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sh_eth: Simplify MDIO bus initialization and release 

The network device passed to the sh_mdio_init and sh_mdio_release
functions is only used to access the sh_eth_private instance. Pass it
directly to those functions.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Laurent Pinchart 2014-03-20 15:00:33 +01:00 committed by David S. Miller
parent a5bd606089
commit bd920ff553
1 changed files with 11 additions and 19 deletions
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30
drivers/net/ethernet/renesas/sh_eth.c
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@ -2583,29 +2583,24 @@ static void sh_eth_tsu_init(struct sh_eth_private *mdp)
}
/* MDIO bus release function */
static int sh_mdio_release(struct net_device *ndev)
static int sh_mdio_release(struct sh_eth_private *mdp)
{
struct mii_bus *bus = dev_get_drvdata(&ndev->dev);
/* unregister mdio bus */
mdiobus_unregister(bus);
/* remove mdio bus info from net_device */
dev_set_drvdata(&ndev->dev, NULL);
mdiobus_unregister(mdp->mii_bus);
/* free bitbang info */
free_mdio_bitbang(bus);
free_mdio_bitbang(mdp->mii_bus);
return 0;
}
/* MDIO bus init function */
static int sh_mdio_init(struct net_device *ndev, int id,
static int sh_mdio_init(struct sh_eth_private *mdp,
struct sh_eth_plat_data *pd)
{
int ret, i;
struct bb_info *bitbang;
struct sh_eth_private *mdp = netdev_priv(ndev);
struct platform_device *pdev = mdp->pdev;
struct device *dev = &mdp->pdev->dev;
/* create bit control struct for PHY */
@ -2635,7 +2630,7 @@ static int sh_mdio_init(struct net_device *ndev, int id,
mdp->mii_bus->name = "sh_mii";
mdp->mii_bus->parent = dev;
snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
mdp->pdev->name, id);
pdev->name, pdev->id);
/* PHY IRQ */
mdp->mii_bus->irq = devm_kzalloc(dev, sizeof(int) * PHY_MAX_ADDR,
@ -2645,10 +2640,9 @@ static int sh_mdio_init(struct net_device *ndev, int id,
goto out_free_bus;
}
/* register mdio bus */
if (ndev->dev.parent->of_node) {
ret = of_mdiobus_register(mdp->mii_bus,
ndev->dev.parent->of_node);
/* register MDIO bus */
if (dev->of_node) {
ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
} else {
for (i = 0; i < PHY_MAX_ADDR; i++)
mdp->mii_bus->irq[i] = PHY_POLL;
@ -2661,8 +2655,6 @@ static int sh_mdio_init(struct net_device *ndev, int id,
if (ret)
goto out_free_bus;
dev_set_drvdata(&ndev->dev, mdp->mii_bus);
return 0;
out_free_bus:
@ -2907,7 +2899,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
goto out_napi_del;
/* mdio bus init */
ret = sh_mdio_init(ndev, pdev->id, pd);
ret = sh_mdio_init(mdp, pd);
if (ret) {
dev_err(&ndev->dev, "failed to initialise MDIO\n");
goto out_unregister;
@ -2941,7 +2933,7 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
struct net_device *ndev = platform_get_drvdata(pdev);
struct sh_eth_private *mdp = netdev_priv(ndev);
sh_mdio_release(ndev);
sh_mdio_release(mdp);
unregister_netdev(ndev);
netif_napi_del(&mdp->napi);
pm_runtime_disable(&pdev->dev);