It seems pm_runtime_put calls runtime_idle callback not runtime_suspend callback. It's better to use pm_runtime_put_sync_suspend to allow DWC3 runtime suspend.
Signed-off-by: Daehwan Jung <[email protected]> --- drivers/usb/dwc3/gadget.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index aebcf8e..4a4b93b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2229,7 +2229,7 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) */ ret = pm_runtime_get_sync(dwc->dev); if (!ret || ret < 0) { - pm_runtime_put(dwc->dev); + pm_runtime_put_sync_suspend(dwc->dev); return 0; } -- 2.7.4
