From mboxrd@z Thu Jan 1 00:00:00 1970 From: weo@reccoware.de (Wolfgang Ocker) Date: Tue, 15 Nov 2016 12:05:29 +0100 Subject: [PATCH] mxs-auart: count FIFO overrun errors Message-ID: <1479207929.4985.25.camel@reccoware.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The mxs-auart driver does not count FIFO overrun errors. These errors never appear in /proc/tty/driver/ttyAPP. This is because the OERR status bit is masked by read_status_mask in the rx interrupt function, but the AUART_STAT_OERR bit is never set in read_status_mask. The patch enables the counting of overrun errors. Signed-off-by: Wolfgang Ocker --- ?drivers/tty/serial/mxs-auart.c | 2 +- ?1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 770454e0dfa3..8c1c9112b3fd 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -1016,7 +1016,7 @@ static void mxs_auart_settermios(struct uart_port *u, ? ctrl |= AUART_LINECTRL_EPS; ? } ? - u->read_status_mask = 0; + u->read_status_mask = AUART_STAT_OERR; ? ? if (termios->c_iflag & INPCK) ? u->read_status_mask |= AUART_STAT_PERR; --? 2.10.0