drivers/remoteproc/qcom_wcnss.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Qualcomm Wireless Connectivity Subsystem Peripheral Image Loader
   4  *
   5  * Copyright (C) 2016 Linaro Ltd
   6  * Copyright (C) 2014 Sony Mobile Communications AB
   7  * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
   8  */
   9
  10 #include <linux/clk.h>
  11 #include <linux/delay.h>
  12 #include <linux/firmware.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/kernel.h>
  15 #include <linux/module.h>
  16 #include <linux/io.h>
  17 #include <linux/of_address.h>
  18 #include <linux/of_device.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/pm_domain.h>
  21 #include <linux/pm_runtime.h>
  22 #include <linux/qcom_scm.h>
  23 #include <linux/regulator/consumer.h>
  24 #include <linux/remoteproc.h>
  25 #include <linux/soc/qcom/mdt_loader.h>
  26 #include <linux/soc/qcom/smem.h>
  27 #include <linux/soc/qcom/smem_state.h>
  28 #include <linux/rpmsg/qcom_smd.h>
  29
  30 #include "qcom_common.h"
  31 #include "remoteproc_internal.h"
  32 #include "qcom_pil_info.h"
  33 #include "qcom_wcnss.h"
  34
  35 #define WCNSS_CRASH_REASON_SMEM         422
  36 #define WCNSS_FIRMWARE_NAME             "wcnss.mdt"
  37 #define WCNSS_PAS_ID                    6
  38 #define WCNSS_SSCTL_ID                  0x13
  39
  40 #define WCNSS_SPARE_NVBIN_DLND          BIT(25)
  41
  42 #define WCNSS_PMU_IRIS_XO_CFG           BIT(3)
  43 #define WCNSS_PMU_IRIS_XO_EN            BIT(4)
  44 #define WCNSS_PMU_GC_BUS_MUX_SEL_TOP    BIT(5)
  45 #define WCNSS_PMU_IRIS_XO_CFG_STS       BIT(6) /* 1: in progress, 0: done */
  46
  47 #define WCNSS_PMU_IRIS_RESET            BIT(7)
  48 #define WCNSS_PMU_IRIS_RESET_STS        BIT(8) /* 1: in progress, 0: done */
  49 #define WCNSS_PMU_IRIS_XO_READ          BIT(9)
  50 #define WCNSS_PMU_IRIS_XO_READ_STS      BIT(10)
  51
  52 #define WCNSS_PMU_XO_MODE_MASK          GENMASK(2, 1)
  53 #define WCNSS_PMU_XO_MODE_19p2          0
  54 #define WCNSS_PMU_XO_MODE_48            3
  55
  56 #define WCNSS_MAX_PDS                   2
  57
  58 struct wcnss_data {
  59         size_t pmu_offset;
  60         size_t spare_offset;
  61
  62         const char *pd_names[WCNSS_MAX_PDS];
  63         const struct wcnss_vreg_info *vregs;
  64         size_t num_vregs, num_pd_vregs;
  65 };
  66
  67 struct qcom_wcnss {
  68         struct device *dev;
  69         struct rproc *rproc;
  70
  71         void __iomem *pmu_cfg;
  72         void __iomem *spare_out;
  73
  74         bool use_48mhz_xo;
  75
  76         int wdog_irq;
  77         int fatal_irq;
  78         int ready_irq;
  79         int handover_irq;
  80         int stop_ack_irq;
  81
  82         struct qcom_smem_state *state;
  83         unsigned stop_bit;
  84
  85         struct mutex iris_lock;
  86         struct qcom_iris *iris;
  87
  88         struct device *pds[WCNSS_MAX_PDS];
  89         size_t num_pds;
  90         struct regulator_bulk_data *vregs;
  91         size_t num_vregs;
  92
  93         struct completion start_done;
  94         struct completion stop_done;
  95
  96         phys_addr_t mem_phys;
  97         phys_addr_t mem_reloc;
  98         void *mem_region;
  99         size_t mem_size;
 100
 101         struct qcom_rproc_subdev smd_subdev;
 102         struct qcom_sysmon *sysmon;
 103 };
 104
 105 static const struct wcnss_data riva_data = {
 106         .pmu_offset = 0x28,
 107         .spare_offset = 0xb4,
 108
 109         .vregs = (struct wcnss_vreg_info[]) {
 110                 { "vddmx",  1050000, 1150000, 0 },
 111                 { "vddcx",  1050000, 1150000, 0 },
 112                 { "vddpx",  1800000, 1800000, 0 },
 113         },
 114         .num_vregs = 3,
 115 };
 116
 117 static const struct wcnss_data pronto_v1_data = {
 118         .pmu_offset = 0x1004,
 119         .spare_offset = 0x1088,
 120
 121         .pd_names = { "mx", "cx" },
 122         .vregs = (struct wcnss_vreg_info[]) {
 123                 { "vddmx", 950000, 1150000, 0 },
 124                 { "vddcx", .super_turbo = true},
 125                 { "vddpx", 1800000, 1800000, 0 },
 126         },
 127         .num_pd_vregs = 2,
