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

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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>
This commit is contained in:
Minas Harutyunyan 2017-07-11 14:25:13 +04:00 committed by Felipe Balbi
parent 4a71fcb8ac
commit 307bc11fcd
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/dwc2/gadget.c
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@ -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);
}