Lines Matching +full:required +full:- +full:opps
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
24 /* OPP tables with uninitialized required OPPs, protected by opp_table_lock */
34 /* "operating-points-v2" can be an array for power domain providers */ in _opp_of_get_opp_desc_node()
35 return of_parse_phandle(np, "operating-points-v2", index); in _opp_of_get_opp_desc_node()
41 return _opp_of_get_opp_desc_node(dev->of_node, 0); in dev_pm_opp_of_get_opp_desc_node()
50 np = _opp_of_get_opp_desc_node(dev->of_node, index); in _managed_opp()
55 if (opp_table->np == np) { in _managed_opp()
58 * so will have same node-pointer, np. in _managed_opp()
60 * But the OPPs will be considered as shared only if the in _managed_opp()
61 * OPP table contains a "opp-shared" property. in _managed_opp()
63 if (opp_table->shared_opp == OPP_TABLE_ACCESS_SHARED) in _managed_opp()
79 guard(mutex)(&opp_table->lock); in _find_opp_of_np()
81 list_for_each_entry(opp, &opp_table->opp_list, node) { in _find_opp_of_np()
82 if (opp->np == opp_np) in _find_opp_of_np()
92 return of_parse_phandle(np, "required-opps", index); in of_parse_required_opp()
103 return ERR_PTR(-ENODEV); in _find_table_of_opp_np()
108 if (opp_table_np == opp_table->np) in _find_table_of_opp_np()
112 return ERR_PTR(-ENODEV); in _find_table_of_opp_np()
118 struct opp_table **required_opp_tables = opp_table->required_opp_tables; in _opp_table_free_required_tables()
124 for (i = 0; i < opp_table->required_opp_count; i++) { in _opp_table_free_required_tables()
133 opp_table->required_opp_count = 0; in _opp_table_free_required_tables()
134 opp_table->required_opp_tables = NULL; in _opp_table_free_required_tables()
137 list_del(&opp_table->lazy); in _opp_table_free_required_tables()
141 * Populate all devices and opp tables which are part of "required-opps" list.
160 count = of_count_phandle_with_args(np, "required-opps", NULL); in _opp_table_alloc_required_tables()
164 size = sizeof(*required_opp_tables) + sizeof(*opp_table->required_devs); in _opp_table_alloc_required_tables()
169 opp_table->required_opp_tables = required_opp_tables; in _opp_table_alloc_required_tables()
170 opp_table->required_devs = (void *)(required_opp_tables + count); in _opp_table_alloc_required_tables()
171 opp_table->required_opp_count = count; in _opp_table_alloc_required_tables()
195 list_add(&opp_table->lazy, &lazy_opp_tables); in _opp_table_alloc_required_tables()
206 * Only required for backward compatibility with v1 bindings, but isn't in _of_init_opp_table()
209 np = of_node_get(dev->of_node); in _of_init_opp_table()
213 if (!of_property_read_u32(np, "clock-latency", &val)) in _of_init_opp_table()
214 opp_table->clock_latency_ns_max = val; in _of_init_opp_table()
215 of_property_read_u32(np, "voltage-tolerance", in _of_init_opp_table()
216 &opp_table->voltage_tolerance_v1); in _of_init_opp_table()
218 if (of_property_present(np, "#power-domain-cells")) in _of_init_opp_table()
219 opp_table->is_genpd = true; in _of_init_opp_table()
226 if (of_property_read_bool(opp_np, "opp-shared")) in _of_init_opp_table()
227 opp_table->shared_opp = OPP_TABLE_ACCESS_SHARED; in _of_init_opp_table()
229 opp_table->shared_opp = OPP_TABLE_ACCESS_EXCLUSIVE; in _of_init_opp_table()
231 opp_table->np = opp_np; in _of_init_opp_table()
239 of_node_put(opp_table->np); in _of_clear_opp_table()
249 struct dev_pm_opp **required_opps = opp->required_opps; in _of_opp_free_required_opps()
