Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 2 | /* |
| 3 | * Generic OPP Interface |
| 4 | * |
| 5 | * Copyright (C) 2009-2010 Texas Instruments Incorporated. |
| 6 | * Nishanth Menon |
| 7 | * Romit Dasgupta |
| 8 | * Kevin Hilman |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #ifndef __DRIVER_OPP_H__ |
| 12 | #define __DRIVER_OPP_H__ |
| 13 | |
| 14 | #include <linux/device.h> |
Georgi Djakov | 6d3f922 | 2020-05-12 15:53:21 +0300 | [diff] [blame] | 15 | #include <linux/interconnect.h> |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 16 | #include <linux/kernel.h> |
Viresh Kumar | 7034764 | 2017-01-23 10:11:46 +0530 | [diff] [blame] | 17 | #include <linux/kref.h> |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 18 | #include <linux/list.h> |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 19 | #include <linux/limits.h> |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 20 | #include <linux/pm_opp.h> |
Viresh Kumar | 052c6f1 | 2017-01-23 10:11:49 +0530 | [diff] [blame] | 21 | #include <linux/notifier.h> |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 22 | |
Viresh Kumar | d54974c | 2016-02-09 10:30:38 +0530 | [diff] [blame] | 23 | struct clk; |
Viresh Kumar | 9f8ea96 | 2016-02-09 10:30:33 +0530 | [diff] [blame] | 24 | struct regulator; |
| 25 | |
Viresh Kumar | 87b4115 | 2015-11-05 14:21:19 +0530 | [diff] [blame] | 26 | /* Lock to allow exclusive modification to the device and opp lists */ |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 27 | extern struct mutex opp_table_lock; |
Viresh Kumar | 87b4115 | 2015-11-05 14:21:19 +0530 | [diff] [blame] | 28 | |
Viresh Kumar | 7eba0c7 | 2019-11-25 13:57:58 +0530 | [diff] [blame] | 29 | extern struct list_head opp_tables, lazy_opp_tables; |
Viresh Kumar | f47b72a | 2016-05-05 16:20:33 +0530 | [diff] [blame] | 30 | |
Viresh Kumar | 11b9b66 | 2022-05-25 15:23:16 +0530 | [diff] [blame] | 31 | /* OPP Config flags */ |
| 32 | #define OPP_CONFIG_CLK BIT(0) |
| 33 | #define OPP_CONFIG_REGULATOR BIT(1) |
| 34 | #define OPP_CONFIG_REGULATOR_HELPER BIT(2) |
| 35 | #define OPP_CONFIG_PROP_NAME BIT(3) |
| 36 | #define OPP_CONFIG_SUPPORTED_HW BIT(4) |
| 37 | #define OPP_CONFIG_GENPD BIT(5) |
| 38 | |
| 39 | /** |
| 40 | * struct opp_config_data - data for set config operations |
| 41 | * @opp_table: OPP table |
| 42 | * @flags: OPP config flags |
| 43 | * |
| 44 | * This structure stores the OPP config information for each OPP table |
| 45 | * configuration by the callers. |
| 46 | */ |
| 47 | struct opp_config_data { |
| 48 | struct opp_table *opp_table; |
| 49 | unsigned int flags; |
| 50 | }; |
| 51 | |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 52 | /* |
| 53 | * Internal data structure organization with the OPP layer library is as |
| 54 | * follows: |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 55 | * opp_tables (root) |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 56 | * |- device 1 (represents voltage domain 1) |
| 57 | * | |- opp 1 (availability, freq, voltage) |
| 58 | * | |- opp 2 .. |
| 59 | * ... ... |
| 60 | * | `- opp n .. |
| 61 | * |- device 2 (represents the next voltage domain) |
| 62 | * ... |
| 63 | * `- device m (represents mth voltage domain) |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 64 | * device 1, 2.. are represented by opp_table structure while each opp |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 65 | * is represented by the opp structure. |
| 66 | */ |
| 67 | |
| 68 | /** |
| 69 | * struct dev_pm_opp - Generic OPP description structure |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 70 | * @node: opp table node. The nodes are maintained throughout the lifetime |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 71 | * of boot. It is expected only an optimal set of OPPs are |
