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1/*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#include <linux/irqdomain.h>
27#include <linux/pci.h>
28#include <linux/pm_domain.h>
29#include <linux/platform_device.h>
30#include <sound/designware_i2s.h>
31#include <sound/pcm.h>
32#include <linux/acpi.h>
33#include <linux/dmi.h>
34
35#include "amdgpu.h"
36#include "atom.h"
37#include "amdgpu_acp.h"
38
39#include "acp_gfx_if.h"
40
41#define ST_JADEITE 1
42#define ACP_TILE_ON_MASK 0x03
43#define ACP_TILE_OFF_MASK 0x02
44#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
45#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
46
47#define ACP_TILE_P1_MASK 0x3e
48#define ACP_TILE_P2_MASK 0x3d
49#define ACP_TILE_DSP0_MASK 0x3b
50#define ACP_TILE_DSP1_MASK 0x37
51
52#define ACP_TILE_DSP2_MASK 0x2f
53
54#define ACP_DMA_REGS_END 0x146c0
55#define ACP_I2S_PLAY_REGS_START 0x14840
56#define ACP_I2S_PLAY_REGS_END 0x148b4
57#define ACP_I2S_CAP_REGS_START 0x148b8
58#define ACP_I2S_CAP_REGS_END 0x1496c
59
60#define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac
61#define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8
62#define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c
63#define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68
64#define ACP_BT_PLAY_REGS_START 0x14970
65#define ACP_BT_PLAY_REGS_END 0x14a24
66#define ACP_BT_COMP1_REG_OFFSET 0xac
67#define ACP_BT_COMP2_REG_OFFSET 0xa8
68
69#define mmACP_PGFSM_RETAIN_REG 0x51c9
70#define mmACP_PGFSM_CONFIG_REG 0x51ca
71#define mmACP_PGFSM_READ_REG_0 0x51cc
72
73#define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8
74#define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9
75#define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa
76#define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb
77
78#define mmACP_CONTROL 0x5131
79#define mmACP_STATUS 0x5133
80#define mmACP_SOFT_RESET 0x5134
81#define ACP_CONTROL__ClkEn_MASK 0x1
82#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
83#define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
84#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
85#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
86
87#define ACP_TIMEOUT_LOOP 0x000000FF
88#define ACP_DEVS 4
89#define ACP_SRC_ID 162
90
91static unsigned long acp_machine_id;
92
93enum {
94 ACP_TILE_P1 = 0,
95 ACP_TILE_P2,
96 ACP_TILE_DSP0,
97 ACP_TILE_DSP1,
98 ACP_TILE_DSP2,
99};
100
101static int acp_sw_init(void *handle)
102{
103 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
104
105 adev->acp.parent = adev->dev;
106
107 adev->acp.cgs_device =
108 amdgpu_cgs_create_device(adev);
109 if (!adev->acp.cgs_device)
110 return -EINVAL;
111
112 return 0;
113}
114
115static int acp_sw_fini(void *handle)
116{
117 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
118
119 if (adev->acp.cgs_device)
120 amdgpu_cgs_destroy_device(adev->acp.cgs_device);
121
122 return 0;
123}
124
125struct acp_pm_domain {
126 void *adev;
127 struct generic_pm_domain gpd;
128};
129
130static int acp_poweroff(struct generic_pm_domain *genpd)
131{
132 struct acp_pm_domain *apd;
133 struct amdgpu_device *adev;
134
135 apd = container_of(genpd, struct acp_pm_domain, gpd);
136 adev = apd->adev;
137 /* call smu to POWER GATE ACP block
138 * smu will
139 * 1. turn off the acp clock
140 * 2. power off the acp tiles
141 * 3. check and enter ulv state
142 */
143 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
144 return 0;
145}
146
147static int acp_poweron(struct generic_pm_domain *genpd)
148{
149 struct acp_pm_domain *apd;
150 struct amdgpu_device *adev;
151
152 apd = container_of(genpd, struct acp_pm_domain, gpd);
153 adev = apd->adev;
154 /* call smu to UNGATE ACP block
155 * smu will
156 * 1. exit ulv
157 * 2. turn on acp clock
158 * 3. power on acp tiles
159 */
160 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
161 return 0;
162}
163
164static int acp_genpd_add_device(struct device *dev, void *data)
165{
166 struct generic_pm_domain *gpd = data;
167 int ret;
168
169 ret = pm_genpd_add_device(gpd, dev);
170 if (ret)
171 dev_err(dev, "Failed to add dev to genpd %d\n", ret);
172
173 return ret;
174}
175
176static int acp_genpd_remove_device(struct device *dev, void *data)
177{
178 int ret;
