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drm/amdgpu: add another ATPX quirk for TOPAZ
[mirror_ubuntu-eoan-kernel.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_acp.c
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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>
25030321 27#include <linux/pm_domain.h>
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28#include <linux/platform_device.h>
29#include <sound/designware_i2s.h>
30#include <sound/pcm.h>
31
32#include "amdgpu.h"
33#include "atom.h"
34#include "amdgpu_acp.h"
35
36#include "acp_gfx_if.h"
37
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38#define ACP_TILE_ON_MASK 0x03
39#define ACP_TILE_OFF_MASK 0x02
40#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
41#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
42
43#define ACP_TILE_P1_MASK 0x3e
44#define ACP_TILE_P2_MASK 0x3d
45#define ACP_TILE_DSP0_MASK 0x3b
46#define ACP_TILE_DSP1_MASK 0x37
47
48#define ACP_TILE_DSP2_MASK 0x2f
49
50#define ACP_DMA_REGS_END 0x146c0
51#define ACP_I2S_PLAY_REGS_START 0x14840
52#define ACP_I2S_PLAY_REGS_END 0x148b4
53#define ACP_I2S_CAP_REGS_START 0x148b8
54#define ACP_I2S_CAP_REGS_END 0x1496c
55
56#define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac
57#define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8
58#define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c
59#define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68
60
61#define mmACP_PGFSM_RETAIN_REG 0x51c9
62#define mmACP_PGFSM_CONFIG_REG 0x51ca
63#define mmACP_PGFSM_READ_REG_0 0x51cc
64
65#define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8
66#define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9
67#define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa
68#define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb
69
70#define mmACP_CONTROL 0x5131
71#define mmACP_STATUS 0x5133
72#define mmACP_SOFT_RESET 0x5134
73#define ACP_CONTROL__ClkEn_MASK 0x1
74#define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
75#define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
76#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
77#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
78
79#define ACP_TIMEOUT_LOOP 0x000000FF
80#define ACP_DEVS 3
81#define ACP_SRC_ID 162
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82
83enum {
84 ACP_TILE_P1 = 0,
85 ACP_TILE_P2,
86 ACP_TILE_DSP0,
87 ACP_TILE_DSP1,
88 ACP_TILE_DSP2,
89};
90
91static int acp_sw_init(void *handle)
92{
93 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
94
95 adev->acp.parent = adev->dev;
96
97 adev->acp.cgs_device =
98 amdgpu_cgs_create_device(adev);
99 if (!adev->acp.cgs_device)
100 return -EINVAL;
101
102 return 0;
103}
104
105static int acp_sw_fini(void *handle)
106{
107 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
108
109 if (adev->acp.cgs_device)
110 amdgpu_cgs_destroy_device(adev->acp.cgs_device);
111
112 return 0;
113}
114
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115/* power off a tile/block within ACP */
116static int acp_suspend_tile(void *cgs_dev, int tile)
117{
118 u32 val = 0;
119 u32 count = 0;
120
121 if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) {
122 pr_err("Invalid ACP tile : %d to suspend\n", tile);
123 return -1;
124 }
125
126 val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile);
127 val &= ACP_TILE_ON_MASK;
128
129 if (val == 0x0) {
130 val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
131 val = val | (1 << tile);
132 cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
133 cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG,
134 0x500 + tile);
135
136 count = ACP_TIMEOUT_LOOP;
137 while (true) {
138 val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0
139 + tile);
140 val = val & ACP_TILE_ON_MASK;
141 if (val == ACP_TILE_OFF_MASK)
142 break;
143 if (--count == 0) {
144 pr_err("Timeout reading ACP PGFSM status\n");
145 return -ETIMEDOUT;
146 }
147 udelay(100);
148 }
149
150 val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
151
152 val |= ACP_TILE_OFF_RETAIN_REG_MASK;
153 cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
154 }
155 return 0;
156}
157
158/* power on a tile/block within ACP */
159static int acp_resume_tile(void *cgs_dev, int tile)
160{
161 u32 val = 0;
162 u32 count = 0;
163
164 if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) {
165 pr_err("Invalid ACP tile to resume\n");
166 return -1;
167 }
168
169 val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile);
170 val = val & ACP_TILE_ON_MASK;
171
172 if (val != 0x0) {
173 cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG,
174 0x600 + tile);
175 count = ACP_TIMEOUT_LOOP;
176 while (true) {
