Lines Matching +full:required +full:- +full:opps
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
26 * The root of the list of all opp-tables. All opp_table structures branch off
27 * from here, with each opp_table containing the list of opps it supports in
32 /* OPP tables with uninitialized required OPPs */
48 mutex_lock(&opp_table->lock); in _find_opp_dev()
49 list_for_each_entry(opp_dev, &opp_table->dev_list, node) in _find_opp_dev()
50 if (opp_dev->dev == dev) { in _find_opp_dev()
55 mutex_unlock(&opp_table->lock); in _find_opp_dev()
70 return ERR_PTR(-ENODEV); in _find_opp_table_unlocked()
74 * _find_opp_table() - find opp_table struct using device pointer
79 * Return: pointer to 'struct opp_table' if found, otherwise -ENODEV or
80 * -EINVAL based on type of error.
90 return ERR_PTR(-EINVAL); in _find_opp_table()
109 return !WARN_ON(opp_table->clk_count > 1); in assert_single_clk()
113 * dev_pm_opp_get_voltage() - Gets the voltage corresponding to an opp
128 return opp->supplies[0].u_volt; in dev_pm_opp_get_voltage()
133 * dev_pm_opp_get_supplies() - Gets the supply information corresponding to an opp
148 return -EINVAL; in dev_pm_opp_get_supplies()
151 memcpy(supplies, opp->supplies, in dev_pm_opp_get_supplies()
152 sizeof(*supplies) * opp->opp_table->regulator_count); in dev_pm_opp_get_supplies()
158 * dev_pm_opp_get_power() - Gets the power corresponding to an opp
175 for (i = 0; i < opp->opp_table->regulator_count; i++) in dev_pm_opp_get_power()
176 opp_power += opp->supplies[i].u_watt; in dev_pm_opp_get_power()
183 * dev_pm_opp_get_freq() - Gets the frequency corresponding to an available opp
196 if (!assert_single_clk(opp->opp_table)) in dev_pm_opp_get_freq()
199 return opp->rates[0]; in dev_pm_opp_get_freq()
204 * dev_pm_opp_get_level() - Gets the level corresponding to an available opp
212 if (IS_ERR_OR_NULL(opp) || !opp->available) { in dev_pm_opp_get_level()
217 return opp->level; in dev_pm_opp_get_level()
222 * dev_pm_opp_get_required_pstate() - Gets the required performance state
225 * @index: index of the required opp
228 * required opp, else return 0.
233 if (IS_ERR_OR_NULL(opp) || !opp->available || in dev_pm_opp_get_required_pstate()
234 index >= opp->opp_table->required_opp_count) { in dev_pm_opp_get_required_pstate()
239 /* required-opps not fully initialized yet */ in dev_pm_opp_get_required_pstate()
240 if (lazy_linking_pending(opp->opp_table)) in dev_pm_opp_get_required_pstate()
243 return opp->required_opps[index]->pstate; in dev_pm_opp_get_required_pstate()
248 * dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not
251 * Turbo OPPs are not for normal use, and can be enabled (under certain
259 if (IS_ERR_OR_NULL(opp) || !opp->available) { in dev_pm_opp_is_turbo()
264 return opp->turbo; in dev_pm_opp_is_turbo()
269 * dev_pm_opp_get_max_clock_latency() - Get max clock latency in nanoseconds
283 clock_latency_ns = opp_table->clock_latency_ns_max; in dev_pm_opp_get_max_clock_latency()
292 * dev_pm_opp_get_max_volt_latency() - Get max voltage latency in nanoseconds
313 /* Regulator may not be required for the device */ in dev_pm_opp_get_max_volt_latency()
314 if (!opp_table->regulators) in dev_pm_opp_get_max_volt_latency()
317 count = opp_table->regulator_count; in dev_pm_opp_get_max_volt_latency()
323 mutex_lock(&opp_table->lock); in dev_pm_opp_get_max_volt_latency()
329 list_for_each_entry(opp, &opp_table->opp_list, node) { in dev_pm_opp_get_max_volt_latency()
330 if (!opp->available) in dev_pm_opp_get_max_volt_latency()
333 if (opp->supplies[i].u_volt_min < uV[i].min) in dev_pm_opp_get_max_volt_latency()
334 uV[i].min = opp->supplies[i].u_volt_min; in dev_pm_opp_get_max_volt_latency()
335 if (opp->supplies[i].u_volt_max > uV[i].max) in dev_pm_opp_get_max_volt_latency()
336 uV[i].max = opp->supplies[i].u_volt_max; in dev_pm_opp_get_max_volt_latency()
340 mutex_unlock(&opp_table->lock); in dev_pm_opp_get_max_volt_latency()
347 reg = opp_table->regulators[i]; in dev_pm_opp_get_max_volt_latency()
362 * dev_pm_opp_get_max_transition_latency() - Get max transition latency in
377 * dev_pm_opp_get_suspend_opp_freq() - Get frequency of suspend opp in Hz
392 if (opp_table->suspend_opp && opp_table->suspend_opp->available) in dev_pm_opp_get_suspend_opp_freq()
393 freq = dev_pm_opp_get_freq(opp_table->suspend_opp); in dev_pm_opp_get_suspend_opp_freq()
406 mutex_lock(&opp_table->lock); in _get_opp_count()
408 list_for_each_entry(opp, &opp_table->opp_list, node) { in _get_opp_count()
409 if (opp->available) in _get_opp_count()
413 mutex_unlock(&opp_table->lock); in _get_opp_count()
419 * dev_pm_opp_get_opp_count() - Get number of opps available in the opp table
422 * Return: This function returns the number of available opps if there are any,
448 return opp->rates[0]; in _read_freq()
453 return opp->level; in _read_level()
458 return opp->bandwidth[index].peak; in _read_bw()
502 struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); in _opp_table_find_key()
506 return ERR_PTR(-EINVAL); in _opp_table_find_key()
