1 files changed, 46 insertions, 67 deletions

diff --git a/include/linux/phy.h b/include/linux/phy.h
index b693b609b2f5..3a09d2bf69ea 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -244,7 +244,8 @@ struct phy_package_shared {
 };
 
 /* used as bit number in atomic bitops */
-#define PHY_SHARED_F_INIT_DONE 0
+#define PHY_SHARED_F_INIT_DONE  0
+#define PHY_SHARED_F_PROBE_DONE 1
 
 /*
  * The Bus class for PHYs.  Devices which provide access to
@@ -260,9 +261,6 @@ struct mii_bus {
 	int (*reset)(struct mii_bus *bus);
 	struct mdio_bus_stats stats[PHY_MAX_ADDR];
 
-	unsigned int is_managed:1;	/* is device-managed */
-	unsigned int is_managed_registered:1;
-
 	/*
 	 * A lock to ensure that only one thing can read/write
 	 * the MDIO bus at a time
@@ -295,9 +293,19 @@ struct mii_bus {
 
 	/* GPIO reset pulse width in microseconds */
 	int reset_delay_us;
+	/* GPIO reset deassert delay in microseconds */
+	int reset_post_delay_us;
 	/* RESET GPIO descriptor pointer */
 	struct gpio_desc *reset_gpiod;
 
+	/* bus capabilities, used for probing */
+	enum {
+		MDIOBUS_NO_CAP = 0,
+		MDIOBUS_C22,
+		MDIOBUS_C45,
+		MDIOBUS_C22_C45,
+	} probe_capabilities;
+
 	/* protect access to the shared element */
 	struct mutex shared_lock;
 
@@ -313,20 +321,11 @@ static inline struct mii_bus *mdiobus_alloc(void)
 }
 
 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
+int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
+			    struct module *owner);
 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
-static inline int devm_mdiobus_register(struct mii_bus *bus)
-{
-	int ret;
-
-	if (!bus->is_managed)
-		return -EPERM;
-
-	ret = mdiobus_register(bus);
-	if (!ret)
-		bus->is_managed_registered = 1;
-
-	return ret;
-}
+#define devm_mdiobus_register(dev, bus) \
+		__devm_mdiobus_register(dev, bus, THIS_MODULE)
 
 void mdiobus_unregister(struct mii_bus *bus);
 void mdiobus_free(struct mii_bus *bus);
@@ -337,7 +336,6 @@ static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
 }
 
 struct mii_bus *mdio_find_bus(const char *mdio_name);
-void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
 
 #define PHY_INTERRUPT_DISABLED	false
@@ -388,14 +386,18 @@ enum phy_state {
 	PHY_CABLETEST,
 };
 
+#define MDIO_MMD_NUM 32
+
 /**
  * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
- * @devices_in_package: Bit vector of devices present.
+ * @devices_in_package: IEEE 802.3 devices in package register value.
+ * @mmds_present: bit vector of MMDs present.
  * @device_ids: The device identifer for each present device.
  */
 struct phy_c45_device_ids {
 	u32 devices_in_package;
-	u32 device_ids[8];
+	u32 mmds_present;
+	u32 device_ids[MDIO_MMD_NUM];
 };
 
 struct macsec_context;
@@ -1385,6 +1387,9 @@ int genphy_c45_pma_read_abilities(struct phy_device *phydev);
 int genphy_c45_read_status(struct phy_device *phydev);
 int genphy_c45_config_aneg(struct phy_device *phydev);
 
+/* Generic C45 PHY driver */
+extern struct phy_driver genphy_c45_driver;
+
 /* The gen10g_* functions are the old Clause 45 stub */
 int gen10g_config_aneg(struct phy_device *phydev);
 
@@ -1431,6 +1436,10 @@ void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
 bool phy_validate_pause(struct phy_device *phydev,
 			struct ethtool_pauseparam *pp);
 void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause);
+
+s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
+			   const int *delay_values, int size, bool is_rx);
+
 void phy_resolve_pause(unsigned long *local_adv, unsigned long *partner_adv,
 		       bool *tx_pause, bool *rx_pause);
 
@@ -1467,51 +1476,10 @@ int __init mdio_bus_init(void);
 void mdio_bus_exit(void);
 #endif
 
-/* Inline function for use within net/core/ethtool.c (built-in) */
-static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
-{
-	if (!phydev->drv)
-		return -EIO;
-
-	mutex_lock(&phydev->lock);
-	phydev->drv->get_strings(phydev, data);
-	mutex_unlock(&phydev->lock);
-
-	return 0;
-}
-
-static inline int phy_ethtool_get_sset_count(struct phy_device *phydev)
-{
-	int ret;
-
-	if (!phydev->drv)
-		return -EIO;
-
-	if (phydev->drv->get_sset_count &&
-	    phydev->drv->get_strings &&
-	    phydev->drv->get_stats) {
-		mutex_lock(&phydev->lock);
-		ret = phydev->drv->get_sset_count(phydev);
-		mutex_unlock(&phydev->lock);
-
-		return ret;
-	}
-
-	return -EOPNOTSUPP;
-}
-
-static inline int phy_ethtool_get_stats(struct phy_device *phydev,
-					struct ethtool_stats *stats, u64 *data)
-{
-	if (!phydev->drv)
-		return -EIO;
-
-	mutex_lock(&phydev->lock);
-	phydev->drv->get_stats(phydev, stats, data);
-	mutex_unlock(&phydev->lock);
-
-	return 0;
-}
+int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
+int phy_ethtool_get_sset_count(struct phy_device *phydev);
+int phy_ethtool_get_stats(struct phy_device *phydev,
+			  struct ethtool_stats *stats, u64 *data);
 
 static inline int phy_package_read(struct phy_device *phydev, u32 regnum)
 {
@@ -1555,14 +1523,25 @@ static inline int __phy_package_write(struct phy_device *phydev,
 	return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
 }
 
-static inline bool phy_package_init_once(struct phy_device *phydev)
+static inline bool __phy_package_set_once(struct phy_device *phydev,
+					  unsigned int b)
 {
 	struct phy_package_shared *shared = phydev->shared;
 
 	if (!shared)
 		return false;
 
-	return !test_and_set_bit(PHY_SHARED_F_INIT_DONE, &shared->flags);
+	return !test_and_set_bit(b, &shared->flags);
+}
+
+static inline bool phy_package_init_once(struct phy_device *phydev)
+{
+	return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
+}
+
+static inline bool phy_package_probe_once(struct phy_device *phydev)
+{
+	return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
 }
 
 extern struct bus_type mdio_bus_type;