Commit 307bc11f authored Jul 11, 2017 by Minas Harutyunyan Committed by Felipe Balbi Jul 18, 2017

usb: dwc2: gadget: On USB RESET reset device address to zero



Reseted DEVADDR field in DCFG to zero on USB RESET.

Device address in DCFG register does not reset to zero,
which required to pass enumeration, after disconnect and
reconnect.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent 4a71fcb8

drivers/usb/dwc2/gadget.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -3573,6 +3573,9 @@ irq_retry:
		/* Report disconnection if it is not already done. */
		dwc2_hsotg_disconnect(hsotg);

		/* Reset device address to zero */
		__bic32(hsotg->regs + DCFG, DCFG_DEVADDR_MASK);

		if (usb_status & GOTGCTL_BSESVLD && connected)
		dwc2_hsotg_core_init_disconnected(hsotg, true);
		}

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