Alan Kwong | 83b6cbe | 2016-09-17 20:08:37 -0400 | [diff] [blame] | 1 | /* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved. |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #define pr_fmt(fmt) "[drm:%s:%d]: " fmt, __func__, __LINE__ |
| 15 | |
| 16 | #include <linux/clk.h> |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/of.h> |
| 19 | #include <linux/string.h> |
| 20 | #include <linux/of_address.h> |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 21 | #include <linux/slab.h> |
| 22 | #include <linux/mutex.h> |
| 23 | #include <linux/of_platform.h> |
| 24 | |
| 25 | #include <linux/msm-bus.h> |
| 26 | #include <linux/msm-bus-board.h> |
Dhaval Patel | 1ac9103 | 2016-09-26 19:25:39 -0700 | [diff] [blame] | 27 | #include <linux/sde_io_util.h> |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 28 | #include <linux/sde_rsc.h> |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 29 | |
| 30 | #include "sde_power_handle.h" |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 31 | #include "sde_trace.h" |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 32 | |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 33 | static void sde_power_event_trigger_locked(struct sde_power_handle *phandle, |
| 34 | u32 event_type) |
| 35 | { |
| 36 | struct sde_power_event *event; |
| 37 | |
| 38 | list_for_each_entry(event, &phandle->event_list, list) { |
| 39 | if (event->event_type & event_type) |
| 40 | event->cb_fnc(event_type, event->usr); |
| 41 | } |
| 42 | } |
| 43 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 44 | static int sde_power_rsc_update(struct sde_power_handle *phandle, bool enable) |
| 45 | { |
| 46 | u32 rsc_state; |
Veera Sundaram Sankaran | 479defc | 2017-04-28 15:33:54 -0700 | [diff] [blame^] | 47 | int ret = 0; |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 48 | |
| 49 | /* creates the rsc client on the first enable */ |
| 50 | if (!phandle->rsc_client_init) { |
| 51 | phandle->rsc_client = sde_rsc_client_create(SDE_RSC_INDEX, |
| 52 | "sde_power_handle", false); |
| 53 | if (IS_ERR_OR_NULL(phandle->rsc_client)) { |
| 54 | pr_debug("sde rsc client create failed :%ld\n", |
| 55 | PTR_ERR(phandle->rsc_client)); |
| 56 | phandle->rsc_client = NULL; |
| 57 | } |
| 58 | phandle->rsc_client_init = true; |
| 59 | } |
| 60 | |
| 61 | rsc_state = enable ? SDE_RSC_CLK_STATE : SDE_RSC_IDLE_STATE; |
| 62 | |
Veera Sundaram Sankaran | 479defc | 2017-04-28 15:33:54 -0700 | [diff] [blame^] | 63 | if (phandle->rsc_client) |
| 64 | ret = sde_rsc_client_state_update(phandle->rsc_client, |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 65 | rsc_state, NULL, -1); |
Veera Sundaram Sankaran | 479defc | 2017-04-28 15:33:54 -0700 | [diff] [blame^] | 66 | |
| 67 | return ret; |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 68 | } |
| 69 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 70 | struct sde_power_client *sde_power_client_create( |
| 71 | struct sde_power_handle *phandle, char *client_name) |
| 72 | { |
| 73 | struct sde_power_client *client; |
| 74 | static u32 id; |
| 75 | |
| 76 | if (!client_name || !phandle) { |
| 77 | pr_err("client name is null or invalid power data\n"); |
| 78 | return ERR_PTR(-EINVAL); |
| 79 | } |
| 80 | |
| 81 | client = kzalloc(sizeof(struct sde_power_client), GFP_KERNEL); |
| 82 | if (!client) |
| 83 | return ERR_PTR(-ENOMEM); |
| 84 | |
| 85 | mutex_lock(&phandle->phandle_lock); |
| 86 | strlcpy(client->name, client_name, MAX_CLIENT_NAME_LEN); |
| 87 | client->usecase_ndx = VOTE_INDEX_DISABLE; |
| 88 | client->id = id; |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 89 | client->active = true; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 90 | pr_debug("client %s created:%pK id :%d\n", client_name, |
| 91 | client, id); |
| 92 | id++; |
| 93 | list_add(&client->list, &phandle->power_client_clist); |
| 94 | mutex_unlock(&phandle->phandle_lock); |
| 95 | |
| 96 | return client; |
| 97 | } |
| 98 | |
| 99 | void sde_power_client_destroy(struct sde_power_handle *phandle, |
| 100 | struct sde_power_client *client) |
| 101 | { |
| 102 | if (!client || !phandle) { |
| 103 | pr_err("reg bus vote: invalid client handle\n"); |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 104 | } else if (!client->active) { |
| 105 | pr_err("sde power deinit already done\n"); |
| 106 | kfree(client); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 107 | } else { |
| 108 | pr_debug("bus vote client %s destroyed:%pK id:%u\n", |
| 109 | client->name, client, client->id); |
| 110 | mutex_lock(&phandle->phandle_lock); |
| 111 | list_del_init(&client->list); |
| 112 | mutex_unlock(&phandle->phandle_lock); |
| 113 | kfree(client); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | static int sde_power_parse_dt_supply(struct platform_device *pdev, |
| 118 | struct dss_module_power *mp) |
| 119 | { |
| 120 | int i = 0, rc = 0; |
| 121 | u32 tmp = 0; |
| 122 | struct device_node *of_node = NULL, *supply_root_node = NULL; |
