Lines Matching +full:ethernet +full:- +full:pse
1 // SPDX-License-Identifier: GPL-2.0+
32 #include <linux/pse-pd/pse.h>
240 put_device(&phydev->mdio.dev); in phy_device_free()
254 fwnode_handle_put(dev->fwnode); in phy_device_release()
273 struct device_driver *drv = phydev->mdio.dev.driver; in mdio_bus_phy_may_suspend()
275 struct net_device *netdev = phydev->attached_dev; in mdio_bus_phy_may_suspend()
277 if (!drv || !phydrv->suspend) in mdio_bus_phy_may_suspend()
281 * suspended as part of a prior call to phy_disconnect() -> in mdio_bus_phy_may_suspend()
282 * phy_detach() -> phy_suspend() because the parent netdev might be the in mdio_bus_phy_may_suspend()
288 if (netdev->wol_enabled) in mdio_bus_phy_may_suspend()
296 if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent)) in mdio_bus_phy_may_suspend()
303 if (device_may_wakeup(&netdev->dev)) in mdio_bus_phy_may_suspend()
307 return !phydev->suspended; in mdio_bus_phy_may_suspend()
314 if (phydev->mac_managed_pm) in mdio_bus_phy_suspend()
322 phydev->irq_suspended = 1; in mdio_bus_phy_suspend()
323 synchronize_irq(phydev->irq); in mdio_bus_phy_suspend()
327 * control, possibly with the phydev->lock held. Upon resume, netdev in mdio_bus_phy_suspend()
331 if (phydev->attached_dev && phydev->adjust_link) in mdio_bus_phy_suspend()
337 phydev->suspended_by_mdio_bus = 1; in mdio_bus_phy_suspend()
347 if (phydev->mac_managed_pm) in mdio_bus_phy_resume()
350 if (!phydev->suspended_by_mdio_bus) in mdio_bus_phy_resume()
353 phydev->suspended_by_mdio_bus = 0; in mdio_bus_phy_resume()
360 WARN_ON(phydev->state != PHY_HALTED && phydev->state != PHY_READY && in mdio_bus_phy_resume()
361 phydev->state != PHY_UP); in mdio_bus_phy_resume()
372 phydev->irq_suspended = 0; in mdio_bus_phy_resume()
373 synchronize_irq(phydev->irq); in mdio_bus_phy_resume()
378 if (phydev->irq_rerun) { in mdio_bus_phy_resume()
379 phydev->irq_rerun = 0; in mdio_bus_phy_resume()
380 enable_irq(phydev->irq); in mdio_bus_phy_resume()
381 irq_wake_thread(phydev->irq, phydev); in mdio_bus_phy_resume()
385 if (phydev->attached_dev && phydev->adjust_link) in mdio_bus_phy_resume()
395 * phy_register_fixup - creates a new phy_fixup and adds it to the list
396 * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
397 * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
399 * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
409 return -ENOMEM; in phy_register_fixup()
411 strscpy(fixup->bus_id, bus_id, sizeof(fixup->bus_id)); in phy_register_fixup()
412 fixup->phy_uid = phy_uid; in phy_register_fixup()
413 fixup->phy_uid_mask = phy_uid_mask; in phy_register_fixup()
414 fixup->run = run; in phy_register_fixup()
417 list_add_tail(&fixup->list, &phy_fixup_list); in phy_register_fixup()
441 * phy_unregister_fixup - remove a phy_fixup from the list
442 * @bus_id: A string matches fixup->bus_id (or PHY_ANY_ID) in phy_fixup_list
443 * @phy_uid: A phy id matches fixup->phy_id (or PHY_ANY_UID) in phy_fixup_list
444 * @phy_uid_mask: Applied to phy_uid and fixup->phy_uid before comparison
452 ret = -ENODEV; in phy_unregister_fixup()
458 if ((!strcmp(fixup->bus_id, bus_id)) && in phy_unregister_fixup()
459 phy_id_compare(fixup->phy_uid, phy_uid, phy_uid_mask)) { in phy_unregister_fixup()
460 list_del(&fixup->list); in phy_unregister_fixup()
491 if (strcmp(fixup->bus_id, phydev_name(phydev)) != 0) in phy_needs_fixup()
492 if (strcmp(fixup->bus_id, PHY_ANY_ID) != 0) in phy_needs_fixup()
495 if (!phy_id_compare(phydev->phy_id, fixup->phy_uid, in phy_needs_fixup()
496 fixup->phy_uid_mask)) in phy_needs_fixup()
497 if (fixup->phy_uid != PHY_ANY_UID) in phy_needs_fixup()
511 int err = fixup->run(phydev); in phy_scan_fixups()
517 phydev->has_fixups = true; in phy_scan_fixups()
529 const int num_ids = ARRAY_SIZE(phydev->c45_ids.device_ids); in phy_bus_match()
532 if (!(phydrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY)) in phy_bus_match()
535 if (phydrv->match_phy_device) in phy_bus_match()
536 return phydrv->match_phy_device(phydev); in phy_bus_match()
538 if (phydev->is_c45) { in phy_bus_match()
540 if (phydev->c45_ids.device_ids[i] == 0xffffffff) in phy_bus_match()
543 if (phy_id_compare(phydev->c45_ids.device_ids[i], in phy_bus_match()
544 phydrv->phy_id, phydrv->phy_id_mask)) in phy_bus_match()
549 return phy_id_compare(phydev->phy_id, phydrv->phy_id, in phy_bus_match()
550 phydrv->phy_id_mask); in phy_bus_match()
559 return sysfs_emit(buf, "0x%.8lx\n", (unsigned long)phydev->phy_id); in phy_id_show()
572 mode = phy_modes(phydev->interface); in phy_interface_show()
584 return sysfs_emit(buf, "%d\n", phydev->has_fixups); in phy_has_fixups_show()
594 return sysfs_emit(buf, "0x%08x\n", phydev->dev_flags); in phy_dev_flags_show()
622 * Accept -ENOENT because this may occur in case no initramfs exists, in phy_request_driver_module()
625 if (IS_ENABLED(CONFIG_MODULES) && ret < 0 && ret != -ENOENT) { in phy_request_driver_module()
