linux-kernel - [PATCH] phy: freescale: fsl-samsung-hdmi: Use helper function devm_clk_get

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Message-ID: <tencent_9087BCE04E38E6AA5C4B2252B82FA99C2009@qq.com>
Date: Sat,  8 Feb 2025 11:44:01 +0800
From: xiaopeitux@...mail.com
To: aford173@...il.com,
	vkoul@...nel.org,
	kishon@...nel.org,
	linux-phy@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Pei Xiao <xiaopei01@...inos.cn>
Subject: [PATCH] phy: freescale: fsl-samsung-hdmi: Use helper function devm_clk_get_enabled()

From: Pei Xiao <xiaopei01@...inos.cn>

Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
and enabled clocks"), devm_clk_get() and clk_prepare_enable() can now be
replaced by devm_clk_get_enabled() when driver enables the clocks for the
whole lifetime of the device. Moreover, it is no longer necessary to
unprepare and disable the clocks explicitly.

Signed-off-by: Pei Xiao <xiaopei01@...inos.cn>
---
 drivers/phy/freescale/phy-fsl-samsung-hdmi.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
index 6817ceabaab4..7be625a25f9a 100644
--- a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
+++ b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
@@ -669,7 +669,7 @@ static int fsl_samsung_hdmi_phy_probe(struct platform_device *pdev)
 	if (IS_ERR(phy->regs))
 		return PTR_ERR(phy->regs);
 
-	phy->apbclk = devm_clk_get(phy->dev, "apb");
+	phy->apbclk = devm_clk_get_enabled(phy->dev, "apb");
 	if (IS_ERR(phy->apbclk))
 		return dev_err_probe(phy->dev, PTR_ERR(phy->apbclk),
 				     "failed to get apb clk\n");
@@ -679,12 +679,6 @@ static int fsl_samsung_hdmi_phy_probe(struct platform_device *pdev)
 		return dev_err_probe(phy->dev, PTR_ERR(phy->refclk),
 				     "failed to get ref clk\n");
 
-	ret = clk_prepare_enable(phy->apbclk);
-	if (ret) {
-		dev_err(phy->dev, "failed to enable apbclk\n");
-		return ret;
-	}
-
 	pm_runtime_get_noresume(phy->dev);
 	pm_runtime_set_active(phy->dev);
 	pm_runtime_enable(phy->dev);
@@ -700,8 +694,6 @@ static int fsl_samsung_hdmi_phy_probe(struct platform_device *pdev)
 	return 0;
 
 register_clk_failed:
-	clk_disable_unprepare(phy->apbclk);
-
 	return ret;
 }
 
-- 
2.25.1