diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_dma.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dma.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c index bfa1a857f3ff..890fa7ddaa7f 100644 --- a/drivers/tty/serial/8250/8250_dma.c +++ b/drivers/tty/serial/8250/8250_dma.c @@ -34,10 +34,8 @@ static void __dma_tx_complete(void *param) uart_write_wakeup(&p->port); ret = serial8250_tx_dma(p); - if (ret) { - p->ier |= UART_IER_THRI; - serial_port_out(&p->port, UART_IER, p->ier); - } + if (ret) + serial8250_set_THRI(p); spin_unlock_irqrestore(&p->port.lock, flags); } @@ -100,10 +98,7 @@ int serial8250_tx_dma(struct uart_8250_port *p) dma_async_issue_pending(dma->txchan); if (dma->tx_err) { dma->tx_err = 0; - if (p->ier & UART_IER_THRI) { - p->ier &= ~UART_IER_THRI; - serial_out(p, UART_IER, p->ier); - } + serial8250_clear_THRI(p); } return 0; err: |