[mirror_ubuntu-artful-kernel.git] / drivers / remoteproc / qcom_adsp_pil.c

/*
 * Qualcomm ADSP Peripheral Image Loader for MSM8974 and MSM8996
 *
 * Copyright (C) 2016 Linaro Ltd
 * Copyright (C) 2014 Sony Mobile Communications AB
 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/firmware.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/qcom_scm.h>
#include <linux/regulator/consumer.h>
#include <linux/remoteproc.h>
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>

#include "qcom_mdt_loader.h"
#include "remoteproc_internal.h"

#define ADSP_CRASH_REASON_SMEM		423
#define ADSP_FIRMWARE_NAME		"adsp.mdt"
#define ADSP_PAS_ID			1

struct qcom_adsp {
	struct device *dev;
	struct rproc *rproc;

	int wdog_irq;
	int fatal_irq;
	int ready_irq;
	int handover_irq;
	int stop_ack_irq;

	struct qcom_smem_state *state;
	unsigned stop_bit;

	struct regulator *cx_supply;

	struct completion start_done;
	struct completion stop_done;

	phys_addr_t mem_phys;
	phys_addr_t mem_reloc;
	void *mem_region;
	size_t mem_size;
};

static int adsp_load(struct rproc *rproc, const struct firmware *fw)
{
	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
	phys_addr_t fw_addr;
	size_t fw_size;
	bool relocate;
	int ret;

	ret = qcom_scm_pas_init_image(ADSP_PAS_ID, fw->data, fw->size);
	if (ret) {
		dev_err(&rproc->dev, "invalid firmware metadata\n");
		return ret;
	}

	ret = qcom_mdt_parse(fw, &fw_addr, &fw_size, &relocate);
	if (ret) {
		dev_err(&rproc->dev, "failed to parse mdt header\n");
		return ret;
	}

	if (relocate) {
		adsp->mem_reloc = fw_addr;

		ret = qcom_scm_pas_mem_setup(ADSP_PAS_ID, adsp->mem_phys, fw_size);
		if (ret) {
			dev_err(&rproc->dev, "unable to setup memory for image\n");
			return ret;
		}
	}

	return qcom_mdt_load(rproc, fw, rproc->firmware);
}

static const struct rproc_fw_ops adsp_fw_ops = {
	.find_rsc_table = qcom_mdt_find_rsc_table,
	.load = adsp_load,
};

static int adsp_start(struct rproc *rproc)
{
	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
	int ret;

	ret = regulator_enable(adsp->cx_supply);
	if (ret)
		return ret;

	ret = qcom_scm_pas_auth_and_reset(ADSP_PAS_ID);
	if (ret) {
		dev_err(adsp->dev,
			"failed to authenticate image and release reset\n");
		goto disable_regulators;
	}

	ret = wait_for_completion_timeout(&adsp->start_done,
					  msecs_to_jiffies(5000));
	if (!ret) {
		dev_err(adsp->dev, "start timed out\n");
		qcom_scm_pas_shutdown(ADSP_PAS_ID);
		ret = -ETIMEDOUT;
		goto disable_regulators;
	}

	ret = 0;

disable_regulators:
	regulator_disable(adsp->cx_supply);

	return ret;
}

static int adsp_stop(struct rproc *rproc)
{
	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
	int ret;

	qcom_smem_state_update_bits(adsp->state,
				    BIT(adsp->stop_bit),
				    BIT(adsp->stop_bit));

	ret = wait_for_completion_timeout(&adsp->stop_done,
					  msecs_to_jiffies(5000));
	if (ret == 0)
		dev_err(adsp->dev, "timed out on wait\n");

	qcom_smem_state_update_bits(adsp->state,
				    BIT(adsp->stop_bit),
				    0);

	ret = qcom_scm_pas_shutdown(ADSP_PAS_ID);
	if (ret)
		dev_err(adsp->dev, "failed to shutdown: %d\n", ret);

	return ret;
}

static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
{
	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
	int offset;

	offset = da - adsp->mem_reloc;
	if (offset < 0 || offset + len > adsp->mem_size)
		return NULL;

	return adsp->mem_region + offset;
}

static const struct rproc_ops adsp_ops = {
	.start = adsp_start,
	.stop = adsp_stop,
	.da_to_va = adsp_da_to_va,
};

static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
{
	struct qcom_adsp *adsp = dev;

	rproc_report_crash(adsp->rproc, RPROC_WATCHDOG);

	return IRQ_HANDLED;
}

static irqreturn_t adsp_fatal_interrupt(int irq, void *dev)
{
	struct qcom_adsp *adsp = dev;
	size_t len;
	char *msg;

	msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, ADSP_CRASH_REASON_SMEM, &len);
	if (!IS_ERR(msg) && len > 0 && msg[0])
		dev_err(adsp->dev, "fatal error received: %s\n", msg);

	rproc_report_crash(adsp->rproc, RPROC_FATAL_ERROR);

	if (!IS_ERR(msg))
		msg[0] = '\0';

	return IRQ_HANDLED;
}

static irqreturn_t adsp_ready_interrupt(int irq, void *dev)
{
	return IRQ_HANDLED;
}

static irqreturn_t adsp_handover_interrupt(int irq, void *dev)
{
	struct qcom_adsp *adsp = dev;

	complete(&adsp->start_done);

	return IRQ_HANDLED;
}

static irqreturn_t adsp_stop_ack_interrupt(int irq, void *dev)
{
	struct qcom_adsp *adsp = dev;

	complete(&adsp->stop_done);

	return IRQ_HANDLED;
}

static int adsp_init_regulator(struct qcom_adsp *adsp)
{
	adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
	if (IS_ERR(adsp->cx_supply))
		return PTR_ERR(adsp->cx_supply);

	regulator_set_load(adsp->cx_supply, 100000);

	return 0;
}

static int adsp_request_irq(struct qcom_adsp *adsp,
			     struct platform_device *pdev,
			     const char *name,
			     irq_handler_t thread_fn)
{
	int ret;

	ret = platform_get_irq_byname(pdev, name);
	if (ret < 0) {
		dev_err(&pdev->dev, "no %s IRQ defined\n", name);
		return ret;
	}

	ret = devm_request_threaded_irq(&pdev->dev, ret,
					NULL, thread_fn,
					IRQF_ONESHOT,
					"adsp", adsp);
	if (ret)
		dev_err(&pdev->dev, "request %s IRQ failed\n", name);

	return ret;
}

static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
{
	struct device_node *node;
	struct resource r;
	int ret;

	node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
	if (!node) {
		dev_err(adsp->dev, "no memory-region specified\n");
		return -EINVAL;
	}

	ret = of_address_to_resource(node, 0, &r);
	if (ret)
		return ret;

	adsp->mem_phys = adsp->mem_reloc = r.start;
	adsp->mem_size = resource_size(&r);
	adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
	if (!adsp->mem_region) {
		dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
			&r.start, adsp->mem_size);
		return -EBUSY;
	}

	return 0;
}

static int adsp_probe(struct platform_device *pdev)
{
	struct qcom_adsp *adsp;
	struct rproc *rproc;
	int ret;

	if (!qcom_scm_is_available())
		return -EPROBE_DEFER;

	if (!qcom_scm_pas_supported(ADSP_PAS_ID)) {
		dev_err(&pdev->dev, "PAS is not available for ADSP\n");
		return -ENXIO;
	}

	rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
			    ADSP_FIRMWARE_NAME, sizeof(*adsp));
	if (!rproc) {
		dev_err(&pdev->dev, "unable to allocate remoteproc\n");
		return -ENOMEM;
	}

	rproc->fw_ops = &adsp_fw_ops;

	adsp = (struct qcom_adsp *)rproc->priv;
	adsp->dev = &pdev->dev;
	adsp->rproc = rproc;
	platform_set_drvdata(pdev, adsp);

	init_completion(&adsp->start_done);
	init_completion(&adsp->stop_done);

	ret = adsp_alloc_memory_region(adsp);
	if (ret)
		goto free_rproc;

	ret = adsp_init_regulator(adsp);
	if (ret)
		goto free_rproc;

	ret = adsp_request_irq(adsp, pdev, "wdog", adsp_wdog_interrupt);
	if (ret < 0)
		goto free_rproc;
	adsp->wdog_irq = ret;

	ret = adsp_request_irq(adsp, pdev, "fatal", adsp_fatal_interrupt);
	if (ret < 0)
		goto free_rproc;
	adsp->fatal_irq = ret;

	ret = adsp_request_irq(adsp, pdev, "ready", adsp_ready_interrupt);
	if (ret < 0)
		goto free_rproc;
	adsp->ready_irq = ret;

	ret = adsp_request_irq(adsp, pdev, "handover", adsp_handover_interrupt);
	if (ret < 0)
		goto free_rproc;
	adsp->handover_irq = ret;

	ret = adsp_request_irq(adsp, pdev, "stop-ack", adsp_stop_ack_interrupt);
	if (ret < 0)
		goto free_rproc;
	adsp->stop_ack_irq = ret;

