Lines Matching +full:function +full:- +full:mask
1 // SPDX-License-Identifier: GPL-2.0+
42 #include "mdio-boardinfo.h"
47 mdiodev->reset_gpio = gpiod_get_optional(&mdiodev->dev, in mdiobus_register_gpiod()
49 if (IS_ERR(mdiodev->reset_gpio)) in mdiobus_register_gpiod()
50 return PTR_ERR(mdiodev->reset_gpio); in mdiobus_register_gpiod()
52 if (mdiodev->reset_gpio) in mdiobus_register_gpiod()
53 gpiod_set_consumer_name(mdiodev->reset_gpio, "PHY reset"); in mdiobus_register_gpiod()
62 reset = reset_control_get_optional_exclusive(&mdiodev->dev, "phy"); in mdiobus_register_reset()
66 mdiodev->reset_ctrl = reset; in mdiobus_register_reset()
75 if (mdiodev->bus->mdio_map[mdiodev->addr]) in mdiobus_register_device()
76 return -EBUSY; in mdiobus_register_device()
78 if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY) { in mdiobus_register_device()
91 mdiodev->bus->mdio_map[mdiodev->addr] = mdiodev; in mdiobus_register_device()
99 if (mdiodev->bus->mdio_map[mdiodev->addr] != mdiodev) in mdiobus_unregister_device()
100 return -EINVAL; in mdiobus_unregister_device()
102 reset_control_put(mdiodev->reset_ctrl); in mdiobus_unregister_device()
104 mdiodev->bus->mdio_map[mdiodev->addr] = NULL; in mdiobus_unregister_device()
112 bool addr_valid = addr >= 0 && addr < ARRAY_SIZE(bus->mdio_map); in mdiobus_find_device()
117 return bus->mdio_map[addr]; in mdiobus_find_device()
128 if (!(mdiodev->flags & MDIO_DEVICE_FLAG_PHY)) in mdiobus_get_phy()
142 * mdiobus_alloc_size - allocate a mii_bus structure
144 * If non-zero, then bus->priv is points to that memory.
166 bus->state = MDIOBUS_ALLOCATED; in mdiobus_alloc_size()
168 bus->priv = (void *)bus + aligned_size; in mdiobus_alloc_size()
170 /* Initialise the interrupts to polling and 64-bit seqcounts */ in mdiobus_alloc_size()
172 bus->irq[i] = PHY_POLL; in mdiobus_alloc_size()
173 u64_stats_init(&bus->stats[i].syncp); in mdiobus_alloc_size()
181 * mdiobus_release - mii_bus device release callback
191 WARN(bus->state != MDIOBUS_RELEASED && in mdiobus_release()
193 bus->state != MDIOBUS_ALLOCATED, in mdiobus_release()
195 bus->id); in mdiobus_release()
211 start = u64_stats_fetch_begin(&s->syncp); in mdio_bus_get_stat()
213 } while (u64_stats_fetch_retry(&s->syncp, start)); in mdio_bus_get_stat()
224 val += mdio_bus_get_stat(&bus->stats[i], offset); in mdio_bus_get_global_stat()
239 sattr = eattr->var; in mdio_bus_stat_field_show()
241 if (sattr->addr < 0) in mdio_bus_stat_field_show()
242 val = mdio_bus_get_global_stat(bus, sattr->field_offset); in mdio_bus_stat_field_show()
244 val = mdio_bus_get_stat(&bus->stats[sattr->addr], in mdio_bus_stat_field_show()
245 sattr->field_offset); in mdio_bus_stat_field_show()
255 struct mii_bus *bus = mdiodev->bus; in mdio_bus_device_stat_field_show()
258 int addr = mdiodev->addr; in mdio_bus_device_stat_field_show()
262 sattr = eattr->var; in mdio_bus_device_stat_field_show()
264 val = mdio_bus_get_stat(&bus->stats[addr], sattr->field_offset); in mdio_bus_device_stat_field_show()
275 -1, offsetof(struct mdio_bus_stats, field) \
283 -1, offsetof(struct mdio_bus_stats, field) \
411 * mdio_find_bus - Given the name of a mdiobus, find the mii_bus.
429 * of_mdio_find_bus - Given an mii_bus node, find the mii_bus.
