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()
150 int phy_pm_runtime_get(struct phy *phy)  in phy_pm_runtime_get()  argument
154 	if (!phy)  in phy_pm_runtime_get()
157 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_get()
160 	ret = pm_runtime_get(&phy->dev);  in phy_pm_runtime_get()
162 		pm_runtime_put_noidle(&phy->dev);  in phy_pm_runtime_get()
168 int phy_pm_runtime_get_sync(struct phy *phy)  in phy_pm_runtime_get_sync()  argument
172 	if (!phy)  in phy_pm_runtime_get_sync()
175 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_get_sync()
178 	ret = pm_runtime_get_sync(&phy->dev);  in phy_pm_runtime_get_sync()
180 		pm_runtime_put_sync(&phy->dev);  in phy_pm_runtime_get_sync()
186 int phy_pm_runtime_put(struct phy *phy)  in phy_pm_runtime_put()  argument
188 	if (!phy)  in phy_pm_runtime_put()
191 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_put()
194 	return pm_runtime_put(&phy->dev);  in phy_pm_runtime_put()
198 int phy_pm_runtime_put_sync(struct phy *phy)  in phy_pm_runtime_put_sync()  argument
200 	if (!phy)  in phy_pm_runtime_put_sync()
203 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_put_sync()
206 	return pm_runtime_put_sync(&phy->dev);  in phy_pm_runtime_put_sync()
210 void phy_pm_runtime_allow(struct phy *phy)  in phy_pm_runtime_allow()  argument
212 	if (!phy)  in phy_pm_runtime_allow()
215 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_allow()
218 	pm_runtime_allow(&phy->dev);  in phy_pm_runtime_allow()
222 void phy_pm_runtime_forbid(struct phy *phy)  in phy_pm_runtime_forbid()  argument
224 	if (!phy)  in phy_pm_runtime_forbid()
227 	if (!pm_runtime_enabled(&phy->dev))  in phy_pm_runtime_forbid()
230 	pm_runtime_forbid(&phy->dev);  in phy_pm_runtime_forbid()
235  * phy_init - phy internal initialization before phy operation
236  * @phy: the phy returned by phy_get()
238  * Used to allow phy's driver to perform phy internal initialization,
240  * is required by the phy to perform the start of operation.
245 int phy_init(struct phy *phy)  in phy_init()  argument
249 	if (!phy)  in phy_init()
252 	ret = phy_pm_runtime_get_sync(phy);  in phy_init()
257 	mutex_lock(&phy->mutex);  in phy_init()
258 	if (phy->power_count > phy->init_count)  in phy_init()
259 		dev_warn(&phy->dev, "phy_power_on was called before phy_init\n");  in phy_init()
261 	if (phy->init_count == 0 && phy->ops->init) {  in phy_init()
262 		ret = phy->ops->init(phy);  in phy_init()
264 			dev_err(&phy->dev, "phy init failed --> %d\n", ret);  in phy_init()
268 	++phy->init_count;  in phy_init()
271 	mutex_unlock(&phy->mutex);  in phy_init()
272 	phy_pm_runtime_put(phy);  in phy_init()
278  * phy_exit - Phy internal un-initialization
279  * @phy: the phy returned by phy_get()
285 int phy_exit(struct phy *phy)  in phy_exit()  argument
289 	if (!phy)  in phy_exit()
292 	ret = phy_pm_runtime_get_sync(phy);  in phy_exit()
297 	mutex_lock(&phy->mutex);  in phy_exit()
298 	if (phy->init_count == 1 && phy->ops->exit) {  in phy_exit()
299 		ret = phy->ops->exit(phy);  in phy_exit()
301 			dev_err(&phy->dev, "phy exit failed --> %d\n", ret);  in phy_exit()
305 	--phy->init_count;  in phy_exit()
308 	mutex_unlock(&phy->mutex);  in phy_exit()
309 	phy_pm_runtime_put(phy);  in phy_exit()
315  * phy_power_on - Enable the phy and enter proper operation
316  * @phy: the phy returned by phy_get()
322 int phy_power_on(struct phy *phy)  in phy_power_on()  argument
326 	if (!phy)  in phy_power_on()
329 	if (phy->pwr) {  in phy_power_on()
330 		ret = regulator_enable(phy->pwr);  in phy_power_on()
335 	ret = phy_pm_runtime_get_sync(phy);  in phy_power_on()
341 	mutex_lock(&phy->mutex);  in phy_power_on()
342 	if (phy->power_count == 0 && phy->ops->power_on) {  in phy_power_on()
343 		ret = phy->ops->power_on(phy);  in phy_power_on()
345 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);  in phy_power_on()
349 	++phy->power_count;  in phy_power_on()
350 	mutex_unlock(&phy->mutex);  in phy_power_on()
354 	mutex_unlock(&phy->mutex);  in phy_power_on()
355 	phy_pm_runtime_put_sync(phy);  in phy_power_on()
357 	if (phy->pwr)  in phy_power_on()
358 		regulator_disable(phy->pwr);  in phy_power_on()
365  * phy_power_off - Disable the phy.
