diff options
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 7d59e0f43fda..578804dc29ca 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2702,13 +2702,17 @@ static int dwc3_gadget_soft_disconnect(struct dwc3 *dwc) static int dwc3_gadget_soft_connect(struct dwc3 *dwc) { + int ret; + /* * In the Synopsys DWC_usb31 1.90a programming guide section * 4.1.9, it specifies that for a reconnect after a * device-initiated disconnect requires a core soft reset * (DCTL.CSftRst) before enabling the run/stop bit. */ - dwc3_core_soft_reset(dwc); + ret = dwc3_core_soft_reset(dwc); + if (ret) + return ret; dwc3_event_buffers_setup(dwc); __dwc3_gadget_start(dwc); @@ -2753,25 +2757,11 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) synchronize_irq(dwc->irq_gadget); - if (!is_on) { + if (!is_on) ret = dwc3_gadget_soft_disconnect(dwc); - } else { - /* - * In the Synopsys DWC_usb31 1.90a programming guide section - * 4.1.9, it specifies that for a reconnect after a - * device-initiated disconnect requires a core soft reset - * (DCTL.CSftRst) before enabling the run/stop bit. - */ - ret = dwc3_core_soft_reset(dwc); - if (ret) - goto done; - - dwc3_event_buffers_setup(dwc); - __dwc3_gadget_start(dwc); - ret = dwc3_gadget_run_stop(dwc, true); - } + else + ret = dwc3_gadget_soft_connect(dwc); -done: pm_runtime_put(dwc->dev); return ret; |