508 mutex_lock(&opp_table->lock); in _opp_table_find_key()
510 list_for_each_entry(temp_opp, &opp_table->opp_list, node) { in _opp_table_find_key()
511 if (temp_opp->available == available) { in _opp_table_find_key()
523 mutex_unlock(&opp_table->lock); in _opp_table_find_key()
594 * dev_pm_opp_find_freq_exact() - search for an exact frequency
597 * @available: true/false - match for available opp
613 * The callers are required to call dev_pm_opp_put() for the returned OPP after
632 * dev_pm_opp_find_freq_ceil() - Search for an rounded ceil freq
646 * The callers are required to call dev_pm_opp_put() for the returned OPP after
657 * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq
671 * The callers are required to call dev_pm_opp_put() for the returned OPP after
682 * dev_pm_opp_find_level_exact() - search for an exact level
693 * The callers are required to call dev_pm_opp_put() for the returned OPP after
704 * dev_pm_opp_find_level_ceil() - search for an rounded up level
715 * The callers are required to call dev_pm_opp_put() for the returned OPP after
731 * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth
734 * @index: which bandwidth to compare, in case of OPPs with several values
746 * The callers are required to call dev_pm_opp_put() for the returned OPP after
762 * dev_pm_opp_find_bw_floor() - Search for a rounded floor bandwidth
765 * @index: which bandwidth to compare, in case of OPPs with several values
777 * The callers are required to call dev_pm_opp_put() for the returned OPP after
805 supply->u_volt_min, supply->u_volt, supply->u_volt_max); in _set_opp_voltage()
807 ret = regulator_set_voltage_triplet(reg, supply->u_volt_min, in _set_opp_voltage()
808 supply->u_volt, supply->u_volt_max); in _set_opp_voltage()
811 __func__, supply->u_volt_min, supply->u_volt, in _set_opp_voltage()
812 supply->u_volt_max, ret); in _set_opp_voltage()
829 freq = opp->rates[0]; in _opp_config_clk_single()
832 return -EINVAL; in _opp_config_clk_single()
835 ret = clk_set_rate(opp_table->clk, freq); in _opp_config_clk_single()
840 opp_table->rate_clk_single = freq; in _opp_config_clk_single()
857 for (i = opp_table->clk_count - 1; i >= 0; i--) { in dev_pm_opp_config_clks_simple()
858 ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); in dev_pm_opp_config_clks_simple()
866 for (i = 0; i < opp_table->clk_count; i++) { in dev_pm_opp_config_clks_simple()
867 ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); in dev_pm_opp_config_clks_simple()
890 return -EINVAL; in _opp_config_regulator_single()
893 ret = _set_opp_voltage(dev, reg, new_opp->supplies); in _opp_config_regulator_single()
899 * some boot-enabled regulators. in _opp_config_regulator_single()
901 if (unlikely(!new_opp->opp_table->enabled)) { in _opp_config_regulator_single()
916 if (!opp_table->paths) in _set_opp_bw()
919 for (i = 0; i < opp_table->path_count; i++) { in _set_opp_bw()
924 avg = opp->bandwidth[i].avg; in _set_opp_bw()
925 peak = opp->bandwidth[i].peak; in _set_opp_bw()
927 ret = icc_set_bw(opp_table->paths[i], avg, peak); in _set_opp_bw()
941 unsigned int pstate = likely(opp) ? opp->required_opps[i]->pstate : 0; in _set_required_opp()
961 struct opp_table **required_opp_tables = opp_table->required_opp_tables; in _set_required_opps()
962 struct device **genpd_virt_devs = opp_table->genpd_virt_devs; in _set_required_opps()
968 /* required-opps not fully initialized yet */ in _set_required_opps()
970 return -EBUSY; in _set_required_opps()
973 * We only support genpd's OPPs in the "required-opps" for now, as we in _set_required_opps()
974 * don't know much about other use cases. Error out if the required OPP in _set_required_opps()
977 if (unlikely(!required_opp_tables[0]->is_genpd)) { in _set_required_opps()
978 dev_err(dev, "required-opps don't belong to a genpd\n"); in _set_required_opps()
979 return -ENOENT; in _set_required_opps()
992 mutex_lock(&opp_table->genpd_virt_dev_lock); in _set_required_opps()
994 /* Scaling up? Set required OPPs in normal order, else reverse */ in _set_required_opps()
996 for (i = 0; i < opp_table->required_opp_count; i++) { in _set_required_opps()
1002 for (i = opp_table->required_opp_count - 1; i >= 0; i--) { in _set_required_opps()
1009 mutex_unlock(&opp_table->genpd_virt_dev_lock); in _set_required_opps()
1016 struct dev_pm_opp *opp = ERR_PTR(-ENODEV); in _find_current_opp()
1019 if (!IS_ERR(opp_table->clk)) { in _find_current_opp()
1020 freq = clk_get_rate(opp_table->clk); in _find_current_opp()
1030 mutex_lock(&opp_table->lock); in _find_current_opp()
1031 opp = list_first_entry(&opp_table->opp_list, struct dev_pm_opp, node); in _find_current_opp()
1033 mutex_unlock(&opp_table->lock); in _find_current_opp()
1036 opp_table->current_opp = opp; in _find_current_opp()
1043 if (!opp_table->enabled) in _disable_opp_table()
1058 if (opp_table->regulators) in _disable_opp_table()
1059 regulator_disable(opp_table->regulators[0]); in _disable_opp_table()
1063 opp_table->enabled = false; in _disable_opp_table()