645 return ERR_PTR(-ENOMEM); in phy_device_create()
647 mdiodev = &dev->mdio; in phy_device_create()
648 mdiodev->dev.parent = &bus->dev; in phy_device_create()
649 mdiodev->dev.bus = &mdio_bus_type; in phy_device_create()
650 mdiodev->dev.type = &mdio_bus_phy_type; in phy_device_create()
651 mdiodev->bus = bus; in phy_device_create()
652 mdiodev->bus_match = phy_bus_match; in phy_device_create()
653 mdiodev->addr = addr; in phy_device_create()
654 mdiodev->flags = MDIO_DEVICE_FLAG_PHY; in phy_device_create()
655 mdiodev->device_free = phy_mdio_device_free; in phy_device_create()
656 mdiodev->device_remove = phy_mdio_device_remove; in phy_device_create()
657 mdiodev->reset_state = -1; in phy_device_create()
659 dev->speed = SPEED_UNKNOWN; in phy_device_create()
660 dev->duplex = DUPLEX_UNKNOWN; in phy_device_create()
661 dev->pause = 0; in phy_device_create()
662 dev->asym_pause = 0; in phy_device_create()
663 dev->link = 0; in phy_device_create()
664 dev->port = PORT_TP; in phy_device_create()
665 dev->interface = PHY_INTERFACE_MODE_GMII; in phy_device_create()
667 dev->autoneg = AUTONEG_ENABLE; in phy_device_create()
669 dev->pma_extable = -ENODATA; in phy_device_create()
670 dev->is_c45 = is_c45; in phy_device_create()
671 dev->phy_id = phy_id; in phy_device_create()
673 dev->c45_ids = *c45_ids; in phy_device_create()
674 dev->irq = bus->irq[addr]; in phy_device_create()
676 dev_set_name(&mdiodev->dev, PHY_ID_FMT, bus->id, addr); in phy_device_create()
677 device_initialize(&mdiodev->dev); in phy_device_create()
679 dev->state = PHY_DOWN; in phy_device_create()
680 INIT_LIST_HEAD(&dev->leds); in phy_device_create()
682 mutex_init(&dev->lock); in phy_device_create()
683 INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine); in phy_device_create()
690 * -- because it relies on the device staying around for long in phy_device_create()
696 const int num_ids = ARRAY_SIZE(c45_ids->device_ids); in phy_device_create()
700 if (c45_ids->device_ids[i] == 0xffffffff) in phy_device_create()
704 c45_ids->device_ids[i]); in phy_device_create()
713 put_device(&mdiodev->dev); in phy_device_create()
721 /* phy_c45_probe_present - checks to see if a MMD is present in the package
743 /* get_phy_c45_devs_in_pkg - reads a MMD's devices in package registers.
752 * Returns: 0 on success, -EIO on failure.
761 return -EIO; in get_phy_c45_devs_in_pkg()
766 return -EIO; in get_phy_c45_devs_in_pkg()
773 * get_phy_c45_ids - reads the specified addr for its 802.3-c45 IDs.
782 * Returns zero on success, %-EIO on bus access error, or %-ENODEV if
788 const int num_ids = ARRAY_SIZE(c45_ids->device_ids); in get_phy_c45_ids()
792 /* Find first non-zero Devices In package. Device zero is reserved in get_phy_c45_ids()
799 * address before reading the devices-in-package in get_phy_c45_ids()
806 return -EIO; in get_phy_c45_ids()
813 return -EIO; in get_phy_c45_ids()
823 return -EIO; in get_phy_c45_ids()
827 return -ENODEV; in get_phy_c45_ids()
850 return -EIO; in get_phy_c45_ids()
851 c45_ids->device_ids[i] = phy_reg << 16; in get_phy_c45_ids()
855 return -EIO; in get_phy_c45_ids()
856 c45_ids->device_ids[i] |= phy_reg; in get_phy_c45_ids()
859 c45_ids->devices_in_package = devs_in_pkg; in get_phy_c45_ids()
861 c45_ids->mmds_present = devs_in_pkg & ~BIT(0); in get_phy_c45_ids()
867 * get_phy_c22_id - reads the specified addr for its clause 22 ID.
874 * valid, %-EIO on bus access error, or %-ENODEV if no device responds
884 /* returning -ENODEV doesn't stop bus scanning */ in get_phy_c22_id()
885 return (phy_reg == -EIO || phy_reg == -ENODEV) ? -ENODEV : -EIO; in get_phy_c22_id()
893 /* returning -ENODEV doesn't stop bus scanning */ in get_phy_c22_id()
894 return (phy_reg == -EIO || phy_reg == -ENODEV) ? -ENODEV : -EIO; in get_phy_c22_id()
901 return -ENODEV; in get_phy_c22_id()
907 * ethernet-phy-idAAAA.BBBB.
919 if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) != 2) in fwnode_get_phy_id()
920 return -EINVAL; in fwnode_get_phy_id()
928 * get_phy_device - reads the specified PHY device and returns its @phy_device
943 * Returns an allocated &struct phy_device on success, %-ENODEV if there is
944 * no PHY present, or %-EIO on bus access error.
969 if (!is_c45 && phy_id == 0 && bus->read_c45) { in get_phy_device()
981 * phy_device_register - Register the phy device on the MDIO bus
988 err = mdiobus_register_device(&phydev->mdio); in phy_device_register()
1002 err = device_add(&phydev->mdio.dev); in phy_device_register()
1014 mdiobus_unregister_device(&phydev->mdio); in phy_device_register()
1020 * phy_device_remove - Remove a previously registered phy device from the MDIO bus
1029 unregister_mii_timestamper(phydev->mii_ts); in phy_device_remove()
1030 pse_control_put(phydev->psec); in phy_device_remove()
1032 device_del(&phydev->mdio.dev); in phy_device_remove()
1037 mdiobus_unregister_device(&phydev->mdio); in phy_device_remove()
1042 * phy_get_c45_ids - Read 802.3-c45 IDs for phy device.
