Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 1 | /* |
Venkatesh Yadav Abbarapu | 95ecd45 | 2019-12-10 22:16:36 -0500 | [diff] [blame] | 2 | * Copyright (c) 2019-2020, Xilinx, Inc. All rights reserved. |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * Versal system level PM-API functions and communication with PMC via |
| 9 | * IPI interrupts |
| 10 | */ |
| 11 | |
| 12 | #include <pm_common.h> |
| 13 | #include <pm_ipi.h> |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 14 | #include <plat/common/platform.h> |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 15 | #include "pm_api_sys.h" |
| 16 | #include "pm_client.h" |
Rajan Vaja | 030620d | 2020-11-23 04:13:54 -0800 | [diff] [blame] | 17 | #include "pm_defs.h" |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 18 | |
| 19 | /********************************************************************* |
| 20 | * Target module IDs macros |
| 21 | ********************************************************************/ |
| 22 | #define LIBPM_MODULE_ID 0x2 |
| 23 | #define LOADER_MODULE_ID 0x7 |
| 24 | |
Saeed Nowshadi | c5a1bda | 2019-12-08 23:35:35 -0800 | [diff] [blame] | 25 | /* default shutdown/reboot scope is system(2) */ |
| 26 | static unsigned int pm_shutdown_scope = XPM_SHUTDOWN_SUBTYPE_RST_SYSTEM; |
| 27 | |
| 28 | /** |
| 29 | * pm_get_shutdown_scope() - Get the currently set shutdown scope |
| 30 | * |
| 31 | * @return Shutdown scope value |
| 32 | */ |
| 33 | unsigned int pm_get_shutdown_scope(void) |
| 34 | { |
| 35 | return pm_shutdown_scope; |
| 36 | } |
| 37 | |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 38 | /** |
| 39 | * Assigning of argument values into array elements. |
| 40 | */ |
| 41 | #define PM_PACK_PAYLOAD1(pl, mid, arg0) { \ |
| 42 | pl[0] = (uint32_t)((uint32_t)((arg0) & 0xFF) | (mid << 8)); \ |
| 43 | } |
| 44 | |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 45 | #define PM_PACK_PAYLOAD2(pl, mid, arg0, arg1) { \ |
| 46 | pl[1] = (uint32_t)(arg1); \ |
| 47 | PM_PACK_PAYLOAD1(pl, mid, arg0); \ |
| 48 | } |
| 49 | |
| 50 | #define PM_PACK_PAYLOAD3(pl, mid, arg0, arg1, arg2) { \ |
| 51 | pl[2] = (uint32_t)(arg2); \ |
| 52 | PM_PACK_PAYLOAD2(pl, mid, arg0, arg1); \ |
| 53 | } |
| 54 | |
| 55 | #define PM_PACK_PAYLOAD4(pl, mid, arg0, arg1, arg2, arg3) { \ |
| 56 | pl[3] = (uint32_t)(arg3); \ |
| 57 | PM_PACK_PAYLOAD3(pl, mid, arg0, arg1, arg2); \ |
| 58 | } |
| 59 | |
| 60 | #define PM_PACK_PAYLOAD5(pl, mid, arg0, arg1, arg2, arg3, arg4) { \ |
| 61 | pl[4] = (uint32_t)(arg4); \ |
| 62 | PM_PACK_PAYLOAD4(pl, mid, arg0, arg1, arg2, arg3); \ |
| 63 | } |
| 64 | |
| 65 | #define PM_PACK_PAYLOAD6(pl, mid, arg0, arg1, arg2, arg3, arg4, arg5) { \ |
| 66 | pl[5] = (uint32_t)(arg5); \ |
| 67 | PM_PACK_PAYLOAD5(pl, mid, arg0, arg1, arg2, arg3, arg4); \ |
| 68 | } |
| 69 | |
Tejas Patel | 9d09ff9 | 2019-01-08 01:46:35 -0800 | [diff] [blame] | 70 | /* PM API functions */ |
| 71 | |
| 72 | /** |
| 73 | * pm_get_api_version() - Get version number of PMC PM firmware |
| 74 | * @version Returns 32-bit version number of PMC Power Management Firmware |
| 75 | * |
| 76 | * @return Returns status, either success or error+reason |
| 77 | */ |
| 78 | enum pm_ret_status pm_get_api_version(unsigned int *version) |
| 79 | { |
| 80 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 81 | |
| 82 | /* Send request to the PMC */ |
| 83 | PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, PM_GET_API_VERSION); |
| 84 | return pm_ipi_send_sync(primary_proc, payload, version, 1); |
| 85 | } |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 86 | |
| 87 | /** |
Ravi Patel | 476b5b1 | 2019-08-12 03:10:10 -0700 | [diff] [blame] | 88 | * pm_init_finalize() - Call to notify PMC PM firmware that master has power |
| 89 | * management enabled and that it has finished its |
| 90 | * initialization |
| 91 | * |
| 92 | * @return Status returned by the PMU firmware |
| 93 | */ |
| 94 | enum pm_ret_status pm_init_finalize(void) |
| 95 | { |
| 96 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 97 | |
| 98 | /* Send request to the PMU */ |
| 99 | PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, PM_INIT_FINALIZE); |
| 100 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 101 | } |
| 102 | |
| 103 | /** |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 104 | * pm_self_suspend() - PM call for processor to suspend itself |
| 105 | * @nid Node id of the processor or subsystem |
| 106 | * @latency Requested maximum wakeup latency (not supported) |
| 107 | * @state Requested state |
| 108 | * @address Resume address |
| 109 | * |
| 110 | * This is a blocking call, it will return only once PMU has responded. |
| 111 | * On a wakeup, resume address will be automatically set by PMU. |
| 112 | * |
| 113 | * @return Returns status, either success or error+reason |
| 114 | */ |
| 115 | enum pm_ret_status pm_self_suspend(uint32_t nid, |
| 116 | unsigned int latency, |
| 117 | unsigned int state, |
| 118 | uintptr_t address) |