456 * auto-probed phy devices to be supplied with information passed in
462 struct device *dev = &mdiodev->dev; in of_mdiobus_link_mdiodev()
465 if (dev->of_node || !bus->dev.of_node) in of_mdiobus_link_mdiodev()
468 for_each_available_child_of_node(bus->dev.of_node, child) { in of_mdiobus_link_mdiodev()
475 if (addr == mdiodev->addr) { in of_mdiobus_link_mdiodev()
492 * mdiobus_create_device - create a full MDIO device given
505 mdiodev = mdio_device_create(bus, bi->mdio_addr); in mdiobus_create_device()
507 return -ENODEV; in mdiobus_create_device()
509 strncpy(mdiodev->modalias, bi->modalias, in mdiobus_create_device()
510 sizeof(mdiodev->modalias)); in mdiobus_create_device()
511 mdiodev->bus_match = mdio_device_bus_match; in mdiobus_create_device()
512 mdiodev->dev.platform_data = (void *)bi->platform_data; in mdiobus_create_device()
523 struct phy_device *phydev = ERR_PTR(-ENODEV); in mdiobus_scan()
530 /* For DT, see if the auto-probed phy has a corresponding child in mdiobus_scan()
533 of_mdiobus_link_mdiodev(bus, &phydev->mdio); in mdiobus_scan()
538 return ERR_PTR(-ENODEV); in mdiobus_scan()
545 * mdiobus_scan_c22 - scan one address on a bus for C22 MDIO devices.
549 * This function scans one address on the MDIO bus, looking for
552 * PHY devices typically do. Hence this function assumes anything
563 * mdiobus_scan_c45 - scan one address on a bus for C45 MDIO devices.
567 * This function scans one address on the MDIO bus, looking for
570 * PHY devices typically do. Hence this function assumes anything
584 if ((bus->phy_mask & BIT(i)) == 0) { in mdiobus_scan_bus_c22()
588 if (IS_ERR(phydev) && (PTR_ERR(phydev) != -ENODEV)) in mdiobus_scan_bus_c22()
600 if ((bus->phy_mask & BIT(i)) == 0) { in mdiobus_scan_bus_c45()
604 if (bus->mdio_map[i]) in mdiobus_scan_bus_c45()
608 if (IS_ERR(phydev) && (PTR_ERR(phydev) != -ENODEV)) in mdiobus_scan_bus_c45()
633 oui = phydev->phy_id >> 10; in mdiobus_prevent_c45_scan()
642 * __mdiobus_register - bring up all the PHYs on a given bus and attach them to bus
650 * PHYs will not be brought up by this function. They are expected
662 if (!bus || !bus->name) in __mdiobus_register()
663 return -EINVAL; in __mdiobus_register()
666 if (!!bus->read != !!bus->write || !!bus->read_c45 != !!bus->write_c45) in __mdiobus_register()
667 return -EINVAL; in __mdiobus_register()
670 if (!bus->read && !bus->read_c45) in __mdiobus_register()
671 return -EINVAL; in __mdiobus_register()
673 if (bus->parent && bus->parent->of_node) in __mdiobus_register()
674 bus->parent->of_node->fwnode.flags |= in __mdiobus_register()
677 WARN(bus->state != MDIOBUS_ALLOCATED && in __mdiobus_register()
678 bus->state != MDIOBUS_UNREGISTERED, in __mdiobus_register()
679 "%s: not in ALLOCATED or UNREGISTERED state\n", bus->id); in __mdiobus_register()
681 bus->owner = owner; in __mdiobus_register()
682 bus->dev.parent = bus->parent; in __mdiobus_register()
683 bus->dev.class = &mdio_bus_class; in __mdiobus_register()
684 bus->dev.groups = NULL; in __mdiobus_register()
685 dev_set_name(&bus->dev, "%s", bus->id); in __mdiobus_register()
690 * State will be updated later in this function in case of success in __mdiobus_register()
692 bus->state = MDIOBUS_UNREGISTERED; in __mdiobus_register()
694 err = device_register(&bus->dev); in __mdiobus_register()
696 pr_err("mii_bus %s failed to register\n", bus->id); in __mdiobus_register()
697 return -EINVAL; in __mdiobus_register()
700 mutex_init(&bus->mdio_lock); in __mdiobus_register()
701 mutex_init(&bus->shared_lock); in __mdiobus_register()
704 gpiod = devm_gpiod_get_optional(&bus->dev, "reset", GPIOD_OUT_HIGH); in __mdiobus_register()
706 err = dev_err_probe(&bus->dev, PTR_ERR(gpiod), in __mdiobus_register()
708 bus->id); in __mdiobus_register()
709 device_del(&bus->dev); in __mdiobus_register()
712 bus->reset_gpiod = gpiod; in __mdiobus_register()
713 fsleep(bus->reset_delay_us); in __mdiobus_register()
715 if (bus->reset_post_delay_us > 0) in __mdiobus_register()
716 fsleep(bus->reset_post_delay_us); in __mdiobus_register()
719 if (bus->reset) { in __mdiobus_register()
720 err = bus->reset(bus); in __mdiobus_register()
725 if (bus->read) { in __mdiobus_register()
