Messages in this thread Patch in this message | | | From | John Stultz <> | Subject | [PATCH 2/3] usb: dwc2: Fix UDC state tracking | Date | Thu, 17 Aug 2017 12:03:14 -0700 |
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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.
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 Reported-by: Amit Pundir <amit.pundir@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org> --- drivers/usb/dwc2/gadget.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index c4066cd..e6f2cd8 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -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); } /** -- 2.7.4
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