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usb: dwc3: core: fix runtime suspend at probe

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Just put runtime suspend synchronously for otg mode at dwc3 probe time.

We found that the USB3.0 HUB which integrated in rk3399-evb-ind board
could not be enumerated at the system boot time, and the reason is
the USB controller has been suspended when the HUB gets ready.

Fixes: d8b7417bea ("usb: dwc3: core: allow pm runtime for rockchip platform")
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Change-Id: I19600f327d97cb992994d280645a00069dc9e8d2
This commit is contained in:
Frank Wang
2021-09-22 17:33:07 +08:00
committed by Tao Huang
parent dac6b60a6b
commit bfc9c2149e
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/dwc3/core.c
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@@ -1661,7 +1661,8 @@ static int dwc3_probe(struct platform_device *pdev)
dwc3_debugfs_init(dwc);
if (of_device_is_compatible(dev->parent->of_node,
if (dwc->dr_mode == USB_DR_MODE_OTG &&
of_device_is_compatible(dev->parent->of_node,
"rockchip,rk3399-dwc3")) {
pm_runtime_allow(dev);
pm_runtime_put_sync_suspend(dev);