1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Mediatek 8173 ALSA SoC AFE platform driver
4 *
5 * Copyright (c) 2015 MediaTek Inc.
6 * Author: Koro Chen <koro.chen@mediatek.com>
7 * Sascha Hauer <s.hauer@pengutronix.de>
8 * Hidalgo Huang <hidalgo.huang@mediatek.com>
9 * Ir Lian <ir.lian@mediatek.com>
10 */
11
12 #include <linux/delay.h>
13 #include <linux/module.h>
14 #include <linux/of.h>
15 #include <linux/of_address.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/pm_runtime.h>
18 #include <sound/soc.h>
19 #include "mt8173-afe-common.h"
20 #include "../common/mtk-base-afe.h"
21 #include "../common/mtk-afe-platform-driver.h"
22 #include "../common/mtk-afe-fe-dai.h"
23
24 /*****************************************************************************
25 * R E G I S T E R D E F I N I T I O N
26 *****************************************************************************/
27 #define AUDIO_TOP_CON0 0x0000
28 #define AUDIO_TOP_CON1 0x0004
29 #define AFE_DAC_CON0 0x0010
30 #define AFE_DAC_CON1 0x0014
31 #define AFE_I2S_CON1 0x0034
32 #define AFE_I2S_CON2 0x0038
33 #define AFE_CONN_24BIT 0x006c
34 #define AFE_MEMIF_MSB 0x00cc
35
36 #define AFE_CONN1 0x0024
37 #define AFE_CONN2 0x0028
38 #define AFE_CONN3 0x002c
39 #define AFE_CONN7 0x0460
40 #define AFE_CONN8 0x0464
41 #define AFE_HDMI_CONN0 0x0390
42
43 /* Memory interface */
44 #define AFE_DL1_BASE 0x0040
45 #define AFE_DL1_CUR 0x0044
46 #define AFE_DL1_END 0x0048
47 #define AFE_DL2_BASE 0x0050
48 #define AFE_DL2_CUR 0x0054
49 #define AFE_AWB_BASE 0x0070
50 #define AFE_AWB_CUR 0x007c
51 #define AFE_VUL_BASE 0x0080
52 #define AFE_VUL_CUR 0x008c
53 #define AFE_VUL_END 0x0088
54 #define AFE_DAI_BASE 0x0090
55 #define AFE_DAI_CUR 0x009c
56 #define AFE_MOD_PCM_BASE 0x0330
57 #define AFE_MOD_PCM_CUR 0x033c
58 #define AFE_HDMI_OUT_BASE 0x0374
59 #define AFE_HDMI_OUT_CUR 0x0378
60 #define AFE_HDMI_OUT_END 0x037c
61
62 #define AFE_ADDA_TOP_CON0 0x0120
63 #define AFE_ADDA2_TOP_CON0 0x0600
64
65 #define AFE_HDMI_OUT_CON0 0x0370
66
67 #define AFE_IRQ_MCU_CON 0x03a0
68 #define AFE_IRQ_STATUS 0x03a4
69 #define AFE_IRQ_CLR 0x03a8
70 #define AFE_IRQ_CNT1 0x03ac
71 #define AFE_IRQ_CNT2 0x03b0
72 #define AFE_IRQ_MCU_EN 0x03b4
73 #define AFE_IRQ_CNT5 0x03bc
74 #define AFE_IRQ_CNT7 0x03dc
75
76 #define AFE_TDM_CON1 0x0548
77 #define AFE_TDM_CON2 0x054c
78
79 #define AFE_IRQ_STATUS_BITS 0xff
80
81 /* AUDIO_TOP_CON0 (0x0000) */
82 #define AUD_TCON0_PDN_SPDF (0x1 << 21)
83 #define AUD_TCON0_PDN_HDMI (0x1 << 20)
84 #define AUD_TCON0_PDN_24M (0x1 << 9)
85 #define AUD_TCON0_PDN_22M (0x1 << 8)
86 #define AUD_TCON0_PDN_AFE (0x1 << 2)
87
88 /* AFE_I2S_CON1 (0x0034) */
89 #define AFE_I2S_CON1_LOW_JITTER_CLK (0x1 << 12)
90 #define AFE_I2S_CON1_RATE(x) (((x) & 0xf) << 8)
91 #define AFE_I2S_CON1_FORMAT_I2S (0x1 << 3)
92 #define AFE_I2S_CON1_EN (0x1 << 0)
93
94 /* AFE_I2S_CON2 (0x0038) */
95 #define AFE_I2S_CON2_LOW_JITTER_CLK (0x1 << 12)
96 #define AFE_I2S_CON2_RATE(x) (((x) & 0xf) << 8)
97 #define AFE_I2S_CON2_FORMAT_I2S (0x1 << 3)
98 #define AFE_I2S_CON2_EN (0x1 << 0)
99
100 /* AFE_CONN_24BIT (0x006c) */
101 #define AFE_CONN_24BIT_O04 (0x1 << 4)
102 #define AFE_CONN_24BIT_O03 (0x1 << 3)
103
104 /* AFE_HDMI_CONN0 (0x0390) */
105 #define AFE_HDMI_CONN0_O37_I37 (0x7 << 21)
106 #define AFE_HDMI_CONN0_O36_I36 (0x6 << 18)
107 #define AFE_HDMI_CONN0_O35_I33 (0x3 << 15)
108 #define AFE_HDMI_CONN0_O34_I32 (0x2 << 12)
109 #define AFE_HDMI_CONN0_O33_I35 (0x5 << 9)
110 #define AFE_HDMI_CONN0_O32_I34 (0x4 << 6)
111 #define AFE_HDMI_CONN0_O31_I31 (0x1 << 3)
112 #define AFE_HDMI_CONN0_O30_I30 (0x0 << 0)
113
114 /* AFE_TDM_CON1 (0x0548) */
115 #define AFE_TDM_CON1_LRCK_WIDTH(x) (((x) - 1) << 24)
116 #define AFE_TDM_CON1_32_BCK_CYCLES (0x2 << 12)
117 #define AFE_TDM_CON1_WLEN_32BIT (0x2 << 8)
118 #define AFE_TDM_CON1_MSB_ALIGNED (0x1 << 4)
119 #define AFE_TDM_CON1_1_BCK_DELAY (0x1 << 3)
120 #define AFE_TDM_CON1_LRCK_INV (0x1 << 2)
121 #define AFE_TDM_CON1_BCK_INV (0x1 << 1)
122 #define AFE_TDM_CON1_EN (0x1 << 0)
123
124 enum afe_tdm_ch_start {
125 AFE_TDM_CH_START_O30_O31 = 0,
126 AFE_TDM_CH_START_O32_O33,
127 AFE_TDM_CH_START_O34_O35,
128 AFE_TDM_CH_START_O36_O37,
129 AFE_TDM_CH_ZERO,
130 };
131
132 static const unsigned int mt8173_afe_backup_list[] = {
133 AUDIO_TOP_CON0,
134 AFE_CONN1,
135 AFE_CONN2,
136 AFE_CONN7,
137 AFE_CONN8,
138 AFE_DAC_CON1,
139 AFE_DL1_BASE,
140 AFE_DL1_END,
141 AFE_VUL_BASE,
142 AFE_VUL_END,
143 AFE_HDMI_OUT_BASE,
144 AFE_HDMI_OUT_END,
145 AFE_HDMI_CONN0,
146 AFE_DAC_CON0,
147 };
148
149 struct mt8173_afe_private {
150 struct clk *clocks[MT8173_CLK_NUM];
151 };
152
153 static const struct snd_pcm_hardware mt8173_afe_hardware = {
