git.stricted.de - GitHub/mt8127/android_kernel_alcatel

author	Johan Hovold <johan@kernel.org>
	Fri, 6 Jan 2017 18:15:12 +0000 (19:15 +0100)
committer	Willy Tarreau <w@1wt.eu>
	Wed, 7 Jun 2017 22:46:55 +0000 (00:46 +0200)
commit	2c65c73aac7481085b0bcf51bd9327d4ea64a72e
tree	d5eed3c39b867bae919ff42632b4e38dbd8d34d4	tree \| snapshot (tar.gz zip)
parent	2563aee7a933557afbf9a40f7a6a82c6ae5ecca7	commit \| diff

USB: serial: ch341: fix modem-control and B0 handling

commit 030ee7ae52a46a2be52ccc8242c4a330aba8d38e upstream.

The modem-control signals are managed by the tty-layer during open and
should not be asserted prematurely when set_termios is called from
driver open.

Also make sure that the signals are asserted only when changing speed
from B0.

Fixes: 664d5df92e88 ("USB: usb-serial ch341: support for DTR/RTS/CTS")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>