| 119 | { |
| 120 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 121 | unsigned int cpuid = plat_my_core_pos(); |
| 122 | const struct pm_proc *proc = pm_get_proc(cpuid); |
| 123 | |
| 124 | if (!proc) { |
| 125 | WARN("Failed to get proc %d\n", cpuid); |
| 126 | return PM_RET_ERROR_INTERNAL; |
| 127 | } |
| 128 | |
| 129 | /* |
| 130 | * Do client specific suspend operations |
| 131 | * (e.g. set powerdown request bit) |
| 132 | */ |
| 133 | pm_client_suspend(proc, state); |
| 134 | |
| 135 | /* Send request to the PLM */ |
| 136 | PM_PACK_PAYLOAD6(payload, LIBPM_MODULE_ID, PM_SELF_SUSPEND, |
| 137 | proc->node_id, latency, state, address, |
| 138 | (address >> 32)); |
| 139 | return pm_ipi_send_sync(proc, payload, NULL, 0); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * pm_abort_suspend() - PM call to announce that a prior suspend request |
| 144 | * is to be aborted. |
| 145 | * @reason Reason for the abort |
| 146 | * |
| 147 | * Calling PU expects the PMU to abort the initiated suspend procedure. |
| 148 | * This is a non-blocking call without any acknowledge. |
| 149 | * |
| 150 | * @return Returns status, either success or error+reason |
| 151 | */ |
| 152 | enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason) |
| 153 | { |
| 154 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 155 | |
| 156 | /* |
| 157 | * Do client specific abort suspend operations |
| 158 | * (e.g. enable interrupts and clear powerdown request bit) |
| 159 | */ |
| 160 | pm_client_abort_suspend(); |
| 161 | |
| 162 | /* Send request to the PLM */ |
| 163 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_ABORT_SUSPEND, reason, |
| 164 | primary_proc->node_id); |
| 165 | return pm_ipi_send(primary_proc, payload); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * pm_req_suspend() - PM call to request for another PU or subsystem to |
| 170 | * be suspended gracefully. |
| 171 | * @target Node id of the targeted PU or subsystem |
| 172 | * @ack Flag to specify whether acknowledge is requested |
| 173 | * @latency Requested wakeup latency (not supported) |
| 174 | * @state Requested state (not supported) |
| 175 | * |
| 176 | * @return Returns status, either success or error+reason |
| 177 | */ |
| 178 | enum pm_ret_status pm_req_suspend(uint32_t target, uint8_t ack, |
| 179 | unsigned int latency, unsigned int state) |
| 180 | { |
| 181 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 182 | |
| 183 | /* Send request to the PMU */ |
| 184 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_REQ_SUSPEND, target, |
| 185 | latency, state); |
| 186 | if (ack == IPI_BLOCKING) |
| 187 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 188 | else |
| 189 | return pm_ipi_send(primary_proc, payload); |
| 190 | } |
Tejas Patel | 41f3e0b | 2019-01-08 01:46:37 -0800 | [diff] [blame] | 191 | |
| 192 | /** |
Tejas Patel | 49cd871 | 2019-01-23 14:18:51 +0530 | [diff] [blame] | 193 | * pm_req_wakeup() - PM call for processor to wake up selected processor |
| 194 | * or subsystem |
| 195 | * @target Device ID of the processor or subsystem to wake up |
| 196 | * @set_address Resume address presence indicator |
| 197 | * 1 - resume address specified, 0 - otherwise |
| 198 | * @address Resume address |
| 199 | * @ack Flag to specify whether acknowledge requested |
| 200 | * |
| 201 | * This API function is either used to power up another APU core for SMP |
| 202 | * (by PSCI) or to power up an entirely different PU or subsystem, such |
| 203 | * as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be |
| 204 | * automatically set by PMC. |
| 205 | * |
| 206 | * @return Returns status, either success or error+reason |
| 207 | */ |
| 208 | enum pm_ret_status pm_req_wakeup(uint32_t target, uint32_t set_address, |
| 209 | uintptr_t address, uint8_t ack) |
| 210 | { |
| 211 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 212 | |
| 213 | /* Send request to the PMC to perform the wake of the PU */ |
| 214 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQ_WAKEUP, target, |
| 215 | set_address, address, ack); |
| 216 | |
| 217 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 218 | } |
| 219 | |
| 220 | /** |
Tejas Patel | 41f3e0b | 2019-01-08 01:46:37 -0800 | [diff] [blame] | 221 | * pm_request_device() - Request a device |
| 222 | * @device_id Device ID |
| 223 | * @capabilities Requested capabilities for the device |
| 224 | * @qos Required Quality of Service |
| 225 | * @ack Flag to specify whether acknowledge requested |
| 226 | * |
| 227 | * @return Returns status, either success or error+reason |
| 228 | */ |
| 229 | enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities, |
| 230 | uint32_t qos, uint32_t ack) |
| 231 | { |
| 232 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 233 | |
| 234 | /* Send request to the PMC */ |
| 235 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REQUEST_DEVICE, |
| 236 | device_id, capabilities, qos, ack); |
| 237 | |
