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Commit 5bbde4d2 authored by Nimrod Andy's avatar Nimrod Andy Committed by David S. Miller
Browse files

net: fec: use pinctrl PM helpers 



when system suspend, need to set pins to low power state to
save IO power consumption, there are three states of pinctrl:
"default", "idle" and "sleep". Currently enet supports default
and sleep state.

Signed-off-by: default avatarFugang Duan <B38611@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ce25b68b

drivers/net/ethernet/freescale/fec_main.c

+8 −0
Original line number Diff line number Diff line
@@ -1816,6 +1816,7 @@ fec_enet_open(struct net_device *ndev) 
	struct fec_enet_private *fep = netdev_priv(ndev);

	int ret;



	pinctrl_pm_select_default_state(&fep->pdev->dev);

	ret = fec_enet_clk_enable(ndev, true);

	if (ret)

		return ret;
@@ -1859,6 +1860,7 @@ fec_enet_close(struct net_device *ndev) 
	}



	fec_enet_clk_enable(ndev, false);

	pinctrl_pm_select_sleep_state(&fep->pdev->dev);

	fec_enet_free_buffers(ndev);



	return 0;
@@ -2162,6 +2164,9 @@ fec_probe(struct platform_device *pdev) 
		fep->pause_flag |= FEC_PAUSE_FLAG_AUTONEG;

#endif



	/* Select default pin state */

	pinctrl_pm_select_default_state(&pdev->dev);



	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	fep->hwp = devm_ioremap_resource(&pdev->dev, r);

	if (IS_ERR(fep->hwp)) {
@@ -2258,6 +2263,7 @@ fec_probe(struct platform_device *pdev) 
	/* Carrier starts down, phylib will bring it up */

	netif_carrier_off(ndev);

	fec_enet_clk_enable(ndev, false);

	pinctrl_pm_select_sleep_state(&pdev->dev);



	ret = register_netdev(ndev);

	if (ret)
@@ -2317,6 +2323,7 @@ fec_suspend(struct device *dev) 
		netif_device_detach(ndev);

	}

	fec_enet_clk_enable(ndev, false);

	pinctrl_pm_select_sleep_state(&fep->pdev->dev);



	if (fep->reg_phy)

		regulator_disable(fep->reg_phy);
@@ -2337,6 +2344,7 @@ fec_resume(struct device *dev) 
			return ret;

	}



	pinctrl_pm_select_default_state(&fep->pdev->dev);

	ret = fec_enet_clk_enable(ndev, true);

	if (ret)

		goto failed_clk;