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Btrfs: fix list transaction->pending_ordered corruption
[linux/fpc-iii.git] / sound / soc / codecs / tlv320aic32x4.c
blob6ea662db2410714c7a945234cb016c779a12a4eb
1 /*
2 * linux/sound/soc/codecs/tlv320aic32x4.c
3 *
4 * Copyright 2011 Vista Silicon S.L.
5 *
6 * Author: Javier Martin <javier.martin@vista-silicon.com>
7 *
8 * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
23 * MA 02110-1301, USA.
24 */
25
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/init.h>
29 #include <linux/delay.h>
30 #include <linux/pm.h>
31 #include <linux/gpio.h>
32 #include <linux/of_gpio.h>
33 #include <linux/i2c.h>
34 #include <linux/cdev.h>
35 #include <linux/slab.h>
36 #include <linux/clk.h>
37 #include <linux/regulator/consumer.h>
38
39 #include <sound/tlv320aic32x4.h>
40 #include <sound/core.h>
41 #include <sound/pcm.h>
42 #include <sound/pcm_params.h>
43 #include <sound/soc.h>
44 #include <sound/soc-dapm.h>
45 #include <sound/initval.h>
46 #include <sound/tlv.h>
47
48 #include "tlv320aic32x4.h"
49
50 struct aic32x4_rate_divs {
51 u32 mclk;
52 u32 rate;
53 u8 p_val;
54 u8 pll_j;
55 u16 pll_d;
56 u16 dosr;
57 u8 ndac;
58 u8 mdac;
59 u8 aosr;
60 u8 nadc;
61 u8 madc;
62 u8 blck_N;
63 };
64
65 struct aic32x4_priv {
66 struct regmap *regmap;
67 u32 sysclk;
68 u32 power_cfg;
69 u32 micpga_routing;
70 bool swapdacs;
71 int rstn_gpio;
72 struct clk *mclk;
73
74 struct regulator *supply_ldo;
75 struct regulator *supply_iov;
76 struct regulator *supply_dv;
77 struct regulator *supply_av;
78 };
79
80 /* 0dB min, 0.5dB steps */
81 static DECLARE_TLV_DB_SCALE(tlv_step_0_5, 0, 50, 0);
82 /* -63.5dB min, 0.5dB steps */
83 static DECLARE_TLV_DB_SCALE(tlv_pcm, -6350, 50, 0);
84 /* -6dB min, 1dB steps */
85 static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0);
86 /* -12dB min, 0.5dB steps */
87 static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);
88
89 static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
90 SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
91 AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
92 SOC_DOUBLE_R_S_TLV("HP Driver Gain Volume", AIC32X4_HPLGAIN,
93 AIC32X4_HPRGAIN, 0, -0x6, 0x1d, 5, 0,
94 tlv_driver_gain),
95 SOC_DOUBLE_R_S_TLV("LO Driver Gain Volume", AIC32X4_LOLGAIN,
96 AIC32X4_LORGAIN, 0, -0x6, 0x1d, 5, 0,
97 tlv_driver_gain),
98 SOC_DOUBLE_R("HP DAC Playback Switch", AIC32X4_HPLGAIN,
99 AIC32X4_HPRGAIN, 6, 0x01, 1),
100 SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
101 AIC32X4_LORGAIN, 6, 0x01, 1),
102 SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL,
103 AIC32X4_RMICPGAVOL, 7, 0x01, 1),
104
105 SOC_SINGLE("ADCFGA Left Mute Switch", AIC32X4_ADCFGA, 7, 1, 0),
106 SOC_SINGLE("ADCFGA Right Mute Switch", AIC32X4_ADCFGA, 3, 1, 0),
107
108 SOC_DOUBLE_R_S_TLV("ADC Level Volume", AIC32X4_LADCVOL,
109 AIC32X4_RADCVOL, 0, -0x18, 0x28, 6, 0, tlv_adc_vol),
110 SOC_DOUBLE_R_TLV("PGA Level Volume", AIC32X4_LMICPGAVOL,
111 AIC32X4_RMICPGAVOL, 0, 0x5f, 0, tlv_step_0_5),
112
113 SOC_SINGLE("Auto-mute Switch", AIC32X4_DACMUTE, 4, 7, 0),
114
115 SOC_SINGLE("AGC Left Switch", AIC32X4_LAGC1, 7, 1, 0),
116 SOC_SINGLE("AGC Right Switch", AIC32X4_RAGC1, 7, 1, 0),
117 SOC_DOUBLE_R("AGC Target Level", AIC32X4_LAGC1, AIC32X4_RAGC1,
118 4, 0x07, 0),
119 SOC_DOUBLE_R("AGC Gain Hysteresis", AIC32X4_LAGC1, AIC32X4_RAGC1,
120 0, 0x03, 0),
121 SOC_DOUBLE_R("AGC Hysteresis", AIC32X4_LAGC2, AIC32X4_RAGC2,
122 6, 0x03, 0),
123 SOC_DOUBLE_R("AGC Noise Threshold", AIC32X4_LAGC2, AIC32X4_RAGC2,
124 1, 0x1F, 0),
