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path: root/drivers/net/ethernet/micrel/ks8851.c
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Diffstat (limited to 'drivers/net/ethernet/micrel/ks8851.c')
-rw-r--r--drivers/net/ethernet/micrel/ks8851.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index c722aa607d07..5e313e9a252f 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -618,10 +618,8 @@ static void ks8851_irq_work(struct work_struct *work)
netif_dbg(ks, intr, ks->netdev,
"%s: status 0x%04x\n", __func__, status);
- if (status & IRQ_LCI) {
- /* should do something about checking link status */
+ if (status & IRQ_LCI)
handled |= IRQ_LCI;
- }
if (status & IRQ_LDI) {
u16 pmecr = ks8851_rdreg16(ks, KS_PMECR);
@@ -684,6 +682,9 @@ static void ks8851_irq_work(struct work_struct *work)
mutex_unlock(&ks->lock);
+ if (status & IRQ_LCI)
+ mii_check_link(&ks->mii);
+
if (status & IRQ_TXI)
netif_wake_queue(ks->netdev);
@@ -889,16 +890,17 @@ static int ks8851_net_stop(struct net_device *dev)
netif_stop_queue(dev);
mutex_lock(&ks->lock);
+ /* turn off the IRQs and ack any outstanding */
+ ks8851_wrreg16(ks, KS_IER, 0x0000);
+ ks8851_wrreg16(ks, KS_ISR, 0xffff);
+ mutex_unlock(&ks->lock);
/* stop any outstanding work */
flush_work(&ks->irq_work);
flush_work(&ks->tx_work);
flush_work(&ks->rxctrl_work);
- /* turn off the IRQs and ack any outstanding */
- ks8851_wrreg16(ks, KS_IER, 0x0000);
- ks8851_wrreg16(ks, KS_ISR, 0xffff);
-
+ mutex_lock(&ks->lock);
/* shutdown RX process */
ks8851_wrreg16(ks, KS_RXCR1, 0x0000);
@@ -907,6 +909,7 @@ static int ks8851_net_stop(struct net_device *dev)
/* set powermode to soft power down to save power */
ks8851_set_powermode(ks, PMECR_PM_SOFTDOWN);
+ mutex_unlock(&ks->lock);
/* ensure any queued tx buffers are dumped */
while (!skb_queue_empty(&ks->txq)) {
@@ -918,7 +921,6 @@ static int ks8851_net_stop(struct net_device *dev)
dev_kfree_skb(txb);
}
- mutex_unlock(&ks->lock);
return 0;
}
@@ -1418,6 +1420,7 @@ static int __devinit ks8851_probe(struct spi_device *spi)
struct net_device *ndev;
struct ks8851_net *ks;
int ret;
+ unsigned cider;
ndev = alloc_etherdev(sizeof(struct ks8851_net));
if (!ndev)
@@ -1484,8 +1487,8 @@ static int __devinit ks8851_probe(struct spi_device *spi)
ks8851_soft_reset(ks, GRR_GSR);
/* simple check for a valid chip being connected to the bus */
-
- if ((ks8851_rdreg16(ks, KS_CIDER) & ~CIDER_REV_MASK) != CIDER_ID) {
+ cider = ks8851_rdreg16(ks, KS_CIDER);
+ if ((cider & ~CIDER_REV_MASK) != CIDER_ID) {
dev_err(&spi->dev, "failed to read device ID\n");
ret = -ENODEV;
goto err_id;
@@ -1516,15 +1519,14 @@ static int __devinit ks8851_probe(struct spi_device *spi)
}
netdev_info(ndev, "revision %d, MAC %pM, IRQ %d, %s EEPROM\n",
- CIDER_REV_GET(ks8851_rdreg16(ks, KS_CIDER)),
- ndev->dev_addr, ndev->irq,
+ CIDER_REV_GET(cider), ndev->dev_addr, ndev->irq,
ks->rc_ccr & CCR_EEPROM ? "has" : "no");
return 0;
err_netdev:
- free_irq(ndev->irq, ndev);
+ free_irq(ndev->irq, ks);
err_id:
err_irq: