diff options
| author | Arce, Abraham <x0066660@ti.com> | 2010-10-28 18:57:20 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-08 13:50:06 -0800 |
| commit | 1d5439b9a29b1386d44a617cbaf2f7acde1d697c (patch) | |
| tree | d28e19a01ead8d7477f6ced67ceb4551a07310e5 /drivers/net/ks8851.c | |
| parent | d0eaeec8e8dfdc31815941054802dcccd7c3fe1d (diff) | |
| download | talos-obmc-linux-1d5439b9a29b1386d44a617cbaf2f7acde1d697c.tar.gz talos-obmc-linux-1d5439b9a29b1386d44a617cbaf2f7acde1d697c.zip | |
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>
Diffstat (limited to 'drivers/net/ks8851.c')
| -rw-r--r-- | drivers/net/ks8851.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c index 51919fcd50c2..0fa4a9887ba2 100644 --- a/drivers/net/ks8851.c +++ b/drivers/net/ks8851.c @@ -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) |
