static void serial8250_shutdown(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
unsigned long flags;
/*
* Disable interrupts from this port
*/
up->ier = 0;
serial_outp(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
if (up->port.flags & UPF_FOURPORT) {
/* reset interrupts on the AST Fourport board */
inb((up->port.iobase & 0xfe0) | 0x1f);
up->port.mctrl |= TIOCM_OUT1;
} else
up->port.mctrl &= ~TIOCM_OUT2;
serial8250_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_inp(up, UART_LCR) & ~UART_LCR_SBC);
serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO |
UART_FCR_CLEAR_RCVR |
UART_FCR_CLEAR_XMIT);
serial_outp(up, UART_FCR, 0);
/*
* Read data port to reset things, and then unlink from
* the IRQ chain.
*/
(void) serial_in(up, UART_RX);
if (!is_real_interrupt(up->port.irq))
del_timer_sync(&up->timer);
else
serial_unlink_irq_chain(up);
}
static void m32r_sio_shutdown(struct uart_port *port)
{
struct uart_sio_port *up =
container_of(port, struct uart_sio_port, port);
/*
* Disable interrupts from this port
*/
up->ier = 0;
sio_out(up, SIOTRCR, 0);
/*
* Disable break condition and FIFOs
*/
sio_init();
if (!up->port.irq)
del_timer_sync(&up->timer);
else
serial_unlink_irq_chain(up);
}