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Merge remote-tracking branch 'regulator/topic/dt-cb' into regulator-next
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commit
fca8e13f50
@ -3561,7 +3561,7 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
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/**
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* regulator_register - register regulator
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* @regulator_desc: regulator to register
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* @config: runtime configuration for regulator
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* @cfg: runtime configuration for regulator
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*
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* Called by regulator drivers to register a regulator.
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* Returns a valid pointer to struct regulator_dev on success
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@ -3569,20 +3569,21 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
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*/
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struct regulator_dev *
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regulator_register(const struct regulator_desc *regulator_desc,
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const struct regulator_config *config)
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const struct regulator_config *cfg)
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{
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const struct regulation_constraints *constraints = NULL;
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const struct regulator_init_data *init_data;
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struct regulator_config *config = NULL;
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static atomic_t regulator_no = ATOMIC_INIT(-1);
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struct regulator_dev *rdev;
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struct device *dev;
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int ret, i;
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const char *supply = NULL;
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if (regulator_desc == NULL || config == NULL)
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if (regulator_desc == NULL || cfg == NULL)
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return ERR_PTR(-EINVAL);
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dev = config->dev;
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dev = cfg->dev;
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WARN_ON(!dev);
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if (regulator_desc->name == NULL || regulator_desc->ops == NULL)
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@ -3612,7 +3613,17 @@ regulator_register(const struct regulator_desc *regulator_desc,
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if (rdev == NULL)
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return ERR_PTR(-ENOMEM);
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init_data = regulator_of_get_init_data(dev, regulator_desc,
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/*
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* Duplicate the config so the driver could override it after
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* parsing init data.
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*/
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config = kmemdup(cfg, sizeof(*cfg), GFP_KERNEL);
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if (config == NULL) {
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kfree(rdev);
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return ERR_PTR(-ENOMEM);
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}
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init_data = regulator_of_get_init_data(dev, regulator_desc, config,
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&rdev->dev.of_node);
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if (!init_data) {
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init_data = config->init_data;
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@ -3735,6 +3746,7 @@ add_dev:
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rdev_init_debugfs(rdev);
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out:
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mutex_unlock(®ulator_list_mutex);
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kfree(config);
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return rdev;
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unset_supplies:
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@ -38,11 +38,13 @@ struct regulator {
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#ifdef CONFIG_OF
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struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
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const struct regulator_desc *desc,
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struct regulator_config *config,
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struct device_node **node);
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#else
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static inline struct regulator_init_data *
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regulator_of_get_init_data(struct device *dev,
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const struct regulator_desc *desc,
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struct regulator_config *config,
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struct device_node **node)
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{
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return NULL;
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@ -270,6 +270,7 @@ EXPORT_SYMBOL_GPL(of_regulator_match);
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struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
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const struct regulator_desc *desc,
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struct regulator_config *config,
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struct device_node **node)
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{
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struct device_node *search, *child;
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@ -307,6 +308,16 @@ struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
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break;
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}
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if (desc->of_parse_cb) {
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if (desc->of_parse_cb(child, desc, config)) {
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dev_err(dev,
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"driver callback failed to parse DT for regulator %s\n",
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child->name);
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init_data = NULL;
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break;
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}
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}
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of_node_get(child);
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*node = child;
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break;
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@ -21,6 +21,7 @@
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struct regmap;
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struct regulator_dev;
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struct regulator_config;
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struct regulator_init_data;
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struct regulator_enable_gpio;
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@ -205,6 +206,15 @@ enum regulator_type {
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* @supply_name: Identifying the regulator supply
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* @of_match: Name used to identify regulator in DT.
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* @regulators_node: Name of node containing regulator definitions in DT.
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* @of_parse_cb: Optional callback called only if of_match is present.
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* Will be called for each regulator parsed from DT, during
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* init_data parsing.
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* The regulator_config passed as argument to the callback will
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* be a copy of config passed to regulator_register, valid only
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* for this particular call. Callback may freely change the
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* config but it cannot store it for later usage.
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* Callback should return 0 on success or negative ERRNO
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* indicating failure.
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* @id: Numerical identifier for the regulator.
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* @ops: Regulator operations table.
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* @irq: Interrupt number for the regulator.
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@ -251,6 +261,9 @@ struct regulator_desc {
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const char *supply_name;
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const char *of_match;
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const char *regulators_node;
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int (*of_parse_cb)(struct device_node *,
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const struct regulator_desc *,
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struct regulator_config *);
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int id;
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bool continuous_voltage_range;
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unsigned n_voltages;
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