Naitik Bharadiya | a050874 | 2019-11-19 19:23:47 +0530 | [diff] [blame^] | 1 | /* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved. |
Pratap Nirujogi | 6e75991 | 2018-01-17 17:51:17 +0530 | [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 | #define pr_fmt(fmt) "CAM-SOC %s:%d " fmt, __func__, __LINE__ |
| 14 | #define NO_SET_RATE -1 |
| 15 | #define INIT_RATE -2 |
| 16 | |
| 17 | #ifdef CONFIG_CAM_SOC_API_DBG |
| 18 | #define CDBG(fmt, args...) pr_err(fmt, ##args) |
| 19 | #else |
| 20 | #define CDBG(fmt, args...) pr_debug(fmt, ##args) |
| 21 | #endif |
| 22 | |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/of_platform.h> |
| 26 | #include <linux/msm-bus.h> |
| 27 | #include <linux/clk/msm-clk.h> |
| 28 | #include "cam_soc_api.h" |
| 29 | |
| 30 | struct msm_cam_bus_pscale_data { |
| 31 | struct msm_bus_scale_pdata *pdata; |
| 32 | uint32_t bus_client; |
| 33 | uint32_t num_usecases; |
| 34 | uint32_t num_paths; |
| 35 | unsigned int vector_index; |
| 36 | bool dyn_vote; |
| 37 | struct mutex lock; |
| 38 | }; |
| 39 | |
| 40 | static struct msm_cam_bus_pscale_data g_cv[CAM_BUS_CLIENT_MAX]; |
| 41 | |
| 42 | |
| 43 | /* Get all clocks from DT */ |
| 44 | static int msm_camera_get_clk_info_internal(struct device *dev, |
| 45 | struct msm_cam_clk_info **clk_info, |
| 46 | struct clk ***clk_ptr, |
| 47 | size_t *num_clk) |
| 48 | { |
| 49 | int rc = 0; |
| 50 | size_t cnt, tmp; |
| 51 | uint32_t *rates, i = 0; |
| 52 | const char *clk_ctl = NULL; |
| 53 | bool clock_cntl_support = false; |
| 54 | struct device_node *of_node; |
| 55 | |
| 56 | of_node = dev->of_node; |
| 57 | |
| 58 | cnt = of_property_count_strings(of_node, "clock-names"); |
| 59 | if (cnt <= 0) { |
| 60 | pr_err("err: No clocks found in DT=%zu\n", cnt); |
| 61 | return -EINVAL; |
| 62 | } |
| 63 | |
| 64 | tmp = of_property_count_u32_elems(of_node, "qcom,clock-rates"); |
| 65 | if (tmp <= 0) { |
| 66 | pr_err("err: No clk rates device tree, count=%zu", tmp); |
| 67 | return -EINVAL; |
| 68 | } |
| 69 | |
| 70 | if (cnt != tmp) { |
| 71 | pr_err("err: clk name/rates mismatch, strings=%zu, rates=%zu\n", |
| 72 | cnt, tmp); |
| 73 | return -EINVAL; |
| 74 | } |
| 75 | |
| 76 | if (of_property_read_bool(of_node, "qcom,clock-cntl-support")) { |
| 77 | tmp = of_property_count_strings(of_node, |
| 78 | "qcom,clock-control"); |
| 79 | if (tmp <= 0) { |
| 80 | pr_err("err: control strings not found in DT count=%zu", |
| 81 | tmp); |
| 82 | return -EINVAL; |
| 83 | } |
| 84 | if (cnt != tmp) { |
| 85 | pr_err("err: controls mismatch, strings=%zu, ctl=%zu\n", |
| 86 | cnt, tmp); |
| 87 | return -EINVAL; |
| 88 | } |
| 89 | clock_cntl_support = true; |
| 90 | } |
| 91 | |
| 92 | *num_clk = cnt; |
| 93 | |
| 94 | *clk_info = devm_kcalloc(dev, cnt, |
| 95 | sizeof(struct msm_cam_clk_info), GFP_KERNEL); |
| 96 | if (!*clk_info) |
| 97 | return -ENOMEM; |
| 98 | |
| 99 | *clk_ptr = devm_kcalloc(dev, cnt, sizeof(struct clk *), |
| 100 | GFP_KERNEL); |
| 101 | if (!*clk_ptr) { |
| 102 | rc = -ENOMEM; |
| 103 | goto err1; |
| 104 | } |
| 105 | |
| 106 | rates = devm_kcalloc(dev, cnt, sizeof(long), GFP_KERNEL); |
| 107 | if (!rates) { |
| 108 | rc = -ENOMEM; |
| 109 | goto err2; |
| 110 | } |
| 111 | |
| 112 | rc = of_property_read_u32_array(of_node, "qcom,clock-rates", |
| 113 | rates, cnt); |
| 114 | if (rc < 0) { |
| 115 | pr_err("err: failed reading clock rates\n"); |
| 116 | rc = -EINVAL; |
| 117 | goto err3; |
| 118 | } |
| 119 | |
| 120 | for (i = 0; i < cnt; i++) { |
| 121 | rc = of_property_read_string_index(of_node, "clock-names", |
| 122 | i, &((*clk_info)[i].clk_name)); |
| 123 | if (rc < 0) { |
| 124 | pr_err("%s reading clock-name failed index %d\n", |
| 125 | __func__, i); |
| 126 | rc = -EINVAL; |
| 127 | goto err3; |
| 128 | } |
| 129 | |
| 130 | CDBG("dbg: clk-name[%d] = %s\n", i, (*clk_info)[i].clk_name); |
| 131 | if (clock_cntl_support) { |
| 132 | rc = of_property_read_string_index(of_node, |
| 133 | "qcom,clock-control", i, &clk_ctl); |
| 134 | if (rc < 0) { |
| 135 | pr_err("%s reading clock-control failed index %d\n", |
| 136 | __func__, i); |
| 137 | rc = -EINVAL; |
| 138 | goto err3; |
| 139 | } |
| 140 | |
| 141 | if (!strcmp(clk_ctl, "NO_SET_RATE")) |
| 142 | (*clk_info)[i].clk_rate = NO_SET_RATE; |
| 143 | else if (!strcmp(clk_ctl, "INIT_RATE")) |
