3  * phy-core.c  --  Generic Phy framework.
18 #include <linux/phy/phy.h>
32 	struct phy *phy = *(struct phy **)res;  in devm_phy_release()  local
34 	phy_put(dev, phy);  in devm_phy_release()
46 	struct phy *phy = *(struct phy **)res;  in devm_phy_consume()  local
48 	phy_destroy(phy);  in devm_phy_consume()
53 	struct phy **phy = res;  in devm_phy_match()  local
55 	return *phy == match_data;  in devm_phy_match()
59  * phy_create_lookup() - allocate and register PHY/device association
60  * @phy: the phy of the association
66 int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)  in phy_create_lookup()  argument
70 	if (!phy || !dev_id || !con_id)  in phy_create_lookup()
79 	pl->phy = phy;  in phy_create_lookup()
90  * phy_remove_lookup() - find and remove PHY/device association
91  * @phy: the phy of the association
98 void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id)  in phy_remove_lookup()  argument
102 	if (!phy || !dev_id || !con_id)  in phy_remove_lookup()
107 		if (pl->phy == phy && !strcmp(pl->dev_id, dev_id) &&  in phy_remove_lookup()
117 static struct phy *phy_find(struct device *dev, const char *con_id)  in phy_find()
130 	return pl ? pl->phy : ERR_PTR(-ENODEV);  in phy_find()
152 int phy_pm_runtime_get(struct phy *phy)  in phy_pm_runtime_get()  argument
156 	if (!phy)  in phy_pm_runtime_get()
159 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_get()
162 	ret = pm_runtime_get(&phy->dev);  in phy_pm_runtime_get()
164 		pm_runtime_put_noidle(&phy->dev);  in phy_pm_runtime_get()
170 int phy_pm_runtime_get_sync(struct phy *phy)  in phy_pm_runtime_get_sync()  argument
174 	if (!phy)  in phy_pm_runtime_get_sync()
177 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_get_sync()
180 	ret = pm_runtime_get_sync(&phy->dev);  in phy_pm_runtime_get_sync()
182 		pm_runtime_put_sync(&phy->dev);  in phy_pm_runtime_get_sync()
188 int phy_pm_runtime_put(struct phy *phy)  in phy_pm_runtime_put()  argument
190 	if (!phy)  in phy_pm_runtime_put()
193 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_put()
196 	return pm_runtime_put(&phy->dev);  in phy_pm_runtime_put()
200 int phy_pm_runtime_put_sync(struct phy *phy)  in phy_pm_runtime_put_sync()  argument
202 	if (!phy)  in phy_pm_runtime_put_sync()
205 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_put_sync()
208 	return pm_runtime_put_sync(&phy->dev);  in phy_pm_runtime_put_sync()
212 void phy_pm_runtime_allow(struct phy *phy)  in phy_pm_runtime_allow()  argument
214 	if (!phy)  in phy_pm_runtime_allow()
217 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_allow()
220 	pm_runtime_allow(&phy->dev);  in phy_pm_runtime_allow()
224 void phy_pm_runtime_forbid(struct phy *phy)  in phy_pm_runtime_forbid()  argument
226 	if (!phy)  in phy_pm_runtime_forbid()
229 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_forbid()
232 	pm_runtime_forbid(&phy->dev);  in phy_pm_runtime_forbid()
237  * phy_init - phy internal initialization before phy operation
238  * @phy: the phy returned by phy_get()
240  * Used to allow phy's driver to perform phy internal initialization,
242  * is required by the phy to perform the start of operation.