179
180 ret = pm_genpd_remove_device(dev);
181 if (ret)
182 dev_err(dev, "Failed to remove dev from genpd %d\n", ret);
183
184 /* Continue to remove */
185 return 0;
186}
187
188static int acp_quirk_cb(const struct dmi_system_id *id)
189{
190 acp_machine_id = ST_JADEITE;
191 return 1;
192}
193
194static const struct dmi_system_id acp_quirk_table[] = {
195 {
196 .callback = acp_quirk_cb,
197 .matches = {
198 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMD"),
199 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jadeite"),
200 }
201 },
202 {
203 .callback = acp_quirk_cb,
204 .matches = {
205 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "IP3 Technology CO.,Ltd."),
206 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN1D"),
207 },
208 },
209 {
210 .callback = acp_quirk_cb,
211 .matches = {
212 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Standard"),
213 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN10"),
214 },
215 },
216 {}
217};
218
219/**
220 * acp_hw_init - start and test ACP block
221 *
222 * @handle: handle used to pass amdgpu_device pointer
223 *
224 */
225static int acp_hw_init(void *handle)
226{
227 int r;
228 u64 acp_base;
229 u32 val = 0;
230 u32 count = 0;
231 struct i2s_platform_data *i2s_pdata = NULL;
232
233 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
234
235 const struct amdgpu_ip_block *ip_block =
236 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP);
237
238 if (!ip_block)
239 return -EINVAL;
240
241 r = amd_acp_hw_init(adev->acp.cgs_device,
242 ip_block->version->major, ip_block->version->minor);
243 /* -ENODEV means board uses AZ rather than ACP */
244 if (r == -ENODEV) {
245 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
246 return 0;
247 } else if (r) {
248 return r;
249 }
250
251 if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
252 return -EINVAL;
253
254 acp_base = adev->rmmio_base;
255 adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
256 if (!adev->acp.acp_genpd)
257 return -ENOMEM;
258
259 adev->acp.acp_genpd->gpd.name = "ACP_AUDIO";
260 adev->acp.acp_genpd->gpd.power_off = acp_poweroff;
261 adev->acp.acp_genpd->gpd.power_on = acp_poweron;
262 adev->acp.acp_genpd->adev = adev;
263
264 pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
265 dmi_check_system(acp_quirk_table);
266 switch (acp_machine_id) {
267 case ST_JADEITE:
268 {
269 adev->acp.acp_cell = kcalloc(2, sizeof(struct mfd_cell),
270 GFP_KERNEL);
271 if (!adev->acp.acp_cell) {
272 r = -ENOMEM;
273 goto failure;
274 }
275
276 adev->acp.acp_res = kcalloc(3, sizeof(struct resource), GFP_KERNEL);
277 if (!adev->acp.acp_res) {
278 r = -ENOMEM;
279 goto failure;
280 }
281
282 i2s_pdata = kcalloc(1, sizeof(struct i2s_platform_data), GFP_KERNEL);
283 if (!i2s_pdata) {
284 r = -ENOMEM;
285 goto failure;
286 }
287
288 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
289 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
290 i2s_pdata[0].cap = DWC_I2S_PLAY | DWC_I2S_RECORD;
291 i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000;
292 i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET;
293 i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET;
294
295 adev->acp.acp_res[0].name = "acp2x_dma";
296 adev->acp.acp_res[0].flags = IORESOURCE_MEM;
297 adev->acp.acp_res[0].start = acp_base;
298 adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END;
299
300 adev->acp.acp_res[1].name = "acp2x_dw_i2s_play_cap";
301 adev->acp.acp_res[1].flags = IORESOURCE_MEM;
302 adev->acp.acp_res[1].start = acp_base + ACP_I2S_CAP_REGS_START;
303 adev->acp.acp_res[1].end = acp_base + ACP_I2S_CAP_REGS_END;
304
305 adev->acp.acp_res[2].name = "acp2x_dma_irq";
306 adev->acp.acp_res[2].flags = IORESOURCE_IRQ;
307 adev->acp.acp_res[2].start = amdgpu_irq_create_mapping(adev, 162);
308 adev->acp.acp_res[2].end = adev->acp.acp_res[2].start;
309
310 adev->acp.acp_cell[0].name = "acp_audio_dma";
311 adev->acp.acp_cell[0].num_resources = 3;
312 adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
313 adev->acp.acp_cell[0].platform_data = &adev->asic_type;
314 adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
315
316 adev->acp.acp_cell[1].name = "designware-i2s";
317 adev->acp.acp_cell[1].num_resources = 1;