366  * @phy: the phy returned by phy_get()
372 int phy_power_off(struct phy *phy)  in phy_power_off()  argument
376 	if (!phy)  in phy_power_off()
379 	mutex_lock(&phy->mutex);  in phy_power_off()
380 	if (phy->power_count == 1 && phy->ops->power_off) {  in phy_power_off()
381 		ret =  phy->ops->power_off(phy);  in phy_power_off()
383 			dev_err(&phy->dev, "phy poweroff failed --> %d\n", ret);  in phy_power_off()
384 			mutex_unlock(&phy->mutex);  in phy_power_off()
388 	--phy->power_count;  in phy_power_off()
389 	mutex_unlock(&phy->mutex);  in phy_power_off()
390 	phy_pm_runtime_put(phy);  in phy_power_off()
392 	if (phy->pwr)  in phy_power_off()
393 		regulator_disable(phy->pwr);  in phy_power_off()
399 int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode)  in phy_set_mode_ext()  argument
403 	if (!phy || !phy->ops->set_mode)  in phy_set_mode_ext()
406 	mutex_lock(&phy->mutex);  in phy_set_mode_ext()
407 	ret = phy->ops->set_mode(phy, mode, submode);  in phy_set_mode_ext()
409 		phy->attrs.mode = mode;  in phy_set_mode_ext()
410 	mutex_unlock(&phy->mutex);  in phy_set_mode_ext()
416 int phy_set_media(struct phy *phy, enum phy_media media)  in phy_set_media()  argument
420 	if (!phy || !phy->ops->set_media)  in phy_set_media()
423 	mutex_lock(&phy->mutex);  in phy_set_media()
424 	ret = phy->ops->set_media(phy, media);  in phy_set_media()
425 	mutex_unlock(&phy->mutex);  in phy_set_media()
431 int phy_set_speed(struct phy *phy, int speed)  in phy_set_speed()  argument
435 	if (!phy || !phy->ops->set_speed)  in phy_set_speed()
438 	mutex_lock(&phy->mutex);  in phy_set_speed()
439 	ret = phy->ops->set_speed(phy, speed);  in phy_set_speed()
440 	mutex_unlock(&phy->mutex);  in phy_set_speed()
446 int phy_reset(struct phy *phy)  in phy_reset()  argument
450 	if (!phy || !phy->ops->reset)  in phy_reset()
453 	ret = phy_pm_runtime_get_sync(phy);  in phy_reset()
457 	mutex_lock(&phy->mutex);  in phy_reset()
458 	ret = phy->ops->reset(phy);  in phy_reset()
459 	mutex_unlock(&phy->mutex);  in phy_reset()
461 	phy_pm_runtime_put(phy);  in phy_reset()
468  * phy_calibrate() - Tunes the phy hw parameters for current configuration
469  * @phy: the phy returned by phy_get()
471  * Used to calibrate phy hardware, typically by adjusting some parameters in
477 int phy_calibrate(struct phy *phy)  in phy_calibrate()  argument
481 	if (!phy || !phy->ops->calibrate)  in phy_calibrate()
484 	mutex_lock(&phy->mutex);  in phy_calibrate()
485 	ret = phy->ops->calibrate(phy);  in phy_calibrate()
486 	mutex_unlock(&phy->mutex);  in phy_calibrate()
493  * phy_configure() - Changes the phy parameters
494  * @phy: the phy returned by phy_get()
497  * Used to change the PHY parameters. phy_init() must have been called
498  * on the phy. The configuration will be applied on the current phy
503 int phy_configure(struct phy *phy, union phy_configure_opts *opts)  in phy_configure()  argument
507 	if (!phy)  in phy_configure()
510 	if (!phy->ops->configure)  in phy_configure()
513 	mutex_lock(&phy->mutex);  in phy_configure()
514 	ret = phy->ops->configure(phy, opts);  in phy_configure()
515 	mutex_unlock(&phy->mutex);  in phy_configure()
522  * phy_validate() - Checks the phy parameters
523  * @phy: the phy returned by phy_get()
525  * @submode: PHY submode the configuration is applicable to.