247 int phy_init(struct phy *phy)  in phy_init()  argument
251 	if (!phy)  in phy_init()
254 	ret = phy_pm_runtime_get_sync(phy);  in phy_init()
259 	mutex_lock(&phy->mutex);  in phy_init()
260 	if (phy->power_count > phy->init_count)  in phy_init()
261 		dev_warn(&phy->dev, "phy_power_on was called before phy_init\n");  in phy_init()
263 	if (phy->init_count == 0 && phy->ops->init) {  in phy_init()
264 		ret = phy->ops->init(phy);  in phy_init()
266 			dev_err(&phy->dev, "phy init failed --> %d\n", ret);  in phy_init()
270 	++phy->init_count;  in phy_init()
273 	mutex_unlock(&phy->mutex);  in phy_init()
274 	phy_pm_runtime_put(phy);  in phy_init()
280  * phy_exit - Phy internal un-initialization
281  * @phy: the phy returned by phy_get()
287 int phy_exit(struct phy *phy)  in phy_exit()  argument
291 	if (!phy)  in phy_exit()
294 	ret = phy_pm_runtime_get_sync(phy);  in phy_exit()
299 	mutex_lock(&phy->mutex);  in phy_exit()
300 	if (phy->init_count == 1 && phy->ops->exit) {  in phy_exit()
301 		ret = phy->ops->exit(phy);  in phy_exit()
303 			dev_err(&phy->dev, "phy exit failed --> %d\n", ret);  in phy_exit()
307 	--phy->init_count;  in phy_exit()
310 	mutex_unlock(&phy->mutex);  in phy_exit()
311 	phy_pm_runtime_put(phy);  in phy_exit()
317  * phy_power_on - Enable the phy and enter proper operation
318  * @phy: the phy returned by phy_get()
324 int phy_power_on(struct phy *phy)  in phy_power_on()  argument
328 	if (!phy)  in phy_power_on()
331 	if (phy->pwr) {  in phy_power_on()
332 		ret = regulator_enable(phy->pwr);  in phy_power_on()
337 	ret = phy_pm_runtime_get_sync(phy);  in phy_power_on()
343 	mutex_lock(&phy->mutex);  in phy_power_on()
344 	if (phy->power_count == 0 && phy->ops->power_on) {  in phy_power_on()
345 		ret = phy->ops->power_on(phy);  in phy_power_on()
347 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);  in phy_power_on()
351 	++phy->power_count;  in phy_power_on()
352 	mutex_unlock(&phy->mutex);  in phy_power_on()
356 	mutex_unlock(&phy->mutex);  in phy_power_on()
357 	phy_pm_runtime_put_sync(phy);  in phy_power_on()
359 	if (phy->pwr)  in phy_power_on()
360 		regulator_disable(phy->pwr);  in phy_power_on()
367  * phy_power_off - Disable the phy.
368  * @phy: the phy returned by phy_get()
374 int phy_power_off(struct phy *phy)  in phy_power_off()  argument
378 	if (!phy)  in phy_power_off()
381 	mutex_lock(&phy->mutex);  in phy_power_off()
382 	if (phy->power_count == 1 && phy->ops->power_off) {  in phy_power_off()
383 		ret =  phy->ops->power_off(phy);  in phy_power_off()
385 			dev_err(&phy->dev, "phy poweroff failed --> %d\n", ret);  in phy_power_off()
386 			mutex_unlock(&phy->mutex);  in phy_power_off()
390 	--phy->power_count;  in phy_power_off()
391 	mutex_unlock(&phy->mutex);  in phy_power_off()
392 	phy_pm_runtime_put(phy);  in phy_power_off()
394 	if (phy->pwr)  in phy_power_off()
395 		regulator_disable(phy->pwr);  in phy_power_off()
401 int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode)  in phy_set_mode_ext()  argument
405 	if (!phy || !phy->ops->set_mode)  in phy_set_mode_ext()
408 	mutex_lock(&phy->mutex);  in phy_set_mode_ext()
409 	ret = phy->ops->set_mode(phy, mode, submode);  in phy_set_mode_ext()
411 		phy->attrs.mode = mode;  in phy_set_mode_ext()
412 	mutex_unlock(&phy->mutex);  in phy_set_mode_ext()
418 int phy_set_media(struct phy *phy, enum phy_media media)  in phy_set_media()  argument
422 	if (!phy || !phy->ops->set_media)  in phy_set_media()
425 	mutex_lock(&phy->mutex);  in phy_set_media()
426 	ret = phy->ops->set_media(phy, media);  in phy_set_media()
