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| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2019-04-17 16:28:19 +0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-05-03 09:13:47 +0300 |
| commit | 60722c4eefbc9acddaf5e641f6dfb24bce930f9a (patch) | |
| tree | 10bc200574466cd0a1f970ca6963b21e63847530 | |
| parent | 466375657d6c5987f2f2404c75b7081ede14cff4 (diff) | |
| download | linux-stable-60722c4eefbc9acddaf5e641f6dfb24bce930f9a.tar.gz linux-stable-60722c4eefbc9acddaf5e641f6dfb24bce930f9a.tar.bz2 linux-stable-60722c4eefbc9acddaf5e641f6dfb24bce930f9a.zip | |
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>
| -rw-r--r-- | drivers/usb/dwc2/platform.c | 6 |
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 */ |