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Commit 618073e3 authored by Mugunthan V N's avatar Mugunthan V N Committed by David S. Miller
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drivers: net: cpsw: dual_emac: in suspend/resume bring down/up all the netdev 



During suspend and resume in Dual EMAC, second port is not working as in
suspend/resume only the first slave netdev is closed and opened. So bring
down and up all the interfaces that are up during suspend/resume.

Signed-off-by: default avatarMugunthan V N <mugunthanvnm@ti.com>
Tested-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0bc9b73b

drivers/net/ethernet/ti/cpsw.c

+24 −5
Original line number Diff line number Diff line
@@ -2334,10 +2334,19 @@ static int cpsw_suspend(struct device *dev) 
	struct net_device	*ndev = platform_get_drvdata(pdev);

	struct cpsw_priv	*priv = netdev_priv(ndev);



	if (priv->data.dual_emac) {

		int i;



		for (i = 0; i < priv->data.slaves; i++) {

			if (netif_running(priv->slaves[i].ndev))

				cpsw_ndo_stop(priv->slaves[i].ndev);

			soft_reset_slave(priv->slaves + i);

		}

	} else {

		if (netif_running(ndev))

			cpsw_ndo_stop(ndev);



		for_each_slave(priv, soft_reset_slave);

	}



	pm_runtime_put_sync(&pdev->dev);
@@ -2351,14 +2360,24 @@ static int cpsw_resume(struct device *dev) 
{

	struct platform_device	*pdev = to_platform_device(dev);

	struct net_device	*ndev = platform_get_drvdata(pdev);

	struct cpsw_priv	*priv = netdev_priv(ndev);



	pm_runtime_get_sync(&pdev->dev);



	/* Select default pin state */

	pinctrl_pm_select_default_state(&pdev->dev);



	if (priv->data.dual_emac) {

		int i;



		for (i = 0; i < priv->data.slaves; i++) {

			if (netif_running(priv->slaves[i].ndev))

				cpsw_ndo_open(priv->slaves[i].ndev);

		}

	} else {

		if (netif_running(ndev))

			cpsw_ndo_open(ndev);

	}

	return 0;

}