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Commit 1d5439b9 authored by Arce, Abraham's avatar Arce, Abraham Committed by David S. Miller
Browse files

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: default avatarAbraham Arce <x0066660@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d0eaeec8

drivers/net/ks8851.c

+33 −0
Original line number Diff line number Diff line
@@ -1545,6 +1545,37 @@ static int ks8851_read_selftest(struct ks8851_net *ks) 


/* driver bus management functions */



#ifdef CONFIG_PM

static int ks8851_suspend(struct spi_device *spi, pm_message_t state)

{

	struct ks8851_net *ks = dev_get_drvdata(&spi->dev);

	struct net_device *dev = ks->netdev;



	if (netif_running(dev)) {

		netif_device_detach(dev);

		ks8851_net_stop(dev);

	}



	return 0;

}



static int ks8851_resume(struct spi_device *spi)

{

	struct ks8851_net *ks = dev_get_drvdata(&spi->dev);

	struct net_device *dev = ks->netdev;



	if (netif_running(dev)) {

		ks8851_net_open(dev);

		netif_device_attach(dev);

	}



	return 0;

}

#else

#define ks8851_suspend NULL

#define ks8851_resume NULL

#endif



static int __devinit ks8851_probe(struct spi_device *spi)

{

	struct net_device *ndev;
@@ -1679,6 +1710,8 @@ static struct spi_driver ks8851_driver = { 
	},

	.probe = ks8851_probe,

	.remove = __devexit_p(ks8851_remove),

	.suspend = ks8851_suspend,

	.resume = ks8851_resume,

};



static int __init ks8851_init(void)