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
45 mutex_lock(&opp_table->lock); in _find_opp_dev()
46 list_for_each_entry(opp_dev, &opp_table->dev_list, node) in _find_opp_dev()
47 if (opp_dev->dev == dev) { in _find_opp_dev()
52 mutex_unlock(&opp_table->lock); in _find_opp_dev()
67 return ERR_PTR(-ENODEV); in _find_opp_table_unlocked()
71 * _find_opp_table() - find opp_table struct using device pointer
76 * Return: pointer to 'struct opp_table' if found, otherwise -ENODEV or
77 * -EINVAL based on type of error.
87 return ERR_PTR(-EINVAL); in _find_opp_table()
106 return !WARN_ON(opp_table->clk_count > 1); in assert_single_clk()
110 * dev_pm_opp_get_voltage() - Gets the voltage corresponding to an opp
125 return opp->supplies[0].u_volt; in dev_pm_opp_get_voltage()
130 * dev_pm_opp_get_supplies() - Gets the supply information corresponding to an opp
145 return -EINVAL; in dev_pm_opp_get_supplies()
148 memcpy(supplies, opp->supplies, in dev_pm_opp_get_supplies()
149 sizeof(*supplies) * opp->opp_table->regulator_count); in dev_pm_opp_get_supplies()
155 * dev_pm_opp_get_power() - Gets the power corresponding to an opp
172 for (i = 0; i < opp->opp_table->regulator_count; i++) in dev_pm_opp_get_power()
173 opp_power += opp->supplies[i].u_watt; in dev_pm_opp_get_power()
180 * dev_pm_opp_get_freq_indexed() - Gets the frequency corresponding to an
183 * @index: index of the frequency within the required opp
190 if (IS_ERR_OR_NULL(opp) || index >= opp->opp_table->clk_count) { in dev_pm_opp_get_freq_indexed()
195 return opp->rates[index]; in dev_pm_opp_get_freq_indexed()
200 * dev_pm_opp_get_level() - Gets the level corresponding to an available opp
208 if (IS_ERR_OR_NULL(opp) || !opp->available) { in dev_pm_opp_get_level()
213 return opp->level; in dev_pm_opp_get_level()
218 * dev_pm_opp_get_required_pstate() - Gets the required performance state
221 * @index: index of the required opp
224 * required opp, else return U32_MAX.
229 if (IS_ERR_OR_NULL(opp) || !opp->available || in dev_pm_opp_get_required_pstate()
230 index >= opp->opp_table->required_opp_count) { in dev_pm_opp_get_required_pstate()
235 /* required-opps not fully initialized yet */ in dev_pm_opp_get_required_pstate()
236 if (lazy_linking_pending(opp->opp_table)) in dev_pm_opp_get_required_pstate()
239 /* The required OPP table must belong to a genpd */ in dev_pm_opp_get_required_pstate()
240 if (unlikely(!opp->opp_table->required_opp_tables[index]->is_genpd)) { in dev_pm_opp_get_required_pstate()
245 return opp->required_opps[index]->level; in dev_pm_opp_get_required_pstate()
250 * dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not
253 * Turbo OPPs are not for normal use, and can be enabled (under certain
261 if (IS_ERR_OR_NULL(opp) || !opp->available) { in dev_pm_opp_is_turbo()
266 return opp->turbo; in dev_pm_opp_is_turbo()
271 * dev_pm_opp_get_max_clock_latency() - Get max clock latency in nanoseconds
285 clock_latency_ns = opp_table->clock_latency_ns_max; in dev_pm_opp_get_max_clock_latency()
294 * dev_pm_opp_get_max_volt_latency() - Get max voltage latency in nanoseconds
315 /* Regulator may not be required for the device */ in dev_pm_opp_get_max_volt_latency()
316 if (!opp_table->regulators) in dev_pm_opp_get_max_volt_latency()
319 count = opp_table->regulator_count; in dev_pm_opp_get_max_volt_latency()
325 mutex_lock(&opp_table->lock); in dev_pm_opp_get_max_volt_latency()
331 list_for_each_entry(opp, &opp_table->opp_list, node) { in dev_pm_opp_get_max_volt_latency()
332 if (!opp->available) in dev_pm_opp_get_max_volt_latency()
335 if (opp->supplies[i].u_volt_min < uV[i].min) in dev_pm_opp_get_max_volt_latency()
336 uV[i].min = opp->supplies[i].u_volt_min; in dev_pm_opp_get_max_volt_latency()
337 if (opp->supplies[i].u_volt_max > uV[i].max) in dev_pm_opp_get_max_volt_latency()
338 uV[i].max = opp->supplies[i].u_volt_max; in dev_pm_opp_get_max_volt_latency()
342 mutex_unlock(&opp_table->lock); in dev_pm_opp_get_max_volt_latency()
349 reg = opp_table->regulators[i]; in dev_pm_opp_get_max_volt_latency()
364 * dev_pm_opp_get_max_transition_latency() - Get max transition latency in
379 * dev_pm_opp_get_suspend_opp_freq() - Get frequency of suspend opp in Hz
394 if (opp_table->suspend_opp && opp_table->suspend_opp->available) in dev_pm_opp_get_suspend_opp_freq()
395 freq = dev_pm_opp_get_freq(opp_table->suspend_opp); in dev_pm_opp_get_suspend_opp_freq()
408 mutex_lock(&opp_table->lock); in _get_opp_count()
410 list_for_each_entry(opp, &opp_table->opp_list, node) { in _get_opp_count()
411 if (opp->available) in _get_opp_count()
415 mutex_unlock(&opp_table->lock); in _get_opp_count()
421 * dev_pm_opp_get_opp_count() - Get number of opps available in the opp table
424 * Return: This function returns the number of available opps if there are any,
450 return opp->rates[index]; in _read_freq()
455 return opp->level; in _read_level()
460 return opp->bandwidth[index].peak; in _read_bw()
504 struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); in _opp_table_find_key()
508 return ERR_PTR(-EINVAL); in _opp_table_find_key()
510 mutex_lock(&opp_table->lock); in _opp_table_find_key()
512 list_for_each_entry(temp_opp, &opp_table->opp_list, node) { in _opp_table_find_key()
513 if (temp_opp->available == available) { in _opp_table_find_key()
525 mutex_unlock(&opp_table->lock); in _opp_table_find_key()
596 * dev_pm_opp_find_freq_exact() - search for an exact frequency
599 * @available: true/false - match for available opp
