memory: fsl_ifc: populate child devices without relying on simple-bus

After we update the binding to not use simple-bus compatible for the
controller, we need the driver to populate the child devices explicitly.
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Link: https://lore.kernel.org/r/20211116211846.16335-3-leoyang.li@nxp.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

drivers/memory/fsl_ifc.c

@@ -88,6 +88,7 @@ static int fsl_ifc_ctrl_remove(struct platform_device *dev)
 {
 	struct fsl_ifc_ctrl *ctrl = dev_get_drvdata(&dev->dev);
 
+	of_platform_depopulate(&dev->dev);
 	free_irq(ctrl->nand_irq, ctrl);
 	free_irq(ctrl->irq, ctrl);
 
@@ -285,8 +286,16 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 		}
 	}
 
+	/* legacy dts may still use "simple-bus" compatible */
+	ret = of_platform_populate(dev->dev.of_node, NULL, NULL,
+					&dev->dev);
+	if (ret)
+		goto err_free_nandirq;
+
 	return 0;
 
+err_free_nandirq:
+	free_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_ctrl_dev);
 err_free_irq:
 	free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev);
 err_unmap_nandirq: