Merge "usb: dwc3: gadget: Avoid unclocked access due to pm_runtime_get failure"

	return DWC3_DSTS_SOFFN(reg);

}

#define DWC3_PM_RESUME_RETRIES		20    /* Max Number of retries */

#define DWC3_PM_RESUME_DELAY		100   /* 100 msec */

static void dwc3_gadget_wakeup_work(struct work_struct *w)

{

	struct dwc3		*dwc;

	int			ret;

	static int		retry_count;

	dwc = container_of(w, struct dwc3, wakeup_work);

	pm_runtime_get_sync(dwc->dev);

	ret = pm_runtime_get_sync(dwc->dev);

	if (ret) {

		/* pm_runtime_get_sync returns -EACCES error between

		 * late_suspend and early_resume, wait for system resume to

		 * finish and queue work again

		 */

		pr_debug("PM runtime get sync failed, ret %d\n", ret);

		if (ret == -EACCES) {

			pm_runtime_put_noidle(dwc->dev);

			if (retry_count == DWC3_PM_RESUME_RETRIES) {

				retry_count = 0;

				pr_err("pm_runtime_get_sync timed out\n");

				return;

			}

			msleep(DWC3_PM_RESUME_DELAY);

			retry_count++;

			schedule_work(&dwc->wakeup_work);

			return;

		}

	}

	retry_count = 0;

	dbg_event(0xFF, "Gdgwake gsyn",

		atomic_read(&dwc->dev->power.usage_count));