[PATCH 1/2] [8250 Serial Driver]: Added support for 8250-class UARTs in HV Sistemas H8606 board

[Bryan Wu <cooloney@kernel.org>]

From: Javier Herrero <jherrero@hvsistemas.es>

Added support for 8250-class UARTs in HV Sistemas H8606 board,
modification in 8250.c driver for correct compilation with Blackfin

Besides, I think that there is more people using 8250-class UARTs
with a different hardware than the H8606 board. This code can be shared
by them.

Signed-off-by: Javier Herrero <jherrero@hvsistemas.es>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---
 drivers/serial/8250.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index a1ca9b7..d171561 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1548,6 +1548,10 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 		i->head = &up->list;
 		spin_unlock_irq(&i->lock);
 
+#ifdef SERIAL_EXTRA_IRQ_FLAGS
+		irq_flags |= SERIAL_EXTRA_IRQ_FLAGS;
+#endif
+
 		ret = request_irq(up->port.irq, serial8250_interrupt,
 				  irq_flags, "serial", i);
 		if (ret < 0)
-- 
1.5.5