diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/tty/serial/lpc32xx_hs.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c index 93140cac1ca1..ed47f4768338 100644 --- a/drivers/tty/serial/lpc32xx_hs.c +++ b/drivers/tty/serial/lpc32xx_hs.c @@ -278,6 +278,13 @@ static void __serial_lpc32xx_rx(struct uart_port *port) static void serial_lpc32xx_stop_tx(struct uart_port *port); +static bool serial_lpc32xx_tx_ready(struct uart_port *port) +{ + u32 level = readl(LPC32XX_HSUART_LEVEL(port->membase)); + + return LPC32XX_HSU_TX_LEV(level) < 64; +} + static void __serial_lpc32xx_tx(struct uart_port *port) { struct circ_buf *xmit = &port->state->xmit; @@ -293,8 +300,7 @@ static void __serial_lpc32xx_tx(struct uart_port *port) goto exit_tx; /* Transfer data */ - while (LPC32XX_HSU_TX_LEV(readl( - LPC32XX_HSUART_LEVEL(port->membase))) < 64) { + while (serial_lpc32xx_tx_ready(port)) { writel((u32) xmit->buf[xmit->tail], LPC32XX_HSUART_FIFO(port->membase)); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); @@ -493,7 +499,7 @@ static void serial_lpc32xx_shutdown(struct uart_port *port) /* port->lock is not held. */ static void serial_lpc32xx_set_termios(struct uart_port *port, struct ktermios *termios, - struct ktermios *old) + const struct ktermios *old) { unsigned long flags; unsigned int baud, quot; |