usb: dwc3: gadget: Set link state to RX_Detect on disconnect

When DWC3 receives disconnect event, it needs to set the link state to
RX_Detect.

DWC_usb3 3.30a programming guide 4.1.7

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index f8f4af8c48e862f444f1dfcb8ce50555ff69307c..caf12fd71e73a16867c319dc7e565414fc4018b6 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2759,6 +2759,8 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
 {
        int                     reg;
 
+       dwc3_gadget_set_link_state(dwc, DWC3_LINK_STATE_RX_DET);
+
        reg = dwc3_readl(dwc->regs, DWC3_DCTL);
        reg &= ~DWC3_DCTL_INITU1ENA;
        reg &= ~DWC3_DCTL_INITU2ENA;