255 for (i = 0; i < opp_table->required_opp_count; i++) { in _of_opp_free_required_opps()
263 opp->required_opps = NULL; in _of_opp_free_required_opps()
270 of_node_put(opp->np); in _of_clear_opp()
278 np = of_parse_required_opp(opp->np, index); in _link_required_opps()
280 return -ENODEV; in _link_required_opps()
282 opp->required_opps[index] = _find_opp_of_np(required_table, np); in _link_required_opps()
283 if (!opp->required_opps[index]) { in _link_required_opps()
284 pr_err("%s: Unable to find required OPP node: %pOF (%d)\n", in _link_required_opps()
285 __func__, opp->np, index); in _link_required_opps()
286 return -ENODEV; in _link_required_opps()
292 /* Populate all required OPPs which are part of "required-opps" list */
297 int i, ret, count = opp_table->required_opp_count; in _of_opp_alloc_required_opps()
302 opp->required_opps = kcalloc(count, sizeof(*opp->required_opps), GFP_KERNEL); in _of_opp_alloc_required_opps()
303 if (!opp->required_opps) in _of_opp_alloc_required_opps()
304 return -ENOMEM; in _of_opp_alloc_required_opps()
307 required_table = opp_table->required_opp_tables[i]; in _of_opp_alloc_required_opps()
309 /* Required table not added yet, we will link later */ in _of_opp_alloc_required_opps()
326 /* Link required OPPs for an individual OPP */
333 list_for_each_entry(opp, &opp_table->opp_list, node) { in lazy_link_required_opps()
342 /* Link required OPPs for all OPPs of the newly added OPP table */
356 opp_np = of_get_next_available_child(opp_table->np, NULL); in lazy_link_required_opp_table()
358 for (i = 0; i < opp_table->required_opp_count; i++) { in lazy_link_required_opp_table()
362 required_opp_tables = opp_table->required_opp_tables; in lazy_link_required_opp_table()
364 /* Required opp-table is already parsed */ in lazy_link_required_opp_table()
373 * Newly added table isn't the required opp-table for in lazy_link_required_opp_table()
376 if (required_table_np != new_table->np) { in lazy_link_required_opp_table()
383 /* Link OPPs now */ in lazy_link_required_opp_table()
386 /* The OPPs will be marked unusable */ in lazy_link_required_opp_table()
392 /* All required opp-tables found, remove from lazy list */ in lazy_link_required_opp_table()
394 list_del_init(&opp_table->lazy); in lazy_link_required_opp_table()
396 list_for_each_entry(opp, &opp_table->opp_list, node) in lazy_link_required_opp_table()
397 _required_opps_available(opp, opp_table->required_opp_count); in lazy_link_required_opp_table()
411 np = of_node_get(dev->of_node); in _bandwidth_supported()
413 return -ENODEV; in _bandwidth_supported()
417 opp_np = of_node_get(opp_table->np); in _bandwidth_supported()
420 /* Lets not fail in case we are parsing opp-v1 bindings */ in _bandwidth_supported()
428 return -EINVAL; in _bandwidth_supported()
431 prop = of_find_property(np, "opp-peak-kBps", NULL); in _bandwidth_supported()
432 if (!prop || !prop->length) in _bandwidth_supported()
441 struct device_node *np __free(device_node) = of_node_get(dev->of_node); in dev_pm_opp_of_find_icc_paths()
446 if (ret == -EINVAL) in dev_pm_opp_of_find_icc_paths()
447 return 0; /* Empty OPP table is a valid corner-case, let's not fail */ in dev_pm_opp_of_find_icc_paths()
457 "#interconnect-cells"); in dev_pm_opp_of_find_icc_paths()
461 /* two phandles when #interconnect-cells = <1> */ in dev_pm_opp_of_find_icc_paths()
464 return -EINVAL; in dev_pm_opp_of_find_icc_paths()
470 return -ENOMEM; in dev_pm_opp_of_find_icc_paths()