177 val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0
178 + tile);
179 val = val & ACP_TILE_ON_MASK;
180 if (val == 0x0)
181 break;
182 if (--count == 0) {
183 pr_err("Timeout reading ACP PGFSM status\n");
184 return -ETIMEDOUT;
185 }
186 udelay(100);
187 }
188 val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG);
189 if (tile == ACP_TILE_P1)
190 val = val & (ACP_TILE_P1_MASK);
191 else if (tile == ACP_TILE_P2)
192 val = val & (ACP_TILE_P2_MASK);
193
194 cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val);
195 }
196 return 0;
197}
198
199struct acp_pm_domain {
200 void *cgs_dev;
201 struct generic_pm_domain gpd;
202};
203
204static int acp_poweroff(struct generic_pm_domain *genpd)
205{
206 int i, ret;
207 struct acp_pm_domain *apd;
208
209 apd = container_of(genpd, struct acp_pm_domain, gpd);
210 if (apd != NULL) {
211 /* Donot return abruptly if any of power tile fails to suspend.
212 * Log it and continue powering off other tile
213 */
214 for (i = 4; i >= 0 ; i--) {
215 ret = acp_suspend_tile(apd->cgs_dev, ACP_TILE_P1 + i);
216 if (ret)
217 pr_err("ACP tile %d tile suspend failed\n", i);
218 }
219 }
220 return 0;
221}
222
223static int acp_poweron(struct generic_pm_domain *genpd)
224{
225 int i, ret;
226 struct acp_pm_domain *apd;
227
228 apd = container_of(genpd, struct acp_pm_domain, gpd);
229 if (apd != NULL) {
230 for (i = 0; i < 2; i++) {
231 ret = acp_resume_tile(apd->cgs_dev, ACP_TILE_P1 + i);
232 if (ret) {
233 pr_err("ACP tile %d resume failed\n", i);
234 break;
235 }
236 }
237
238 /* Disable DSPs which are not going to be used */
239 for (i = 0; i < 3; i++) {
240 ret = acp_suspend_tile(apd->cgs_dev, ACP_TILE_DSP0 + i);
241 /* Continue suspending other DSP, even if one fails */
242 if (ret)
243 pr_err("ACP DSP %d suspend failed\n", i);
244 }
245 }
246 return 0;
247}
248
249static struct device *get_mfd_cell_dev(const char *device_name, int r)
250{
251 char auto_dev_name[25];
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252 struct device *dev;
253
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254 snprintf(auto_dev_name, sizeof(auto_dev_name),
255 "%s.%d.auto", device_name, r);
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256 dev = bus_find_device_by_name(&platform_bus_type, NULL, auto_dev_name);
257 dev_info(dev, "device %s added to pm domain\n", auto_dev_name);
258
259 return dev;
260}
261
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262/**
263 * acp_hw_init - start and test ACP block
264 *
265 * @adev: amdgpu_device pointer
266 *
267 */
268static int acp_hw_init(void *handle)
269{
25030321 270 int r, i;
a8fe58ce 271 uint64_t acp_base;
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272 u32 val = 0;
273 u32 count = 0;
25030321 274 struct device *dev;
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275 struct i2s_platform_data *i2s_pdata;
276
277 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
278
a1255107 279 const struct amdgpu_ip_block *ip_block =
2990a1fc 280 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP);
a8fe58ce 281
a1255107 282 if (!ip_block)
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283 return -EINVAL;
284
285 r = amd_acp_hw_init(adev->acp.cgs_device,
a1255107 286 ip_block->version->major, ip_block->version->minor);
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287 /* -ENODEV means board uses AZ rather than ACP */
288 if (r == -ENODEV)
289 return 0;
290 else if (r)
291 return r;
292
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293 if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
294 return -EINVAL;
295
296 acp_base = adev->rmmio_base;
297
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298 if (adev->asic_type != CHIP_STONEY) {
299 adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
300 if (adev->acp.acp_genpd == NULL)
301 return -ENOMEM;
a8fe58ce 302
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303 adev->acp.acp_genpd->gpd.name = "ACP_AUDIO";
304 adev->acp.acp_genpd->gpd.power_off = acp_poweroff;
305 adev->acp.acp_genpd->gpd.power_on = acp_poweron;
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306
307
43bb3a6d 308 adev->acp.acp_genpd->cgs_dev = adev->acp.cgs_device;
25030321 309
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310 pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
311 }
25030321 312
6396bb22 313 adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
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314 GFP_KERNEL);
315
316 if (adev->acp.acp_cell == NULL)
317 return -ENOMEM;
318
6396bb22 319 adev->acp.acp_res = kcalloc(4, sizeof(struct resource), GFP_KERNEL);
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320
321 if (adev->acp.acp_res == NULL) {