154 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
155 SNDRV_PCM_INFO_MMAP_VALID),
156 .buffer_bytes_max = 256 * 1024,
157 .period_bytes_min = 512,
158 .period_bytes_max = 128 * 1024,
159 .periods_min = 2,
160 .periods_max = 256,
161 .fifo_size = 0,
162 };
163
164 struct mt8173_afe_rate {
165 unsigned int rate;
166 unsigned int regvalue;
167 };
168
169 static const struct mt8173_afe_rate mt8173_afe_i2s_rates[] = {
170 { .rate = 8000, .regvalue = 0 },
171 { .rate = 11025, .regvalue = 1 },
172 { .rate = 12000, .regvalue = 2 },
173 { .rate = 16000, .regvalue = 4 },
174 { .rate = 22050, .regvalue = 5 },
175 { .rate = 24000, .regvalue = 6 },
176 { .rate = 32000, .regvalue = 8 },
177 { .rate = 44100, .regvalue = 9 },
178 { .rate = 48000, .regvalue = 10 },
179 { .rate = 88000, .regvalue = 11 },
180 { .rate = 96000, .regvalue = 12 },
181 { .rate = 174000, .regvalue = 13 },
182 { .rate = 192000, .regvalue = 14 },
183 };
184
mt8173_afe_i2s_fs(unsigned int sample_rate)185 static int mt8173_afe_i2s_fs(unsigned int sample_rate)
186 {
187 int i;
188
189 for (i = 0; i < ARRAY_SIZE(mt8173_afe_i2s_rates); i++)
190 if (mt8173_afe_i2s_rates[i].rate == sample_rate)
191 return mt8173_afe_i2s_rates[i].regvalue;
192
193 return -EINVAL;
194 }
195
mt8173_afe_set_i2s(struct mtk_base_afe * afe,unsigned int rate)196 static int mt8173_afe_set_i2s(struct mtk_base_afe *afe, unsigned int rate)
197 {
198 unsigned int val;
199 int fs = mt8173_afe_i2s_fs(rate);
200
201 if (fs < 0)
202 return -EINVAL;
203
204 /* from external ADC */
205 regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x1);
206 regmap_update_bits(afe->regmap, AFE_ADDA2_TOP_CON0, 0x1, 0x1);
207
208 /* set input */
209 val = AFE_I2S_CON2_LOW_JITTER_CLK |
210 AFE_I2S_CON2_RATE(fs) |
211 AFE_I2S_CON2_FORMAT_I2S;
212
213 regmap_update_bits(afe->regmap, AFE_I2S_CON2, ~AFE_I2S_CON2_EN, val);
214
215 /* set output */
216 val = AFE_I2S_CON1_LOW_JITTER_CLK |
217 AFE_I2S_CON1_RATE(fs) |
218 AFE_I2S_CON1_FORMAT_I2S;
219
220 regmap_update_bits(afe->regmap, AFE_I2S_CON1, ~AFE_I2S_CON1_EN, val);
221 return 0;
222 }
223
mt8173_afe_set_i2s_enable(struct mtk_base_afe * afe,bool enable)224 static void mt8173_afe_set_i2s_enable(struct mtk_base_afe *afe, bool enable)
225 {
226 unsigned int val;
227
228 regmap_read(afe->regmap, AFE_I2S_CON2, &val);
229 if (!!(val & AFE_I2S_CON2_EN) == enable)
230 return;
231
232 /* input */
233 regmap_update_bits(afe->regmap, AFE_I2S_CON2, 0x1, enable);
234
235 /* output */
236 regmap_update_bits(afe->regmap, AFE_I2S_CON1, 0x1, enable);
237 }
238
mt8173_afe_dais_enable_clks(struct mtk_base_afe * afe,struct clk * m_ck,struct clk * b_ck)239 static int mt8173_afe_dais_enable_clks(struct mtk_base_afe *afe,
240 struct clk *m_ck, struct clk *b_ck)
241 {
242 int ret;
243
244 if (m_ck) {
245 ret = clk_prepare_enable(m_ck);
246 if (ret) {
247 dev_err(afe->dev, "Failed to enable m_ck\n");
248 return ret;
249 }
250 }
251
252 if (b_ck) {
253 ret = clk_prepare_enable(b_ck);
254 if (ret) {
255 dev_err(afe->dev, "Failed to enable b_ck\n");
256 return ret;
257 }
258 }
259 return 0;
260 }
261
mt8173_afe_dais_set_clks(struct mtk_base_afe * afe,struct clk * m_ck,unsigned int mck_rate,struct clk * b_ck,unsigned int bck_rate)262 static int mt8173_afe_dais_set_clks(struct mtk_base_afe *afe,
263 struct clk *m_ck, unsigned int mck_rate,
264 struct clk *b_ck, unsigned int bck_rate)
265 {
266 int ret;
267
268 if (m_ck) {
269 ret = clk_set_rate(m_ck, mck_rate);
270 if (ret) {
271 dev_err(afe->dev, "Failed to set m_ck rate\n");
272 return ret;
273 }
274 }
275
276 if (b_ck) {
277 ret = clk_set_rate(b_ck, bck_rate);
278 if (ret) {
279 dev_err(afe->dev, "Failed to set b_ck rate\n");
280 return ret;
281 }
282 }
283 return 0;
284 }
285
mt8173_afe_dais_disable_clks(struct mtk_base_afe * afe,struct clk * m_ck,struct clk * b_ck)286 static void mt8173_afe_dais_disable_clks(struct mtk_base_afe *afe,
287 struct clk *m_ck, struct clk *b_ck)
288 {
289 clk_disable_unprepare(m_ck);
290 clk_disable_unprepare(b_ck);
291 }
292
mt8173_afe_i2s_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)293 static int mt8173_afe_i2s_startup(struct snd_pcm_substream *substream,
294 struct snd_soc_dai *dai)
295 {
296 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
297
298 if (snd_soc_dai_active(dai))
299 return 0;
300
301 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
302 AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, 0);
303 return 0;
304 }
305
mt8173_afe_i2s_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)306 static void mt8173_afe_i2s_shutdown(struct snd_pcm_substream *substream,
307 struct snd_soc_dai *dai)
308 {
309 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