	adsp->state = qcom_smem_state_get(&pdev->dev, "stop",
					  &adsp->stop_bit);
	if (IS_ERR(adsp->state)) {
		ret = PTR_ERR(adsp->state);
		goto free_rproc;
	}

	ret = rproc_add(rproc);
	if (ret)
		goto free_rproc;

	return 0;

free_rproc:
	rproc_put(rproc);

	return ret;
}

static int adsp_remove(struct platform_device *pdev)
{
	struct qcom_adsp *adsp = platform_get_drvdata(pdev);

	qcom_smem_state_put(adsp->state);
	rproc_del(adsp->rproc);
	rproc_put(adsp->rproc);

	return 0;
}

static const struct of_device_id adsp_of_match[] = {
	{ .compatible = "qcom,msm8974-adsp-pil" },
	{ .compatible = "qcom,msm8996-adsp-pil" },
	{ },
};

static struct platform_driver adsp_driver = {
	.probe = adsp_probe,
	.remove = adsp_remove,
	.driver = {
		.name = "qcom_adsp_pil",
		.of_match_table = adsp_of_match,
	},
};

module_platform_driver(adsp_driver);
MODULE_DESCRIPTION("Qualcomm MSM8974/MSM8996 ADSP Peripherial Image Loader");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
b9e718e9 BA	1	/*
	2	* Qualcomm ADSP Peripheral Image Loader for MSM8974 and MSM8996
	3	*
	4	* Copyright (C) 2016 Linaro Ltd
	5	* Copyright (C) 2014 Sony Mobile Communications AB
	6	* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*/
	17
	18	#include <linux/firmware.h>
	19	#include <linux/interrupt.h>
	20	#include <linux/kernel.h>
	21	#include <linux/module.h>
	22	#include <linux/of_address.h>
	23	#include <linux/of_device.h>
	24	#include <linux/platform_device.h>
	25	#include <linux/qcom_scm.h>
	26	#include <linux/regulator/consumer.h>
	27	#include <linux/remoteproc.h>
	28	#include <linux/soc/qcom/smem.h>
	29	#include <linux/soc/qcom/smem_state.h>
	30
	31	#include "qcom_mdt_loader.h"
	32	#include "remoteproc_internal.h"
	33
	34	#define ADSP_CRASH_REASON_SMEM 423
	35	#define ADSP_FIRMWARE_NAME "adsp.mdt"
	36	#define ADSP_PAS_ID 1
	37
	38	struct qcom_adsp {
	39	struct device *dev;
	40	struct rproc *rproc;
	41
	42	int wdog_irq;
	43	int fatal_irq;
	44	int ready_irq;
	45	int handover_irq;
	46	int stop_ack_irq;
	47
	48	struct qcom_smem_state *state;
	49	unsigned stop_bit;
	50
	51	struct regulator *cx_supply;
	52
	53	struct completion start_done;
	54	struct completion stop_done;
	55
	56	phys_addr_t mem_phys;
	57	phys_addr_t mem_reloc;
	58	void *mem_region;
	59	size_t mem_size;
	60	};
	61
	62	static int adsp_load(struct rproc rproc, const struct firmware fw)
	63	{
	64	struct qcom_adsp adsp = (struct qcom_adsp )rproc->priv;
65	phys_addr_t fw_addr;
66	size_t fw_size;
67	bool relocate;
68	int ret;
69
70	ret = qcom_scm_pas_init_image(ADSP_PAS_ID, fw->data, fw->size);
71	if (ret) {
72	dev_err(&rproc->dev, "invalid firmware metadata\n");
73	return ret;
74	}
75
76	ret = qcom_mdt_parse(fw, &fw_addr, &fw_size, &relocate);
77	if (ret) {
78	dev_err(&rproc->dev, "failed to parse mdt header\n");
79	return ret;
80	}
81
82	if (relocate) {
83	adsp->mem_reloc = fw_addr;
84
85	ret = qcom_scm_pas_mem_setup(ADSP_PAS_ID, adsp->mem_phys, fw_size);
86	if (ret) {
87	dev_err(&rproc->dev, "unable to setup memory for image\n");
88	return ret;
89	}
90	}
91
92	return qcom_mdt_load(rproc, fw, rproc->firmware);
93	}
94
95	static const struct rproc_fw_ops adsp_fw_ops = {
96	.find_rsc_table = qcom_mdt_find_rsc_table,
97	.load = adsp_load,
98	};
99
100	static int adsp_start(struct rproc *rproc)
101	{
102	struct qcom_adsp adsp = (struct qcom_adsp )rproc->priv;
103	int ret;
104
105	ret = regulator_enable(adsp->cx_supply);
106	if (ret)
107	return ret;
108
109	ret = qcom_scm_pas_auth_and_reset(ADSP_PAS_ID);
