diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/stmmac/stmmac.h | 1 | ||||
| -rw-r--r-- | drivers/net/stmmac/stmmac_main.c | 124 |
2 files changed, 71 insertions, 54 deletions
diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h index 8ae76501eb74..eb258e2319e1 100644 --- a/drivers/net/stmmac/stmmac.h +++ b/drivers/net/stmmac/stmmac.h @@ -77,7 +77,6 @@ struct stmmac_priv { spinlock_t lock; int wolopts; int wolenabled; - int shutdown; #ifdef CONFIG_STMMAC_TIMER struct stmmac_timer *tm; #endif diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index b806cd3515b4..f1dbc182c8df 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -844,8 +844,6 @@ static int stmmac_open(struct net_device *dev) if (priv->plat->tx_coe) pr_info("\tTX Checksum insertion supported\n"); - priv->shutdown = 0; - /* Initialise the MMC (if present) to disable all interrupts. */ writel(0xffffffff, priv->ioaddr + MMC_HIGH_INTR_MASK); writel(0xffffffff, priv->ioaddr + MMC_LOW_INTR_MASK); @@ -1799,61 +1797,53 @@ static int stmmac_dvr_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int stmmac_suspend(struct platform_device *pdev, pm_message_t state) +static int stmmac_suspend(struct device *dev) { - struct net_device *dev = platform_get_drvdata(pdev); - struct stmmac_priv *priv = netdev_priv(dev); + struct net_device *ndev = dev_get_drvdata(dev); + struct stmmac_priv *priv = netdev_priv(ndev); int dis_ic = 0; - if (!dev || !netif_running(dev)) + if (!ndev || !netif_running(ndev)) return 0; spin_lock(&priv->lock); - if (state.event == PM_EVENT_SUSPEND) { - netif_device_detach(dev); - netif_stop_queue(dev); - if (priv->phydev) - phy_stop(priv->phydev); + netif_device_detach(ndev); + netif_stop_queue(ndev); + if (priv->phydev) + phy_stop(priv->phydev); #ifdef CONFIG_STMMAC_TIMER - priv->tm->timer_stop(); - if (likely(priv->tm->enable)) - dis_ic = 1; + priv->tm->timer_stop(); + if (likely(priv->tm->enable)) + dis_ic = 1; #endif - napi_disable(&priv->napi); - - /* Stop TX/RX DMA */ - priv->hw->dma->stop_tx(priv->ioaddr); - priv->hw->dma->stop_rx(priv->ioaddr); - /* Clear the Rx/Tx descriptors */ - priv->hw->desc->init_rx_desc(priv->dma_rx, priv->dma_rx_size, - dis_ic); - priv->hw->desc->init_tx_desc(priv->dma_tx, priv->dma_tx_size); - - /* Enable Power down mode by programming the PMT regs */ - if (device_can_wakeup(priv->device)) - priv->hw->mac->pmt(priv->ioaddr, priv->wolopts); - else - stmmac_disable_mac(priv->ioaddr); - } else { - priv->shutdown = 1; - /* Although this can appear slightly redundant it actually - * makes fast the standby operation and guarantees the driver - * working if hibernation is on media. */ - stmmac_release(dev); - } + napi_disable(&priv->napi); + + /* Stop TX/RX DMA */ + priv->hw->dma->stop_tx(priv->ioaddr); + priv->hw->dma->stop_rx(priv->ioaddr); + /* Clear the Rx/Tx descriptors */ + priv->hw->desc->init_rx_desc(priv->dma_rx, priv->dma_rx_size, + dis_ic); + priv->hw->desc->init_tx_desc(priv->dma_tx, priv->dma_tx_size); + + /* Enable Power down mode by programming the PMT regs */ + if (device_may_wakeup(priv->device)) + priv->hw->mac->pmt(priv->ioaddr, priv->wolopts); + else + stmmac_disable_mac(priv->ioaddr); spin_unlock(&priv->lock); return 0; } -static int stmmac_resume(struct platform_device *pdev) +static int stmmac_resume(struct device *dev) { - struct net_device *dev = platform_get_drvdata(pdev); - struct stmmac_priv *priv = netdev_priv(dev); + struct net_device *ndev = dev_get_drvdata(dev); + struct stmmac_priv *priv = netdev_priv(ndev); - if (!netif_running(dev)) + if (!netif_running(ndev)) return 0; if (priv->shutdown) { @@ -1870,10 +1860,10 @@ static int stmmac_resume(struct platform_device *pdev) * is received. Anyway, it's better to manually clear * this bit because it can generate problems while resuming * from another devices (e.g. serial console). */ - if (device_can_wakeup(priv->device)) + if (device_may_wakeup(priv->device)) priv->hw->mac->pmt(priv->ioaddr, 0); - netif_device_attach(dev); + netif_device_attach(ndev); /* Enable the MAC and DMA */ stmmac_enable_mac(priv->ioaddr); @@ -1881,31 +1871,59 @@ static int stmmac_resume(struct platform_device *pdev) priv->hw->dma->start_rx(priv->ioaddr); #ifdef CONFIG_STMMAC_TIMER - priv->tm->timer_start(tmrate); + if (likely(priv->tm->enable)) + priv->tm->timer_start(tmrate); #endif napi_enable(&priv->napi); if (priv->phydev) phy_start(priv->phydev); - netif_start_queue(dev); + netif_start_queue(ndev); spin_unlock(&priv->lock); return 0; } -#endif -static struct platform_driver stmmac_driver = { - .driver = { - .name = STMMAC_RESOURCE_NAME, - }, - .probe = stmmac_dvr_probe, - .remove = stmmac_dvr_remove, -#ifdef CONFIG_PM +static int stmmac_freeze(struct device *dev) +{ + struct net_device *ndev = dev_get_drvdata(dev); + + if (!ndev || !netif_running(ndev)) + return 0; + + return stmmac_release(ndev); +} + +static int stmmac_restore(struct device *dev) +{ + struct net_device *ndev = dev_get_drvdata(dev); + + if (!ndev || !netif_running(ndev)) + return 0; + + return stmmac_open(ndev); +} + +static const struct dev_pm_ops stmmac_pm_ops = { .suspend = stmmac_suspend, .resume = stmmac_resume, -#endif + .freeze = stmmac_freeze, + .thaw = stmmac_restore, + .restore = stmmac_restore, +}; +#else +static const struct dev_pm_ops stmmac_pm_ops; +#endif /* CONFIG_PM */ +static struct platform_driver stmmac_driver = { + .probe = stmmac_dvr_probe, + .remove = stmmac_dvr_remove, + .driver = { + .name = STMMAC_RESOURCE_NAME, + .owner = THIS_MODULE, + .pm = &stmmac_pm_ops, + }, }; /** |