| 238 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * pm_release_device() - Release a device |
| 243 | * @device_id Device ID |
| 244 | * |
| 245 | * @return Returns status, either success or error+reason |
| 246 | */ |
| 247 | enum pm_ret_status pm_release_device(uint32_t device_id) |
| 248 | { |
| 249 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 250 | |
| 251 | /* Send request to the PMC */ |
| 252 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_RELEASE_DEVICE, |
| 253 | device_id); |
| 254 | |
| 255 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * pm_set_requirement() - Set requirement for the device |
| 260 | * @device_id Device ID |
| 261 | * @capabilities Requested capabilities for the device |
| 262 | * @latency Requested maximum latency |
| 263 | * @qos Required Quality of Service |
| 264 | * |
| 265 | * @return Returns status, either success or error+reason |
| 266 | */ |
| 267 | enum pm_ret_status pm_set_requirement(uint32_t device_id, uint32_t capabilities, |
| 268 | uint32_t latency, uint32_t qos) |
| 269 | { |
| 270 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 271 | |
| 272 | /* Send request to the PMC */ |
| 273 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_SET_REQUIREMENT, |
| 274 | device_id, capabilities, latency, qos); |
| 275 | |
| 276 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * pm_get_device_status() - Get device's status |
| 281 | * @device_id Device ID |
| 282 | * @response Buffer to store device status response |
| 283 | * |
| 284 | * @return Returns status, either success or error+reason |
| 285 | */ |
| 286 | enum pm_ret_status pm_get_device_status(uint32_t device_id, uint32_t *response) |
| 287 | { |
| 288 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 289 | |
| 290 | /* Send request to the PMC */ |
| 291 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_GET_DEVICE_STATUS, |
| 292 | device_id); |
| 293 | |
| 294 | return pm_ipi_send_sync(primary_proc, payload, response, 3); |
| 295 | } |
Tejas Patel | 87c4f3a | 2019-01-08 01:46:38 -0800 | [diff] [blame] | 296 | |
| 297 | /** |
| 298 | * pm_reset_assert() - Assert/De-assert reset |
| 299 | * @reset Reset ID |
| 300 | * @assert Assert (1) or de-assert (0) |
| 301 | * |
| 302 | * @return Returns status, either success or error+reason |
| 303 | */ |
| 304 | enum pm_ret_status pm_reset_assert(uint32_t reset, bool assert) |
| 305 | { |
| 306 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 307 | |
| 308 | /* Send request to the PMC */ |
| 309 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_RESET_ASSERT, reset, |
| 310 | assert); |
| 311 | |
| 312 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * pm_reset_get_status() - Get current status of a reset line |
| 317 | * @reset Reset ID |
| 318 | * @status Returns current status of selected reset ID |
| 319 | * |
| 320 | * @return Returns status, either success or error+reason |
| 321 | */ |
| 322 | enum pm_ret_status pm_reset_get_status(uint32_t reset, uint32_t *status) |
| 323 | { |
| 324 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 325 | |
| 326 | /* Send request to the PMC */ |
| 327 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_RESET_ASSERT, reset); |
| 328 | |
| 329 | return pm_ipi_send_sync(primary_proc, payload, status, 1); |
| 330 | } |
Tejas Patel | 20e9202 | 2019-01-08 01:46:39 -0800 | [diff] [blame] | 331 | |
| 332 | /** |
Rajan Vaja | 649e924 | 2019-03-04 11:09:40 +0530 | [diff] [blame] | 333 | * pm_get_callbackdata() - Read from IPI response buffer |
| 334 | * @data - array of PAYLOAD_ARG_CNT elements |
| 335 | * |
| 336 | * Read value from ipi buffer response buffer. |
| 337 | */ |
| 338 | void pm_get_callbackdata(uint32_t *data, size_t count) |
| 339 | { |
| 340 | /* Return if interrupt is not from PMU */ |
| 341 | if (!pm_ipi_irq_status(primary_proc)) |
| 342 | return; |
| 343 | |
| 344 | pm_ipi_buff_read_callb(data, count); |
| 345 | pm_ipi_irq_clear(primary_proc); |
| 346 | } |
| 347 | |
| 348 | /** |
Tejas Patel | 20e9202 | 2019-01-08 01:46:39 -0800 | [diff] [blame] | 349 | * pm_pinctrl_request() - Request a pin |
| 350 | * @pin Pin ID |
| 351 | * |
| 352 | * @return Returns status, either success or error+reason |
| 353 | */ |
| 354 | enum pm_ret_status pm_pinctrl_request(uint32_t pin) |
| 355 | { |
| 356 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 357 | |
| 358 | /* Send request to the PMC */ |
| 359 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_REQUEST, pin); |
| 360 | |
| 361 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * pm_pinctrl_release() - Release a pin |
| 366 | * @pin Pin ID |
| 367 | * |
| 368 | * @return Returns status, either success or error+reason |
| 369 | */ |
| 370 | enum pm_ret_status pm_pinctrl_release(uint32_t pin) |
| 371 | { |
| 372 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 373 | |
| 374 | /* Send request to the PMC */ |
| 375 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_RELEASE, pin); |
| 376 | |
