phy: add phy fixup unregister functions (f38e7a32) · Commits · 戴 / test

Documentation/networking/phy.txt

+9 −0

Original line number	Diff line number	Diff line
		@@ -407,6 +407,15 @@ Board Fixups
		The stubs set one of the two matching criteria, and set the other one to
		match anything.

		When phy_register_fixup() or _for_uid()/_for_id() is called at module,
		unregister fixup and free allocate memory are required.

		Call one of following function before unloading module.

		int phy_unregister_fixup(const char *phy_id, u32 phy_uid, u32 phy_uid_mask);
		int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
		int phy_register_fixup_for_id(const char *phy_id);

		Standards

		IEEE Standard 802.3: CSMA/CD Access Method and Physical Layer Specifications, Section Two:

drivers/net/phy/phy_device.c

+47 −0

Original line number	Diff line number	Diff line
		@@ -235,6 +235,53 @@ int phy_register_fixup_for_id(const char *bus_id,
		}
		EXPORT_SYMBOL(phy_register_fixup_for_id);

		/**
		* phy_unregister_fixup - remove a phy_fixup from the list
		* @bus_id: A string matches fixup->bus_id (or PHY_ANY_ID) in phy_fixup_list
		* @phy_uid: A phy id matches fixup->phy_id (or PHY_ANY_UID) in phy_fixup_list
		* @phy_uid_mask: Applied to phy_uid and fixup->phy_uid before comparison
		*/
		int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask)
		{
		struct list_head pos, n;
		struct phy_fixup *fixup;
		int ret;

		ret = -ENODEV;

		mutex_lock(&phy_fixup_lock);
		list_for_each_safe(pos, n, &phy_fixup_list) {
		fixup = list_entry(pos, struct phy_fixup, list);

		if ((!strcmp(fixup->bus_id, bus_id)) &&
		((fixup->phy_uid & phy_uid_mask) ==
		(phy_uid & phy_uid_mask))) {
		list_del(&fixup->list);
		kfree(fixup);
		ret = 0;
		break;
		}
		}
		mutex_unlock(&phy_fixup_lock);

		return ret;
		}
		EXPORT_SYMBOL(phy_unregister_fixup);

		/* Unregisters a fixup of any PHY with the UID in phy_uid */
		int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask)
		{
		return phy_unregister_fixup(PHY_ANY_ID, phy_uid, phy_uid_mask);
		}
		EXPORT_SYMBOL(phy_unregister_fixup_for_uid);

		/* Unregisters a fixup of the PHY with id string bus_id */
		int phy_unregister_fixup_for_id(const char *bus_id)
		{
		return phy_unregister_fixup(bus_id, PHY_ANY_UID, 0xffffffff);
		}
		EXPORT_SYMBOL(phy_unregister_fixup_for_id);

		/* Returns 1 if fixup matches phydev in bus_id and phy_uid.
		* Fixups can be set to match any in one or more fields.
		*/

include/linux/phy.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -860,6 +860,10 @@ int phy_register_fixup_for_id(const char *bus_id,
		int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
		int (run)(struct phy_device ));

		int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
		int phy_unregister_fixup_for_id(const char *bus_id);
		int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);

		int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
		int phy_get_eee_err(struct phy_device *phydev);
		int phy_ethtool_set_eee(struct phy_device phydev, struct ethtool_eee data);

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