serial: samsung: add support for manual RTS setting
The Samsung serial driver currently does not support setting the RTS pin with an ioctl(TIOCMSET) call. This patch adds this support. Changes in v2: - Preserve the RTS pin's manual setting in set_termios() also when enabling CRTSCTS. Signed-off-by: NJosé Miguel Gonçalves <jose.goncalves@inov.pt> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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