| 144 | (*clk_info)[i].clk_rate = INIT_RATE; |
| 145 | else if (!strcmp(clk_ctl, "SET_RATE")) |
| 146 | (*clk_info)[i].clk_rate = rates[i]; |
| 147 | else { |
| 148 | pr_err("%s: error: clock control has invalid value\n", |
| 149 | __func__); |
| 150 | rc = -EBUSY; |
| 151 | goto err3; |
| 152 | } |
| 153 | } else |
| 154 | (*clk_info)[i].clk_rate = |
| 155 | (rates[i] == 0) ? (long)-1 : rates[i]; |
| 156 | |
| 157 | CDBG("dbg: clk-rate[%d] = rate: %ld\n", |
| 158 | i, (*clk_info)[i].clk_rate); |
| 159 | |
| 160 | (*clk_ptr)[i] = |
| 161 | devm_clk_get(dev, (*clk_info)[i].clk_name); |
| 162 | if (IS_ERR((*clk_ptr)[i])) { |
| 163 | rc = PTR_ERR((*clk_ptr)[i]); |
| 164 | goto err4; |
| 165 | } |
| 166 | CDBG("clk ptr[%d] :%pK\n", i, (*clk_ptr)[i]); |
| 167 | } |
| 168 | |
| 169 | devm_kfree(dev, rates); |
| 170 | return rc; |
| 171 | |
| 172 | err4: |
| 173 | if (i > 0) { |
| 174 | do { |
| 175 | devm_clk_put(dev, (*clk_ptr)[--i]); |
| 176 | } while (i); |
| 177 | } |
| 178 | err3: |
| 179 | devm_kfree(dev, rates); |
| 180 | err2: |
| 181 | devm_kfree(dev, *clk_ptr); |
| 182 | err1: |
| 183 | devm_kfree(dev, *clk_info); |
| 184 | return rc; |
| 185 | } |
| 186 | |
| 187 | /* Get all clocks from DT for I2C devices */ |
| 188 | int msm_camera_i2c_dev_get_clk_info(struct device *dev, |
| 189 | struct msm_cam_clk_info **clk_info, |
| 190 | struct clk ***clk_ptr, |
| 191 | size_t *num_clk) |
| 192 | { |
| 193 | int rc = 0; |
| 194 | |
| 195 | if (!dev || !clk_info || !clk_ptr || !num_clk) |
| 196 | return -EINVAL; |
| 197 | |
| 198 | rc = msm_camera_get_clk_info_internal(dev, clk_info, clk_ptr, num_clk); |
| 199 | return rc; |
| 200 | } |
| 201 | EXPORT_SYMBOL(msm_camera_i2c_dev_get_clk_info); |
| 202 | |
| 203 | /* Get all clocks from DT for platform devices */ |
| 204 | int msm_camera_get_clk_info(struct platform_device *pdev, |
| 205 | struct msm_cam_clk_info **clk_info, |
| 206 | struct clk ***clk_ptr, |
| 207 | size_t *num_clk) |
| 208 | { |
| 209 | int rc = 0; |
| 210 | |
Naitik Bharadiya | a050874 | 2019-11-19 19:23:47 +0530 | [diff] [blame^] | 211 | if (!pdev || (&pdev->dev == NULL) || !clk_info || !clk_ptr || !num_clk) |
Pratap Nirujogi | 6e75991 | 2018-01-17 17:51:17 +0530 | [diff] [blame] | 212 | return -EINVAL; |
| 213 | |
| 214 | rc = msm_camera_get_clk_info_internal(&pdev->dev, |
| 215 | clk_info, clk_ptr, num_clk); |
| 216 | return rc; |
| 217 | } |
| 218 | EXPORT_SYMBOL(msm_camera_get_clk_info); |
| 219 | |
| 220 | /* Get all clocks and multiple rates from DT */ |
| 221 | int msm_camera_get_clk_info_and_rates( |
| 222 | struct platform_device *pdev, |
| 223 | struct msm_cam_clk_info **pclk_info, |
| 224 | struct clk ***pclks, |
| 225 | uint32_t ***pclk_rates, |
| 226 | size_t *num_set, |
| 227 | size_t *num_clk) |
| 228 | { |
| 229 | int rc = 0, tmp_var, cnt, tmp; |
| 230 | int32_t i = 0, j = 0; |
| 231 | struct device_node *of_node; |
| 232 | uint32_t **rates; |
| 233 | struct clk **clks; |
| 234 | struct msm_cam_clk_info *clk_info; |
| 235 | |
| 236 | if (!pdev || !pclk_info || !num_clk |
| 237 | || !pclk_rates || !pclks || !num_set) |
| 238 | return -EINVAL; |
| 239 | |
| 240 | of_node = pdev->dev.of_node; |
| 241 | |
| 242 | cnt = of_property_count_strings(of_node, "clock-names"); |
| 243 | if (cnt <= 0) { |
| 244 | pr_err("err: No clocks found in DT=%d\n", cnt); |
| 245 | return -EINVAL; |
| 246 | } |
| 247 | |
| 248 | tmp = of_property_count_u32_elems(of_node, "qcom,clock-rates"); |
| 249 | if (tmp <= 0) { |
| 250 | pr_err("err: No clk rates device tree, count=%d\n", tmp); |
| 251 | return -EINVAL; |
| 252 | } |
| 253 | |
| 254 | if ((tmp % cnt) != 0) { |
| 255 | pr_err("err: clk name/rates mismatch, strings=%d, rates=%d\n", |
| 256 | cnt, tmp); |
| 257 | return -EINVAL; |
| 258 | } |
| 259 | |
| 260 | *num_clk = cnt; |
| 261 | *num_set = (tmp / cnt); |
| 262 | |
| 263 | clk_info = devm_kcalloc(&pdev->dev, cnt, |
| 264 | sizeof(struct msm_cam_clk_info), GFP_KERNEL); |
| 265 | if (!clk_info) |
| 266 | return -ENOMEM; |
| 267 | |
| 268 | clks = devm_kcalloc(&pdev->dev, cnt, sizeof(struct clk *), |
| 269 | GFP_KERNEL); |
| 270 | if (!clks) { |
| 271 | rc = -ENOMEM; |
| 272 | goto err1; |
| 273 | } |
| 274 | |
| 275 | rates = devm_kcalloc(&pdev->dev, *num_set, |
| 276 | sizeof(uint32_t *), GFP_KERNEL); |
| 277 | if (!rates) { |
