powerpc: Check device status before adding serial device
serial port nodes with the property status="disabled" are not usable and so
avoid adding "disabled" port with the system.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index c834757..2b97b80 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -330,9 +330,11 @@
if (!parent)
continue;
if (of_match_node(legacy_serial_parents, parent) != NULL) {
- index = add_legacy_soc_port(np, np);
- if (index >= 0 && np == stdout)
- legacy_serial_console = index;
+ if (of_device_is_available(np)) {
+ index = add_legacy_soc_port(np, np);
+ if (index >= 0 && np == stdout)
+ legacy_serial_console = index;
+ }
}
of_node_put(parent);
}