 128         .num_vregs = 1,
 129 };
 130
 131 static const struct wcnss_data pronto_v2_data = {
 132         .pmu_offset = 0x1004,
 133         .spare_offset = 0x1088,
 134
 135         .pd_names = { "mx", "cx" },
 136         .vregs = (struct wcnss_vreg_info[]) {
 137                 { "vddmx", 1287500, 1287500, 0 },
 138                 { "vddcx", .super_turbo = true },
 139                 { "vddpx", 1800000, 1800000, 0 },
 140         },
 141         .num_pd_vregs = 2,
 142         .num_vregs = 1,
 143 };
 144
 145 static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
 146 {
 147         struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
 148         int ret;
 149
 150         ret = qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
 151                             wcnss->mem_region, wcnss->mem_phys,
 152                             wcnss->mem_size, &wcnss->mem_reloc);
 153         if (ret)
 154                 return ret;
 155
 156         qcom_pil_info_store("wcnss", wcnss->mem_phys, wcnss->mem_size);
 157
 158         return 0;
 159 }
 160
 161 static void wcnss_indicate_nv_download(struct qcom_wcnss *wcnss)
 162 {
 163         u32 val;
 164
 165         /* Indicate NV download capability */
 166         val = readl(wcnss->spare_out);
 167         val |= WCNSS_SPARE_NVBIN_DLND;
 168         writel(val, wcnss->spare_out);
 169 }
 170
 171 static void wcnss_configure_iris(struct qcom_wcnss *wcnss)
 172 {
 173         u32 val;
 174
 175         /* Clear PMU cfg register */
 176         writel(0, wcnss->pmu_cfg);
 177
 178         val = WCNSS_PMU_GC_BUS_MUX_SEL_TOP | WCNSS_PMU_IRIS_XO_EN;
 179         writel(val, wcnss->pmu_cfg);
 180
 181         /* Clear XO_MODE */
 182         val &= ~WCNSS_PMU_XO_MODE_MASK;
 183         if (wcnss->use_48mhz_xo)
 184                 val |= WCNSS_PMU_XO_MODE_48 << 1;
 185         else
 186                 val |= WCNSS_PMU_XO_MODE_19p2 << 1;
 187         writel(val, wcnss->pmu_cfg);
 188
 189         /* Reset IRIS */
 190         val |= WCNSS_PMU_IRIS_RESET;
 191         writel(val, wcnss->pmu_cfg);
 192
 193         /* Wait for PMU.iris_reg_reset_sts */
 194         while (readl(wcnss->pmu_cfg) & WCNSS_PMU_IRIS_RESET_STS)
 195                 cpu_relax();
 196
 197         /* Clear IRIS reset */
 198         val &= ~WCNSS_PMU_IRIS_RESET;
 199         writel(val, wcnss->pmu_cfg);
 200
 201         /* Start IRIS XO configuration */
 202         val |= WCNSS_PMU_IRIS_XO_CFG;
 203         writel(val, wcnss->pmu_cfg);
 204
 205         /* Wait for XO configuration to finish */
 206         while (readl(wcnss->pmu_cfg) & WCNSS_PMU_IRIS_XO_CFG_STS)
 207                 cpu_relax();
 208
 209         /* Stop IRIS XO configuration */
 210         val &= ~WCNSS_PMU_GC_BUS_MUX_SEL_TOP;
 211         val &= ~WCNSS_PMU_IRIS_XO_CFG;
 212         writel(val, wcnss->pmu_cfg);
 213
 214         /* Add some delay for XO to settle */
 215         msleep(20);
 216 }
 217
 218 static int wcnss_start(struct rproc *rproc)
 219 {
 220         struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
 221         int ret, i;
 222
 223         mutex_lock(&wcnss->iris_lock);
 224         if (!wcnss->iris) {
 225                 dev_err(wcnss->dev, "no iris registered\n");
 226                 ret = -EINVAL;
 227                 goto release_iris_lock;
 228         }
 229
 230         for (i = 0; i < wcnss->num_pds; i++) {
 231                 dev_pm_genpd_set_performance_state(wcnss->pds[i], INT_MAX);
 232                 ret = pm_runtime_get_sync(wcnss->pds[i]);
 233                 if (ret < 0) {
 234                         pm_runtime_put_noidle(wcnss->pds[i]);
 235                         goto disable_pds;
 236                 }
 237         }
 238
 239         ret = regulator_bulk_enable(wcnss->num_vregs, wcnss->vregs);
 240         if (ret)
 241                 goto disable_pds;
 242
 243         ret = qcom_iris_enable(wcnss->iris);
 244         if (ret)
 245                 goto disable_regulators;
 246
 247         wcnss_indicate_nv_download(wcnss);
 248         wcnss_configure_iris(wcnss);
 249
 250         ret = qcom_scm_pas_auth_and_reset(WCNSS_PAS_ID);
 251         if (ret) {
