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 <xuw...@hisilicon.com>
Cc: Guodong Xu <guodong...@linaro.org>
Cc: Amit Pundir <amit.pun...@linaro.org>
Cc: YongQin Liu <yongqin....@linaro.org>
Cc: John Youn <johny...@synopsys.com>
Cc: Minas Harutyunyan <minas.harutyun...@synopsys.com>
Cc: Douglas Anderson <diand...@chromium.org>
Cc: Chen Yu <cheny...@huawei.com>
Cc: Felipe Balbi <felipe.ba...@linux.intel.com>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Reported-by: Amit Pundir <amit.pun...@linaro.org>
Signed-off-by: John Stultz <john.stu...@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 7fd0e38..603c216 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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