diff options
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 4519d06c9ca2..23de2a5a40d6 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -702,6 +702,7 @@ void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc) DWC31_GTXFIFOSIZ_TXFRAMNUM; dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(num >> 1), size); + dep->flags &= ~DWC3_EP_TXFIFO_RESIZED; } dwc->num_ep_resized = 0; } @@ -747,6 +748,10 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) if (!usb_endpoint_dir_in(dep->endpoint.desc) || dep->number <= 1) return 0; + /* bail if already resized */ + if (dep->flags & DWC3_EP_TXFIFO_RESIZED) + return 0; + ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7); if ((dep->endpoint.maxburst > 1 && @@ -807,6 +812,7 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep) } dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(dep->number >> 1), fifo_size); + dep->flags |= DWC3_EP_TXFIFO_RESIZED; dwc->num_ep_resized++; return 0; @@ -995,7 +1001,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) dep->stream_capable = false; dep->type = 0; - dep->flags = 0; + dep->flags &= DWC3_EP_TXFIFO_RESIZED; return 0; } @@ -1813,7 +1819,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) struct dwc3 *dwc = dep->dwc; if (!dep->endpoint.desc || !dwc->pullups_connected || !dwc->connected) { - dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n", + dev_dbg(dwc->dev, "%s: can't queue to disabled endpoint\n", dep->name); return -ESHUTDOWN; } @@ -2418,7 +2424,7 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) int ret; is_on = !!is_on; - + dwc->softconnect = is_on; /* * Per databook, when we want to stop the gadget, if a control transfer * is still in process, complete it and get the core into setup phase. @@ -4352,7 +4358,7 @@ int dwc3_gadget_resume(struct dwc3 *dwc) { int ret; - if (!dwc->gadget_driver) + if (!dwc->gadget_driver || !dwc->softconnect) return 0; ret = __dwc3_gadget_start(dwc); |