310
311 if (snd_soc_dai_active(dai))
312 return;
313
314 mt8173_afe_set_i2s_enable(afe, false);
315 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
316 AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M,
317 AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M);
318 }
319
mt8173_afe_i2s_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)320 static int mt8173_afe_i2s_prepare(struct snd_pcm_substream *substream,
321 struct snd_soc_dai *dai)
322 {
323 struct snd_pcm_runtime * const runtime = substream->runtime;
324 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
325 struct mt8173_afe_private *afe_priv = afe->platform_priv;
326 int ret;
327
328 mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S1_M],
329 runtime->rate * 256, NULL, 0);
330 mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S2_M],
331 runtime->rate * 256, NULL, 0);
332 /* config I2S */
333 ret = mt8173_afe_set_i2s(afe, substream->runtime->rate);
334 if (ret)
335 return ret;
336
337 mt8173_afe_set_i2s_enable(afe, true);
338
339 return 0;
340 }
341
mt8173_afe_hdmi_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)342 static int mt8173_afe_hdmi_startup(struct snd_pcm_substream *substream,
343 struct snd_soc_dai *dai)
344 {
345 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
346 struct mt8173_afe_private *afe_priv = afe->platform_priv;
347
348 if (snd_soc_dai_active(dai))
349 return 0;
350
351 mt8173_afe_dais_enable_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
352 afe_priv->clocks[MT8173_CLK_I2S3_B]);
353 return 0;
354 }
355
mt8173_afe_hdmi_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)356 static void mt8173_afe_hdmi_shutdown(struct snd_pcm_substream *substream,
357 struct snd_soc_dai *dai)
358 {
359 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
360 struct mt8173_afe_private *afe_priv = afe->platform_priv;
361
362 if (snd_soc_dai_active(dai))
363 return;
364
365 mt8173_afe_dais_disable_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
366 afe_priv->clocks[MT8173_CLK_I2S3_B]);
367 }
368
mt8173_afe_hdmi_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)369 static int mt8173_afe_hdmi_prepare(struct snd_pcm_substream *substream,
370 struct snd_soc_dai *dai)
371 {
372 struct snd_pcm_runtime * const runtime = substream->runtime;
373 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
374 struct mt8173_afe_private *afe_priv = afe->platform_priv;
375
376 unsigned int val;
377
378 mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
379 runtime->rate * 128,
380 afe_priv->clocks[MT8173_CLK_I2S3_B],
381 runtime->rate * runtime->channels * 32);
382
383 val = AFE_TDM_CON1_BCK_INV |
384 AFE_TDM_CON1_LRCK_INV |
385 AFE_TDM_CON1_1_BCK_DELAY |
386 AFE_TDM_CON1_MSB_ALIGNED | /* I2S mode */
387 AFE_TDM_CON1_WLEN_32BIT |
388 AFE_TDM_CON1_32_BCK_CYCLES |
389 AFE_TDM_CON1_LRCK_WIDTH(32);
390 regmap_update_bits(afe->regmap, AFE_TDM_CON1, ~AFE_TDM_CON1_EN, val);
391
392 /* set tdm2 config */
393 switch (runtime->channels) {
394 case 1:
395 case 2:
396 val = AFE_TDM_CH_START_O30_O31;
397 val |= (AFE_TDM_CH_ZERO << 4);
398 val |= (AFE_TDM_CH_ZERO << 8);
399 val |= (AFE_TDM_CH_ZERO << 12);
400 break;
401 case 3:
402 case 4:
403 val = AFE_TDM_CH_START_O30_O31;
404 val |= (AFE_TDM_CH_START_O32_O33 << 4);
405 val |= (AFE_TDM_CH_ZERO << 8);
406 val |= (AFE_TDM_CH_ZERO << 12);
407 break;
408 case 5:
409 case 6:
410 val = AFE_TDM_CH_START_O30_O31;
411 val |= (AFE_TDM_CH_START_O32_O33 << 4);
412 val |= (AFE_TDM_CH_START_O34_O35 << 8);
413 val |= (AFE_TDM_CH_ZERO << 12);
414 break;
415 case 7:
416 case 8:
417 val = AFE_TDM_CH_START_O30_O31;
418 val |= (AFE_TDM_CH_START_O32_O33 << 4);
419 val |= (AFE_TDM_CH_START_O34_O35 << 8);
420 val |= (AFE_TDM_CH_START_O36_O37 << 12);
421 break;
422 default:
423 val = 0;
424 }
425 regmap_update_bits(afe->regmap, AFE_TDM_CON2, 0x0000ffff, val);
426
427 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
428 0x000000f0, runtime->channels << 4);
429 return 0;
430 }
431
mt8173_afe_hdmi_trigger(struct snd_pcm_substream * substream,int cmd,struct snd_soc_dai * dai)432 static int mt8173_afe_hdmi_trigger(struct snd_pcm_substream *substream, int cmd,
433 struct snd_soc_dai *dai)
434 {
435 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
436
437 dev_info(afe->dev, "%s cmd=%d %s\n", __func__, cmd, dai->name);
438
439 switch (cmd) {
440 case SNDRV_PCM_TRIGGER_START:
441 case SNDRV_PCM_TRIGGER_RESUME:
442 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
443 AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF, 0);
444
445 /* set connections: O30~O37: L/R/LS/RS/C/LFE/CH7/CH8 */
446 regmap_write(afe->regmap, AFE_HDMI_CONN0,
447 AFE_HDMI_CONN0_O30_I30 |
