'pm_runtime_set_active' sets a flag to describe rumtime status. This flag is automatically set in pm_runtime_get_sync/put_sync API. 'pm_runtime_set_active' checks the runtime status of parent device. As a result, the below error message is printed. dwc3 11110000.dwc3: runtime PM trying to activate child device 11110000.dwc3 but parent (11110000.usb) is not active. Signed-off-by: taehyun cho <taehyun.cho@xxxxxxxxxxx> --- drivers/usb/dwc3/core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 94fdbe502ce9..e7c0e390f885 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1553,7 +1553,6 @@ static int dwc3_probe(struct platform_device *pdev) spin_lock_init(&dwc->lock); - pm_runtime_set_active(dev); pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, DWC3_DEFAULT_AUTOSUSPEND_DELAY); pm_runtime_enable(dev); @@ -1920,7 +1919,6 @@ static int dwc3_resume(struct device *dev) return ret; pm_runtime_disable(dev); - pm_runtime_set_active(dev); pm_runtime_enable(dev); return 0; -- 2.26.0