| 123 | struct device_node *supply_node = NULL; |
| 124 | |
| 125 | if (!pdev || !mp) { |
| 126 | pr_err("invalid input param pdev:%pK mp:%pK\n", pdev, mp); |
| 127 | return -EINVAL; |
| 128 | } |
| 129 | |
| 130 | of_node = pdev->dev.of_node; |
| 131 | |
| 132 | mp->num_vreg = 0; |
| 133 | supply_root_node = of_get_child_by_name(of_node, |
| 134 | "qcom,platform-supply-entries"); |
| 135 | if (!supply_root_node) { |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 136 | pr_debug("no supply entry present\n"); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 137 | return rc; |
| 138 | } |
| 139 | |
| 140 | for_each_child_of_node(supply_root_node, supply_node) |
| 141 | mp->num_vreg++; |
| 142 | |
| 143 | if (mp->num_vreg == 0) { |
| 144 | pr_debug("no vreg\n"); |
| 145 | return rc; |
| 146 | } |
| 147 | |
| 148 | pr_debug("vreg found. count=%d\n", mp->num_vreg); |
| 149 | mp->vreg_config = devm_kzalloc(&pdev->dev, sizeof(struct dss_vreg) * |
| 150 | mp->num_vreg, GFP_KERNEL); |
| 151 | if (!mp->vreg_config) { |
| 152 | rc = -ENOMEM; |
| 153 | return rc; |
| 154 | } |
| 155 | |
| 156 | for_each_child_of_node(supply_root_node, supply_node) { |
| 157 | |
| 158 | const char *st = NULL; |
| 159 | |
| 160 | rc = of_property_read_string(supply_node, |
| 161 | "qcom,supply-name", &st); |
| 162 | if (rc) { |
| 163 | pr_err("error reading name. rc=%d\n", rc); |
| 164 | goto error; |
| 165 | } |
| 166 | |
| 167 | strlcpy(mp->vreg_config[i].vreg_name, st, |
| 168 | sizeof(mp->vreg_config[i].vreg_name)); |
| 169 | |
| 170 | rc = of_property_read_u32(supply_node, |
| 171 | "qcom,supply-min-voltage", &tmp); |
| 172 | if (rc) { |
| 173 | pr_err("error reading min volt. rc=%d\n", rc); |
| 174 | goto error; |
| 175 | } |
| 176 | mp->vreg_config[i].min_voltage = tmp; |
| 177 | |
| 178 | rc = of_property_read_u32(supply_node, |
| 179 | "qcom,supply-max-voltage", &tmp); |
| 180 | if (rc) { |
| 181 | pr_err("error reading max volt. rc=%d\n", rc); |
| 182 | goto error; |
| 183 | } |
| 184 | mp->vreg_config[i].max_voltage = tmp; |
| 185 | |
| 186 | rc = of_property_read_u32(supply_node, |
| 187 | "qcom,supply-enable-load", &tmp); |
| 188 | if (rc) { |
| 189 | pr_err("error reading enable load. rc=%d\n", rc); |
| 190 | goto error; |
| 191 | } |
| 192 | mp->vreg_config[i].enable_load = tmp; |
| 193 | |
| 194 | rc = of_property_read_u32(supply_node, |
| 195 | "qcom,supply-disable-load", &tmp); |
| 196 | if (rc) { |
| 197 | pr_err("error reading disable load. rc=%d\n", rc); |
| 198 | goto error; |
| 199 | } |
| 200 | mp->vreg_config[i].disable_load = tmp; |
| 201 | |
| 202 | rc = of_property_read_u32(supply_node, |
| 203 | "qcom,supply-pre-on-sleep", &tmp); |
| 204 | if (rc) |
| 205 | pr_debug("error reading supply pre sleep value. rc=%d\n", |
| 206 | rc); |
| 207 | |
| 208 | mp->vreg_config[i].pre_on_sleep = (!rc ? tmp : 0); |
| 209 | |
| 210 | rc = of_property_read_u32(supply_node, |
| 211 | "qcom,supply-pre-off-sleep", &tmp); |
| 212 | if (rc) |
| 213 | pr_debug("error reading supply pre sleep value. rc=%d\n", |
| 214 | rc); |
| 215 | |
| 216 | mp->vreg_config[i].pre_off_sleep = (!rc ? tmp : 0); |
| 217 | |
| 218 | rc = of_property_read_u32(supply_node, |
| 219 | "qcom,supply-post-on-sleep", &tmp); |
| 220 | if (rc) |
| 221 | pr_debug("error reading supply post sleep value. rc=%d\n", |
| 222 | rc); |
| 223 | |
| 224 | mp->vreg_config[i].post_on_sleep = (!rc ? tmp : 0); |
| 225 | |
| 226 | rc = of_property_read_u32(supply_node, |
| 227 | "qcom,supply-post-off-sleep", &tmp); |
| 228 | if (rc) |
| 229 | pr_debug("error reading supply post sleep value. rc=%d\n", |
| 230 | rc); |
| 231 | |
| 232 | mp->vreg_config[i].post_off_sleep = (!rc ? tmp : 0); |
| 233 | |
| 234 | pr_debug("%s min=%d, max=%d, enable=%d, disable=%d, preonsleep=%d, postonsleep=%d, preoffsleep=%d, postoffsleep=%d\n", |
| 235 | mp->vreg_config[i].vreg_name, |
| 236 | mp->vreg_config[i].min_voltage, |
| 237 | mp->vreg_config[i].max_voltage, |
| 238 | mp->vreg_config[i].enable_load, |
| 239 | mp->vreg_config[i].disable_load, |
| 240 | mp->vreg_config[i].pre_on_sleep, |
| 241 | mp->vreg_config[i].post_on_sleep, |
| 242 | mp->vreg_config[i].pre_off_sleep, |
| 243 | mp->vreg_config[i].post_off_sleep); |
| 244 | ++i; |
| 245 | |
| 246 | rc = 0; |
| 247 | } |
| 248 | |
| 249 | return rc; |
| 250 | |
| 251 | error: |
| 252 | if (mp->vreg_config) { |
| 253 | devm_kfree(&pdev->dev, mp->vreg_config); |
| 254 | mp->vreg_config = NULL; |
| 255 | mp->num_vreg = 0; |
| 256 | } |
| 257 | |
| 258 | return rc; |
| 259 | } |
| 260 | |
| 261 | static int sde_power_parse_dt_clock(struct platform_device *pdev, |
| 262 | struct dss_module_power *mp) |
| 263 | { |
| 264 | u32 i = 0, rc = 0; |
| 265 | const char *clock_name; |
Kalyan Thota | 8f72792 | 2016-10-28 19:09:03 +0530 | [diff] [blame] | 266 | u32 clock_rate = 0; |
| 267 | u32 clock_max_rate = 0; |
| 268 | int num_clk = 0; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 269 | |
| 270 | if (!pdev || !mp) { |