 252                 dev_err(wcnss->dev,
 253                         "failed to authenticate image and release reset\n");
 254                 goto disable_iris;
 255         }
 256
 257         ret = wait_for_completion_timeout(&wcnss->start_done,
 258                                           msecs_to_jiffies(5000));
 259         if (wcnss->ready_irq > 0 && ret == 0) {
 260                 /* We have a ready_irq, but it didn't fire in time. */
 261                 dev_err(wcnss->dev, "start timed out\n");
 262                 qcom_scm_pas_shutdown(WCNSS_PAS_ID);
 263                 ret = -ETIMEDOUT;
 264                 goto disable_iris;
 265         }
 266
 267         ret = 0;
 268
 269 disable_iris:
 270         qcom_iris_disable(wcnss->iris);
 271 disable_regulators:
 272         regulator_bulk_disable(wcnss->num_vregs, wcnss->vregs);
 273 disable_pds:
 274         for (i--; i >= 0; i--) {
 275                 pm_runtime_put(wcnss->pds[i]);
 276                 dev_pm_genpd_set_performance_state(wcnss->pds[i], 0);
 277         }
 278 release_iris_lock:
 279         mutex_unlock(&wcnss->iris_lock);
 280
 281         return ret;
 282 }
 283
 284 static int wcnss_stop(struct rproc *rproc)
 285 {
 286         struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
 287         int ret;
 288
 289         if (wcnss->state) {
 290                 qcom_smem_state_update_bits(wcnss->state,
 291                                             BIT(wcnss->stop_bit),
 292                                             BIT(wcnss->stop_bit));
 293
 294                 ret = wait_for_completion_timeout(&wcnss->stop_done,
 295                                                   msecs_to_jiffies(5000));
 296                 if (ret == 0)
 297                         dev_err(wcnss->dev, "timed out on wait\n");
 298
 299                 qcom_smem_state_update_bits(wcnss->state,
 300                                             BIT(wcnss->stop_bit),
 301                                             0);
 302         }
 303
 304         ret = qcom_scm_pas_shutdown(WCNSS_PAS_ID);
 305         if (ret)
 306                 dev_err(wcnss->dev, "failed to shutdown: %d\n", ret);
 307
 308         return ret;
 309 }
 310
 311 static void *wcnss_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
 312 {
 313         struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
 314         int offset;
 315
 316         offset = da - wcnss->mem_reloc;
 317         if (offset < 0 || offset + len > wcnss->mem_size)
 318                 return NULL;
 319
 320         return wcnss->mem_region + offset;
 321 }
 322
 323 static const struct rproc_ops wcnss_ops = {
 324         .start = wcnss_start,
 325         .stop = wcnss_stop,
 326         .da_to_va = wcnss_da_to_va,
 327         .parse_fw = qcom_register_dump_segments,
 328         .load = wcnss_load,
 329 };
 330
 331 static irqreturn_t wcnss_wdog_interrupt(int irq, void *dev)
 332 {
 333         struct qcom_wcnss *wcnss = dev;
 334
 335         rproc_report_crash(wcnss->rproc, RPROC_WATCHDOG);
 336
 337         return IRQ_HANDLED;
 338 }
 339
 340 static irqreturn_t wcnss_fatal_interrupt(int irq, void *dev)
 341 {
 342         struct qcom_wcnss *wcnss = dev;
 343         size_t len;
 344         char *msg;
 345
 346         msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, WCNSS_CRASH_REASON_SMEM, &len);
 347         if (!IS_ERR(msg) && len > 0 && msg[0])
 348                 dev_err(wcnss->dev, "fatal error received: %s\n", msg);
 349
 350         rproc_report_crash(wcnss->rproc, RPROC_FATAL_ERROR);
 351
 352         return IRQ_HANDLED;
 353 }
 354
 355 static irqreturn_t wcnss_ready_interrupt(int irq, void *dev)
 356 {
 357         struct qcom_wcnss *wcnss = dev;
 358
 359         complete(&wcnss->start_done);
 360
 361         return IRQ_HANDLED;
 362 }
 363
 364 static irqreturn_t wcnss_handover_interrupt(int irq, void *dev)
 365 {
 366         /*
 367          * XXX: At this point we're supposed to release the resources that we
 368          * have been holding on behalf of the WCNSS. Unfortunately this
 369          * interrupt comes way before the other side seems to be done.