318 adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
319 adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
320 adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data);
321 r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, 2);
322 if (r)
323 goto failure;
324 r = device_for_each_child(adev->acp.parent, &adev->acp.acp_genpd->gpd,
325 acp_genpd_add_device);
326 if (r)
327 goto failure;
328 break;
329 }
330 default:
331 adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
332 GFP_KERNEL);
333
334 if (!adev->acp.acp_cell) {
335 r = -ENOMEM;
336 goto failure;
337 }
338
339 adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
340 if (!adev->acp.acp_res) {
341 r = -ENOMEM;
342 goto failure;
343 }
344
345 i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
346 if (!i2s_pdata) {
347 r = -ENOMEM;
348 goto failure;
349 }
350
351 switch (adev->asic_type) {
352 case CHIP_STONEY:
353 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
354 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
355 break;
356 default:
357 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
358 }
359 i2s_pdata[0].cap = DWC_I2S_PLAY;
360 i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000;
361 i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET;
362 i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET;
363 switch (adev->asic_type) {
364 case CHIP_STONEY:
365 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
366 DW_I2S_QUIRK_COMP_PARAM1 |
367 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
368 break;
369 default:
370 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
371 DW_I2S_QUIRK_COMP_PARAM1;
372 }
373
374 i2s_pdata[1].cap = DWC_I2S_RECORD;
375 i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000;
376 i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET;
377 i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET;
378
379 i2s_pdata[2].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
380 switch (adev->asic_type) {
381 case CHIP_STONEY:
382 i2s_pdata[2].quirks |= DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
383 break;
384 default:
385 break;
386 }
387
388 i2s_pdata[2].cap = DWC_I2S_PLAY | DWC_I2S_RECORD;
389 i2s_pdata[2].snd_rates = SNDRV_PCM_RATE_8000_96000;
390 i2s_pdata[2].i2s_reg_comp1 = ACP_BT_COMP1_REG_OFFSET;
391 i2s_pdata[2].i2s_reg_comp2 = ACP_BT_COMP2_REG_OFFSET;
392
393 adev->acp.acp_res[0].name = "acp2x_dma";
394 adev->acp.acp_res[0].flags = IORESOURCE_MEM;
395 adev->acp.acp_res[0].start = acp_base;
396 adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END;
397
398 adev->acp.acp_res[1].name = "acp2x_dw_i2s_play";
399 adev->acp.acp_res[1].flags = IORESOURCE_MEM;
400 adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START;
401 adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END;
402
403 adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap";
404 adev->acp.acp_res[2].flags = IORESOURCE_MEM;
405 adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START;
406 adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END;
407
408 adev->acp.acp_res[3].name = "acp2x_dw_bt_i2s_play_cap";
409 adev->acp.acp_res[3].flags = IORESOURCE_MEM;
410 adev->acp.acp_res[3].start = acp_base + ACP_BT_PLAY_REGS_START;
411 adev->acp.acp_res[3].end = acp_base + ACP_BT_PLAY_REGS_END;
412
413 adev->acp.acp_res[4].name = "acp2x_dma_irq";
414 adev->acp.acp_res[4].flags = IORESOURCE_IRQ;
415 adev->acp.acp_res[4].start = amdgpu_irq_create_mapping(adev, 162);
416 adev->acp.acp_res[4].end = adev->acp.acp_res[4].start;
417
418 adev->acp.acp_cell[0].name = "acp_audio_dma";
419 adev->acp.acp_cell[0].num_resources = 5;
420 adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
421 adev->acp.acp_cell[0].platform_data = &adev->asic_type;
422 adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
423
424 adev->acp.acp_cell[1].name = "designware-i2s";
425 adev->acp.acp_cell[1].num_resources = 1;
426 adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
427 adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
428 adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data);
429
430 adev->acp.acp_cell[2].name = "designware-i2s";
431 adev->acp.acp_cell[2].num_resources = 1;
432 adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2];
