static void spi_clps711x_setup_mode(struct spi_device *spi)
{
/* Setup edge for transfer */
if (spi->mode & SPI_CPHA)
clps_writew(clps_readw(SYSCON3) | SYSCON3_ADCCKNSEN, SYSCON3);
else
clps_writew(clps_readw(SYSCON3) & ~SYSCON3_ADCCKNSEN, SYSCON3);
}
static irqreturn_t uart_clps711x_int_rx(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
struct tty_struct *tty = tty_port_tty_get(&port->state->port);
unsigned int status, ch, flg;
if (!tty)
return IRQ_HANDLED;
for (;;) {
status = clps_readl(SYSFLG(port));
if (status & SYSFLG_URXFE)
break;
ch = clps_readw(UARTDR(port));
status = ch & (UARTDR_FRMERR | UARTDR_PARERR | UARTDR_OVERR);
ch &= 0xff;
port->icount.rx++;
flg = TTY_NORMAL;
if (unlikely(status)) {
if (status & UARTDR_PARERR)
port->icount.parity++;
else if (status & UARTDR_FRMERR)
port->icount.frame++;
else if (status & UARTDR_OVERR)
port->icount.overrun++;
status &= port->read_status_mask;
if (status & UARTDR_PARERR)
flg = TTY_PARITY;
else if (status & UARTDR_FRMERR)
flg = TTY_FRAME;
else if (status & UARTDR_OVERR)
flg = TTY_OVERRUN;
}
if (uart_handle_sysrq_char(port, ch))
continue;
if (status & port->ignore_status_mask)
continue;
uart_insert_char(port, status, UARTDR_OVERR, ch, flg);
}
tty_flip_buffer_push(tty);
tty_kref_put(tty);
return IRQ_HANDLED;
}