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| H A D | dwc2.c | 85bca00e1b569a6fc4cca3c6e2ec38d78c08c826 Sun Aug 18 08:55:28 UTC 2019 Michal Suchanek <msuchanek@suse.de> UPSTREAM: dwc2: use the nonblock argument in submit_int_msg
An USB 1.1 keyboard connected to dwc2 through a high-speed hub does not
report status until it changes. With this patch you can enable keyboard
by pressing a key while USB devices are probed. Without a keypress no
state is reported and the probe times out. We don't want to wait for a
keypress or timeout while polling for keypresses so implement an int_msg
nonblock variant that exits early on error.
Change-Id: I6d89952ca5c00a1b076ae3fe9d9632ebdc6af843
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 9dcab2c4d2cb50ab1864c818b82a72393c160236)
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