linux-kernel - [PATCH net-next 08/22] net: stmmac: dwmac-ipq806x: use devm_stmmac_probe_config

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Message-Id: <20230829104033.955-9-jszhang@kernel.org>
Date:   Tue, 29 Aug 2023 18:40:19 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Emil Renner Berthing <kernel@...il.dk>,
        Samin Guo <samin.guo@...rfivetech.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>,
        Russell King <linux@...linux.org.uk>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Cc:     netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 08/22] net: stmmac: dwmac-ipq806x: 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@...nel.org>
---
 .../ethernet/stmicro/stmmac/dwmac-ipq806x.c   | 29 ++++++-------------
 1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
index 9b0200749109..a9916fd07616 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
@@ -384,22 +384,20 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 	if (val)
 		return val;
 
-	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);
 
 	gmac = devm_kzalloc(dev, sizeof(*gmac), GFP_KERNEL);
-	if (!gmac) {
-		err = -ENOMEM;
-		goto err_remove_config_dt;
-	}
+	if (!gmac)
+		return -ENOMEM;
 
 	gmac->pdev = pdev;
 
 	err = ipq806x_gmac_of_parse(gmac);
 	if (err) {
 		dev_err(dev, "device tree parsing error\n");
-		goto err_remove_config_dt;
+		return err;
 	}
 
 	regmap_write(gmac->qsgmii_csr, QSGMII_PCS_CAL_LCKDT_CTL,
@@ -459,11 +457,11 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 	if (gmac->phy_mode == PHY_INTERFACE_MODE_SGMII) {
 		err = ipq806x_gmac_configure_qsgmii_params(gmac);
 		if (err)
-			goto err_remove_config_dt;
+			return err;
 
 		err = ipq806x_gmac_configure_qsgmii_pcs_speed(gmac);
 		if (err)
-			goto err_remove_config_dt;
+			return err;
 	}
 
 	plat_dat->has_gmac = true;
@@ -473,21 +471,12 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 	plat_dat->tx_fifo_size = 8192;
 	plat_dat->rx_fifo_size = 8192;
 
-	err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
-	if (err)
-		goto err_remove_config_dt;
-
-	return 0;
+	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
 
 err_unsupported_phy:
 	dev_err(&pdev->dev, "Unsupported PHY mode: \"%s\"\n",
 		phy_modes(gmac->phy_mode));
-	err = -EINVAL;
-
-err_remove_config_dt:
-	stmmac_remove_config_dt(pdev, plat_dat);
-
-	return err;
+	return -EINVAL;
 }
 
 static const struct of_device_id ipq806x_gmac_dwmac_match[] = {
@@ -498,7 +487,7 @@ MODULE_DEVICE_TABLE(of, ipq806x_gmac_dwmac_match);
 
 static struct platform_driver ipq806x_gmac_dwmac_driver = {
 	.probe = ipq806x_gmac_probe,
-	.remove_new = stmmac_pltfr_remove,
+	.remove_new = stmmac_pltfr_remove_no_dt,
 	.driver = {
 		.name		= "ipq806x-gmac-dwmac",
 		.pm		= &stmmac_pltfr_pm_ops,
-- 
2.40.1