| 278 | rc = -ENOMEM; |
| 279 | goto err2; |
| 280 | } |
| 281 | |
| 282 | for (i = 0; i < *num_set; i++) { |
| 283 | rates[i] = devm_kcalloc(&pdev->dev, *num_clk, |
| 284 | sizeof(uint32_t), GFP_KERNEL); |
| 285 | if (!rates[i] && (i > 0)) { |
| 286 | rc = -ENOMEM; |
| 287 | for (j = i - 1; j >= 0; j--) |
| 288 | devm_kfree(&pdev->dev, rates[j]); |
| 289 | goto err3; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | tmp_var = 0; |
| 294 | for (i = 0; i < *num_set; i++) { |
| 295 | for (j = 0; j < *num_clk; j++) { |
| 296 | rc = of_property_read_u32_index(of_node, |
| 297 | "qcom,clock-rates", tmp_var++, &rates[i][j]); |
| 298 | if (rc < 0) { |
| 299 | pr_err("err: failed reading clock rates\n"); |
| 300 | rc = -EINVAL; |
| 301 | goto err4; |
| 302 | } |
| 303 | CDBG("Clock rate idx %d idx %d value %d\n", |
| 304 | i, j, rates[i][j]); |
| 305 | } |
| 306 | } |
| 307 | for (i = 0; i < *num_clk; i++) { |
| 308 | rc = of_property_read_string_index(of_node, "clock-names", |
| 309 | i, &clk_info[i].clk_name); |
| 310 | if (rc < 0) { |
| 311 | pr_err("%s reading clock-name failed index %d\n", |
| 312 | __func__, i); |
| 313 | rc = -EINVAL; |
| 314 | goto err4; |
| 315 | } |
| 316 | |
| 317 | CDBG("dbg: clk-name[%d] = %s\n", i, clk_info[i].clk_name); |
| 318 | |
| 319 | clks[i] = |
| 320 | devm_clk_get(&pdev->dev, clk_info[i].clk_name); |
| 321 | if (IS_ERR(clks[i])) { |
| 322 | rc = PTR_ERR(clks[i]); |
| 323 | goto err5; |
| 324 | } |
| 325 | CDBG("clk ptr[%d] :%pK\n", i, clks[i]); |
| 326 | } |
| 327 | *pclk_info = clk_info; |
| 328 | *pclks = clks; |
| 329 | *pclk_rates = rates; |
| 330 | |
| 331 | return rc; |
| 332 | |
| 333 | err5: |
| 334 | if (i > 0) { |
| 335 | do { |
| 336 | devm_clk_put(&pdev->dev, clks[--i]); |
| 337 | } while (i); |
| 338 | } |
| 339 | err4: |
| 340 | for (i = 0; i < *num_set; i++) |
| 341 | devm_kfree(&pdev->dev, rates[i]); |
| 342 | err3: |
| 343 | devm_kfree(&pdev->dev, rates); |
| 344 | err2: |
| 345 | devm_kfree(&pdev->dev, clks); |
| 346 | err1: |
| 347 | devm_kfree(&pdev->dev, clk_info); |
| 348 | return rc; |
| 349 | } |
| 350 | EXPORT_SYMBOL(msm_camera_get_clk_info_and_rates); |
| 351 | |
| 352 | /* Enable/Disable all clocks */ |
| 353 | int msm_camera_clk_enable(struct device *dev, |
| 354 | struct msm_cam_clk_info *clk_info, |
| 355 | struct clk **clk_ptr, int num_clk, int enable) |
| 356 | { |
| 357 | int i; |
| 358 | int rc = 0; |
| 359 | long clk_rate; |
| 360 | |
| 361 | if (enable) { |
| 362 | for (i = 0; i < num_clk; i++) { |
| 363 | CDBG("enable %s\n", clk_info[i].clk_name); |
| 364 | if (clk_info[i].clk_rate > 0) { |
| 365 | clk_rate = clk_round_rate(clk_ptr[i], |
| 366 | clk_info[i].clk_rate); |
| 367 | if (clk_rate < 0) { |
| 368 | pr_err("%s round failed\n", |
| 369 | clk_info[i].clk_name); |
| 370 | goto cam_clk_set_err; |
| 371 | } |
| 372 | rc = clk_set_rate(clk_ptr[i], |
| 373 | clk_rate); |
| 374 | if (rc < 0) { |
| 375 | pr_err("%s set failed\n", |
| 376 | clk_info[i].clk_name); |
| 377 | goto cam_clk_set_err; |
| 378 | } |
| 379 | |
| 380 | } else if (clk_info[i].clk_rate == INIT_RATE) { |
| 381 | clk_rate = clk_get_rate(clk_ptr[i]); |
| 382 | if (clk_rate == 0) { |
| 383 | clk_rate = |
| 384 | clk_round_rate(clk_ptr[i], 0); |
| 385 | if (clk_rate <= 0) { |
| 386 | pr_err("%s round rate failed\n", |
| 387 | clk_info[i].clk_name); |
| 388 | goto cam_clk_set_err; |
| 389 | } |
| 390 | } |
| 391 | rc = clk_set_rate(clk_ptr[i], clk_rate); |
| 392 | if (rc < 0) { |
| 393 | pr_err("%s set rate failed\n", |
| 394 | clk_info[i].clk_name); |
| 395 | goto cam_clk_set_err; |
| 396 | } |
| 397 | } |
| 398 | rc = clk_prepare_enable(clk_ptr[i]); |
| 399 | if (rc < 0) { |
| 400 | pr_err("%s enable failed\n", |
| 401 | clk_info[i].clk_name); |
| 402 | goto cam_clk_enable_err; |
| 403 | } |
| 404 | if (clk_info[i].delay > 20) { |
| 405 | msleep(clk_info[i].delay); |
| 406 | } else if (clk_info[i].delay) { |
| 407 | usleep_range(clk_info[i].delay * 1000, |
| 408 | (clk_info[i].delay * 1000) + 1000); |
| 409 | } |
| 410 | } |
| 411 | } else { |
| 412 | for (i = num_clk - 1; i >= 0; i--) { |
| 413 | if (clk_ptr[i] != NULL) { |
| 414 | CDBG("%s disable %s\n", __func__, |
| 415 | clk_info[i].clk_name); |
| 416 | clk_disable_unprepare(clk_ptr[i]); |
| 417 | } |
| 418 | } |
| 419 | } |
