USB CV driver stack doesn't perform USB RESET after device disconnect/
connect, so need to reset to zero DEVADDR field in DCFG to pass
enumeration again.
Signed-off-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 98a4a79e7f6e..deb3d901b99d 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3174,6 +3174,9 @@ void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg)
return;
hsotg->connected = 0;
+ /* On disconnect reset device address to zero */
+ __bic32(hsotg->regs + DCFG, DCFG_DEVADDR_MASK);
+
hsotg->test_mode = 0;
for (ep = 0; ep < hsotg->num_of_eps; ep++) {
--
2.11.0
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