448 AFE_HDMI_CONN0_O31_I31 |
449 AFE_HDMI_CONN0_O32_I34 |
450 AFE_HDMI_CONN0_O33_I35 |
451 AFE_HDMI_CONN0_O34_I32 |
452 AFE_HDMI_CONN0_O35_I33 |
453 AFE_HDMI_CONN0_O36_I36 |
454 AFE_HDMI_CONN0_O37_I37);
455
456 /* enable Out control */
457 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0x1);
458
459 /* enable tdm */
460 regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0x1);
461
462 return 0;
463 case SNDRV_PCM_TRIGGER_STOP:
464 case SNDRV_PCM_TRIGGER_SUSPEND:
465 /* disable tdm */
466 regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0);
467
468 /* disable Out control */
469 regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0);
470
471 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
472 AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF,
473 AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF);
474 return 0;
475 default:
476 return -EINVAL;
477 }
478 }
479
mt8173_memif_fs(struct snd_pcm_substream * substream,unsigned int rate)480 static int mt8173_memif_fs(struct snd_pcm_substream *substream,
481 unsigned int rate)
482 {
483 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
484 struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
485 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
486 struct mtk_base_afe_memif *memif = &afe->memif[asoc_rtd_to_cpu(rtd, 0)->id];
487 int fs;
488
489 if (memif->data->id == MT8173_AFE_MEMIF_DAI ||
490 memif->data->id == MT8173_AFE_MEMIF_MOD_DAI) {
491 switch (rate) {
492 case 8000:
493 fs = 0;
494 break;
495 case 16000:
496 fs = 1;
497 break;
498 case 32000:
499 fs = 2;
500 break;
501 default:
502 return -EINVAL;
503 }
504 } else {
505 fs = mt8173_afe_i2s_fs(rate);
506 }
507 return fs;
508 }
509
mt8173_irq_fs(struct snd_pcm_substream * substream,unsigned int rate)510 static int mt8173_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
511 {
512 return mt8173_afe_i2s_fs(rate);
513 }
514
515 /* BE DAIs */
516 static const struct snd_soc_dai_ops mt8173_afe_i2s_ops = {
517 .startup = mt8173_afe_i2s_startup,
518 .shutdown = mt8173_afe_i2s_shutdown,
519 .prepare = mt8173_afe_i2s_prepare,
520 };
521
522 static const struct snd_soc_dai_ops mt8173_afe_hdmi_ops = {
523 .startup = mt8173_afe_hdmi_startup,
524 .shutdown = mt8173_afe_hdmi_shutdown,
525 .prepare = mt8173_afe_hdmi_prepare,
526 .trigger = mt8173_afe_hdmi_trigger,
527 };
528
529 static struct snd_soc_dai_driver mt8173_afe_pcm_dais[] = {
530 /* FE DAIs: memory intefaces to CPU */
531 {
532 .name = "DL1", /* downlink 1 */
533 .id = MT8173_AFE_MEMIF_DL1,
534 .playback = {
535 .stream_name = "DL1",
536 .channels_min = 1,
537 .channels_max = 2,
538 .rates = SNDRV_PCM_RATE_8000_48000,
539 .formats = SNDRV_PCM_FMTBIT_S16_LE,
540 },
541 .ops = &mtk_afe_fe_ops,
542 }, {
543 .name = "VUL", /* voice uplink */
544 .id = MT8173_AFE_MEMIF_VUL,
545 .capture = {
546 .stream_name = "VUL",
547 .channels_min = 1,
548 .channels_max = 2,
549 .rates = SNDRV_PCM_RATE_8000_48000,
550 .formats = SNDRV_PCM_FMTBIT_S16_LE,
551 },
552 .ops = &mtk_afe_fe_ops,
553 }, {
554 /* BE DAIs */
555 .name = "I2S",
556 .id = MT8173_AFE_IO_I2S,
557 .playback = {
558 .stream_name = "I2S Playback",
559 .channels_min = 1,
560 .channels_max = 2,
561 .rates = SNDRV_PCM_RATE_8000_48000,
562 .formats = SNDRV_PCM_FMTBIT_S16_LE,
563 },
564 .capture = {
565 .stream_name = "I2S Capture",
566 .channels_min = 1,
567 .channels_max = 2,
568 .rates = SNDRV_PCM_RATE_8000_48000,
569 .formats = SNDRV_PCM_FMTBIT_S16_LE,
570 },
571 .ops = &mt8173_afe_i2s_ops,
572 .symmetric_rate = 1,
573 },
574 };
575
576 static struct snd_soc_dai_driver mt8173_afe_hdmi_dais[] = {
577 /* FE DAIs */
578 {
579 .name = "HDMI",
580 .id = MT8173_AFE_MEMIF_HDMI,
581 .playback = {
582 .stream_name = "HDMI",
583 .channels_min = 2,
584 .channels_max = 8,
585 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
586 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
587 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
588 SNDRV_PCM_RATE_192000,
589 .formats = SNDRV_PCM_FMTBIT_S16_LE,
590 },
591 .ops = &mtk_afe_fe_ops,
592 }, {
593 /* BE DAIs */
594 .name = "HDMIO",
595 .id = MT8173_AFE_IO_HDMI,
596 .playback = {
597 .stream_name = "HDMIO Playback",
598 .channels_min = 2,
599 .channels_max = 8,
600 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
601 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
602 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
603 SNDRV_PCM_RATE_192000,
604 .formats = SNDRV_PCM_FMTBIT_S16_LE,
605 },
606 .ops = &mt8173_afe_hdmi_ops,
607 },
608 };
609
610 static const struct snd_kcontrol_new mt8173_afe_o03_mix[] = {
611 SOC_DAPM_SINGLE_AUTODISABLE("I05 Switch", AFE_CONN1, 21, 1, 0),
