diff options
Diffstat (limited to 'drivers/tty/serial/sc16is7xx.c')
| -rw-r--r-- | drivers/tty/serial/sc16is7xx.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index c7435595dce1..f6ccb1dd216b 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -817,6 +817,8 @@ static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) if (rxlen) sc16is7xx_handle_rx(port, rxlen, iir); + else + rc = false; break; /* CTSRTS interrupt comes only when CTS goes inactive */ case SC16IS7XX_IIR_CTSRTS_SRC: @@ -1205,6 +1207,9 @@ static int sc16is7xx_startup(struct uart_port *port) SC16IS7XX_IER_MSI_BIT; sc16is7xx_port_write(port, SC16IS7XX_IER_REG, val); + /* Initialize the Modem Control signals to current status */ + one->old_mctrl = sc16is7xx_get_hwmctrl(port); + /* Enable modem status polling */ uart_port_lock_irqsave(port, &flags); sc16is7xx_enable_ms(port); |