| 271 | pr_err("invalid input param pdev:%pK mp:%pK\n", pdev, mp); |
| 272 | return -EINVAL; |
| 273 | } |
| 274 | |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 275 | mp->num_clk = 0; |
| 276 | num_clk = of_property_count_strings(pdev->dev.of_node, |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 277 | "clock-names"); |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 278 | if (num_clk <= 0) { |
| 279 | pr_debug("clocks are not defined\n"); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 280 | goto clk_err; |
| 281 | } |
| 282 | |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 283 | mp->num_clk = num_clk; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 284 | mp->clk_config = devm_kzalloc(&pdev->dev, |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 285 | sizeof(struct dss_clk) * num_clk, GFP_KERNEL); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 286 | if (!mp->clk_config) { |
| 287 | rc = -ENOMEM; |
| 288 | mp->num_clk = 0; |
| 289 | goto clk_err; |
| 290 | } |
| 291 | |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 292 | for (i = 0; i < num_clk; i++) { |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 293 | of_property_read_string_index(pdev->dev.of_node, "clock-names", |
| 294 | i, &clock_name); |
| 295 | strlcpy(mp->clk_config[i].clk_name, clock_name, |
| 296 | sizeof(mp->clk_config[i].clk_name)); |
| 297 | |
| 298 | of_property_read_u32_index(pdev->dev.of_node, "clock-rate", |
| 299 | i, &clock_rate); |
| 300 | mp->clk_config[i].rate = clock_rate; |
| 301 | |
| 302 | if (!clock_rate) |
| 303 | mp->clk_config[i].type = DSS_CLK_AHB; |
| 304 | else |
| 305 | mp->clk_config[i].type = DSS_CLK_PCLK; |
Alan Kwong | 83b6cbe | 2016-09-17 20:08:37 -0400 | [diff] [blame] | 306 | |
| 307 | clock_max_rate = 0; |
| 308 | of_property_read_u32_index(pdev->dev.of_node, "clock-max-rate", |
| 309 | i, &clock_max_rate); |
| 310 | mp->clk_config[i].max_rate = clock_max_rate; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | clk_err: |
| 314 | return rc; |
| 315 | } |
| 316 | |
| 317 | #ifdef CONFIG_QCOM_BUS_SCALING |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 318 | |
| 319 | #define MAX_AXI_PORT_COUNT 3 |
| 320 | |
| 321 | static int _sde_power_data_bus_set_quota( |
| 322 | struct sde_power_data_bus_handle *pdbus, |
| 323 | u64 ab_quota_rt, u64 ab_quota_nrt, |
| 324 | u64 ib_quota_rt, u64 ib_quota_nrt) |
| 325 | { |
| 326 | int new_uc_idx; |
| 327 | u64 ab_quota[MAX_AXI_PORT_COUNT] = {0, 0}; |
| 328 | u64 ib_quota[MAX_AXI_PORT_COUNT] = {0, 0}; |
| 329 | int rc; |
| 330 | |
| 331 | if (pdbus->data_bus_hdl < 1) { |
| 332 | pr_err("invalid bus handle %d\n", pdbus->data_bus_hdl); |
| 333 | return -EINVAL; |
| 334 | } |
| 335 | |
| 336 | if (!ab_quota_rt && !ab_quota_nrt && !ib_quota_rt && !ib_quota_nrt) { |
| 337 | new_uc_idx = 0; |
| 338 | } else { |
| 339 | int i; |
| 340 | struct msm_bus_vectors *vect = NULL; |
| 341 | struct msm_bus_scale_pdata *bw_table = |
| 342 | pdbus->data_bus_scale_table; |
| 343 | u32 nrt_axi_port_cnt = pdbus->nrt_axi_port_cnt; |
| 344 | u32 total_axi_port_cnt = pdbus->axi_port_cnt; |
| 345 | u32 rt_axi_port_cnt = total_axi_port_cnt - nrt_axi_port_cnt; |
| 346 | int match_cnt = 0; |
| 347 | |
| 348 | if (!bw_table || !total_axi_port_cnt || |
| 349 | total_axi_port_cnt > MAX_AXI_PORT_COUNT) { |
| 350 | pr_err("invalid input\n"); |
| 351 | return -EINVAL; |
| 352 | } |
| 353 | |
| 354 | if (pdbus->bus_channels) { |
| 355 | ib_quota_rt = div_u64(ib_quota_rt, |
| 356 | pdbus->bus_channels); |
| 357 | ib_quota_nrt = div_u64(ib_quota_nrt, |
| 358 | pdbus->bus_channels); |
| 359 | } |
| 360 | |
| 361 | if (nrt_axi_port_cnt) { |
| 362 | |
| 363 | ab_quota_rt = div_u64(ab_quota_rt, rt_axi_port_cnt); |
| 364 | ab_quota_nrt = div_u64(ab_quota_nrt, nrt_axi_port_cnt); |
| 365 | |
| 366 | for (i = 0; i < total_axi_port_cnt; i++) { |
| 367 | if (i < rt_axi_port_cnt) { |
| 368 | ab_quota[i] = ab_quota_rt; |
| 369 | ib_quota[i] = ib_quota_rt; |
| 370 | } else { |
| 371 | ab_quota[i] = ab_quota_nrt; |
| 372 | ib_quota[i] = ib_quota_nrt; |
| 373 | } |
| 374 | } |
| 375 | } else { |
| 376 | ab_quota[0] = div_u64(ab_quota_rt + ab_quota_nrt, |
| 377 | total_axi_port_cnt); |
| 378 | ib_quota[0] = ib_quota_rt + ib_quota_nrt; |
| 379 | |
| 380 | for (i = 1; i < total_axi_port_cnt; i++) { |
| 381 | ab_quota[i] = ab_quota[0]; |
| 382 | ib_quota[i] = ib_quota[0]; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | for (i = 0; i < total_axi_port_cnt; i++) { |
| 387 | vect = &bw_table->usecase |
| 388 | [pdbus->curr_bw_uc_idx].vectors[i]; |
| 389 | /* avoid performing updates for small changes */ |
| 390 | if ((ab_quota[i] == vect->ab) && |
| 391 | (ib_quota[i] == vect->ib)) |
| 392 | match_cnt++; |
| 393 | } |
| 394 | |
| 395 | if (match_cnt == total_axi_port_cnt) { |
| 396 | pr_debug("skip BW vote\n"); |
| 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | new_uc_idx = (pdbus->curr_bw_uc_idx % |
| 401 | (bw_table->num_usecases - 1)) + 1; |
| 402 | |