1043 * @phydev: phy_device structure to read 802.3-c45 IDs
1045 * Returns zero on success, %-EIO on bus access error, or %-ENODEV if
1050 return get_phy_c45_ids(phydev->mdio.bus, phydev->mdio.addr, in phy_get_c45_ids()
1051 &phydev->c45_ids); in phy_get_c45_ids()
1056 * phy_find_first - finds the first PHY device on the bus
1075 struct net_device *netdev = phydev->attached_dev; in phy_link_change()
1081 phydev->adjust_link(netdev); in phy_link_change()
1082 if (phydev->mii_ts && phydev->mii_ts->link_state) in phy_link_change()
1083 phydev->mii_ts->link_state(phydev->mii_ts, phydev); in phy_link_change()
1087 * phy_prepare_link - prepares the PHY layer to monitor link status
1101 phydev->adjust_link = handler; in phy_prepare_link()
1105 * phy_connect_direct - connect an ethernet device to a specific phy_device
1118 return -EINVAL; in phy_connect_direct()
1120 rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface); in phy_connect_direct()
1133 * phy_connect - connect an ethernet device to a PHY device
1139 * Description: Convenience function for connecting ethernet
1161 return ERR_PTR(-ENODEV); in phy_connect()
1175 * phy_disconnect - disable interrupts, stop state machine, and detach a PHY
1187 phydev->adjust_link = NULL; in phy_disconnect()
1194 * phy_poll_reset - Safely wait until a PHY reset has properly completed
1206 * even *REQUIRE* a soft-reset to properly restart autonegotiation. In an
1209 * and reapply all driver-specific and board-specific fixups.
1234 if (!phydev->drv) in phy_init_hw()
1237 if (phydev->drv->soft_reset) { in phy_init_hw()
1238 ret = phydev->drv->soft_reset(phydev); in phy_init_hw()
1243 phydev->suspended = 0; in phy_init_hw()
1250 phy_interface_zero(phydev->possible_interfaces); in phy_init_hw()
1252 if (phydev->drv->config_init) { in phy_init_hw()
1253 ret = phydev->drv->config_init(phydev); in phy_init_hw()
1258 if (phydev->drv->config_intr) { in phy_init_hw()
1259 ret = phydev->drv->config_intr(phydev); in phy_init_hw()
1280 switch(phydev->irq) { in phy_attached_info_irq()
1288 snprintf(irq_num, sizeof(irq_num), "%d", phydev->irq); in phy_attached_info_irq()
1299 const char *unbound = phydev->drv ? "" : "[unbound] "; in phy_attached_print()
1321 struct net_device *dev = phydev->attached_dev; in phy_sysfs_create_links()
1327 err = sysfs_create_link(&phydev->mdio.dev.kobj, &dev->dev.kobj, in phy_sysfs_create_links()
1332 err = sysfs_create_link_nowarn(&dev->dev.kobj, in phy_sysfs_create_links()
1333 &phydev->mdio.dev.kobj, in phy_sysfs_create_links()
1336 dev_err(&dev->dev, "could not add device link to %s err %d\n", in phy_sysfs_create_links()
1337 kobject_name(&phydev->mdio.dev.kobj), in phy_sysfs_create_links()
1339 /* non-fatal - some net drivers can use one netdevice in phy_sysfs_create_links()
1344 phydev->sysfs_links = true; in phy_sysfs_create_links()
1353 return sysfs_emit(buf, "%d\n", !phydev->attached_dev); in phy_standalone_show()
1358 * phy_sfp_attach - attach the SFP bus to the PHY upstream network device
1368 if (phydev->attached_dev) in phy_sfp_attach()
1369 phydev->attached_dev->sfp_bus = bus; in phy_sfp_attach()
1370 phydev->sfp_bus_attached = true; in phy_sfp_attach()
1375 * phy_sfp_detach - detach the SFP bus from the PHY upstream network device
1385 if (phydev->attached_dev) in phy_sfp_detach()
1386 phydev->attached_dev->sfp_bus = NULL; in phy_sfp_detach()
1387 phydev->sfp_bus_attached = false; in phy_sfp_detach()
1392 * phy_sfp_probe - probe for a SFP cage attached to this PHY device
1402 if (phydev->mdio.dev.fwnode) { in phy_sfp_probe()
1403 bus = sfp_bus_find_fwnode(phydev->mdio.dev.fwnode); in phy_sfp_probe()
1407 phydev->sfp_bus = bus; in phy_sfp_probe()
1417 * phy_attach_direct - attach a network device to a given PHY device pointer
1434 struct mii_bus *bus = phydev->mdio.bus; in phy_attach_direct()
1435 struct device *d = &phydev->mdio.dev; in phy_attach_direct()
1440 /* For Ethernet device drivers that register their own MDIO bus, we in phy_attach_direct()
1441 * will have bus->owner match ndev_mod, so we do not want to increment in phy_attach_direct()
1442 * our own module->refcnt here, otherwise we would not be able to in phy_attach_direct()