529  * the phy. Implementations are free to tune the parameters passed as
532  * PHY, so calling it as many times as deemed fit will have no side
537 int phy_validate(struct phy *phy, enum phy_mode mode, int submode,  in phy_validate()  argument
542 	if (!phy)  in phy_validate()
545 	if (!phy->ops->validate)  in phy_validate()
548 	mutex_lock(&phy->mutex);  in phy_validate()
549 	ret = phy->ops->validate(phy, mode, submode, opts);  in phy_validate()
550 	mutex_unlock(&phy->mutex);  in phy_validate()
557  * _of_phy_get() - lookup and obtain a reference to a phy by phandle
558  * @np: device_node for which to get the phy
559  * @index: the index of the phy
561  * Returns the phy associated with the given phandle value,
562  * after getting a refcount to it or -ENODEV if there is no such phy or
563  * -EPROBE_DEFER if there is a phandle to the phy, but the device is
565  * while registering the phy_provider to find the phy instance.
567 static struct phy *_of_phy_get(struct device_node *np, int index)  in _of_phy_get()
571 	struct phy *phy = NULL;  in _of_phy_get()  local
574 	ret = of_parse_phandle_with_args(np, "phys", "#phy-cells",  in _of_phy_get()
579 	/* This phy type handled by the usb-phy subsystem for now */  in _of_phy_get()
586 		phy = ERR_PTR(-EPROBE_DEFER);  in _of_phy_get()
591 		dev_warn(phy_provider->dev, "Requested PHY is disabled\n");  in _of_phy_get()
592 		phy = ERR_PTR(-ENODEV);  in _of_phy_get()
596 	phy = phy_provider->of_xlate(phy_provider->dev, &args);  in _of_phy_get()
605 	return phy;  in _of_phy_get()
609  * of_phy_get() - lookup and obtain a reference to a phy using a device_node.
610  * @np: device_node for which to get the phy
611  * @con_id: name of the phy from device's point of view
613  * Returns the phy driver, after getting a refcount to it; or
614  * -ENODEV if there is no such phy. The caller is responsible for
617 struct phy *of_phy_get(struct device_node *np, const char *con_id)  in of_phy_get()
619 	struct phy *phy = NULL;  in of_phy_get()  local
623 		index = of_property_match_string(np, "phy-names", con_id);  in of_phy_get()
625 	phy = _of_phy_get(np, index);  in of_phy_get()
626 	if (IS_ERR(phy))  in of_phy_get()
627 		return phy;  in of_phy_get()
629 	if (!try_module_get(phy->ops->owner))  in of_phy_get()
632 	get_device(&phy->dev);  in of_phy_get()
634 	return phy;  in of_phy_get()
639  * of_phy_put() - release the PHY
640  * @phy: the phy returned by of_phy_get()
644 void of_phy_put(struct phy *phy)  in of_phy_put()  argument
646 	if (!phy || IS_ERR(phy))  in of_phy_put()
649 	mutex_lock(&phy->mutex);  in of_phy_put()
650 	if (phy->ops->release)  in of_phy_put()
651 		phy->ops->release(phy);  in of_phy_put()
652 	mutex_unlock(&phy->mutex);  in of_phy_put()
654 	module_put(phy->ops->owner);  in of_phy_put()
655 	put_device(&phy->dev);  in of_phy_put()
660  * phy_put() - release the PHY
661  * @dev: device that wants to release this phy
662  * @phy: the phy returned by phy_get()
666 void phy_put(struct device *dev, struct phy *phy)  in phy_put()  argument
668 	device_link_remove(dev, &phy->dev);  in phy_put()
669 	of_phy_put(phy);  in phy_put()
674  * devm_phy_put() - release the PHY
675  * @dev: device that wants to release this phy
676  * @phy: the phy returned by devm_phy_get()
678  * destroys the devres associated with this phy and invokes phy_put
679  * to release the phy.