| 377 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * pm_pinctrl_set_function() - Set pin function |
| 382 | * @pin Pin ID |
| 383 | * @function Function ID |
| 384 | * |
| 385 | * @return Returns status, either success or error+reason |
| 386 | */ |
| 387 | enum pm_ret_status pm_pinctrl_set_function(uint32_t pin, uint32_t function) |
| 388 | { |
| 389 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 390 | |
| 391 | /* Send request to the PMC */ |
| 392 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PINCTRL_SET_FUNCTION, pin, |
| 393 | function) |
| 394 | |
| 395 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * pm_pinctrl_get_function() - Get function set on the pin |
| 400 | * @pin Pin ID |
| 401 | * @function Function set on the pin |
| 402 | * |
| 403 | * @return Returns status, either success or error+reason |
| 404 | */ |
| 405 | enum pm_ret_status pm_pinctrl_get_function(uint32_t pin, uint32_t *function) |
| 406 | { |
| 407 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 408 | |
| 409 | /* Send request to the PMC */ |
| 410 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PINCTRL_SET_FUNCTION, |
| 411 | pin); |
| 412 | |
| 413 | return pm_ipi_send_sync(primary_proc, payload, function, 1); |
| 414 | } |
| 415 | |
| 416 | /** |
| 417 | * pm_pinctrl_set_pin_param() - Set configuration parameter for the pin |
| 418 | * @pin Pin ID |
| 419 | * @param Parameter ID |
| 420 | * @value Parameter value |
| 421 | * |
| 422 | * @return Returns status, either success or error+reason |
| 423 | */ |
| 424 | enum pm_ret_status pm_pinctrl_set_pin_param(uint32_t pin, uint32_t param, |
| 425 | uint32_t value) |
| 426 | { |
| 427 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 428 | |
| 429 | /* Send request to the PMC */ |
| 430 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_PINCTRL_CONFIG_PARAM_SET, |
| 431 | pin, param, value); |
| 432 | |
| 433 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * pm_pinctrl_get_pin_param() - Get configuration parameter value for the pin |
| 438 | * @pin Pin ID |
| 439 | * @param Parameter ID |
| 440 | * @value Buffer to store parameter value |
| 441 | * |
| 442 | * @return Returns status, either success or error+reason |
| 443 | */ |
| 444 | enum pm_ret_status pm_pinctrl_get_pin_param(uint32_t pin, uint32_t param, |
| 445 | uint32_t *value) |
| 446 | { |
| 447 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 448 | |
| 449 | /* Send request to the PMC */ |
| 450 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PINCTRL_CONFIG_PARAM_GET, |
| 451 | pin, param); |
| 452 | |
| 453 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 454 | } |
Tejas Patel | 1f56fb1 | 2019-01-08 01:46:40 -0800 | [diff] [blame] | 455 | |
| 456 | /** |
| 457 | * pm_clock_enable() - Enable the clock |
| 458 | * @clk_id Clock ID |
| 459 | * |
| 460 | * @return Returns status, either success or error+reason |
| 461 | */ |
| 462 | enum pm_ret_status pm_clock_enable(uint32_t clk_id) |
| 463 | { |
| 464 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 465 | |
| 466 | /* Send request to the PMC */ |
| 467 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_ENABLE, clk_id); |
| 468 | |
| 469 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * pm_clock_disable() - Disable the clock |
| 474 | * @clk_id Clock ID |
| 475 | * |
| 476 | * @return Returns status, either success or error+reason |
| 477 | */ |
| 478 | enum pm_ret_status pm_clock_disable(uint32_t clk_id) |
| 479 | { |
| 480 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 481 | |
| 482 | /* Send request to the PMC */ |
| 483 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_DISABLE, clk_id); |
| 484 | |
| 485 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 486 | } |
| 487 | |
| 488 | /** |
| 489 | * pm_clock_get_state() - Get clock status |
| 490 | * @clk_id Clock ID |
| 491 | * @state: Buffer to store clock status (1: Enabled, 0:Disabled) |
| 492 | * |
| 493 | * @return Returns status, either success or error+reason |
| 494 | */ |
| 495 | enum pm_ret_status pm_clock_get_state(uint32_t clk_id, uint32_t *state) |
| 496 | { |
| 497 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 498 | |
| 499 | /* Send request to the PMC */ |
| 500 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETSTATE, clk_id); |
| 501 | |
| 502 | return pm_ipi_send_sync(primary_proc, payload, state, 1); |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * pm_clock_set_divider() - Set divider for the clock |
| 507 | * @clk_id Clock ID |
| 508 | * @divider Divider value |
| 509 | * |
| 510 | * @return Returns status, either success or error+reason |
| 511 | */ |
| 512 | enum pm_ret_status pm_clock_set_divider(uint32_t clk_id, uint32_t divider) |
| 513 | { |
| 514 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 515 | |
| 516 | /* Send request to the PMC */ |
| 517 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_CLOCK_SETDIVIDER, clk_id, |
| 518 | divider); |
| 519 | |
