Commit b8106454 authored Nov 16, 2016 by Wolfgang Ocker Committed by Greg Kroah-Hartman Nov 16, 2016

mxs-auart: count FIFO overrun errors



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 <weo@reccoware.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0e0b989e

drivers/tty/serial/mxs-auart.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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