consumers[i].consumer = NULL;
for (i = 0; i < num_consumers; i++) {
- consumers[i].consumer = devm_regulator_get(dev,
- consumers[i].supply);
+ consumers[i].consumer = _devm_regulator_get(dev,
+ consumers[i].supply,
+ consumers[i].optional ?
+ OPTIONAL_GET :
+ NORMAL_GET);
if (IS_ERR(consumers[i].consumer)) {
ret = PTR_ERR(consumers[i].consumer);
dev_err(dev, "Failed to get supply '%s': %d\n",
WARN_ON(rc);
}
EXPORT_SYMBOL_GPL(devm_regulator_unregister);
+
+struct regulator_supply_alias_match {
+ struct device *dev;
+ const char *id;
+};
+
+static int devm_regulator_match_supply_alias(struct device *dev, void *res,
+ void *data)
+{
+ struct regulator_supply_alias_match *match = res;
+ struct regulator_supply_alias_match *target = data;
+
+ return match->dev == target->dev && strcmp(match->id, target->id) == 0;
+}
+
+static void devm_regulator_destroy_supply_alias(struct device *dev, void *res)
+{
+ struct regulator_supply_alias_match *match = res;
+
+ regulator_unregister_supply_alias(match->dev, match->id);
+}
+
+/**
+ * devm_regulator_register_supply_alias - Resource managed
+ * regulator_register_supply_alias()
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: Supply name or regulator ID that should be used to lookup the
+ * supply
+ *
+ * The supply alias will automatically be unregistered when the source
+ * device is unbound.
+ */
+int devm_regulator_register_supply_alias(struct device *dev, const char *id,
+ struct device *alias_dev,
+ const char *alias_id)
+{
+ struct regulator_supply_alias_match *match;
+ int ret;
+
+ match = devres_alloc(devm_regulator_destroy_supply_alias,
+ sizeof(struct regulator_supply_alias_match),
+ GFP_KERNEL);
+ if (!match)
+ return -ENOMEM;
+
+ match->dev = dev;
+ match->id = id;
+
+ ret = regulator_register_supply_alias(dev, id, alias_dev, alias_id);
+ if (ret < 0) {
+ devres_free(match);
+ return ret;
+ }
+
+ devres_add(dev, match);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register_supply_alias);
+
+/**
+ * devm_regulator_unregister_supply_alias - Resource managed
+ * regulator_unregister_supply_alias()
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ *
+ * Unregister an alias registered with
+ * devm_regulator_register_supply_alias(). Normally this function
+ * will not need to be called and the resource management code
+ * will ensure that the resource is freed.
+ */
+void devm_regulator_unregister_supply_alias(struct device *dev, const char *id)
+{
+ struct regulator_supply_alias_match match;
+ int rc;
+
+ match.dev = dev;
+ match.id = id;
+
+ rc = devres_release(dev, devm_regulator_destroy_supply_alias,
+ devm_regulator_match_supply_alias, &match);
+ if (rc != 0)
+ WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister_supply_alias);
+
+/**
+ * devm_regulator_bulk_register_supply_alias - Managed register
+ * multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: List of supply names or regulator IDs that should be used to
+ * lookup the supply
+ * @num_id: Number of aliases to register
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to register several supply
+ * aliases in one operation, the aliases will be automatically
+ * unregisters when the source device is unbound. If any of the
+ * aliases cannot be registered any aliases that were registered
+ * will be removed before returning to the caller.
+ */
+int devm_regulator_bulk_register_supply_alias(struct device *dev,
+ const char *const *id,
+ struct device *alias_dev,
+ const char *const *alias_id,
+ int num_id)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < num_id; ++i) {
+ ret = devm_regulator_register_supply_alias(dev, id[i],
+ alias_dev,
+ alias_id[i]);
+ if (ret < 0)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ dev_err(dev,
+ "Failed to create supply alias %s,%s -> %s,%s\n",
+ id[i], dev_name(dev), alias_id[i], dev_name(alias_dev));
+
+ while (--i >= 0)
+ devm_regulator_unregister_supply_alias(dev, id[i]);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_register_supply_alias);
+
+/**
+ * devm_regulator_bulk_unregister_supply_alias - Managed unregister
+ * multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @num_id: Number of aliases to unregister
+ *
+ * Unregister aliases registered with
+ * devm_regulator_bulk_register_supply_alias(). Normally this function
+ * will not need to be called and the resource management code
+ * will ensure that the resource is freed.
+ */
+void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
+ const char *const *id,
+ int num_id)
+{
+ int i;
+
+ for (i = 0; i < num_id; ++i)
+ devm_regulator_unregister_supply_alias(dev, id[i]);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_unregister_supply_alias);
+
+struct regulator_notifier_match {
+ struct regulator *regulator;
+ struct notifier_block *nb;
+};
+
+static int devm_regulator_match_notifier(struct device *dev, void *res,
+ void *data)
+{
+ struct regulator_notifier_match *match = res;
+ struct regulator_notifier_match *target = data;
+
+ return match->regulator == target->regulator && match->nb == target->nb;
+}
+
+static void devm_regulator_destroy_notifier(struct device *dev, void *res)
+{
+ struct regulator_notifier_match *match = res;
+
+ regulator_unregister_notifier(match->regulator, match->nb);
+}
+
+/**
+ * devm_regulator_register_notifier - Resource managed
+ * regulator_register_notifier
+ *
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * The notifier will be registers under the consumer device and be
+ * automatically be unregistered when the source device is unbound.
+ */
+int devm_regulator_register_notifier(struct regulator *regulator,
+ struct notifier_block *nb)
+{
+ struct regulator_notifier_match *match;
+ int ret;
+
+ match = devres_alloc(devm_regulator_destroy_notifier,
+ sizeof(struct regulator_notifier_match),
+ GFP_KERNEL);
+ if (!match)
+ return -ENOMEM;
+
+ match->regulator = regulator;
+ match->nb = nb;
+
+ ret = regulator_register_notifier(regulator, nb);
+ if (ret < 0) {
+ devres_free(match);
+ return ret;
+ }
+
+ devres_add(regulator->dev, match);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register_notifier);
+
+/**
+ * devm_regulator_unregister_notifier - Resource managed
+ * regulator_unregister_notifier()
+ *
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * Unregister a notifier registered with devm_regulator_register_notifier().
+ * Normally this function will not need to be called and the resource
+ * management code will ensure that the resource is freed.
+ */
+void devm_regulator_unregister_notifier(struct regulator *regulator,
+ struct notifier_block *nb)
+{
+ struct regulator_notifier_match match;
+ int rc;
+
+ match.regulator = regulator;
+ match.nb = nb;
+
+ rc = devres_release(regulator->dev, devm_regulator_destroy_notifier,
+ devm_regulator_match_notifier, &match);
+ if (rc != 0)
+ WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister_notifier);
projects / firefly-linux-kernel-4.4.55.git / blobdiff