1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* |
3 | * Machine driver for AMD Vangogh platform using either |
4 | * NAU8821 & CS35L41 or NAU8821 & MAX98388 codecs. |
5 | * |
6 | * Copyright 2021 Advanced Micro Devices, Inc. |
7 | */ |
8 | |
9 | #include <linux/acpi.h> |
10 | #include <linux/dmi.h> |
11 | #include <linux/gpio/consumer.h> |
12 | #include <linux/i2c.h> |
13 | #include <linux/input-event-codes.h> |
14 | #include <linux/module.h> |
15 | #include <sound/jack.h> |
16 | #include <sound/pcm_params.h> |
17 | #include <sound/soc.h> |
18 | #include <sound/soc-dapm.h> |
19 | |
20 | #include "../../codecs/nau8821.h" |
21 | #include "acp5x.h" |
22 | |
23 | #define DRV_NAME "acp5x_mach" |
24 | #define DUAL_CHANNEL 2 |
25 | #define ACP5X_NAU8821_BCLK 3072000 |
26 | #define ACP5X_NAU8821_FREQ_OUT 12288000 |
27 | #define ACP5X_NAU8821_COMP_NAME "i2c-NVTN2020:00" |
28 | #define ACP5X_NAU8821_DAI_NAME "nau8821-hifi" |
29 | #define ACP5X_CS35L41_COMP_LNAME "spi-VLV1776:00" |
30 | #define ACP5X_CS35L41_COMP_RNAME "spi-VLV1776:01" |
31 | #define ACP5X_CS35L41_DAI_NAME "cs35l41-pcm" |
32 | #define ACP5X_MAX98388_COMP_LNAME "i2c-ADS8388:00" |
33 | #define ACP5X_MAX98388_COMP_RNAME "i2c-ADS8388:01" |
34 | #define ACP5X_MAX98388_DAI_NAME "max98388-aif1" |
35 | |
36 | static struct snd_soc_jack vg_headset; |
37 | |
38 | SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0" ))); |
39 | SND_SOC_DAILINK_DEF(acp5x_i2s, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0" ))); |
40 | SND_SOC_DAILINK_DEF(acp5x_bt, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1" ))); |
41 | SND_SOC_DAILINK_DEF(nau8821, DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_NAU8821_COMP_NAME, |
42 | ACP5X_NAU8821_DAI_NAME))); |
43 | |
44 | static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = { |
45 | { |
46 | .pin = "Headphone" , |
47 | .mask = SND_JACK_HEADPHONE, |
48 | }, |
49 | { |
50 | .pin = "Headset Mic" , |
51 | .mask = SND_JACK_MICROPHONE, |
52 | }, |
53 | }; |
54 | |
55 | static const struct snd_kcontrol_new acp5x_8821_controls[] = { |
56 | SOC_DAPM_PIN_SWITCH("Headphone" ), |
57 | SOC_DAPM_PIN_SWITCH("Headset Mic" ), |
58 | SOC_DAPM_PIN_SWITCH("Int Mic" ), |
59 | }; |
60 | |
61 | static int platform_clock_control(struct snd_soc_dapm_widget *w, |
62 | struct snd_kcontrol *k, int event) |
63 | { |
64 | struct snd_soc_dapm_context *dapm = w->dapm; |
65 | struct snd_soc_card *card = dapm->card; |
66 | struct snd_soc_dai *dai; |
67 | int ret = 0; |
68 | |
69 | dai = snd_soc_card_get_codec_dai(card, ACP5X_NAU8821_DAI_NAME); |
70 | if (!dai) { |
71 | dev_err(card->dev, "Codec dai not found\n" ); |
72 | return -EIO; |
73 | } |
74 | |
75 | if (SND_SOC_DAPM_EVENT_OFF(event)) { |
76 | ret = snd_soc_dai_set_sysclk(dai, clk_id: NAU8821_CLK_INTERNAL, freq: 0, SND_SOC_CLOCK_IN); |
77 | if (ret < 0) { |
78 | dev_err(card->dev, "set sysclk err = %d\n" , ret); |
79 | return -EIO; |
80 | } |
81 | } else { |
82 | ret = snd_soc_dai_set_sysclk(dai, clk_id: NAU8821_CLK_FLL_BLK, freq: 0, SND_SOC_CLOCK_IN); |
83 | if (ret < 0) |
84 | dev_err(dai->dev, "can't set BLK clock %d\n" , ret); |
85 | ret = snd_soc_dai_set_pll(dai, pll_id: 0, source: 0, ACP5X_NAU8821_BCLK, ACP5X_NAU8821_FREQ_OUT); |
86 | if (ret < 0) |
87 | dev_err(dai->dev, "can't set FLL: %d\n" , ret); |
88 | } |
89 | |
90 | return ret; |
91 | } |
92 | |
93 | static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd) |
94 | { |
95 | struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component; |
96 | int ret; |
97 | |
98 | /* |