615 * The callers are required to call dev_pm_opp_put() for the returned OPP after
627 * dev_pm_opp_find_freq_exact_indexed() - Search for an exact freq for the
632 * @available: true/false - match for available opp
643 * The callers are required to call dev_pm_opp_put() for the returned OPP after
662 * dev_pm_opp_find_freq_ceil() - Search for an rounded ceil freq
676 * The callers are required to call dev_pm_opp_put() for the returned OPP after
687 * dev_pm_opp_find_freq_ceil_indexed() - Search for a rounded ceil freq for the
703 * The callers are required to call dev_pm_opp_put() for the returned OPP after
715 * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq
729 * The callers are required to call dev_pm_opp_put() for the returned OPP after
740 * dev_pm_opp_find_freq_floor_indexed() - Search for a rounded floor freq for the
756 * The callers are required to call dev_pm_opp_put() for the returned OPP after
768 * dev_pm_opp_find_level_exact() - search for an exact level
779 * The callers are required to call dev_pm_opp_put() for the returned OPP after
790 * dev_pm_opp_find_level_ceil() - search for an rounded up level
801 * The callers are required to call dev_pm_opp_put() for the returned OPP after
818 return ERR_PTR(-ENODEV); in dev_pm_opp_find_level_ceil()
827 * dev_pm_opp_find_level_floor() - Search for a rounded floor level
841 * The callers are required to call dev_pm_opp_put() for the returned OPP after
857 * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth
860 * @index: which bandwidth to compare, in case of OPPs with several values
872 * The callers are required to call dev_pm_opp_put() for the returned OPP after
888 * dev_pm_opp_find_bw_floor() - Search for a rounded floor bandwidth
891 * @index: which bandwidth to compare, in case of OPPs with several values
903 * The callers are required to call dev_pm_opp_put() for the returned OPP after
931 supply->u_volt_min, supply->u_volt, supply->u_volt_max); in _set_opp_voltage()
933 ret = regulator_set_voltage_triplet(reg, supply->u_volt_min, in _set_opp_voltage()
934 supply->u_volt, supply->u_volt_max); in _set_opp_voltage()
937 __func__, supply->u_volt_min, supply->u_volt, in _set_opp_voltage()
938 supply->u_volt_max, ret); in _set_opp_voltage()
955 freq = opp->rates[0]; in _opp_config_clk_single()
958 return -EINVAL; in _opp_config_clk_single()
961 ret = clk_set_rate(opp_table->clk, freq); in _opp_config_clk_single()
966 opp_table->current_rate_single_clk = freq; in _opp_config_clk_single()
983 for (i = opp_table->clk_count - 1; i >= 0; i--) { in dev_pm_opp_config_clks_simple()
984 ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); in dev_pm_opp_config_clks_simple()
992 for (i = 0; i < opp_table->clk_count; i++) { in dev_pm_opp_config_clks_simple()
993 ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); in dev_pm_opp_config_clks_simple()
1016 return -EINVAL; in _opp_config_regulator_single()
1019 ret = _set_opp_voltage(dev, reg, new_opp->supplies); in _opp_config_regulator_single()
1025 * some boot-enabled regulators. in _opp_config_regulator_single()
1027 if (unlikely(!new_opp->opp_table->enabled)) { in _opp_config_regulator_single()
1042 if (!opp_table->paths) in _set_opp_bw()
1045 for (i = 0; i < opp_table->path_count; i++) { in _set_opp_bw()
1050 avg = opp->bandwidth[i].avg; in _set_opp_bw()
1051 peak = opp->bandwidth[i].peak; in _set_opp_bw()
1053 ret = icc_set_bw(opp_table->paths[i], avg, peak); in _set_opp_bw()
1070 if (opp->level == OPP_LEVEL_UNSET) in _set_opp_level()
1073 level = opp->level; in _set_opp_level()
1089 struct device **devs = opp_table->required_devs; in _set_required_opps()
1096 /* required-opps not fully initialized yet */ in _set_required_opps()
1098 return -EBUSY; in _set_required_opps()
1100 /* Scaling up? Set required OPPs in normal order, else reverse */ in _set_required_opps()
1103 target = opp_table->required_opp_count; in _set_required_opps()
1106 index = opp_table->required_opp_count - 1; in _set_required_opps()
1107 target = -1; in _set_required_opps()
1108 delta = -1; in _set_required_opps()
1113 required_opp = opp ? opp->required_opps[index] : NULL; in _set_required_opps()
1128 struct dev_pm_opp *opp = ERR_PTR(-ENODEV); in _find_current_opp()
1131 if (!IS_ERR(opp_table->clk)) { in _find_current_opp()
1132 freq = clk_get_rate(opp_table->clk); in _find_current_opp()
1142 mutex_lock(&opp_table->lock); in _find_current_opp()
1143 opp = list_first_entry(&opp_table->opp_list, struct dev_pm_opp, node); in _find_current_opp()
1145 mutex_unlock(&opp_table->lock); in _find_current_opp()
1148 opp_table->current_opp = opp; in _find_current_opp()
1155 if (!opp_table->enabled) in _disable_opp_table()
1170 if (opp_table->regulators) in _disable_opp_table()
1171 regulator_disable(opp_table->regulators[0]); in _disable_opp_table()
1180 opp_table->enabled = false; in _disable_opp_table()
1194 if (unlikely(!opp_table->current_opp)) in _set_opp()
1197 old_opp = opp_table->current_opp; in _set_opp()
1200 if (!forced && old_opp == opp && opp_table->enabled) { in _set_opp()
1201 dev_dbg_ratelimited(dev, "%s: OPPs are same, nothing to do\n", __func__); in _set_opp()
1205 dev_dbg(dev, "%s: switching OPP: Freq %lu -> %lu Hz, Level %u -> %u, Bw %u -> %u\n", in _set_opp()
1206 __func__, old_opp->rates[0], opp->rates[0], old_opp->level, in _set_opp()
1207 opp->level, old_opp->bandwidth ? old_opp->bandwidth[0].peak : 0, in _set_opp()
1208 opp->bandwidth ? opp->bandwidth[0].peak : 0); in _set_opp()
