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Commit c1f598fd authored by Haavard Skinnemoen's avatar Haavard Skinnemoen Committed by Haavard Skinnemoen
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macb: Basic suspend/resume support 



This implements suspend and resume callbacks for the macb driver. We may
have to do some more to gracefully shut the MAC down, but this at least
prevents the macb from waking the system when hooked up to a busy
network.

Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Patrice Vilchez <patrice.vilchez@rfo.atmel.com>
Cc: Nicolas FERRE <nicolas.ferre@rfo.atmel.com>
parent e1c609ef

drivers/net/macb.c

+37 −0
Original line number Diff line number Diff line
@@ -1277,8 +1277,45 @@ static int __exit macb_remove(struct platform_device *pdev) 
	return 0;

}



#ifdef CONFIG_PM

static int macb_suspend(struct platform_device *pdev, pm_message_t state)

{

	struct net_device *netdev = platform_get_drvdata(pdev);

	struct macb *bp = netdev_priv(netdev);



	netif_device_detach(netdev);



#ifndef CONFIG_ARCH_AT91

	clk_disable(bp->hclk);

#endif

	clk_disable(bp->pclk);



	return 0;

}



static int macb_resume(struct platform_device *pdev)

{

	struct net_device *netdev = platform_get_drvdata(pdev);

	struct macb *bp = netdev_priv(netdev);



	clk_enable(bp->pclk);

#ifndef CONFIG_ARCH_AT91

	clk_enable(bp->hclk);

#endif



	netif_device_attach(netdev);



	return 0;

}

#else

#define macb_suspend	NULL

#define macb_resume	NULL

#endif



static struct platform_driver macb_driver = {

	.remove		= __exit_p(macb_remove),

	.suspend	= macb_suspend,

	.resume		= macb_resume,

	.driver		= {

		.name		= "macb",

		.owner	= THIS_MODULE,