110	if (ret) {
111	dev_err(adsp->dev,
112	"failed to authenticate image and release reset\n");
113	goto disable_regulators;
114	}
115
116	ret = wait_for_completion_timeout(&adsp->start_done,
117	msecs_to_jiffies(5000));
118	if (!ret) {
119	dev_err(adsp->dev, "start timed out\n");
120	qcom_scm_pas_shutdown(ADSP_PAS_ID);
121	ret = -ETIMEDOUT;
122	goto disable_regulators;
123	}
124
125	ret = 0;
126
127	disable_regulators:
128	regulator_disable(adsp->cx_supply);
129
130	return ret;
131	}
132
133	static int adsp_stop(struct rproc *rproc)
134	{
135	struct qcom_adsp adsp = (struct qcom_adsp )rproc->priv;
136	int ret;
137
138	qcom_smem_state_update_bits(adsp->state,
139	BIT(adsp->stop_bit),
140	BIT(adsp->stop_bit));
141
142	ret = wait_for_completion_timeout(&adsp->stop_done,
143	msecs_to_jiffies(5000));
144	if (ret == 0)
145	dev_err(adsp->dev, "timed out on wait\n");
146
147	qcom_smem_state_update_bits(adsp->state,
148	BIT(adsp->stop_bit),
149	0);
150
151	ret = qcom_scm_pas_shutdown(ADSP_PAS_ID);
152	if (ret)
153	dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
154
155	return ret;
156	}
157
158	static void adsp_da_to_va(struct rproc rproc, u64 da, int len)
159	{
160	struct qcom_adsp adsp = (struct qcom_adsp )rproc->priv;
161	int offset;
162
163	offset = da - adsp->mem_reloc;
164	if (offset < 0 \|\| offset + len > adsp->mem_size)
165	return NULL;
166
167	return adsp->mem_region + offset;
168	}
169
170	static const struct rproc_ops adsp_ops = {
171	.start = adsp_start,
172	.stop = adsp_stop,
173	.da_to_va = adsp_da_to_va,
174	};
175
176	static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
177	{
178	struct qcom_adsp *adsp = dev;
179
180	rproc_report_crash(adsp->rproc, RPROC_WATCHDOG);
181
182	return IRQ_HANDLED;
183	}
184
185	static irqreturn_t adsp_fatal_interrupt(int irq, void *dev)
186	{
187	struct qcom_adsp *adsp = dev;
188	size_t len;
189	char *msg;
190
191	msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, ADSP_CRASH_REASON_SMEM, &len);
192	if (!IS_ERR(msg) && len > 0 && msg[0])
193	dev_err(adsp->dev, "fatal error received: %s\n", msg);
194
195	rproc_report_crash(adsp->rproc, RPROC_FATAL_ERROR);
196
197	if (!IS_ERR(msg))
198	msg[0] = '\0';
199
200	return IRQ_HANDLED;
201	}
202
203	static irqreturn_t adsp_ready_interrupt(int irq, void *dev)
204	{
205	return IRQ_HANDLED;
206	}
207
208	static irqreturn_t adsp_handover_interrupt(int irq, void *dev)
209	{
210	struct qcom_adsp *adsp = dev;
211
212	complete(&adsp->start_done);
213
214	return IRQ_HANDLED;
215	}
216
217	static irqreturn_t adsp_stop_ack_interrupt(int irq, void *dev)
218	{
219	struct qcom_adsp *adsp = dev;
220
221	complete(&adsp->stop_done);
222
223	return IRQ_HANDLED;
224	}
225
226	static int adsp_init_regulator(struct qcom_adsp *adsp)
227	{
228	adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
229	if (IS_ERR(adsp->cx_supply))
230	return PTR_ERR(adsp->cx_supply);
231
232	regulator_set_load(adsp->cx_supply, 100000);
233
234	return 0;
235	}
236
237	static int adsp_request_irq(struct qcom_adsp *adsp,
238	struct platform_device *pdev,
239	const char *name,
240	irq_handler_t thread_fn)
241	{
242	int ret;
243
244	ret = platform_get_irq_byname(pdev, name);
245	if (ret < 0) {
246	dev_err(&pdev->dev, "no %s IRQ defined\n", name);
247	return ret;
248	}
249
250	ret = devm_request_threaded_irq(&pdev->dev, ret,
251	NULL, thread_fn,
252	IRQF_ONESHOT,
253	"adsp", adsp);
254	if (ret)
255	dev_err(&pdev->dev, "request %s IRQ failed\n", name);
256
257	return ret;