1446 ndev_owner = dev->dev.parent->driver->owner; in phy_attach_direct()
1447 if (ndev_owner != bus->owner && !try_module_get(bus->owner)) { in phy_attach_direct()
1449 return -EIO; in phy_attach_direct()
1457 if (!d->driver) { in phy_attach_direct()
1458 if (phydev->is_c45) in phy_attach_direct()
1459 d->driver = &genphy_c45_driver.mdiodrv.driver; in phy_attach_direct()
1461 d->driver = &genphy_driver.mdiodrv.driver; in phy_attach_direct()
1466 if (!try_module_get(d->driver->owner)) { in phy_attach_direct()
1468 err = -EIO; in phy_attach_direct()
1473 err = d->driver->probe(d); in phy_attach_direct()
1481 if (phydev->attached_dev) { in phy_attach_direct()
1482 dev_err(&dev->dev, "PHY already attached\n"); in phy_attach_direct()
1483 err = -EBUSY; in phy_attach_direct()
1487 phydev->phy_link_change = phy_link_change; in phy_attach_direct()
1489 phydev->attached_dev = dev; in phy_attach_direct()
1490 dev->phydev = phydev; in phy_attach_direct()
1492 if (phydev->sfp_bus_attached) in phy_attach_direct()
1493 dev->sfp_bus = phydev->sfp_bus; in phy_attach_direct()
1496 /* Some Ethernet drivers try to connect to a PHY device before in phy_attach_direct()
1497 * calling register_netdevice() -> netdev_register_kobject() and in phy_attach_direct()
1498 * does the dev->dev.kobj initialization. Here we only check for in phy_attach_direct()
1504 phydev->sysfs_links = false; in phy_attach_direct()
1508 if (!phydev->attached_dev) { in phy_attach_direct()
1509 err = sysfs_create_file(&phydev->mdio.dev.kobj, in phy_attach_direct()
1515 phydev->dev_flags |= flags; in phy_attach_direct()
1517 phydev->interface = interface; in phy_attach_direct()
1519 phydev->state = PHY_READY; in phy_attach_direct()
1521 phydev->interrupts = PHY_INTERRUPT_DISABLED; in phy_attach_direct()
1527 if (phydev->dev_flags & PHY_F_NO_IRQ) in phy_attach_direct()
1528 phydev->irq = PHY_POLL; in phy_attach_direct()
1536 phydev->port = PORT_MII; in phy_attach_direct()
1542 netif_carrier_off(phydev->attached_dev); in phy_attach_direct()
1553 if (!phydev->is_on_sfp_module) in phy_attach_direct()
1561 if (dev && phydev->mdio.bus->parent && dev->dev.parent != phydev->mdio.bus->parent) in phy_attach_direct()
1562 phydev->devlink = device_link_add(dev->dev.parent, &phydev->mdio.dev, in phy_attach_direct()
1573 module_put(d->driver->owner); in phy_attach_direct()
1574 d->driver = NULL; in phy_attach_direct()
1577 if (ndev_owner != bus->owner) in phy_attach_direct()
1578 module_put(bus->owner); in phy_attach_direct()
1584 * phy_attach - attach a network device to a particular PHY device
1601 return ERR_PTR(-EINVAL); in phy_attach()
1609 return ERR_PTR(-ENODEV); in phy_attach()
1613 rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface); in phy_attach()
1625 struct device *d = &phydev->mdio.dev; in phy_driver_is_genphy_kind()
1628 if (!phydev->drv) in phy_driver_is_genphy_kind()
1632 ret = d->driver == driver; in phy_driver_is_genphy_kind()
1653 * phy_package_join - join a common PHY group
1657 * @priv_size: if non-zero allocate this amount of bytes for private data
1674 * allocated. If priv_size is non-zero, the given amount of bytes are
1682 struct mii_bus *bus = phydev->mdio.bus; in phy_package_join()
1687 return -EINVAL; in phy_package_join()
1689 mutex_lock(&bus->shared_lock); in phy_package_join()
1690 shared = bus->shared[base_addr]; in phy_package_join()
1692 ret = -ENOMEM; in phy_package_join()
1697 shared->priv = kzalloc(priv_size, GFP_KERNEL); in phy_package_join()
1698 if (!shared->priv) in phy_package_join()
1700 shared->priv_size = priv_size; in phy_package_join()
1702 shared->base_addr = base_addr; in phy_package_join()
1703 refcount_set(&shared->refcnt, 1); in phy_package_join()
1704 bus->shared[base_addr] = shared; in phy_package_join()
1706 ret = -EINVAL; in phy_package_join()
1707 if (priv_size && priv_size != shared->priv_size) in phy_package_join()
1709 refcount_inc(&shared->refcnt); in phy_package_join()
1711 mutex_unlock(&bus->shared_lock); in phy_package_join()
1713 phydev->shared = shared; in phy_package_join()
1720 mutex_unlock(&bus->shared_lock); in phy_package_join()
1726 * phy_package_leave - leave a common PHY group
1731 * freed. Resets the phydev->shared pointer to NULL.