1211 if (scaling_down == -1) in _set_opp()
1214 /* Scaling up? Configure required OPPs before frequency */ in _set_opp()
1218 dev_err(dev, "Failed to set required opps: %d\n", ret); in _set_opp()
1232 if (opp_table->config_regulators) { in _set_opp()
1233 ret = opp_table->config_regulators(dev, old_opp, opp, in _set_opp()
1234 opp_table->regulators, in _set_opp()
1235 opp_table->regulator_count); in _set_opp()
1244 if (opp_table->config_clks) { in _set_opp()
1245 ret = opp_table->config_clks(dev, opp_table, opp, clk_data, scaling_down); in _set_opp()
1250 /* Scaling down? Configure required OPPs after frequency */ in _set_opp()
1252 if (opp_table->config_regulators) { in _set_opp()
1253 ret = opp_table->config_regulators(dev, old_opp, opp, in _set_opp()
1254 opp_table->regulators, in _set_opp()
1255 opp_table->regulator_count); in _set_opp()
1275 dev_err(dev, "Failed to set required opps: %d\n", ret); in _set_opp()
1280 opp_table->enabled = true; in _set_opp()
1285 opp_table->current_opp = opp; in _set_opp()
1291 * dev_pm_opp_set_rate() - Configure new OPP based on frequency
1295 * This configures the power-supplies to the levels specified by the OPP
1324 ret = opp_table->config_clks(dev, opp_table, NULL, in dev_pm_opp_set_rate()
1329 freq = clk_round_rate(opp_table->clk, target_freq); in dev_pm_opp_set_rate()
1354 forced = opp_table->current_rate_single_clk != freq; in dev_pm_opp_set_rate()
1369 * dev_pm_opp_set_opp() - Configure device for OPP
1396 /* OPP-dev Helpers */
1401 list_del(&opp_dev->node); in _remove_opp_dev()
1414 /* Initialize opp-dev */ in _add_opp_dev()
1415 opp_dev->dev = dev; in _add_opp_dev()
1417 mutex_lock(&opp_table->lock); in _add_opp_dev()
1418 list_add(&opp_dev->node, &opp_table->dev_list); in _add_opp_dev()
1419 mutex_unlock(&opp_table->lock); in _add_opp_dev()
1439 return ERR_PTR(-ENOMEM); in _allocate_opp_table()
1441 mutex_init(&opp_table->lock); in _allocate_opp_table()
1442 INIT_LIST_HEAD(&opp_table->dev_list); in _allocate_opp_table()
1443 INIT_LIST_HEAD(&opp_table->lazy); in _allocate_opp_table()
1445 opp_table->clk = ERR_PTR(-ENODEV); in _allocate_opp_table()
1448 opp_table->regulator_count = -1; in _allocate_opp_table()
1452 ret = -ENOMEM; in _allocate_opp_table()
1461 if (ret == -EPROBE_DEFER) in _allocate_opp_table()
1468 BLOCKING_INIT_NOTIFIER_HEAD(&opp_table->head); in _allocate_opp_table()
1469 INIT_LIST_HEAD(&opp_table->opp_list); in _allocate_opp_table()
1470 kref_init(&opp_table->kref); in _allocate_opp_table()
1477 mutex_destroy(&opp_table->lock); in _allocate_opp_table()
1485 kref_get(&opp_table->kref); in _get_opp_table_kref()
1498 if (!getclk || IS_ERR(opp_table) || !IS_ERR(opp_table->clk) || in _update_opp_table_clk()
1499 opp_table->clks) in _update_opp_table_clk()
1503 opp_table->clk = clk_get(dev, NULL); in _update_opp_table_clk()
1505 ret = PTR_ERR_OR_ZERO(opp_table->clk); in _update_opp_table_clk()
1507 opp_table->config_clks = _opp_config_clk_single; in _update_opp_table_clk()
1508 opp_table->clk_count = 1; in _update_opp_table_clk()
1512 if (ret == -ENOENT) { in _update_opp_table_clk()
1518 * contain "opp-hz" property though, which we need to parse and in _update_opp_table_clk()
1523 * frequency in opp->rates and also parse the entries in DT. in _update_opp_table_clk()
1525 opp_table->clk_count = 1; in _update_opp_table_clk()
1583 opp_table = ERR_PTR(-ENOMEM); in _add_opp_table_indexed()
1592 list_add(&opp_table->node, &opp_tables); in _add_opp_table_indexed()
1621 list_del(&opp_table->node); in _opp_table_kref_release()
1624 if (opp_table->current_opp) in _opp_table_kref_release()
1625 dev_pm_opp_put(opp_table->current_opp); in _opp_table_kref_release()
1630 if (!IS_ERR(opp_table->clk)) in _opp_table_kref_release()
1631 clk_put(opp_table->clk); in _opp_table_kref_release()
1633 if (opp_table->paths) { in _opp_table_kref_release()
1634 for (i = 0; i < opp_table->path_count; i++) in _opp_table_kref_release()
1635 icc_put(opp_table->paths[i]); in _opp_table_kref_release()
1636 kfree(opp_table->paths); in _opp_table_kref_release()
1639 WARN_ON(!list_empty(&opp_table->opp_list)); in _opp_table_kref_release()
1641 list_for_each_entry_safe(opp_dev, temp, &opp_table->dev_list, node) in _opp_table_kref_release()
1644 mutex_destroy(&opp_table->lock); in _opp_table_kref_release()
1650 kref_put_mutex(&opp_table->kref, _opp_table_kref_release, in dev_pm_opp_put_opp_table()
1663 struct opp_table *opp_table = opp->opp_table; in _opp_kref_release()
1665 list_del(&opp->node); in _opp_kref_release()
1666 mutex_unlock(&opp_table->lock); in _opp_kref_release()
1672 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_REMOVE, opp); in _opp_kref_release()
1680 kref_get(&opp->kref); in dev_pm_opp_get()
1685 kref_put_mutex(&opp->kref, _opp_kref_release, &opp->opp_table->lock); in dev_pm_opp_put()
1690 * dev_pm_opp_remove() - Remove an OPP from OPP table
1708 mutex_lock(&opp_table->lock); in dev_pm_opp_remove()
1710 list_for_each_entry(iter, &opp_table->opp_list, node) { in dev_pm_opp_remove()
1711 if (iter->rates[0] == freq) { in dev_pm_opp_remove()
1717 mutex_unlock(&opp_table->lock); in dev_pm_opp_remove()
1740 mutex_lock(&opp_table->lock); in _opp_get_next()
1741 list_for_each_entry(temp, &opp_table->opp_list, node) { in _opp_get_next()
1746 if (!temp->removed && dynamic == temp->dynamic) { in _opp_get_next()
1752 mutex_unlock(&opp_table->lock); in _opp_get_next()
1759 * called without the opp_table->lock held.
