From 0e1bd497ca372031b5aa37fdffc5cf6d3a796343 Mon Sep 17 00:00:00 2001 From: Li Zetao Date: Tue, 15 Aug 2023 23:13:52 +0800 Subject: [PATCH] ata: pata_imx: Use helper function devm_clk_get_enabled() After the commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared and enabled clocks"), the pair of functions devm_clk_get() and clk_prepare_enable() can be replaced with the single function devm_clk_get_enabled(). Moreover, the driver will keep the clock prepared (or enabled) during the whole lifetime of the device, so it is unnecessary to unprepare and disable the clock explicitly when removing the device or in the error handling path. Signed-off-by: Li Zetao Reviewed-by: Sergey Shtylyov Signed-off-by: Damien Le Moal --- drivers/ata/pata_imx.c | 28 +++++++--------------------- 1 file changed, 7 insertions(+), 21 deletions(-) diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c index 91da7ecec0fc..d0aa8fc929b4 100644 --- a/drivers/ata/pata_imx.c +++ b/drivers/ata/pata_imx.c @@ -141,21 +141,15 @@ static int pata_imx_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - priv->clk = devm_clk_get(&pdev->dev, NULL); + priv->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(priv->clk)) { - dev_err(&pdev->dev, "Failed to get clock\n"); + dev_err(&pdev->dev, "Failed to get and enable clock\n"); return PTR_ERR(priv->clk); } - ret = clk_prepare_enable(priv->clk); - if (ret) - return ret; - host = ata_host_alloc(&pdev->dev, 1); - if (!host) { - ret = -ENOMEM; - goto err; - } + if (!host) + return -ENOMEM; host->private_data = priv; ap = host->ports[0]; @@ -165,10 +159,8 @@ static int pata_imx_probe(struct platform_device *pdev) ap->flags |= ATA_FLAG_SLAVE_POSS; priv->host_regs = devm_platform_get_and_ioremap_resource(pdev, 0, &io_res); - if (IS_ERR(priv->host_regs)) { - ret = PTR_ERR(priv->host_regs); - goto err; - } + if (IS_ERR(priv->host_regs)) + return PTR_ERR(priv->host_regs); ap->ioaddr.cmd_addr = priv->host_regs + PATA_IMX_DRIVE_DATA; ap->ioaddr.ctl_addr = priv->host_regs + PATA_IMX_DRIVE_CONTROL; @@ -194,13 +186,9 @@ static int pata_imx_probe(struct platform_device *pdev) &pata_imx_sht); if (ret) - goto err; + return ret; return 0; -err: - clk_disable_unprepare(priv->clk); - - return ret; } static void pata_imx_remove(struct platform_device *pdev) @@ -211,8 +199,6 @@ static void pata_imx_remove(struct platform_device *pdev) ata_host_detach(host); __raw_writel(0, priv->host_regs + PATA_IMX_ATA_INT_EN); - - clk_disable_unprepare(priv->clk); } #ifdef CONFIG_PM_SLEEP -- 2.11.0