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authorChunfeng Yun <chunfeng.yun@mediatek.com>2019-04-17 11:28:19 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-05-03 09:13:47 +0300
commit60722c4eefbc9acddaf5e641f6dfb24bce930f9a (patch)
tree10bc200574466cd0a1f970ca6963b21e63847530 /drivers/usb
parent466375657d6c5987f2f2404c75b7081ede14cff4 (diff)
downloadlinux-60722c4eefbc9acddaf5e641f6dfb24bce930f9a.tar.xz
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: Chunfeng Yun <chunfeng.yun@mediatek.com> Acked-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc2/platform.c6
1 files changed, 3 insertions, 3 deletions
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 */