Lines Matching +full:bus +full:- +full:addr
1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
2 // Copyright(c) 2015-17 Intel Corporation.
9 #include "bus.h"
16 of_node_put(slave->dev.of_node); in sdw_slave_release()
17 mutex_destroy(&slave->sdw_dev_lock); in sdw_slave_release()
27 int sdw_slave_add(struct sdw_bus *bus, in sdw_slave_add() argument
36 return -ENOMEM; in sdw_slave_add()
39 memcpy(&slave->id, id, sizeof(*id)); in sdw_slave_add()
40 slave->dev.parent = bus->dev; in sdw_slave_add()
41 slave->dev.fwnode = fwnode; in sdw_slave_add()
43 if (id->unique_id == SDW_IGNORED_UNIQUE_ID) { in sdw_slave_add()
45 dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x", in sdw_slave_add()
46 bus->controller_id, bus->link_id, id->mfg_id, id->part_id, in sdw_slave_add()
47 id->class_id); in sdw_slave_add()
50 dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x:%01x", in sdw_slave_add()
51 bus->controller_id, bus->link_id, id->mfg_id, id->part_id, in sdw_slave_add()
52 id->class_id, id->unique_id); in sdw_slave_add()
55 slave->dev.bus = &sdw_bus_type; in sdw_slave_add()
56 slave->dev.of_node = of_node_get(to_of_node(fwnode)); in sdw_slave_add()
57 slave->dev.type = &sdw_slave_type; in sdw_slave_add()
58 slave->dev.groups = sdw_slave_status_attr_groups; in sdw_slave_add()
59 slave->bus = bus; in sdw_slave_add()
60 slave->status = SDW_SLAVE_UNATTACHED; in sdw_slave_add()
61 init_completion(&slave->enumeration_complete); in sdw_slave_add()
62 init_completion(&slave->initialization_complete); in sdw_slave_add()
63 slave->dev_num = 0; in sdw_slave_add()
64 slave->probed = false; in sdw_slave_add()
65 slave->first_interrupt_done = false; in sdw_slave_add()
66 mutex_init(&slave->sdw_dev_lock); in sdw_slave_add()
69 init_completion(&slave->port_ready[i]); in sdw_slave_add()
71 mutex_lock(&bus->bus_lock); in sdw_slave_add()
72 list_add_tail(&slave->node, &bus->slaves); in sdw_slave_add()
73 mutex_unlock(&bus->bus_lock); in sdw_slave_add()
77 * sub-devices, one per Function. This means the information in sdw_slave_add()
86 ret = device_register(&slave->dev); in sdw_slave_add()
88 dev_err(bus->dev, "Failed to add slave: ret %d\n", ret); in sdw_slave_add()
94 mutex_lock(&bus->bus_lock); in sdw_slave_add()
95 list_del(&slave->node); in sdw_slave_add()
96 mutex_unlock(&bus->bus_lock); in sdw_slave_add()
97 put_device(&slave->dev); in sdw_slave_add()
109 static bool find_slave(struct sdw_bus *bus, in find_slave() argument
114 u64 addr; in find_slave() local
117 ret = acpi_get_local_u64_address(adev->handle, &addr); in find_slave()
121 if (bus->ops->override_adr) in find_slave()
122 addr = bus->ops->override_adr(bus, addr); in find_slave()
124 if (!addr) in find_slave()
128 link_id = SDW_DISCO_LINK_ID(addr); in find_slave()
131 if (link_id != bus->link_id) in find_slave()
134 sdw_extract_slave_id(bus, addr, id); in find_slave()
140 struct sdw_bus *bus; member
149 struct sdw_bus *bus = cwd->bus; in sdw_acpi_check_duplicate() local
152 if (adev == cwd->adev) in sdw_acpi_check_duplicate()
155 if (!find_slave(bus, adev, &id)) in sdw_acpi_check_duplicate()
158 if (cwd->id.sdw_version != id.sdw_version || cwd->id.mfg_id != id.mfg_id || in sdw_acpi_check_duplicate()
159 cwd->id.part_id != id.part_id || cwd->id.class_id != id.class_id) in sdw_acpi_check_duplicate()
162 if (cwd->id.unique_id != id.unique_id) { in sdw_acpi_check_duplicate()
163 dev_dbg(bus->dev, in sdw_acpi_check_duplicate()
165 cwd->id.unique_id, id.unique_id, cwd->id.mfg_id, in sdw_acpi_check_duplicate()
166 cwd->id.part_id); in sdw_acpi_check_duplicate()
167 cwd->ignore_unique_id = false; in sdw_acpi_check_duplicate()
171 dev_err(bus->dev, in sdw_acpi_check_duplicate()
173 cwd->id.unique_id, id.unique_id, cwd->id.mfg_id, cwd->id.part_id); in sdw_acpi_check_duplicate()
174 return -ENODEV; in sdw_acpi_check_duplicate()
179 struct sdw_bus *bus = data; in sdw_acpi_find_one() local
181 .bus = bus, in sdw_acpi_find_one()
187 if (!find_slave(bus, adev, &cwd.id)) in sdw_acpi_find_one()
190 /* Brute-force O(N^2) search for duplicates. */ in sdw_acpi_find_one()
191 ret = acpi_dev_for_each_child(ACPI_COMPANION(bus->dev), in sdw_acpi_find_one()
200 sdw_slave_add(bus, &cwd.id, acpi_fwnode_handle(adev)); in sdw_acpi_find_one()
205 * sdw_acpi_find_slaves() - Find Slave devices in Master ACPI node
206 * @bus: SDW bus instance
210 int sdw_acpi_find_slaves(struct sdw_bus *bus) in sdw_acpi_find_slaves() argument
214 parent = ACPI_COMPANION(bus->dev); in sdw_acpi_find_slaves()
216 dev_err(bus->dev, "Can't find parent for acpi bind\n"); in sdw_acpi_find_slaves()
217 return -ENODEV; in sdw_acpi_find_slaves()
220 return acpi_dev_for_each_child(parent, sdw_acpi_find_one, bus); in sdw_acpi_find_slaves()
226 * sdw_of_find_slaves() - Find Slave devices in master device tree node
227 * @bus: SDW bus instance
231 int sdw_of_find_slaves(struct sdw_bus *bus) in sdw_of_find_slaves() argument
233 struct device *dev = bus->dev; in sdw_of_find_slaves()
236 for_each_child_of_node(bus->dev->of_node, node) { in sdw_of_find_slaves()
241 const __be32 *addr; in sdw_of_find_slaves() local
256 addr = of_get_property(node, "reg", &len); in sdw_of_find_slaves()
257 if (!addr || (len < 2 * sizeof(u32))) { in sdw_of_find_slaves()
262 link_id = be32_to_cpup(addr++); in sdw_of_find_slaves()
263 id.unique_id = be32_to_cpup(addr); in sdw_of_find_slaves()
267 if (link_id != bus->link_id) in sdw_of_find_slaves()
270 sdw_slave_add(bus, &id, of_fwnode_handle(node)); in sdw_of_find_slaves()