481 opp_table->paths = paths; in dev_pm_opp_of_find_icc_paths()
482 opp_table->path_count = num_paths; in dev_pm_opp_of_find_icc_paths()
487 while (i--) in dev_pm_opp_of_find_icc_paths()
499 unsigned int levels = opp_table->supported_hw_count; in _opp_is_supported()
503 if (!opp_table->supported_hw) { in _opp_is_supported()
506 * platform but there is an opp-supported-hw value set for in _opp_is_supported()
510 if (of_property_present(np, "opp-supported-hw")) in _opp_is_supported()
516 count = of_property_count_u32_elems(np, "opp-supported-hw"); in _opp_is_supported()
518 dev_err(dev, "%s: Invalid opp-supported-hw property (%d)\n", in _opp_is_supported()
530 ret = of_property_read_u32_index(np, "opp-supported-hw", in _opp_is_supported()
533 dev_warn(dev, "%s: failed to read opp-supported-hw property at index %d: %d\n", in _opp_is_supported()
539 if (!(val & opp_table->supported_hw[j])) { in _opp_is_supported()
561 /* Search for "opp-<prop_type>-<name>" */ in _parse_named_prop()
562 if (opp_table->prop_name) { in _parse_named_prop()
563 snprintf(name, sizeof(name), "opp-%s-%s", prop_type, in _parse_named_prop()
564 opp_table->prop_name); in _parse_named_prop()
565 prop = of_find_property(opp->np, name, NULL); in _parse_named_prop()
569 /* Search for "opp-<prop_type>" */ in _parse_named_prop()
570 snprintf(name, sizeof(name), "opp-%s", prop_type); in _parse_named_prop()
571 prop = of_find_property(opp->np, name, NULL); in _parse_named_prop()
576 count = of_property_count_u32_elems(opp->np, name); in _parse_named_prop()
588 if (unlikely(opp_table->regulator_count == -1)) in _parse_named_prop()
589 opp_table->regulator_count = 1; in _parse_named_prop()
591 if (count != opp_table->regulator_count && in _parse_named_prop()
592 (!triplet || count != opp_table->regulator_count * 3)) { in _parse_named_prop()
594 __func__, prop_type, count, opp_table->regulator_count); in _parse_named_prop()
595 return ERR_PTR(-EINVAL); in _parse_named_prop()
600 return ERR_PTR(-EINVAL); in _parse_named_prop()
602 ret = of_property_read_u32_array(opp->np, name, out, count); in _parse_named_prop()
606 return ERR_PTR(-EINVAL); in _parse_named_prop()
610 *triplet = count != opp_table->regulator_count; in _parse_named_prop()
632 if (list_empty(&opp_table->opp_list) && in opp_parse_microvolt()
633 opp_table->regulator_count > 0) { in opp_parse_microvolt()
634 dev_err(dev, "%s: opp-microvolt missing although OPP managing regulators\n", in opp_parse_microvolt()
636 return ERR_PTR(-EINVAL); in opp_parse_microvolt()
670 if (unlikely(opp_table->regulator_count == -1)) { in opp_parse_supplies()
671 opp_table->regulator_count = 0; in opp_parse_supplies()
675 for (i = 0, j = 0; i < opp_table->regulator_count; i++) { in opp_parse_supplies()
677 opp->supplies[i].u_volt = microvolt[j++]; in opp_parse_supplies()
680 opp->supplies[i].u_volt_min = microvolt[j++]; in opp_parse_supplies()
681 opp->supplies[i].u_volt_max = microvolt[j++]; in opp_parse_supplies()
683 opp->supplies[i].u_volt_min = opp->supplies[i].u_volt; in opp_parse_supplies()
684 opp->supplies[i].u_volt_max = opp->supplies[i].u_volt; in opp_parse_supplies()
689 opp->supplies[i].u_amp = microamp[i]; in opp_parse_supplies()
692 opp->supplies[i].u_watt = microwatt[i]; in opp_parse_supplies()
705 * dev_pm_opp_of_remove_table() - Free OPP table entries created from static DT
709 * Free OPPs created using static entries present in DT.
