dm: ns16550: Correct the probe logic for platform data

The probe logic sets up the pointer to the platform data in the device
tree decode method. It should be done in the probe() method, and anyway
the device tree decode method can't be used when CONFIG_OF_CONTROL is
not enabled.

Fix these two problems.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NTom Rini <trini@ti.com>

drivers/serial/ns16550.c

@@ -276,14 +276,15 @@ int ns16550_serial_probe(struct udevice *dev)
 {
 	struct NS16550 *const com_port = dev_get_priv(dev);
 
+	com_port->plat = dev_get_platdata(dev);
 	NS16550_init(com_port, -1);
 
 	return 0;
 }
 
+#ifdef CONFIG_OF_CONTROL
 int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 {
-	struct NS16550 *const com_port = dev_get_priv(dev);
 	struct ns16550_platdata *plat = dev->platdata;
 	fdt_addr_t addr;
 
@@ -294,10 +295,10 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 	plat->base = addr;
 	plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
 					 "reg-shift", 1);
-	com_port->plat = plat;
 
 	return 0;
 }
+#endif
 
 const struct dm_serial_ops ns16550_serial_ops = {
 	.putc = ns16550_serial_putc,