 370          *
 371          * So we're currently relying on the ready interrupt firing later then
 372          * this and we just disable the resources at the end of wcnss_start().
 373          */
 374
 375         return IRQ_HANDLED;
 376 }
 377
 378 static irqreturn_t wcnss_stop_ack_interrupt(int irq, void *dev)
 379 {
 380         struct qcom_wcnss *wcnss = dev;
 381
 382         complete(&wcnss->stop_done);
 383
 384         return IRQ_HANDLED;
 385 }
 386
 387 static int wcnss_init_pds(struct qcom_wcnss *wcnss,
 388                           const char * const pd_names[WCNSS_MAX_PDS])
 389 {
 390         int i, ret;
 391
 392         for (i = 0; i < WCNSS_MAX_PDS; i++) {
 393                 if (!pd_names[i])
 394                         break;
 395
 396                 wcnss->pds[i] = dev_pm_domain_attach_by_name(wcnss->dev, pd_names[i]);
 397                 if (IS_ERR_OR_NULL(wcnss->pds[i])) {
 398                         ret = PTR_ERR(wcnss->pds[i]) ? : -ENODATA;
 399                         for (i--; i >= 0; i--)
 400                                 dev_pm_domain_detach(wcnss->pds[i], false);
 401                         return ret;
 402                 }
 403         }
 404         wcnss->num_pds = i;
 405
 406         return 0;
 407 }
 408
 409 static void wcnss_release_pds(struct qcom_wcnss *wcnss)
 410 {
 411         int i;
 412
 413         for (i = 0; i < wcnss->num_pds; i++)
 414                 dev_pm_domain_detach(wcnss->pds[i], false);
 415 }
 416
 417 static int wcnss_init_regulators(struct qcom_wcnss *wcnss,
 418                                  const struct wcnss_vreg_info *info,
 419                                  int num_vregs, int num_pd_vregs)
 420 {
 421         struct regulator_bulk_data *bulk;
 422         int ret;
 423         int i;
 424
 425         /*
 426          * If attaching the power domains suceeded we can skip requesting
 427          * the regulators for the power domains. For old device trees we need to
 428          * reserve extra space to manage them through the regulator interface.