427 	mutex_unlock(&phy->mutex);  in phy_set_media()
433 int phy_set_speed(struct phy *phy, int speed)  in phy_set_speed()  argument
437 	if (!phy || !phy->ops->set_speed)  in phy_set_speed()
440 	mutex_lock(&phy->mutex);  in phy_set_speed()
441 	ret = phy->ops->set_speed(phy, speed);  in phy_set_speed()
442 	mutex_unlock(&phy->mutex);  in phy_set_speed()
448 int phy_reset(struct phy *phy)  in phy_reset()  argument
452 	if (!phy || !phy->ops->reset)  in phy_reset()
455 	ret = phy_pm_runtime_get_sync(phy);  in phy_reset()
459 	mutex_lock(&phy->mutex);  in phy_reset()
460 	ret = phy->ops->reset(phy);  in phy_reset()
461 	mutex_unlock(&phy->mutex);  in phy_reset()
463 	phy_pm_runtime_put(phy);  in phy_reset()
470  * phy_calibrate() - Tunes the phy hw parameters for current configuration
471  * @phy: the phy returned by phy_get()
473  * Used to calibrate phy hardware, typically by adjusting some parameters in
479 int phy_calibrate(struct phy *phy)  in phy_calibrate()  argument
483 	if (!phy || !phy->ops->calibrate)  in phy_calibrate()
486 	mutex_lock(&phy->mutex);  in phy_calibrate()
487 	ret = phy->ops->calibrate(phy);  in phy_calibrate()
488 	mutex_unlock(&phy->mutex);  in phy_calibrate()
495  * phy_configure() - Changes the phy parameters
496  * @phy: the phy returned by phy_get()
499  * Used to change the PHY parameters. phy_init() must have been called
500  * on the phy. The configuration will be applied on the current phy
505 int phy_configure(struct phy *phy, union phy_configure_opts *opts)  in phy_configure()  argument
509 	if (!phy)  in phy_configure()
512 	if (!phy->ops->configure)  in phy_configure()
515 	mutex_lock(&phy->mutex);  in phy_configure()
516 	ret = phy->ops->configure(phy, opts);  in phy_configure()
517 	mutex_unlock(&phy->mutex);  in phy_configure()
524  * phy_validate() - Checks the phy parameters
525  * @phy: the phy returned by phy_get()
527  * @submode: PHY submode the configuration is applicable to.
531  * the phy. Implementations are free to tune the parameters passed as
534  * PHY, so calling it as many times as deemed fit will have no side
539 int phy_validate(struct phy *phy, enum phy_mode mode, int submode,  in phy_validate()  argument
544 	if (!phy)  in phy_validate()
547 	if (!phy->ops->validate)  in phy_validate()
550 	mutex_lock(&phy->mutex);  in phy_validate()
551 	ret = phy->ops->validate(phy, mode, submode, opts);  in phy_validate()
552 	mutex_unlock(&phy->mutex);  in phy_validate()
559  * _of_phy_get() - lookup and obtain a reference to a phy by phandle
560  * @np: device_node for which to get the phy
561  * @index: the index of the phy
563  * Returns the phy associated with the given phandle value,
564  * after getting a refcount to it or -ENODEV if there is no such phy or
565  * -EPROBE_DEFER if there is a phandle to the phy, but the device is
567  * while registering the phy_provider to find the phy instance.
569 static struct phy *_of_phy_get(struct device_node *np, int index)  in _of_phy_get()
573 	struct phy *phy = NULL;  in _of_phy_get()  local
576 	ret = of_parse_phandle_with_args(np, "phys", "#phy-cells",  in _of_phy_get()
581 	/* This phy type handled by the usb-phy subsystem for now */  in _of_phy_get()
583 		phy = ERR_PTR(-ENODEV);  in _of_phy_get()
590 		phy = ERR_PTR(-EPROBE_DEFER);  in _of_phy_get()
595 		dev_warn(phy_provider->dev, "Requested PHY is disabled\n");  in _of_phy_get()
596 		phy = ERR_PTR(-ENODEV);  in _of_phy_get()
600 	phy = phy_provider->of_xlate(phy_provider->dev, &args);  in _of_phy_get()
610 	return phy;  in _of_phy_get()
614  * of_phy_get() - lookup and obtain a reference to a phy using a device_node.