724 prop = of_find_property(np, "opp-hz", NULL); in _read_rate()
726 return -ENODEV; in _read_rate()
728 count = prop->length / sizeof(u64); in _read_rate()
729 if (opp_table->clk_count != count) { in _read_rate()
730 pr_err("%s: Count mismatch between opp-hz and clk_count (%d %d)\n", in _read_rate()
731 __func__, count, opp_table->clk_count); in _read_rate()
732 return -EINVAL; in _read_rate()
737 return -ENOMEM; in _read_rate()
739 ret = of_property_read_u64_array(np, "opp-hz", rates, count); in _read_rate()
741 pr_err("%s: Error parsing opp-hz: %d\n", __func__, ret); in _read_rate()
749 new_opp->rates[i] = (unsigned long)rates[i]; in _read_rate()
752 WARN_ON(new_opp->rates[i] != rates[i]); in _read_rate()
764 const char *name = peak ? "opp-peak-kBps" : "opp-avg-kBps"; in _read_bw()
771 return -ENODEV; in _read_bw()
773 count = prop->length / sizeof(u32); in _read_bw()
774 if (opp_table->path_count != count) { in _read_bw()
776 __func__, name, count, opp_table->path_count); in _read_bw()
777 return -EINVAL; in _read_bw()
782 return -ENOMEM; in _read_bw()
792 new_opp->bandwidth[i].peak = kBps_to_icc(bw[i]); in _read_bw()
794 new_opp->bandwidth[i].avg = kBps_to_icc(bw[i]); in _read_bw()
811 else if (ret != -ENODEV) in _read_opp_key()
816 * opp-peak-kBps = <path1_value path2_value>; in _read_opp_key()
817 * opp-avg-kBps = <path1_value path2_value>; in _read_opp_key()
826 if (ret && ret != -ENODEV) in _read_opp_key()
829 if (!of_property_read_u32(np, "opp-level", &new_opp->level)) in _read_opp_key()
839 * _opp_add_static_v2() - Allocate static OPPs (As per 'v2' DT bindings)
852 * Duplicate OPPs (both freq and volt are same) and opp->available
854 * ERR_PTR(-EEXIST):
856 * Duplicate OPPs (both freq and volt are same) and !opp->available
857 * ERR_PTR(-ENOMEM):
859 * ERR_PTR(-EINVAL):
871 return ERR_PTR(-ENOMEM); in _opp_add_static_v2()
886 new_opp->turbo = of_property_read_bool(np, "turbo-mode"); in _opp_add_static_v2()
888 new_opp->np = of_node_get(np); in _opp_add_static_v2()
889 new_opp->dynamic = false; in _opp_add_static_v2()
890 new_opp->available = true; in _opp_add_static_v2()
896 if (!of_property_read_u32(np, "clock-latency-ns", &val)) in _opp_add_static_v2()
897 new_opp->clock_latency_ns = val; in _opp_add_static_v2()
905 /* Don't return error for duplicate OPPs */ in _opp_add_static_v2()
906 if (ret == -EBUSY) in _opp_add_static_v2()
912 if (of_property_read_bool(np, "opp-suspend")) { in _opp_add_static_v2()
913 if (opp_table->suspend_opp) { in _opp_add_static_v2()
915 if (_opp_compare_key(opp_table, new_opp, opp_table->suspend_opp) == 1) { in _opp_add_static_v2()
916 opp_table->suspend_opp->suspend = false; in _opp_add_static_v2()
917 new_opp->suspend = true; in _opp_add_static_v2()
918 opp_table->suspend_opp = new_opp; in _opp_add_static_v2()
921 new_opp->suspend = true; in _opp_add_static_v2()
922 opp_table->suspend_opp = new_opp; in _opp_add_static_v2()
926 if (new_opp->clock_latency_ns > opp_table->clock_latency_ns_max) in _opp_add_static_v2()
927 opp_table->clock_latency_ns_max = new_opp->clock_latency_ns; in _opp_add_static_v2()
930 __func__, new_opp->turbo, new_opp->rates[0], in _opp_add_static_v2()
931 new_opp->supplies[0].u_volt, new_opp->supplies[0].u_volt_min, in _opp_add_static_v2()
932 new_opp->supplies[0].u_volt_max, new_opp->clock_latency_ns, in _opp_add_static_v2()
933 new_opp->level); in _opp_add_static_v2()
939 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADD, new_opp); in _opp_add_static_v2()
960 scoped_guard(mutex, &opp_table->lock) { in _of_add_opp_table_v2()
961 if (opp_table->parsed_static_opps) { in _of_add_opp_table_v2()
962 opp_table->parsed_static_opps++; in _of_add_opp_table_v2()
