1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index e33d38cb170f..61ecd709a722 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2670,6 +2670,10 @@ static void serial8250_config_port(struct uart_port *port, int flags)
         if (port->type == PORT_16550A && port->iotype == UPIO_AU)
                 up->bugs |= UART_BUG_NOMSR;
 
+        /* HW bugs may trigger IRQ while IIR == NO_INT */
+        if (port->type == PORT_TEGRA)
+                up->bugs |= UART_BUG_NOMSR;
+
         if (port->type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
                 autoconfig_irq(up);