99 | * Headset buttons map to the google Reference headset. |
100 | * These can be configured by userspace. |
101 | */ |
102 | ret = snd_soc_card_jack_new_pins(card: rtd->card, id: "Headset Jack" , |
103 | type: SND_JACK_HEADSET | SND_JACK_BTN_0, |
104 | jack: &vg_headset, pins: acp5x_nau8821_jack_pins, |
105 | ARRAY_SIZE(acp5x_nau8821_jack_pins)); |
106 | if (ret) { |
107 | dev_err(rtd->dev, "Headset Jack creation failed %d\n" , ret); |
108 | return ret; |
109 | } |
110 | |
111 | snd_jack_set_key(jack: vg_headset.jack, type: SND_JACK_BTN_0, KEY_MEDIA); |
112 | nau8821_enable_jack_detect(component, jack: &vg_headset); |
113 | |
114 | return ret; |
115 | } |
116 | |
117 | static const unsigned int rates[] = { |
118 | 48000, |
119 | }; |
120 | |
121 | static const struct snd_pcm_hw_constraint_list constraints_rates = { |
122 | .count = ARRAY_SIZE(rates), |
123 | .list = rates, |
124 | .mask = 0, |
125 | }; |
126 | |
127 | static const unsigned int channels[] = { |
128 | 2, |
129 | }; |
130 | |
131 | static const struct snd_pcm_hw_constraint_list constraints_channels = { |
132 | .count = ARRAY_SIZE(channels), |
133 | .list = channels, |
134 | .mask = 0, |
135 | }; |
136 | |
137 | static const unsigned int acp5x_nau8821_format[] = {32}; |
138 | |
139 | static struct snd_pcm_hw_constraint_list constraints_sample_bits = { |
140 | .list = acp5x_nau8821_format, |
141 | .count = ARRAY_SIZE(acp5x_nau8821_format), |
142 | }; |
143 | |
144 | static int acp5x_8821_startup(struct snd_pcm_substream *substream) |
145 | { |
146 | struct snd_pcm_runtime *runtime = substream->runtime; |
147 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
148 | struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card: rtd->card); |
149 | |
150 | machine->play_i2s_instance = I2S_SP_INSTANCE; |
151 | machine->cap_i2s_instance = I2S_SP_INSTANCE; |
152 | |
153 | runtime->hw.channels_max = DUAL_CHANNEL; |
154 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
155 | l: &constraints_channels); |
156 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
157 | l: &constraints_rates); |
158 | snd_pcm_hw_constraint_list(runtime: substream->runtime, cond: 0, |
159 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
160 | l: &constraints_sample_bits); |
161 | |
162 | return 0; |
163 | } |
164 | |
165 | static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream, |
166 | struct snd_pcm_hw_params *params) |
167 | { |
168 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
169 | struct snd_soc_card *card = rtd->card; |
170 | struct snd_soc_dai *dai = snd_soc_card_get_codec_dai(card, ACP5X_NAU8821_DAI_NAME); |
171 | int ret, bclk; |
172 | |
173 | if (!dai) |
174 | return -EINVAL; |
175 | |
176 | ret = snd_soc_dai_set_sysclk(dai, clk_id: NAU8821_CLK_FLL_BLK, freq: 0, SND_SOC_CLOCK_IN); |
177 | if (ret < 0) |
178 | dev_err(card->dev, "can't set FS clock %d\n" , ret); |
179 | |
180 | bclk = snd_soc_params_to_bclk(parms: params); |
181 | if (bclk < 0) { |
182 | dev_err(dai->dev, "Fail to get BCLK rate: %d\n" , bclk); |
183 | return bclk; |
184 | } |
185 | |
186 | ret = snd_soc_dai_set_pll(dai, pll_id: 0, source: 0, freq_in: bclk, freq_out: params_rate(p: params) * 256); |
187 | if (ret < 0) |
188 | dev_err(card->dev, "can't set FLL: %d\n" , ret); |
189 | |
190 | return ret; |
191 | } |
192 | |
193 | static const struct snd_soc_ops acp5x_8821_ops = { |
194 | .startup = acp5x_8821_startup, |
195 | .hw_params = acp5x_nau8821_hw_params, |
196 | }; |
197 | |
198 | static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream) |