| 403 | for (i = 0; i < total_axi_port_cnt; i++) { |
| 404 | vect = &bw_table->usecase[new_uc_idx].vectors[i]; |
| 405 | vect->ab = ab_quota[i]; |
| 406 | vect->ib = ib_quota[i]; |
| 407 | |
| 408 | pr_debug("uc_idx=%d %s path idx=%d ab=%llu ib=%llu\n", |
| 409 | new_uc_idx, (i < rt_axi_port_cnt) ? "rt" : "nrt" |
| 410 | , i, vect->ab, vect->ib); |
| 411 | } |
| 412 | } |
| 413 | pdbus->curr_bw_uc_idx = new_uc_idx; |
| 414 | pdbus->ao_bw_uc_idx = new_uc_idx; |
| 415 | |
Dhaval Patel | 3fe015e | 2017-02-18 10:11:27 -0800 | [diff] [blame] | 416 | SDE_ATRACE_BEGIN("msm_bus_scale_req"); |
| 417 | rc = msm_bus_scale_client_update_request(pdbus->data_bus_hdl, |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 418 | new_uc_idx); |
Dhaval Patel | 3fe015e | 2017-02-18 10:11:27 -0800 | [diff] [blame] | 419 | SDE_ATRACE_END("msm_bus_scale_req"); |
| 420 | |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 421 | return rc; |
| 422 | } |
| 423 | |
| 424 | int sde_power_data_bus_set_quota(struct sde_power_handle *phandle, |
| 425 | struct sde_power_client *pclient, |
| 426 | int bus_client, u64 ab_quota, u64 ib_quota) |
| 427 | { |
| 428 | int rc = 0; |
| 429 | int i; |
| 430 | u64 total_ab_rt = 0, total_ib_rt = 0; |
| 431 | u64 total_ab_nrt = 0, total_ib_nrt = 0; |
| 432 | struct sde_power_client *client; |
| 433 | |
| 434 | if (!phandle || !pclient || |
| 435 | bus_client >= SDE_POWER_HANDLE_DATA_BUS_CLIENT_MAX) { |
| 436 | pr_err("invalid parameters\n"); |
| 437 | return -EINVAL; |
| 438 | } |
| 439 | |
| 440 | mutex_lock(&phandle->phandle_lock); |
| 441 | |
| 442 | pclient->ab[bus_client] = ab_quota; |
| 443 | pclient->ib[bus_client] = ib_quota; |
| 444 | trace_sde_perf_update_bus(bus_client, ab_quota, ib_quota); |
| 445 | |
| 446 | list_for_each_entry(client, &phandle->power_client_clist, list) { |
| 447 | for (i = 0; i < SDE_POWER_HANDLE_DATA_BUS_CLIENT_MAX; i++) { |
| 448 | if (i == SDE_POWER_HANDLE_DATA_BUS_CLIENT_NRT) { |
| 449 | total_ab_nrt += client->ab[i]; |
| 450 | total_ib_nrt += client->ib[i]; |
| 451 | } else { |
| 452 | total_ab_rt += client->ab[i]; |
| 453 | total_ib_rt = max(total_ib_rt, client->ib[i]); |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | rc = _sde_power_data_bus_set_quota(&phandle->data_bus_handle, |
| 459 | total_ab_rt, total_ab_nrt, |
| 460 | total_ib_rt, total_ib_nrt); |
| 461 | |
| 462 | mutex_unlock(&phandle->phandle_lock); |
| 463 | |
| 464 | return rc; |
| 465 | } |
| 466 | |
| 467 | static void sde_power_data_bus_unregister( |
| 468 | struct sde_power_data_bus_handle *pdbus) |
| 469 | { |
| 470 | if (pdbus->data_bus_hdl) { |
| 471 | msm_bus_scale_unregister_client(pdbus->data_bus_hdl); |
| 472 | pdbus->data_bus_hdl = 0; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | static int sde_power_data_bus_parse(struct platform_device *pdev, |
| 477 | struct sde_power_data_bus_handle *pdbus) |
| 478 | { |
| 479 | struct device_node *node; |
| 480 | int rc = 0; |
| 481 | int paths; |
| 482 | |
| 483 | pdbus->bus_channels = 1; |
| 484 | rc = of_property_read_u32(pdev->dev.of_node, |
| 485 | "qcom,sde-dram-channels", &pdbus->bus_channels); |
Alan Kwong | 1bd11be | 2017-01-10 10:31:39 -0500 | [diff] [blame] | 486 | if (rc) { |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 487 | pr_debug("number of channels property not specified\n"); |
Alan Kwong | 1bd11be | 2017-01-10 10:31:39 -0500 | [diff] [blame] | 488 | rc = 0; |
| 489 | } |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 490 | |
| 491 | pdbus->nrt_axi_port_cnt = 0; |
| 492 | rc = of_property_read_u32(pdev->dev.of_node, |
| 493 | "qcom,sde-num-nrt-paths", |
| 494 | &pdbus->nrt_axi_port_cnt); |
Alan Kwong | 1bd11be | 2017-01-10 10:31:39 -0500 | [diff] [blame] | 495 | if (rc) { |
| 496 | pr_debug("number of axi port property not specified\n"); |
| 497 | rc = 0; |
| 498 | } |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 499 | |
| 500 | node = of_get_child_by_name(pdev->dev.of_node, "qcom,sde-data-bus"); |
| 501 | if (node) { |
| 502 | rc = of_property_read_u32(node, |
| 503 | "qcom,msm-bus,num-paths", &paths); |
| 504 | if (rc) { |
| 505 | pr_err("Error. qcom,msm-bus,num-paths not found\n"); |
| 506 | return rc; |
| 507 | } |
| 508 | pdbus->axi_port_cnt = paths; |
| 509 | |
| 510 | pdbus->data_bus_scale_table = |
| 511 | msm_bus_pdata_from_node(pdev, node); |
| 512 | if (IS_ERR_OR_NULL(pdbus->data_bus_scale_table)) { |
| 513 | pr_err("reg bus handle parsing failed\n"); |
| 514 | rc = PTR_ERR(pdbus->data_bus_scale_table); |
Dhaval Patel | 5398f60 | 2017-03-25 18:25:18 -0700 | [diff] [blame] | 515 | if (!pdbus->data_bus_scale_table) |
| 516 | rc = -EINVAL; |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 517 | goto end; |
| 518 | } |
| 519 | pdbus->data_bus_hdl = msm_bus_scale_register_client( |
| 520 | pdbus->data_bus_scale_table); |
| 521 | if (!pdbus->data_bus_hdl) { |
| 522 | pr_err("data_bus_client register failed\n"); |
| 523 | rc = -EINVAL; |
| 524 | goto end; |
| 525 | } |
