[PATCH] AT91RM9200 Ethernet #3: Cleanup
Moved global ether_clk variable into controller data structure.
Patch from David Brownell.
Davicom 9161 PHY was being incorrectly displayed as "9196".
Patch from Brian Stafford.
clk_get() doesn't return NULL on error, so the return value needs to be
tested with IS_ERR().
Whitespace cleanup.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c
index cc77366..d081241 100644
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -43,7 +43,6 @@
#define DRV_VERSION "1.0"
static struct net_device *at91_dev;
-static struct clk *ether_clk;
static struct timer_list check_timer;
#define LINK_POLL_INTERVAL (HZ)
@@ -519,7 +518,7 @@
hash_index |= (bitval << j);
}
- return hash_index;
+ return hash_index;
}
/*
@@ -575,10 +574,8 @@
at91_emac_write(AT91_EMAC_CFG, cfg);
}
-
/* ......................... ETHTOOL SUPPORT ........................... */
-
static int mdio_read(struct net_device *dev, int phy_id, int location)
{
unsigned int value;
@@ -719,10 +716,10 @@
struct at91_private *lp = (struct at91_private *) dev->priv;
unsigned long ctl;
- if (!is_valid_ether_addr(dev->dev_addr))
- return -EADDRNOTAVAIL;
+ if (!is_valid_ether_addr(dev->dev_addr))
+ return -EADDRNOTAVAIL;
- clk_enable(ether_clk); /* Re-enable Peripheral clock */
+ clk_enable(lp->ether_clk); /* Re-enable Peripheral clock */
/* Clear internal statistics */
ctl = at91_emac_read(AT91_EMAC_CTL);
@@ -756,6 +753,7 @@
*/
static int at91ether_close(struct net_device *dev)
{
+ struct at91_private *lp = (struct at91_private *) dev->priv;
unsigned long ctl;
/* Disable Receiver and Transmitter */
@@ -772,7 +770,7 @@
netif_stop_queue(dev);
- clk_disable(ether_clk); /* Disable Peripheral clock */
+ clk_disable(lp->ether_clk); /* Disable Peripheral clock */
return 0;
}
@@ -904,7 +902,7 @@
if (intstatus & AT91_EMAC_RCOM) /* Receive complete */
at91ether_rx(dev);
- if (intstatus & AT91_EMAC_TCOM) { /* Transmit complete */
+ if (intstatus & AT91_EMAC_TCOM) { /* Transmit complete */
/* The TCOM bit is set even if the transmission failed. */
if (intstatus & (AT91_EMAC_TUND | AT91_EMAC_RTRY))
lp->stats.tx_errors += 1;
@@ -933,7 +931,8 @@
/*
* Initialize the ethernet interface
*/
-static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address, struct platform_device *pdev)
+static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address,
+ struct platform_device *pdev, struct clk *ether_clk)
{
struct at91_eth_data *board_data = pdev->dev.platform_data;
struct net_device *dev;
@@ -967,6 +966,7 @@
return -ENOMEM;
}
lp->board_data = *board_data;
+ lp->ether_clk = ether_clk;
platform_set_drvdata(pdev, dev);
spin_lock_init(&lp->lock);
@@ -1050,7 +1050,7 @@
dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
if ((phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID))
- printk(KERN_INFO "%s: Davicom 9196 PHY %s\n", dev->name, (lp->phy_media == PORT_FIBRE) ? "(Fiber)" : "(Copper)");
+ printk(KERN_INFO "%s: Davicom 9161 PHY %s\n", dev->name, (lp->phy_media == PORT_FIBRE) ? "(Fiber)" : "(Copper)");
else if (phy_type == MII_LXT971A_ID)
printk(KERN_INFO "%s: Intel LXT971A PHY\n", dev->name);
else if (phy_type == MII_RTL8201_ID)
@@ -1076,9 +1076,10 @@
int detected = -1;
unsigned long phy_id;
unsigned short phy_address = 0;
+ struct clk *ether_clk;
ether_clk = clk_get(&pdev->dev, "ether_clk");
- if (!ether_clk) {
+ if (IS_ERR(ether_clk)) {
printk(KERN_ERR "at91_ether: no clock defined\n");
return -ENODEV;
}
@@ -1101,7 +1102,7 @@
case MII_DP83847_ID: /* National Semiconductor DP83847: */
case MII_AC101L_ID: /* Altima AC101L: PHY_ID1 = 0x22, PHY_ID2 = 0x5520 */
case MII_KS8721_ID: /* Micrel KS8721: PHY_ID1 = 0x22, PHY_ID2 = 0x1610 */
- detected = at91ether_setup(phy_id, phy_address, pdev);
+ detected = at91ether_setup(phy_id, phy_address, pdev, ether_clk);
break;
}
@@ -1120,7 +1121,7 @@
unregister_netdev(at91_dev);
free_irq(at91_dev->irq, at91_dev);
dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
- clk_put(ether_clk);
+ clk_put(lp->ether_clk);
free_netdev(at91_dev);
at91_dev = NULL;