1766 opp->removed = true; in _opp_remove_all()
1777 mutex_lock(&opp_table->lock); in _opp_remove_all_static()
1779 if (!opp_table->parsed_static_opps) { in _opp_remove_all_static()
1780 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1784 if (--opp_table->parsed_static_opps) { in _opp_remove_all_static()
1785 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1789 mutex_unlock(&opp_table->lock); in _opp_remove_all_static()
1796 * dev_pm_opp_remove_all_dynamic() - Remove all dynamically created OPPs
1799 * This function removes all dynamically created OPPs from the opp table.
1822 supply_count = opp_table->regulator_count > 0 ? in _opp_allocate()
1823 opp_table->regulator_count : 1; in _opp_allocate()
1824 supply_size = sizeof(*opp->supplies) * supply_count; in _opp_allocate()
1825 clk_size = sizeof(*opp->rates) * opp_table->clk_count; in _opp_allocate()
1826 icc_size = sizeof(*opp->bandwidth) * opp_table->path_count; in _opp_allocate()
1834 opp->supplies = (struct dev_pm_opp_supply *)(opp + 1); in _opp_allocate()
1836 opp->rates = (unsigned long *)(opp->supplies + supply_count); in _opp_allocate()
1839 opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->rates + opp_table->clk_count); in _opp_allocate()
1841 INIT_LIST_HEAD(&opp->node); in _opp_allocate()
1843 opp->level = OPP_LEVEL_UNSET; in _opp_allocate()
1854 if (!opp_table->regulators) in _opp_supported_by_regulators()
1857 for (i = 0; i < opp_table->regulator_count; i++) { in _opp_supported_by_regulators()
1858 reg = opp_table->regulators[i]; in _opp_supported_by_regulators()
1861 opp->supplies[i].u_volt_min, in _opp_supported_by_regulators()
1862 opp->supplies[i].u_volt_max)) { in _opp_supported_by_regulators()
1864 __func__, opp->supplies[i].u_volt_min, in _opp_supported_by_regulators()
1865 opp->supplies[i].u_volt_max); in _opp_supported_by_regulators()
1878 for (i = 0; i < opp_table->clk_count; i++) { in _opp_compare_rate()
1879 if (opp1->rates[i] != opp2->rates[i]) in _opp_compare_rate()
1880 return opp1->rates[i] < opp2->rates[i] ? -1 : 1; in _opp_compare_rate()
1883 /* Same rates for both OPPs */ in _opp_compare_rate()
1892 for (i = 0; i < opp_table->path_count; i++) { in _opp_compare_bw()
1893 if (opp1->bandwidth[i].peak != opp2->bandwidth[i].peak) in _opp_compare_bw()
1894 return opp1->bandwidth[i].peak < opp2->bandwidth[i].peak ? -1 : 1; in _opp_compare_bw()
1897 /* Same bw for both OPPs */ in _opp_compare_bw()
1905 * -1: opp1 < opp2
1920 if (opp1->level != opp2->level) in _opp_compare_key()
1921 return opp1->level < opp2->level ? -1 : 1; in _opp_compare_key()
1923 /* Duplicate OPPs */ in _opp_compare_key()
1938 * Need to use &opp_table->opp_list in the condition part of the 'for' in _opp_is_duplicate()
1942 list_for_each_entry(opp, &opp_table->opp_list, node) { in _opp_is_duplicate()
1945 *head = &opp->node; in _opp_is_duplicate()
1952 /* Duplicate OPPs */ in _opp_is_duplicate()
1953 …dev_warn(dev, "%s: duplicate OPPs detected. Existing: freq: %lu, volt: %lu, enabled: %d. New: freq… in _opp_is_duplicate()
1954 __func__, opp->rates[0], opp->supplies[0].u_volt, in _opp_is_duplicate()
1955 opp->available, new_opp->rates[0], in _opp_is_duplicate()
1956 new_opp->supplies[0].u_volt, new_opp->available); in _opp_is_duplicate()
1959 return opp->available && in _opp_is_duplicate()
1960 new_opp->supplies[0].u_volt == opp->supplies[0].u_volt ? -EBUSY : -EEXIST; in _opp_is_duplicate()
1971 if (opp->required_opps[i]->available) in _required_opps_available()
1974 opp->available = false; in _required_opps_available()
1975 pr_warn("%s: OPP not supported by required OPP %pOF (%lu)\n", in _required_opps_available()
1976 __func__, opp->required_opps[i]->np, opp->rates[0]); in _required_opps_available()
1983 * 0: On success. And appropriate error message for duplicate OPPs.
