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usb: ohci-exynos: Use devm_clk_get_enabled() helpers

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The devm_clk_get_enabled() helpers:
    - call devm_clk_get()
    - call clk_prepare_enable() and register what is needed in order to
      call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code and avoids the calls to clk_disable_unprepare().

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20240412142317.5191-4-linux.amoon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anand Moon 2024-04-12 19:52:52 +05:30 committed by Greg Kroah-Hartman
parent 3f26e2b07a
commit 3d284c95ee
1 changed files with 3 additions and 11 deletions
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14
drivers/usb/host/ohci-exynos.c
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@ -135,20 +135,16 @@ static int exynos_ohci_probe(struct platform_device *pdev)
err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci);
if (err)
goto fail_clk;
goto fail_io;
exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost");
exynos_ohci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ohci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(exynos_ohci->clk);
goto fail_clk;
goto fail_io;
}
err = clk_prepare_enable(exynos_ohci->clk);
if (err)
goto fail_clk;
hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(hcd->regs)) {
err = PTR_ERR(hcd->regs);
@ -191,8 +187,6 @@ static int exynos_ohci_probe(struct platform_device *pdev)
exynos_ohci_phy_disable(&pdev->dev);
pdev->dev.of_node = exynos_ohci->of_node;
fail_io:
clk_disable_unprepare(exynos_ohci->clk);
fail_clk:
usb_put_hcd(hcd);
return err;
}
@ -208,8 +202,6 @@ static void exynos_ohci_remove(struct platform_device *pdev)
exynos_ohci_phy_disable(&pdev->dev);
clk_disable_unprepare(exynos_ohci->clk);
usb_put_hcd(hcd);
}