1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * bxt-sst.c - DSP library functions for BXT platform
4 *
5 * Copyright (C) 2015-16 Intel Corp
6 * Author:Rafal Redzimski <rafal.f.redzimski@intel.com>
7 * Jeeja KP <jeeja.kp@intel.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/delay.h>
12 #include <linux/firmware.h>
13 #include <linux/device.h>
14
15 #include "../common/sst-dsp.h"
16 #include "../common/sst-dsp-priv.h"
17 #include "skl.h"
18
19 #define BXT_BASEFW_TIMEOUT 3000
20 #define BXT_ROM_INIT_TIMEOUT 70
21 #define BXT_IPC_PURGE_FW 0x01004000
22
23 #define BXT_ROM_INIT 0x5
24 #define BXT_ADSP_SRAM0_BASE 0x80000
25
26 /* Firmware status window */
27 #define BXT_ADSP_FW_STATUS BXT_ADSP_SRAM0_BASE
28 #define BXT_ADSP_ERROR_CODE (BXT_ADSP_FW_STATUS + 0x4)
29
30 #define BXT_ADSP_SRAM1_BASE 0xA0000
31
32 #define BXT_INSTANCE_ID 0
33 #define BXT_BASE_FW_MODULE_ID 0
34
35 #define BXT_ADSP_FW_BIN_HDR_OFFSET 0x2000
36
37 /* Delay before scheduling D0i3 entry */
38 #define BXT_D0I3_DELAY 5000
39
40 static unsigned int bxt_get_errorcode(struct sst_dsp *ctx)
41 {
42 return sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE);
43 }
44
45 static int
46 bxt_load_library(struct sst_dsp *ctx, struct skl_lib_info *linfo, int lib_count)
47 {
48 struct snd_dma_buffer dmab;
49 struct skl_dev *skl = ctx->thread_context;
50 struct firmware stripped_fw;
51 int ret = 0, i, dma_id, stream_tag;
52
53 /* library indices start from 1 to N. 0 represents base FW */
54 for (i = 1; i < lib_count; i++) {
55 ret = skl_prepare_lib_load(skl, &skl->lib_info[i], &stripped_fw,
56 BXT_ADSP_FW_BIN_HDR_OFFSET, i);
57 if (ret < 0)
58 goto load_library_failed;
59
60 stream_tag = ctx->dsp_ops.prepare(ctx->dev, 0x40,
61 stripped_fw.size, &dmab);
62 if (stream_tag <= 0) {
63 dev_err(ctx->dev, "Lib prepare DMA err: %x\n",
64 stream_tag);
65 ret = stream_tag;
66 goto load_library_failed;
67 }
68
69 dma_id = stream_tag - 1;
70 memcpy(dmab.area, stripped_fw.data, stripped_fw.size);
71
72 ctx->dsp_ops.trigger(ctx->dev, true, stream_tag);
73 ret = skl_sst_ipc_load_library(&skl->ipc, dma_id, i, true);
74 if (ret < 0)
75 dev_err(ctx->dev, "IPC Load Lib for %s fail: %d\n",
76 linfo[i].name, ret);
77
78 ctx->dsp_ops.trigger(ctx->dev, false, stream_tag);
79 ctx->dsp_ops.cleanup(ctx->dev, &dmab, stream_tag);
80 }
81
82 return ret;
83
84 load_library_failed:
85 skl_release_library(linfo, lib_count);
86 return ret;
87 }
88
89 /*
90 * First boot sequence has some extra steps. Core 0 waits for power
91 * status on core 1, so power up core 1 also momentarily, keep it in
92 * reset/stall and then turn it off
93 */
94 static int sst_bxt_prepare_fw(struct sst_dsp *ctx,
95 const void *fwdata, u32 fwsize)
96 {
97 int stream_tag, ret;
98
99 stream_tag = ctx->dsp_ops.prepare(ctx->dev, 0x40, fwsize, &ctx->dmab);
100 if (stream_tag <= 0) {
101 dev_err(ctx->dev, "Failed to prepare DMA FW loading err: %x\n",