433 adev->acp.acp_cell[2].platform_data = &i2s_pdata[1];
434 adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data);
435
436 adev->acp.acp_cell[3].name = "designware-i2s";
437 adev->acp.acp_cell[3].num_resources = 1;
438 adev->acp.acp_cell[3].resources = &adev->acp.acp_res[3];
439 adev->acp.acp_cell[3].platform_data = &i2s_pdata[2];
440 adev->acp.acp_cell[3].pdata_size = sizeof(struct i2s_platform_data);
441
442 r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, ACP_DEVS);
443 if (r)
444 goto failure;
445
446 r = device_for_each_child(adev->acp.parent, &adev->acp.acp_genpd->gpd,
447 acp_genpd_add_device);
448 if (r)
449 goto failure;
450 }
451
452 /* Assert Soft reset of ACP */
453 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
454
455 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
456 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
457
458 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
459 while (true) {
460 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
461 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
462 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
463 break;
464 if (--count == 0) {
465 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
466 r = -ETIMEDOUT;
467 goto failure;
468 }
469 udelay(100);
470 }
471 /* Enable clock to ACP and wait until the clock is enabled */
472 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
473 val = val | ACP_CONTROL__ClkEn_MASK;
474 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
475
476 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
477
478 while (true) {
479 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
480 if (val & (u32) 0x1)
481 break;
482 if (--count == 0) {
483 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
484 r = -ETIMEDOUT;
485 goto failure;
486 }
487 udelay(100);
488 }
489 /* Deassert the SOFT RESET flags */
490 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
491 val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
492 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
493 return 0;
494
495failure:
496 kfree(i2s_pdata);
497 kfree(adev->acp.acp_res);
498 kfree(adev->acp.acp_cell);
499 kfree(adev->acp.acp_genpd);
500 return r;
501}
502
503/**
504 * acp_hw_fini - stop the hardware block
505 *
506 * @handle: handle used to pass amdgpu_device pointer
507 *
508 */
509static int acp_hw_fini(void *handle)
510{
511 u32 val = 0;
512 u32 count = 0;
513 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
514
515 /* return early if no ACP */
516 if (!adev->acp.acp_genpd) {
517 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
518 return 0;
519 }
520
521 /* Assert Soft reset of ACP */
522 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
523
524 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
525 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
526
527 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
528 while (true) {
529 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
530 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
531 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
532 break;
533 if (--count == 0) {
534 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
535 return -ETIMEDOUT;
536 }
537 udelay(100);
538 }
539 /* Disable ACP clock */
540 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
541 val &= ~ACP_CONTROL__ClkEn_MASK;
542 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
543
544 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
545
546 while (true) {
547 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
548 if (val & (u32) 0x1)
549 break;
550 if (--count == 0) {
551 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
552 return -ETIMEDOUT;
553 }
554 udelay(100);
555 }
556
557 device_for_each_child(adev->acp.parent, NULL,
558 acp_genpd_remove_device);
559
560 mfd_remove_devices(adev->acp.parent);
561 kfree(adev->acp.acp_res);
562 kfree(adev->acp.acp_genpd);
563 kfree(adev->acp.acp_cell);
564
565 return 0;
566}
567
568static int acp_suspend(void *handle)
569{
570 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
571
572 /* power up on suspend */
573 if (!adev->acp.acp_cell)
574 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
575 return 0;
576}
577
578static int acp_resume(void *handle)