| 72 | * added to the library by the SoC framework. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 73 | * IMPORTANT: the opp nodes should be maintained in increasing |
| 74 | * order. |
Viresh Kumar | 7034764 | 2017-01-23 10:11:46 +0530 | [diff] [blame] | 75 | * @kref: for reference count of the OPP. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 76 | * @available: true/false - marks if this OPP as available or not |
Viresh Kumar | dc4e7b1 | 2015-11-19 09:13:56 +0530 | [diff] [blame] | 77 | * @dynamic: not-created from static DT entries. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 78 | * @turbo: true if turbo (boost) OPP |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 79 | * @suspend: true if suspend OPP |
Beata Michalska | 606a5d42 | 2021-03-04 15:07:34 +0000 | [diff] [blame] | 80 | * @removed: flag indicating that OPP's reference is dropped by OPP core. |
Viresh Kumar | 009acd1 | 2017-10-11 12:54:14 +0530 | [diff] [blame] | 81 | * @pstate: Device's power domain's performance state. |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 82 | * @rates: Frequencies in hertz |
Rajendra Nayak | 5b93ac5 | 2019-01-10 09:32:02 +0530 | [diff] [blame] | 83 | * @level: Performance level |
Viresh Kumar | dfbe467 | 2016-12-01 16:28:19 +0530 | [diff] [blame] | 84 | * @supplies: Power supplies voltage/current values |
Georgi Djakov | 6d3f922 | 2020-05-12 15:53:21 +0300 | [diff] [blame] | 85 | * @bandwidth: Interconnect bandwidth values |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 86 | * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's |
| 87 | * frequency from any other OPP's frequency. |
Viresh Kumar | da544b6 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 88 | * @required_opps: List of OPPs that are required by this OPP. |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 89 | * @opp_table: points back to the opp_table struct this opp belongs to |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 90 | * @np: OPP's device node. |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 91 | * @dentry: debugfs dentry pointer (per opp) |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 92 | * |
| 93 | * This structure stores the OPP information for a given device. |
| 94 | */ |
| 95 | struct dev_pm_opp { |
| 96 | struct list_head node; |
Viresh Kumar | 7034764 | 2017-01-23 10:11:46 +0530 | [diff] [blame] | 97 | struct kref kref; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 98 | |
| 99 | bool available; |
| 100 | bool dynamic; |
| 101 | bool turbo; |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 102 | bool suspend; |
Beata Michalska | 606a5d42 | 2021-03-04 15:07:34 +0000 | [diff] [blame] | 103 | bool removed; |
Viresh Kumar | 009acd1 | 2017-10-11 12:54:14 +0530 | [diff] [blame] | 104 | unsigned int pstate; |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 105 | unsigned long *rates; |
Rajendra Nayak | 5b93ac5 | 2019-01-10 09:32:02 +0530 | [diff] [blame] | 106 | unsigned int level; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 107 | |
Viresh Kumar | dfbe467 | 2016-12-01 16:28:19 +0530 | [diff] [blame] | 108 | struct dev_pm_opp_supply *supplies; |
Georgi Djakov | 6d3f922 | 2020-05-12 15:53:21 +0300 | [diff] [blame] | 109 | struct dev_pm_opp_icc_bw *bandwidth; |
Viresh Kumar | 0f0fe7e | 2016-12-01 16:28:17 +0530 | [diff] [blame] | 110 | |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 111 | unsigned long clock_latency_ns; |
| 112 | |
Viresh Kumar | da544b6 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 113 | struct dev_pm_opp **required_opps; |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 114 | struct opp_table *opp_table; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 115 | |
| 116 | struct device_node *np; |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 117 | |
| 118 | #ifdef CONFIG_DEBUG_FS |
| 119 | struct dentry *dentry; |