615  * @np: device_node for which to get the phy
616  * @con_id: name of the phy from device's point of view
618  * Returns the phy driver, after getting a refcount to it; or
619  * -ENODEV if there is no such phy. The caller is responsible for
622 struct phy *of_phy_get(struct device_node *np, const char *con_id)  in of_phy_get()
624 	struct phy *phy = NULL;  in of_phy_get()  local
628 		index = of_property_match_string(np, "phy-names", con_id);  in of_phy_get()
630 	phy = _of_phy_get(np, index);  in of_phy_get()
631 	if (IS_ERR(phy))  in of_phy_get()
632 		return phy;  in of_phy_get()
634 	if (!try_module_get(phy->ops->owner))  in of_phy_get()
637 	get_device(&phy->dev);  in of_phy_get()
639 	return phy;  in of_phy_get()
644  * of_phy_put() - release the PHY
645  * @phy: the phy returned by of_phy_get()
649 void of_phy_put(struct phy *phy)  in of_phy_put()  argument
651 	if (!phy || IS_ERR(phy))  in of_phy_put()
654 	mutex_lock(&phy->mutex);  in of_phy_put()
655 	if (phy->ops->release)  in of_phy_put()
656 		phy->ops->release(phy);  in of_phy_put()
657 	mutex_unlock(&phy->mutex);  in of_phy_put()
659 	module_put(phy->ops->owner);  in of_phy_put()
660 	put_device(&phy->dev);  in of_phy_put()
665  * phy_put() - release the PHY
666  * @dev: device that wants to release this phy
667  * @phy: the phy returned by phy_get()
671 void phy_put(struct device *dev, struct phy *phy)  in phy_put()  argument
673 	device_link_remove(dev, &phy->dev);  in phy_put()
674 	of_phy_put(phy);  in phy_put()
679  * devm_phy_put() - release the PHY
680  * @dev: device that wants to release this phy
681  * @phy: the phy returned by devm_phy_get()
683  * destroys the devres associated with this phy and invokes phy_put
684  * to release the phy.
686 void devm_phy_put(struct device *dev, struct phy *phy)  in devm_phy_put()  argument
690 	if (!phy)  in devm_phy_put()
693 	r = devres_release(dev, devm_phy_release, devm_phy_match, phy);  in devm_phy_put()
694 	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");  in devm_phy_put()
699  * of_phy_simple_xlate() - returns the phy instance from phy provider
700  * @dev: the PHY provider device
703  * Intended to be used by phy provider for the common case where #phy-cells is
704  * 0. For other cases where #phy-cells is greater than '0', the phy provider
706  * the appropriate phy.
708 struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args  in of_phy_simple_xlate()
711 	struct phy *phy;  in of_phy_simple_xlate()  local
716 		phy = to_phy(dev);  in of_phy_simple_xlate()
717 		if (args->np != phy->dev.of_node)  in of_phy_simple_xlate()
721 		return phy;  in of_phy_simple_xlate()
730  * phy_get() - lookup and obtain a reference to a phy.
731  * @dev: device that requests this phy
732  * @string: the phy name as given in the dt data or the name of the controller
735  * Returns the phy driver, after getting a refcount to it; or
736  * -ENODEV if there is no such phy.  The caller is responsible for
739 struct phy *phy_get(struct device *dev, const char *string)  in phy_get()
742 	struct phy *phy;  in phy_get()  local
747 			index = of_property_match_string(dev->of_node, "phy-names",  in phy_get()
751 		phy = _of_phy_get(dev->of_node, index);  in phy_get()
757 		phy = phy_find(dev, string);  in phy_get()
759 	if (IS_ERR(phy))  in phy_get()
760 		return phy;  in phy_get()
762 	if (!try_module_get(phy->ops->owner))  in phy_get()
765 	get_device(&phy->dev);  in phy_get()
767 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in phy_get()
770 			dev_name(phy->dev.parent));  in phy_get()
772 	return phy;  in phy_get()
777  * devm_phy_get() - lookup and obtain a reference to a phy.
778  * @dev: device that requests this phy
779  * @string: the phy name as given in the dt data or phy device name
782  * Gets the phy using phy_get(), and associates a device with it using
786 struct phy *devm_phy_get(struct device *dev, const char *string)  in devm_phy_get()
788 	struct phy **ptr, *phy;  in devm_phy_get()  local
794 	phy = phy_get(dev, string);  in devm_phy_get()
795 	if (!IS_ERR(phy)) {  in devm_phy_get()
796 		*ptr = phy;  in devm_phy_get()
802 	return phy;  in devm_phy_get()
807  * devm_phy_optional_get() - lookup and obtain a reference to an optional phy.
808  * @dev: device that requests this phy
809  * @string: the phy name as given in the dt data or phy device name
812  * Gets the phy using phy_get(), and associates a device with it using
815  * that if the phy does not exist, it is not considered an error and
816  * -ENODEV will not be returned. Instead the NULL phy is returned,
817  * which can be passed to all other phy consumer calls.
819 struct phy *devm_phy_optional_get(struct device *dev, const char *string)  in devm_phy_optional_get()
821 	struct phy *phy = devm_phy_get(dev, string);  in devm_phy_optional_get()  local
823 	if (PTR_ERR(phy) == -ENODEV)  in devm_phy_optional_get()
824 		phy = NULL;  in devm_phy_optional_get()
826 	return phy;  in devm_phy_optional_get()
831  * devm_of_phy_get() - lookup and obtain a reference to a phy.