| 420 | return rc; |
| 421 | |
| 422 | cam_clk_enable_err: |
| 423 | cam_clk_set_err: |
| 424 | for (i--; i >= 0; i--) { |
| 425 | if (clk_ptr[i] != NULL) |
| 426 | clk_disable_unprepare(clk_ptr[i]); |
| 427 | } |
| 428 | return rc; |
| 429 | } |
| 430 | EXPORT_SYMBOL(msm_camera_clk_enable); |
| 431 | |
| 432 | /* Set rate on a specific clock */ |
| 433 | long msm_camera_clk_set_rate(struct device *dev, |
| 434 | struct clk *clk, |
| 435 | long clk_rate) |
| 436 | { |
| 437 | int rc = 0; |
| 438 | long rate = 0; |
| 439 | |
| 440 | if (!dev || !clk || (clk_rate < 0)) |
| 441 | return -EINVAL; |
| 442 | |
| 443 | CDBG("clk : %pK, enable : %ld\n", clk, clk_rate); |
| 444 | |
| 445 | if (clk_rate > 0) { |
| 446 | rate = clk_round_rate(clk, clk_rate); |
| 447 | if (rate < 0) { |
| 448 | pr_err("round rate failed\n"); |
| 449 | return -EINVAL; |
| 450 | } |
| 451 | |
| 452 | rc = clk_set_rate(clk, rate); |
| 453 | if (rc < 0) { |
| 454 | pr_err("set rate failed\n"); |
| 455 | return -EINVAL; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | return rate; |
| 460 | } |
| 461 | EXPORT_SYMBOL(msm_camera_clk_set_rate); |
| 462 | |
| 463 | int msm_camera_set_clk_flags(struct clk *clk, unsigned long flags) |
| 464 | { |
| 465 | if (!clk) |
| 466 | return -EINVAL; |
| 467 | |
| 468 | CDBG("clk : %pK, flags : %ld\n", clk, flags); |
| 469 | |
| 470 | return clk_set_flags(clk, flags); |
| 471 | } |
| 472 | EXPORT_SYMBOL(msm_camera_set_clk_flags); |
| 473 | |
| 474 | /* release memory allocated for clocks */ |
| 475 | static int msm_camera_put_clk_info_internal(struct device *dev, |
| 476 | struct msm_cam_clk_info **clk_info, |
| 477 | struct clk ***clk_ptr, int cnt) |
| 478 | { |
| 479 | int i; |
| 480 | |
| 481 | for (i = cnt - 1; i >= 0; i--) { |
| 482 | if (clk_ptr[i] != NULL) |
| 483 | devm_clk_put(dev, (*clk_ptr)[i]); |
| 484 | |
| 485 | CDBG("clk ptr[%d] :%pK\n", i, (*clk_ptr)[i]); |
| 486 | } |
| 487 | devm_kfree(dev, *clk_info); |
| 488 | devm_kfree(dev, *clk_ptr); |
| 489 | *clk_info = NULL; |
| 490 | *clk_ptr = NULL; |
| 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | /* release memory allocated for clocks for i2c devices */ |
| 495 | int msm_camera_i2c_dev_put_clk_info(struct device *dev, |
| 496 | struct msm_cam_clk_info **clk_info, |
| 497 | struct clk ***clk_ptr, int cnt) |
| 498 | { |
| 499 | int rc = 0; |
| 500 | |
| 501 | if (!dev || !clk_info || !clk_ptr) |
| 502 | return -EINVAL; |
| 503 | |
| 504 | rc = msm_camera_put_clk_info_internal(dev, clk_info, clk_ptr, cnt); |
| 505 | return rc; |
| 506 | } |
| 507 | EXPORT_SYMBOL(msm_camera_i2c_dev_put_clk_info); |
| 508 | |
| 509 | /* release memory allocated for clocks for platform devices */ |
| 510 | int msm_camera_put_clk_info(struct platform_device *pdev, |
| 511 | struct msm_cam_clk_info **clk_info, |
| 512 | struct clk ***clk_ptr, int cnt) |
| 513 | { |
| 514 | int rc = 0; |
| 515 | |
Naitik Bharadiya | a050874 | 2019-11-19 19:23:47 +0530 | [diff] [blame^] | 516 | if (!pdev || (&pdev->dev == NULL) || !clk_info || !clk_ptr) |
Pratap Nirujogi | 6e75991 | 2018-01-17 17:51:17 +0530 | [diff] [blame] | 517 | return -EINVAL; |
| 518 | |
| 519 | rc = msm_camera_put_clk_info_internal(&pdev->dev, |
| 520 | clk_info, clk_ptr, cnt); |
| 521 | return rc; |
| 522 | } |
| 523 | EXPORT_SYMBOL(msm_camera_put_clk_info); |
| 524 | |
| 525 | int msm_camera_put_clk_info_and_rates(struct platform_device *pdev, |
| 526 | struct msm_cam_clk_info **clk_info, |
| 527 | struct clk ***clk_ptr, uint32_t ***clk_rates, |
| 528 | size_t set, size_t cnt) |
| 529 | { |
| 530 | int i; |
| 531 | |
| 532 | for (i = set - 1; i >= 0; i--) |
| 533 | devm_kfree(&pdev->dev, (*clk_rates)[i]); |
| 534 | |
| 535 | devm_kfree(&pdev->dev, *clk_rates); |
| 536 | for (i = cnt - 1; i >= 0; i--) { |
| 537 | if (clk_ptr[i] != NULL) |
| 538 | devm_clk_put(&pdev->dev, (*clk_ptr)[i]); |
| 539 | CDBG("clk ptr[%d] :%pK\n", i, (*clk_ptr)[i]); |
| 540 | } |
| 541 | devm_kfree(&pdev->dev, *clk_info); |
| 542 | devm_kfree(&pdev->dev, *clk_ptr); |
| 543 | *clk_info = NULL; |
| 544 | *clk_ptr = NULL; |
| 545 | *clk_rates = NULL; |
| 546 | return 0; |
| 547 | } |
| 548 | EXPORT_SYMBOL(msm_camera_put_clk_info_and_rates); |
| 549 | |
| 550 | /* Get reset info from DT */ |
| 551 | int msm_camera_get_reset_info(struct platform_device *pdev, |
