[PATCH 4/4] gpio: xilinx: Use helper function devm_clk_get_enabled()

[Zhang Zekun <zhangzekun11@huawei.com>]

devm_clk_get() and clk_prepare_enable() can be replaced by helper
function devm_clk_get_enabled(). Let's use devm_clk_get_enabled() to
simplify code and avoid calling clk_disable_unprepare().

Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>
---
 drivers/gpio/gpio-xilinx.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index 7348df385198..afcf432a1573 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -333,12 +333,9 @@ static int __maybe_unused xgpio_suspend(struct device *dev)
  */
 static void xgpio_remove(struct platform_device *pdev)
 {
-	struct xgpio_instance *gpio = platform_get_drvdata(pdev);
-
 	pm_runtime_get_sync(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-	clk_disable_unprepare(gpio->clk);
 }
 
 /**
@@ -644,15 +641,10 @@ static int xgpio_probe(struct platform_device *pdev)
 		return PTR_ERR(chip->regs);
 	}
 
-	chip->clk = devm_clk_get_optional(&pdev->dev, NULL);
+	chip->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
 	if (IS_ERR(chip->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(chip->clk), "input clock not found.\n");
 
-	status = clk_prepare_enable(chip->clk);
-	if (status < 0) {
-		dev_err(&pdev->dev, "Failed to prepare clk\n");
-		return status;
-	}
 	pm_runtime_get_noresume(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
@@ -699,7 +691,6 @@ static int xgpio_probe(struct platform_device *pdev)
 err_pm_put:
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-	clk_disable_unprepare(chip->clk);
 	return status;
 }
 
-- 
2.17.1