832  * @dev: device that requests this phy
833  * @np: node containing the phy
834  * @con_id: name of the phy from device's point of view
836  * Gets the phy using of_phy_get(), and associates a device with it using
840 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,  in devm_of_phy_get()
843 	struct phy **ptr, *phy;  in devm_of_phy_get()  local
850 	phy = of_phy_get(np, con_id);  in devm_of_phy_get()
851 	if (!IS_ERR(phy)) {  in devm_of_phy_get()
852 		*ptr = phy;  in devm_of_phy_get()
856 		return phy;  in devm_of_phy_get()
859 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in devm_of_phy_get()
862 			dev_name(phy->dev.parent));  in devm_of_phy_get()
864 	return phy;  in devm_of_phy_get()
870  * phy.
871  * @dev: device that requests this phy
872  * @np: node containing the phy
873  * @con_id: name of the phy from device's point of view
875  * Gets the phy using of_phy_get(), and associates a device with it using
878  * that if the phy does not exist, it is not considered an error and
879  * -ENODEV will not be returned. Instead the NULL phy is returned,
880  * which can be passed to all other phy consumer calls.
882 struct phy *devm_of_phy_optional_get(struct device *dev, struct device_node *np,  in devm_of_phy_optional_get()
885 	struct phy *phy = devm_of_phy_get(dev, np, con_id);  in devm_of_phy_optional_get()  local
887 	if (PTR_ERR(phy) == -ENODEV)  in devm_of_phy_optional_get()
888 		phy = NULL;  in devm_of_phy_optional_get()
890 	if (IS_ERR(phy))  in devm_of_phy_optional_get()
891 		dev_err_probe(dev, PTR_ERR(phy), "failed to get PHY %pOF:%s",  in devm_of_phy_optional_get()
894 	return phy;  in devm_of_phy_optional_get()
899  * devm_of_phy_get_by_index() - lookup and obtain a reference to a phy by index.
900  * @dev: device that requests this phy
901  * @np: node containing the phy
902  * @index: index of the phy
904  * Gets the phy using _of_phy_get(), then gets a refcount to it,
910 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,  in devm_of_phy_get_by_index()
913 	struct phy **ptr, *phy;  in devm_of_phy_get_by_index()  local
920 	phy = _of_phy_get(np, index);  in devm_of_phy_get_by_index()
921 	if (IS_ERR(phy)) {  in devm_of_phy_get_by_index()
923 		return phy;  in devm_of_phy_get_by_index()
926 	if (!try_module_get(phy->ops->owner)) {  in devm_of_phy_get_by_index()
931 	get_device(&phy->dev);  in devm_of_phy_get_by_index()
933 	*ptr = phy;  in devm_of_phy_get_by_index()
936 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in devm_of_phy_get_by_index()
939 			dev_name(phy->dev.parent));  in devm_of_phy_get_by_index()
941 	return phy;  in devm_of_phy_get_by_index()
946  * phy_create() - create a new phy
947  * @dev: device that is creating the new phy
948  * @node: device node of the phy
949  * @ops: function pointers for performing phy operations
951  * Called to create a phy using phy framework.
953 struct phy *phy_create(struct device *dev, struct device_node *node,  in phy_create()
958 	struct phy *phy;  in phy_create()  local
963 	phy = kzalloc(sizeof(*phy), GFP_KERNEL);  in phy_create()
964 	if (!phy)  in phy_create()
974 	device_initialize(&phy->dev);  in phy_create()
975 	mutex_init(&phy->mutex);  in phy_create()
977 	phy->dev.class = phy_class;  in phy_create()
978 	phy->dev.parent = dev;  in phy_create()
979 	phy->dev.of_node = node ?: dev->of_node;  in phy_create()
980 	phy->id = id;  in phy_create()
981 	phy->ops = ops;  in phy_create()
983 	ret = dev_set_name(&phy->dev, "phy-%s.%d", dev_name(dev), id);  in phy_create()
987 	/* phy-supply */  in phy_create()
988 	phy->pwr = regulator_get_optional(&phy->dev, "phy");  in phy_create()
989 	if (IS_ERR(phy->pwr)) {  in phy_create()
990 		ret = PTR_ERR(phy->pwr);  in phy_create()
994 		phy->pwr = NULL;  in phy_create()
997 	ret = device_add(&phy->dev);  in phy_create()
1002 		pm_runtime_enable(&phy->dev);  in phy_create()
1003 		pm_runtime_no_callbacks(&phy->dev);  in phy_create()
1006 	phy->debugfs = debugfs_create_dir(dev_name(&phy->dev), phy_debugfs_root);  in phy_create()
1008 	return phy;  in phy_create()
1011 	put_device(&phy->dev);  /* calls phy_release() which frees resources */  in phy_create()
1015 	kfree(phy);  in phy_create()
1021  * devm_phy_create() - create a new phy
1022  * @dev: device that is creating the new phy
1023  * @node: device node of the phy
1024  * @ops: function pointers for performing phy operations
1026  * Creates a new PHY device adding it to the PHY class.