 429          */
 430         if (wcnss->num_pds)
 431                 info += num_pd_vregs;
 432         else
 433                 num_vregs += num_pd_vregs;
 434
 435         bulk = devm_kcalloc(wcnss->dev,
 436                             num_vregs, sizeof(struct regulator_bulk_data),
 437                             GFP_KERNEL);
 438         if (!bulk)
 439                 return -ENOMEM;
 440
 441         for (i = 0; i < num_vregs; i++)
 442                 bulk[i].supply = info[i].name;
 443
 444         ret = devm_regulator_bulk_get(wcnss->dev, num_vregs, bulk);
 445         if (ret)
 446                 return ret;
 447
 448         for (i = 0; i < num_vregs; i++) {
 449                 if (info[i].max_voltage)
 450                         regulator_set_voltage(bulk[i].consumer,
 451                                               info[i].min_voltage,
 452                                               info[i].max_voltage);
 453
 454                 if (info[i].load_uA)
 455                         regulator_set_load(bulk[i].consumer, info[i].load_uA);
 456         }
 457
 458         wcnss->vregs = bulk;
 459         wcnss->num_vregs = num_vregs;
 460
 461         return 0;
 462 }
 463
 464 static int wcnss_request_irq(struct qcom_wcnss *wcnss,
 465                              struct platform_device *pdev,
 466                              const char *name,
 467                              bool optional,
 468                              irq_handler_t thread_fn)
 469 {
 470         int ret;
 471
 472         ret = platform_get_irq_byname(pdev, name);
 473         if (ret < 0 && optional) {
 474                 dev_dbg(&pdev->dev, "no %s IRQ defined, ignoring\n", name);
 475                 return 0;
 476         } else if (ret < 0) {
 477                 dev_err(&pdev->dev, "no %s IRQ defined\n", name);
 478                 return ret;
 479         }
 480
 481         ret = devm_request_threaded_irq(&pdev->dev, ret,
 482                                         NULL, thread_fn,
 483                                         IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 484                                         "wcnss", wcnss);
 485         if (ret)
 486                 dev_err(&pdev->dev, "request %s IRQ failed\n", name);
 487
 488         return ret;
 489 }
 490
 491 static int wcnss_alloc_memory_region(struct qcom_wcnss *wcnss)
 492 {
 493         struct device_node *node;
 494         struct resource r;
 495         int ret;
 496
 497         node = of_parse_phandle(wcnss->dev->of_node, "memory-region", 0);
 498         if (!node) {
 499                 dev_err(wcnss->dev, "no memory-region specified\n");
 500                 return -EINVAL;
 501         }
 502
 503         ret = of_address_to_resource(node, 0, &r);
 504         of_node_put(node);
 505         if (ret)
 506                 return ret;
 507
 508         wcnss->mem_phys = wcnss->mem_reloc = r.start;
 509         wcnss->mem_size = resource_size(&r);
 510         wcnss->mem_region = devm_ioremap_wc(wcnss->dev, wcnss->mem_phys, wcnss->mem_size);
 511         if (!wcnss->mem_region) {
 512                 dev_err(wcnss->dev, "unable to map memory region: %pa+%zx\n",
 513                         &r.start, wcnss->mem_size);
 514                 return -EBUSY;
 515         }
 516
 517         return 0;
 518 }
 519
 520 static int wcnss_probe(struct platform_device *pdev)
 521 {
 522         const char *fw_name = WCNSS_FIRMWARE_NAME;
 523         const struct wcnss_data *data;
 524         struct qcom_wcnss *wcnss;
 525         struct resource *res;
 526         struct rproc *rproc;
 527         void __iomem *mmio;
 528         int ret;
 529
 530         data = of_device_get_match_data(&pdev->dev);
 531
 532         if (!qcom_scm_is_available())
 533                 return -EPROBE_DEFER;
 534
 535         if (!qcom_scm_pas_supported(WCNSS_PAS_ID)) {
 536                 dev_err(&pdev->dev, "PAS is not available for WCNSS\n");
 537                 return -ENXIO;
 538         }
 539
 540         ret = of_property_read_string(pdev->dev.of_node, "firmware-name",
 541                                       &fw_name);
 542         if (ret < 0 && ret != -EINVAL)
 543                 return ret;
 544
 545         rproc = rproc_alloc(&pdev->dev, pdev->name, &wcnss_ops,
 546                             fw_name, sizeof(*wcnss));
 547         if (!rproc) {
 548                 dev_err(&pdev->dev, "unable to allocate remoteproc\n");
 549                 return -ENOMEM;
 550         }
 551         rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE);
 552
 553         wcnss = (struct qcom_wcnss *)rproc->priv;
 554         wcnss->dev = &pdev->dev;
 555         wcnss->rproc = rproc;
 556         platform_set_drvdata(pdev, wcnss);
 557
 558         init_completion(&wcnss->start_done);
 559         init_completion(&wcnss->stop_done);
 560
 561         mutex_init(&wcnss->iris_lock);
 562
 563         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pmu");
 564         mmio = devm_ioremap_resource(&pdev->dev, res);
 565         if (IS_ERR(mmio)) {
 566                 ret = PTR_ERR(mmio);
 567                 goto free_rproc;
 568         }
 569
 570         ret = wcnss_alloc_memory_region(wcnss);
 571         if (ret)
 572                 goto free_rproc;
 573
 574         wcnss->pmu_cfg = mmio + data->pmu_offset;
 575         wcnss->spare_out = mmio + data->spare_offset;
 576
 577         /*
 578          * We might need to fallback to regulators instead of power domains
 579          * for old device trees. Don't report an error in that case.