681 void devm_phy_put(struct device *dev, struct phy *phy)  in devm_phy_put()  argument
685 	if (!phy)  in devm_phy_put()
688 	r = devres_destroy(dev, devm_phy_release, devm_phy_match, phy);  in devm_phy_put()
689 	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");  in devm_phy_put()
694  * of_phy_simple_xlate() - returns the phy instance from phy provider
695  * @dev: the PHY provider device
698  * Intended to be used by phy provider for the common case where #phy-cells is
699  * 0. For other cases where #phy-cells is greater than '0', the phy provider
701  * the appropriate phy.
703 struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args  in of_phy_simple_xlate()
706 	struct phy *phy;  in of_phy_simple_xlate()  local
711 		phy = to_phy(dev);  in of_phy_simple_xlate()
712 		if (args->np != phy->dev.of_node)  in of_phy_simple_xlate()
716 		return phy;  in of_phy_simple_xlate()
725  * phy_get() - lookup and obtain a reference to a phy.
726  * @dev: device that requests this phy
727  * @string: the phy name as given in the dt data or the name of the controller
730  * Returns the phy driver, after getting a refcount to it; or
731  * -ENODEV if there is no such phy.  The caller is responsible for
734 struct phy *phy_get(struct device *dev, const char *string)  in phy_get()
737 	struct phy *phy;  in phy_get()  local
742 			index = of_property_match_string(dev->of_node, "phy-names",  in phy_get()
746 		phy = _of_phy_get(dev->of_node, index);  in phy_get()
752 		phy = phy_find(dev, string);  in phy_get()
754 	if (IS_ERR(phy))  in phy_get()
755 		return phy;  in phy_get()
757 	if (!try_module_get(phy->ops->owner))  in phy_get()
760 	get_device(&phy->dev);  in phy_get()
762 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in phy_get()
765 			dev_name(phy->dev.parent));  in phy_get()
767 	return phy;  in phy_get()
772  * devm_phy_get() - lookup and obtain a reference to a phy.
773  * @dev: device that requests this phy
774  * @string: the phy name as given in the dt data or phy device name
777  * Gets the phy using phy_get(), and associates a device with it using
781 struct phy *devm_phy_get(struct device *dev, const char *string)  in devm_phy_get()
783 	struct phy **ptr, *phy;  in devm_phy_get()  local
789 	phy = phy_get(dev, string);  in devm_phy_get()
790 	if (!IS_ERR(phy)) {  in devm_phy_get()
791 		*ptr = phy;  in devm_phy_get()
797 	return phy;  in devm_phy_get()
802  * devm_phy_optional_get() - lookup and obtain a reference to an optional phy.
803  * @dev: device that requests this phy
804  * @string: the phy name as given in the dt data or phy device name
807  * Gets the phy using phy_get(), and associates a device with it using
810  * that if the phy does not exist, it is not considered an error and
811  * -ENODEV will not be returned. Instead the NULL phy is returned,
812  * which can be passed to all other phy consumer calls.
814 struct phy *devm_phy_optional_get(struct device *dev, const char *string)  in devm_phy_optional_get()
816 	struct phy *phy = devm_phy_get(dev, string);  in devm_phy_optional_get()  local
818 	if (PTR_ERR(phy) == -ENODEV)  in devm_phy_optional_get()
819 		phy = NULL;  in devm_phy_optional_get()
821 	return phy;  in devm_phy_optional_get()
826  * devm_of_phy_get() - lookup and obtain a reference to a phy.
