at91_ether: request/free GPIO for PHY interrupt

When the at91_ether driver is using a GPIO for its PHY interrupt,
be sure to request (and later, if needed, free) that GPIO.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c
index 0fa5346..6f431a8 100644 (file)
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -1080,7 +1080,8 @@ static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_add
                init_timer(&lp->check_timer);
                lp->check_timer.data = (unsigned long)dev;
                lp->check_timer.function = at91ether_check_link;
-       }
+       } else if (lp->board_data.phy_irq_pin >= 32)
+               gpio_request(lp->board_data.phy_irq_pin, "ethernet_phy");
 
        /* Display ethernet banner */
        printk(KERN_INFO "%s: AT91 ethernet at 0x%08x int=%d %s%s (%s)\n",
@@ -1167,6 +1168,9 @@ static int __devexit at91ether_remove(struct platform_device *pdev)
        struct net_device *dev = platform_get_drvdata(pdev);
        struct at91_private *lp = netdev_priv(dev);
 
+       if (lp->board_data.phy_irq_pin >= 32)
+               gpio_free(lp->board_data.phy_irq_pin);
+
        unregister_netdev(dev);
        free_irq(dev->irq, dev);
        dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);