1984 * -EBUSY: For OPP with same freq/volt and is available. The callers of
1985 * _opp_add() must return 0 if they receive -EBUSY from it. This is to make
1988 * -EEXIST: For OPP with same freq but different volt or is unavailable. This
1997 mutex_lock(&opp_table->lock); in _opp_add()
1998 head = &opp_table->opp_list; in _opp_add()
2002 mutex_unlock(&opp_table->lock); in _opp_add()
2006 list_add(&new_opp->node, head); in _opp_add()
2007 mutex_unlock(&opp_table->lock); in _opp_add()
2009 new_opp->opp_table = opp_table; in _opp_add()
2010 kref_init(&new_opp->kref); in _opp_add()
2015 new_opp->available = false; in _opp_add()
2017 __func__, new_opp->rates[0]); in _opp_add()
2020 /* required-opps not fully initialized yet */ in _opp_add()
2024 _required_opps_available(new_opp, opp_table->required_opp_count); in _opp_add()
2030 * _opp_add_v1() - Allocate a OPP based on v1 bindings.
2034 * @dynamic: Dynamically added OPPs.
2040 * NOTE: "dynamic" parameter impacts OPPs added by the dev_pm_opp_of_add_table
2045 * Duplicate OPPs (both freq and volt are same) and opp->available
2046 * -EEXIST Freq are same and volt are different OR
2047 * Duplicate OPPs (both freq and volt are same) and !opp->available
2048 * -ENOMEM Memory allocation failure
2054 unsigned long tol, u_volt = data->u_volt; in _opp_add_v1()
2058 return -EINVAL; in _opp_add_v1()
2062 return -ENOMEM; in _opp_add_v1()
2065 new_opp->rates[0] = data->freq; in _opp_add_v1()
2066 new_opp->level = data->level; in _opp_add_v1()
2067 new_opp->turbo = data->turbo; in _opp_add_v1()
2068 tol = u_volt * opp_table->voltage_tolerance_v1 / 100; in _opp_add_v1()
2069 new_opp->supplies[0].u_volt = u_volt; in _opp_add_v1()
2070 new_opp->supplies[0].u_volt_min = u_volt - tol; in _opp_add_v1()
2071 new_opp->supplies[0].u_volt_max = u_volt + tol; in _opp_add_v1()
2072 new_opp->available = true; in _opp_add_v1()
2073 new_opp->dynamic = dynamic; in _opp_add_v1()
2077 /* Don't return error for duplicate OPPs */ in _opp_add_v1()
2078 if (ret == -EBUSY) in _opp_add_v1()
2087 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADD, new_opp); in _opp_add_v1()
2097 * This is required only for the V2 bindings, and it enables a platform to
2099 * OPPs, which are available for those versions, based on its 'opp-supported-hw'
2106 if (opp_table->supported_hw) in _opp_set_supported_hw()
2109 opp_table->supported_hw = kmemdup(versions, count * sizeof(*versions), in _opp_set_supported_hw()
2111 if (!opp_table->supported_hw) in _opp_set_supported_hw()
2112 return -ENOMEM; in _opp_set_supported_hw()
2114 opp_table->supported_hw_count = count; in _opp_set_supported_hw()
2121 if (opp_table->supported_hw) { in _opp_put_supported_hw()
2122 kfree(opp_table->supported_hw); in _opp_put_supported_hw()
2123 opp_table->supported_hw = NULL; in _opp_put_supported_hw()
2124 opp_table->supported_hw_count = 0; in _opp_put_supported_hw()
2129 * This is required only for the V2 bindings, and it enables a platform to
2131 * which the extension will apply are opp-microvolt and opp-microamp. OPP core
2132 * should postfix the property name with -<name> while looking for them.
2137 if (!opp_table->prop_name) { in _opp_set_prop_name()
2138 opp_table->prop_name = kstrdup(name, GFP_KERNEL); in _opp_set_prop_name()
2139 if (!opp_table->prop_name) in _opp_set_prop_name()
2140 return -ENOMEM; in _opp_set_prop_name()
2148 if (opp_table->prop_name) { in _opp_put_prop_name()
2149 kfree(opp_table->prop_name); in _opp_put_prop_name()
2150 opp_table->prop_name = NULL; in _opp_put_prop_name()
2156 * device's regulators, as the core would be required to switch voltages as
2159 * This must be called before any OPPs are initialized for the device.
2173 return -EINVAL; in _opp_set_regulators()
2176 if (opp_table->regulators) in _opp_set_regulators()
2179 opp_table->regulators = kmalloc_array(count, in _opp_set_regulators()
2180 sizeof(*opp_table->regulators), in _opp_set_regulators()
2182 if (!opp_table->regulators) in _opp_set_regulators()
2183 return -ENOMEM; in _opp_set_regulators()
2194 opp_table->regulators[i] = reg; in _opp_set_regulators()
2197 opp_table->regulator_count = count; in _opp_set_regulators()
2201 opp_table->config_regulators = _opp_config_regulator_single; in _opp_set_regulators()
2207 regulator_put(opp_table->regulators[--i]); in _opp_set_regulators()
2209 kfree(opp_table->regulators); in _opp_set_regulators()
2210 opp_table->regulators = NULL; in _opp_set_regulators()
2211 opp_table->regulator_count = -1; in _opp_set_regulators()
2220 if (!opp_table->regulators) in _opp_put_regulators()
2223 if (opp_table->enabled) { in _opp_put_regulators()
2224 for (i = opp_table->regulator_count - 1; i >= 0; i--) in _opp_put_regulators()
2225 regulator_disable(opp_table->regulators[i]); in _opp_put_regulators()
2228 for (i = opp_table->regulator_count - 1; i >= 0; i--) in _opp_put_regulators()
2229 regulator_put(opp_table->regulators[i]); in _opp_put_regulators()
2231 kfree(opp_table->regulators); in _opp_put_regulators()
2232 opp_table->regulators = NULL; in _opp_put_regulators()
2233 opp_table->regulator_count = -1; in _opp_put_regulators()
2240 for (i = count - 1; i >= 0; i--) in _put_clks()
2241 clk_put(opp_table->clks[i]); in _put_clks()
2243 kfree(opp_table->clks); in _put_clks()
2244 opp_table->clks = NULL; in _put_clks()
2250 * (i.e. by passing connection-id as NULL), but for a device with multiple
2254 * This must be called before any OPPs are initialized for the device.