| 552 | struct reset_control **micro_iface_reset) |
| 553 | { |
| 554 | if (!pdev || !micro_iface_reset) |
| 555 | return -EINVAL; |
| 556 | |
| 557 | if (of_property_match_string(pdev->dev.of_node, "reset-names", |
| 558 | "micro_iface_reset")) { |
| 559 | pr_err("err: Reset property not found\n"); |
| 560 | return -EINVAL; |
| 561 | } |
| 562 | |
| 563 | *micro_iface_reset = devm_reset_control_get |
| 564 | (&pdev->dev, "micro_iface_reset"); |
| 565 | if (IS_ERR(*micro_iface_reset)) |
| 566 | return PTR_ERR(*micro_iface_reset); |
| 567 | |
| 568 | return 0; |
| 569 | } |
| 570 | EXPORT_SYMBOL(msm_camera_get_reset_info); |
| 571 | |
| 572 | /* Get regulators from DT */ |
| 573 | int msm_camera_get_regulator_info(struct platform_device *pdev, |
| 574 | struct msm_cam_regulator **vdd_info, |
| 575 | int *num_reg) |
| 576 | { |
| 577 | uint32_t cnt; |
| 578 | int i, rc; |
| 579 | struct device_node *of_node; |
| 580 | char prop_name[32]; |
| 581 | struct msm_cam_regulator *tmp_reg; |
| 582 | |
| 583 | if (!pdev || !vdd_info || !num_reg) |
| 584 | return -EINVAL; |
| 585 | |
| 586 | of_node = pdev->dev.of_node; |
| 587 | |
| 588 | if (!of_get_property(of_node, "qcom,vdd-names", NULL)) { |
| 589 | pr_err("err: Regulators property not found\n"); |
| 590 | return -EINVAL; |
| 591 | } |
| 592 | |
| 593 | cnt = of_property_count_strings(of_node, "qcom,vdd-names"); |
| 594 | if (cnt <= 0) { |
| 595 | pr_err("err: no regulators found in device tree, count=%d", |
| 596 | cnt); |
| 597 | return -EINVAL; |
| 598 | } |
| 599 | |
| 600 | tmp_reg = devm_kcalloc(&pdev->dev, cnt, |
| 601 | sizeof(struct msm_cam_regulator), GFP_KERNEL); |
| 602 | if (!tmp_reg) |
| 603 | return -ENOMEM; |
| 604 | |
| 605 | for (i = 0; i < cnt; i++) { |
| 606 | rc = of_property_read_string_index(of_node, |
| 607 | "qcom,vdd-names", i, &tmp_reg[i].name); |
| 608 | if (rc < 0) { |
| 609 | pr_err("Fail to fetch regulators: %d\n", i); |
| 610 | rc = -EINVAL; |
| 611 | goto err1; |
| 612 | } |
| 613 | |
| 614 | CDBG("regulator-names[%d] = %s\n", i, tmp_reg[i].name); |
| 615 | |
| 616 | snprintf(prop_name, 32, "%s-supply", tmp_reg[i].name); |
| 617 | |
| 618 | if (of_get_property(of_node, prop_name, NULL)) { |
| 619 | tmp_reg[i].vdd = |
| 620 | devm_regulator_get(&pdev->dev, tmp_reg[i].name); |
| 621 | if (IS_ERR(tmp_reg[i].vdd)) { |
| 622 | rc = -EINVAL; |
| 623 | pr_err("Fail to get regulator :%d\n", i); |
| 624 | goto err1; |
| 625 | } |
| 626 | } else { |
| 627 | pr_err("Regulator phandle not found :%s\n", |
| 628 | tmp_reg[i].name); |
| 629 | rc = -EINVAL; |
| 630 | goto err1; |
| 631 | } |
| 632 | CDBG("vdd ptr[%d] :%pK\n", i, tmp_reg[i].vdd); |
| 633 | } |
| 634 | |
| 635 | *num_reg = cnt; |
| 636 | *vdd_info = tmp_reg; |
| 637 | |
| 638 | return 0; |
| 639 | |
| 640 | err1: |
| 641 | for (--i; i >= 0; i--) |
| 642 | devm_regulator_put(tmp_reg[i].vdd); |
| 643 | devm_kfree(&pdev->dev, tmp_reg); |
| 644 | return rc; |
| 645 | } |
| 646 | EXPORT_SYMBOL(msm_camera_get_regulator_info); |
| 647 | |
| 648 | |
| 649 | /* Enable/Disable regulators */ |
| 650 | int msm_camera_regulator_enable(struct msm_cam_regulator *vdd_info, |
| 651 | int cnt, int enable) |
| 652 | { |
| 653 | int i; |
| 654 | int rc; |
| 655 | struct msm_cam_regulator *tmp = vdd_info; |
| 656 | |
| 657 | if (!tmp) { |
| 658 | pr_err("Invalid params"); |
| 659 | return -EINVAL; |
| 660 | } |
| 661 | CDBG("cnt : %d\n", cnt); |
| 662 | |
| 663 | for (i = 0; i < cnt; i++) { |
| 664 | if (tmp && !IS_ERR_OR_NULL(tmp->vdd)) { |
| 665 | CDBG("name : %s, enable : %d\n", tmp->name, enable); |
| 666 | if (enable) { |
| 667 | rc = regulator_enable(tmp->vdd); |
| 668 | if (rc < 0) { |
| 669 | pr_err("regulator enable failed %d\n", |
| 670 | i); |
| 671 | goto error; |
| 672 | } |
| 673 | } else { |
| 674 | rc = regulator_disable(tmp->vdd); |
| 675 | if (rc < 0) |
| 676 | pr_err("regulator disable failed %d\n", |
| 677 | i); |
| 678 | } |
| 679 | } |
| 680 | tmp++; |
| 681 | } |
| 682 | |
| 683 | return 0; |
| 684 | error: |
| 685 | for (--i; i > 0; i--) { |
| 686 | --tmp; |
| 687 | if (!IS_ERR_OR_NULL(tmp->vdd)) |
| 688 | regulator_disable(tmp->vdd); |
| 689 | } |
| 690 | return rc; |
| 691 | } |
| 692 | EXPORT_SYMBOL(msm_camera_regulator_enable); |
| 693 | |
| 694 | /* set regulator mode */ |
