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path: root/drivers/tty/serial/8250/8250_omap.c
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Diffstat (limited to 'drivers/tty/serial/8250/8250_omap.c')
-rw-r--r--drivers/tty/serial/8250/8250_omap.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 826c5c4a2103..a2c0734c76e2 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -439,7 +439,6 @@ static void omap_8250_set_termios(struct uart_port *port,
priv->xoff = termios->c_cc[VSTOP];
priv->efr = 0;
- up->mcr &= ~(UART_MCR_RTS | UART_MCR_XONANY);
up->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS | UPSTAT_AUTOXOFF);
if (termios->c_cflag & CRTSCTS && up->port.flags & UPF_HARD_FLOW) {
@@ -726,6 +725,7 @@ static void __dma_rx_do_complete(struct uart_8250_port *p, bool error)
struct dma_tx_state state;
int count;
unsigned long flags;
+ int ret;
dma_sync_single_for_cpu(dma->rxchan->device->dev, dma->rx_addr,
dma->rx_size, DMA_FROM_DEVICE);
@@ -741,8 +741,10 @@ static void __dma_rx_do_complete(struct uart_8250_port *p, bool error)
count = dma->rx_size - state.residue;
- tty_insert_flip_string(tty_port, dma->rx_buf, count);
- p->port.icount.rx += count;
+ ret = tty_insert_flip_string(tty_port, dma->rx_buf, count);
+
+ p->port.icount.rx += ret;
+ p->port.icount.buf_overrun += count - ret;
unlock:
spin_unlock_irqrestore(&priv->rx_dma_lock, flags);