diff options
Diffstat (limited to 'drivers/tty/serial/sprd_serial.c')
| -rw-r--r-- | drivers/tty/serial/sprd_serial.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c index 342a87967631..3f34f7bb7700 100644 --- a/drivers/tty/serial/sprd_serial.c +++ b/drivers/tty/serial/sprd_serial.c @@ -626,35 +626,12 @@ static inline void sprd_rx(struct uart_port *port) static inline void sprd_tx(struct uart_port *port) { - struct circ_buf *xmit = &port->state->xmit; - int count; - - if (port->x_char) { - serial_out(port, SPRD_TXD, port->x_char); - port->icount.tx++; - port->x_char = 0; - return; - } - - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { - sprd_stop_tx(port); - return; - } - - count = THLD_TX_EMPTY; - do { - serial_out(port, SPRD_TXD, xmit->buf[xmit->tail]); - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - port->icount.tx++; - if (uart_circ_empty(xmit)) - break; - } while (--count > 0); - - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) - uart_write_wakeup(port); + u8 ch; - if (uart_circ_empty(xmit)) - sprd_stop_tx(port); + uart_port_tx_limited(port, ch, THLD_TX_EMPTY, + true, + serial_out(port, SPRD_TXD, ch), + ({})); } /* this handles the interrupt from one port */ |