Commit e894cdc2 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman

usb: dwc2: get optional clock by devm_clk_get_optional()

When the driver tries to get optional clock, it ignores all errors,
but if only ignores -ENOENT, it will cover some real errors, such as
-EPROBE_DEFER, so use devm_clk_get_optional() to get optional clock.

Cc: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bbe2028f
......@@ -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 */
......
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