Messages in this thread | | | From | Doug Anderson <> | Date | Wed, 8 Jun 2022 08:38:53 -0700 | Subject | Re: [PATCH 1/2] serial: core: Introduce callback for start_rx and do stop_rx in suspend only if this callback implementation is present. |
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Hi,
On Tue, Jun 7, 2022 at 11:53 AM Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com> wrote: > > In suspend sequence there is a need to perform stop_rx during suspend > sequence to prevent any asynchronous data over rx line. However this > can cause problem to drivers which dont do re-start_rx during set_termios. > > Add new callback start_rx and perform stop_rx only when implementation of > start_rx is present. Also add call to start_rx in resume sequence so that > drivers who come across this problem can make use of this framework. > > Fixes: c9d2325cdb92 ("serial: core: Do stop_rx in suspend path for console if console_suspend is disabled") > Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com> > --- > drivers/tty/serial/serial_core.c | 9 ++++++--- > include/linux/serial_core.h | 1 + > 2 files changed, 7 insertions(+), 3 deletions(-)
Reviewed-by: Douglas Anderson <dianders@chromium.org>
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