diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 24bd9fdabc67..2d6d2c8244de 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -246,6 +246,27 @@ int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg) } /** + * 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; |