612 };
613
614 static const struct snd_kcontrol_new mt8173_afe_o04_mix[] = {
615 SOC_DAPM_SINGLE_AUTODISABLE("I06 Switch", AFE_CONN2, 6, 1, 0),
616 };
617
618 static const struct snd_kcontrol_new mt8173_afe_o09_mix[] = {
619 SOC_DAPM_SINGLE_AUTODISABLE("I03 Switch", AFE_CONN3, 0, 1, 0),
620 SOC_DAPM_SINGLE_AUTODISABLE("I17 Switch", AFE_CONN7, 30, 1, 0),
621 };
622
623 static const struct snd_kcontrol_new mt8173_afe_o10_mix[] = {
624 SOC_DAPM_SINGLE_AUTODISABLE("I04 Switch", AFE_CONN3, 3, 1, 0),
625 SOC_DAPM_SINGLE_AUTODISABLE("I18 Switch", AFE_CONN8, 0, 1, 0),
626 };
627
628 static const struct snd_soc_dapm_widget mt8173_afe_pcm_widgets[] = {
629 /* inter-connections */
630 SND_SOC_DAPM_MIXER("I03", SND_SOC_NOPM, 0, 0, NULL, 0),
631 SND_SOC_DAPM_MIXER("I04", SND_SOC_NOPM, 0, 0, NULL, 0),
632 SND_SOC_DAPM_MIXER("I05", SND_SOC_NOPM, 0, 0, NULL, 0),
633 SND_SOC_DAPM_MIXER("I06", SND_SOC_NOPM, 0, 0, NULL, 0),
634 SND_SOC_DAPM_MIXER("I17", SND_SOC_NOPM, 0, 0, NULL, 0),
635 SND_SOC_DAPM_MIXER("I18", SND_SOC_NOPM, 0, 0, NULL, 0),
636
637 SND_SOC_DAPM_MIXER("O03", SND_SOC_NOPM, 0, 0,
638 mt8173_afe_o03_mix, ARRAY_SIZE(mt8173_afe_o03_mix)),
639 SND_SOC_DAPM_MIXER("O04", SND_SOC_NOPM, 0, 0,
640 mt8173_afe_o04_mix, ARRAY_SIZE(mt8173_afe_o04_mix)),
641 SND_SOC_DAPM_MIXER("O09", SND_SOC_NOPM, 0, 0,
642 mt8173_afe_o09_mix, ARRAY_SIZE(mt8173_afe_o09_mix)),
643 SND_SOC_DAPM_MIXER("O10", SND_SOC_NOPM, 0, 0,
644 mt8173_afe_o10_mix, ARRAY_SIZE(mt8173_afe_o10_mix)),
645 };
646
647 static const struct snd_soc_dapm_route mt8173_afe_pcm_routes[] = {
648 {"I05", NULL, "DL1"},
649 {"I06", NULL, "DL1"},
650 {"I2S Playback", NULL, "O03"},
651 {"I2S Playback", NULL, "O04"},
652 {"VUL", NULL, "O09"},
653 {"VUL", NULL, "O10"},
654 {"I03", NULL, "I2S Capture"},
655 {"I04", NULL, "I2S Capture"},
656 {"I17", NULL, "I2S Capture"},
657 {"I18", NULL, "I2S Capture"},
658 { "O03", "I05 Switch", "I05" },
659 { "O04", "I06 Switch", "I06" },
660 { "O09", "I17 Switch", "I17" },
661 { "O09", "I03 Switch", "I03" },
662 { "O10", "I18 Switch", "I18" },
663 { "O10", "I04 Switch", "I04" },
664 };
665
666 static const struct snd_soc_dapm_route mt8173_afe_hdmi_routes[] = {
667 {"HDMIO Playback", NULL, "HDMI"},
668 };
669
670 static const struct snd_soc_component_driver mt8173_afe_pcm_dai_component = {
671 .name = "mt8173-afe-pcm-dai",
672 .dapm_widgets = mt8173_afe_pcm_widgets,
673 .num_dapm_widgets = ARRAY_SIZE(mt8173_afe_pcm_widgets),
674 .dapm_routes = mt8173_afe_pcm_routes,
675 .num_dapm_routes = ARRAY_SIZE(mt8173_afe_pcm_routes),
676 .suspend = mtk_afe_suspend,
677 .resume = mtk_afe_resume,
678 };
679
680 static const struct snd_soc_component_driver mt8173_afe_hdmi_dai_component = {
681 .name = "mt8173-afe-hdmi-dai",
682 .dapm_routes = mt8173_afe_hdmi_routes,
683 .num_dapm_routes = ARRAY_SIZE(mt8173_afe_hdmi_routes),
684 .suspend = mtk_afe_suspend,
685 .resume = mtk_afe_resume,
686 };
687
688 static const char *aud_clks[MT8173_CLK_NUM] = {
689 [MT8173_CLK_INFRASYS_AUD] = "infra_sys_audio_clk",
690 [MT8173_CLK_TOP_PDN_AUD] = "top_pdn_audio",
691 [MT8173_CLK_TOP_PDN_AUD_BUS] = "top_pdn_aud_intbus",
692 [MT8173_CLK_I2S0_M] = "i2s0_m",
693 [MT8173_CLK_I2S1_M] = "i2s1_m",
694 [MT8173_CLK_I2S2_M] = "i2s2_m",
695 [MT8173_CLK_I2S3_M] = "i2s3_m",
696 [MT8173_CLK_I2S3_B] = "i2s3_b",
697 [MT8173_CLK_BCK0] = "bck0",
698 [MT8173_CLK_BCK1] = "bck1",
699 };
700
701 static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
702 {
703 .name = "DL1",
704 .id = MT8173_AFE_MEMIF_DL1,
705 .reg_ofs_base = AFE_DL1_BASE,
706 .reg_ofs_cur = AFE_DL1_CUR,
707 .fs_reg = AFE_DAC_CON1,
708 .fs_shift = 0,
709 .fs_maskbit = 0xf,
710 .mono_reg = AFE_DAC_CON1,
711 .mono_shift = 21,
712 .hd_reg = -1,
713 .enable_reg = AFE_DAC_CON0,
714 .enable_shift = 1,
715 .msb_reg = AFE_MEMIF_MSB,
716 .msb_shift = 0,
717 .agent_disable_reg = -1,
718 }, {
719 .name = "DL2",
720 .id = MT8173_AFE_MEMIF_DL2,
721 .reg_ofs_base = AFE_DL2_BASE,
722 .reg_ofs_cur = AFE_DL2_CUR,
723 .fs_reg = AFE_DAC_CON1,
724 .fs_shift = 4,
725 .fs_maskbit = 0xf,
726 .mono_reg = AFE_DAC_CON1,
727 .mono_shift = 22,
728 .hd_reg = -1,
729 .enable_reg = AFE_DAC_CON0,
730 .enable_shift = 2,
731 .msb_reg = AFE_MEMIF_MSB,
732 .msb_shift = 1,
733 .agent_disable_reg = -1,
734 }, {
735 .name = "VUL",
736 .id = MT8173_AFE_MEMIF_VUL,
737 .reg_ofs_base = AFE_VUL_BASE,
738 .reg_ofs_cur = AFE_VUL_CUR,
739 .fs_reg = AFE_DAC_CON1,
740 .fs_shift = 16,
741 .fs_maskbit = 0xf,
742 .mono_reg = AFE_DAC_CON1,
743 .mono_shift = 27,
744 .hd_reg = -1,
745 .enable_reg = AFE_DAC_CON0,
746 .enable_shift = 3,
747 .msb_reg = AFE_MEMIF_MSB,
748 .msb_shift = 6,
749 .agent_disable_reg = -1,
750 }, {
751 .name = "DAI",
