diff options
Diffstat (limited to 'drivers/tty/serial/lpc32xx_hs.c')
| -rw-r--r-- | drivers/tty/serial/lpc32xx_hs.c | 33 |
1 files changed, 4 insertions, 29 deletions
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c index ed47f4768338..b38fe4728c26 100644 --- a/drivers/tty/serial/lpc32xx_hs.c +++ b/drivers/tty/serial/lpc32xx_hs.c @@ -276,8 +276,6 @@ static void __serial_lpc32xx_rx(struct uart_port *port) tty_flip_buffer_push(tport); } -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)); @@ -287,34 +285,11 @@ static bool serial_lpc32xx_tx_ready(struct uart_port *port) static void __serial_lpc32xx_tx(struct uart_port *port) { - struct circ_buf *xmit = &port->state->xmit; - - if (port->x_char) { - writel((u32)port->x_char, LPC32XX_HSUART_FIFO(port->membase)); - port->icount.tx++; - port->x_char = 0; - return; - } - - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) - goto exit_tx; - - /* Transfer data */ - 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); - port->icount.tx++; - if (uart_circ_empty(xmit)) - break; - } - - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) - uart_write_wakeup(port); + u8 ch; -exit_tx: - if (uart_circ_empty(xmit)) - serial_lpc32xx_stop_tx(port); + uart_port_tx(port, ch, + serial_lpc32xx_tx_ready(port), + writel(ch, LPC32XX_HSUART_FIFO(port->membase))); } static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id) |