1735 struct phy_package_shared *shared = phydev->shared; in phy_package_leave()
1736 struct mii_bus *bus = phydev->mdio.bus; in phy_package_leave()
1741 if (refcount_dec_and_mutex_lock(&shared->refcnt, &bus->shared_lock)) { in phy_package_leave()
1742 bus->shared[shared->base_addr] = NULL; in phy_package_leave()
1743 mutex_unlock(&bus->shared_lock); in phy_package_leave()
1744 kfree(shared->priv); in phy_package_leave()
1748 phydev->shared = NULL; in phy_package_leave()
1758 * devm_phy_package_join - resource managed phy_package_join()
1763 * @priv_size: if non-zero allocate this amount of bytes for private data
1778 return -ENOMEM; in devm_phy_package_join()
1794 * phy_detach - detach a PHY device from its network device
1802 struct net_device *dev = phydev->attached_dev; in phy_detach()
1806 if (phydev->devlink) in phy_detach()
1807 device_link_del(phydev->devlink); in phy_detach()
1809 if (phydev->sysfs_links) { in phy_detach()
1811 sysfs_remove_link(&dev->dev.kobj, "phydev"); in phy_detach()
1812 sysfs_remove_link(&phydev->mdio.dev.kobj, "attached_dev"); in phy_detach()
1815 if (!phydev->attached_dev) in phy_detach()
1816 sysfs_remove_file(&phydev->mdio.dev.kobj, in phy_detach()
1821 phydev->attached_dev->phydev = NULL; in phy_detach()
1822 phydev->attached_dev = NULL; in phy_detach()
1824 phydev->phylink = NULL; in phy_detach()
1826 if (!phydev->is_on_sfp_module) in phy_detach()
1829 if (phydev->mdio.dev.driver) in phy_detach()
1830 module_put(phydev->mdio.dev.driver->owner); in phy_detach()
1832 /* If the device had no specific driver before (i.e. - it in phy_detach()
1839 device_release_driver(&phydev->mdio.dev); in phy_detach()
1846 * a use-after-free bug by reading the underlying bus first. in phy_detach()
1848 bus = phydev->mdio.bus; in phy_detach()
1850 put_device(&phydev->mdio.dev); in phy_detach()
1852 ndev_owner = dev->dev.parent->driver->owner; in phy_detach()
1853 if (ndev_owner != bus->owner) in phy_detach()
1854 module_put(bus->owner); in phy_detach()
1861 struct net_device *netdev = phydev->attached_dev; in phy_suspend()
1862 struct phy_driver *phydrv = phydev->drv; in phy_suspend()
1865 if (phydev->suspended) in phy_suspend()
1869 phydev->wol_enabled = wol.wolopts || (netdev && netdev->wol_enabled); in phy_suspend()
1871 if (phydev->wol_enabled && !(phydrv->flags & PHY_ALWAYS_CALL_SUSPEND)) in phy_suspend()
1872 return -EBUSY; in phy_suspend()
1874 if (!phydrv || !phydrv->suspend) in phy_suspend()
1877 ret = phydrv->suspend(phydev); in phy_suspend()
1879 phydev->suspended = true; in phy_suspend()
1887 struct phy_driver *phydrv = phydev->drv; in __phy_resume()
1890 lockdep_assert_held(&phydev->lock); in __phy_resume()
1892 if (!phydrv || !phydrv->resume) in __phy_resume()
1895 ret = phydrv->resume(phydev); in __phy_resume()
1897 phydev->suspended = false; in __phy_resume()
1907 mutex_lock(&phydev->lock); in phy_resume()
1909 mutex_unlock(&phydev->lock); in phy_resume()
1919 if (!phydev->drv) in phy_loopback()
1920 return -EIO; in phy_loopback()
1922 mutex_lock(&phydev->lock); in phy_loopback()
1924 if (enable && phydev->loopback_enabled) { in phy_loopback()
1925 ret = -EBUSY; in phy_loopback()
1929 if (!enable && !phydev->loopback_enabled) { in phy_loopback()
1930 ret = -EINVAL; in phy_loopback()
1934 if (phydev->drv->set_loopback) in phy_loopback()
1935 ret = phydev->drv->set_loopback(phydev, enable); in phy_loopback()
1942 phydev->loopback_enabled = enable; in phy_loopback()
1945 mutex_unlock(&phydev->lock); in phy_loopback()
1951 * phy_reset_after_clk_enable - perform a PHY reset if needed
1961 if (!phydev || !phydev->drv) in phy_reset_after_clk_enable()
1962 return -ENODEV; in phy_reset_after_clk_enable()
1964 if (phydev->drv->flags & PHY_RST_AFTER_CLK_EN) { in phy_reset_after_clk_enable()
1977 * genphy_config_advert - sanitize and advertise auto-negotiation parameters
1991 linkmode_and(phydev->advertising, phydev->advertising, in genphy_config_advert()
1992 phydev->supported); in genphy_config_advert()
1994 adv = linkmode_adv_to_mii_adv_t(phydev->advertising); in genphy_config_advert()
2010 /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all in genphy_config_advert()
2017 adv = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising); in genphy_config_advert()
2031 * genphy_c37_config_advert - sanitize and advertise auto-negotiation parameters
2038 * for Clause 37 1000Base-X mode.
2045 linkmode_and(phydev->advertising, phydev->advertising, in genphy_c37_config_advert()
2046 phydev->supported); in genphy_c37_config_advert()
2049 phydev->advertising)) in genphy_c37_config_advert()
2052 phydev->advertising)) in genphy_c37_config_advert()
2055 phydev->advertising)) in genphy_c37_config_advert()
2065 * genphy_config_eee_advert - disable unwanted eee mode advertisement
2069 * efficent ethernet modes. Returns 0 if the PHY's advertisement hasn't
2077 if (!phydev->eee_broken_modes) in genphy_config_eee_advert()
2081 phydev->eee_broken_modes, 0); in genphy_config_eee_advert()
2088 * genphy_setup_forced - configures/forces speed/duplex from @phydev
2099 phydev->pause = 0; in genphy_setup_forced()
2100 phydev->asym_pause = 0; in genphy_setup_forced()
2102 ctl = mii_bmcr_encode_fixed(phydev->speed, phydev->duplex); in genphy_setup_forced()
2113 if (!phydev->is_gigabit_capable) in genphy_setup_master_slave()
2116 switch (phydev->master_slave_set) { in genphy_setup_master_slave()
2133 return -EOPNOTSUPP; in genphy_setup_master_slave()
2146 phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN; in genphy_read_master_slave()
2147 phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN; in genphy_read_master_slave()
2171 } else if (phydev->link) { in genphy_read_master_slave()
2181 phydev->master_slave_get = cfg; in genphy_read_master_slave()
2182 phydev->master_slave_state = state; in genphy_read_master_slave()
2189 * genphy_restart_aneg - Enable and Restart Autonegotiation
2201 * genphy_check_and_restart_aneg - Enable and restart auto-negotiation
2205 * Check, and restart auto-negotiation if needed.
2231 * __genphy_config_aneg - restart auto-negotiation or write BMCR
2235 * Description: If auto-negotiation is enabled, we configure the
2236 * advertising, and then restart auto-negotiation. If it is not
2255 if (AUTONEG_ENABLE != phydev->autoneg) in __genphy_config_aneg()
2269 * genphy_c37_config_aneg - restart auto-negotiation or write BMCR
2272 * Description: If auto-negotiation is enabled, we configure the
2273 * advertising, and then restart auto-negotiation. If it is not
2275 * for use with Clause 37 1000Base-X mode.