| 520 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * pm_clock_get_divider() - Get divider value for the clock |
| 525 | * @clk_id Clock ID |
| 526 | * @divider: Buffer to store clock divider value |
| 527 | * |
| 528 | * @return Returns status, either success or error+reason |
| 529 | */ |
| 530 | enum pm_ret_status pm_clock_get_divider(uint32_t clk_id, uint32_t *divider) |
| 531 | { |
| 532 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 533 | |
| 534 | /* Send request to the PMC */ |
| 535 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETDIVIDER, clk_id); |
| 536 | |
| 537 | return pm_ipi_send_sync(primary_proc, payload, divider, 1); |
| 538 | } |
| 539 | |
| 540 | /** |
| 541 | * pm_clock_set_parent() - Set parent for the clock |
| 542 | * @clk_id Clock ID |
| 543 | * @parent Parent ID |
| 544 | * |
| 545 | * @return Returns status, either success or error+reason |
| 546 | */ |
| 547 | enum pm_ret_status pm_clock_set_parent(uint32_t clk_id, uint32_t parent) |
| 548 | { |
| 549 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 550 | |
| 551 | /* Send request to the PMC */ |
| 552 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_CLOCK_SETPARENT, clk_id, |
| 553 | parent); |
| 554 | |
| 555 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * pm_clock_get_parent() - Get parent value for the clock |
| 560 | * @clk_id Clock ID |
| 561 | * @parent: Buffer to store clock parent value |
| 562 | * |
| 563 | * @return Returns status, either success or error+reason |
| 564 | */ |
| 565 | enum pm_ret_status pm_clock_get_parent(uint32_t clk_id, uint32_t *parent) |
| 566 | { |
| 567 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 568 | |
| 569 | /* Send request to the PMC */ |
| 570 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETPARENT, clk_id); |
| 571 | |
| 572 | return pm_ipi_send_sync(primary_proc, payload, parent, 1); |
| 573 | } |
Tejas Patel | 84275bf | 2020-09-01 04:43:53 -0700 | [diff] [blame] | 574 | /** |
| 575 | * pm_clock_get_rate() - Get the rate value for the clock |
| 576 | * @clk_id Clock ID |
| 577 | * @rate: Buffer to store clock rate value |
| 578 | * |
| 579 | * @return Returns status, either success or error+reason |
| 580 | */ |
| 581 | enum pm_ret_status pm_clock_get_rate(uint32_t clk_id, uint32_t *clk_rate) |
| 582 | { |
| 583 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 584 | |
| 585 | /* Send request to the PMC */ |
| 586 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_CLOCK_GETRATE, clk_id); |
| 587 | |
| 588 | return pm_ipi_send_sync(primary_proc, payload, clk_rate, 2); |
| 589 | } |
Tejas Patel | 023116d | 2019-01-08 01:46:41 -0800 | [diff] [blame] | 590 | |
| 591 | /** |
| 592 | * pm_pll_set_param() - Set PLL parameter |
| 593 | * @clk_id PLL clock ID |
| 594 | * @param PLL parameter ID |
| 595 | * @value Value to set for PLL parameter |
| 596 | * |
| 597 | * @return Returns status, either success or error+reason |
| 598 | */ |
| 599 | enum pm_ret_status pm_pll_set_param(uint32_t clk_id, uint32_t param, |
| 600 | uint32_t value) |
| 601 | { |
| 602 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 603 | |
| 604 | /* Send request to the PMC */ |
| 605 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_PLL_SET_PARAMETER, clk_id, |
| 606 | param, value); |
| 607 | |
| 608 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 609 | } |
| 610 | |
| 611 | /** |
| 612 | * pm_pll_get_param() - Get PLL parameter value |
| 613 | * @clk_id PLL clock ID |
| 614 | * @param PLL parameter ID |
| 615 | * @value: Buffer to store PLL parameter value |
| 616 | * |
| 617 | * @return Returns status, either success or error+reason |
| 618 | */ |
| 619 | enum pm_ret_status pm_pll_get_param(uint32_t clk_id, uint32_t param, |
| 620 | uint32_t *value) |
| 621 | { |
| 622 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 623 | |
| 624 | /* Send request to the PMC */ |
| 625 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PLL_GET_PARAMETER, clk_id, |
| 626 | param); |
| 627 | |
| 628 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 629 | } |
| 630 | |
| 631 | /** |
| 632 | * pm_pll_set_mode() - Set PLL mode |
| 633 | * @clk_id PLL clock ID |
| 634 | * @mode PLL mode |
| 635 | * |
| 636 | * @return Returns status, either success or error+reason |
| 637 | */ |
| 638 | enum pm_ret_status pm_pll_set_mode(uint32_t clk_id, uint32_t mode) |
| 639 | { |
| 640 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 641 | |
| 642 | /* Send request to the PMC */ |
| 643 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_PLL_SET_MODE, clk_id, |
| 644 | mode); |
| 645 | |
| 646 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 647 | } |
| 648 | |
| 649 | /** |
| 650 | * pm_pll_get_mode() - Get PLL mode |
| 651 | * @clk_id PLL clock ID |
| 652 | * @mode: Buffer to store PLL mode |
| 653 | * |
| 654 | * @return Returns status, either success or error+reason |
| 655 | */ |
| 656 | enum pm_ret_status pm_pll_get_mode(uint32_t clk_id, uint32_t *mode) |
| 657 | { |
