diff options
| -rw-r--r-- | drivers/usb/dwc3/core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 2498f0efb1..1bd41f8bc7 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -581,6 +581,12 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) return 0; } +static void dwc3_gadget_run(struct dwc3 *dwc) +{ + dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_RUN_STOP); + mdelay(100); +} + static void dwc3_core_exit_mode(struct dwc3 *dwc) { switch (dwc->dr_mode) { @@ -598,6 +604,13 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) /* do nothing */ break; } + + /* + * switch back to peripheral mode + * This enables the phy to enter idle and then, if enabled, suspend. + */ + dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_gadget_run(dwc); } #define DWC3_ALIGN_MASK (16 - 1) |