322 kfree(adev->acp.acp_cell);
323 return -ENOMEM;
324 }
325
6396bb22 326 i2s_pdata = kcalloc(2, sizeof(struct i2s_platform_data), GFP_KERNEL);
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327 if (i2s_pdata == NULL) {
328 kfree(adev->acp.acp_res);
329 kfree(adev->acp.acp_cell);
330 return -ENOMEM;
331 }
332
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333 switch (adev->asic_type) {
334 case CHIP_STONEY:
335 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
336 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
337 break;
338 default:
339 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
340 }
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341 i2s_pdata[0].cap = DWC_I2S_PLAY;
342 i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000;
343 i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET;
344 i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET;
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VM
345 switch (adev->asic_type) {
346 case CHIP_STONEY:
347 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
348 DW_I2S_QUIRK_COMP_PARAM1 |
349 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
350 break;
351 default:
352 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
353 DW_I2S_QUIRK_COMP_PARAM1;
354 }
a8fe58ce 355
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356 i2s_pdata[1].cap = DWC_I2S_RECORD;
357 i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000;
358 i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET;
359 i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET;
360
361 adev->acp.acp_res[0].name = "acp2x_dma";
362 adev->acp.acp_res[0].flags = IORESOURCE_MEM;
363 adev->acp.acp_res[0].start = acp_base;
364 adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END;
365
366 adev->acp.acp_res[1].name = "acp2x_dw_i2s_play";
367 adev->acp.acp_res[1].flags = IORESOURCE_MEM;
368 adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START;
369 adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END;
370
371 adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap";
372 adev->acp.acp_res[2].flags = IORESOURCE_MEM;
373 adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START;
374 adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END;
375
376 adev->acp.acp_res[3].name = "acp2x_dma_irq";
377 adev->acp.acp_res[3].flags = IORESOURCE_IRQ;
378 adev->acp.acp_res[3].start = amdgpu_irq_create_mapping(adev, 162);
379 adev->acp.acp_res[3].end = adev->acp.acp_res[3].start;
380
381 adev->acp.acp_cell[0].name = "acp_audio_dma";
382 adev->acp.acp_cell[0].num_resources = 4;
383 adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
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384 adev->acp.acp_cell[0].platform_data = &adev->asic_type;
385 adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
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386
387 adev->acp.acp_cell[1].name = "designware-i2s";
388 adev->acp.acp_cell[1].num_resources = 1;
389 adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
390 adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
391 adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data);
392
393 adev->acp.acp_cell[2].name = "designware-i2s";
394 adev->acp.acp_cell[2].num_resources = 1;
395 adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2];
396 adev->acp.acp_cell[2].platform_data = &i2s_pdata[1];
397 adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data);
398
399 r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
400 ACP_DEVS);
401 if (r)
402 return r;
403
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VM
404 if (adev->asic_type != CHIP_STONEY) {
405 for (i = 0; i < ACP_DEVS ; i++) {
406 dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
407 r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
408 if (r) {
409 dev_err(dev, "Failed to add dev to genpd\n");
410 return r;
411 }
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412 }
413 }
414
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415 /* Assert Soft reset of ACP */
416 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
417
418 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
419 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
420
421 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
422 while (true) {
423 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
424 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
425 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
426 break;
427 if (--count == 0) {
428 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
429 return -ETIMEDOUT;
430 }
431 udelay(100);
432 }
433 /* Enable clock to ACP and wait until the clock is enabled */
434 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
