net: rework fsl_pq_mdio driver to use of_mdio infrastructure

This patch simplifies the driver by making use of more common code.

Tested on Freescale MPC8349emitxgp eval board

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 48 deletions

diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index aa1eb88c21f..b01daa1e3ad 100644
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c
@@ -34,6 +34,7 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/of.h>
+#include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 
 #include <asm/io.h>
@@ -154,44 +155,6 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus)
         return 0;
 }
 
-/* Allocate an array which provides irq #s for each PHY on the given bus */
-static int *create_irq_map(struct device_node *np)
-{
-        int *irqs;
-        int i;
-        struct device_node *child = NULL;
-
-        irqs = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
-
-        if (!irqs)
-                return NULL;
-
-        for (i = 0; i < PHY_MAX_ADDR; i++)
-                irqs[i] = PHY_POLL;
-
-        while ((child = of_get_next_child(np, child)) != NULL) {
-                int irq = irq_of_parse_and_map(child, 0);
-                const u32 *id;
-
-                if (irq == NO_IRQ)
-                        continue;
-
-                id = of_get_property(child, "reg", NULL);
-
-                if (!id)
-                        continue;
-
-                if (*id < PHY_MAX_ADDR && *id >= 0)
-                        irqs[*id] = irq;
-                else
-                        printk(KERN_WARNING "%s: "
-                                        "%d is not a valid PHY address\n",
-                                        np->full_name, *id);
-        }
-
-        return irqs;
-}
-
 void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
 {
         const u32 *addr;
@@ -315,7 +278,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
 
         new_bus->priv = (void __force *)regs;
 
-        new_bus->irq = create_irq_map(np);
+        new_bus->irq = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
 
         if (NULL == new_bus->irq) {
                 err = -ENOMEM;
@@ -384,15 +347,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
 
         out_be32(tbipa, tbiaddr);
 
-        /*
-         * The TBIPHY-only buses will find PHYs at every address,
-         * so we mask them all but the TBI
-         */
-        if (of_device_is_compatible(np, "fsl,gianfar-tbi"))
-                new_bus->phy_mask = ~(1 << tbiaddr);
-
-        err = mdiobus_register(new_bus);
-
+        err = of_mdiobus_register(new_bus, np);
         if (err) {
                 printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
                                 new_bus->name);