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serial: imx: preserve characters with parity or framing errors 

If IGNPAR/INPCK are clear in termios->c_iflag,  characters
received with parity or framing errors should be preserved
and passed to the upper layers of the tty stack.

Specifically, the decision of whether to set the character
value to zero should be made by n_tty.c/n_tty_receive_parity_error().

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Eric Nelson 2014-12-18 12:37:13 -07:00 committed by Greg Kroah-Hartman
parent b820cd7643
commit 8d267fd98b
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/imx.c
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@ -733,7 +733,7 @@ static irqreturn_t imx_rxint(int irq, void *dev_id)
continue;
}
rx &= sport->port.read_status_mask;
rx &= (sport->port.read_status_mask | 0xFF);
if (rx & URXD_BRK)
flg = TTY_BREAK;