435 val = val | ACP_CONTROL__ClkEn_MASK;
436 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
437
438 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
439
440 while (true) {
441 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
442 if (val & (u32) 0x1)
443 break;
444 if (--count == 0) {
445 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
446 return -ETIMEDOUT;
447 }
448 udelay(100);
449 }
450 /* Deassert the SOFT RESET flags */
451 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
452 val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
453 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
454
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455 return 0;
456}
457
458/**
459 * acp_hw_fini - stop the hardware block
460 *
461 * @adev: amdgpu_device pointer
462 *
463 */
464static int acp_hw_fini(void *handle)
465{
25030321 466 int i, ret;
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AA
467 u32 val = 0;
468 u32 count = 0;
25030321 469 struct device *dev;
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470 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
471
757124d9 472 /* return early if no ACP */
43bb3a6d 473 if (!adev->acp.acp_cell)
757124d9
AD
474 return 0;
475
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AA
476 /* Assert Soft reset of ACP */
477 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
478
479 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
480 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
481
482 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
483 while (true) {
484 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
485 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
486 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
487 break;
488 if (--count == 0) {
489 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
490 return -ETIMEDOUT;
491 }
492 udelay(100);
493 }
494 /* Disable ACP clock */
495 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
496 val &= ~ACP_CONTROL__ClkEn_MASK;
497 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
498
499 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
500
501 while (true) {
502 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
503 if (val & (u32) 0x1)
504 break;
505 if (--count == 0) {
506 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
507 return -ETIMEDOUT;
508 }
509 udelay(100);
510 }
511
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VM
512 if (adev->acp.acp_genpd) {
513 for (i = 0; i < ACP_DEVS ; i++) {
514 dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
924f4486 515 ret = pm_genpd_remove_device(dev);
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VM
516 /* If removal fails, dont giveup and try rest */
517 if (ret)
518 dev_err(dev, "remove dev from genpd failed\n");
519 }
520 kfree(adev->acp.acp_genpd);
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MSB
521 }
522
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523 mfd_remove_devices(adev->acp.parent);
524 kfree(adev->acp.acp_res);
525 kfree(adev->acp.acp_cell);
526
527 return 0;
528}
529
530static int acp_suspend(void *handle)
531{
532 return 0;
533}
534
535static int acp_resume(void *handle)
536{
537 return 0;
538}
539
540static int acp_early_init(void *handle)
541{
542 return 0;
543}
544
545static bool acp_is_idle(void *handle)
546{
547 return true;
548}
549
550static int acp_wait_for_idle(void *handle)
551{
552 return 0;
553}
554
555static int acp_soft_reset(void *handle)
556{
557 return 0;
558}
559
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560static int acp_set_clockgating_state(void *handle,
561 enum amd_clockgating_state state)
562{
563 return 0;
564}
565
566static int acp_set_powergating_state(void *handle,
567 enum amd_powergating_state state)
568{
569 return 0;
570}
571
a1255107 572static const struct amd_ip_funcs acp_ip_funcs = {
88a907d6 573 .name = "acp_ip",
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574 .early_init = acp_early_init,
575 .late_init = NULL,
576 .sw_init = acp_sw_init,
577 .sw_fini = acp_sw_fini,
578 .hw_init = acp_hw_init,
579 .hw_fini = acp_hw_fini,
580 .suspend = acp_suspend,
581 .resume = acp_resume,
582 .is_idle = acp_is_idle,
583 .wait_for_idle = acp_wait_for_idle,
584 .soft_reset = acp_soft_reset,
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585 .set_clockgating_state = acp_set_clockgating_state,
586 .set_powergating_state = acp_set_powergating_state,
587};
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AD
588
589const struct amdgpu_ip_block_version acp_ip_block =
590{
591 .type = AMD_IP_BLOCK_TYPE_ACP,
592 .major = 2,
593 .minor = 2,
594 .rev = 0,
595 .funcs = &acp_ip_funcs,
596};