258	}
259
260	static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
261	{
262	struct device_node *node;
263	struct resource r;
264	int ret;
265
266	node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
267	if (!node) {
268	dev_err(adsp->dev, "no memory-region specified\n");
269	return -EINVAL;
270	}
271
272	ret = of_address_to_resource(node, 0, &r);
273	if (ret)
274	return ret;
275
276	adsp->mem_phys = adsp->mem_reloc = r.start;
277	adsp->mem_size = resource_size(&r);
278	adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
279	if (!adsp->mem_region) {
280	dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
281	&r.start, adsp->mem_size);
282	return -EBUSY;
283	}
284
285	return 0;
286	}
287
288	static int adsp_probe(struct platform_device *pdev)
289	{
290	struct qcom_adsp *adsp;
291	struct rproc *rproc;
292	int ret;
293
294	if (!qcom_scm_is_available())
295	return -EPROBE_DEFER;
296
297	if (!qcom_scm_pas_supported(ADSP_PAS_ID)) {
298	dev_err(&pdev->dev, "PAS is not available for ADSP\n");
299	return -ENXIO;
300	}
301
302	rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
303	ADSP_FIRMWARE_NAME, sizeof(*adsp));
304	if (!rproc) {
305	dev_err(&pdev->dev, "unable to allocate remoteproc\n");
306	return -ENOMEM;
307	}
308
309	rproc->fw_ops = &adsp_fw_ops;
310
311	adsp = (struct qcom_adsp *)rproc->priv;
312	adsp->dev = &pdev->dev;
313	adsp->rproc = rproc;
314	platform_set_drvdata(pdev, adsp);
315
316	init_completion(&adsp->start_done);
317	init_completion(&adsp->stop_done);
318
319	ret = adsp_alloc_memory_region(adsp);
320	if (ret)
321	goto free_rproc;
322
323	ret = adsp_init_regulator(adsp);
324	if (ret)
325	goto free_rproc;
326
327	ret = adsp_request_irq(adsp, pdev, "wdog", adsp_wdog_interrupt);
328	if (ret < 0)
329	goto free_rproc;
330	adsp->wdog_irq = ret;
331
332	ret = adsp_request_irq(adsp, pdev, "fatal", adsp_fatal_interrupt);
333	if (ret < 0)
334	goto free_rproc;
335	adsp->fatal_irq = ret;
336
337	ret = adsp_request_irq(adsp, pdev, "ready", adsp_ready_interrupt);
338	if (ret < 0)
339	goto free_rproc;
340	adsp->ready_irq = ret;
341
342	ret = adsp_request_irq(adsp, pdev, "handover", adsp_handover_interrupt);
343	if (ret < 0)
344	goto free_rproc;
345	adsp->handover_irq = ret;
346
347	ret = adsp_request_irq(adsp, pdev, "stop-ack", adsp_stop_ack_interrupt);
348	if (ret < 0)
349	goto free_rproc;
350	adsp->stop_ack_irq = ret;
351
352	adsp->state = qcom_smem_state_get(&pdev->dev, "stop",
353	&adsp->stop_bit);
354	if (IS_ERR(adsp->state)) {
355	ret = PTR_ERR(adsp->state);
356	goto free_rproc;
357	}
358
359	ret = rproc_add(rproc);
360	if (ret)
361	goto free_rproc;
362
363	return 0;
364
365	free_rproc:
366	rproc_put(rproc);
367
368	return ret;
369	}
370
371	static int adsp_remove(struct platform_device *pdev)
372	{
373	struct qcom_adsp *adsp = platform_get_drvdata(pdev);
374
375	qcom_smem_state_put(adsp->state);
376	rproc_del(adsp->rproc);
377	rproc_put(adsp->rproc);
378
379	return 0;
380	}
381
382	static const struct of_device_id adsp_of_match[] = {
383	{ .compatible = "qcom,msm8974-adsp-pil" },
384	{ .compatible = "qcom,msm8996-adsp-pil" },
385	{ },
386	};
387
388	static struct platform_driver adsp_driver = {
389	.probe = adsp_probe,
390	.remove = adsp_remove,
391	.driver = {
392	.name = "qcom_adsp_pil",
393	.of_match_table = adsp_of_match,
394	},
395	};
396
397	module_platform_driver(adsp_driver);
398	MODULE_DESCRIPTION("Qualcomm MSM8974/MSM8996 ADSP Peripherial Image Loader");
399	MODULE_LICENSE("GPL v2");