 580          */
 581         ret = wcnss_init_pds(wcnss, data->pd_names);
 582         if (ret && (ret != -ENODATA || !data->num_pd_vregs))
 583                 goto free_rproc;
 584
 585         ret = wcnss_init_regulators(wcnss, data->vregs, data->num_vregs,
 586                                     data->num_pd_vregs);
 587         if (ret)
 588                 goto detach_pds;
 589
 590         ret = wcnss_request_irq(wcnss, pdev, "wdog", false, wcnss_wdog_interrupt);
 591         if (ret < 0)
 592                 goto detach_pds;
 593         wcnss->wdog_irq = ret;
 594
 595         ret = wcnss_request_irq(wcnss, pdev, "fatal", false, wcnss_fatal_interrupt);
 596         if (ret < 0)
 597                 goto detach_pds;
 598         wcnss->fatal_irq = ret;
 599
 600         ret = wcnss_request_irq(wcnss, pdev, "ready", true, wcnss_ready_interrupt);
 601         if (ret < 0)
 602                 goto detach_pds;
 603         wcnss->ready_irq = ret;
 604
 605         ret = wcnss_request_irq(wcnss, pdev, "handover", true, wcnss_handover_interrupt);
 606         if (ret < 0)
 607                 goto detach_pds;
 608         wcnss->handover_irq = ret;
 609
 610         ret = wcnss_request_irq(wcnss, pdev, "stop-ack", true, wcnss_stop_ack_interrupt);
 611         if (ret < 0)
 612                 goto detach_pds;
 613         wcnss->stop_ack_irq = ret;
 614
 615         if (wcnss->stop_ack_irq) {
 616                 wcnss->state = devm_qcom_smem_state_get(&pdev->dev, "stop",
 617                                                         &wcnss->stop_bit);
 618                 if (IS_ERR(wcnss->state)) {
 619                         ret = PTR_ERR(wcnss->state);
 620                         goto detach_pds;
 621                 }
 622         }
 623
 624         qcom_add_smd_subdev(rproc, &wcnss->smd_subdev);
 625         wcnss->sysmon = qcom_add_sysmon_subdev(rproc, "wcnss", WCNSS_SSCTL_ID);
 626         if (IS_ERR(wcnss->sysmon)) {
 627                 ret = PTR_ERR(wcnss->sysmon);
 628                 goto detach_pds;
 629         }
 630
 631         wcnss->iris = qcom_iris_probe(&pdev->dev, &wcnss->use_48mhz_xo);
 632         if (IS_ERR(wcnss->iris)) {
 633                 ret = PTR_ERR(wcnss->iris);
 634                 goto detach_pds;
 635         }
 636
 637         ret = rproc_add(rproc);
 638         if (ret)
 639                 goto remove_iris;
 640
 641         return 0;
 642
 643 remove_iris:
 644         qcom_iris_remove(wcnss->iris);
 645 detach_pds:
 646         wcnss_release_pds(wcnss);
 647 free_rproc:
 648         rproc_free(rproc);
 649
 650         return ret;
 651 }
 652
 653 static int wcnss_remove(struct platform_device *pdev)
 654 {
 655         struct qcom_wcnss *wcnss = platform_get_drvdata(pdev);
 656
 657         qcom_iris_remove(wcnss->iris);
 658
 659         rproc_del(wcnss->rproc);
 660
 661         qcom_remove_sysmon_subdev(wcnss->sysmon);
 662         qcom_remove_smd_subdev(wcnss->rproc, &wcnss->smd_subdev);
 663         wcnss_release_pds(wcnss);
 664         rproc_free(wcnss->rproc);
 665
 666         return 0;
 667 }
 668
 669 static const struct of_device_id wcnss_of_match[] = {
 670         { .compatible = "qcom,riva-pil", &riva_data },
 671         { .compatible = "qcom,pronto-v1-pil", &pronto_v1_data },
 672         { .compatible = "qcom,pronto-v2-pil", &pronto_v2_data },
 673         { },
 674 };
 675 MODULE_DEVICE_TABLE(of, wcnss_of_match);
 676
 677 static struct platform_driver wcnss_driver = {
 678         .probe = wcnss_probe,
 679         .remove = wcnss_remove,
 680         .driver = {
 681                 .name = "qcom-wcnss-pil",
 682                 .of_match_table = wcnss_of_match,
 683         },
 684 };
 685
 686 module_platform_driver(wcnss_driver);
 687
 688 MODULE_DESCRIPTION("Qualcomm Peripheral Image Loader for Wireless Subsystem");
 689 MODULE_LICENSE("GPL v2");