| 658 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 659 | |
| 660 | /* Send request to the PMC */ |
| 661 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_PLL_GET_MODE, clk_id); |
| 662 | |
| 663 | return pm_ipi_send_sync(primary_proc, payload, mode, 1); |
| 664 | } |
Tejas Patel | 6b28225 | 2019-01-10 03:03:47 -0800 | [diff] [blame] | 665 | |
| 666 | /** |
| 667 | * pm_force_powerdown() - PM call to request for another PU or subsystem to |
| 668 | * be powered down forcefully |
| 669 | * @target Device ID of the PU node to be forced powered down. |
| 670 | * @ack Flag to specify whether acknowledge is requested |
| 671 | * |
| 672 | * @return Returns status, either success or error+reason |
| 673 | */ |
| 674 | enum pm_ret_status pm_force_powerdown(uint32_t target, uint8_t ack) |
| 675 | { |
| 676 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 677 | |
| 678 | /* Send request to the PMC */ |
| 679 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_FORCE_POWERDOWN, target, |
| 680 | ack); |
| 681 | |
| 682 | if (ack == IPI_BLOCKING) |
| 683 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 684 | else |
| 685 | return pm_ipi_send(primary_proc, payload); |
| 686 | } |
| 687 | |
| 688 | /** |
| 689 | * pm_system_shutdown() - PM call to request a system shutdown or restart |
Saeed Nowshadi | c5a1bda | 2019-12-08 23:35:35 -0800 | [diff] [blame] | 690 | * @type Shutdown or restart? 0=shutdown, 1=restart, 2=setscope |
Tejas Patel | 6b28225 | 2019-01-10 03:03:47 -0800 | [diff] [blame] | 691 | * @subtype Scope: 0=APU-subsystem, 1=PS, 2=system |
| 692 | * |
| 693 | * @return Returns status, either success or error+reason |
| 694 | */ |
| 695 | enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype) |
| 696 | { |
| 697 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 698 | |
Saeed Nowshadi | c5a1bda | 2019-12-08 23:35:35 -0800 | [diff] [blame] | 699 | if (type == XPM_SHUTDOWN_TYPE_SETSCOPE_ONLY) { |
| 700 | /* Setting scope for subsequent PSCI reboot or shutdown */ |
| 701 | pm_shutdown_scope = subtype; |
| 702 | return PM_RET_SUCCESS; |
| 703 | } |
| 704 | |
Tejas Patel | 6b28225 | 2019-01-10 03:03:47 -0800 | [diff] [blame] | 705 | /* Send request to the PMC */ |
| 706 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_SYSTEM_SHUTDOWN, type, |
| 707 | subtype); |
| 708 | |
| 709 | return pm_ipi_send_non_blocking(primary_proc, payload); |
| 710 | } |
Tejas Patel | 9141f44 | 2019-01-10 03:03:48 -0800 | [diff] [blame] | 711 | |
| 712 | /** |
Tejas Patel | a3e34ad | 2019-02-01 17:25:19 +0530 | [diff] [blame] | 713 | * pm_query_data() - PM API for querying firmware data |
| 714 | * @qid The type of data to query |
| 715 | * @arg1 Argument 1 to requested query data call |
| 716 | * @arg2 Argument 2 to requested query data call |
| 717 | * @arg3 Argument 3 to requested query data call |
| 718 | * @data Returned output data |
| 719 | * |
| 720 | * This function returns requested data. |
| 721 | */ |
| 722 | enum pm_ret_status pm_query_data(uint32_t qid, uint32_t arg1, uint32_t arg2, |
| 723 | uint32_t arg3, uint32_t *data) |
| 724 | { |
Rajan Vaja | 030620d | 2020-11-23 04:13:54 -0800 | [diff] [blame] | 725 | uint32_t ret; |
| 726 | uint32_t version; |
Tejas Patel | a3e34ad | 2019-02-01 17:25:19 +0530 | [diff] [blame] | 727 | uint32_t payload[PAYLOAD_ARG_CNT]; |
Rajan Vaja | 030620d | 2020-11-23 04:13:54 -0800 | [diff] [blame] | 728 | uint32_t fw_api_version; |
Tejas Patel | a3e34ad | 2019-02-01 17:25:19 +0530 | [diff] [blame] | 729 | |
| 730 | /* Send request to the PMC */ |
| 731 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_QUERY_DATA, qid, arg1, |
| 732 | arg2, arg3); |
Rajan Vaja | 030620d | 2020-11-23 04:13:54 -0800 | [diff] [blame] | 733 | |
| 734 | ret = pm_feature_check(PM_QUERY_DATA, &version); |
Manish Pandey | 3bc1bea | 2020-12-10 10:48:22 +0000 | [diff] [blame] | 735 | if (PM_RET_SUCCESS == ret) { |
Rajan Vaja | 030620d | 2020-11-23 04:13:54 -0800 | [diff] [blame] | 736 | fw_api_version = version & 0xFFFF ; |
| 737 | if ((2U == fw_api_version) && |
| 738 | ((XPM_QID_CLOCK_GET_NAME == qid) || |
| 739 | (XPM_QID_PINCTRL_GET_FUNCTION_NAME == qid))) { |
| 740 | ret = pm_ipi_send_sync(primary_proc, payload, data, 8); |
| 741 | ret = data[0]; |
| 742 | data[0] = data[1]; |
| 743 | data[1] = data[2]; |
| 744 | data[2] = data[3]; |
| 745 | } else { |
| 746 | ret = pm_ipi_send_sync(primary_proc, payload, data, 4); |
| 747 | } |
| 748 | } |
| 749 | return ret; |
Tejas Patel | a3e34ad | 2019-02-01 17:25:19 +0530 | [diff] [blame] | 750 | } |
| 751 | /** |
Tejas Patel | 9141f44 | 2019-01-10 03:03:48 -0800 | [diff] [blame] | 752 | * pm_api_ioctl() - PM IOCTL API for device control and configs |
| 753 | * @device_id Device ID |
| 754 | * @ioctl_id ID of the requested IOCTL |
| 755 | * @arg1 Argument 1 to requested IOCTL call |
| 756 | * @arg2 Argument 2 to requested IOCTL call |
| 757 | * @value Returned output value |
| 758 | * |
| 759 | * This function calls IOCTL to firmware for device control and configuration. |
