4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: John Stultz <[email protected]> [ Upstream commit ce2b21a4e5ce042c0a42c9db8fa9e0f849427d5e ] 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 <[email protected]> Cc: Guodong Xu <[email protected]> Cc: Amit Pundir <[email protected]> Cc: YongQin Liu <[email protected]> Cc: John Youn <[email protected]> Cc: Minas Harutyunyan <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Chen Yu <[email protected]> Cc: Felipe Balbi <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: [email protected] Acked-by: Minas Harutyunyan <[email protected]> Tested-by: Minas Harutyunyan <[email protected]> Reported-by: Amit Pundir <[email protected]> Signed-off-by: John Stultz <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/dwc2/gadget.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3202,6 +3202,8 @@ void dwc2_hsotg_disconnect(struct dwc2_h call_gadget(hsotg, disconnect); hsotg->lx_state = DWC2_L3; + + usb_gadget_set_state(&hsotg->gadget, USB_STATE_NOTATTACHED); } /**