1077 if (unlikely(!opp_table->current_opp)) in _set_opp()
1080 old_opp = opp_table->current_opp; in _set_opp()
1083 if (!forced && old_opp == opp && opp_table->enabled) { in _set_opp()
1084 dev_dbg(dev, "%s: OPPs are same, nothing to do\n", __func__); in _set_opp()
1088 dev_dbg(dev, "%s: switching OPP: Freq %lu -> %lu Hz, Level %u -> %u, Bw %u -> %u\n", in _set_opp()
1089 __func__, old_opp->rates[0], opp->rates[0], old_opp->level, in _set_opp()
1090 opp->level, old_opp->bandwidth ? old_opp->bandwidth[0].peak : 0, in _set_opp()
1091 opp->bandwidth ? opp->bandwidth[0].peak : 0); in _set_opp()
1094 if (scaling_down == -1) in _set_opp()
1097 /* Scaling up? Configure required OPPs before frequency */ in _set_opp()
1101 dev_err(dev, "Failed to set required opps: %d\n", ret); in _set_opp()
1111 if (opp_table->config_regulators) { in _set_opp()
1112 ret = opp_table->config_regulators(dev, old_opp, opp, in _set_opp()
1113 opp_table->regulators, in _set_opp()
1114 opp_table->regulator_count); in _set_opp()
1123 if (opp_table->config_clks) { in _set_opp()
1124 ret = opp_table->config_clks(dev, opp_table, opp, clk_data, scaling_down); in _set_opp()
1129 /* Scaling down? Configure required OPPs after frequency */ in _set_opp()
1131 if (opp_table->config_regulators) { in _set_opp()
1132 ret = opp_table->config_regulators(dev, old_opp, opp, in _set_opp()
1133 opp_table->regulators, in _set_opp()
1134 opp_table->regulator_count); in _set_opp()
1150 dev_err(dev, "Failed to set required opps: %d\n", ret); in _set_opp()
1155 opp_table->enabled = true; in _set_opp()
1160 opp_table->current_opp = opp; in _set_opp()
1166 * dev_pm_opp_set_rate() - Configure new OPP based on frequency
1170 * This configures the power-supplies to the levels specified by the OPP
1199 ret = opp_table->config_clks(dev, opp_table, NULL, in dev_pm_opp_set_rate()
1204 freq = clk_round_rate(opp_table->clk, target_freq); in dev_pm_opp_set_rate()
1229 forced = opp_table->rate_clk_single != target_freq; in dev_pm_opp_set_rate()
1244 * dev_pm_opp_set_opp() - Configure device for OPP
1271 /* OPP-dev Helpers */
1276 list_del(&opp_dev->node); in _remove_opp_dev()
1289 /* Initialize opp-dev */ in _add_opp_dev()
1290 opp_dev->dev = dev; in _add_opp_dev()
1292 mutex_lock(&opp_table->lock); in _add_opp_dev()
1293 list_add(&opp_dev->node, &opp_table->dev_list); in _add_opp_dev()
1294 mutex_unlock(&opp_table->lock); in _add_opp_dev()
1314 return ERR_PTR(-ENOMEM); in _allocate_opp_table()
1316 mutex_init(&opp_table->lock); in _allocate_opp_table()
1317 mutex_init(&opp_table->genpd_virt_dev_lock); in _allocate_opp_table()
1318 INIT_LIST_HEAD(&opp_table->dev_list); in _allocate_opp_table()
1319 INIT_LIST_HEAD(&opp_table->lazy); in _allocate_opp_table()
1321 opp_table->clk = ERR_PTR(-ENODEV); in _allocate_opp_table()
1324 opp_table->regulator_count = -1; in _allocate_opp_table()
1328 ret = -ENOMEM; in _allocate_opp_table()
1337 if (ret == -EPROBE_DEFER) in _allocate_opp_table()
1344 BLOCKING_INIT_NOTIFIER_HEAD(&opp_table->head); in _allocate_opp_table()
1345 INIT_LIST_HEAD(&opp_table->opp_list); in _allocate_opp_table()
1346 kref_init(&opp_table->kref); in _allocate_opp_table()
1359 kref_get(&opp_table->kref); in _get_opp_table_kref()
1372 if (!getclk || IS_ERR(opp_table) || !IS_ERR(opp_table->clk) || in _update_opp_table_clk()
1373 opp_table->clks) in _update_opp_table_clk()
1377 opp_table->clk = clk_get(dev, NULL); in _update_opp_table_clk()
1379 ret = PTR_ERR_OR_ZERO(opp_table->clk); in _update_opp_table_clk()
1381 opp_table->config_clks = _opp_config_clk_single; in _update_opp_table_clk()
1382 opp_table->clk_count = 1; in _update_opp_table_clk()
1386 if (ret == -ENOENT) { in _update_opp_table_clk()
1392 * contain "opp-hz" property though, which we need to parse and in _update_opp_table_clk()
1397 * frequency in opp->rates and also parse the entries in DT. in _update_opp_table_clk()
1399 opp_table->clk_count = 1; in _update_opp_table_clk()
1457 opp_table = ERR_PTR(-ENOMEM); in _add_opp_table_indexed()
1466 list_add(&opp_table->node, &opp_tables); in _add_opp_table_indexed()
1495 list_del(&opp_table->node); in _opp_table_kref_release()
1498 if (opp_table->current_opp) in _opp_table_kref_release()
1499 dev_pm_opp_put(opp_table->current_opp); in _opp_table_kref_release()
1504 if (!IS_ERR(opp_table->clk)) in _opp_table_kref_release()
1505 clk_put(opp_table->clk); in _opp_table_kref_release()
1507 if (opp_table->paths) { in _opp_table_kref_release()
1508 for (i = 0; i < opp_table->path_count; i++) in _opp_table_kref_release()
1509 icc_put(opp_table->paths[i]); in _opp_table_kref_release()
1510 kfree(opp_table->paths); in _opp_table_kref_release()
1513 WARN_ON(!list_empty(&opp_table->opp_list)); in _opp_table_kref_release()
1515 list_for_each_entry_safe(opp_dev, temp, &opp_table->dev_list, node) { in _opp_table_kref_release()
1520 if (opp_table->genpd_performance_state) in _opp_table_kref_release()
1521 dev_pm_genpd_set_performance_state((struct device *)(opp_dev->dev), 0); in _opp_table_kref_release()