752 .id = MT8173_AFE_MEMIF_DAI,
753 .reg_ofs_base = AFE_DAI_BASE,
754 .reg_ofs_cur = AFE_DAI_CUR,
755 .fs_reg = AFE_DAC_CON0,
756 .fs_shift = 24,
757 .fs_maskbit = 0x3,
758 .mono_reg = -1,
759 .mono_shift = -1,
760 .hd_reg = -1,
761 .enable_reg = AFE_DAC_CON0,
762 .enable_shift = 4,
763 .msb_reg = AFE_MEMIF_MSB,
764 .msb_shift = 5,
765 .agent_disable_reg = -1,
766 }, {
767 .name = "AWB",
768 .id = MT8173_AFE_MEMIF_AWB,
769 .reg_ofs_base = AFE_AWB_BASE,
770 .reg_ofs_cur = AFE_AWB_CUR,
771 .fs_reg = AFE_DAC_CON1,
772 .fs_shift = 12,
773 .fs_maskbit = 0xf,
774 .mono_reg = AFE_DAC_CON1,
775 .mono_shift = 24,
776 .hd_reg = -1,
777 .enable_reg = AFE_DAC_CON0,
778 .enable_shift = 6,
779 .msb_reg = AFE_MEMIF_MSB,
780 .msb_shift = 3,
781 .agent_disable_reg = -1,
782 }, {
783 .name = "MOD_DAI",
784 .id = MT8173_AFE_MEMIF_MOD_DAI,
785 .reg_ofs_base = AFE_MOD_PCM_BASE,
786 .reg_ofs_cur = AFE_MOD_PCM_CUR,
787 .fs_reg = AFE_DAC_CON1,
788 .fs_shift = 30,
789 .fs_maskbit = 0x3,
790 .mono_reg = AFE_DAC_CON1,
791 .mono_shift = 30,
792 .hd_reg = -1,
793 .enable_reg = AFE_DAC_CON0,
794 .enable_shift = 7,
795 .msb_reg = AFE_MEMIF_MSB,
796 .msb_shift = 4,
797 .agent_disable_reg = -1,
798 }, {
799 .name = "HDMI",
800 .id = MT8173_AFE_MEMIF_HDMI,
801 .reg_ofs_base = AFE_HDMI_OUT_BASE,
802 .reg_ofs_cur = AFE_HDMI_OUT_CUR,
803 .fs_reg = -1,
804 .fs_shift = -1,
805 .fs_maskbit = -1,
806 .mono_reg = -1,
807 .mono_shift = -1,
808 .hd_reg = -1,
809 .enable_reg = -1,
810 .msb_reg = AFE_MEMIF_MSB,
811 .msb_shift = 8,
812 .agent_disable_reg = -1,
813 },
814 };
815
816 static const struct mtk_base_irq_data irq_data[MT8173_AFE_IRQ_NUM] = {
817 {
818 .id = MT8173_AFE_IRQ_DL1,
819 .irq_cnt_reg = AFE_IRQ_CNT1,
820 .irq_cnt_shift = 0,
821 .irq_cnt_maskbit = 0x3ffff,
822 .irq_en_reg = AFE_IRQ_MCU_CON,
823 .irq_en_shift = 0,
824 .irq_fs_reg = AFE_IRQ_MCU_CON,
825 .irq_fs_shift = 4,
826 .irq_fs_maskbit = 0xf,
827 .irq_clr_reg = AFE_IRQ_CLR,
828 .irq_clr_shift = 0,
829 }, {
830 .id = MT8173_AFE_IRQ_DL2,
831 .irq_cnt_reg = AFE_IRQ_CNT1,
832 .irq_cnt_shift = 20,
833 .irq_cnt_maskbit = 0x3ffff,
834 .irq_en_reg = AFE_IRQ_MCU_CON,
835 .irq_en_shift = 2,
836 .irq_fs_reg = AFE_IRQ_MCU_CON,
837 .irq_fs_shift = 16,
838 .irq_fs_maskbit = 0xf,
839 .irq_clr_reg = AFE_IRQ_CLR,
840 .irq_clr_shift = 2,
841
842 }, {
843 .id = MT8173_AFE_IRQ_VUL,
844 .irq_cnt_reg = AFE_IRQ_CNT2,
845 .irq_cnt_shift = 0,
846 .irq_cnt_maskbit = 0x3ffff,
847 .irq_en_reg = AFE_IRQ_MCU_CON,
848 .irq_en_shift = 1,
849 .irq_fs_reg = AFE_IRQ_MCU_CON,
850 .irq_fs_shift = 8,
851 .irq_fs_maskbit = 0xf,
852 .irq_clr_reg = AFE_IRQ_CLR,
853 .irq_clr_shift = 1,
854 }, {
855 .id = MT8173_AFE_IRQ_DAI,
856 .irq_cnt_reg = AFE_IRQ_CNT2,
857 .irq_cnt_shift = 20,
858 .irq_cnt_maskbit = 0x3ffff,
859 .irq_en_reg = AFE_IRQ_MCU_CON,
860 .irq_en_shift = 3,
861 .irq_fs_reg = AFE_IRQ_MCU_CON,
862 .irq_fs_shift = 20,
863 .irq_fs_maskbit = 0xf,
864 .irq_clr_reg = AFE_IRQ_CLR,
865 .irq_clr_shift = 3,
866 }, {
867 .id = MT8173_AFE_IRQ_AWB,
868 .irq_cnt_reg = AFE_IRQ_CNT7,
869 .irq_cnt_shift = 0,
870 .irq_cnt_maskbit = 0x3ffff,
871 .irq_en_reg = AFE_IRQ_MCU_CON,
872 .irq_en_shift = 14,
873 .irq_fs_reg = AFE_IRQ_MCU_CON,
874 .irq_fs_shift = 24,
875 .irq_fs_maskbit = 0xf,
876 .irq_clr_reg = AFE_IRQ_CLR,
877 .irq_clr_shift = 6,
878 }, {
879 .id = MT8173_AFE_IRQ_DAI,
880 .irq_cnt_reg = AFE_IRQ_CNT2,
881 .irq_cnt_shift = 20,
882 .irq_cnt_maskbit = 0x3ffff,
883 .irq_en_reg = AFE_IRQ_MCU_CON,
884 .irq_en_shift = 3,
885 .irq_fs_reg = AFE_IRQ_MCU_CON,
886 .irq_fs_shift = 20,
887 .irq_fs_maskbit = 0xf,
888 .irq_clr_reg = AFE_IRQ_CLR,
889 .irq_clr_shift = 3,
890 }, {
891 .id = MT8173_AFE_IRQ_HDMI,
892 .irq_cnt_reg = AFE_IRQ_CNT5,
893 .irq_cnt_shift = 0,
894 .irq_cnt_maskbit = 0x3ffff,
895 .irq_en_reg = AFE_IRQ_MCU_CON,
896 .irq_en_shift = 12,
897 .irq_fs_reg = -1,
898 .irq_fs_maskbit = -1,
899 .irq_clr_reg = AFE_IRQ_CLR,
900 .irq_clr_shift = 4,
901 },
902 };
903
904 static const struct regmap_config mt8173_afe_regmap_config = {
905 .reg_bits = 32,
906 .reg_stride = 4,
907 .val_bits = 32,
908 .max_register = AFE_ADDA2_TOP_CON0,
909 .cache_type = REGCACHE_NONE,
910 };
911
mt8173_afe_irq_handler(int irq,void * dev_id)912 static irqreturn_t mt8173_afe_irq_handler(int irq, void *dev_id)
913 {
914 struct mtk_base_afe *afe = dev_id;
915 unsigned int reg_value;
916 int i, ret;
917
918 ret = regmap_read(afe->regmap, AFE_IRQ_STATUS, ®_value);
919 if (ret) {
920 dev_err(afe->dev, "%s irq status err\n", __func__);
921 reg_value = AFE_IRQ_STATUS_BITS;
922 goto err_irq;
923 }
924
925 for (i = 0; i < MT8173_AFE_MEMIF_NUM; i++) {
926 struct mtk_base_afe_memif *memif = &afe->memif[i];
927 struct mtk_base_afe_irq *irq_p;
928