Viresh Kumar | 021dbec | 2022-02-10 14:37:53 +0530 | [diff] [blame] | 120 | const char *of_name; |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 121 | #endif |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 122 | }; |
| 123 | |
| 124 | /** |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 125 | * struct opp_device - devices managed by 'struct opp_table' |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 126 | * @node: list node |
| 127 | * @dev: device to which the struct object belongs |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 128 | * @dentry: debugfs dentry pointer (per device) |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 129 | * |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 130 | * This is an internal data structure maintaining the devices that are managed |
| 131 | * by 'struct opp_table'. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 132 | */ |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 133 | struct opp_device { |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 134 | struct list_head node; |
| 135 | const struct device *dev; |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 136 | |
| 137 | #ifdef CONFIG_DEBUG_FS |
| 138 | struct dentry *dentry; |
| 139 | #endif |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 140 | }; |
| 141 | |
Viresh Kumar | 79ee2e8 | 2016-06-16 19:03:11 +0530 | [diff] [blame] | 142 | enum opp_table_access { |
| 143 | OPP_TABLE_ACCESS_UNKNOWN = 0, |
| 144 | OPP_TABLE_ACCESS_EXCLUSIVE = 1, |
| 145 | OPP_TABLE_ACCESS_SHARED = 2, |
| 146 | }; |
| 147 | |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 148 | /** |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 149 | * struct opp_table - Device opp structure |
| 150 | * @node: table node - contains the devices with OPPs that |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 151 | * have been registered. Nodes once added are not modified in this |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 152 | * table. |
Viresh Kumar | 052c6f1 | 2017-01-23 10:11:49 +0530 | [diff] [blame] | 153 | * @head: notifier head to notify the OPP availability changes. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 154 | * @dev_list: list of devices that share these OPPs |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 155 | * @opp_list: table of opps |
Viresh Kumar | f067a98 | 2017-01-23 10:11:42 +0530 | [diff] [blame] | 156 | * @kref: for reference count of the table. |
Viresh Kumar | 3d25569 | 2018-08-03 07:05:21 +0530 | [diff] [blame] | 157 | * @lock: mutex protecting the opp_list and dev_list. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 158 | * @np: struct device_node pointer for opp's DT node. |
Viresh Kumar | dc4e7b1 | 2015-11-19 09:13:56 +0530 | [diff] [blame] | 159 | * @clock_latency_ns_max: Max clock latency in nanoseconds. |
Viresh Kumar | 03758d6 | 2019-11-11 16:35:03 +0530 | [diff] [blame] | 160 | * @parsed_static_opps: Count of devices for which OPPs are initialized from DT. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 161 | * @shared_opp: OPP is shared between multiple devices. |
Viresh Kumar | 1efae8d | 2022-06-03 15:01:30 +0530 | [diff] [blame] | 162 | * @rate_clk_single: Currently configured frequency for single clk. |
Viresh Kumar | 81c4d8a | 2021-01-20 16:16:48 +0530 | [diff] [blame] | 163 | * @current_opp: Currently configured OPP for the table. |
Viresh Kumar | dc4e7b1 | 2015-11-19 09:13:56 +0530 | [diff] [blame] | 164 | * @suspend_opp: Pointer to OPP to be used during device suspend. |
Viresh Kumar | 4f018bc | 2018-06-26 16:29:34 +0530 | [diff] [blame] | 165 | * @genpd_virt_dev_lock: Mutex protecting the genpd virtual device pointers. |
| 166 | * @genpd_virt_devs: List of virtual devices for multiple genpd support. |