2281 if (phydev->autoneg != AUTONEG_ENABLE) in genphy_c37_config_aneg()
2317 * genphy_aneg_done - return auto-negotiation status
2321 * auto-negotiation is incomplete, or if there was an error.
2322 * Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
2333 * genphy_update_link - update link status in @phydev
2336 * Description: Update the value in phydev->link to reflect the
2355 * drops can be detected. Do not double-read the status in genphy_update_link()
2359 if (!phy_polling_mode(phydev) || !phydev->link) { in genphy_update_link()
2372 phydev->link = status & BMSR_LSTATUS ? 1 : 0; in genphy_update_link()
2373 phydev->autoneg_complete = status & BMSR_ANEGCOMPLETE ? 1 : 0; in genphy_update_link()
2378 if (phydev->autoneg == AUTONEG_ENABLE && !phydev->autoneg_complete) in genphy_update_link()
2379 phydev->link = 0; in genphy_update_link()
2389 if (phydev->autoneg == AUTONEG_ENABLE) { in genphy_read_lpa()
2390 if (!phydev->autoneg_complete) { in genphy_read_lpa()
2391 mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, in genphy_read_lpa()
2393 mii_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, 0); in genphy_read_lpa()
2397 if (phydev->is_gigabit_capable) { in genphy_read_lpa()
2412 return -ENOLINK; in genphy_read_lpa()
2415 mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, in genphy_read_lpa()
2423 mii_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, lpa); in genphy_read_lpa()
2425 linkmode_zero(phydev->lp_advertising); in genphy_read_lpa()
2433 * genphy_read_status_fixed - read the link parameters for !aneg mode
2447 phydev->duplex = DUPLEX_FULL; in genphy_read_status_fixed()
2449 phydev->duplex = DUPLEX_HALF; in genphy_read_status_fixed()
2452 phydev->speed = SPEED_1000; in genphy_read_status_fixed()
2454 phydev->speed = SPEED_100; in genphy_read_status_fixed()
2456 phydev->speed = SPEED_10; in genphy_read_status_fixed()
2463 * genphy_read_status - check the link status and update current link state
2473 int err, old_link = phydev->link; in genphy_read_status()
2481 if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link) in genphy_read_status()
2484 phydev->master_slave_get = MASTER_SLAVE_CFG_UNSUPPORTED; in genphy_read_status()
2485 phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED; in genphy_read_status()
2486 phydev->speed = SPEED_UNKNOWN; in genphy_read_status()
2487 phydev->duplex = DUPLEX_UNKNOWN; in genphy_read_status()
2488 phydev->pause = 0; in genphy_read_status()
2489 phydev->asym_pause = 0; in genphy_read_status()
2491 if (phydev->is_gigabit_capable) { in genphy_read_status()
2501 if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete) { in genphy_read_status()
2503 } else if (phydev->autoneg == AUTONEG_DISABLE) { in genphy_read_status()
2514 * genphy_c37_read_status - check the link status and update current link state
2519 * advertises. This function is for Clause 37 1000Base-X mode.
2523 int lpa, err, old_link = phydev->link; in genphy_c37_read_status()
2531 if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link) in genphy_c37_read_status()
2534 phydev->duplex = DUPLEX_UNKNOWN; in genphy_c37_read_status()
2535 phydev->pause = 0; in genphy_c37_read_status()
2536 phydev->asym_pause = 0; in genphy_c37_read_status()
2538 if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete) { in genphy_c37_read_status()
2544 phydev->lp_advertising, lpa & LPA_LPACK); in genphy_c37_read_status()
2546 phydev->lp_advertising, lpa & LPA_1000XFULL); in genphy_c37_read_status()
2548 phydev->lp_advertising, lpa & LPA_1000XPAUSE); in genphy_c37_read_status()
2550 phydev->lp_advertising, in genphy_c37_read_status()
2554 } else if (phydev->autoneg == AUTONEG_DISABLE) { in genphy_c37_read_status()
2561 phydev->duplex = DUPLEX_FULL; in genphy_c37_read_status()
2563 phydev->duplex = DUPLEX_HALF; in genphy_c37_read_status()
2571 * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
2584 if (phydev->autoneg == AUTONEG_ENABLE) in genphy_soft_reset()
2595 phydev->suspended = 0; in genphy_soft_reset()
2602 if (phydev->autoneg == AUTONEG_DISABLE) in genphy_soft_reset()
2623 * genphy_read_abilities - read PHY abilities from Clause 22 registers
2627 * phydev->supported accordingly.
