Patchwork [v2,4/6] usb: dwc2: get optional clock by devm_clk_get_optional()

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Submitter Chunfeng Yun
Date April 10, 2019, 6:47 a.m.
Message ID <80836043f845d6afcdfe20adae5cfdd69a9c2a7f.1554877692.git.chunfeng.yun@mediatek.com>
Download mbox | patch
Permalink /patch/769425/
State New
Headers show

Comments

Chunfeng Yun - April 10, 2019, 6:47 a.m.
Use devm_clk_get_optional() to get optional clock

Cc: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
---
v2: add Acked-by Minas Harutyunyan
---
 drivers/usb/dwc2/platform.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index c0b64d483552..9aa9682a5cd2 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -284,10 +284,10 @@  static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
 	}
 
 	/* Clock */
-	hsotg->clk = devm_clk_get(hsotg->dev, "otg");
+	hsotg->clk = devm_clk_get_optional(hsotg->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
-		hsotg->clk = NULL;
-		dev_dbg(hsotg->dev, "cannot get otg clock\n");
+		dev_err(hsotg->dev, "cannot get otg clock\n");
+		return PTR_ERR(hsotg->clk);
 	}
 
 	/* Regulators */