| 526 | pr_debug("register data_bus_hdl=%x\n", pdbus->data_bus_hdl); |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | end: |
| 530 | return rc; |
| 531 | } |
| 532 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 533 | static int sde_power_reg_bus_parse(struct platform_device *pdev, |
| 534 | struct sde_power_handle *phandle) |
| 535 | { |
| 536 | struct device_node *node; |
| 537 | struct msm_bus_scale_pdata *bus_scale_table; |
| 538 | int rc = 0; |
| 539 | |
| 540 | node = of_get_child_by_name(pdev->dev.of_node, "qcom,sde-reg-bus"); |
| 541 | if (node) { |
| 542 | bus_scale_table = msm_bus_pdata_from_node(pdev, node); |
| 543 | if (IS_ERR_OR_NULL(bus_scale_table)) { |
| 544 | pr_err("reg bus handle parsing failed\n"); |
| 545 | rc = PTR_ERR(bus_scale_table); |
Dhaval Patel | 5398f60 | 2017-03-25 18:25:18 -0700 | [diff] [blame] | 546 | if (!bus_scale_table) |
| 547 | rc = -EINVAL; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 548 | goto end; |
| 549 | } |
| 550 | phandle->reg_bus_hdl = msm_bus_scale_register_client( |
| 551 | bus_scale_table); |
| 552 | if (!phandle->reg_bus_hdl) { |
| 553 | pr_err("reg_bus_client register failed\n"); |
| 554 | rc = -EINVAL; |
| 555 | goto end; |
| 556 | } |
| 557 | pr_debug("register reg_bus_hdl=%x\n", phandle->reg_bus_hdl); |
| 558 | } |
| 559 | |
| 560 | end: |
| 561 | return rc; |
| 562 | } |
| 563 | |
| 564 | static void sde_power_reg_bus_unregister(u32 reg_bus_hdl) |
| 565 | { |
| 566 | if (reg_bus_hdl) |
| 567 | msm_bus_scale_unregister_client(reg_bus_hdl); |
| 568 | } |
| 569 | |
Dhaval Patel | 60c2506 | 2017-02-21 17:44:05 -0800 | [diff] [blame] | 570 | static int sde_power_data_bus_update(struct sde_power_data_bus_handle *pdbus, |
| 571 | bool enable) |
| 572 | { |
| 573 | int rc = 0; |
| 574 | u64 ab_quota_rt, ab_quota_nrt; |
| 575 | u64 ib_quota_rt, ib_quota_nrt; |
| 576 | |
| 577 | ab_quota_rt = ab_quota_nrt = enable ? |
| 578 | SDE_POWER_HANDLE_ENABLE_BUS_AB_QUOTA : |
| 579 | SDE_POWER_HANDLE_DISABLE_BUS_AB_QUOTA; |
| 580 | ib_quota_rt = ib_quota_nrt = enable ? |
| 581 | SDE_POWER_HANDLE_ENABLE_BUS_IB_QUOTA : |
| 582 | SDE_POWER_HANDLE_DISABLE_BUS_IB_QUOTA; |
| 583 | |
| 584 | if (pdbus->data_bus_hdl) |
| 585 | rc = _sde_power_data_bus_set_quota(pdbus, ab_quota_rt, |
| 586 | ab_quota_nrt, ib_quota_rt, ib_quota_nrt); |
| 587 | |
| 588 | if (rc) |
| 589 | pr_err("failed to set data bus vote rc=%d enable:%d\n", |
| 590 | rc, enable); |
| 591 | |
| 592 | return rc; |
| 593 | } |
| 594 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 595 | static int sde_power_reg_bus_update(u32 reg_bus_hdl, u32 usecase_ndx) |
| 596 | { |
| 597 | int rc = 0; |
| 598 | |
| 599 | if (reg_bus_hdl) |
| 600 | rc = msm_bus_scale_client_update_request(reg_bus_hdl, |
| 601 | usecase_ndx); |
| 602 | if (rc) |
| 603 | pr_err("failed to set reg bus vote rc=%d\n", rc); |
| 604 | |
| 605 | return rc; |
| 606 | } |
| 607 | #else |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 608 | static int sde_power_data_bus_parse(struct platform_device *pdev, |
| 609 | struct sde_power_data_bus_handle *pdbus) |
| 610 | { |
| 611 | return 0; |
| 612 | } |
| 613 | |
| 614 | static void sde_power_data_bus_unregister( |
| 615 | struct sde_power_data_bus_handle *pdbus) |
| 616 | { |
| 617 | } |
| 618 | |
| 619 | int sde_power_data_bus_set_quota(struct sde_power_handle *phandle, |
| 620 | struct sde_power_client *pclient, |
| 621 | int bus_client, u64 ab_quota, u64 ib_quota) |
| 622 | { |
| 623 | return 0; |
| 624 | } |
| 625 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 626 | static int sde_power_reg_bus_parse(struct platform_device *pdev, |
| 627 | struct sde_power_handle *phandle) |
| 628 | { |
| 629 | return 0; |
| 630 | } |
| 631 | |
| 632 | static void sde_power_reg_bus_unregister(u32 reg_bus_hdl) |
| 633 | { |
| 634 | } |
| 635 | |
| 636 | static int sde_power_reg_bus_update(u32 reg_bus_hdl, u32 usecase_ndx) |
| 637 | { |
| 638 | return 0; |
| 639 | } |
Dhaval Patel | 60c2506 | 2017-02-21 17:44:05 -0800 | [diff] [blame] | 640 | |
| 641 | static int sde_power_data_bus_update(struct sde_power_data_bus_handle *pdbus, |
| 642 | bool enable) |
| 643 | { |
| 644 | return 0; |
| 645 | } |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 646 | #endif |
| 647 | |
| 648 | int sde_power_resource_init(struct platform_device *pdev, |
| 649 | struct sde_power_handle *phandle) |
| 650 | { |
| 651 | int rc = 0; |
| 652 | struct dss_module_power *mp; |
| 653 | |
| 654 | if (!phandle || !pdev) { |
| 655 | pr_err("invalid input param\n"); |
| 656 | rc = -EINVAL; |
| 657 | goto end; |
| 658 | } |
| 659 | mp = &phandle->mp; |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 660 | phandle->dev = &pdev->dev; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 661 | |
| 662 | rc = sde_power_parse_dt_clock(pdev, mp); |
| 663 | if (rc) { |
| 664 | pr_err("device clock parsing failed\n"); |
| 665 | goto end; |
| 666 | } |
| 667 | |
| 668 | rc = sde_power_parse_dt_supply(pdev, mp); |
| 669 | if (rc) { |