827  * @dev: device that requests this phy
828  * @np: node containing the phy
829  * @con_id: name of the phy from device's point of view
831  * Gets the phy using of_phy_get(), and associates a device with it using
835 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,  in devm_of_phy_get()
838 	struct phy **ptr, *phy;  in devm_of_phy_get()  local
845 	phy = of_phy_get(np, con_id);  in devm_of_phy_get()
846 	if (!IS_ERR(phy)) {  in devm_of_phy_get()
847 		*ptr = phy;  in devm_of_phy_get()
851 		return phy;  in devm_of_phy_get()
854 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in devm_of_phy_get()
857 			dev_name(phy->dev.parent));  in devm_of_phy_get()
859 	return phy;  in devm_of_phy_get()
865  * phy.
866  * @dev: device that requests this phy
867  * @np: node containing the phy
868  * @con_id: name of the phy from device's point of view
870  * Gets the phy using of_phy_get(), and associates a device with it using
873  * that if the phy does not exist, it is not considered an error and
874  * -ENODEV will not be returned. Instead the NULL phy is returned,
875  * which can be passed to all other phy consumer calls.
877 struct phy *devm_of_phy_optional_get(struct device *dev, struct device_node *np,  in devm_of_phy_optional_get()
880 	struct phy *phy = devm_of_phy_get(dev, np, con_id);  in devm_of_phy_optional_get()  local
882 	if (PTR_ERR(phy) == -ENODEV)  in devm_of_phy_optional_get()
883 		phy = NULL;  in devm_of_phy_optional_get()
885 	if (IS_ERR(phy))  in devm_of_phy_optional_get()
886 		dev_err_probe(dev, PTR_ERR(phy), "failed to get PHY %pOF:%s",  in devm_of_phy_optional_get()
889 	return phy;  in devm_of_phy_optional_get()
894  * devm_of_phy_get_by_index() - lookup and obtain a reference to a phy by index.
895  * @dev: device that requests this phy
896  * @np: node containing the phy
897  * @index: index of the phy
899  * Gets the phy using _of_phy_get(), then gets a refcount to it,
905 struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,  in devm_of_phy_get_by_index()
908 	struct phy **ptr, *phy;  in devm_of_phy_get_by_index()  local
915 	phy = _of_phy_get(np, index);  in devm_of_phy_get_by_index()
916 	if (IS_ERR(phy)) {  in devm_of_phy_get_by_index()
918 		return phy;  in devm_of_phy_get_by_index()
921 	if (!try_module_get(phy->ops->owner)) {  in devm_of_phy_get_by_index()
926 	get_device(&phy->dev);  in devm_of_phy_get_by_index()
928 	*ptr = phy;  in devm_of_phy_get_by_index()
931 	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);  in devm_of_phy_get_by_index()
934 			dev_name(phy->dev.parent));  in devm_of_phy_get_by_index()
936 	return phy;  in devm_of_phy_get_by_index()
941  * phy_create() - create a new phy
942  * @dev: device that is creating the new phy
943  * @node: device node of the phy
944  * @ops: function pointers for performing phy operations
946  * Called to create a phy using phy framework.
948 struct phy *phy_create(struct device *dev, struct device_node *node,  in phy_create()
953 	struct phy *phy;  in phy_create()  local
958 	phy = kzalloc(sizeof(*phy), GFP_KERNEL);  in phy_create()
959 	if (!phy)  in phy_create()
969 	device_initialize(&phy->dev);  in phy_create()
970 	mutex_init(&phy->mutex);  in phy_create()
972 	phy->dev.class = phy_class;  in phy_create()
973 	phy->dev.parent = dev;  in phy_create()
974 	phy->dev.of_node = node ?: dev->of_node;  in phy_create()
975 	phy->id = id;  in phy_create()
976 	phy->ops = ops;  in phy_create()
978 	ret = dev_set_name(&phy->dev, "phy-%s.%d", dev_name(dev), id);  in phy_create()
982 	/* phy-supply */  in phy_create()
983 	phy->pwr = regulator_get_optional(&phy->dev, "phy");  in phy_create()
984 	if (IS_ERR(phy->pwr)) {  in phy_create()
985 		ret = PTR_ERR(phy->pwr);  in phy_create()
989 		phy->pwr = NULL;  in phy_create()
992 	ret = device_add(&phy->dev);  in phy_create()
997 		pm_runtime_enable(&phy->dev);  in phy_create()
998 		pm_runtime_no_callbacks(&phy->dev);  in phy_create()
1001 	phy->debugfs = debugfs_create_dir(dev_name(&phy->dev), phy_debugfs_root);  in phy_create()
1003 	return phy;  in phy_create()
1006 	put_device(&phy->dev);  /* calls phy_release() which frees resources */  in phy_create()
1010 	kfree(phy);  in phy_create()
1016  * devm_phy_create() - create a new phy
1017  * @dev: device that is creating the new phy
1018  * @node: device node of the phy
1019  * @ops: function pointers for performing phy operations
1021  * Creates a new PHY device adding it to the PHY class.