929 if (memif->irq_usage < 0)
930 continue;
931
932 irq_p = &afe->irqs[memif->irq_usage];
933
934 if (!(reg_value & (1 << irq_p->irq_data->irq_clr_shift)))
935 continue;
936
937 snd_pcm_period_elapsed(memif->substream);
938 }
939
940 err_irq:
941 /* clear irq */
942 regmap_write(afe->regmap, AFE_IRQ_CLR,
943 reg_value & AFE_IRQ_STATUS_BITS);
944
945 return IRQ_HANDLED;
946 }
947
mt8173_afe_runtime_suspend(struct device * dev)948 static int mt8173_afe_runtime_suspend(struct device *dev)
949 {
950 struct mtk_base_afe *afe = dev_get_drvdata(dev);
951 struct mt8173_afe_private *afe_priv = afe->platform_priv;
952
953 /* disable AFE */
954 regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0);
955
956 /* disable AFE clk */
957 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
958 AUD_TCON0_PDN_AFE, AUD_TCON0_PDN_AFE);
959
960 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S1_M]);
961 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S2_M]);
962 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK0]);
963 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK1]);
964 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
965 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
966 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
967 return 0;
968 }
969
mt8173_afe_runtime_resume(struct device * dev)970 static int mt8173_afe_runtime_resume(struct device *dev)
971 {
972 struct mtk_base_afe *afe = dev_get_drvdata(dev);
973 struct mt8173_afe_private *afe_priv = afe->platform_priv;
974 int ret;
975
976 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
977 if (ret)
978 return ret;
979
980 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
981 if (ret)
982 goto err_infra;
983
984 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
985 if (ret)
986 goto err_top_aud_bus;
987
988 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_BCK0]);
989 if (ret)
990 goto err_top_aud;
991
992 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_BCK1]);
993 if (ret)
994 goto err_bck0;
995 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_I2S1_M]);
996 if (ret)
997 goto err_i2s1_m;
998 ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_I2S2_M]);
999 if (ret)
1000 goto err_i2s2_m;
1001
1002 /* enable AFE clk */
1003 regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUD_TCON0_PDN_AFE, 0);
1004
1005 /* set O3/O4 16bits */
1006 regmap_update_bits(afe->regmap, AFE_CONN_24BIT,
1007 AFE_CONN_24BIT_O03 | AFE_CONN_24BIT_O04, 0);
1008
1009 /* unmask all IRQs */
1010 regmap_update_bits(afe->regmap, AFE_IRQ_MCU_EN, 0xff, 0xff);
1011
1012 /* enable AFE */
1013 regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1);
1014 return 0;
1015
1016 err_i2s1_m:
1017 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S1_M]);
1018 err_i2s2_m:
1019 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S2_M]);
1020 err_bck0:
1021 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK0]);
1022 err_top_aud:
1023 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
1024 err_top_aud_bus:
1025 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
1026 err_infra:
1027 clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
1028 return ret;
1029 }
1030
mt8173_afe_init_audio_clk(struct mtk_base_afe * afe)1031 static int mt8173_afe_init_audio_clk(struct mtk_base_afe *afe)
1032 {
1033 size_t i;
1034 struct mt8173_afe_private *afe_priv = afe->platform_priv;
1035
1036 for (i = 0; i < ARRAY_SIZE(aud_clks); i++) {
1037 afe_priv->clocks[i] = devm_clk_get(afe->dev, aud_clks[i]);
1038 if (IS_ERR(afe_priv->clocks[i])) {
1039 dev_err(afe->dev, "%s devm_clk_get %s fail\n",
1040 __func__, aud_clks[i]);
1041 return PTR_ERR(afe_priv->clocks[i]);
1042 }
1043 }
1044 clk_set_rate(afe_priv->clocks[MT8173_CLK_BCK0], 22579200); /* 22M */
1045 clk_set_rate(afe_priv->clocks[MT8173_CLK_BCK1], 24576000); /* 24M */
1046 return 0;
1047 }
1048
mt8173_afe_pcm_dev_probe(struct platform_device * pdev)1049 static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev)
1050 {
1051 int ret, i;
1052 int irq_id;
1053 struct mtk_base_afe *afe;
1054 struct mt8173_afe_private *afe_priv;
1055 struct snd_soc_component *comp_pcm, *comp_hdmi;
1056
1057 ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(33));
1058 if (ret)
1059 return ret;
1060
1061 afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL);
1062 if (!afe)
1063 return -ENOMEM;
1064
1065 afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv),
1066 GFP_KERNEL);
1067 afe_priv = afe->platform_priv;
1068 if (!afe_priv)
1069 return -ENOMEM;
1070
1071 afe->dev = &pdev->dev;
1072
1073 irq_id = platform_get_irq(pdev, 0);
1074 if (irq_id <= 0)
1075 return irq_id < 0 ? irq_id : -ENXIO;
