Esempio n. 1
0
int pmic_bind_children(struct udevice *pmic, ofnode parent,
		       const struct pmic_child_info *child_info)
{
	const struct pmic_child_info *info;
	struct driver *drv;
	struct udevice *child;
	const char *node_name;
	int bind_count = 0;
	ofnode node;
	int prefix_len;
	int ret;

	debug("%s for '%s' at node offset: %d\n", __func__, pmic->name,
	      dev_of_offset(pmic));

	ofnode_for_each_subnode(node, parent) {
		node_name = ofnode_get_name(node);

		debug("* Found child node: '%s'\n", node_name);

		child = NULL;
		for (info = child_info; info->prefix && info->driver; info++) {
			debug("  - compatible prefix: '%s'\n", info->prefix);

			prefix_len = strlen(info->prefix);
			if (strncmp(info->prefix, node_name, prefix_len))
				continue;

			drv = lists_driver_lookup_name(info->driver);
			if (!drv) {
				debug("  - driver: '%s' not found!\n",
				      info->driver);
				continue;
			}

			debug("  - found child driver: '%s'\n", drv->name);

			ret = device_bind_with_driver_data(pmic, drv, node_name,
							   0, node, &child);
			if (ret) {
				debug("  - child binding error: %d\n", ret);
				continue;
			}

			debug("  - bound child device: '%s'\n", child->name);

			child->driver_data = trailing_strtol(node_name);

			debug("  - set 'child->driver_data': %lu\n",
			      child->driver_data);
			break;
		}

		if (child)
			bind_count++;
		else
			debug("  - compatible prefix not found\n");
	}
Esempio n. 2
0
int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
		   struct udevice **devp)
{
	struct driver *driver = ll_entry_start(struct driver, driver);
	const int n_ents = ll_entry_count(struct driver, driver);
	const struct udevice_id *id;
	struct driver *entry;
	struct udevice *dev;
	bool found = false;
	const char *name;
	int result = 0;
	int ret = 0;

	dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
	if (devp)
		*devp = NULL;
	for (entry = driver; entry != driver + n_ents; entry++) {
		ret = driver_check_compatible(blob, offset, entry->of_match,
					      &id);
		name = fdt_get_name(blob, offset, NULL);
		if (ret == -ENOENT) {
			continue;
		} else if (ret == -ENODEV) {
			dm_dbg("Device '%s' has no compatible string\n", name);
			break;
		} else if (ret) {
			dm_warn("Device tree error at offset %d\n", offset);
			result = ret;
			break;
		}

		dm_dbg("   - found match at '%s'\n", entry->name);
		ret = device_bind_with_driver_data(parent, entry, name,
						   id->data, offset, &dev);
		if (ret == -ENODEV) {
			dm_dbg("Driver '%s' refuses to bind\n", entry->name);
			continue;
		}
		if (ret) {
			dm_warn("Error binding driver '%s': %d\n", entry->name,
				ret);
			return ret;
		} else {
			found = true;
			if (devp)
				*devp = dev;
		}
		break;
	}

	if (!found && !result && ret != -ENODEV) {
		dm_dbg("No match for node '%s'\n",
		       fdt_get_name(blob, offset, NULL));
	}

	return result;
}