579{
580 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
581
582 /* power down again on resume */
583 if (!adev->acp.acp_cell)
584 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
585 return 0;
586}
587
588static int acp_early_init(void *handle)
589{
590 return 0;
591}
592
593static bool acp_is_idle(void *handle)
594{
595 return true;
596}
597
598static int acp_wait_for_idle(void *handle)
599{
600 return 0;
601}
602
603static int acp_soft_reset(void *handle)
604{
605 return 0;
606}
607
608static int acp_set_clockgating_state(void *handle,
609 enum amd_clockgating_state state)
610{
611 return 0;
612}
613
614static int acp_set_powergating_state(void *handle,
615 enum amd_powergating_state state)
616{
617 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
618 bool enable = (state == AMD_PG_STATE_GATE);
619
620 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, enable);
621
622 return 0;
623}
624
625static const struct amd_ip_funcs acp_ip_funcs = {
626 .name = "acp_ip",
627 .early_init = acp_early_init,
628 .late_init = NULL,
629 .sw_init = acp_sw_init,
630 .sw_fini = acp_sw_fini,
631 .hw_init = acp_hw_init,
632 .hw_fini = acp_hw_fini,
633 .suspend = acp_suspend,
634 .resume = acp_resume,
635 .is_idle = acp_is_idle,
636 .wait_for_idle = acp_wait_for_idle,
637 .soft_reset = acp_soft_reset,
638 .set_clockgating_state = acp_set_clockgating_state,
639 .set_powergating_state = acp_set_powergating_state,
640};
641
642const struct amdgpu_ip_block_version acp_ip_block = {
643 .type = AMD_IP_BLOCK_TYPE_ACP,
644 .major = 2,
645 .minor = 2,
646 .rev = 0,
647 .funcs = &acp_ip_funcs,
648};
1/*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#include <linux/irqdomain.h>
27#include <linux/pci.h>
28#include <linux/pm_domain.h>
29#include <linux/platform_device.h>
30#include <sound/designware_i2s.h>
31#include <sound/pcm.h>
32
33#include "amdgpu.h"
34#include "atom.h"
35#include "amdgpu_acp.h"
36
37#include "acp_gfx_if.h"
38
39#define ACP_TILE_ON_MASK 0x03
40#define ACP_TILE_OFF_MASK 0x02
41#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
42#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
43
44#define ACP_TILE_P1_MASK 0x3e
45#define ACP_TILE_P2_MASK 0x3d
46#define ACP_TILE_DSP0_MASK 0x3b
47#define ACP_TILE_DSP1_MASK 0x37
48
49#define ACP_TILE_DSP2_MASK 0x2f
50
51#define ACP_DMA_REGS_END 0x146c0
52#define ACP_I2S_PLAY_REGS_START 0x14840
53#define ACP_I2S_PLAY_REGS_END 0x148b4
54#define ACP_I2S_CAP_REGS_START 0x148b8
55#define ACP_I2S_CAP_REGS_END 0x1496c
56
57#define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac
58#define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8
59#define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c
60#define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68
61#define ACP_BT_PLAY_REGS_START 0x14970
62#define ACP_BT_PLAY_REGS_END 0x14a24
63#define ACP_BT_COMP1_REG_OFFSET 0xac
64#define ACP_BT_COMP2_REG_OFFSET 0xa8
65
66#define mmACP_PGFSM_RETAIN_REG 0x51c9
67#define mmACP_PGFSM_CONFIG_REG 0x51ca
68#define mmACP_PGFSM_READ_REG_0 0x51cc
69
70#define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8
71#define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9
72#define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa
73#define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb
74
75#define mmACP_CONTROL 0x5131
76#define mmACP_STATUS 0x5133
77#define mmACP_SOFT_RESET 0x5134
78#define ACP_CONTROL__ClkEn_MASK 0x1
79#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
80#define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
81#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
82#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
83
84#define ACP_TIMEOUT_LOOP 0x000000FF
85#define ACP_DEVS 4
86#define ACP_SRC_ID 162
87
88enum {
89 ACP_TILE_P1 = 0,
90 ACP_TILE_P2,
91 ACP_TILE_DSP0,
92 ACP_TILE_DSP1,
93 ACP_TILE_DSP2,
94};
95
96static int acp_sw_init(void *handle)
97{
98 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
99
100 adev->acp.parent = adev->dev;
101
102 adev->acp.cgs_device =
103 amdgpu_cgs_create_device(adev);
104 if (!adev->acp.cgs_device)
105 return -EINVAL;
106
107 return 0;
108}
109
110static int acp_sw_fini(void *handle)
111{
112 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