1526 mutex_destroy(&opp_table->genpd_virt_dev_lock); in _opp_table_kref_release()
1527 mutex_destroy(&opp_table->lock); in _opp_table_kref_release()
1533 kref_put_mutex(&opp_table->kref, _opp_table_kref_release, in dev_pm_opp_put_opp_table()
1546 struct opp_table *opp_table = opp->opp_table; in _opp_kref_release()
1548 list_del(&opp->node); in _opp_kref_release()
1549 mutex_unlock(&opp_table->lock); in _opp_kref_release()
1555 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_REMOVE, opp); in _opp_kref_release()
1563 kref_get(&opp->kref); in dev_pm_opp_get()
1568 kref_put_mutex(&opp->kref, _opp_kref_release, &opp->opp_table->lock); in dev_pm_opp_put()
1573 * dev_pm_opp_remove() - Remove an OPP from OPP table
1591 mutex_lock(&opp_table->lock); in dev_pm_opp_remove()
1593 list_for_each_entry(iter, &opp_table->opp_list, node) { in dev_pm_opp_remove()
1594 if (iter->rates[0] == freq) { in dev_pm_opp_remove()
1600 mutex_unlock(&opp_table->lock); in dev_pm_opp_remove()
1623 mutex_lock(&opp_table->lock); in _opp_get_next()
1624 list_for_each_entry(temp, &opp_table->opp_list, node) { in _opp_get_next()
1629 if (!temp->removed && dynamic == temp->dynamic) { in _opp_get_next()
1635 mutex_unlock(&opp_table->lock); in _opp_get_next()
1642 * called without the opp_table->lock held.
1649 opp->removed = true; in _opp_remove_all()
1660 mutex_lock(&opp_table->lock); in _opp_remove_all_static()
1662 if (!opp_table->parsed_static_opps) { in _opp_remove_all_static()
1663 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1667 if (--opp_table->parsed_static_opps) { in _opp_remove_all_static()
1668 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1672 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1679 * dev_pm_opp_remove_all_dynamic() - Remove all dynamically created OPPs
1682 * This function removes all dynamically created OPPs from the opp table.
1705 supply_count = opp_table->regulator_count > 0 ? in _opp_allocate()
1706 opp_table->regulator_count : 1; in _opp_allocate()
1707 supply_size = sizeof(*opp->supplies) * supply_count; in _opp_allocate()
1708 clk_size = sizeof(*opp->rates) * opp_table->clk_count; in _opp_allocate()
1709 icc_size = sizeof(*opp->bandwidth) * opp_table->path_count; in _opp_allocate()
1717 opp->supplies = (struct dev_pm_opp_supply *)(opp + 1); in _opp_allocate()
1719 opp->rates = (unsigned long *)(opp->supplies + supply_count); in _opp_allocate()
1722 opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->rates + opp_table->clk_count); in _opp_allocate()
1724 INIT_LIST_HEAD(&opp->node); in _opp_allocate()
1735 if (!opp_table->regulators) in _opp_supported_by_regulators()
1738 for (i = 0; i < opp_table->regulator_count; i++) { in _opp_supported_by_regulators()
1739 reg = opp_table->regulators[i]; in _opp_supported_by_regulators()
1742 opp->supplies[i].u_volt_min, in _opp_supported_by_regulators()
1743 opp->supplies[i].u_volt_max)) { in _opp_supported_by_regulators()
1745 __func__, opp->supplies[i].u_volt_min, in _opp_supported_by_regulators()
1746 opp->supplies[i].u_volt_max); in _opp_supported_by_regulators()
1759 for (i = 0; i < opp_table->clk_count; i++) { in _opp_compare_rate()
1760 if (opp1->rates[i] != opp2->rates[i]) in _opp_compare_rate()
1761 return opp1->rates[i] < opp2->rates[i] ? -1 : 1; in _opp_compare_rate()
1764 /* Same rates for both OPPs */ in _opp_compare_rate()
1773 for (i = 0; i < opp_table->path_count; i++) { in _opp_compare_bw()
1774 if (opp1->bandwidth[i].peak != opp2->bandwidth[i].peak) in _opp_compare_bw()
1775 return opp1->bandwidth[i].peak < opp2->bandwidth[i].peak ? -1 : 1; in _opp_compare_bw()
1778 /* Same bw for both OPPs */ in _opp_compare_bw()
1786 * -1: opp1 < opp2
1801 if (opp1->level != opp2->level) in _opp_compare_key()
1802 return opp1->level < opp2->level ? -1 : 1; in _opp_compare_key()
1804 /* Duplicate OPPs */ in _opp_compare_key()
1819 * Need to use &opp_table->opp_list in the condition part of the 'for' in _opp_is_duplicate()
1823 list_for_each_entry(opp, &opp_table->opp_list, node) { in _opp_is_duplicate()
1826 *head = &opp->node; in _opp_is_duplicate()
1833 /* Duplicate OPPs */ in _opp_is_duplicate()
1834 …dev_warn(dev, "%s: duplicate OPPs detected. Existing: freq: %lu, volt: %lu, enabled: %d. New: freq… in _opp_is_duplicate()
1835 __func__, opp->rates[0], opp->supplies[0].u_volt, in _opp_is_duplicate()
1836 opp->available, new_opp->rates[0], in _opp_is_duplicate()
1837 new_opp->supplies[0].u_volt, new_opp->available); in _opp_is_duplicate()
1840 return opp->available && in _opp_is_duplicate()
1841 new_opp->supplies[0].u_volt == opp->supplies[0].u_volt ? -EBUSY : -EEXIST; in _opp_is_duplicate()
1852 if (opp->required_opps[i]->available) in _required_opps_available()
1855 opp->available = false; in _required_opps_available()
1856 pr_warn("%s: OPP not supported by required OPP %pOF (%lu)\n", in _required_opps_available()
1857 __func__, opp->required_opps[i]->np, opp->rates[0]); in _required_opps_available()
1864 * 0: On success. And appropriate error message for duplicate OPPs.