Viresh Kumar | 5d6d106 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 167 | * @required_opp_tables: List of device OPP tables that are required by OPPs in |
| 168 | * this table. |
| 169 | * @required_opp_count: Number of required devices. |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 170 | * @supported_hw: Array of version number to support. |
| 171 | * @supported_hw_count: Number of elements in supported_hw array. |
Viresh Kumar | 01fb4d3 | 2015-12-09 08:01:47 +0530 | [diff] [blame] | 172 | * @prop_name: A name to postfix to many DT properties, while parsing them. |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 173 | * @config_clks: Platform specific config_clks() callback. |
| 174 | * @clks: Device's clock handles, for multiple clocks. |
| 175 | * @clk: Device's clock handle, for single clock. |
| 176 | * @clk_count: Number of clocks. |
Viresh Kumar | aee3352 | 2022-07-04 13:45:08 +0530 | [diff] [blame] | 177 | * @config_regulators: Platform specific config_regulators() callback. |
Viresh Kumar | dfbe467 | 2016-12-01 16:28:19 +0530 | [diff] [blame] | 178 | * @regulators: Supply regulators |
Viresh Kumar | 46f48ac | 2018-12-11 16:39:36 +0530 | [diff] [blame] | 179 | * @regulator_count: Number of power supply regulators. Its value can be -1 |
| 180 | * (uninitialized), 0 (no opp-microvolt property) or > 0 (has opp-microvolt |
| 181 | * property). |
Georgi Djakov | 6d3f922 | 2020-05-12 15:53:21 +0300 | [diff] [blame] | 182 | * @paths: Interconnect path handles |
| 183 | * @path_count: Number of interconnect paths |
Viresh Kumar | 72f80ce | 2020-08-13 08:38:37 +0530 | [diff] [blame] | 184 | * @enabled: Set to true if the device's resources are enabled/configured. |
Viresh Kumar | 009acd1 | 2017-10-11 12:54:14 +0530 | [diff] [blame] | 185 | * @genpd_performance_state: Device's power domain support performance state. |
Viresh Kumar | 61d8e7c | 2018-06-13 16:00:11 +0530 | [diff] [blame] | 186 | * @is_genpd: Marks if the OPP table belongs to a genpd. |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 187 | * @dentry: debugfs dentry pointer of the real device directory (not links). |
| 188 | * @dentry_name: Name of the real dentry. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 189 | * |
Viresh Kumar | 50f8cfb | 2016-02-09 10:30:37 +0530 | [diff] [blame] | 190 | * @voltage_tolerance_v1: In percentage, for v1 bindings only. |
| 191 | * |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 192 | * This is an internal data structure maintaining the link to opps attached to |
| 193 | * a device. This structure is not meant to be shared to users as it is |
| 194 | * meant for book keeping and private to OPP library. |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 195 | */ |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 196 | struct opp_table { |
Viresh Kumar | 7eba0c7 | 2019-11-25 13:57:58 +0530 | [diff] [blame] | 197 | struct list_head node, lazy; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 198 | |
Viresh Kumar | 052c6f1 | 2017-01-23 10:11:49 +0530 | [diff] [blame] | 199 | struct blocking_notifier_head head; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 200 | struct list_head dev_list; |
| 201 | struct list_head opp_list; |
Viresh Kumar | f067a98 | 2017-01-23 10:11:42 +0530 | [diff] [blame] | 202 | struct kref kref; |
Viresh Kumar | 37a73ec | 2017-01-23 10:11:41 +0530 | [diff] [blame] | 203 | struct mutex lock; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 204 | |
| 205 | struct device_node *np; |
| 206 | unsigned long clock_latency_ns_max; |
Viresh Kumar | 50f8cfb | 2016-02-09 10:30:37 +0530 | [diff] [blame] | 207 | |
| 208 | /* For backward compatibility with v1 bindings */ |
| 209 | unsigned int voltage_tolerance_v1; |
| 210 | |
Viresh Kumar | 03758d6 | 2019-11-11 16:35:03 +0530 | [diff] [blame] | 211 | unsigned int parsed_static_opps; |