733 if (!prevent_c45_scan && bus->read_c45) { in __mdiobus_register()
741 bus->state = MDIOBUS_REGISTERED; in __mdiobus_register()
742 dev_dbg(&bus->dev, "probed\n"); in __mdiobus_register()
747 mdiodev = bus->mdio_map[i]; in __mdiobus_register()
751 mdiodev->device_remove(mdiodev); in __mdiobus_register()
752 mdiodev->device_free(mdiodev); in __mdiobus_register()
756 if (bus->reset_gpiod) in __mdiobus_register()
757 gpiod_set_value_cansleep(bus->reset_gpiod, 1); in __mdiobus_register()
759 device_del(&bus->dev); in __mdiobus_register()
769 if (WARN_ON_ONCE(bus->state != MDIOBUS_REGISTERED)) in mdiobus_unregister()
771 bus->state = MDIOBUS_UNREGISTERED; in mdiobus_unregister()
774 mdiodev = bus->mdio_map[i]; in mdiobus_unregister()
778 if (mdiodev->reset_gpio) in mdiobus_unregister()
779 gpiod_put(mdiodev->reset_gpio); in mdiobus_unregister()
781 mdiodev->device_remove(mdiodev); in mdiobus_unregister()
782 mdiodev->device_free(mdiodev); in mdiobus_unregister()
786 if (bus->reset_gpiod) in mdiobus_unregister()
787 gpiod_set_value_cansleep(bus->reset_gpiod, 1); in mdiobus_unregister()
789 device_del(&bus->dev); in mdiobus_unregister()
794 * mdiobus_free - free a struct mii_bus
797 * This function releases the reference to the underlying device
804 if (bus->state == MDIOBUS_ALLOCATED) { in mdiobus_free()
809 WARN(bus->state != MDIOBUS_UNREGISTERED, in mdiobus_free()
810 "%s: not in UNREGISTERED state\n", bus->id); in mdiobus_free()
811 bus->state = MDIOBUS_RELEASED; in mdiobus_free()
813 put_device(&bus->dev); in mdiobus_free()
820 u64_stats_update_begin(&stats->syncp); in mdiobus_stats_acct()
822 u64_stats_inc(&stats->transfers); in mdiobus_stats_acct()
824 u64_stats_inc(&stats->errors); in mdiobus_stats_acct()
829 u64_stats_inc(&stats->reads); in mdiobus_stats_acct()
831 u64_stats_inc(&stats->writes); in mdiobus_stats_acct()
833 u64_stats_update_end(&stats->syncp); in mdiobus_stats_acct()
838 * __mdiobus_read - Unlocked version of the mdiobus_read function
851 lockdep_assert_held_once(&bus->mdio_lock); in __mdiobus_read()
853 if (bus->read) in __mdiobus_read()
854 retval = bus->read(bus, addr, regnum); in __mdiobus_read()
856 retval = -EOPNOTSUPP; in __mdiobus_read()
859 mdiobus_stats_acct(&bus->stats[addr], true, retval); in __mdiobus_read()
866 * __mdiobus_write - Unlocked version of the mdiobus_write function
880 lockdep_assert_held_once(&bus->mdio_lock); in __mdiobus_write()
882 if (bus->write) in __mdiobus_write()
883 err = bus->write(bus, addr, regnum, val); in __mdiobus_write()
885 err = -EOPNOTSUPP; in __mdiobus_write()
888 mdiobus_stats_acct(&bus->stats[addr], false, err); in __mdiobus_write()
895 * __mdiobus_modify_changed - Unlocked version of the mdiobus_modify function
899 * @mask: bit mask of bits to clear
900 * @set: bit mask of bits to set
908 u16 mask, u16 set) in __mdiobus_modify_changed() argument
916 new = (ret & ~mask) | set; in __mdiobus_modify_changed()
927 * __mdiobus_c45_read - Unlocked version of the mdiobus_c45_read function
941 lockdep_assert_held_once(&bus->mdio_lock); in __mdiobus_c45_read()
943 if (bus->read_c45) in __mdiobus_c45_read()
944 retval = bus->read_c45(bus, addr, devad, regnum); in __mdiobus_c45_read()
946 retval = -EOPNOTSUPP; in __mdiobus_c45_read()
949 mdiobus_stats_acct(&bus->stats[addr], true, retval); in __mdiobus_c45_read()
956 * __mdiobus_c45_write - Unlocked version of the mdiobus_write function
972 lockdep_assert_held_once(&bus->mdio_lock); in __mdiobus_c45_write()
974 if (bus->write_c45) in __mdiobus_c45_write()
975 err = bus->write_c45(bus, addr, devad, regnum, val); in __mdiobus_c45_write()
977 err = -EOPNOTSUPP; in __mdiobus_c45_write()
980 mdiobus_stats_acct(&bus->stats[addr], false, err); in __mdiobus_c45_write()
987 * __mdiobus_c45_modify_changed - Unlocked version of the mdiobus_modify function
992 * @mask: bit mask of bits to clear
993 * @set: bit mask of bits to set
1001 int devad, u32 regnum, u16 mask, in __mdiobus_c45_modify_changed() argument
1010 new = (ret & ~mask) | set; in __mdiobus_c45_modify_changed()
1020 * mdiobus_read_nested - Nested version of the mdiobus_read function
1036 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); in mdiobus_read_nested()
1038 mutex_unlock(&bus->mdio_lock); in mdiobus_read_nested()