113
114 if (adev->acp.cgs_device)
115 amdgpu_cgs_destroy_device(adev->acp.cgs_device);
116
117 return 0;
118}
119
120struct acp_pm_domain {
121 void *adev;
122 struct generic_pm_domain gpd;
123};
124
125static int acp_poweroff(struct generic_pm_domain *genpd)
126{
127 struct acp_pm_domain *apd;
128 struct amdgpu_device *adev;
129
130 apd = container_of(genpd, struct acp_pm_domain, gpd);
131 if (apd != NULL) {
132 adev = apd->adev;
133 /* call smu to POWER GATE ACP block
134 * smu will
135 * 1. turn off the acp clock
136 * 2. power off the acp tiles
137 * 3. check and enter ulv state
138 */
139 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
140 }
141 return 0;
142}
143
144static int acp_poweron(struct generic_pm_domain *genpd)
145{
146 struct acp_pm_domain *apd;
147 struct amdgpu_device *adev;
148
149 apd = container_of(genpd, struct acp_pm_domain, gpd);
150 if (apd != NULL) {
151 adev = apd->adev;
152 /* call smu to UNGATE ACP block
153 * smu will
154 * 1. exit ulv
155 * 2. turn on acp clock
156 * 3. power on acp tiles
157 */
158 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
159 }
160 return 0;
161}
162
163static int acp_genpd_add_device(struct device *dev, void *data)
164{
165 struct generic_pm_domain *gpd = data;
166 int ret;
167
168 ret = pm_genpd_add_device(gpd, dev);
169 if (ret)
170 dev_err(dev, "Failed to add dev to genpd %d\n", ret);
171
172 return ret;
173}
174
175static int acp_genpd_remove_device(struct device *dev, void *data)
176{
177 int ret;
178
179 ret = pm_genpd_remove_device(dev);
180 if (ret)
181 dev_err(dev, "Failed to remove dev from genpd %d\n", ret);
182
183 /* Continue to remove */
184 return 0;
185}
186
187/**
188 * acp_hw_init - start and test ACP block
189 *
190 * @handle: handle used to pass amdgpu_device pointer
191 *
192 */
193static int acp_hw_init(void *handle)
194{
195 int r;
196 uint64_t acp_base;
197 u32 val = 0;
198 u32 count = 0;
199 struct i2s_platform_data *i2s_pdata = NULL;
200
201 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
202
203 const struct amdgpu_ip_block *ip_block =
204 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP);
205
206 if (!ip_block)
207 return -EINVAL;
208
209 r = amd_acp_hw_init(adev->acp.cgs_device,
210 ip_block->version->major, ip_block->version->minor);
211 /* -ENODEV means board uses AZ rather than ACP */
212 if (r == -ENODEV) {
213 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
214 return 0;
215 } else if (r) {
216 return r;
217 }
218
219 if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
220 return -EINVAL;
221
222 acp_base = adev->rmmio_base;
223
224
225 adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
226 if (adev->acp.acp_genpd == NULL)
227 return -ENOMEM;
228
229 adev->acp.acp_genpd->gpd.name = "ACP_AUDIO";
230 adev->acp.acp_genpd->gpd.power_off = acp_poweroff;
231 adev->acp.acp_genpd->gpd.power_on = acp_poweron;
232
233
234 adev->acp.acp_genpd->adev = adev;
235
236 pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
237
238 adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
239 GFP_KERNEL);
240
241 if (adev->acp.acp_cell == NULL) {
242 r = -ENOMEM;
243 goto failure;
244 }
245
246 adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
247 if (adev->acp.acp_res == NULL) {
248 r = -ENOMEM;
249 goto failure;
250 }
251
252 i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
253 if (i2s_pdata == NULL) {
254 r = -ENOMEM;
255 goto failure;
256 }
257
258 switch (adev->asic_type) {
259 case CHIP_STONEY:
260 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
261 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
262 break;
263 default:
264 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
265 }
266 i2s_pdata[0].cap = DWC_I2S_PLAY;
267 i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000;
268 i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET;
269 i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET;
270 switch (adev->asic_type) {
271 case CHIP_STONEY:
272 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
273 DW_I2S_QUIRK_COMP_PARAM1 |
274 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
275 break;
276 default:
277 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
278 DW_I2S_QUIRK_COMP_PARAM1;
279 }
