On Thu, Jun 16, 2016 at 9:24 PM, Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> wrote: > msm_set_termios() is called whenever the tty is opened. Setting the baud > rate requires a full reset of the msm serial block, even when the rate > is unchanged. In the case when the same uart is used as console this > reset will discard any console output data still being clocked out of > the TX fifo. > > By skipping the rate-change in the case where the baud rate is unchanged > since last request we can avoid the reset and the discarding of the > data. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Tested-by: Nicolas Dechesne <nicolas.dechesne@xxxxxxxxxx> I no longer see this type of corruption on serial console [ 6.325118] ALSA device �[ 6.333338] Freeing unused kernel memory: 572K (ffffffc000c10000 - ffffffc000c9f000) [ 13.800269] remoteproc2: remote processor a20400�[ OK ] Started Start the WCN core. [ � Starting Update UTMP about System Runlevel Changes... -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