2277 return -EINVAL; in _opp_set_clknames()
2280 if (opp_table->clks) in _opp_set_clknames()
2283 opp_table->clks = kmalloc_array(count, sizeof(*opp_table->clks), in _opp_set_clknames()
2285 if (!opp_table->clks) in _opp_set_clknames()
2286 return -ENOMEM; in _opp_set_clknames()
2298 opp_table->clks[i] = clk; in _opp_set_clknames()
2301 opp_table->clk_count = count; in _opp_set_clknames()
2302 opp_table->config_clks = config_clks; in _opp_set_clknames()
2306 if (!opp_table->config_clks) in _opp_set_clknames()
2307 opp_table->config_clks = _opp_config_clk_single; in _opp_set_clknames()
2314 * - avoiding clks[0] everywhere else. in _opp_set_clknames()
2315 * - not running single clk helpers for multiple clk usecase by in _opp_set_clknames()
2318 * Since this is single-clk case, just update the clk pointer in _opp_set_clknames()
2321 opp_table->clk = opp_table->clks[0]; in _opp_set_clknames()
2333 if (!opp_table->clks) in _opp_put_clknames()
2336 opp_table->config_clks = NULL; in _opp_put_clknames()
2337 opp_table->clk = ERR_PTR(-ENODEV); in _opp_put_clknames()
2339 _put_clks(opp_table, opp_table->clk_count); in _opp_put_clknames()
2345 * This must be called before any OPPs are initialized for the device.
2351 if (!opp_table->config_regulators) in _opp_set_config_regulators_helper()
2352 opp_table->config_regulators = config_regulators; in _opp_set_config_regulators_helper()
2359 if (opp_table->config_regulators) in _opp_put_config_regulators_helper()
2360 opp_table->config_regulators = NULL; in _opp_put_config_regulators_helper()
2367 for (index = 0; index < opp_table->required_opp_count; index++) { in _opp_detach_genpd()
2368 if (!opp_table->required_devs[index]) in _opp_detach_genpd()
2371 dev_pm_domain_detach(opp_table->required_devs[index], false); in _opp_detach_genpd()
2372 opp_table->required_devs[index] = NULL; in _opp_detach_genpd()
2378 * virtual genpd devices, which are created for each consumer device - genpd
2380 * and are required by the OPP core to set the performance state of the genpd.
2391 * "required-opps" are added in DT.
2398 int index = 0, ret = -EINVAL; in _opp_attach_genpd()
2401 if (!opp_table->required_devs) { in _opp_attach_genpd()
2402 dev_err(dev, "Required OPPs not available, can't attach genpd\n"); in _opp_attach_genpd()
2403 return -EINVAL; in _opp_attach_genpd()
2407 if (opp_table->is_genpd) { in _opp_attach_genpd()
2409 return -EOPNOTSUPP; in _opp_attach_genpd()
2413 if (opp_table->required_devs[0]) in _opp_attach_genpd()
2417 if (index >= opp_table->required_opp_count) { in _opp_attach_genpd()
2418 dev_err(dev, "Index can't be greater than required-opp-count - 1, %s (%d : %d)\n", in _opp_attach_genpd()
2419 *name, opp_table->required_opp_count, index); in _opp_attach_genpd()
2425 ret = virt_dev ? PTR_ERR(virt_dev) : -ENODEV; in _opp_attach_genpd()
2442 * Cross check it again and fix if required. in _opp_attach_genpd()
2452 if (genpd_table != opp_table->required_opp_tables[index]) { in _opp_attach_genpd()
2453 dev_pm_opp_put_opp_table(opp_table->required_opp_tables[index]); in _opp_attach_genpd()
2454 opp_table->required_opp_tables[index] = genpd_table; in _opp_attach_genpd()
2460 opp_table->required_devs[index] = virt_dev; in _opp_attach_genpd()
2466 *virt_devs = opp_table->required_devs; in _opp_attach_genpd()
2482 if (!opp_table->required_devs) { in _opp_set_required_devs()
2483 dev_err(dev, "Required OPPs not available, can't set required devs\n"); in _opp_set_required_devs()
2484 return -EINVAL; in _opp_set_required_devs()
2487 /* Another device that shares the OPP table has set the required devs ? */ in _opp_set_required_devs()
2488 if (opp_table->required_devs[0]) in _opp_set_required_devs()
2491 for (i = 0; i < opp_table->required_opp_count; i++) { in _opp_set_required_devs()
2493 if (required_devs[i] && opp_table->is_genpd && in _opp_set_required_devs()
2494 opp_table->required_opp_tables[i]->is_genpd) { in _opp_set_required_devs()
2496 return -EOPNOTSUPP; in _opp_set_required_devs()
2499 opp_table->required_devs[i] = required_devs[i]; in _opp_set_required_devs()
2509 for (i = 0; i < opp_table->required_opp_count; i++) in _opp_put_required_devs()
2510 opp_table->required_devs[i] = NULL; in _opp_put_required_devs()
2515 if (data->flags & OPP_CONFIG_REQUIRED_DEVS) in _opp_clear_config()
2516 _opp_put_required_devs(data->opp_table); in _opp_clear_config()
2517 else if (data->flags & OPP_CONFIG_GENPD) in _opp_clear_config()
2518 _opp_detach_genpd(data->opp_table); in _opp_clear_config()
2520 if (data->flags & OPP_CONFIG_REGULATOR) in _opp_clear_config()
2521 _opp_put_regulators(data->opp_table); in _opp_clear_config()
2522 if (data->flags & OPP_CONFIG_SUPPORTED_HW) in _opp_clear_config()
2523 _opp_put_supported_hw(data->opp_table); in _opp_clear_config()
2524 if (data->flags & OPP_CONFIG_REGULATOR_HELPER) in _opp_clear_config()
2525 _opp_put_config_regulators_helper(data->opp_table); in _opp_clear_config()
2526 if (data->flags & OPP_CONFIG_PROP_NAME) in _opp_clear_config()
2527 _opp_put_prop_name(data->opp_table); in _opp_clear_config()
2528 if (data->flags & OPP_CONFIG_CLK) in _opp_clear_config()
2529 _opp_put_clknames(data->opp_table); in _opp_clear_config()
2531 dev_pm_opp_put_opp_table(data->opp_table); in _opp_clear_config()
2536 * dev_pm_opp_set_config() - Set OPP configuration for the device.
