diff mbox series

[v4,3/5] usb: ohci-exynos: Use devm_clk_get_enabled() helpers

Message ID 20240421134752.2652-4-linux.amoon@gmail.com (mailing list archive)
State Accepted
Commit 3d284c95eeb8f3d0c84d0dcaa168ee545026a396
Headers show
Series Use new helper function for clock and PM macro | expand

Commit Message

Anand Moon April 21, 2024, 1:47 p.m. UTC 
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().

Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
v4 : Add  reviewed by  Alan Stern

v3: drop dev_err_probe to simplify the error handle.

v2: new patch in this series
---
 drivers/usb/host/ohci-exynos.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 20e26a474591..89e6587c089b 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -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);
 }