[PATCH v5 07/17] spi: orion: Simplify clock handling with devm_clk_get_enabled()

[Pei Xiao]

Replace devm_clk_get() followed by clk_prepare_enable() with
devm_clk_get_enabled() for the "axi" clock. This reduces
boilerplate code and error handling, as the managed API automatically
disables the clock when the device is removed or if probe fails.

Remove the now-unnecessary clk_disable_unprepare() call from the
probe error path and the remove callback. Adjust error handling labels
accordingly.

Signed-off-by: Pei Xiao <xiaopei01 at kylinos.cn>
---
 drivers/spi/spi-orion.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 7a2186b51b4c..a1b489b51115 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -695,13 +695,11 @@ static int orion_spi_probe(struct platform_device *pdev)
 	}
 
 	/* The following clock is only used by some SoCs */
-	spi->axi_clk = devm_clk_get(&pdev->dev, "axi");
+	spi->axi_clk = devm_clk_get_enabled(&pdev->dev, "axi");
 	if (PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) {
 		status = -EPROBE_DEFER;
 		goto out;
 	}
-	if (!IS_ERR(spi->axi_clk))
-		clk_prepare_enable(spi->axi_clk);
 
 	tclk_hz = clk_get_rate(spi->clk);
 
@@ -726,7 +724,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 	spi->base = devm_platform_get_and_ioremap_resource(pdev, 0, &r);
 	if (IS_ERR(spi->base)) {
 		status = PTR_ERR(spi->base);
-		goto out_rel_axi_clk;
+		goto out;
 	}
 
 	for_each_available_child_of_node(pdev->dev.of_node, np) {
@@ -764,7 +762,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 		if (!dir_acc->vaddr) {
 			status = -ENOMEM;
 			of_node_put(np);
-			goto out_rel_axi_clk;
+			goto out;
 		}
 		dir_acc->size = PAGE_SIZE;
 
@@ -788,8 +786,6 @@ static int orion_spi_probe(struct platform_device *pdev)
 
 out_rel_pm:
 	pm_runtime_disable(&pdev->dev);
-out_rel_axi_clk:
-	clk_disable_unprepare(spi->axi_clk);
 out:
 	spi_controller_put(host);
 	return status;
@@ -799,10 +795,8 @@ static int orion_spi_probe(struct platform_device *pdev)
 static void orion_spi_remove(struct platform_device *pdev)
 {
 	struct spi_controller *host = platform_get_drvdata(pdev);
-	struct orion_spi *spi = spi_controller_get_devdata(host);
 
 	pm_runtime_get_sync(&pdev->dev);
-	clk_disable_unprepare(spi->axi_clk);
 
 	spi_unregister_controller(host);
 	pm_runtime_disable(&pdev->dev);
-- 
2.25.1