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mxs-auart: count FIFO overrun errors

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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 <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Wolfgang Ocker 2016-11-16 12:37:45 +01:00 • committed by Greg Kroah-Hartman
commit b810645473
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/mxs-auart.c
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@ -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;