102 stream_tag);
103 return stream_tag;
104 }
105
106 ctx->dsp_ops.stream_tag = stream_tag;
107 memcpy(ctx->dmab.area, fwdata, fwsize);
108
109 /* Step 1: Power up core 0 and core1 */
110 ret = skl_dsp_core_power_up(ctx, SKL_DSP_CORE0_MASK |
111 SKL_DSP_CORE_MASK(1));
112 if (ret < 0) {
113 dev_err(ctx->dev, "dsp core0/1 power up failed\n");
114 goto base_fw_load_failed;
115 }
116
117 /* Step 2: Purge FW request */
118 sst_dsp_shim_write(ctx, SKL_ADSP_REG_HIPCI, SKL_ADSP_REG_HIPCI_BUSY |
119 (BXT_IPC_PURGE_FW | ((stream_tag - 1) << 9)));
120
121 /* Step 3: Unset core0 reset state & unstall/run core0 */
122 ret = skl_dsp_start_core(ctx, SKL_DSP_CORE0_MASK);
123 if (ret < 0) {
124 dev_err(ctx->dev, "Start dsp core failed ret: %d\n", ret);
125 ret = -EIO;
126 goto base_fw_load_failed;
127 }
128
129 /* Step 4: Wait for DONE Bit */
130 ret = sst_dsp_register_poll(ctx, SKL_ADSP_REG_HIPCIE,
131 SKL_ADSP_REG_HIPCIE_DONE,
132 SKL_ADSP_REG_HIPCIE_DONE,
133 BXT_INIT_TIMEOUT, "HIPCIE Done");
134 if (ret < 0) {
135 dev_err(ctx->dev, "Timeout for Purge Request%d\n", ret);
136 goto base_fw_load_failed;
137 }
138
139 /* Step 5: power down core1 */
140 ret = skl_dsp_core_power_down(ctx, SKL_DSP_CORE_MASK(1));
141 if (ret < 0) {
142 dev_err(ctx->dev, "dsp core1 power down failed\n");
143 goto base_fw_load_failed;
144 }
145
146 /* Step 6: Enable Interrupt */
147 skl_ipc_int_enable(ctx);
148 skl_ipc_op_int_enable(ctx);
149
150 /* Step 7: Wait for ROM init */
151 ret = sst_dsp_register_poll(ctx, BXT_ADSP_FW_STATUS, SKL_FW_STS_MASK,
152 SKL_FW_INIT, BXT_ROM_INIT_TIMEOUT, "ROM Load");
153 if (ret < 0) {
154 dev_err(ctx->dev, "Timeout for ROM init, ret:%d\n", ret);
155 goto base_fw_load_failed;
156 }
157
158 return ret;
159
160 base_fw_load_failed:
161 ctx->dsp_ops.cleanup(ctx->dev, &ctx->dmab, stream_tag);
162 skl_dsp_core_power_down(ctx, SKL_DSP_CORE_MASK(1));
163 skl_dsp_disable_core(ctx, SKL_DSP_CORE0_MASK);
164 return ret;
165 }
166
167 static int sst_transfer_fw_host_dma(struct sst_dsp *ctx)
168 {
169 int ret;
170
171 ctx->dsp_ops.trigger(ctx->dev, true, ctx->dsp_ops.stream_tag);
172 ret = sst_dsp_register_poll(ctx, BXT_ADSP_FW_STATUS, SKL_FW_STS_MASK,
173 BXT_ROM_INIT, BXT_BASEFW_TIMEOUT, "Firmware boot");
174
175 ctx->dsp_ops.trigger(ctx->dev, false, ctx->dsp_ops.stream_tag);
176 ctx->dsp_ops.cleanup(ctx->dev, &ctx->dmab, ctx->dsp_ops.stream_tag);
177
178 return ret;
179 }
180
181 static int bxt_load_base_firmware(struct sst_dsp *ctx)
182 {
183 struct firmware stripped_fw;
184 struct skl_dev *skl = ctx->thread_context;
185 int ret, i;
186
187 if (ctx->fw == NULL) {
188 ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev);
189 if (ret < 0) {
190 dev_err(ctx->dev, "Request firmware failed %d\n", ret);
191 return ret;
192 }
193 }
194
195 /* prase uuids on first boot */
196 if (skl->is_first_boot) {