| 760 | * |
| 761 | * @return Returns status, either success or error+reason |
| 762 | */ |
| 763 | enum pm_ret_status pm_api_ioctl(uint32_t device_id, uint32_t ioctl_id, |
| 764 | uint32_t arg1, uint32_t arg2, uint32_t *value) |
| 765 | { |
| 766 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 767 | |
| 768 | switch (ioctl_id) { |
| 769 | case IOCTL_SET_PLL_FRAC_MODE: |
| 770 | return pm_pll_set_mode(arg1, arg2); |
| 771 | case IOCTL_GET_PLL_FRAC_MODE: |
| 772 | return pm_pll_get_mode(arg1, value); |
| 773 | case IOCTL_SET_PLL_FRAC_DATA: |
| 774 | return pm_pll_set_param(arg1, PM_PLL_PARAM_DATA, arg2); |
| 775 | case IOCTL_GET_PLL_FRAC_DATA: |
| 776 | return pm_pll_get_param(arg1, PM_PLL_PARAM_DATA, value); |
| 777 | default: |
| 778 | /* Send request to the PMC */ |
| 779 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_IOCTL, device_id, |
| 780 | ioctl_id, arg1, arg2); |
| 781 | return pm_ipi_send_sync(primary_proc, payload, value, 1); |
| 782 | } |
| 783 | } |
Tejas Patel | db81205 | 2019-01-23 14:18:53 +0530 | [diff] [blame] | 784 | |
| 785 | /** |
| 786 | * pm_set_wakeup_source() - PM call to specify the wakeup source while suspended |
| 787 | * @target Device id of the targeted PU or subsystem |
| 788 | * @wkup_node Device id of the wakeup peripheral |
| 789 | * @enable Enable or disable the specified peripheral as wake source |
| 790 | * |
| 791 | * @return Returns status, either success or error+reason |
| 792 | */ |
| 793 | enum pm_ret_status pm_set_wakeup_source(uint32_t target, uint32_t wkup_device, |
| 794 | uint8_t enable) |
| 795 | { |
| 796 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 797 | |
| 798 | PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, PM_SET_WAKEUP_SOURCE, target, |
| 799 | wkup_device, enable); |
| 800 | return pm_ipi_send(primary_proc, payload); |
| 801 | } |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 802 | |
| 803 | /** |
Ravi Patel | bd4aa5a | 2019-08-12 03:17:54 -0700 | [diff] [blame] | 804 | * pm_get_chipid() - Read silicon ID registers |
| 805 | * @value Buffer for return values. Must be large enough |
| 806 | * to hold 8 bytes. |
| 807 | * |
| 808 | * @return Returns silicon ID registers |
| 809 | */ |
| 810 | enum pm_ret_status pm_get_chipid(uint32_t *value) |
| 811 | { |
| 812 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 813 | |
| 814 | /* Send request to the PMC */ |
| 815 | PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, PM_GET_CHIPID); |
| 816 | |
| 817 | return pm_ipi_send_sync(primary_proc, payload, value, 2); |
| 818 | } |
| 819 | |
| 820 | /** |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 821 | * pm_feature_check() - Returns the supported API version if supported |
| 822 | * @api_id API ID to check |
| 823 | * @value Returned supported API version |
| 824 | * |
| 825 | * @return Returns status, either success or error+reason |
| 826 | */ |
| 827 | enum pm_ret_status pm_feature_check(uint32_t api_id, unsigned int *version) |
| 828 | { |
| 829 | uint32_t payload[PAYLOAD_ARG_CNT], fw_api_version; |
| 830 | uint32_t status; |
| 831 | |
| 832 | switch (api_id) { |
| 833 | case PM_GET_CALLBACK_DATA: |
| 834 | case PM_GET_TRUSTZONE_VERSION: |
Rajan Vaja | ad1ffff | 2021-01-20 00:53:45 -0800 | [diff] [blame] | 835 | case PM_LOAD_PDI: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 836 | *version = (PM_API_BASE_VERSION << 16); |
| 837 | return PM_RET_SUCCESS; |
| 838 | case PM_GET_API_VERSION: |
| 839 | case PM_GET_DEVICE_STATUS: |
Saeed Nowshadi | 2294b42 | 2019-06-03 10:22:35 -0700 | [diff] [blame] | 840 | case PM_GET_OP_CHARACTERISTIC: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 841 | case PM_REQ_SUSPEND: |
| 842 | case PM_SELF_SUSPEND: |
| 843 | case PM_FORCE_POWERDOWN: |
| 844 | case PM_ABORT_SUSPEND: |
| 845 | case PM_REQ_WAKEUP: |
| 846 | case PM_SET_WAKEUP_SOURCE: |
| 847 | case PM_SYSTEM_SHUTDOWN: |
| 848 | case PM_REQUEST_DEVICE: |
| 849 | case PM_RELEASE_DEVICE: |
| 850 | case PM_SET_REQUIREMENT: |
| 851 | case PM_RESET_ASSERT: |
| 852 | case PM_RESET_GET_STATUS: |
Venkatesh Yadav Abbarapu | 95ecd45 | 2019-12-10 22:16:36 -0500 | [diff] [blame] | 853 | case PM_GET_CHIPID: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 854 | case PM_PINCTRL_REQUEST: |
| 855 | case PM_PINCTRL_RELEASE: |
| 856 | case PM_PINCTRL_GET_FUNCTION: |
| 857 | case PM_PINCTRL_SET_FUNCTION: |
| 858 | case PM_PINCTRL_CONFIG_PARAM_GET: |
| 859 | case PM_PINCTRL_CONFIG_PARAM_SET: |
| 860 | case PM_IOCTL: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 861 | case PM_CLOCK_ENABLE: |
| 862 | case PM_CLOCK_DISABLE: |
| 863 | case PM_CLOCK_GETSTATE: |
| 864 | case PM_CLOCK_SETDIVIDER: |
| 865 | case PM_CLOCK_GETDIVIDER: |
| 866 | case PM_CLOCK_SETPARENT: |
| 867 | case PM_CLOCK_GETPARENT: |
Tejas Patel | 84275bf | 2020-09-01 04:43:53 -0700 | [diff] [blame] | 868 | case PM_CLOCK_GETRATE: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 869 | case PM_PLL_SET_PARAMETER: |