280
281 i2s_pdata[1].cap = DWC_I2S_RECORD;
282 i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000;
283 i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET;
284 i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET;
285
286 i2s_pdata[2].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
287 switch (adev->asic_type) {
288 case CHIP_STONEY:
289 i2s_pdata[2].quirks |= DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
290 break;
291 default:
292 break;
293 }
294
295 i2s_pdata[2].cap = DWC_I2S_PLAY | DWC_I2S_RECORD;
296 i2s_pdata[2].snd_rates = SNDRV_PCM_RATE_8000_96000;
297 i2s_pdata[2].i2s_reg_comp1 = ACP_BT_COMP1_REG_OFFSET;
298 i2s_pdata[2].i2s_reg_comp2 = ACP_BT_COMP2_REG_OFFSET;
299
300 adev->acp.acp_res[0].name = "acp2x_dma";
301 adev->acp.acp_res[0].flags = IORESOURCE_MEM;
302 adev->acp.acp_res[0].start = acp_base;
303 adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END;
304
305 adev->acp.acp_res[1].name = "acp2x_dw_i2s_play";
306 adev->acp.acp_res[1].flags = IORESOURCE_MEM;
307 adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START;
308 adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END;
309
310 adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap";
311 adev->acp.acp_res[2].flags = IORESOURCE_MEM;
312 adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START;
313 adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END;
314
315 adev->acp.acp_res[3].name = "acp2x_dw_bt_i2s_play_cap";
316 adev->acp.acp_res[3].flags = IORESOURCE_MEM;
317 adev->acp.acp_res[3].start = acp_base + ACP_BT_PLAY_REGS_START;
318 adev->acp.acp_res[3].end = acp_base + ACP_BT_PLAY_REGS_END;
319
320 adev->acp.acp_res[4].name = "acp2x_dma_irq";
321 adev->acp.acp_res[4].flags = IORESOURCE_IRQ;
322 adev->acp.acp_res[4].start = amdgpu_irq_create_mapping(adev, 162);
323 adev->acp.acp_res[4].end = adev->acp.acp_res[4].start;
324
325 adev->acp.acp_cell[0].name = "acp_audio_dma";
326 adev->acp.acp_cell[0].num_resources = 5;
327 adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
328 adev->acp.acp_cell[0].platform_data = &adev->asic_type;
329 adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
330
331 adev->acp.acp_cell[1].name = "designware-i2s";
332 adev->acp.acp_cell[1].num_resources = 1;
333 adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
334 adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
335 adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data);
336
337 adev->acp.acp_cell[2].name = "designware-i2s";
338 adev->acp.acp_cell[2].num_resources = 1;
339 adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2];
340 adev->acp.acp_cell[2].platform_data = &i2s_pdata[1];
341 adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data);
342
343 adev->acp.acp_cell[3].name = "designware-i2s";
344 adev->acp.acp_cell[3].num_resources = 1;
345 adev->acp.acp_cell[3].resources = &adev->acp.acp_res[3];
346 adev->acp.acp_cell[3].platform_data = &i2s_pdata[2];
347 adev->acp.acp_cell[3].pdata_size = sizeof(struct i2s_platform_data);
348
349 r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
350 ACP_DEVS);
351 if (r)
352 goto failure;
353
354 r = device_for_each_child(adev->acp.parent, &adev->acp.acp_genpd->gpd,
355 acp_genpd_add_device);
356 if (r)
357 goto failure;
358
359 /* Assert Soft reset of ACP */
360 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
361
362 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
363 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
364
365 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
366 while (true) {
367 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
368 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
369 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
370 break;
371 if (--count == 0) {
372 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
373 r = -ETIMEDOUT;
374 goto failure;
375 }
376 udelay(100);
377 }
378 /* Enable clock to ACP and wait until the clock is enabled */
379 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
380 val = val | ACP_CONTROL__ClkEn_MASK;
381 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
382
383 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
384
385 while (true) {
386 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