1022  * While at that, it also associates the device with the phy using devres.
1026 struct phy *devm_phy_create(struct device *dev, struct device_node *node,  in devm_phy_create()
1029 	struct phy **ptr, *phy;  in devm_phy_create()  local
1035 	phy = phy_create(dev, node, ops);  in devm_phy_create()
1036 	if (!IS_ERR(phy)) {  in devm_phy_create()
1037 		*ptr = phy;  in devm_phy_create()
1043 	return phy;  in devm_phy_create()
1048  * phy_destroy() - destroy the phy
1049  * @phy: the phy to be destroyed
1051  * Called to destroy the phy.
1053 void phy_destroy(struct phy *phy)  in phy_destroy()  argument
1055 	pm_runtime_disable(&phy->dev);  in phy_destroy()
1056 	device_unregister(&phy->dev);  in phy_destroy()
1061  * devm_phy_destroy() - destroy the PHY
1062  * @dev: device that wants to release this phy
1063  * @phy: the phy returned by devm_phy_get()
1065  * destroys the devres associated with this phy and invokes phy_destroy
1066  * to destroy the phy.
1068 void devm_phy_destroy(struct device *dev, struct phy *phy)  in devm_phy_destroy()  argument
1072 	r = devres_destroy(dev, devm_phy_consume, devm_phy_match, phy);  in devm_phy_destroy()
1073 	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");  in devm_phy_destroy()
1078  * __of_phy_provider_register() - create/register phy provider with the framework
1079  * @dev: struct device of the phy provider
1082  * @of_xlate: function pointer to obtain phy instance from phy provider
1085  * This is used in the case of dt boot for finding the phy instance from
1086  * phy provider.
1088  * If the PHY provider doesn't nest children directly but uses a separate
1097 	struct phy * (*of_xlate)(struct device *dev,  in __of_phy_provider_register()
1145  * __devm_of_phy_provider_register() - create/register phy provider with the
1147  * @dev: struct device of the phy provider
1150  * @of_xlate: function pointer to obtain phy instance from phy provider
1153  * This is used in the case of dt boot for finding the phy instance from
1154  * phy provider. While at that, it also associates the device with the
1155  * phy provider using devres. On driver detach, release function is invoked
1160 	struct phy * (*of_xlate)(struct device *dev,  in __devm_of_phy_provider_register()
1183  * of_phy_provider_unregister() - unregister phy provider from the framework
1184  * @phy_provider: phy provider returned by of_phy_provider_register()
1202  * devm_of_phy_provider_unregister() - remove phy provider from the framework
1203  * @dev: struct device of the phy provider
1204  * @phy_provider: phy provider returned by of_phy_provider_register()
1206  * destroys the devres associated with this phy provider and invokes
1207  * of_phy_provider_unregister to unregister the phy provider.
1216 	dev_WARN_ONCE(dev, r, "couldn't find PHY provider device resource\n");  in devm_of_phy_provider_unregister()
1221  * phy_release() - release the phy
1222  * @dev: the dev member within phy
1229 	struct phy *phy;  in phy_release()  local
1231 	phy = to_phy(dev);  in phy_release()
1233 	debugfs_remove_recursive(phy->debugfs);  in phy_release()
1234 	regulator_put(phy->pwr);  in phy_release()
1235 	ida_free(&phy_ida, phy->id);  in phy_release()
1236 	kfree(phy);  in phy_release()
1241 	phy_class = class_create("phy");  in phy_core_init()
1243 		pr_err("failed to create phy class --> %ld\n",  in phy_core_init()
1250 	phy_debugfs_root = debugfs_create_dir("phy", NULL);  in phy_core_init()