struct uart_8250_dma *dma = p->dma;
struct circ_buf *xmit = &p->port.state->xmit;
struct dma_async_tx_descriptor *desc;
+ struct uart_port *up = &p->port;
int ret;
- if (dma->tx_running)
+ if (dma->tx_running) {
+ if (up->x_char) {
+ dmaengine_pause(dma->txchan);
+ uart_xchar_out(up, UART_TX);
+ dmaengine_resume(dma->txchan);
+ }
return 0;
+ } else if (up->x_char) {
+ uart_xchar_out(up, UART_TX);
+ }
if (uart_tx_stopped(&p->port) || uart_circ_empty(xmit)) {
/* We have been called from __dma_tx_complete() */