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authorRanjith Lohithakshan <ranjithl@ti.com>2009-11-04 22:06:20 -0800
committerDavid S. Miller <davem@davemloft.net>2009-11-04 22:06:20 -0800
commit8d044fe6aacaf573112331847155211a56a12736 (patch)
tree3fcb62e2d1a26d9d628b6e4e8f8b70fd2862db93
parent9f9354b92defa15aa0e215946c6e2dbccecb6aa7 (diff)
downloadlinux-2.6.34-ux500-8d044fe6aacaf573112331847155211a56a12736.tar.gz
TI DaVinci EMAC: Add suspend/resume capability
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>
-rw-r--r--drivers/net/davinci_emac.c30
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index a876dce13b9..f1b09c0992b 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -2806,11 +2806,33 @@ static int __devexit davinci_emac_remove(struct platform_device *pdev)
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
- *
- * We implement only probe and remove functions - suspend/resume and
- * others not supported by this module
*/
static struct platform_driver davinci_emac_driver = {
.driver = {
@@ -2819,6 +2841,8 @@ static struct platform_driver davinci_emac_driver = {
},
.probe = davinci_emac_probe,
.remove = __devexit_p(davinci_emac_remove),
+ .suspend = davinci_emac_suspend,
+ .resume = davinci_emac_resume,
};
/**