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@xxxxxxxx>
---
drivers/usb/gadget/udc/aspeed_udc.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/usb/gadget/udc/aspeed_udc.c b/drivers/usb/gadget/udc/aspeed_udc.c
index f4781e611aaa..a362e31f7550 100644
--- a/drivers/usb/gadget/udc/aspeed_udc.c
+++ b/drivers/usb/gadget/udc/aspeed_udc.c
@@ -1459,8 +1459,6 @@ static void ast_udc_remove(struct platform_device *pdev)
ctrl = ast_udc_read(udc, AST_UDC_FUNC_CTRL) & ~USB_UPSTREAM_EN;
ast_udc_write(udc, ctrl, AST_UDC_FUNC_CTRL);
- clk_disable_unprepare(udc->clk);
-
spin_unlock_irqrestore(&udc->lock, flags);
if (udc->ep0_buf)
@@ -1500,16 +1498,11 @@ static int ast_udc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, udc);
- udc->clk = devm_clk_get(&pdev->dev, NULL);
+ udc->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(udc->clk)) {
rc = PTR_ERR(udc->clk);
goto err;
}
- rc = clk_prepare_enable(udc->clk);
- if (rc) {
- dev_err(&pdev->dev, "Failed to enable clock (0x%x)\n", rc);
- goto err;
- }
/* Check if we need to limit the HW to USB1 */
max_speed = usb_get_maximum_speed(&pdev->dev);
--
2.34.1