197 ret = snd_skl_parse_uuids(ctx, ctx->fw, BXT_ADSP_FW_BIN_HDR_OFFSET, 0);
198 if (ret < 0)
199 goto sst_load_base_firmware_failed;
200 }
201
202 stripped_fw.data = ctx->fw->data;
203 stripped_fw.size = ctx->fw->size;
204 skl_dsp_strip_extended_manifest(&stripped_fw);
205
206
207 for (i = 0; i < BXT_FW_ROM_INIT_RETRY; i++) {
208 ret = sst_bxt_prepare_fw(ctx, stripped_fw.data, stripped_fw.size);
209 if (ret == 0)
210 break;
211 }
212
213 if (ret < 0) {
214 dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n",
215 sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE),
216 sst_dsp_shim_read(ctx, BXT_ADSP_FW_STATUS));
217
218 dev_err(ctx->dev, "Core En/ROM load fail:%d\n", ret);
219 goto sst_load_base_firmware_failed;
220 }
221
222 ret = sst_transfer_fw_host_dma(ctx);
223 if (ret < 0) {
224 dev_err(ctx->dev, "Transfer firmware failed %d\n", ret);
225 dev_info(ctx->dev, "Error code=0x%x: FW status=0x%x\n",
226 sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE),
227 sst_dsp_shim_read(ctx, BXT_ADSP_FW_STATUS));
228
229 skl_dsp_disable_core(ctx, SKL_DSP_CORE0_MASK);
230 } else {
231 dev_dbg(ctx->dev, "Firmware download successful\n");
232 ret = wait_event_timeout(skl->boot_wait, skl->boot_complete,
233 msecs_to_jiffies(SKL_IPC_BOOT_MSECS));
234 if (ret == 0) {
235 dev_err(ctx->dev, "DSP boot fail, FW Ready timeout\n");
236 skl_dsp_disable_core(ctx, SKL_DSP_CORE0_MASK);
237 ret = -EIO;
238 } else {
239 ret = 0;
240 skl->fw_loaded = true;
241 }
242 }
243
244 return ret;
245
246 sst_load_base_firmware_failed:
247 release_firmware(ctx->fw);
248 ctx->fw = NULL;
249 return ret;
250 }
251
252 /*
253 * Decide the D0i3 state that can be targeted based on the usecase
254 * ref counts and DSP state
255 *
256 * Decision Matrix: (X= dont care; state = target state)
257 *
258 * DSP state != SKL_DSP_RUNNING ; state = no d0i3
259 *
260 * DSP state == SKL_DSP_RUNNING , the following matrix applies
261 * non_d0i3 >0; streaming =X; non_streaming =X; state = no d0i3
262 * non_d0i3 =X; streaming =0; non_streaming =0; state = no d0i3
263 * non_d0i3 =0; streaming >0; non_streaming =X; state = streaming d0i3
264 * non_d0i3 =0; streaming =0; non_streaming =X; state = non-streaming d0i3
265 */
266 static int bxt_d0i3_target_state(struct sst_dsp *ctx)
267 {
268 struct skl_dev *skl = ctx->thread_context;
269 struct skl_d0i3_data *d0i3 = &skl->d0i3;
270
271 if (skl->cores.state[SKL_DSP_CORE0_ID] != SKL_DSP_RUNNING)
272 return SKL_DSP_D0I3_NONE;
273
274 if (d0i3->non_d0i3)
275 return SKL_DSP_D0I3_NONE;
276 else if (d0i3->streaming)
277 return SKL_DSP_D0I3_STREAMING;
278 else if (d0i3->non_streaming)
279 return SKL_DSP_D0I3_NON_STREAMING;
280 else
281 return SKL_DSP_D0I3_NONE;
282 }
283
284 static void bxt_set_dsp_D0i3(struct work_struct *work)
285 {
286 int ret;
287 struct skl_ipc_d0ix_msg msg;
288 struct skl_dev *skl = container_of(work,
289 struct skl_dev, d0i3.work.work);
290 struct sst_dsp *ctx = skl->dsp;
