diff options
| -rw-r--r-- | drivers/tty/serial/8250.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index cff03e5c331..33601f891fd 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -2701,6 +2701,10 @@ static void serial8250_config_port(struct uart_port *port, int flags) if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU) up->bugs |= UART_BUG_NOMSR; + /* HW bugs may trigger IRQ while IIR == NO_INT */ + if (up->port.type == PORT_TEGRA) + up->bugs |= UART_BUG_NOMSR; + if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ) autoconfig_irq(up); |