1027  * While at that, it also associates the device with the phy using devres.
1031 struct phy *devm_phy_create(struct device *dev, struct device_node *node,  in devm_phy_create()
1034 	struct phy **ptr, *phy;  in devm_phy_create()  local
1040 	phy = phy_create(dev, node, ops);  in devm_phy_create()
1041 	if (!IS_ERR(phy)) {  in devm_phy_create()
1042 		*ptr = phy;  in devm_phy_create()
1048 	return phy;  in devm_phy_create()
1053  * phy_destroy() - destroy the phy
1054  * @phy: the phy to be destroyed
1056  * Called to destroy the phy.
1058 void phy_destroy(struct phy *phy)  in phy_destroy()  argument
1060 	pm_runtime_disable(&phy->dev);  in phy_destroy()
1061 	device_unregister(&phy->dev);  in phy_destroy()
1066  * devm_phy_destroy() - destroy the PHY
1067  * @dev: device that wants to release this phy
1068  * @phy: the phy returned by devm_phy_get()
1070  * destroys the devres associated with this phy and invokes phy_destroy
1071  * to destroy the phy.
1073 void devm_phy_destroy(struct device *dev, struct phy *phy)  in devm_phy_destroy()  argument
1077 	r = devres_release(dev, devm_phy_consume, devm_phy_match, phy);  in devm_phy_destroy()
1078 	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");  in devm_phy_destroy()
1083  * __of_phy_provider_register() - create/register phy provider with the framework
1084  * @dev: struct device of the phy provider
1087  * @of_xlate: function pointer to obtain phy instance from phy provider
1090  * This is used in the case of dt boot for finding the phy instance from
1091  * phy provider.
1093  * If the PHY provider doesn't nest children directly but uses a separate
1102 	struct phy * (*of_xlate)(struct device *dev,  in __of_phy_provider_register()
1150  * __devm_of_phy_provider_register() - create/register phy provider with the
1152  * @dev: struct device of the phy provider
1155  * @of_xlate: function pointer to obtain phy instance from phy provider
1158  * This is used in the case of dt boot for finding the phy instance from
1159  * phy provider. While at that, it also associates the device with the
1160  * phy provider using devres. On driver detach, release function is invoked
1165 	struct phy * (*of_xlate)(struct device *dev,  in __devm_of_phy_provider_register()
1188  * of_phy_provider_unregister() - unregister phy provider from the framework
1189  * @phy_provider: phy provider returned by of_phy_provider_register()
1207  * devm_of_phy_provider_unregister() - remove phy provider from the framework
1208  * @dev: struct device of the phy provider
1209  * @phy_provider: phy provider returned by of_phy_provider_register()
1211  * destroys the devres associated with this phy provider and invokes
1212  * of_phy_provider_unregister to unregister the phy provider.
1221 	dev_WARN_ONCE(dev, r, "couldn't find PHY provider device resource\n");  in devm_of_phy_provider_unregister()
1226  * phy_release() - release the phy
1227  * @dev: the dev member within phy
1234 	struct phy *phy;  in phy_release()  local
1236 	phy = to_phy(dev);  in phy_release()
1238 	debugfs_remove_recursive(phy->debugfs);  in phy_release()
1239 	regulator_put(phy->pwr);  in phy_release()
1240 	ida_simple_remove(&phy_ida, phy->id);  in phy_release()
1241 	kfree(phy);  in phy_release()
1246 	phy_class = class_create("phy");  in phy_core_init()
1248 		pr_err("failed to create phy class --> %ld\n",  in phy_core_init()
1255 	phy_debugfs_root = debugfs_create_dir("phy", NULL);  in phy_core_init()