966 opp_table->parsed_static_opps = 1; in _of_add_opp_table_v2()
969 /* We have opp-table node now, iterate over it and add OPPs */ in _of_add_opp_table_v2()
970 for_each_available_child_of_node(opp_table->np, np) { in _of_add_opp_table_v2()
983 /* There should be one or more OPPs defined */ in _of_add_opp_table_v2()
985 dev_err(dev, "%s: no supported OPPs", __func__); in _of_add_opp_table_v2()
986 ret = -ENOENT; in _of_add_opp_table_v2()
1000 /* Initializes OPP tables based on old-deprecated bindings */
1007 scoped_guard(mutex, &opp_table->lock) { in _of_add_opp_table_v1()
1008 if (opp_table->parsed_static_opps) { in _of_add_opp_table_v1()
1009 opp_table->parsed_static_opps++; in _of_add_opp_table_v1()
1013 opp_table->parsed_static_opps = 1; in _of_add_opp_table_v1()
1016 prop = of_find_property(dev->of_node, "operating-points", NULL); in _of_add_opp_table_v1()
1018 ret = -ENODEV; in _of_add_opp_table_v1()
1021 if (!prop->value) { in _of_add_opp_table_v1()
1022 ret = -ENODATA; in _of_add_opp_table_v1()
1028 * voltage like <freq-kHz vol-uV>. in _of_add_opp_table_v1()
1030 nr = prop->length / sizeof(u32); in _of_add_opp_table_v1()
1033 ret = -EINVAL; in _of_add_opp_table_v1()
1037 val = prop->value; in _of_add_opp_table_v1()
1052 nr -= 2; in _of_add_opp_table_v1()
1073 count = of_count_phandle_with_args(dev->of_node, in _of_add_table_indexed()
1074 "operating-points-v2", NULL); in _of_add_table_indexed()
1084 * OPPs have two version of bindings now. Also try the old (v1) in _of_add_table_indexed()
1087 if (opp_table->np) in _of_add_table_indexed()
1115 * devm_pm_opp_of_add_table() - Initialize opp table from device tree
1124 * Duplicate OPPs (both freq and volt are same) and opp->available
1125 * -EEXIST Freq are same and volt are different OR
1126 * Duplicate OPPs (both freq and volt are same) and !opp->available
1127 * -ENOMEM Memory allocation failure
1128 * -ENODEV when 'operating-points' property is not found or is invalid data
1130 * -ENODATA when empty 'operating-points' property is found
1131 * -EINVAL when invalid entries are found in opp-v2 table
1140 * dev_pm_opp_of_add_table() - Initialize opp table from device tree
1147 * Duplicate OPPs (both freq and volt are same) and opp->available
1148 * -EEXIST Freq are same and volt are different OR
1149 * Duplicate OPPs (both freq and volt are same) and !opp->available
1150 * -ENOMEM Memory allocation failure
1151 * -ENODEV when 'operating-points' property is not found or is invalid data
1153 * -ENODATA when empty 'operating-points' property is found
1154 * -EINVAL when invalid entries are found in opp-v2 table
1163 * dev_pm_opp_of_add_table_indexed() - Initialize indexed opp table from device tree
1168 * using the "operating-points-v2" property.
1179 * devm_pm_opp_of_add_table_indexed() - Initialize indexed opp table from device tree
1183 * This is a resource-managed variant of dev_pm_opp_of_add_table_indexed().
1194 * dev_pm_opp_of_cpumask_remove_table() - Removes OPP table for @cpumask
1202 _dev_pm_opp_cpumask_remove_table(cpumask, -1); in dev_pm_opp_of_cpumask_remove_table()
1207 * dev_pm_opp_of_cpumask_add_table() - Adds OPP table for @cpumask
1218 return -ENODEV; in dev_pm_opp_of_cpumask_add_table()
1225 ret = -ENODEV; in dev_pm_opp_of_cpumask_add_table()
1245 /* Free all other OPPs */ in dev_pm_opp_of_cpumask_add_table()
1255 * Returns -ENOENT if operating-points-v2 bindings aren't supported.
1258 * dev_pm_opp_of_get_sharing_cpus() - Get cpumask of CPUs sharing OPPs with
1259 * @cpu_dev using operating-points-v2
1265 * This updates the @cpumask with CPUs that are sharing OPPs with @cpu_dev.
1267 * Returns -ENOENT if operating-points-v2 isn't present for @cpu_dev.