| 695 | int msm_camera_regulator_set_mode(struct msm_cam_regulator *vdd_info, |
| 696 | int cnt, bool mode) |
| 697 | { |
| 698 | int i; |
| 699 | int rc; |
| 700 | struct msm_cam_regulator *tmp = vdd_info; |
| 701 | |
| 702 | if (!tmp) { |
| 703 | pr_err("Invalid params"); |
| 704 | return -EINVAL; |
| 705 | } |
| 706 | CDBG("cnt : %d\n", cnt); |
| 707 | |
| 708 | for (i = 0; i < cnt; i++) { |
| 709 | if (tmp && !IS_ERR_OR_NULL(tmp->vdd)) { |
| 710 | CDBG("name : %s, enable : %d\n", tmp->name, mode); |
| 711 | if (mode) { |
| 712 | rc = regulator_set_mode(tmp->vdd, |
Trishansh Bhardwaj | 586ba08 | 2018-02-24 15:02:44 +0530 | [diff] [blame] | 713 | REGULATOR_MODE_NORMAL); |
Pratap Nirujogi | 6e75991 | 2018-01-17 17:51:17 +0530 | [diff] [blame] | 714 | if (rc < 0) { |
| 715 | pr_err("regulator enable failed %d\n", |
| 716 | i); |
| 717 | goto error; |
| 718 | } |
| 719 | } else { |
| 720 | rc = regulator_set_mode(tmp->vdd, |
| 721 | REGULATOR_MODE_NORMAL); |
| 722 | if (rc < 0) |
| 723 | pr_err("regulator disable failed %d\n", |
| 724 | i); |
| 725 | goto error; |
| 726 | } |
| 727 | } |
| 728 | tmp++; |
| 729 | } |
| 730 | |
| 731 | return 0; |
| 732 | error: |
| 733 | return rc; |
| 734 | } |
| 735 | EXPORT_SYMBOL(msm_camera_regulator_set_mode); |
| 736 | |
| 737 | |
| 738 | /* Put regulators regulators */ |
| 739 | void msm_camera_put_regulators(struct platform_device *pdev, |
| 740 | struct msm_cam_regulator **vdd_info, int cnt) |
| 741 | { |
| 742 | int i; |
| 743 | |
| 744 | if (!vdd_info || !*vdd_info) { |
| 745 | pr_err("Invalid params\n"); |
| 746 | return; |
| 747 | } |
| 748 | |
| 749 | for (i = cnt - 1; i >= 0; i--) { |
| 750 | if (vdd_info[i] && !IS_ERR_OR_NULL(vdd_info[i]->vdd)) |
| 751 | devm_regulator_put(vdd_info[i]->vdd); |
| 752 | CDBG("vdd ptr[%d] :%pK\n", i, vdd_info[i]->vdd); |
| 753 | } |
| 754 | |
| 755 | devm_kfree(&pdev->dev, *vdd_info); |
| 756 | *vdd_info = NULL; |
| 757 | } |
| 758 | EXPORT_SYMBOL(msm_camera_put_regulators); |
| 759 | |
| 760 | struct resource *msm_camera_get_irq(struct platform_device *pdev, |
| 761 | char *irq_name) |
| 762 | { |
| 763 | if (!pdev || !irq_name) { |
| 764 | pr_err("Invalid params\n"); |
| 765 | return NULL; |
| 766 | } |
| 767 | |
| 768 | CDBG("Get irq for %s\n", irq_name); |
| 769 | return platform_get_resource_byname(pdev, IORESOURCE_IRQ, irq_name); |
| 770 | } |
| 771 | EXPORT_SYMBOL(msm_camera_get_irq); |
| 772 | |
| 773 | int msm_camera_register_irq(struct platform_device *pdev, |
| 774 | struct resource *irq, irq_handler_t handler, |
| 775 | unsigned long irqflags, char *irq_name, void *dev_id) |
| 776 | { |
| 777 | int rc = 0; |
| 778 | |
| 779 | if (!pdev || !irq || !handler || !irq_name || !dev_id) { |
| 780 | pr_err("Invalid params\n"); |
| 781 | return -EINVAL; |
| 782 | } |
| 783 | |
| 784 | rc = devm_request_irq(&pdev->dev, irq->start, handler, |
| 785 | irqflags, irq_name, dev_id); |
| 786 | if (rc < 0) { |
| 787 | pr_err("irq request fail\n"); |
| 788 | rc = -EINVAL; |
| 789 | } |
| 790 | |
| 791 | CDBG("Registered irq for %s[resource - %pK]\n", irq_name, irq); |
| 792 | |
| 793 | return rc; |
| 794 | } |
| 795 | EXPORT_SYMBOL(msm_camera_register_irq); |
| 796 | |
| 797 | int msm_camera_register_threaded_irq(struct platform_device *pdev, |
| 798 | struct resource *irq, irq_handler_t handler_fn, |
| 799 | irq_handler_t thread_fn, unsigned long irqflags, |
| 800 | const char *irq_name, void *dev_id) |
| 801 | { |
| 802 | int rc = 0; |
| 803 | |
| 804 | if (!pdev || !irq || !irq_name || !dev_id) { |
| 805 | pr_err("Invalid params\n"); |
| 806 | return -EINVAL; |
| 807 | } |
| 808 | |
| 809 | rc = devm_request_threaded_irq(&pdev->dev, irq->start, handler_fn, |
| 810 | thread_fn, irqflags, irq_name, dev_id); |
| 811 | if (rc < 0) { |
| 812 | pr_err("irq request fail\n"); |
| 813 | rc = -EINVAL; |
| 814 | } |
| 815 | |
| 816 | CDBG("Registered irq for %s[resource - %pK]\n", irq_name, irq); |
| 817 | |
| 818 | return rc; |
| 819 | } |
| 820 | EXPORT_SYMBOL(msm_camera_register_threaded_irq); |
| 821 | |
| 822 | int msm_camera_enable_irq(struct resource *irq, int enable) |
| 823 | { |
| 824 | if (!irq) { |
| 825 | pr_err("Invalid params\n"); |
| 826 | return -EINVAL; |
| 827 | } |
| 828 | |
| 829 | CDBG("irq Enable %d\n", enable); |
| 830 | if (enable) |
| 831 | enable_irq(irq->start); |
| 832 | else |