Viresh Kumar | 79ee2e8 | 2016-06-16 19:03:11 +0530 | [diff] [blame] | 212 | enum opp_table_access shared_opp; |
Viresh Kumar | 1efae8d | 2022-06-03 15:01:30 +0530 | [diff] [blame] | 213 | unsigned long rate_clk_single; |
Viresh Kumar | 81c4d8a | 2021-01-20 16:16:48 +0530 | [diff] [blame] | 214 | struct dev_pm_opp *current_opp; |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 215 | struct dev_pm_opp *suspend_opp; |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 216 | |
Viresh Kumar | 4f018bc | 2018-06-26 16:29:34 +0530 | [diff] [blame] | 217 | struct mutex genpd_virt_dev_lock; |
| 218 | struct device **genpd_virt_devs; |
Viresh Kumar | 5d6d106 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 219 | struct opp_table **required_opp_tables; |
| 220 | unsigned int required_opp_count; |
| 221 | |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 222 | unsigned int *supported_hw; |
| 223 | unsigned int supported_hw_count; |
Viresh Kumar | 01fb4d3 | 2015-12-09 08:01:47 +0530 | [diff] [blame] | 224 | const char *prop_name; |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 225 | config_clks_t config_clks; |
| 226 | struct clk **clks; |
Viresh Kumar | d54974c | 2016-02-09 10:30:38 +0530 | [diff] [blame] | 227 | struct clk *clk; |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 228 | int clk_count; |
Viresh Kumar | aee3352 | 2022-07-04 13:45:08 +0530 | [diff] [blame] | 229 | config_regulators_t config_regulators; |
Viresh Kumar | dfbe467 | 2016-12-01 16:28:19 +0530 | [diff] [blame] | 230 | struct regulator **regulators; |
Viresh Kumar | 46f48ac | 2018-12-11 16:39:36 +0530 | [diff] [blame] | 231 | int regulator_count; |
Georgi Djakov | 6d3f922 | 2020-05-12 15:53:21 +0300 | [diff] [blame] | 232 | struct icc_path **paths; |
| 233 | unsigned int path_count; |
Viresh Kumar | 72f80ce | 2020-08-13 08:38:37 +0530 | [diff] [blame] | 234 | bool enabled; |
Viresh Kumar | 009acd1 | 2017-10-11 12:54:14 +0530 | [diff] [blame] | 235 | bool genpd_performance_state; |
Viresh Kumar | 61d8e7c | 2018-06-13 16:00:11 +0530 | [diff] [blame] | 236 | bool is_genpd; |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 237 | |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 238 | #ifdef CONFIG_DEBUG_FS |
| 239 | struct dentry *dentry; |
| 240 | char dentry_name[NAME_MAX]; |
| 241 | #endif |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 242 | }; |
| 243 | |
| 244 | /* Routines internal to opp core */ |
Viresh Kumar | a88bd2a | 2017-11-29 15:18:36 +0530 | [diff] [blame] | 245 | void dev_pm_opp_get(struct dev_pm_opp *opp); |
Viresh Kumar | 922ff07 | 2020-08-31 13:03:06 +0530 | [diff] [blame] | 246 | bool _opp_remove_all_static(struct opp_table *opp_table); |
Viresh Kumar | f067a98 | 2017-01-23 10:11:42 +0530 | [diff] [blame] | 247 | void _get_opp_table_kref(struct opp_table *opp_table); |
Viresh Kumar | a1e8c13 | 2018-04-06 14:35:45 +0530 | [diff] [blame] | 248 | int _get_opp_count(struct opp_table *opp_table); |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 249 | struct opp_table *_find_opp_table(struct device *dev); |
| 250 | struct opp_device *_add_opp_dev(const struct device *dev, struct opp_table *opp_table); |
Viresh Kumar | 8cd2f6e | 2017-01-02 14:41:01 +0530 | [diff] [blame] | 251 | struct dev_pm_opp *_opp_allocate(struct opp_table *opp_table); |
| 252 | void _opp_free(struct dev_pm_opp *opp); |
Viresh Kumar | 2083da2 | 2022-06-10 12:02:04 +0530 | [diff] [blame] | 253 | int _opp_compare_key(struct opp_table *opp_table, struct dev_pm_opp *opp1, struct dev_pm_opp *opp2); |
Viresh Kumar | 4768914 | 2022-06-08 11:57:24 +0530 | [diff] [blame] | 254 | int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, struct opp_table *opp_table); |
Viresh Kumar | 8cd2f6e | 2017-01-02 14:41:01 +0530 | [diff] [blame] | 255 | int _opp_add_v1(struct opp_table *opp_table, struct device *dev, unsigned long freq, long u_volt, bool dynamic); |