1279 return -ENOENT; in dev_pm_opp_of_get_sharing_cpus()
1282 cpumask_set_cpu(cpu_dev->id, cpumask); in dev_pm_opp_of_get_sharing_cpus()
1284 /* OPPs are shared ? */ in dev_pm_opp_of_get_sharing_cpus()
1285 if (!of_property_read_bool(np, "opp-shared")) in dev_pm_opp_of_get_sharing_cpus()
1292 if (cpu == cpu_dev->id) in dev_pm_opp_of_get_sharing_cpus()
1299 return -ENOENT; in dev_pm_opp_of_get_sharing_cpus()
1306 return -ENOENT; in dev_pm_opp_of_get_sharing_cpus()
1319 …* of_get_required_opp_performance_state() - Search for required OPP and return its performance sta…
1320 * @np: Node that contains the "required-opps" property.
1323 * Returns the performance state of the OPP pointed out by the "required-opps"
1334 int pstate = -EINVAL; in of_get_required_opp_performance_state()
1338 return -ENODEV; in of_get_required_opp_performance_state()
1342 pr_err("%s: Failed to find required OPP table %pOF: %ld\n", in of_get_required_opp_performance_state()
1348 if (unlikely(!opp_table->is_genpd)) { in of_get_required_opp_performance_state()
1350 return -EINVAL; in of_get_required_opp_performance_state()
1355 if (opp->level == OPP_LEVEL_UNSET) { in of_get_required_opp_performance_state()
1359 pstate = opp->level; in of_get_required_opp_performance_state()
1368 * dev_pm_opp_of_has_required_opp - Find out if a required-opps exists.
1371 * Returns true if the device's node has a "operating-points-v2" property and if
1372 * the corresponding node for the opp-table describes opp nodes that uses the
1373 * "required-opps" property.
1375 * Return: True if a required-opps is present, else false.
1382 opp_np = _opp_of_get_opp_desc_node(dev->of_node, 0); in dev_pm_opp_of_has_required_opp()
1392 count = of_count_phandle_with_args(np, "required-opps", NULL); in dev_pm_opp_of_has_required_opp()
1398 * dev_pm_opp_get_of_node() - Gets the DT node corresponding to an opp
1412 return of_node_get(opp->np); in dev_pm_opp_get_of_node()
1423 * Returns 0 on success or a proper -EINVAL value in case of error.
1435 return -EINVAL; in _get_dt_power()
1439 return -EINVAL; in _get_dt_power()
1448 * dev_pm_opp_calc_power() - Calculate power value for device with EM
1462 * Returns -EINVAL if the power calculation failed because of missing
1475 np = of_node_get(dev->of_node); in dev_pm_opp_calc_power()
1477 return -EINVAL; in dev_pm_opp_calc_power()
1479 ret = of_property_read_u32(np, "dynamic-power-coefficient", &cap); in dev_pm_opp_calc_power()
1481 return -EINVAL; in dev_pm_opp_calc_power()
1486 return -EINVAL; in dev_pm_opp_calc_power()
1490 return -EINVAL; in dev_pm_opp_calc_power()
1493 /* Provide power in micro-Watts */ in dev_pm_opp_calc_power()
1517 * dev_pm_opp_of_register_em() - Attempt to register an Energy Model
1522 * This checks whether the "dynamic-power-coefficient" devicetree property has
1524 * Having this property means the voltages are known for OPPs and the EM
1535 ret = -EINVAL; in dev_pm_opp_of_register_em()
1541 ret = -EINVAL; in dev_pm_opp_of_register_em()
1551 np = of_node_get(dev->of_node); in dev_pm_opp_of_register_em()
1553 ret = -EINVAL; in dev_pm_opp_of_register_em()
1558 * Register an EM only if the 'dynamic-power-coefficient' property is in dev_pm_opp_of_register_em()
1564 ret = of_property_read_u32(np, "dynamic-power-coefficient", &cap); in dev_pm_opp_of_register_em()
1566 dev_dbg(dev, "Couldn't find proper 'dynamic-power-coefficient' in DT\n"); in dev_pm_opp_of_register_em()
1567 ret = -EINVAL; in dev_pm_opp_of_register_em()