[PATCH v3 2/3] serial: ns16550: Avoid probing hardware when disabled

When a serial port is marked as disabled, don't try to probe it, since it won't work and will probably hang.

Signed-off-by: Simon Glass sjg@chromium.org ---

(no changes since v1)

drivers/serial/ns16550.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 3f6860f3916..6576be4b58e 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -533,7 +533,8 @@ int ns16550_serial_probe(struct udevice *dev) reset_deassert_bulk(&reset_bulk);

com_port->plat = dev_get_plat(dev); - ns16550_init(com_port, -1); + if (!serial_is_disabled(dev)) + ns16550_init(com_port, -1);

return 0; }