1865 * -EBUSY: For OPP with same freq/volt and is available. The callers of
1866 * _opp_add() must return 0 if they receive -EBUSY from it. This is to make
1869 * -EEXIST: For OPP with same freq but different volt or is unavailable. This
1878 mutex_lock(&opp_table->lock); in _opp_add()
1879 head = &opp_table->opp_list; in _opp_add()
1883 mutex_unlock(&opp_table->lock); in _opp_add()
1887 list_add(&new_opp->node, head); in _opp_add()
1888 mutex_unlock(&opp_table->lock); in _opp_add()
1890 new_opp->opp_table = opp_table; in _opp_add()
1891 kref_init(&new_opp->kref); in _opp_add()
1896 new_opp->available = false; in _opp_add()
1898 __func__, new_opp->rates[0]); in _opp_add()
1901 /* required-opps not fully initialized yet */ in _opp_add()
1905 _required_opps_available(new_opp, opp_table->required_opp_count); in _opp_add()
1911 * _opp_add_v1() - Allocate a OPP based on v1 bindings.
1916 * @dynamic: Dynamically added OPPs.
1922 * NOTE: "dynamic" parameter impacts OPPs added by the dev_pm_opp_of_add_table
1927 * Duplicate OPPs (both freq and volt are same) and opp->available
1928 * -EEXIST Freq are same and volt are different OR
1929 * Duplicate OPPs (both freq and volt are same) and !opp->available
1930 * -ENOMEM Memory allocation failure
1940 return -EINVAL; in _opp_add_v1()
1944 return -ENOMEM; in _opp_add_v1()
1947 new_opp->rates[0] = freq; in _opp_add_v1()
1948 tol = u_volt * opp_table->voltage_tolerance_v1 / 100; in _opp_add_v1()
1949 new_opp->supplies[0].u_volt = u_volt; in _opp_add_v1()
1950 new_opp->supplies[0].u_volt_min = u_volt - tol; in _opp_add_v1()
1951 new_opp->supplies[0].u_volt_max = u_volt + tol; in _opp_add_v1()
1952 new_opp->available = true; in _opp_add_v1()
1953 new_opp->dynamic = dynamic; in _opp_add_v1()
1957 /* Don't return error for duplicate OPPs */ in _opp_add_v1()
1958 if (ret == -EBUSY) in _opp_add_v1()
1967 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADD, new_opp); in _opp_add_v1()
1977 * _opp_set_supported_hw() - Set supported platforms
1978 * @dev: Device for which supported-hw has to be set.
1982 * This is required only for the V2 bindings, and it enables a platform to
1984 * OPPs, which are available for those versions, based on its 'opp-supported-hw'
1991 if (opp_table->supported_hw) in _opp_set_supported_hw()
1994 opp_table->supported_hw = kmemdup(versions, count * sizeof(*versions), in _opp_set_supported_hw()
1996 if (!opp_table->supported_hw) in _opp_set_supported_hw()
1997 return -ENOMEM; in _opp_set_supported_hw()
1999 opp_table->supported_hw_count = count; in _opp_set_supported_hw()
2005 * _opp_put_supported_hw() - Releases resources blocked for supported hw
2008 * This is required only for the V2 bindings, and is called for a matching
2014 if (opp_table->supported_hw) { in _opp_put_supported_hw()
2015 kfree(opp_table->supported_hw); in _opp_put_supported_hw()
2016 opp_table->supported_hw = NULL; in _opp_put_supported_hw()
2017 opp_table->supported_hw_count = 0; in _opp_put_supported_hw()
2022 * _opp_set_prop_name() - Set prop-extn name
2023 * @dev: Device for which the prop-name has to be set.
2026 * This is required only for the V2 bindings, and it enables a platform to
2028 * which the extension will apply are opp-microvolt and opp-microamp. OPP core
2029 * should postfix the property name with -<name> while looking for them.
2034 if (!opp_table->prop_name) { in _opp_set_prop_name()
2035 opp_table->prop_name = kstrdup(name, GFP_KERNEL); in _opp_set_prop_name()
2036 if (!opp_table->prop_name) in _opp_set_prop_name()
2037 return -ENOMEM; in _opp_set_prop_name()
2044 * _opp_put_prop_name() - Releases resources blocked for prop-name
2047 * This is required only for the V2 bindings, and is called for a matching
2053 if (opp_table->prop_name) { in _opp_put_prop_name()
2054 kfree(opp_table->prop_name); in _opp_put_prop_name()
2055 opp_table->prop_name = NULL; in _opp_put_prop_name()
2060 * _opp_set_regulators() - Set regulator names for the device
2066 * device's regulators, as the core would be required to switch voltages as
2069 * This must be called before any OPPs are initialized for the device.