2542 * This must be called before any OPPs are initialized for the device. This may
2561 return -ENOMEM; in dev_pm_opp_set_config()
2569 data->opp_table = opp_table; in dev_pm_opp_set_config()
2570 data->flags = 0; in dev_pm_opp_set_config()
2572 /* This should be called before OPPs are initialized */ in dev_pm_opp_set_config()
2573 if (WARN_ON(!list_empty(&opp_table->opp_list))) { in dev_pm_opp_set_config()
2574 ret = -EBUSY; in dev_pm_opp_set_config()
2579 if (config->clk_names) { in dev_pm_opp_set_config()
2580 ret = _opp_set_clknames(opp_table, dev, config->clk_names, in dev_pm_opp_set_config()
2581 config->config_clks); in dev_pm_opp_set_config()
2585 data->flags |= OPP_CONFIG_CLK; in dev_pm_opp_set_config()
2586 } else if (config->config_clks) { in dev_pm_opp_set_config()
2588 ret = -EINVAL; in dev_pm_opp_set_config()
2593 if (config->prop_name) { in dev_pm_opp_set_config()
2594 ret = _opp_set_prop_name(opp_table, config->prop_name); in dev_pm_opp_set_config()
2598 data->flags |= OPP_CONFIG_PROP_NAME; in dev_pm_opp_set_config()
2602 if (config->config_regulators) { in dev_pm_opp_set_config()
2604 config->config_regulators); in dev_pm_opp_set_config()
2608 data->flags |= OPP_CONFIG_REGULATOR_HELPER; in dev_pm_opp_set_config()
2612 if (config->supported_hw) { in dev_pm_opp_set_config()
2613 ret = _opp_set_supported_hw(opp_table, config->supported_hw, in dev_pm_opp_set_config()
2614 config->supported_hw_count); in dev_pm_opp_set_config()
2618 data->flags |= OPP_CONFIG_SUPPORTED_HW; in dev_pm_opp_set_config()
2622 if (config->regulator_names) { in dev_pm_opp_set_config()
2624 config->regulator_names); in dev_pm_opp_set_config()
2628 data->flags |= OPP_CONFIG_REGULATOR; in dev_pm_opp_set_config()
2632 if (config->genpd_names) { in dev_pm_opp_set_config()
2633 if (config->required_devs) { in dev_pm_opp_set_config()
2634 ret = -EINVAL; in dev_pm_opp_set_config()
2638 ret = _opp_attach_genpd(opp_table, dev, config->genpd_names, in dev_pm_opp_set_config()
2639 config->virt_devs); in dev_pm_opp_set_config()
2643 data->flags |= OPP_CONFIG_GENPD; in dev_pm_opp_set_config()
2644 } else if (config->required_devs) { in dev_pm_opp_set_config()
2646 config->required_devs); in dev_pm_opp_set_config()
2650 data->flags |= OPP_CONFIG_REQUIRED_DEVS; in dev_pm_opp_set_config()
2667 * dev_pm_opp_clear_config() - Releases resources blocked for OPP configuration.
2672 * the OPPs properly.
2704 * devm_pm_opp_set_config() - Set OPP configuration for the device.
2709 * This is a resource-managed variant of dev_pm_opp_set_config().
2726 * dev_pm_opp_xlate_required_opp() - Find required OPP for @src_table OPP.
2727 * @src_table: OPP table which has @dst_table as one of its required OPP table.
2728 * @dst_table: Required OPP table of the @src_table.
2732 * "required-opps" property of the @src_opp (present in @src_table).
2734 * The callers are required to call dev_pm_opp_put() for the returned OPP after
2743 struct dev_pm_opp *opp, *dest_opp = ERR_PTR(-ENODEV); in dev_pm_opp_xlate_required_opp()
2747 !src_table->required_opp_tables) in dev_pm_opp_xlate_required_opp()
2748 return ERR_PTR(-EINVAL); in dev_pm_opp_xlate_required_opp()
2750 /* required-opps not fully initialized yet */ in dev_pm_opp_xlate_required_opp()
2752 return ERR_PTR(-EBUSY); in dev_pm_opp_xlate_required_opp()
2754 for (i = 0; i < src_table->required_opp_count; i++) { in dev_pm_opp_xlate_required_opp()
2755 if (src_table->required_opp_tables[i] == dst_table) { in dev_pm_opp_xlate_required_opp()
2756 mutex_lock(&src_table->lock); in dev_pm_opp_xlate_required_opp()
2758 list_for_each_entry(opp, &src_table->opp_list, node) { in dev_pm_opp_xlate_required_opp()
2760 dest_opp = opp->required_opps[i]; in dev_pm_opp_xlate_required_opp()
2766 mutex_unlock(&src_table->lock); in dev_pm_opp_xlate_required_opp()
2781 * dev_pm_opp_xlate_performance_state() - Find required OPP's pstate for src_table.
2782 * @src_table: OPP table which has dst_table as one of its required OPP table.