291 struct skl_d0i3_data *d0i3 = &skl->d0i3;
292 int target_state;
293
294 dev_dbg(ctx->dev, "In %s:\n", __func__);
295
296 /* D0i3 entry allowed only if core 0 alone is running */
297 if (skl_dsp_get_enabled_cores(ctx) != SKL_DSP_CORE0_MASK) {
298 dev_warn(ctx->dev,
299 "D0i3 allowed when only core0 running:Exit\n");
300 return;
301 }
302
303 target_state = bxt_d0i3_target_state(ctx);
304 if (target_state == SKL_DSP_D0I3_NONE)
305 return;
306
307 msg.instance_id = 0;
308 msg.module_id = 0;
309 msg.wake = 1;
310 msg.streaming = 0;
311 if (target_state == SKL_DSP_D0I3_STREAMING)
312 msg.streaming = 1;
313
314 ret = skl_ipc_set_d0ix(&skl->ipc, &msg);
315
316 if (ret < 0) {
317 dev_err(ctx->dev, "Failed to set DSP to D0i3 state\n");
318 return;
319 }
320
321 /* Set Vendor specific register D0I3C.I3 to enable D0i3*/
322 if (skl->update_d0i3c)
323 skl->update_d0i3c(skl->dev, true);
324
325 d0i3->state = target_state;
326 skl->cores.state[SKL_DSP_CORE0_ID] = SKL_DSP_RUNNING_D0I3;
327 }
328
329 static int bxt_schedule_dsp_D0i3(struct sst_dsp *ctx)
330 {
331 struct skl_dev *skl = ctx->thread_context;
332 struct skl_d0i3_data *d0i3 = &skl->d0i3;
333
334 /* Schedule D0i3 only if the usecase ref counts are appropriate */
335 if (bxt_d0i3_target_state(ctx) != SKL_DSP_D0I3_NONE) {
336
337 dev_dbg(ctx->dev, "%s: Schedule D0i3\n", __func__);
338
339 schedule_delayed_work(&d0i3->work,
340 msecs_to_jiffies(BXT_D0I3_DELAY));
341 }
342
343 return 0;
344 }
345
346 static int bxt_set_dsp_D0i0(struct sst_dsp *ctx)
347 {
348 int ret;
349 struct skl_ipc_d0ix_msg msg;
350 struct skl_dev *skl = ctx->thread_context;
351
352 dev_dbg(ctx->dev, "In %s:\n", __func__);
353
354 /* First Cancel any pending attempt to put DSP to D0i3 */
355 cancel_delayed_work_sync(&skl->d0i3.work);
356
357 /* If DSP is currently in D0i3, bring it to D0i0 */
358 if (skl->cores.state[SKL_DSP_CORE0_ID] != SKL_DSP_RUNNING_D0I3)
359 return 0;
360
361 dev_dbg(ctx->dev, "Set DSP to D0i0\n");
362
363 msg.instance_id = 0;
364 msg.module_id = 0;
365 msg.streaming = 0;
366 msg.wake = 0;
367
368 if (skl->d0i3.state == SKL_DSP_D0I3_STREAMING)
369 msg.streaming = 1;
370
371 /* Clear Vendor specific register D0I3C.I3 to disable D0i3*/
372 if (skl->update_d0i3c)
373 skl->update_d0i3c(skl->dev, false);
374
375 ret = skl_ipc_set_d0ix(&skl->ipc, &msg);
376 if (ret < 0) {
377 dev_err(ctx->dev, "Failed to set DSP to D0i0\n");
378 return ret;
379 }
380
381 skl->cores.state[SKL_DSP_CORE0_ID] = SKL_DSP_RUNNING;
382 skl->d0i3.state = SKL_DSP_D0I3_NONE;
383
384 return 0;
385 }
386
387 static int bxt_set_dsp_D0(struct sst_dsp *ctx, unsigned int core_id)
388 {
389 struct skl_dev *skl = ctx->thread_context;
390 int ret;
391 struct skl_ipc_dxstate_info dx;
392 unsigned int core_mask = SKL_DSP_CORE_MASK(core_id);
393
394 if (skl->fw_loaded == false) {
395 skl->boot_complete = false;
396 ret = bxt_load_base_firmware(ctx);