199 | { |
200 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
201 | struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card: rtd->card); |
202 | struct snd_pcm_runtime *runtime = substream->runtime; |
203 | |
204 | machine->play_i2s_instance = I2S_HS_INSTANCE; |
205 | |
206 | runtime->hw.channels_max = DUAL_CHANNEL; |
207 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
208 | l: &constraints_channels); |
209 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
210 | l: &constraints_rates); |
211 | |
212 | return 0; |
213 | } |
214 | |
215 | static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream, |
216 | struct snd_pcm_hw_params *params) |
217 | { |
218 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
219 | unsigned int bclk, rate = params_rate(p: params); |
220 | struct snd_soc_component *comp; |
221 | int ret, i; |
222 | |
223 | switch (rate) { |
224 | case 48000: |
225 | bclk = 1536000; |
226 | break; |
227 | default: |
228 | bclk = 0; |
229 | break; |
230 | } |
231 | |
232 | for_each_rtd_components(rtd, i, comp) { |
233 | if (!(strcmp(comp->name, ACP5X_CS35L41_COMP_LNAME)) || |
234 | !(strcmp(comp->name, ACP5X_CS35L41_COMP_RNAME))) { |
235 | if (!bclk) { |
236 | dev_err(comp->dev, "Invalid sample rate: 0x%x\n" , rate); |
237 | return -EINVAL; |
238 | } |
239 | |
240 | ret = snd_soc_component_set_sysclk(component: comp, clk_id: 0, source: 0, freq: bclk, SND_SOC_CLOCK_IN); |
241 | if (ret) { |
242 | dev_err(comp->dev, "failed to set SYSCLK: %d\n" , ret); |
243 | return ret; |
244 | } |
245 | } |
246 | } |
247 | |
248 | return 0; |
249 | } |
250 | |
251 | static const struct snd_soc_ops acp5x_cs35l41_play_ops = { |
252 | .startup = acp5x_cs35l41_startup, |
253 | .hw_params = acp5x_cs35l41_hw_params, |
254 | }; |
255 | |
256 | static struct snd_soc_codec_conf acp5x_cs35l41_conf[] = { |
257 | { |
258 | .dlc = COMP_CODEC_CONF(ACP5X_CS35L41_COMP_LNAME), |
259 | .name_prefix = "Left" , |
260 | }, |
261 | { |
262 | .dlc = COMP_CODEC_CONF(ACP5X_CS35L41_COMP_RNAME), |
263 | .name_prefix = "Right" , |
264 | }, |
265 | }; |
266 | |
267 | SND_SOC_DAILINK_DEF(cs35l41, DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_CS35L41_COMP_LNAME, |
268 | ACP5X_CS35L41_DAI_NAME), |
269 | COMP_CODEC(ACP5X_CS35L41_COMP_RNAME, |
270 | ACP5X_CS35L41_DAI_NAME))); |
271 | |
272 | static struct snd_soc_dai_link acp5x_8821_35l41_dai[] = { |
273 | { |
274 | .name = "acp5x-8821-play" , |
275 | .stream_name = "Playback/Capture" , |
276 | .dai_fmt = SND_SOC_DAIFMT_I2S | |
277 | SND_SOC_DAIFMT_NB_NF | |
278 | SND_SOC_DAIFMT_CBC_CFC, |
279 | .dpcm_playback = 1, |
280 | .dpcm_capture = 1, |
281 | .ops = &acp5x_8821_ops, |
282 | .init = acp5x_8821_init, |
283 | SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), |
284 | }, |
285 | { |
286 | .name = "acp5x-CS35L41-Stereo" , |
287 | .stream_name = "CS35L41 Stereo Playback" , |
288 | .dai_fmt = SND_SOC_DAIFMT_I2S | |
289 | SND_SOC_DAIFMT_NB_NF | |
290 | SND_SOC_DAIFMT_CBC_CFC, |
291 | .dpcm_playback = 1, |
292 | .playback_only = 1, |
293 | .ops = &acp5x_cs35l41_play_ops, |
294 | SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform), |
295 | }, |
296 | }; |
297 | |
298 | static const struct snd_soc_dapm_widget acp5x_8821_35l41_widgets[] = { |
299 | SND_SOC_DAPM_HP("Headphone" , NULL), |
300 | SND_SOC_DAPM_MIC("Headset Mic" , NULL), |
301 | SND_SOC_DAPM_MIC("Int Mic" , NULL), |
302 | SND_SOC_DAPM_SUPPLY("Platform Clock" , SND_SOC_NOPM, 0, 0, |
303 | platform_clock_control, |
