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Commit ce2b21a4 authored by John Stultz's avatar John Stultz Committed by Felipe Balbi
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usb: dwc2: Fix UDC state tracking 



It has been noticed that the dwc2 udc state reporting doesn't
seem to work (at least on HiKey boards). Where after the initial
setup, the sysfs /sys/class/udc/f72c0000.usb/state file would
report "configured" no matter the state of the OTG port.

This patch adds a call so that we report to the UDC layer when
the gadget device is disconnected.

This patch does depend on the previous patch ("usb: dwc2:
Improve gadget state disconnection handling") in this patch set
in order to properly work.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Acked-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Tested-by: default avatarMinas Harutyunyan <hminas@synopsys.com>
Reported-by: default avatarAmit Pundir <amit.pundir@linaro.org>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 9b481092

drivers/usb/dwc2/gadget.c

+2 −0
Original line number Diff line number Diff line
@@ -3202,6 +3202,8 @@ void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg) 


	call_gadget(hsotg, disconnect);

	hsotg->lx_state = DWC2_L3;



	usb_gadget_set_state(&hsotg->gadget, USB_STATE_NOTATTACHED);

}



/**