net: stmmac: dwmac-imx: 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-imx.c

@@ -331,15 +331,14 @@ static int imx_dwmac_probe(struct platform_device *pdev)
 	if (!dwmac)
 		return -ENOMEM;
 
-	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);
 
 	data = of_device_get_match_data(&pdev->dev);
 	if (!data) {
 		dev_err(&pdev->dev, "failed to get match data\n");
-		ret = -EINVAL;
-		goto err_match_data;
+		return -EINVAL;
 	}
 
 	dwmac->ops = data;
@@ -348,7 +347,7 @@ static int imx_dwmac_probe(struct platform_device *pdev)
 	ret = imx_dwmac_parse_dt(dwmac, &pdev->dev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to parse OF data\n");
-		goto err_parse_dt;
+		return ret;
 	}
 
 	if (data->flags & STMMAC_FLAG_HWTSTAMP_CORRECT_LATENCY)
@@ -365,7 +364,7 @@ static int imx_dwmac_probe(struct platform_device *pdev)
 
 	ret = imx_dwmac_clks_config(dwmac, true);
 	if (ret)
-		goto err_clks_config;
+		return ret;
 
 	ret = imx_dwmac_init(pdev, dwmac);
 	if (ret)
@@ -385,10 +384,6 @@ static int imx_dwmac_probe(struct platform_device *pdev)
 	imx_dwmac_exit(pdev, plat_dat->bsp_priv);
 err_dwmac_init:
 	imx_dwmac_clks_config(dwmac, false);
-err_clks_config:
-err_parse_dt:
-err_match_data:
-	stmmac_remove_config_dt(pdev, plat_dat);
 	return ret;
 }
 
@@ -423,7 +418,7 @@ MODULE_DEVICE_TABLE(of, imx_dwmac_match);
 
 static struct platform_driver imx_dwmac_driver = {
 	.probe  = imx_dwmac_probe,
-	.remove_new = stmmac_pltfr_remove,
+	.remove_new = stmmac_pltfr_remove_no_dt,
 	.driver = {
 		.name           = "imx-dwmac",
 		.pm		= &stmmac_pltfr_pm_ops,