net: stmmac: dwmac-meson: use devm_stmmac_probe_config_dt()

Simplify the driver's probe() function by using the devres
variant of stmmac_probe_config_dt().

The remove_new() callback now needs to be switched to
stmmac_pltfr_remove_no_dt().
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c

@@ -52,35 +52,22 @@ static int meson6_dwmac_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+	plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
 	if (IS_ERR(plat_dat))
 		return PTR_ERR(plat_dat);
 
 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
-	if (!dwmac) {
-		ret = -ENOMEM;
-		goto err_remove_config_dt;
-	}
+	if (!dwmac)
+		return -ENOMEM;
 
 	dwmac->reg = devm_platform_ioremap_resource(pdev, 1);
-	if (IS_ERR(dwmac->reg)) {
-		ret = PTR_ERR(dwmac->reg);
-		goto err_remove_config_dt;
-	}
+	if (IS_ERR(dwmac->reg))
+		return PTR_ERR(dwmac->reg);
 
 	plat_dat->bsp_priv = dwmac;
 	plat_dat->fix_mac_speed = meson6_dwmac_fix_mac_speed;
 
-	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
-	if (ret)
-		goto err_remove_config_dt;
-
-	return 0;
-
-err_remove_config_dt:
-	stmmac_remove_config_dt(pdev, plat_dat);
-
-	return ret;
+	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
 }
 
 static const struct of_device_id meson6_dwmac_match[] = {
@@ -91,7 +78,7 @@ MODULE_DEVICE_TABLE(of, meson6_dwmac_match);
 
 static struct platform_driver meson6_dwmac_driver = {
 	.probe  = meson6_dwmac_probe,
-	.remove_new = stmmac_pltfr_remove,
+	.remove_new = stmmac_pltfr_remove_no_dt,
 	.driver = {
 		.name           = "meson6-dwmac",
 		.pm		= &stmmac_pltfr_pm_ops,