| 670 | pr_err("device vreg supply parsing failed\n"); |
| 671 | goto parse_vreg_err; |
| 672 | } |
| 673 | |
| 674 | rc = msm_dss_config_vreg(&pdev->dev, |
| 675 | mp->vreg_config, mp->num_vreg, 1); |
| 676 | if (rc) { |
| 677 | pr_err("vreg config failed rc=%d\n", rc); |
| 678 | goto vreg_err; |
| 679 | } |
| 680 | |
| 681 | rc = msm_dss_get_clk(&pdev->dev, mp->clk_config, mp->num_clk); |
| 682 | if (rc) { |
| 683 | pr_err("clock get failed rc=%d\n", rc); |
| 684 | goto clk_err; |
| 685 | } |
| 686 | |
| 687 | rc = msm_dss_clk_set_rate(mp->clk_config, mp->num_clk); |
| 688 | if (rc) { |
| 689 | pr_err("clock set rate failed rc=%d\n", rc); |
| 690 | goto bus_err; |
| 691 | } |
| 692 | |
| 693 | rc = sde_power_reg_bus_parse(pdev, phandle); |
| 694 | if (rc) { |
| 695 | pr_err("register bus parse failed rc=%d\n", rc); |
| 696 | goto bus_err; |
| 697 | } |
| 698 | |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 699 | rc = sde_power_data_bus_parse(pdev, &phandle->data_bus_handle); |
| 700 | if (rc) { |
| 701 | pr_err("register data bus parse failed rc=%d\n", rc); |
| 702 | goto data_bus_err; |
| 703 | } |
| 704 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 705 | INIT_LIST_HEAD(&phandle->power_client_clist); |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 706 | INIT_LIST_HEAD(&phandle->event_list); |
| 707 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 708 | phandle->rsc_client = NULL; |
| 709 | phandle->rsc_client_init = false; |
| 710 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 711 | mutex_init(&phandle->phandle_lock); |
| 712 | |
| 713 | return rc; |
| 714 | |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 715 | data_bus_err: |
| 716 | sde_power_reg_bus_unregister(phandle->reg_bus_hdl); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 717 | bus_err: |
| 718 | msm_dss_put_clk(mp->clk_config, mp->num_clk); |
| 719 | clk_err: |
| 720 | msm_dss_config_vreg(&pdev->dev, mp->vreg_config, mp->num_vreg, 0); |
| 721 | vreg_err: |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 722 | if (mp->vreg_config) |
| 723 | devm_kfree(&pdev->dev, mp->vreg_config); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 724 | mp->num_vreg = 0; |
| 725 | parse_vreg_err: |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 726 | if (mp->clk_config) |
| 727 | devm_kfree(&pdev->dev, mp->clk_config); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 728 | mp->num_clk = 0; |
| 729 | end: |
| 730 | return rc; |
| 731 | } |
| 732 | |
| 733 | void sde_power_resource_deinit(struct platform_device *pdev, |
| 734 | struct sde_power_handle *phandle) |
| 735 | { |
| 736 | struct dss_module_power *mp; |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 737 | struct sde_power_client *curr_client, *next_client; |
| 738 | struct sde_power_event *curr_event, *next_event; |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 739 | |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 740 | if (!phandle || !pdev) { |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 741 | pr_err("invalid input param\n"); |
| 742 | return; |
| 743 | } |
| 744 | mp = &phandle->mp; |
| 745 | |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 746 | mutex_lock(&phandle->phandle_lock); |
| 747 | list_for_each_entry_safe(curr_client, next_client, |
| 748 | &phandle->power_client_clist, list) { |
| 749 | pr_err("cliend:%s-%d still registered with refcount:%d\n", |
| 750 | curr_client->name, curr_client->id, |
| 751 | curr_client->refcount); |
| 752 | curr_client->active = false; |
| 753 | list_del(&curr_client->list); |
| 754 | } |
| 755 | |
| 756 | list_for_each_entry_safe(curr_event, next_event, |
| 757 | &phandle->event_list, list) { |
| 758 | pr_err("event:%d, client:%s still registered\n", |
| 759 | curr_event->event_type, |
| 760 | curr_event->client_name); |
| 761 | curr_event->active = false; |
| 762 | list_del(&curr_event->list); |
| 763 | } |
| 764 | mutex_unlock(&phandle->phandle_lock); |
| 765 | |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 766 | sde_power_data_bus_unregister(&phandle->data_bus_handle); |
| 767 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 768 | sde_power_reg_bus_unregister(phandle->reg_bus_hdl); |
| 769 | |
| 770 | msm_dss_put_clk(mp->clk_config, mp->num_clk); |
| 771 | |
| 772 | msm_dss_config_vreg(&pdev->dev, mp->vreg_config, mp->num_vreg, 0); |
| 773 | |
Dhaval Patel | cd78b8a | 2016-10-11 10:26:07 -0700 | [diff] [blame] | 774 | if (mp->clk_config) |
| 775 | devm_kfree(&pdev->dev, mp->clk_config); |
| 776 | |
| 777 | if (mp->vreg_config) |
| 778 | devm_kfree(&pdev->dev, mp->vreg_config); |
| 779 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 780 | mp->num_vreg = 0; |
| 781 | mp->num_clk = 0; |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 782 | |
| 783 | if (phandle->rsc_client) |
| 784 | sde_rsc_client_destroy(phandle->rsc_client); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 785 | } |
| 786 | |
| 787 | int sde_power_resource_enable(struct sde_power_handle *phandle, |
