diff options
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index bed56dc..f867e95 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2308,8 +2308,9 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, writel(GINTSTS_ERLYSUSP | GINTSTS_SESSREQINT | GINTSTS_GOUTNAKEFF | GINTSTS_GINNAKEFF | GINTSTS_CONIDSTSCHNG | GINTSTS_USBRST | - GINTSTS_ENUMDONE | GINTSTS_OTGINT | - GINTSTS_USBSUSP | GINTSTS_WKUPINT, + GINTSTS_RESETDET | GINTSTS_ENUMDONE | + GINTSTS_OTGINT | GINTSTS_USBSUSP | + GINTSTS_WKUPINT, hsotg->regs + GINTMSK); if (using_dma(hsotg)) @@ -2475,7 +2476,19 @@ irq_retry: } } - if (gintsts & GINTSTS_USBRST) { + if (gintsts & GINTSTS_RESETDET) { + dev_dbg(hsotg->dev, "%s: USBRstDet\n", __func__); + + writel(GINTSTS_RESETDET, hsotg->regs + GINTSTS); + + /* This event must be used only if controller is suspended */ + if (hsotg->lx_state == DWC2_L2) { + dwc2_exit_hibernation(hsotg, true); + hsotg->lx_state = DWC2_L0; + } + } + + if (gintsts & (GINTSTS_USBRST | GINTSTS_RESETDET)) { u32 usb_status = readl(hsotg->regs + GOTGCTL); |