mdiobus_register())
- use fec-pointer consistently in transfer()
- use resource_size()
- cosmetic fixes

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c
index 006f64d..dbaf72c 100644 (file)
--- a/drivers/net/fec_mpc52xx_phy.c
+++ b/drivers/net/fec_mpc52xx_phy.c
@@ -29,15 +29,14 @@ static int mpc52xx_fec_mdio_transfer(struct mii_bus *bus, int phy_id,
                int reg, u32 value)
 {
        struct mpc52xx_fec_mdio_priv *priv = bus->priv;
-       struct mpc52xx_fec __iomem *fec;
+       struct mpc52xx_fec __iomem *fec = priv->regs;
        int tries = 3;
 
        value |= (phy_id << FEC_MII_DATA_PA_SHIFT) & FEC_MII_DATA_PA_MSK;
        value |= (reg << FEC_MII_DATA_RA_SHIFT) & FEC_MII_DATA_RA_MSK;
 
-       fec = priv->regs;
        out_be32(&fec->ievent, FEC_IEVENT_MII);
-       out_be32(&priv->regs->mii_data, value);
+       out_be32(&fec->mii_data, value);
 
        /* wait for it to finish, this takes about 23 us on lite5200b */
        while (!(in_be32(&fec->ievent) & FEC_IEVENT_MII) && --tries)
@@ -47,7 +46,7 @@ static int mpc52xx_fec_mdio_transfer(struct mii_bus *bus, int phy_id,
                return -ETIMEDOUT;
 
        return value & FEC_MII_DATA_OP_RD ?
-               in_be32(&priv->regs->mii_data) & FEC_MII_DATA_DATAMSK : 0;
+               in_be32(&fec->mii_data) & FEC_MII_DATA_DATAMSK : 0;
 }
 
 static int mpc52xx_fec_mdio_read(struct mii_bus *bus, int phy_id, int reg)
@@ -69,9 +68,8 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of,
        struct device_node *np = of->dev.of_node;
        struct mii_bus *bus;
        struct mpc52xx_fec_mdio_priv *priv;
-       struct resource res = {};
+       struct resource res;
        int err;
-       int i;
 
        bus = mdiobus_alloc();
        if (bus == NULL)
@@ -93,7 +91,7 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of,
        err = of_address_to_resource(np, 0, &res);
        if (err)
                goto out_free;
-       priv->regs = ioremap(res.start, res.end - res.start + 1);
+       priv->regs = ioremap(res.start, resource_size(&res));
        if (priv->regs == NULL) {
                err = -ENOMEM;
                goto out_free;
@@ -118,10 +116,6 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of,
  out_unmap:
        iounmap(priv->regs);
  out_free:
-       for (i=0; i<PHY_MAX_ADDR; i++)
-               if (bus->irq[i] != PHY_POLL)
-                       irq_dispose_mapping(bus->irq[i]);
-       kfree(bus->irq);
        kfree(priv);
        mdiobus_free(bus);
 
@@ -133,23 +127,16 @@ static int mpc52xx_fec_mdio_remove(struct of_device *of)
        struct device *dev = &of->dev;
        struct mii_bus *bus = dev_get_drvdata(dev);
        struct mpc52xx_fec_mdio_priv *priv = bus->priv;
-       int i;
 
        mdiobus_unregister(bus);
        dev_set_drvdata(dev, NULL);
-
        iounmap(priv->regs);
-       for (i=0; i<PHY_MAX_ADDR; i++)
-               if (bus->irq[i] != PHY_POLL)
-                       irq_dispose_mapping(bus->irq[i]);
        kfree(priv);
-       kfree(bus->irq);
        mdiobus_free(bus);
 
        return 0;
 }
 
-
 static struct of_device_id mpc52xx_fec_mdio_match[] = {
        { .compatible = "fsl,mpc5200b-mdio", },
        { .compatible = "fsl,mpc5200-mdio", },
@@ -171,5 +158,4 @@ struct of_platform_driver mpc52xx_fec_mdio_driver = {
 /* let fec driver call it, since this has to be registered before it */
 EXPORT_SYMBOL_GPL(mpc52xx_fec_mdio_driver);
 
-
 MODULE_LICENSE("Dual BSD/GPL");