[U-Boot] [PATCH 5/9] serial: s5p: get the port id number from the alias of the device node

[Thomas Abraham <ta.omasab@gmail.com>]

From: Thomas Abraham <thomas.ab@samsung.com>

The port id, if not specified in the device node, can be obtained from
the alias of the device node listed in the aliases node.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
---
 drivers/serial/serial_s5p.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
index feba467..038d9b6 100644
--- a/drivers/serial/serial_s5p.c
+++ b/drivers/serial/serial_s5p.c
@@ -175,6 +175,8 @@ static int s5p_serial_ofdata_to_platdata(struct udevice *dev)
 
 	plat->reg = (struct s5p_uart *)addr;
 	plat->port_id = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "id", -1);
+	if (plat->port_id == -1)
+		plat->port_id = dev->seq;
 
 	return 0;
 }
-- 
1.6.6.rc2