| 788 | struct sde_power_client *pclient, bool enable) |
| 789 | { |
| 790 | int rc = 0; |
| 791 | bool changed = false; |
| 792 | u32 max_usecase_ndx = VOTE_INDEX_DISABLE, prev_usecase_ndx; |
| 793 | struct sde_power_client *client; |
| 794 | struct dss_module_power *mp; |
| 795 | |
| 796 | if (!phandle || !pclient) { |
| 797 | pr_err("invalid input argument\n"); |
| 798 | return -EINVAL; |
| 799 | } |
| 800 | |
| 801 | mp = &phandle->mp; |
| 802 | |
| 803 | mutex_lock(&phandle->phandle_lock); |
| 804 | if (enable) |
| 805 | pclient->refcount++; |
| 806 | else if (pclient->refcount) |
| 807 | pclient->refcount--; |
| 808 | |
| 809 | if (pclient->refcount) |
| 810 | pclient->usecase_ndx = VOTE_INDEX_LOW; |
| 811 | else |
| 812 | pclient->usecase_ndx = VOTE_INDEX_DISABLE; |
| 813 | |
| 814 | list_for_each_entry(client, &phandle->power_client_clist, list) { |
| 815 | if (client->usecase_ndx < VOTE_INDEX_MAX && |
| 816 | client->usecase_ndx > max_usecase_ndx) |
| 817 | max_usecase_ndx = client->usecase_ndx; |
| 818 | } |
| 819 | |
| 820 | if (phandle->current_usecase_ndx != max_usecase_ndx) { |
| 821 | changed = true; |
| 822 | prev_usecase_ndx = phandle->current_usecase_ndx; |
| 823 | phandle->current_usecase_ndx = max_usecase_ndx; |
| 824 | } |
| 825 | |
| 826 | pr_debug("%pS: changed=%d current idx=%d request client %s id:%u enable:%d refcount:%d\n", |
| 827 | __builtin_return_address(0), changed, max_usecase_ndx, |
| 828 | pclient->name, pclient->id, enable, pclient->refcount); |
| 829 | |
| 830 | if (!changed) |
| 831 | goto end; |
| 832 | |
| 833 | if (enable) { |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 834 | sde_power_event_trigger_locked(phandle, |
| 835 | SDE_POWER_EVENT_PRE_ENABLE); |
| 836 | |
Dhaval Patel | 60c2506 | 2017-02-21 17:44:05 -0800 | [diff] [blame] | 837 | rc = sde_power_data_bus_update(&phandle->data_bus_handle, |
| 838 | enable); |
| 839 | if (rc) { |
| 840 | pr_err("failed to set data bus vote rc=%d\n", rc); |
| 841 | goto data_bus_hdl_err; |
| 842 | } |
| 843 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 844 | if (!phandle->rsc_client_init) { |
| 845 | rc = msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg, |
| 846 | enable); |
| 847 | if (rc) { |
| 848 | pr_err("failed to enable vregs rc=%d\n", rc); |
| 849 | goto vreg_err; |
| 850 | } |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | rc = sde_power_reg_bus_update(phandle->reg_bus_hdl, |
| 854 | max_usecase_ndx); |
| 855 | if (rc) { |
| 856 | pr_err("failed to set reg bus vote rc=%d\n", rc); |
| 857 | goto reg_bus_hdl_err; |
| 858 | } |
| 859 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 860 | rc = sde_power_rsc_update(phandle, true); |
| 861 | if (rc) { |
| 862 | pr_err("failed to update rsc\n"); |
| 863 | goto rsc_err; |
| 864 | } |
| 865 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 866 | rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, enable); |
| 867 | if (rc) { |
| 868 | pr_err("clock enable failed rc:%d\n", rc); |
| 869 | goto clk_err; |
| 870 | } |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 871 | |
| 872 | sde_power_event_trigger_locked(phandle, |
| 873 | SDE_POWER_EVENT_POST_ENABLE); |
| 874 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 875 | } else { |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 876 | sde_power_event_trigger_locked(phandle, |
| 877 | SDE_POWER_EVENT_PRE_DISABLE); |
| 878 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 879 | msm_dss_enable_clk(mp->clk_config, mp->num_clk, enable); |
| 880 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 881 | sde_power_rsc_update(phandle, false); |
| 882 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 883 | sde_power_reg_bus_update(phandle->reg_bus_hdl, |
| 884 | max_usecase_ndx); |
| 885 | |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 886 | if (!phandle->rsc_client_init) |
| 887 | msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg, |
| 888 | enable); |
Dhaval Patel | 60c2506 | 2017-02-21 17:44:05 -0800 | [diff] [blame] | 889 | sde_power_data_bus_update(&phandle->data_bus_handle, enable); |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 890 | |
| 891 | sde_power_event_trigger_locked(phandle, |
| 892 | SDE_POWER_EVENT_POST_DISABLE); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 893 | } |
| 894 | |
| 895 | end: |
| 896 | mutex_unlock(&phandle->phandle_lock); |
| 897 | return rc; |
| 898 | |
| 899 | clk_err: |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 900 | sde_power_rsc_update(phandle, false); |
| 901 | rsc_err: |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 902 | sde_power_reg_bus_update(phandle->reg_bus_hdl, prev_usecase_ndx); |
| 903 | reg_bus_hdl_err: |
Veera Sundaram Sankaran | 38318f1 | 2017-03-24 15:54:21 -0700 | [diff] [blame] | 904 | if (!phandle->rsc_client_init) |
| 905 | msm_dss_enable_vreg(mp->vreg_config, mp->num_vreg, 0); |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 906 | vreg_err: |
