usb: dwc2: gadget: Add handler for WkupAlert interrupt (187c5298) · Commits · 戴 / test

drivers/usb/dwc2/gadget.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -245,6 +245,27 @@ int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg)
		return tx_addr_max - addr;
		}

		/**
		* dwc2_gadget_wkup_alert_handler - Handler for WKUP_ALERT interrupt
		*
		* @hsotg: Programming view of the DWC_otg controller
		*
		*/
		static void dwc2_gadget_wkup_alert_handler(struct dwc2_hsotg *hsotg)
		{
		u32 gintsts2;
		u32 gintmsk2;

		gintsts2 = dwc2_readl(hsotg, GINTSTS2);
		gintmsk2 = dwc2_readl(hsotg, GINTMSK2);

		if (gintsts2 & GINTSTS2_WKUP_ALERT_INT) {
		dev_dbg(hsotg->dev, "%s: Wkup_Alert_Int\n", __func__);
		dwc2_clear_bit(hsotg, GINTSTS2, GINTSTS2_WKUP_ALERT_INT);
		dwc2_set_bit(hsotg, DCFG, DCTL_RMTWKUPSIG);
		}
		}

		/**
		* dwc2_hsotg_tx_fifo_average_depth - returns average depth of device mode
		* TX FIFOs
		@@ -3730,6 +3751,10 @@ irq_retry:
		if (gintsts & IRQ_RETRY_MASK && --retry_count > 0)
		goto irq_retry;

		/* Check WKUP_ALERT interrupt*/
		if (hsotg->params.service_interval)
		dwc2_gadget_wkup_alert_handler(hsotg);

		spin_unlock(&hsotg->lock);

		return IRQ_HANDLED;