2083 return -EINVAL; in _opp_set_regulators()
2086 if (opp_table->regulators) in _opp_set_regulators()
2089 opp_table->regulators = kmalloc_array(count, in _opp_set_regulators()
2090 sizeof(*opp_table->regulators), in _opp_set_regulators()
2092 if (!opp_table->regulators) in _opp_set_regulators()
2093 return -ENOMEM; in _opp_set_regulators()
2104 opp_table->regulators[i] = reg; in _opp_set_regulators()
2107 opp_table->regulator_count = count; in _opp_set_regulators()
2111 opp_table->config_regulators = _opp_config_regulator_single; in _opp_set_regulators()
2117 regulator_put(opp_table->regulators[--i]); in _opp_set_regulators()
2119 kfree(opp_table->regulators); in _opp_set_regulators()
2120 opp_table->regulators = NULL; in _opp_set_regulators()
2121 opp_table->regulator_count = -1; in _opp_set_regulators()
2127 * _opp_put_regulators() - Releases resources blocked for regulator
2134 if (!opp_table->regulators) in _opp_put_regulators()
2137 if (opp_table->enabled) { in _opp_put_regulators()
2138 for (i = opp_table->regulator_count - 1; i >= 0; i--) in _opp_put_regulators()
2139 regulator_disable(opp_table->regulators[i]); in _opp_put_regulators()
2142 for (i = opp_table->regulator_count - 1; i >= 0; i--) in _opp_put_regulators()
2143 regulator_put(opp_table->regulators[i]); in _opp_put_regulators()
2145 kfree(opp_table->regulators); in _opp_put_regulators()
2146 opp_table->regulators = NULL; in _opp_put_regulators()
2147 opp_table->regulator_count = -1; in _opp_put_regulators()
2154 for (i = count - 1; i >= 0; i--) in _put_clks()
2155 clk_put(opp_table->clks[i]); in _put_clks()
2157 kfree(opp_table->clks); in _put_clks()
2158 opp_table->clks = NULL; in _put_clks()
2162 * _opp_set_clknames() - Set clk names for the device
2168 * (i.e. by passing connection-id as NULL), but for a device with multiple
2172 * This must be called before any OPPs are initialized for the device.
2195 return -EINVAL; in _opp_set_clknames()
2198 if (opp_table->clks) in _opp_set_clknames()
2201 opp_table->clks = kmalloc_array(count, sizeof(*opp_table->clks), in _opp_set_clknames()
2203 if (!opp_table->clks) in _opp_set_clknames()
2204 return -ENOMEM; in _opp_set_clknames()
2216 opp_table->clks[i] = clk; in _opp_set_clknames()
2219 opp_table->clk_count = count; in _opp_set_clknames()
2220 opp_table->config_clks = config_clks; in _opp_set_clknames()
2224 if (!opp_table->config_clks) in _opp_set_clknames()
2225 opp_table->config_clks = _opp_config_clk_single; in _opp_set_clknames()
2232 * - avoiding clks[0] everywhere else. in _opp_set_clknames()
2233 * - not running single clk helpers for multiple clk usecase by in _opp_set_clknames()
2236 * Since this is single-clk case, just update the clk pointer in _opp_set_clknames()
2239 opp_table->clk = opp_table->clks[0]; in _opp_set_clknames()
2250 * _opp_put_clknames() - Releases resources blocked for clks.
2255 if (!opp_table->clks) in _opp_put_clknames()
2258 opp_table->config_clks = NULL; in _opp_put_clknames()
2259 opp_table->clk = ERR_PTR(-ENODEV); in _opp_put_clknames()
2261 _put_clks(opp_table, opp_table->clk_count); in _opp_put_clknames()
2265 * _opp_set_config_regulators_helper() - Register custom set regulator helper.
2271 * This must be called before any OPPs are initialized for the device.
2277 if (!opp_table->config_regulators) in _opp_set_config_regulators_helper()
2278 opp_table->config_regulators = config_regulators; in _opp_set_config_regulators_helper()
2284 * _opp_put_config_regulators_helper() - Releases resources blocked for
2292 if (opp_table->config_regulators) in _opp_put_config_regulators_helper()
2293 opp_table->config_regulators = NULL; in _opp_put_config_regulators_helper()
2300 if (!opp_table->genpd_virt_devs) in _detach_genpd()
2303 for (index = 0; index < opp_table->required_opp_count; index++) { in _detach_genpd()
2304 if (!opp_table->genpd_virt_devs[index]) in _detach_genpd()
2307 dev_pm_domain_detach(opp_table->genpd_virt_devs[index], false); in _detach_genpd()
2308 opp_table->genpd_virt_devs[index] = NULL; in _detach_genpd()
2311 kfree(opp_table->genpd_virt_devs); in _detach_genpd()
2312 opp_table->genpd_virt_devs = NULL; in _detach_genpd()
2316 * _opp_attach_genpd - Attach genpd(s) for the device and save virtual device pointer
2322 * virtual genpd devices, which are created for each consumer device - genpd
2324 * and are required by the OPP core to set the performance state of the genpd.
2335 * "required-opps" are added in DT.
2341 int index = 0, ret = -EINVAL; in _opp_attach_genpd()
2344 if (opp_table->genpd_virt_devs) in _opp_attach_genpd()
2349 * required-opps fail for dev. We should retry this after genpd's OPP in _opp_attach_genpd()
2352 if (!opp_table->required_opp_count) in _opp_attach_genpd()
2353 return -EPROBE_DEFER; in _opp_attach_genpd()
2355 mutex_lock(&opp_table->genpd_virt_dev_lock); in _opp_attach_genpd()
2357 opp_table->genpd_virt_devs = kcalloc(opp_table->required_opp_count, in _opp_attach_genpd()
2358 sizeof(*opp_table->genpd_virt_devs), in _opp_attach_genpd()
2360 if (!opp_table->genpd_virt_devs) in _opp_attach_genpd()
2364 if (index >= opp_table->required_opp_count) { in _opp_attach_genpd()
2365 dev_err(dev, "Index can't be greater than required-opp-count - 1, %s (%d : %d)\n", in _opp_attach_genpd()
2366 *name, opp_table->required_opp_count, index); in _opp_attach_genpd()
2372 ret = PTR_ERR(virt_dev) ? : -ENODEV; in _opp_attach_genpd()
2377 opp_table->genpd_virt_devs[index] = virt_dev; in _opp_attach_genpd()
2383 *virt_devs = opp_table->genpd_virt_devs; in _opp_attach_genpd()
2384 mutex_unlock(&opp_table->genpd_virt_dev_lock); in _opp_attach_genpd()
2391 mutex_unlock(&opp_table->genpd_virt_dev_lock); in _opp_attach_genpd()
2397 * _opp_detach_genpd() - Detach genpd(s) from the device.