2637 phydev->supported); in genphy_read_abilities()
2643 linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported, in genphy_read_abilities()
2646 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, phydev->supported, in genphy_read_abilities()
2648 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, phydev->supported, in genphy_read_abilities()
2650 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, phydev->supported, in genphy_read_abilities()
2652 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, phydev->supported, in genphy_read_abilities()
2661 phydev->supported, val & ESTATUS_1000_TFULL); in genphy_read_abilities()
2663 phydev->supported, val & ESTATUS_1000_THALF); in genphy_read_abilities()
2665 phydev->supported, val & ESTATUS_1000_XFULL); in genphy_read_abilities()
2683 return -EOPNOTSUPP; in genphy_read_mmd_unsupported()
2690 return -EOPNOTSUPP; in genphy_write_mmd_unsupported()
2712 ctl |= mii_bmcr_encode_fixed(phydev->speed, phydev->duplex); in genphy_loopback()
2732 * phy_remove_link_mode - Remove a supported link mode
2742 linkmode_clear_bit(link_mode, phydev->supported); in phy_remove_link_mode()
2756 * phy_advertise_supported - Advertise all supported modes
2766 linkmode_copy(new, phydev->supported); in phy_advertise_supported()
2767 phy_copy_pause_bits(new, phydev->advertising); in phy_advertise_supported()
2768 linkmode_copy(phydev->advertising, new); in phy_advertise_supported()
2773 * phy_support_sym_pause - Enable support of symmetrical pause
2781 linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported); in phy_support_sym_pause()
2782 phy_copy_pause_bits(phydev->advertising, phydev->supported); in phy_support_sym_pause()
2787 * phy_support_asym_pause - Enable support of asym pause
2794 phy_copy_pause_bits(phydev->advertising, phydev->supported); in phy_support_asym_pause()
2799 * phy_set_sym_pause - Configure symmetric Pause
2812 linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported); in phy_set_sym_pause()
2816 phydev->supported); in phy_set_sym_pause()
2818 linkmode_copy(phydev->advertising, phydev->supported); in phy_set_sym_pause()
2823 * phy_set_asym_pause - Configure Pause and Asym Pause
2837 linkmode_copy(oldadv, phydev->advertising); in phy_set_asym_pause()
2838 linkmode_set_pause(phydev->advertising, tx, rx); in phy_set_asym_pause()
2840 if (!linkmode_equal(oldadv, phydev->advertising) && in phy_set_asym_pause()
2841 phydev->autoneg) in phy_set_asym_pause()
2847 * phy_validate_pause - Test if the PHY/MAC support the pause configuration
2859 phydev->supported) && pp->rx_pause) in phy_validate_pause()
2863 phydev->supported) && in phy_validate_pause()
2864 pp->rx_pause != pp->tx_pause) in phy_validate_pause()
2872 * phy_get_pause - resolve negotiated pause modes
2885 if (phydev->duplex != DUPLEX_FULL) { in phy_get_pause()
2891 return linkmode_resolve_pause(phydev->advertising, in phy_get_pause()
2892 phydev->lp_advertising, in phy_get_pause()
2912 return -EINVAL; in phy_get_int_delay_property()
2917 * phy_get_internal_delay - returns the index of the internal delay
2930 * Return -EINVAL if the delay is invalid or cannot be found.
2939 delay = phy_get_int_delay_property(dev, "rx-internal-delay-ps"); in phy_get_internal_delay()
2941 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || in phy_get_internal_delay()
2942 phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) in phy_get_internal_delay()
2949 delay = phy_get_int_delay_property(dev, "tx-internal-delay-ps"); in phy_get_internal_delay()
2951 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || in phy_get_internal_delay()
2952 phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) in phy_get_internal_delay()
2965 if (delay < delay_values[0] || delay > delay_values[size - 1]) { in phy_get_internal_delay()
2967 return -EINVAL; in phy_get_internal_delay()
2978 if (delay > delay_values[i - 1] && in phy_get_internal_delay()
2980 if (delay - delay_values[i - 1] < in phy_get_internal_delay()
2981 delay_values[i] - delay) in phy_get_internal_delay()
2982 return i - 1; in phy_get_internal_delay()
2991 return -EINVAL; in phy_get_internal_delay()
2997 return phydrv->config_intr && phydrv->handle_interrupt; in phy_drv_supports_irq()
3004 struct phy_device *phydev = phyled->phydev; in phy_led_set_brightness()
3007 mutex_lock(&phydev->lock); in phy_led_set_brightness()
3008 err = phydev->drv->led_brightness_set(phydev, phyled->index, value); in phy_led_set_brightness()
3009 mutex_unlock(&phydev->lock); in phy_led_set_brightness()
3019 struct phy_device *phydev = phyled->phydev; in phy_led_blink_set()
3022 mutex_lock(&phydev->lock); in phy_led_blink_set()
3023 err = phydev->drv->led_blink_set(phydev, phyled->index, in phy_led_blink_set()
3025 mutex_unlock(&phydev->lock); in phy_led_blink_set()
3034 struct phy_device *phydev = phyled->phydev; in phy_led_hw_control_get_device()
3036 if (phydev->attached_dev) in phy_led_hw_control_get_device()
3037 return &phydev->attached_dev->dev; in phy_led_hw_control_get_device()
3046 struct phy_device *phydev = phyled->phydev; in phy_led_hw_control_get()
3049 mutex_lock(&phydev->lock); in phy_led_hw_control_get()
3050 err = phydev->drv->led_hw_control_get(phydev, phyled->index, rules); in phy_led_hw_control_get()
3051 mutex_unlock(&phydev->lock); in phy_led_hw_control_get()
3061 struct phy_device *phydev = phyled->phydev; in phy_led_hw_control_set()
3064 mutex_lock(&phydev->lock); in phy_led_hw_control_set()
3065 err = phydev->drv->led_hw_control_set(phydev, phyled->index, rules); in phy_led_hw_control_set()
3066 mutex_unlock(&phydev->lock); in phy_led_hw_control_set()
3075 struct phy_device *phydev = phyled->phydev; in phy_led_hw_is_supported()
3078 mutex_lock(&phydev->lock); in phy_led_hw_is_supported()
3079 err = phydev->drv->led_hw_is_supported(phydev, phyled->index, rules); in phy_led_hw_is_supported()
3080 mutex_unlock(&phydev->lock); in phy_led_hw_is_supported()
3089 list_for_each_entry(phyled, &phydev->leds, list) { in phy_leds_unregister()
3090 led_classdev_unregister(&phyled->led_cdev); in phy_leds_unregister()
3097 struct device *dev = &phydev->mdio.dev; in of_phy_led()
3106 return -ENOMEM; in of_phy_led()
3108 cdev = &phyled->led_cdev; in of_phy_led()
3109 phyled->phydev = phydev; in of_phy_led()
3115 return -EINVAL; in of_phy_led()
3117 phyled->index = index; in of_phy_led()
3118 if (phydev->drv->led_brightness_set) in of_phy_led()
3119 cdev->brightness_set_blocking = phy_led_set_brightness; in of_phy_led()
3120 if (phydev->drv->led_blink_set) in of_phy_led()
3121 cdev->blink_set = phy_led_blink_set; in of_phy_led()
3124 if (phydev->drv->led_hw_is_supported && in of_phy_led()
3125 phydev->drv->led_hw_control_set && in of_phy_led()
3126 phydev->drv->led_hw_control_get) { in of_phy_led()
3127 cdev->hw_control_is_supported = phy_led_hw_is_supported; in of_phy_led()
3128 cdev->hw_control_set = phy_led_hw_control_set; in of_phy_led()
3129 cdev->hw_control_get = phy_led_hw_control_get; in of_phy_led()
3130 cdev->hw_control_trigger = "netdev"; in of_phy_led()
3133 cdev->hw_control_get_device = phy_led_hw_control_get_device; in of_phy_led()
3135 cdev->max_brightness = 1; in of_phy_led()
3136 init_data.devicename = dev_name(&phydev->mdio.dev); in of_phy_led()
3144 list_add(&phyled->list, &phydev->leds); in of_phy_led()
3151 struct device_node *node = phydev->mdio.dev.of_node; in of_phy_leds()
3178 * fwnode_mdio_find_device - Given a fwnode, find the mdio_device
3201 * fwnode_phy_find_device - For provided phy_fwnode, find phy_device.