| 833 | disable_irq(irq->start); |
| 834 | |
| 835 | return 0; |
| 836 | } |
| 837 | EXPORT_SYMBOL(msm_camera_enable_irq); |
| 838 | |
| 839 | int msm_camera_unregister_irq(struct platform_device *pdev, |
| 840 | struct resource *irq, void *dev_id) |
| 841 | { |
| 842 | |
| 843 | if (!pdev || !irq || !dev_id) { |
| 844 | pr_err("Invalid params\n"); |
| 845 | return -EINVAL; |
| 846 | } |
| 847 | |
| 848 | CDBG("Un Registering irq for [resource - %pK]\n", irq); |
| 849 | devm_free_irq(&pdev->dev, irq->start, dev_id); |
| 850 | |
| 851 | return 0; |
| 852 | } |
| 853 | EXPORT_SYMBOL(msm_camera_unregister_irq); |
| 854 | |
| 855 | void __iomem *msm_camera_get_reg_base(struct platform_device *pdev, |
| 856 | char *device_name, int reserve_mem) |
| 857 | { |
| 858 | struct resource *mem; |
| 859 | void __iomem *base; |
| 860 | |
| 861 | if (!pdev || !device_name) { |
| 862 | pr_err("Invalid params\n"); |
| 863 | return NULL; |
| 864 | } |
| 865 | |
| 866 | CDBG("device name :%s\n", device_name); |
| 867 | mem = platform_get_resource_byname(pdev, |
| 868 | IORESOURCE_MEM, device_name); |
| 869 | if (!mem) { |
| 870 | pr_err("err: mem resource %s not found\n", device_name); |
| 871 | return NULL; |
| 872 | } |
| 873 | |
| 874 | if (reserve_mem) { |
| 875 | CDBG("device:%pK, mem : %pK, size : %d\n", |
| 876 | &pdev->dev, mem, (int)resource_size(mem)); |
| 877 | if (!devm_request_mem_region(&pdev->dev, mem->start, |
| 878 | resource_size(mem), |
| 879 | device_name)) { |
| 880 | pr_err("err: no valid mem region for device:%s\n", |
| 881 | device_name); |
| 882 | return NULL; |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); |
| 887 | if (!base) { |
| 888 | devm_release_mem_region(&pdev->dev, mem->start, |
| 889 | resource_size(mem)); |
| 890 | pr_err("err: ioremap failed: %s\n", device_name); |
| 891 | return NULL; |
| 892 | } |
| 893 | |
| 894 | CDBG("base : %pK\n", base); |
| 895 | return base; |
| 896 | } |
| 897 | EXPORT_SYMBOL(msm_camera_get_reg_base); |
| 898 | |
| 899 | uint32_t msm_camera_get_res_size(struct platform_device *pdev, |
| 900 | char *device_name) |
| 901 | { |
| 902 | struct resource *mem; |
| 903 | |
| 904 | if (!pdev || !device_name) { |
| 905 | pr_err("Invalid params\n"); |
| 906 | return 0; |
| 907 | } |
| 908 | |
| 909 | CDBG("device name :%s\n", device_name); |
| 910 | mem = platform_get_resource_byname(pdev, |
| 911 | IORESOURCE_MEM, device_name); |
| 912 | if (!mem) { |
| 913 | pr_err("err: mem resource %s not found\n", device_name); |
| 914 | return 0; |
| 915 | } |
| 916 | return resource_size(mem); |
| 917 | } |
| 918 | EXPORT_SYMBOL(msm_camera_get_res_size); |
| 919 | |
| 920 | |
| 921 | int msm_camera_put_reg_base(struct platform_device *pdev, |
| 922 | void __iomem *base, char *device_name, int reserve_mem) |
| 923 | { |
| 924 | struct resource *mem; |
| 925 | |
| 926 | if (!pdev || !base || !device_name) { |
| 927 | pr_err("Invalid params\n"); |
| 928 | return -EINVAL; |
| 929 | } |
| 930 | |
| 931 | CDBG("device name :%s\n", device_name); |
| 932 | mem = platform_get_resource_byname(pdev, |
| 933 | IORESOURCE_MEM, device_name); |
| 934 | if (!mem) { |
| 935 | pr_err("err: mem resource %s not found\n", device_name); |
| 936 | return -EINVAL; |
| 937 | } |
| 938 | CDBG("mem : %pK, size : %d\n", mem, (int)resource_size(mem)); |
| 939 | |
| 940 | devm_iounmap(&pdev->dev, base); |
| 941 | if (reserve_mem) |
| 942 | devm_release_mem_region(&pdev->dev, |
| 943 | mem->start, resource_size(mem)); |
| 944 | |
| 945 | return 0; |
| 946 | } |
| 947 | EXPORT_SYMBOL(msm_camera_put_reg_base); |
| 948 | |
| 949 | /* Register the bus client */ |
| 950 | uint32_t msm_camera_register_bus_client(struct platform_device *pdev, |
| 951 | enum cam_bus_client id) |
| 952 | { |
| 953 | int rc = 0; |
| 954 | uint32_t bus_client, num_usecases, num_paths; |
| 955 | struct msm_bus_scale_pdata *pdata; |
| 956 | struct device_node *of_node; |
| 957 | |
| 958 | CDBG("Register client ID: %d\n", id); |
| 959 | |
| 960 | if (id >= CAM_BUS_CLIENT_MAX || !pdev) { |
| 961 | pr_err("Invalid params"); |
| 962 | return -EINVAL; |
| 963 | } |
| 964 | |
| 965 | of_node = pdev->dev.of_node; |
| 966 | |
| 967 | if (!g_cv[id].pdata) { |
| 968 | rc = of_property_read_u32(of_node, "qcom,msm-bus,num-cases", |
| 969 | &num_usecases); |
| 970 | if (rc) { |