304 | SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), |
305 | }; |
306 | |
307 | static const struct snd_soc_dapm_route acp5x_8821_35l41_audio_route[] = { |
308 | /* HP jack connectors - unknown if we have jack detection */ |
309 | { "Headphone" , NULL, "HPOL" }, |
310 | { "Headphone" , NULL, "HPOR" }, |
311 | { "MICL" , NULL, "Headset Mic" }, |
312 | { "MICR" , NULL, "Headset Mic" }, |
313 | { "DMIC" , NULL, "Int Mic" }, |
314 | |
315 | { "Headphone" , NULL, "Platform Clock" }, |
316 | { "Headset Mic" , NULL, "Platform Clock" }, |
317 | { "Int Mic" , NULL, "Platform Clock" }, |
318 | }; |
319 | |
320 | static struct snd_soc_card acp5x_8821_35l41_card = { |
321 | .name = "acp5x" , |
322 | .owner = THIS_MODULE, |
323 | .dai_link = acp5x_8821_35l41_dai, |
324 | .num_links = ARRAY_SIZE(acp5x_8821_35l41_dai), |
325 | .dapm_widgets = acp5x_8821_35l41_widgets, |
326 | .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_35l41_widgets), |
327 | .dapm_routes = acp5x_8821_35l41_audio_route, |
328 | .num_dapm_routes = ARRAY_SIZE(acp5x_8821_35l41_audio_route), |
329 | .codec_conf = acp5x_cs35l41_conf, |
330 | .num_configs = ARRAY_SIZE(acp5x_cs35l41_conf), |
331 | .controls = acp5x_8821_controls, |
332 | .num_controls = ARRAY_SIZE(acp5x_8821_controls), |
333 | }; |
334 | |
335 | static int acp5x_max98388_startup(struct snd_pcm_substream *substream) |
336 | { |
337 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
338 | struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card: rtd->card); |
339 | struct snd_pcm_runtime *runtime = substream->runtime; |
340 | |
341 | machine->play_i2s_instance = I2S_HS_INSTANCE; |
342 | |
343 | runtime->hw.channels_max = DUAL_CHANNEL; |
344 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
345 | l: &constraints_channels); |
346 | snd_pcm_hw_constraint_list(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
347 | l: &constraints_rates); |
348 | return 0; |
349 | } |
350 | |
351 | static const struct snd_soc_ops acp5x_max98388_play_ops = { |
352 | .startup = acp5x_max98388_startup, |
353 | }; |
354 | |
355 | static struct snd_soc_codec_conf acp5x_max98388_conf[] = { |
356 | { |
357 | .dlc = COMP_CODEC_CONF(ACP5X_MAX98388_COMP_LNAME), |
358 | .name_prefix = "Left" , |
359 | }, |
360 | { |
361 | .dlc = COMP_CODEC_CONF(ACP5X_MAX98388_COMP_RNAME), |
362 | .name_prefix = "Right" , |
363 | }, |
364 | }; |
365 | |
366 | SND_SOC_DAILINK_DEF(max98388, DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_MAX98388_COMP_LNAME, |
367 | ACP5X_MAX98388_DAI_NAME), |
368 | COMP_CODEC(ACP5X_MAX98388_COMP_RNAME, |
369 | ACP5X_MAX98388_DAI_NAME))); |
370 | |
371 | static struct snd_soc_dai_link acp5x_8821_98388_dai[] = { |
372 | { |
373 | .name = "acp5x-8821-play" , |
374 | .stream_name = "Playback/Capture" , |
375 | .dai_fmt = SND_SOC_DAIFMT_I2S | |
376 | SND_SOC_DAIFMT_NB_NF | |
377 | SND_SOC_DAIFMT_CBC_CFC, |
378 | .dpcm_playback = 1, |
379 | .dpcm_capture = 1, |
380 | .ops = &acp5x_8821_ops, |
381 | .init = acp5x_8821_init, |
382 | SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), |
383 | }, |
384 | { |
385 | .name = "acp5x-max98388-play" , |
386 | .stream_name = "MAX98388 Playback" , |
387 | .dai_fmt = SND_SOC_DAIFMT_I2S | |
388 | SND_SOC_DAIFMT_NB_NF | |
389 | SND_SOC_DAIFMT_CBC_CFC, |
390 | .dpcm_playback = 1, |
391 | .playback_only = 1, |
392 | .ops = &acp5x_max98388_play_ops, |
393 | SND_SOC_DAILINK_REG(acp5x_bt, max98388, platform), |
394 | }, |
395 | }; |
396 | |
397 | static const struct snd_soc_dapm_widget acp5x_8821_98388_widgets[] = { |
