@@ -246,19 +246,13 @@ static int ux500_probe(struct platform_device *pdev)
goto err0;
}
- clk = devm_clk_get(&pdev->dev, NULL);
+ clk = clk_prepare_enable(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err1;
}
- ret = clk_prepare_enable(clk);
- if (ret) {
- dev_err(&pdev->dev, "failed to enable clock\n");
- goto err1;
- }
-
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &pdev->dev.coherent_dma_mask;
musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
@@ -276,26 +270,23 @@ static int ux500_probe(struct platform_device *pdev)
ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
+ goto err1;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
+ goto err1;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
+ goto err1;
}
return 0;
-err2:
- clk_disable_unprepare(clk);
-
err1:
platform_device_put(musb);
@@ -308,7 +299,6 @@ static void ux500_remove(struct platform_device *pdev)
struct ux500_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb);
- clk_disable_unprepare(glue->clk);
}
#ifdef CONFIG_PM_SLEEP
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 calls to clk_disable_unprepare(). Signed-off-by: Lei Liu <liulei.rjpt@vivo.com> --- drivers/usb/musb/ux500.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-)