Initially resetting device address was done in dwc2_hsotg_irq() interrupt handler. However, when core is hibernated USB RESET is not handled in dwc2_hsotg_irq() handler, instead USB RESET interrupt is handled in dwc2_handle_gpwrdn_intr() handler. - Added reset device address to zero when core exits from gadget hibernation. Signed-off-by: Artur Petrosyan <arturp@xxxxxxxxxxxx> Signed-off-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx> --- drivers/usb/dwc2/gadget.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index dcb0fbb8bc42..8c3e1f1c1b0f 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -5234,6 +5234,10 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, /* Restore GUSBCFG, DCFG and DCTL */ dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); dwc2_writel(hsotg, dr->dcfg, DCFG); + + /* On USB Reset, reset device address to zero */ + if (reset) + dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK); dwc2_writel(hsotg, dr->dctl, DCTL); /* De-assert Wakeup Logic */ -- 2.11.0