| 870 | case PM_PLL_GET_PARAMETER: |
| 871 | case PM_PLL_SET_MODE: |
| 872 | case PM_PLL_GET_MODE: |
| 873 | case PM_FEATURE_CHECK: |
Ravi Patel | 476b5b1 | 2019-08-12 03:10:10 -0700 | [diff] [blame] | 874 | case PM_INIT_FINALIZE: |
Tejas Patel | 5c154e1 | 2020-11-25 01:53:12 -0800 | [diff] [blame] | 875 | case PM_SET_MAX_LATENCY: |
Tejas Patel | 4201555 | 2020-11-25 01:56:57 -0800 | [diff] [blame] | 876 | case PM_REGISTER_NOTIFIER: |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 877 | *version = (PM_API_BASE_VERSION << 16); |
| 878 | break; |
Rajan Vaja | ad1ffff | 2021-01-20 00:53:45 -0800 | [diff] [blame] | 879 | case PM_QUERY_DATA: |
| 880 | *version = (PM_API_QUERY_DATA_VERSION << 16); |
| 881 | break; |
Ravi Patel | 22b0b49 | 2019-03-06 12:34:46 +0530 | [diff] [blame] | 882 | default: |
| 883 | *version = 0U; |
| 884 | return PM_RET_ERROR_NOFEATURE; |
| 885 | } |
| 886 | |
| 887 | PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, PM_FEATURE_CHECK, api_id); |
| 888 | |
| 889 | status = pm_ipi_send_sync(primary_proc, payload, &fw_api_version, 1); |
| 890 | if (status != PM_RET_SUCCESS) |
| 891 | return status; |
| 892 | |
| 893 | *version |= fw_api_version; |
| 894 | |
| 895 | return PM_RET_SUCCESS; |
| 896 | } |
Jolly Shah | ed05a71 | 2019-03-22 05:33:39 +0530 | [diff] [blame] | 897 | |
| 898 | /** |
| 899 | * pm_load_pdi() - Load the PDI |
| 900 | * |
| 901 | * This function provides support to load PDI from linux |
| 902 | * |
| 903 | * src: Source device of pdi(DDR, OCM, SD etc) |
| 904 | * address_low: lower 32-bit Linear memory space address |
| 905 | * address_high: higher 32-bit Linear memory space address |
| 906 | * |
| 907 | * @return Returns status, either success or error+reason |
| 908 | */ |
| 909 | enum pm_ret_status pm_load_pdi(uint32_t src, |
| 910 | uint32_t address_low, uint32_t address_high) |
| 911 | { |
| 912 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 913 | |
| 914 | /* Send request to the PMU */ |
| 915 | PM_PACK_PAYLOAD4(payload, LOADER_MODULE_ID, PM_LOAD_PDI, src, |
| 916 | address_high, address_low); |
| 917 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 918 | } |
Saeed Nowshadi | 2294b42 | 2019-06-03 10:22:35 -0700 | [diff] [blame] | 919 | |
| 920 | /** |
| 921 | * pm_get_op_characteristic() - PM call to request operating characteristics |
| 922 | * of a device |
| 923 | * @device_id Device id |
| 924 | * @type Type of the operating characteristic |
| 925 | * (power, temperature and latency) |
| 926 | * @result Returns the operating characteristic for the requested device, |
| 927 | * specified by the type |
| 928 | * |
| 929 | * @return Returns status, either success or error+reason |
| 930 | */ |
| 931 | enum pm_ret_status pm_get_op_characteristic(uint32_t device_id, |
| 932 | enum pm_opchar_type type, |
| 933 | uint32_t *result) |
| 934 | { |
| 935 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 936 | |
| 937 | /* Send request to the PMC */ |
| 938 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_GET_OP_CHARACTERISTIC, |
| 939 | device_id, type); |
| 940 | return pm_ipi_send_sync(primary_proc, payload, result, 1); |
| 941 | } |
Tejas Patel | 5c154e1 | 2020-11-25 01:53:12 -0800 | [diff] [blame] | 942 | |
| 943 | /** |
| 944 | * pm_set_max_latency() - PM call to change in the maximum wake-up latency |
| 945 | * requirements for a specific device currently |
| 946 | * used by that CPU. |
| 947 | * @device_id Device ID |
| 948 | * @latency Latency value |
| 949 | * |
| 950 | * @return Returns status, either success or error+reason |
| 951 | */ |
| 952 | enum pm_ret_status pm_set_max_latency(uint32_t device_id, uint32_t latency) |
| 953 | { |
| 954 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 955 | |
| 956 | /* Send request to the PMC */ |
| 957 | PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, PM_SET_MAX_LATENCY, |
| 958 | device_id, latency); |
| 959 | |
| 960 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 961 | } |
Tejas Patel | 4201555 | 2020-11-25 01:56:57 -0800 | [diff] [blame] | 962 | |
| 963 | /** |
| 964 | * pm_register_notifier() - PM call to register a subsystem to be notified |
| 965 | * about the device event |
| 966 | * @device_id Device ID for the Node to which the event is related |
| 967 | * @event Event in question |
| 968 | * @wake Wake subsystem upon capturing the event if value 1 |
| 969 | * @enable Enable the registration for value 1, disable for value 0 |
| 970 | * |
| 971 | * @return Returns status, either success or error+reason |
| 972 | */ |
| 973 | enum pm_ret_status pm_register_notifier(uint32_t device_id, uint32_t event, |
| 974 | uint32_t wake, uint32_t enable) |
| 975 | { |
| 976 | uint32_t payload[PAYLOAD_ARG_CNT]; |
| 977 | |
| 978 | /* Send request to the PMC */ |
| 979 | PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, PM_REGISTER_NOTIFIER, |
| 980 | device_id, event, wake, enable); |
| 981 | |
| 982 | return pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| 983 | } |