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serial: sirf: add uart receive's some error counter and mark 

add overrun error's flag mark and parity's counter, we can show the
statistic from procfs node.

BTW, let the indentation of stick bits configuration look better.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qipan Li 2015-05-14 06:45:24 +00:00 committed by Greg Kroah-Hartman
parent 36c0991089
commit d9e8e976fa
1 changed files with 10 additions and 5 deletions
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15
drivers/tty/serial/sirfsoc_uart.c
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@ -606,14 +606,18 @@ static irqreturn_t sirfsoc_uart_isr(int irq, void *dev_id)
if (uart_handle_break(port))
goto recv_char;
}
if (intr_status & uint_st->sirfsoc_rx_oflow)
if (intr_status & uint_st->sirfsoc_rx_oflow) {
port->icount.overrun++;
flag = TTY_OVERRUN;
}
if (intr_status & uint_st->sirfsoc_frm_err) {
port->icount.frame++;
flag = TTY_FRAME;
}
if (intr_status & uint_st->sirfsoc_parity_err)
if (intr_status & uint_st->sirfsoc_parity_err) {
port->icount.parity++;
flag = TTY_PARITY;
}
wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_RESET);
wr_regl(port, ureg->sirfsoc_rx_fifo_op, 0);
wr_regl(port, ureg->sirfsoc_rx_fifo_op, SIRFUART_FIFO_START);
@ -932,10 +936,11 @@ static void sirfsoc_uart_set_termios(struct uart_port *port,
config_reg |= SIRFUART_STICK_BIT_MARK;
else
config_reg |= SIRFUART_STICK_BIT_SPACE;
} else if (termios->c_cflag & PARODD) {
config_reg |= SIRFUART_STICK_BIT_ODD;
} else {
config_reg |= SIRFUART_STICK_BIT_EVEN;
if (termios->c_cflag & PARODD)
config_reg |= SIRFUART_STICK_BIT_ODD;
else
config_reg |= SIRFUART_STICK_BIT_EVEN;
}
}
} else {