397 if (ret < 0) {
398 dev_err(ctx->dev, "reload fw failed: %d\n", ret);
399 return ret;
400 }
401
402 if (skl->lib_count > 1) {
403 ret = bxt_load_library(ctx, skl->lib_info,
404 skl->lib_count);
405 if (ret < 0) {
406 dev_err(ctx->dev, "reload libs failed: %d\n", ret);
407 return ret;
408 }
409 }
410 skl->cores.state[core_id] = SKL_DSP_RUNNING;
411 return ret;
412 }
413
414 /* If core 0 is being turned on, turn on core 1 as well */
415 if (core_id == SKL_DSP_CORE0_ID)
416 ret = skl_dsp_core_power_up(ctx, core_mask |
417 SKL_DSP_CORE_MASK(1));
418 else
419 ret = skl_dsp_core_power_up(ctx, core_mask);
420
421 if (ret < 0)
422 goto err;
423
424 if (core_id == SKL_DSP_CORE0_ID) {
425
426 /*
427 * Enable interrupt after SPA is set and before
428 * DSP is unstalled
429 */
430 skl_ipc_int_enable(ctx);
431 skl_ipc_op_int_enable(ctx);
432 skl->boot_complete = false;
433 }
434
435 ret = skl_dsp_start_core(ctx, core_mask);
436 if (ret < 0)
437 goto err;
438
439 if (core_id == SKL_DSP_CORE0_ID) {
440 ret = wait_event_timeout(skl->boot_wait,
441 skl->boot_complete,
442 msecs_to_jiffies(SKL_IPC_BOOT_MSECS));
443
444 /* If core 1 was turned on for booting core 0, turn it off */
445 skl_dsp_core_power_down(ctx, SKL_DSP_CORE_MASK(1));
446 if (ret == 0) {
447 dev_err(ctx->dev, "%s: DSP boot timeout\n", __func__);
448 dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n",
449 sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE),
450 sst_dsp_shim_read(ctx, BXT_ADSP_FW_STATUS));
451 dev_err(ctx->dev, "Failed to set core0 to D0 state\n");
452 ret = -EIO;
453 goto err;
454 }
455 }
456
457 /* Tell FW if additional core in now On */
458
459 if (core_id != SKL_DSP_CORE0_ID) {
460 dx.core_mask = core_mask;
461 dx.dx_mask = core_mask;
462
463 ret = skl_ipc_set_dx(&skl->ipc, BXT_INSTANCE_ID,
464 BXT_BASE_FW_MODULE_ID, &dx);
465 if (ret < 0) {
466 dev_err(ctx->dev, "IPC set_dx for core %d fail: %d\n",
467 core_id, ret);
468 goto err;
469 }
470 }
471
472 skl->cores.state[core_id] = SKL_DSP_RUNNING;
473 return 0;
474 err:
475 if (core_id == SKL_DSP_CORE0_ID)
476 core_mask |= SKL_DSP_CORE_MASK(1);
477 skl_dsp_disable_core(ctx, core_mask);
478
479 return ret;
480 }
481
482 static int bxt_set_dsp_D3(struct sst_dsp *ctx, unsigned int core_id)
483 {
484 int ret;
485 struct skl_ipc_dxstate_info dx;
486 struct skl_dev *skl = ctx->thread_context;
487 unsigned int core_mask = SKL_DSP_CORE_MASK(core_id);
488
489 dx.core_mask = core_mask;
490 dx.dx_mask = SKL_IPC_D3_MASK;
491
492 dev_dbg(ctx->dev, "core mask=%x dx_mask=%x\n",
493 dx.core_mask, dx.dx_mask);
494
495 ret = skl_ipc_set_dx(&skl->ipc, BXT_INSTANCE_ID,
496 BXT_BASE_FW_MODULE_ID, &dx);
497 if (ret < 0) {
498 dev_err(ctx->dev,
499 "Failed to set DSP to D3:core id = %d;Continue reset\n",
500 core_id);
501 /*
502 * In case of D3 failure, re-download the firmware, so set
503 * fw_loaded to false.