2409 mutex_lock(&opp_table->genpd_virt_dev_lock); in _opp_detach_genpd()
2411 mutex_unlock(&opp_table->genpd_virt_dev_lock); in _opp_detach_genpd()
2416 if (data->flags & OPP_CONFIG_GENPD) in _opp_clear_config()
2417 _opp_detach_genpd(data->opp_table); in _opp_clear_config()
2418 if (data->flags & OPP_CONFIG_REGULATOR) in _opp_clear_config()
2419 _opp_put_regulators(data->opp_table); in _opp_clear_config()
2420 if (data->flags & OPP_CONFIG_SUPPORTED_HW) in _opp_clear_config()
2421 _opp_put_supported_hw(data->opp_table); in _opp_clear_config()
2422 if (data->flags & OPP_CONFIG_REGULATOR_HELPER) in _opp_clear_config()
2423 _opp_put_config_regulators_helper(data->opp_table); in _opp_clear_config()
2424 if (data->flags & OPP_CONFIG_PROP_NAME) in _opp_clear_config()
2425 _opp_put_prop_name(data->opp_table); in _opp_clear_config()
2426 if (data->flags & OPP_CONFIG_CLK) in _opp_clear_config()
2427 _opp_put_clknames(data->opp_table); in _opp_clear_config()
2429 dev_pm_opp_put_opp_table(data->opp_table); in _opp_clear_config()
2434 * dev_pm_opp_set_config() - Set OPP configuration for the device.
2440 * This must be called before any OPPs are initialized for the device. This may
2459 return -ENOMEM; in dev_pm_opp_set_config()
2467 data->opp_table = opp_table; in dev_pm_opp_set_config()
2468 data->flags = 0; in dev_pm_opp_set_config()
2470 /* This should be called before OPPs are initialized */ in dev_pm_opp_set_config()
2471 if (WARN_ON(!list_empty(&opp_table->opp_list))) { in dev_pm_opp_set_config()
2472 ret = -EBUSY; in dev_pm_opp_set_config()
2477 if (config->clk_names) { in dev_pm_opp_set_config()
2478 ret = _opp_set_clknames(opp_table, dev, config->clk_names, in dev_pm_opp_set_config()
2479 config->config_clks); in dev_pm_opp_set_config()
2483 data->flags |= OPP_CONFIG_CLK; in dev_pm_opp_set_config()
2484 } else if (config->config_clks) { in dev_pm_opp_set_config()
2486 ret = -EINVAL; in dev_pm_opp_set_config()
2491 if (config->prop_name) { in dev_pm_opp_set_config()
2492 ret = _opp_set_prop_name(opp_table, config->prop_name); in dev_pm_opp_set_config()
2496 data->flags |= OPP_CONFIG_PROP_NAME; in dev_pm_opp_set_config()
2500 if (config->config_regulators) { in dev_pm_opp_set_config()
2502 config->config_regulators); in dev_pm_opp_set_config()
2506 data->flags |= OPP_CONFIG_REGULATOR_HELPER; in dev_pm_opp_set_config()
2510 if (config->supported_hw) { in dev_pm_opp_set_config()
2511 ret = _opp_set_supported_hw(opp_table, config->supported_hw, in dev_pm_opp_set_config()
2512 config->supported_hw_count); in dev_pm_opp_set_config()
2516 data->flags |= OPP_CONFIG_SUPPORTED_HW; in dev_pm_opp_set_config()
2520 if (config->regulator_names) { in dev_pm_opp_set_config()
2522 config->regulator_names); in dev_pm_opp_set_config()
2526 data->flags |= OPP_CONFIG_REGULATOR; in dev_pm_opp_set_config()
2530 if (config->genpd_names) { in dev_pm_opp_set_config()
2531 ret = _opp_attach_genpd(opp_table, dev, config->genpd_names, in dev_pm_opp_set_config()
2532 config->virt_devs); in dev_pm_opp_set_config()
2536 data->flags |= OPP_CONFIG_GENPD; in dev_pm_opp_set_config()
2553 * dev_pm_opp_clear_config() - Releases resources blocked for OPP configuration.
2558 * the OPPs properly.
2590 * devm_pm_opp_set_config() - Set OPP configuration for the device.
2595 * This is a resource-managed variant of dev_pm_opp_set_config().
2612 * dev_pm_opp_xlate_required_opp() - Find required OPP for @src_table OPP.
2613 * @src_table: OPP table which has @dst_table as one of its required OPP table.
2614 * @dst_table: Required OPP table of the @src_table.
2618 * "required-opps" property of the @src_opp (present in @src_table).
2620 * The callers are required to call dev_pm_opp_put() for the returned OPP after
2629 struct dev_pm_opp *opp, *dest_opp = ERR_PTR(-ENODEV); in dev_pm_opp_xlate_required_opp()
2633 !src_table->required_opp_tables) in dev_pm_opp_xlate_required_opp()
2634 return ERR_PTR(-EINVAL); in dev_pm_opp_xlate_required_opp()
2636 /* required-opps not fully initialized yet */ in dev_pm_opp_xlate_required_opp()
2638 return ERR_PTR(-EBUSY); in dev_pm_opp_xlate_required_opp()
2640 for (i = 0; i < src_table->required_opp_count; i++) { in dev_pm_opp_xlate_required_opp()
2641 if (src_table->required_opp_tables[i] == dst_table) { in dev_pm_opp_xlate_required_opp()
2642 mutex_lock(&src_table->lock); in dev_pm_opp_xlate_required_opp()
2644 list_for_each_entry(opp, &src_table->opp_list, node) { in dev_pm_opp_xlate_required_opp()
2646 dest_opp = opp->required_opps[i]; in dev_pm_opp_xlate_required_opp()
2652 mutex_unlock(&src_table->lock); in dev_pm_opp_xlate_required_opp()
2667 * dev_pm_opp_xlate_performance_state() - Find required OPP's pstate for src_table.