| 971 | pr_err("num-usecases not found\n"); |
| 972 | return -EINVAL; |
| 973 | } |
| 974 | rc = of_property_read_u32(of_node, "qcom,msm-bus,num-paths", |
| 975 | &num_paths); |
| 976 | if (rc) { |
| 977 | pr_err("num-usecases not found\n"); |
| 978 | return -EINVAL; |
| 979 | } |
| 980 | |
| 981 | if (num_paths != 1) { |
| 982 | pr_err("Exceeds number of paths\n"); |
| 983 | return -EINVAL; |
| 984 | } |
| 985 | |
| 986 | if (of_property_read_bool(of_node, |
| 987 | "qcom,msm-bus-vector-dyn-vote")) { |
| 988 | if (num_usecases != 2) { |
| 989 | pr_err("Excess or less vectors\n"); |
| 990 | return -EINVAL; |
| 991 | } |
| 992 | g_cv[id].dyn_vote = true; |
| 993 | } |
| 994 | |
| 995 | pdata = msm_bus_cl_get_pdata(pdev); |
| 996 | if (!pdata) { |
| 997 | pr_err("failed get_pdata client_id :%d\n", id); |
| 998 | return -EINVAL; |
| 999 | } |
| 1000 | bus_client = msm_bus_scale_register_client(pdata); |
| 1001 | if (!bus_client) { |
| 1002 | pr_err("Unable to register bus client :%d\n", id); |
| 1003 | return -EINVAL; |
| 1004 | } |
| 1005 | } else { |
| 1006 | pr_err("vector already setup client_id : %d\n", id); |
| 1007 | return -EINVAL; |
| 1008 | } |
| 1009 | |
| 1010 | g_cv[id].pdata = pdata; |
| 1011 | g_cv[id].bus_client = bus_client; |
| 1012 | g_cv[id].vector_index = 0; |
| 1013 | g_cv[id].num_usecases = num_usecases; |
| 1014 | g_cv[id].num_paths = num_paths; |
| 1015 | mutex_init(&g_cv[id].lock); |
| 1016 | CDBG("Exit Client ID: %d\n", id); |
| 1017 | return 0; |
| 1018 | } |
| 1019 | EXPORT_SYMBOL(msm_camera_register_bus_client); |
| 1020 | |
| 1021 | /* Update the bus bandwidth */ |
| 1022 | uint32_t msm_camera_update_bus_bw(int id, uint64_t ab, uint64_t ib) |
| 1023 | { |
| 1024 | struct msm_bus_paths *path; |
| 1025 | struct msm_bus_scale_pdata *pdata; |
| 1026 | int idx = 0; |
| 1027 | |
| 1028 | if (id >= CAM_BUS_CLIENT_MAX) { |
| 1029 | pr_err("Invalid params"); |
| 1030 | return -EINVAL; |
| 1031 | } |
| 1032 | if (g_cv[id].num_usecases != 2 || |
| 1033 | g_cv[id].num_paths != 1 || |
| 1034 | g_cv[id].dyn_vote != true) { |
| 1035 | pr_err("dynamic update not allowed\n"); |
| 1036 | return -EINVAL; |
| 1037 | } |
| 1038 | |
| 1039 | mutex_lock(&g_cv[id].lock); |
| 1040 | idx = g_cv[id].vector_index; |
| 1041 | idx = 1 - idx; |
| 1042 | g_cv[id].vector_index = idx; |
| 1043 | mutex_unlock(&g_cv[id].lock); |
| 1044 | |
| 1045 | pdata = g_cv[id].pdata; |
| 1046 | path = &(pdata->usecase[idx]); |
| 1047 | path->vectors[0].ab = ab; |
| 1048 | path->vectors[0].ib = ib; |
| 1049 | |
| 1050 | CDBG("Register client ID : %d [ab : %llx, ib : %llx], update :%d\n", |
| 1051 | id, ab, ib, idx); |
| 1052 | msm_bus_scale_client_update_request(g_cv[id].bus_client, idx); |
| 1053 | |
| 1054 | return 0; |
| 1055 | } |
| 1056 | EXPORT_SYMBOL(msm_camera_update_bus_bw); |
| 1057 | |
| 1058 | /* Update the bus vector */ |
| 1059 | uint32_t msm_camera_update_bus_vector(enum cam_bus_client id, |
| 1060 | int vector_index) |
| 1061 | { |
| 1062 | if (id >= CAM_BUS_CLIENT_MAX || g_cv[id].dyn_vote == true) { |
| 1063 | pr_err("Invalid params"); |
| 1064 | return -EINVAL; |
| 1065 | } |
| 1066 | |
| 1067 | if (vector_index < 0 || vector_index > g_cv[id].num_usecases) { |
| 1068 | pr_err("Invalid params"); |
| 1069 | return -EINVAL; |
| 1070 | } |
| 1071 | |
| 1072 | CDBG("Register client ID : %d vector idx: %d,\n", id, vector_index); |
| 1073 | msm_bus_scale_client_update_request(g_cv[id].bus_client, |
| 1074 | vector_index); |
| 1075 | |
| 1076 | return 0; |
| 1077 | } |
| 1078 | EXPORT_SYMBOL(msm_camera_update_bus_vector); |
| 1079 | |
| 1080 | /* Unregister the bus client */ |
| 1081 | uint32_t msm_camera_unregister_bus_client(enum cam_bus_client id) |
| 1082 | { |
| 1083 | if (id >= CAM_BUS_CLIENT_MAX) { |
| 1084 | pr_err("Invalid params"); |
| 1085 | return -EINVAL; |
| 1086 | } |
| 1087 | |
| 1088 | CDBG("UnRegister client ID: %d\n", id); |
| 1089 | |
| 1090 | mutex_destroy(&g_cv[id].lock); |
| 1091 | msm_bus_scale_unregister_client(g_cv[id].bus_client); |
| 1092 | g_cv[id].bus_client = 0; |
| 1093 | g_cv[id].num_usecases = 0; |
| 1094 | g_cv[id].num_paths = 0; |
| 1095 | g_cv[id].vector_index = 0; |
| 1096 | g_cv[id].dyn_vote = 0; |
| 1097 | |
| 1098 | return 0; |
| 1099 | } |
| 1100 | EXPORT_SYMBOL(msm_camera_unregister_bus_client); |