387 if (val & (u32) 0x1)
388 break;
389 if (--count == 0) {
390 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
391 r = -ETIMEDOUT;
392 goto failure;
393 }
394 udelay(100);
395 }
396 /* Deassert the SOFT RESET flags */
397 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
398 val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
399 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
400 return 0;
401
402failure:
403 kfree(i2s_pdata);
404 kfree(adev->acp.acp_res);
405 kfree(adev->acp.acp_cell);
406 kfree(adev->acp.acp_genpd);
407 return r;
408}
409
410/**
411 * acp_hw_fini - stop the hardware block
412 *
413 * @handle: handle used to pass amdgpu_device pointer
414 *
415 */
416static int acp_hw_fini(void *handle)
417{
418 u32 val = 0;
419 u32 count = 0;
420 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
421
422 /* return early if no ACP */
423 if (!adev->acp.acp_genpd) {
424 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
425 return 0;
426 }
427
428 /* Assert Soft reset of ACP */
429 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
430
431 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
432 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
433
434 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
435 while (true) {
436 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
437 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
438 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
439 break;
440 if (--count == 0) {
441 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
442 return -ETIMEDOUT;
443 }
444 udelay(100);
445 }
446 /* Disable ACP clock */
447 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
448 val &= ~ACP_CONTROL__ClkEn_MASK;
449 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
450
451 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
452
453 while (true) {
454 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
455 if (val & (u32) 0x1)
456 break;
457 if (--count == 0) {
458 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
459 return -ETIMEDOUT;
460 }
461 udelay(100);
462 }
463
464 device_for_each_child(adev->acp.parent, NULL,
465 acp_genpd_remove_device);
466
467 mfd_remove_devices(adev->acp.parent);
468 kfree(adev->acp.acp_res);
469 kfree(adev->acp.acp_genpd);
470 kfree(adev->acp.acp_cell);
471
472 return 0;
473}
474
475static int acp_suspend(void *handle)
476{
477 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
478
479 /* power up on suspend */
480 if (!adev->acp.acp_cell)
481 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
482 return 0;
483}
484
485static int acp_resume(void *handle)
486{
487 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
488
489 /* power down again on resume */
490 if (!adev->acp.acp_cell)
491 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
492 return 0;
493}
494
495static int acp_early_init(void *handle)
496{
497 return 0;
498}
499
500static bool acp_is_idle(void *handle)
501{
502 return true;
503}
504
505static int acp_wait_for_idle(void *handle)
506{
507 return 0;
508}
509
510static int acp_soft_reset(void *handle)
511{
512 return 0;
513}
514
515static int acp_set_clockgating_state(void *handle,
516 enum amd_clockgating_state state)
517{
518 return 0;
519}
520
521static int acp_set_powergating_state(void *handle,
522 enum amd_powergating_state state)
523{
524 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
525 bool enable = (state == AMD_PG_STATE_GATE);
526
527 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, enable);
528
529 return 0;
530}
531
532static const struct amd_ip_funcs acp_ip_funcs = {
533 .name = "acp_ip",
534 .early_init = acp_early_init,
535 .late_init = NULL,
536 .sw_init = acp_sw_init,
537 .sw_fini = acp_sw_fini,
538 .hw_init = acp_hw_init,
539 .hw_fini = acp_hw_fini,
540 .suspend = acp_suspend,
541 .resume = acp_resume,
542 .is_idle = acp_is_idle,
543 .wait_for_idle = acp_wait_for_idle,
544 .soft_reset = acp_soft_reset,
545 .set_clockgating_state = acp_set_clockgating_state,
546 .set_powergating_state = acp_set_powergating_state,
547};
548
549const struct amdgpu_ip_block_version acp_ip_block =
550{
551 .type = AMD_IP_BLOCK_TYPE_ACP,
552 .major = 2,
553 .minor = 2,
554 .rev = 0,
555 .funcs = &acp_ip_funcs,
556};