3216 if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY) in fwnode_phy_find_device()
3217 return to_phy_device(&mdiodev->dev); in fwnode_phy_find_device()
3219 put_device(&mdiodev->dev); in fwnode_phy_find_device()
3226 * device_phy_find_device - For the given device, get the phy_device
3238 * fwnode_get_phy_node - Get the phy_node using the named reference.
3242 * For ACPI, only "phy-handle" is supported. Legacy DT properties "phy"
3243 * and "phy-device" are not supported in ACPI. DT supports all the three
3250 /* Only phy-handle is used for ACPI */ in fwnode_get_phy_node()
3251 phy_node = fwnode_find_reference(fwnode, "phy-handle", 0); in fwnode_get_phy_node()
3256 phy_node = fwnode_find_reference(fwnode, "phy-device", 0); in fwnode_get_phy_node()
3262 * phy_probe - probe and init a PHY device
3270 struct device_driver *drv = phydev->mdio.dev.driver; in phy_probe()
3274 phydev->drv = phydrv; in phy_probe()
3280 phydev->irq = PHY_POLL; in phy_probe()
3282 if (phydrv->flags & PHY_IS_INTERNAL) in phy_probe()
3283 phydev->is_internal = true; in phy_probe()
3288 if (phydev->drv->probe) { in phy_probe()
3289 err = phydev->drv->probe(phydev); in phy_probe()
3300 if (phydrv->features) { in phy_probe()
3301 linkmode_copy(phydev->supported, phydrv->features); in phy_probe()
3304 else if (phydrv->get_features) in phy_probe()
3305 err = phydrv->get_features(phydev); in phy_probe()
3306 else if (phydev->is_c45) in phy_probe()
3315 phydev->supported)) in phy_probe()
3316 phydev->autoneg = 0; in phy_probe()
3319 phydev->supported)) in phy_probe()
3320 phydev->is_gigabit_capable = 1; in phy_probe()
3322 phydev->supported)) in phy_probe()
3323 phydev->is_gigabit_capable = 1; in phy_probe()
3331 err = genphy_c45_read_eee_adv(phydev, phydev->advertising_eee); in phy_probe()
3338 phydev->eee_enabled = !linkmode_empty(phydev->advertising_eee); in phy_probe()
3343 if (phydev->eee_enabled) in phy_probe()
3344 linkmode_and(phydev->advertising_eee, phydev->supported_eee, in phy_probe()
3345 phydev->advertising_eee); in phy_probe()
3363 if (!test_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported) && in phy_probe()
3364 !test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported)) { in phy_probe()
3366 phydev->supported); in phy_probe()
3368 phydev->supported); in phy_probe()
3372 phydev->state = PHY_READY; in phy_probe()
3381 /* Re-assert the reset signal on error */ in phy_probe()
3392 cancel_delayed_work_sync(&phydev->state_queue); in phy_remove()
3397 phydev->state = PHY_DOWN; in phy_remove()
3399 sfp_bus_del_upstream(phydev->sfp_bus); in phy_remove()
3400 phydev->sfp_bus = NULL; in phy_remove()
3402 if (phydev->drv && phydev->drv->remove) in phy_remove()
3403 phydev->drv->remove(phydev); in phy_remove()
3408 phydev->drv = NULL; in phy_remove()
3414 * phy_driver_register - register a phy_driver with the PHY layer
3425 if (WARN_ON(new_driver->features && new_driver->get_features)) { in phy_driver_register()
3427 new_driver->name); in phy_driver_register()
3428 return -EINVAL; in phy_driver_register()
3434 * make out-of-bounds accesses and lockup in phydev->lock. in phy_driver_register()
3436 if (WARN(new_driver->mdiodrv.driver.of_match_table, in phy_driver_register()
3438 new_driver->name)) in phy_driver_register()
3439 return -EINVAL; in phy_driver_register()
3441 new_driver->mdiodrv.flags |= MDIO_DEVICE_IS_PHY; in phy_driver_register()
3442 new_driver->mdiodrv.driver.name = new_driver->name; in phy_driver_register()
3443 new_driver->mdiodrv.driver.bus = &mdio_bus_type; in phy_driver_register()
3444 new_driver->mdiodrv.driver.probe = phy_probe; in phy_driver_register()
3445 new_driver->mdiodrv.driver.remove = phy_remove; in phy_driver_register()
3446 new_driver->mdiodrv.driver.owner = owner; in phy_driver_register()
3447 new_driver->mdiodrv.driver.probe_type = PROBE_FORCE_SYNCHRONOUS; in phy_driver_register()
3449 retval = driver_register(&new_driver->mdiodrv.driver); in phy_driver_register()
3452 new_driver->name, retval); in phy_driver_register()
3457 pr_debug("%s: Registered new driver\n", new_driver->name); in phy_driver_register()
3471 while (i-- > 0) in phy_drivers_register()
3482 driver_unregister(&drv->mdiodrv.driver); in phy_driver_unregister()