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TI DaVinci EMAC: Add suspend/resume capability

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Add suspend/resume capability to TI DaVinci EMAC driver.

Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ranjith Lohithakshan
2009-11-04 22:06:20 -08:00
committed by David S. Miller
parent 9f9354b92d
commit 8d044fe6aa
1 changed files with 27 additions and 3 deletions
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30
drivers/net/davinci_emac.c
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@@ -2806,11 +2806,33 @@ static int __devexit davinci_emac_remove(struct platform_device *pdev)
return 0; return 0;
} }
static
int davinci_emac_suspend(struct platform_device *pdev, pm_message_t state)
{
struct net_device *dev = platform_get_drvdata(pdev);
if (netif_running(dev))
emac_dev_stop(dev);
clk_disable(emac_clk);
return 0;
}
static int davinci_emac_resume(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
clk_enable(emac_clk);
if (netif_running(dev))
emac_dev_open(dev);
return 0;
}
/** /**
* davinci_emac_driver: EMAC platform driver structure * davinci_emac_driver: EMAC platform driver structure
*
* We implement only probe and remove functions - suspend/resume and
* others not supported by this module
*/ */
static struct platform_driver davinci_emac_driver = { static struct platform_driver davinci_emac_driver = {
.driver = { .driver = {
@@ -2819,6 +2841,8 @@ static struct platform_driver davinci_emac_driver = {
}, },
.probe = davinci_emac_probe, .probe = davinci_emac_probe,
.remove = __devexit_p(davinci_emac_remove), .remove = __devexit_p(davinci_emac_remove),
.suspend = davinci_emac_suspend,
.resume = davinci_emac_resume,
}; };
/** /**