Function regulator_check_parent

components/drivers/regulator/regulator.c:505–543

}

static void regulator_check_parent(struct rt_regulator_node *reg_np)
{
    if (reg_np->parent)
    {
        return;
    }
    else
    {
    #ifdef RT_USING_OFW
        rt_phandle parent_phandle = 0;
        struct rt_ofw_node *np = reg_np->dev->ofw_node;

        while (np)
        {
            if (rt_ofw_prop_read_u32(np, "vin-supply", &parent_phandle))
            {
                break;
            }

            if (!(np = rt_ofw_find_node_by_phandle(parent_phandle)))
            {
                break;
            }

            if (!(reg_np->parent = rt_ofw_data(np)))
            {
                LOG_W("%s parent ofw node = %s not init",
                        reg_np->supply_name, rt_ofw_node_full_name(np));

                rt_ofw_node_put(np);
                break;
            }

            rt_list_insert_after(&reg_np->parent->children_nodes, &reg_np->list);
            rt_ofw_node_put(np);
        }
    #endif
    }
}

struct rt_regulator *rt_regulator_get(struct rt_device *dev, const char *id)
{