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[PATCH 1/3] tty: of_serial: allow rt288x-uart to load from OF

To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 1/3] tty: of_serial: allow rt288x-uart to load from OF
From: John Crispin <blogic@openwrt.org>
Date: Sat, 13 Apr 2013 11:33:36 +0200
Cc: linux-mips@linux-mips.org, linux-serial@vger.kernel.org, John Crispin <blogic@openwrt.org>
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In order to make serial_8250 loadable via OF on Ralink WiSoC we need to default
the iotype to UPIO_RT.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/tty/serial/of_serial.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index b025d54..42f8550 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -98,7 +98,10 @@ static int of_platform_serial_setup(struct platform_device 
*ofdev,
                port->regshift = prop;
 
        port->irq = irq_of_parse_and_map(np, 0);
-       port->iotype = UPIO_MEM;
+       if (of_device_is_compatible(np, "ralink,rt2880-uart"))
+               port->iotype = UPIO_AU;
+       else
+               port->iotype = UPIO_MEM;
        if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
                switch (prop) {
                case 1:
-- 
1.7.10.4


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