Dhaval Patel | 60c2506 | 2017-02-21 17:44:05 -0800 | [diff] [blame] | 907 | sde_power_data_bus_update(&phandle->data_bus_handle, 0); |
| 908 | data_bus_hdl_err: |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 909 | phandle->current_usecase_ndx = prev_usecase_ndx; |
| 910 | mutex_unlock(&phandle->phandle_lock); |
| 911 | return rc; |
| 912 | } |
| 913 | |
| 914 | int sde_power_clk_set_rate(struct sde_power_handle *phandle, char *clock_name, |
| 915 | u64 rate) |
| 916 | { |
| 917 | int i, rc = -EINVAL; |
| 918 | struct dss_module_power *mp; |
| 919 | |
| 920 | if (!phandle) { |
| 921 | pr_err("invalid input power handle\n"); |
| 922 | return -EINVAL; |
| 923 | } |
| 924 | mp = &phandle->mp; |
| 925 | |
| 926 | for (i = 0; i < mp->num_clk; i++) { |
| 927 | if (!strcmp(mp->clk_config[i].clk_name, clock_name)) { |
Alan Kwong | 83b6cbe | 2016-09-17 20:08:37 -0400 | [diff] [blame] | 928 | if (mp->clk_config[i].max_rate && |
| 929 | (rate > mp->clk_config[i].max_rate)) |
| 930 | rate = mp->clk_config[i].max_rate; |
| 931 | |
Dhaval Patel | 480dc52 | 2016-07-27 18:36:59 -0700 | [diff] [blame] | 932 | mp->clk_config[i].rate = rate; |
| 933 | rc = msm_dss_clk_set_rate(mp->clk_config, mp->num_clk); |
| 934 | break; |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | return rc; |
| 939 | } |
| 940 | |
| 941 | u64 sde_power_clk_get_rate(struct sde_power_handle *phandle, char *clock_name) |
| 942 | { |
| 943 | int i; |
| 944 | struct dss_module_power *mp; |
| 945 | u64 rate = -EINVAL; |
| 946 | |
| 947 | if (!phandle) { |
| 948 | pr_err("invalid input power handle\n"); |
| 949 | return -EINVAL; |
| 950 | } |
| 951 | mp = &phandle->mp; |
| 952 | |
| 953 | for (i = 0; i < mp->num_clk; i++) { |
| 954 | if (!strcmp(mp->clk_config[i].clk_name, clock_name)) { |
| 955 | rate = clk_get_rate(mp->clk_config[i].clk); |
| 956 | break; |
| 957 | } |
| 958 | } |
| 959 | |
| 960 | return rate; |
| 961 | } |
Alan Kwong | 67a3f79 | 2016-11-01 23:16:53 -0400 | [diff] [blame] | 962 | |
| 963 | u64 sde_power_clk_get_max_rate(struct sde_power_handle *phandle, |
| 964 | char *clock_name) |
| 965 | { |
| 966 | int i; |
| 967 | struct dss_module_power *mp; |
| 968 | u64 rate = 0; |
| 969 | |
| 970 | if (!phandle) { |
| 971 | pr_err("invalid input power handle\n"); |
| 972 | return 0; |
| 973 | } |
| 974 | mp = &phandle->mp; |
| 975 | |
| 976 | for (i = 0; i < mp->num_clk; i++) { |
| 977 | if (!strcmp(mp->clk_config[i].clk_name, clock_name)) { |
| 978 | rate = mp->clk_config[i].max_rate; |
| 979 | break; |
| 980 | } |
| 981 | } |
| 982 | |
| 983 | return rate; |
| 984 | } |
| 985 | |
| 986 | struct clk *sde_power_clk_get_clk(struct sde_power_handle *phandle, |
| 987 | char *clock_name) |
| 988 | { |
| 989 | int i; |
| 990 | struct dss_module_power *mp; |
| 991 | struct clk *clk = NULL; |
| 992 | |
| 993 | if (!phandle) { |
| 994 | pr_err("invalid input power handle\n"); |
| 995 | return 0; |
| 996 | } |
| 997 | mp = &phandle->mp; |
| 998 | |
| 999 | for (i = 0; i < mp->num_clk; i++) { |
| 1000 | if (!strcmp(mp->clk_config[i].clk_name, clock_name)) { |
| 1001 | clk = mp->clk_config[i].clk; |
| 1002 | break; |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | return clk; |
| 1007 | } |
Veera Sundaram Sankaran | 410d156 | 2017-03-24 14:48:13 -0700 | [diff] [blame] | 1008 | |
| 1009 | struct sde_power_event *sde_power_handle_register_event( |
| 1010 | struct sde_power_handle *phandle, |
| 1011 | u32 event_type, void (*cb_fnc)(u32 event_type, void *usr), |
| 1012 | void *usr, char *client_name) |
| 1013 | { |
| 1014 | struct sde_power_event *event; |
| 1015 | |
| 1016 | if (!phandle) { |
| 1017 | pr_err("invalid power handle\n"); |
| 1018 | return ERR_PTR(-EINVAL); |
| 1019 | } else if (!cb_fnc || !event_type) { |
| 1020 | pr_err("no callback fnc or event type\n"); |
| 1021 | return ERR_PTR(-EINVAL); |
| 1022 | } |
| 1023 | |
| 1024 | event = kzalloc(sizeof(struct sde_power_event), GFP_KERNEL); |
| 1025 | if (!event) |
| 1026 | return ERR_PTR(-ENOMEM); |
| 1027 | |
| 1028 | event->event_type = event_type; |
| 1029 | event->cb_fnc = cb_fnc; |
| 1030 | event->usr = usr; |
| 1031 | strlcpy(event->client_name, client_name, MAX_CLIENT_NAME_LEN); |
| 1032 | event->active = true; |
| 1033 | |
| 1034 | mutex_lock(&phandle->phandle_lock); |
| 1035 | list_add(&event->list, &phandle->event_list); |
| 1036 | mutex_unlock(&phandle->phandle_lock); |
| 1037 | |
| 1038 | return event; |
| 1039 | } |
| 1040 | |
| 1041 | void sde_power_handle_unregister_event( |
| 1042 | struct sde_power_handle *phandle, |
| 1043 | struct sde_power_event *event) |
| 1044 | { |
| 1045 | if (!phandle || !event) { |
| 1046 | pr_err("invalid phandle or event\n"); |
| 1047 | } else if (!event->active) { |
| 1048 | pr_err("power handle deinit already done\n"); |
| 1049 | kfree(event); |
| 1050 | } else { |
| 1051 | mutex_lock(&phandle->phandle_lock); |
| 1052 | list_del_init(&event->list); |
| 1053 | mutex_unlock(&phandle->phandle_lock); |
| 1054 | kfree(event); |
| 1055 | } |
| 1056 | } |