504 */
505 skl->fw_loaded = false;
506 }
507
508 if (core_id == SKL_DSP_CORE0_ID) {
509 /* disable Interrupt */
510 skl_ipc_op_int_disable(ctx);
511 skl_ipc_int_disable(ctx);
512 }
513 ret = skl_dsp_disable_core(ctx, core_mask);
514 if (ret < 0) {
515 dev_err(ctx->dev, "Failed to disable core %d\n", ret);
516 return ret;
517 }
518 skl->cores.state[core_id] = SKL_DSP_RESET;
519 return 0;
520 }
521
522 static const struct skl_dsp_fw_ops bxt_fw_ops = {
523 .set_state_D0 = bxt_set_dsp_D0,
524 .set_state_D3 = bxt_set_dsp_D3,
525 .set_state_D0i3 = bxt_schedule_dsp_D0i3,
526 .set_state_D0i0 = bxt_set_dsp_D0i0,
527 .load_fw = bxt_load_base_firmware,
528 .get_fw_errcode = bxt_get_errorcode,
529 .load_library = bxt_load_library,
530 };
531
532 static struct sst_ops skl_ops = {
533 .irq_handler = skl_dsp_sst_interrupt,
534 .write = sst_shim32_write,
535 .read = sst_shim32_read,
536 .free = skl_dsp_free,
537 };
538
539 static struct sst_dsp_device skl_dev = {
540 .thread = skl_dsp_irq_thread_handler,
541 .ops = &skl_ops,
542 };
543
544 int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
545 const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
546 struct skl_dev **dsp)
547 {
548 struct skl_dev *skl;
549 struct sst_dsp *sst;
550 int ret;
551
552 ret = skl_sst_ctx_init(dev, irq, fw_name, dsp_ops, dsp, &skl_dev);
553 if (ret < 0) {
554 dev_err(dev, "%s: no device\n", __func__);
555 return ret;
556 }
557
558 skl = *dsp;
559 sst = skl->dsp;
560 sst->fw_ops = bxt_fw_ops;
561 sst->addr.lpe = mmio_base;
562 sst->addr.shim = mmio_base;
563 sst->addr.sram0_base = BXT_ADSP_SRAM0_BASE;
564 sst->addr.sram1_base = BXT_ADSP_SRAM1_BASE;
565 sst->addr.w0_stat_sz = SKL_ADSP_W0_STAT_SZ;
566 sst->addr.w0_up_sz = SKL_ADSP_W0_UP_SZ;
567
568 sst_dsp_mailbox_init(sst, (BXT_ADSP_SRAM0_BASE + SKL_ADSP_W0_STAT_SZ),
569 SKL_ADSP_W0_UP_SZ, BXT_ADSP_SRAM1_BASE, SKL_ADSP_W1_SZ);
570
571 ret = skl_ipc_init(dev, skl);
572 if (ret) {
573 skl_dsp_free(sst);
574 return ret;
575 }
576
577 /* set the D0i3 check */
578 skl->ipc.ops.check_dsp_lp_on = skl_ipc_check_D0i0;
579
580 skl->boot_complete = false;
581 init_waitqueue_head(&skl->boot_wait);
582 INIT_DELAYED_WORK(&skl->d0i3.work, bxt_set_dsp_D0i3);
583 skl->d0i3.state = SKL_DSP_D0I3_NONE;
584
585 return skl_dsp_acquire_irq(sst);
586 }
587 EXPORT_SYMBOL_GPL(bxt_sst_dsp_init);
588
589 int bxt_sst_init_fw(struct device *dev, struct skl_dev *skl)
590 {
591 int ret;
592 struct sst_dsp *sst = skl->dsp;
593
594 ret = sst->fw_ops.load_fw(sst);
595 if (ret < 0) {
596 dev_err(dev, "Load base fw failed: %x\n", ret);
597 return ret;
598 }
599
600 skl_dsp_init_core_state(sst);
601
602 if (skl->lib_count > 1) {
603 ret = sst->fw_ops.load_library(sst, skl->lib_info,
604 skl->lib_count);
605 if (ret < 0) {
606 dev_err(dev, "Load Library failed : %x\n", ret);
607 return ret;
608 }
609 }
610 skl->is_first_boot = false;
611
612 return 0;
613 }
614 EXPORT_SYMBOL_GPL(bxt_sst_init_fw);
615
616 void bxt_sst_dsp_cleanup(struct device *dev, struct skl_dev *skl)
617 {
618
619 skl_release_library(skl->lib_info, skl->lib_count);
620 if (skl->dsp->fw)
621 release_firmware(skl->dsp->fw);
622 skl_freeup_uuid_list(skl);
623 skl_ipc_free(&skl->ipc);
624 skl->dsp->ops->free(skl->dsp);
625 }
626 EXPORT_SYMBOL_GPL(bxt_sst_dsp_cleanup);
627
628 MODULE_LICENSE("GPL v2");
629 MODULE_DESCRIPTION("Intel Broxton IPC driver");
630
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