stmmac: dwmac-socfpga: add PM ops and resume function

Implement the needed PM callbacks in the driver instead of
relying on the init/exit hooks in stmmac_platform. This gives
the driver more flexibility in how the code is organized.

Eventually the init/exit callbacks will be deprecated in favor
of the standard PM callbacks and driver remove function.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 784eb53..789013a 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -261,7 +261,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
        }
 
        plat_dat->bsp_priv = dwmac;
-       plat_dat->init = socfpga_dwmac_init;
        plat_dat->fix_mac_speed = socfpga_dwmac_fix_mac_speed;
 
        ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
@@ -271,6 +270,21 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
        return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int socfpga_dwmac_resume(struct device *dev)
+{
+       struct platform_device *pdev = to_platform_device(dev);
+       struct net_device *ndev = dev_get_drvdata(dev);
+       struct stmmac_priv *priv = netdev_priv(ndev);
+
+       socfpga_dwmac_init(pdev, priv->plat->bsp_priv);
+
+       return stmmac_resume(dev);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+SIMPLE_DEV_PM_OPS(socfpga_dwmac_pm_ops, stmmac_suspend, socfpga_dwmac_resume);
+
 static const struct of_device_id socfpga_dwmac_match[] = {
        { .compatible = "altr,socfpga-stmmac" },
        { }
@@ -282,7 +296,7 @@ static struct platform_driver socfpga_dwmac_driver = {
        .remove = stmmac_pltfr_remove,
        .driver = {
                .name           = "socfpga-dwmac",
-               .pm             = &stmmac_pltfr_pm_ops,
+               .pm             = &socfpga_dwmac_pm_ops,
                .of_match_table = socfpga_dwmac_match,
        },
 };