diff options
| author | Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com> | 2018-08-29 21:02:57 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-10-02 10:50:43 +0300 |
| commit | 187c5298a12292eab55e3eb09e70e2b145646bcc (patch) | |
| tree | 9c135c57d9470188493f576d94d283b2fa0dfc20 /drivers/usb/dwc2 | |
| parent | 4abe453750db8ada8b0a56c45c89ab18920e9a80 (diff) | |
| download | linux-187c5298a12292eab55e3eb09e70e2b145646bcc.tar.bz2 | |
usb: dwc2: gadget: Add handler for WkupAlert interrupt
Added interrupt handler for WkupAlert interrupt.
This interrupt should initiate Remote Wake up.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -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; |