1076
1077 afe->base_addr = devm_platform_ioremap_resource(pdev, 0);
1078 if (IS_ERR(afe->base_addr))
1079 return PTR_ERR(afe->base_addr);
1080
1081 afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr,
1082 &mt8173_afe_regmap_config);
1083 if (IS_ERR(afe->regmap))
1084 return PTR_ERR(afe->regmap);
1085
1086 /* initial audio related clock */
1087 ret = mt8173_afe_init_audio_clk(afe);
1088 if (ret) {
1089 dev_err(afe->dev, "mt8173_afe_init_audio_clk fail\n");
1090 return ret;
1091 }
1092
1093 /* memif % irq initialize*/
1094 afe->memif_size = MT8173_AFE_MEMIF_NUM;
1095 afe->memif = devm_kcalloc(afe->dev, afe->memif_size,
1096 sizeof(*afe->memif), GFP_KERNEL);
1097 if (!afe->memif)
1098 return -ENOMEM;
1099
1100 afe->irqs_size = MT8173_AFE_IRQ_NUM;
1101 afe->irqs = devm_kcalloc(afe->dev, afe->irqs_size,
1102 sizeof(*afe->irqs), GFP_KERNEL);
1103 if (!afe->irqs)
1104 return -ENOMEM;
1105
1106 for (i = 0; i < afe->irqs_size; i++) {
1107 afe->memif[i].data = &memif_data[i];
1108 afe->irqs[i].irq_data = &irq_data[i];
1109 afe->irqs[i].irq_occupyed = true;
1110 afe->memif[i].irq_usage = i;
1111 afe->memif[i].const_irq = 1;
1112 }
1113
1114 afe->mtk_afe_hardware = &mt8173_afe_hardware;
1115 afe->memif_fs = mt8173_memif_fs;
1116 afe->irq_fs = mt8173_irq_fs;
1117
1118 platform_set_drvdata(pdev, afe);
1119
1120 pm_runtime_enable(&pdev->dev);
1121 if (!pm_runtime_enabled(&pdev->dev)) {
1122 ret = mt8173_afe_runtime_resume(&pdev->dev);
1123 if (ret)
1124 goto err_pm_disable;
1125 }
1126
1127 afe->reg_back_up_list = mt8173_afe_backup_list;
1128 afe->reg_back_up_list_num = ARRAY_SIZE(mt8173_afe_backup_list);
1129 afe->runtime_resume = mt8173_afe_runtime_resume;
1130 afe->runtime_suspend = mt8173_afe_runtime_suspend;
1131
1132 ret = devm_snd_soc_register_component(&pdev->dev,
1133 &mtk_afe_pcm_platform,
1134 NULL, 0);
1135 if (ret)
1136 goto err_pm_disable;
1137
1138 comp_pcm = devm_kzalloc(&pdev->dev, sizeof(*comp_pcm), GFP_KERNEL);
1139 if (!comp_pcm) {
1140 ret = -ENOMEM;
1141 goto err_pm_disable;
1142 }
1143
1144 ret = snd_soc_component_initialize(comp_pcm,
1145 &mt8173_afe_pcm_dai_component,
1146 &pdev->dev);
1147 if (ret)
1148 goto err_pm_disable;
1149
1150 #ifdef CONFIG_DEBUG_FS
1151 comp_pcm->debugfs_prefix = "pcm";
1152 #endif
1153
1154 ret = snd_soc_add_component(comp_pcm,
1155 mt8173_afe_pcm_dais,
1156 ARRAY_SIZE(mt8173_afe_pcm_dais));
1157 if (ret)
1158 goto err_pm_disable;
1159
1160 comp_hdmi = devm_kzalloc(&pdev->dev, sizeof(*comp_hdmi), GFP_KERNEL);
1161 if (!comp_hdmi) {
1162 ret = -ENOMEM;
1163 goto err_cleanup_components;
1164 }
1165
1166 ret = snd_soc_component_initialize(comp_hdmi,
1167 &mt8173_afe_hdmi_dai_component,
1168 &pdev->dev);
1169 if (ret)
1170 goto err_cleanup_components;
1171
1172 #ifdef CONFIG_DEBUG_FS
1173 comp_hdmi->debugfs_prefix = "hdmi";
1174 #endif
1175
1176 ret = snd_soc_add_component(comp_hdmi,
1177 mt8173_afe_hdmi_dais,
1178 ARRAY_SIZE(mt8173_afe_hdmi_dais));
1179 if (ret)
1180 goto err_cleanup_components;
1181
1182 ret = devm_request_irq(afe->dev, irq_id, mt8173_afe_irq_handler,
1183 0, "Afe_ISR_Handle", (void *)afe);
1184 if (ret) {
1185 dev_err(afe->dev, "could not request_irq\n");
1186 goto err_cleanup_components;
1187 }
1188
1189 dev_info(&pdev->dev, "MT8173 AFE driver initialized.\n");
1190 return 0;
1191
1192 err_cleanup_components:
1193 snd_soc_unregister_component(&pdev->dev);
1194 err_pm_disable:
1195 pm_runtime_disable(&pdev->dev);
1196 return ret;
1197 }
1198
mt8173_afe_pcm_dev_remove(struct platform_device * pdev)1199 static void mt8173_afe_pcm_dev_remove(struct platform_device *pdev)
1200 {
1201 snd_soc_unregister_component(&pdev->dev);
1202
1203 pm_runtime_disable(&pdev->dev);
1204 if (!pm_runtime_status_suspended(&pdev->dev))
1205 mt8173_afe_runtime_suspend(&pdev->dev);
1206 }
1207
1208 static const struct of_device_id mt8173_afe_pcm_dt_match[] = {
1209 { .compatible = "mediatek,mt8173-afe-pcm", },
1210 { }
1211 };
1212 MODULE_DEVICE_TABLE(of, mt8173_afe_pcm_dt_match);
1213
1214 static const struct dev_pm_ops mt8173_afe_pm_ops = {
1215 SET_RUNTIME_PM_OPS(mt8173_afe_runtime_suspend,
1216 mt8173_afe_runtime_resume, NULL)
1217 };
1218
1219 static struct platform_driver mt8173_afe_pcm_driver = {
1220 .driver = {
1221 .name = "mt8173-afe-pcm",
1222 .of_match_table = mt8173_afe_pcm_dt_match,
1223 .pm = &mt8173_afe_pm_ops,
1224 },
1225 .probe = mt8173_afe_pcm_dev_probe,
1226 .remove_new = mt8173_afe_pcm_dev_remove,
1227 };
1228
1229 module_platform_driver(mt8173_afe_pcm_driver);
1230
1231 MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver");
1232 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
1233 MODULE_LICENSE("GPL v2");
1234