398 | SND_SOC_DAPM_HP("Headphone" , NULL), |
399 | SND_SOC_DAPM_MIC("Headset Mic" , NULL), |
400 | SND_SOC_DAPM_MIC("Int Mic" , NULL), |
401 | SND_SOC_DAPM_SUPPLY("Platform Clock" , SND_SOC_NOPM, 0, 0, |
402 | platform_clock_control, |
403 | SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), |
404 | SND_SOC_DAPM_SPK("SPK" , NULL), |
405 | }; |
406 | |
407 | static const struct snd_soc_dapm_route acp5x_8821_98388_route[] = { |
408 | { "Headphone" , NULL, "HPOL" }, |
409 | { "Headphone" , NULL, "HPOR" }, |
410 | { "MICL" , NULL, "Headset Mic" }, |
411 | { "MICR" , NULL, "Headset Mic" }, |
412 | { "DMIC" , NULL, "Int Mic" }, |
413 | |
414 | { "Headphone" , NULL, "Platform Clock" }, |
415 | { "Headset Mic" , NULL, "Platform Clock" }, |
416 | { "Int Mic" , NULL, "Platform Clock" }, |
417 | |
418 | { "SPK" , NULL, "Left BE_OUT" }, |
419 | { "SPK" , NULL, "Right BE_OUT" }, |
420 | }; |
421 | |
422 | static struct snd_soc_card acp5x_8821_98388_card = { |
423 | .name = "acp5x-max98388" , |
424 | .owner = THIS_MODULE, |
425 | .dai_link = acp5x_8821_98388_dai, |
426 | .num_links = ARRAY_SIZE(acp5x_8821_98388_dai), |
427 | .dapm_widgets = acp5x_8821_98388_widgets, |
428 | .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_98388_widgets), |
429 | .dapm_routes = acp5x_8821_98388_route, |
430 | .num_dapm_routes = ARRAY_SIZE(acp5x_8821_98388_route), |
431 | .codec_conf = acp5x_max98388_conf, |
432 | .num_configs = ARRAY_SIZE(acp5x_max98388_conf), |
433 | .controls = acp5x_8821_controls, |
434 | .num_controls = ARRAY_SIZE(acp5x_8821_controls), |
435 | }; |
436 | |
437 | static const struct dmi_system_id acp5x_vg_quirk_table[] = { |
438 | { |
439 | .matches = { |
440 | DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve" ), |
441 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter" ), |
442 | }, |
443 | .driver_data = (void *)&acp5x_8821_35l41_card, |
444 | }, |
445 | { |
446 | .matches = { |
447 | DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve" ), |
448 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galileo" ), |
449 | }, |
450 | .driver_data = (void *)&acp5x_8821_98388_card, |
451 | }, |
452 | {} |
453 | }; |
454 | |
455 | static int acp5x_probe(struct platform_device *pdev) |
456 | { |
457 | const struct dmi_system_id *dmi_id; |
458 | struct acp5x_platform_info *machine; |
459 | struct device *dev = &pdev->dev; |
460 | struct snd_soc_card *card; |
461 | int ret; |
462 | |
463 | dmi_id = dmi_first_match(list: acp5x_vg_quirk_table); |
464 | if (!dmi_id || !dmi_id->driver_data) |
465 | return -ENODEV; |
466 | |
467 | machine = devm_kzalloc(dev, size: sizeof(*machine), GFP_KERNEL); |
468 | if (!machine) |
469 | return -ENOMEM; |
470 | |
471 | card = dmi_id->driver_data; |
472 | card->dev = dev; |
473 | platform_set_drvdata(pdev, data: card); |
474 | snd_soc_card_set_drvdata(card, data: machine); |
475 | |
476 | ret = devm_snd_soc_register_card(dev, card); |
477 | if (ret) |
478 | return dev_err_probe(dev, err: ret, fmt: "Register card (%s) failed\n" , card->name); |
479 | |
480 | return 0; |
481 | } |
482 | |
483 | static struct platform_driver acp5x_mach_driver = { |
484 | .driver = { |
485 | .name = DRV_NAME, |
486 | .pm = &snd_soc_pm_ops, |
487 | }, |
488 | .probe = acp5x_probe, |
489 | }; |
490 | |
491 | module_platform_driver(acp5x_mach_driver); |
492 | |
493 | MODULE_AUTHOR("Vijendar.Mukunda@amd.com" ); |
494 | MODULE_DESCRIPTION("NAU8821/CS35L41 & NAU8821/MAX98388 audio support" ); |
495 | MODULE_LICENSE("GPL v2" ); |
496 | MODULE_ALIAS("platform:" DRV_NAME); |
497 | |