2783 * @dst_table: Required OPP table of the src_table.
2787 * "required-opps" property of the OPP (present in @src_table) which has
2798 int dest_pstate = -EINVAL; in dev_pm_opp_xlate_performance_state()
2803 * point to one of the OPPs in the dst_table, but in some cases the in dev_pm_opp_xlate_performance_state()
2805 * and so none of them have the "required-opps" property set. Return the in dev_pm_opp_xlate_performance_state()
2808 if (!src_table || !src_table->required_opp_count) in dev_pm_opp_xlate_performance_state()
2812 if (unlikely(!src_table->is_genpd || !dst_table->is_genpd)) { in dev_pm_opp_xlate_performance_state()
2814 return -EINVAL; in dev_pm_opp_xlate_performance_state()
2817 /* required-opps not fully initialized yet */ in dev_pm_opp_xlate_performance_state()
2819 return -EBUSY; in dev_pm_opp_xlate_performance_state()
2821 for (i = 0; i < src_table->required_opp_count; i++) { in dev_pm_opp_xlate_performance_state()
2822 if (src_table->required_opp_tables[i]->np == dst_table->np) in dev_pm_opp_xlate_performance_state()
2826 if (unlikely(i == src_table->required_opp_count)) { in dev_pm_opp_xlate_performance_state()
2829 return -EINVAL; in dev_pm_opp_xlate_performance_state()
2832 mutex_lock(&src_table->lock); in dev_pm_opp_xlate_performance_state()
2834 list_for_each_entry(opp, &src_table->opp_list, node) { in dev_pm_opp_xlate_performance_state()
2835 if (opp->level == pstate) { in dev_pm_opp_xlate_performance_state()
2836 dest_pstate = opp->required_opps[i]->level; in dev_pm_opp_xlate_performance_state()
2845 mutex_unlock(&src_table->lock); in dev_pm_opp_xlate_performance_state()
2851 * dev_pm_opp_add_dynamic() - Add an OPP table from a table definitions
2861 * Duplicate OPPs (both freq and volt are same) and opp->available
2862 * -EEXIST Freq are same and volt are different OR
2863 * Duplicate OPPs (both freq and volt are same) and !opp->available
2864 * -ENOMEM Memory allocation failure
2875 /* Fix regulator count for dynamic OPPs */ in dev_pm_opp_add_dynamic()
2876 opp_table->regulator_count = 1; in dev_pm_opp_add_dynamic()
2887 * _opp_set_availability() - helper to set the availability of an opp
2895 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2903 struct dev_pm_opp *tmp_opp, *opp = ERR_PTR(-ENODEV); in _opp_set_availability()
2915 r = -EINVAL; in _opp_set_availability()
2919 mutex_lock(&opp_table->lock); in _opp_set_availability()
2922 list_for_each_entry(tmp_opp, &opp_table->opp_list, node) { in _opp_set_availability()
2923 if (tmp_opp->rates[0] == freq) { in _opp_set_availability()
2935 if (opp->available == availability_req) in _opp_set_availability()
2938 opp->available = availability_req; in _opp_set_availability()
2941 mutex_unlock(&opp_table->lock); in _opp_set_availability()
2945 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE, in _opp_set_availability()
2948 blocking_notifier_call_chain(&opp_table->head, in _opp_set_availability()
2955 mutex_unlock(&opp_table->lock); in _opp_set_availability()
2962 * dev_pm_opp_adjust_voltage() - helper to change the voltage of an OPP
2969 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
2979 struct dev_pm_opp *tmp_opp, *opp = ERR_PTR(-ENODEV); in dev_pm_opp_adjust_voltage()
2991 r = -EINVAL; in dev_pm_opp_adjust_voltage()
2995 mutex_lock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
2998 list_for_each_entry(tmp_opp, &opp_table->opp_list, node) { in dev_pm_opp_adjust_voltage()
2999 if (tmp_opp->rates[0] == freq) { in dev_pm_opp_adjust_voltage()
3011 if (opp->supplies->u_volt == u_volt) in dev_pm_opp_adjust_voltage()
3014 opp->supplies->u_volt = u_volt; in dev_pm_opp_adjust_voltage()
3015 opp->supplies->u_volt_min = u_volt_min; in dev_pm_opp_adjust_voltage()
3016 opp->supplies->u_volt_max = u_volt_max; in dev_pm_opp_adjust_voltage()
3019 mutex_unlock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
3022 blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ADJUST_VOLTAGE, in dev_pm_opp_adjust_voltage()
3029 mutex_unlock(&opp_table->lock); in dev_pm_opp_adjust_voltage()
3037 * dev_pm_opp_sync_regulators() - Sync state of voltage regulators
3055 /* Regulator may not be required for the device */ in dev_pm_opp_sync_regulators()
3056 if (unlikely(!opp_table->regulators)) in dev_pm_opp_sync_regulators()
3060 if (!opp_table->enabled) in dev_pm_opp_sync_regulators()
3063 for (i = 0; i < opp_table->regulator_count; i++) { in dev_pm_opp_sync_regulators()
3064 reg = opp_table->regulators[i]; in dev_pm_opp_sync_regulators()
3078 * dev_pm_opp_enable() - Enable a specific OPP
3086 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
3097 * dev_pm_opp_disable() - Disable a specific OPP
3106 * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the
3117 * dev_pm_opp_register_notifier() - Register OPP notifier for the device
3132 ret = blocking_notifier_chain_register(&opp_table->head, nb); in dev_pm_opp_register_notifier()
3141 * dev_pm_opp_unregister_notifier() - Unregister OPP notifier for the device
3157 ret = blocking_notifier_chain_unregister(&opp_table->head, nb); in dev_pm_opp_unregister_notifier()
3166 * dev_pm_opp_remove_table() - Free all OPPs associated with the device
3169 * Free both OPPs created using static entries present in DT and the
3181 if (error != -ENODEV) in dev_pm_opp_remove_table()