/**
* dtbocfg_overlay_create() - Create Device Tree Overlay
* @overlay: Pointer to Device Tree Overlay Item
* return Success(0) or Error Status.
*/
static int dtbocfg_overlay_item_create(struct dtbocfg_overlay_item *overlay)
{
int ret_val;
of_fdt_unflatten_tree(overlay->dtbo, &overlay->node);
if (overlay->node == NULL) {
pr_err("%s: failed to unflatten tree\n", __func__);
ret_val = -EINVAL;
goto failed;
}
pr_debug("%s: unflattened OK\n", __func__);
of_node_set_flag(overlay->node, OF_DETACHED);
ret_val = of_resolve_phandles(overlay->node);
if (ret_val != 0) {
pr_err("%s: Failed to resolve tree\n", __func__);
goto failed;
}
pr_debug("%s: resolved OK\n", __func__);
ret_val = of_overlay_create(overlay->node);
if (ret_val < 0) {
pr_err("%s: Failed to create overlay (ret_val=%d)\n", __func__, ret_val);
goto failed;
}
overlay->id = ret_val;
pr_debug("%s: create OK\n", __func__);
return 0;
failed:
return ret_val;
}
for_each_child_of_node(overlay, fragment) {
prop = of_find_property(fragment, "target-path", NULL);
if (!prop)
continue;
if (!strncmp("i2c", (char *)prop->value, prop->length))
if (tilcdc_prop_str_update(prop, i2c->full_name, &kft))
goto out;
if (!strncmp("lcdc", (char *)prop->value, prop->length))
if (tilcdc_prop_str_update(prop, lcdc->full_name, &kft))
goto out;
}
tilcdc_node_disable(slave);
ret = of_overlay_create(overlay);
if (ret)
pr_err("%s: Creating overlay failed: %d\n", __func__, ret);
else
pr_info("%s: ti,tilcdc,slave node successfully converted\n",
__func__);
out:
kfree_table_free(&kft);
of_node_put(i2c);
of_node_put(slave);
of_node_put(lcdc);
of_node_put(fragment);
}
static int __init tilcdc_slave_compat_init(void)
{