1045 * mdiobus_read - Convenience function for reading a given MII mgmt register
1058 mutex_lock(&bus->mdio_lock); in mdiobus_read()
1060 mutex_unlock(&bus->mdio_lock); in mdiobus_read()
1067 * mdiobus_c45_read - Convenience function for reading a given MII mgmt register
1081 mutex_lock(&bus->mdio_lock); in mdiobus_c45_read()
1083 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_read()
1090 * mdiobus_c45_read_nested - Nested version of the mdiobus_c45_read function
1108 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); in mdiobus_c45_read_nested()
1110 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_read_nested()
1117 * mdiobus_write_nested - Nested version of the mdiobus_write function
1134 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); in mdiobus_write_nested()
1136 mutex_unlock(&bus->mdio_lock); in mdiobus_write_nested()
1143 * mdiobus_write - Convenience function for writing a given MII mgmt register
1157 mutex_lock(&bus->mdio_lock); in mdiobus_write()
1159 mutex_unlock(&bus->mdio_lock); in mdiobus_write()
1166 * mdiobus_c45_write - Convenience function for writing a given MII mgmt register
1182 mutex_lock(&bus->mdio_lock); in mdiobus_c45_write()
1184 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_write()
1191 * mdiobus_c45_write_nested - Nested version of the mdiobus_c45_write function
1210 mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); in mdiobus_c45_write_nested()
1212 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_write_nested()
1219 * __mdiobus_modify - Convenience function for modifying a given mdio device
1224 * @mask: bit mask of bits to clear
1225 * @set: bit mask of bits to set
1227 int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, in __mdiobus_modify() argument
1232 err = __mdiobus_modify_changed(bus, addr, regnum, mask, set); in __mdiobus_modify()
1239 * mdiobus_modify - Convenience function for modifying a given mdio device
1244 * @mask: bit mask of bits to clear
1245 * @set: bit mask of bits to set
1247 int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, u16 set) in mdiobus_modify() argument
1251 mutex_lock(&bus->mdio_lock); in mdiobus_modify()
1252 err = __mdiobus_modify(bus, addr, regnum, mask, set); in mdiobus_modify()
1253 mutex_unlock(&bus->mdio_lock); in mdiobus_modify()
1260 * mdiobus_c45_modify - Convenience function for modifying a given mdio device
1266 * @mask: bit mask of bits to clear
1267 * @set: bit mask of bits to set
1270 u16 mask, u16 set) in mdiobus_c45_modify() argument
1274 mutex_lock(&bus->mdio_lock); in mdiobus_c45_modify()
1276 mask, set); in mdiobus_c45_modify()
1277 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_modify()
1284 * mdiobus_modify_changed - Convenience function for modifying a given mdio
1289 * @mask: bit mask of bits to clear
1290 * @set: bit mask of bits to set
1293 u16 mask, u16 set) in mdiobus_modify_changed() argument
1297 mutex_lock(&bus->mdio_lock); in mdiobus_modify_changed()
1298 err = __mdiobus_modify_changed(bus, addr, regnum, mask, set); in mdiobus_modify_changed()
1299 mutex_unlock(&bus->mdio_lock); in mdiobus_modify_changed()
1306 * mdiobus_c45_modify_changed - Convenience function for modifying a given mdio
1312 * @mask: bit mask of bits to clear
1313 * @set: bit mask of bits to set
1316 u32 regnum, u16 mask, u16 set) in mdiobus_c45_modify_changed() argument
1320 mutex_lock(&bus->mdio_lock); in mdiobus_c45_modify_changed()
1321 err = __mdiobus_c45_modify_changed(bus, addr, devad, regnum, mask, set); in mdiobus_c45_modify_changed()
1322 mutex_unlock(&bus->mdio_lock); in mdiobus_c45_modify_changed()
1329 * mdio_bus_match - determine if given MDIO driver supports the given
1336 * require calling the devices own match function, since different classes
1344 /* Both the driver and device must type-match */ in mdio_bus_match()
1345 if (!(mdiodrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY) != in mdio_bus_match()
1346 !(mdio->flags & MDIO_DEVICE_FLAG_PHY)) in mdio_bus_match()
1352 if (mdio->bus_match) in mdio_bus_match()
1353 return mdio->bus_match(dev, drv); in mdio_bus_match()
1362 /* Some devices have extra OF data and an OF-style MODALIAS */ in mdio_uevent()
1364 if (rc != -ENODEV) in mdio_uevent()