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