2668 * @src_table: OPP table which has dst_table as one of its required OPP table.
2669 * @dst_table: Required OPP table of the src_table.
2673 * "required-opps" property of the OPP (present in @src_table) which has
2684 int dest_pstate = -EINVAL; in dev_pm_opp_xlate_performance_state()
2689 * point to one of the OPPs in the dst_table, but in some cases the in dev_pm_opp_xlate_performance_state()
2691 * and so none of them have the "required-opps" property set. Return the in dev_pm_opp_xlate_performance_state()
2694 if (!src_table || !src_table->required_opp_count) in dev_pm_opp_xlate_performance_state()
2697 /* required-opps not fully initialized yet */ in dev_pm_opp_xlate_performance_state()
2699 return -EBUSY; in dev_pm_opp_xlate_performance_state()
2701 for (i = 0; i < src_table->required_opp_count; i++) { in dev_pm_opp_xlate_performance_state()
2702 if (src_table->required_opp_tables[i]->np == dst_table->np) in dev_pm_opp_xlate_performance_state()
2706 if (unlikely(i == src_table->required_opp_count)) { in dev_pm_opp_xlate_performance_state()
2709 return -EINVAL; in dev_pm_opp_xlate_performance_state()
2712 mutex_lock(&src_table->lock); in dev_pm_opp_xlate_performance_state()
2714 list_for_each_entry(opp, &src_table->opp_list, node) { in dev_pm_opp_xlate_performance_state()
2715 if (opp->pstate == pstate) { in dev_pm_opp_xlate_performance_state()
2716 dest_pstate = opp->required_opps[i]->pstate; in dev_pm_opp_xlate_performance_state()
2725 mutex_unlock(&src_table->lock); in dev_pm_opp_xlate_performance_state()
2731 * dev_pm_opp_add() - Add an OPP table from a table definitions
2742 * Duplicate OPPs (both freq and volt are same) and opp->available
2743 * -EEXIST Freq are same and volt are different OR
2744 * Duplicate OPPs (both freq and volt are same) and !opp->available
2745 * -ENOMEM Memory allocation failure
2756 /* Fix regulator count for dynamic OPPs */ in dev_pm_opp_add()
2757 opp_table->regulator_count = 1; in dev_pm_opp_add()
2768 * _opp_set_availability() - helper to set the availability of an opp
2776 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2784 struct dev_pm_opp *tmp_opp, *opp = ERR_PTR(-ENODEV); in _opp_set_availability()
2796 r = -EINVAL; in _opp_set_availability()
2800 mutex_lock(&opp_table->lock); in _opp_set_availability()
2803 list_for_each_entry(tmp_opp, &opp_table->opp_list, node) { in _opp_set_availability()
2804 if (tmp_opp->rates[0] == freq) { in _opp_set_availability()
2816 if (opp->available == availability_req) in _opp_set_availability()
2819 opp->available = availability_req; in _opp_set_availability()
2822 mutex_unlock(&opp_table->lock); in _opp_set_availability()
2826 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE, in _opp_set_availability()
2829 blocking_notifier_call_chain(&opp_table->head, in _opp_set_availability()
2836 mutex_unlock(&opp_table->lock); in _opp_set_availability()
2843 * dev_pm_opp_adjust_voltage() - helper to change the voltage of an OPP
2850 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2860 struct dev_pm_opp *tmp_opp, *opp = ERR_PTR(-ENODEV); in dev_pm_opp_adjust_voltage()
2872 r = -EINVAL; in dev_pm_opp_adjust_voltage()
2876 mutex_lock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
2879 list_for_each_entry(tmp_opp, &opp_table->opp_list, node) { in dev_pm_opp_adjust_voltage()
2880 if (tmp_opp->rates[0] == freq) { in dev_pm_opp_adjust_voltage()
2892 if (opp->supplies->u_volt == u_volt) in dev_pm_opp_adjust_voltage()
2895 opp->supplies->u_volt = u_volt; in dev_pm_opp_adjust_voltage()
2896 opp->supplies->u_volt_min = u_volt_min; in dev_pm_opp_adjust_voltage()
2897 opp->supplies->u_volt_max = u_volt_max; in dev_pm_opp_adjust_voltage()
2900 mutex_unlock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
2903 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADJUST_VOLTAGE, in dev_pm_opp_adjust_voltage()
2910 mutex_unlock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
2918 * dev_pm_opp_enable() - Enable a specific OPP
2926 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2937 * dev_pm_opp_disable() - Disable a specific OPP
2946 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2957 * dev_pm_opp_register_notifier() - Register OPP notifier for the device
2972 ret = blocking_notifier_chain_register(&opp_table->head, nb); in dev_pm_opp_register_notifier()
2981 * dev_pm_opp_unregister_notifier() - Unregister OPP notifier for the device
2997 ret = blocking_notifier_chain_unregister(&opp_table->head, nb); in dev_pm_opp_unregister_notifier()
3006 * dev_pm_opp_remove_table() - Free all OPPs associated with the device
3009 * Free both OPPs created using static entries present in DT and the
3021 if (error != -ENODEV) in dev_pm_opp_remove_table()
3042 * dev_pm_opp_sync_regulators() - Sync state of voltage regulators
3060 /* Regulator may not be required for the device */ in dev_pm_opp_sync_regulators()
3061 if (unlikely(!opp_table->regulators)) in dev_pm_opp_sync_regulators()
3065 if (!opp_table->enabled) in dev_pm_opp_sync_regulators()
3068 for (i = 0; i < opp_table->regulator_count; i++) { in dev_pm_opp_sync_regulators()
3069 reg = opp_table->regulators[i]; in dev_pm_opp_sync_regulators()