ks8851: suspend resume support
Add suspend/resume support using default open/stop interface methods to do hardware dependant operations. On suspend, same low power state (soft power mode) will be kept, the following blocks will be disabled: - Internal PLL Clock - Tx/Rx PHY - MAC - SPI Interface Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1545,6 +1545,37 @@ static int ks8851_read_selftest(struct ks8851_net *ks)
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/* driver bus management functions */
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/* driver bus management functions */
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#ifdef CONFIG_PM
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static int ks8851_suspend(struct spi_device *spi, pm_message_t state)
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{
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struct ks8851_net *ks = dev_get_drvdata(&spi->dev);
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struct net_device *dev = ks->netdev;
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if (netif_running(dev)) {
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netif_device_detach(dev);
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ks8851_net_stop(dev);
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}
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return 0;
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}
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static int ks8851_resume(struct spi_device *spi)
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{
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struct ks8851_net *ks = dev_get_drvdata(&spi->dev);
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struct net_device *dev = ks->netdev;
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if (netif_running(dev)) {
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ks8851_net_open(dev);
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netif_device_attach(dev);
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}
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return 0;
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}
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#else
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#define ks8851_suspend NULL
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#define ks8851_resume NULL
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#endif
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static int __devinit ks8851_probe(struct spi_device *spi)
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static int __devinit ks8851_probe(struct spi_device *spi)
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{
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{
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struct net_device *ndev;
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struct net_device *ndev;
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@ -1679,6 +1710,8 @@ static struct spi_driver ks8851_driver = {
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},
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},
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.probe = ks8851_probe,
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.probe = ks8851_probe,
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.remove = __devexit_p(ks8851_remove),
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.remove = __devexit_p(ks8851_remove),
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.suspend = ks8851_suspend,
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.resume = ks8851_resume,
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};
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};
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static int __init ks8851_init(void)
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static int __init ks8851_init(void)
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