static int environment_probe(struct device_d *dev) { char *path; int ret; ret = of_find_path(dev->device_node, "device-path", &path, OF_FIND_PATH_FLAGS_BB); if (ret) return ret; dev_info(dev, "setting default environment path to %s\n", path); default_environment_path_set(path); return 0; }
static int art_probe(struct device_d *dev) { char *path; int ret; dev_dbg(dev, "found ART partition\n"); ret = of_find_path(dev->device_node, "device-path", &path, 0); if (ret) { dev_err(dev, "can't find path\n"); return ret; } return art_read_mac(dev, path); }
static int state_probe(struct device_d *dev) { struct device_node *np = dev->device_node; struct device_node *partition_node; struct state *state; const char *alias; const char *backend_type = NULL; int len, ret; const char *of_path; char *path; if (!np) return -EINVAL; alias = of_alias_get(np); if (!alias) alias = np->name; state = state_new_from_node(alias, np); if (IS_ERR(state)) return PTR_ERR(state); of_path = of_get_property(np, "backend", &len); if (!of_path) { ret = -ENODEV; goto out_release; } /* guess if of_path is a path, not a phandle */ if (of_path[0] == '/' && len > 1) { ret = of_find_path(np, "backend", &path, 0); } else { partition_node = of_parse_phandle(np, "backend", 0); if (!partition_node) return -EINVAL; of_path = partition_node->full_name; ret = of_find_path_by_node(partition_node, &path, 0); } if (ret == -ENODEV) ret = -EPROBE_DEFER; if (ret) goto out_release; ret = of_property_read_string(np, "backend-type", &backend_type); if (ret) { goto out_free; } else if (!strcmp(backend_type, "raw")) { ret = state_backend_raw_file(state, of_path, path, 0, 0); } else if (!strcmp(backend_type, "dtb")) { ret = state_backend_dtb_file(state, of_path, path); } else { dev_warn(dev, "invalid backend type: %s\n", backend_type); ret = -ENODEV; goto out_free; } if (ret) goto out_free; dev_info(dev, "backend: %s, path: %s, of_path: %s\n", backend_type, path, of_path); free(path); return 0; out_free: free(path); out_release: state_release(state); return ret; }