diff options
Diffstat (limited to 'drivers/tty/serial/meson_uart.c')
| -rw-r--r-- | drivers/tty/serial/meson_uart.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c index 6c365267e26a..b12a37bd37b6 100644 --- a/drivers/tty/serial/meson_uart.c +++ b/drivers/tty/serial/meson_uart.c @@ -237,8 +237,10 @@ static irqreturn_t meson_uart_interrupt(int irq, void *dev_id) if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_RX_EMPTY)) meson_receive_chars(port); - if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_FULL)) - meson_uart_start_tx(port); + if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_FULL)) { + if (readl(port->membase + AML_UART_CONTROL) & AML_UART_TX_INT_EN) + meson_uart_start_tx(port); + } spin_unlock(&port->lock); |