netdev - [PATCH net-next] net: mdio: mux-meson-g12a: use devm_clk_get

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Date:   Thu, 19 Jan 2023 23:56:37 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        David Miller <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Kevin Hilman <khilman@...libre.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>
Subject: [PATCH net-next] net: mdio: mux-meson-g12a: use devm_clk_get_enabled
 to simplify the code

Use devm_clk_get_enabled() to simplify the code.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/mdio/mdio-mux-meson-g12a.c | 27 ++++++--------------------
 1 file changed, 6 insertions(+), 21 deletions(-)

diff --git a/drivers/net/mdio/mdio-mux-meson-g12a.c b/drivers/net/mdio/mdio-mux-meson-g12a.c
index 4a2e94faf..1c1ed6e11 100644
--- a/drivers/net/mdio/mdio-mux-meson-g12a.c
+++ b/drivers/net/mdio/mdio-mux-meson-g12a.c
@@ -55,7 +55,6 @@ struct g12a_mdio_mux {
 	bool pll_is_enabled;
 	void __iomem *regs;
 	void *mux_handle;
-	struct clk *pclk;
 	struct clk *pll;
 };
 
@@ -302,6 +301,7 @@ static int g12a_mdio_mux_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct g12a_mdio_mux *priv;
+	struct clk *pclk;
 	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -314,34 +314,21 @@ static int g12a_mdio_mux_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->regs))
 		return PTR_ERR(priv->regs);
 
-	priv->pclk = devm_clk_get(dev, "pclk");
-	if (IS_ERR(priv->pclk))
-		return dev_err_probe(dev, PTR_ERR(priv->pclk),
+	pclk = devm_clk_get_enabled(dev, "pclk");
+	if (IS_ERR(pclk))
+		return dev_err_probe(dev, PTR_ERR(pclk),
 				     "failed to get peripheral clock\n");
 
-	/* Make sure the device registers are clocked */
-	ret = clk_prepare_enable(priv->pclk);
-	if (ret) {
-		dev_err(dev, "failed to enable peripheral clock");
-		return ret;
-	}
-
 	/* Register PLL in CCF */
 	ret = g12a_ephy_glue_clk_register(dev);
 	if (ret)
-		goto err;
+		return ret;
 
 	ret = mdio_mux_init(dev, dev->of_node, g12a_mdio_switch_fn,
 			    &priv->mux_handle, dev, NULL);
-	if (ret) {
+	if (ret)
 		dev_err_probe(dev, ret, "mdio multiplexer init failed\n");
-		goto err;
-	}
 
-	return 0;
-
-err:
-	clk_disable_unprepare(priv->pclk);
 	return ret;
 }
 
@@ -354,8 +341,6 @@ static int g12a_mdio_mux_remove(struct platform_device *pdev)
 	if (priv->pll_is_enabled)
 		clk_disable_unprepare(priv->pll);
 
-	clk_disable_unprepare(priv->pclk);
-
 	return 0;
 }
 
-- 
2.39.0