Viresh Kumar | 2a4eb73 | 2018-09-13 13:14:36 +0530 | [diff] [blame] | 256 | void _dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask, int last_cpu); |
Viresh Kumar | 32439ac | 2021-01-28 12:05:22 +0530 | [diff] [blame] | 257 | struct opp_table *_add_opp_table_indexed(struct device *dev, int index, bool getclk); |
Viresh Kumar | d0e8ae6 | 2018-09-11 11:14:11 +0530 | [diff] [blame] | 258 | void _put_opp_list_kref(struct opp_table *opp_table); |
Viresh Kumar | 7eba0c7 | 2019-11-25 13:57:58 +0530 | [diff] [blame] | 259 | void _required_opps_available(struct dev_pm_opp *opp, int count); |
| 260 | |
| 261 | static inline bool lazy_linking_pending(struct opp_table *opp_table) |
| 262 | { |
| 263 | return unlikely(!list_empty(&opp_table->lazy)); |
| 264 | } |
Viresh Kumar | f47b72a | 2016-05-05 16:20:33 +0530 | [diff] [blame] | 265 | |
| 266 | #ifdef CONFIG_OF |
Viresh Kumar | eb7c8743 | 2018-09-05 16:17:14 +0530 | [diff] [blame] | 267 | void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index); |
Viresh Kumar | 5d6d106 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 268 | void _of_clear_opp_table(struct opp_table *opp_table); |
Viresh Kumar | 283d55e | 2018-09-07 09:01:54 +0530 | [diff] [blame] | 269 | struct opp_table *_managed_opp(struct device *dev, int index); |
Liang He | 3466ea2 | 2022-07-18 21:36:32 +0800 | [diff] [blame] | 270 | void _of_clear_opp(struct opp_table *opp_table, struct dev_pm_opp *opp); |
Viresh Kumar | f47b72a | 2016-05-05 16:20:33 +0530 | [diff] [blame] | 271 | #else |
Viresh Kumar | eb7c8743 | 2018-09-05 16:17:14 +0530 | [diff] [blame] | 272 | static inline void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index) {} |
Viresh Kumar | 5d6d106 | 2018-06-07 14:50:43 +0530 | [diff] [blame] | 273 | static inline void _of_clear_opp_table(struct opp_table *opp_table) {} |
Viresh Kumar | 283d55e | 2018-09-07 09:01:54 +0530 | [diff] [blame] | 274 | static inline struct opp_table *_managed_opp(struct device *dev, int index) { return NULL; } |
Liang He | 3466ea2 | 2022-07-18 21:36:32 +0800 | [diff] [blame] | 275 | static inline void _of_clear_opp(struct opp_table *opp_table, struct dev_pm_opp *opp) {} |
Viresh Kumar | f47b72a | 2016-05-05 16:20:33 +0530 | [diff] [blame] | 276 | #endif |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 277 | |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 278 | #ifdef CONFIG_DEBUG_FS |
| 279 | void opp_debug_remove_one(struct dev_pm_opp *opp); |
Greg Kroah-Hartman | a2dea4c | 2019-01-22 16:21:17 +0100 | [diff] [blame] | 280 | void opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table); |
| 281 | void opp_debug_register(struct opp_device *opp_dev, struct opp_table *opp_table); |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 282 | void opp_debug_unregister(struct opp_device *opp_dev, struct opp_table *opp_table); |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 283 | #else |
| 284 | static inline void opp_debug_remove_one(struct dev_pm_opp *opp) {} |
| 285 | |
Greg Kroah-Hartman | a2dea4c | 2019-01-22 16:21:17 +0100 | [diff] [blame] | 286 | static inline void opp_debug_create_one(struct dev_pm_opp *opp, |
| 287 | struct opp_table *opp_table) { } |
| 288 | |
| 289 | static inline void opp_debug_register(struct opp_device *opp_dev, |
| 290 | struct opp_table *opp_table) { } |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 291 | |
Viresh Kumar | 2c2709d | 2016-02-16 14:17:53 +0530 | [diff] [blame] | 292 | static inline void opp_debug_unregister(struct opp_device *opp_dev, |
| 293 | struct opp_table *opp_table) |
Viresh Kumar | deaa514 | 2015-11-11 07:59:01 +0530 | [diff] [blame] | 294 | { } |
| 295 | #endif /* DEBUG_FS */ |
| 296 | |
Viresh Kumar | f59d3ee | 2015-09-04 13:47:26 +0530 | [diff] [blame] | 297 | #endif /* __DRIVER_OPP_H__ */ |