125 SOC_DOUBLE_R("AGC Max PGA", AIC32X4_LAGC3, AIC32X4_RAGC3,
126 0, 0x7F, 0),
127 SOC_DOUBLE_R("AGC Attack Time", AIC32X4_LAGC4, AIC32X4_RAGC4,
128 3, 0x1F, 0),
129 SOC_DOUBLE_R("AGC Decay Time", AIC32X4_LAGC5, AIC32X4_RAGC5,
130 3, 0x1F, 0),
131 SOC_DOUBLE_R("AGC Noise Debounce", AIC32X4_LAGC6, AIC32X4_RAGC6,
132 0, 0x1F, 0),
133 SOC_DOUBLE_R("AGC Signal Debounce", AIC32X4_LAGC7, AIC32X4_RAGC7,
134 0, 0x0F, 0),
135 };
136
137 static const struct aic32x4_rate_divs aic32x4_divs[] = {
138 /* 8k rate */
139 {AIC32X4_FREQ_12000000, 8000, 1, 7, 6800, 768, 5, 3, 128, 5, 18, 24},
140 {AIC32X4_FREQ_24000000, 8000, 2, 7, 6800, 768, 15, 1, 64, 45, 4, 24},
141 {AIC32X4_FREQ_25000000, 8000, 2, 7, 3728, 768, 15, 1, 64, 45, 4, 24},
142 /* 11.025k rate */
143 {AIC32X4_FREQ_12000000, 11025, 1, 7, 5264, 512, 8, 2, 128, 8, 8, 16},
144 {AIC32X4_FREQ_24000000, 11025, 2, 7, 5264, 512, 16, 1, 64, 32, 4, 16},
145 /* 16k rate */
146 {AIC32X4_FREQ_12000000, 16000, 1, 7, 6800, 384, 5, 3, 128, 5, 9, 12},
147 {AIC32X4_FREQ_24000000, 16000, 2, 7, 6800, 384, 15, 1, 64, 18, 5, 12},
148 {AIC32X4_FREQ_25000000, 16000, 2, 7, 3728, 384, 15, 1, 64, 18, 5, 12},
149 /* 22.05k rate */
150 {AIC32X4_FREQ_12000000, 22050, 1, 7, 5264, 256, 4, 4, 128, 4, 8, 8},
151 {AIC32X4_FREQ_24000000, 22050, 2, 7, 5264, 256, 16, 1, 64, 16, 4, 8},
152 {AIC32X4_FREQ_25000000, 22050, 2, 7, 2253, 256, 16, 1, 64, 16, 4, 8},
153 /* 32k rate */
154 {AIC32X4_FREQ_12000000, 32000, 1, 7, 1680, 192, 2, 7, 64, 2, 21, 6},
155 {AIC32X4_FREQ_24000000, 32000, 2, 7, 1680, 192, 7, 2, 64, 7, 6, 6},
156 /* 44.1k rate */
157 {AIC32X4_FREQ_12000000, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
158 {AIC32X4_FREQ_24000000, 44100, 2, 7, 5264, 128, 8, 2, 64, 8, 4, 4},
159 {AIC32X4_FREQ_25000000, 44100, 2, 7, 2253, 128, 8, 2, 64, 8, 4, 4},
160 /* 48k rate */
161 {AIC32X4_FREQ_12000000, 48000, 1, 8, 1920, 128, 2, 8, 128, 2, 8, 4},
162 {AIC32X4_FREQ_24000000, 48000, 2, 8, 1920, 128, 8, 2, 64, 8, 4, 4},
163 {AIC32X4_FREQ_25000000, 48000, 2, 7, 8643, 128, 8, 2, 64, 8, 4, 4}
164 };
165
166 static const struct snd_kcontrol_new hpl_output_mixer_controls[] = {
167 SOC_DAPM_SINGLE("L_DAC Switch", AIC32X4_HPLROUTE, 3, 1, 0),
168 SOC_DAPM_SINGLE("IN1_L Switch", AIC32X4_HPLROUTE, 2, 1, 0),
169 };
170
171 static const struct snd_kcontrol_new hpr_output_mixer_controls[] = {
172 SOC_DAPM_SINGLE("R_DAC Switch", AIC32X4_HPRROUTE, 3, 1, 0),
173 SOC_DAPM_SINGLE("IN1_R Switch", AIC32X4_HPRROUTE, 2, 1, 0),
174 };
175
176 static const struct snd_kcontrol_new lol_output_mixer_controls[] = {
177 SOC_DAPM_SINGLE("L_DAC Switch", AIC32X4_LOLROUTE, 3, 1, 0),
178 };
179
180 static const struct snd_kcontrol_new lor_output_mixer_controls[] = {
181 SOC_DAPM_SINGLE("R_DAC Switch", AIC32X4_LORROUTE, 3, 1, 0),
182 };
183
184 static const struct snd_kcontrol_new left_input_mixer_controls[] = {
185 SOC_DAPM_SINGLE("IN1_L P Switch", AIC32X4_LMICPGAPIN, 6, 1, 0),
186 SOC_DAPM_SINGLE("IN2_L P Switch", AIC32X4_LMICPGAPIN, 4, 1, 0),
187 SOC_DAPM_SINGLE("IN3_L P Switch", AIC32X4_LMICPGAPIN, 2, 1, 0),
188 };
189
190 static const struct snd_kcontrol_new right_input_mixer_controls[] = {
191 SOC_DAPM_SINGLE("IN1_R P Switch", AIC32X4_RMICPGAPIN, 6, 1, 0),
192 SOC_DAPM_SINGLE("IN2_R P Switch", AIC32X4_RMICPGAPIN, 4, 1, 0),
193 SOC_DAPM_SINGLE("IN3_R P Switch", AIC32X4_RMICPGAPIN, 2, 1, 0),
194 };
195
196 static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
197 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", AIC32X4_DACSETUP, 7, 0),
198 SND_SOC_DAPM_MIXER("HPL Output Mixer", SND_SOC_NOPM, 0, 0,
199 &hpl_output_mixer_controls[0],
200 ARRAY_SIZE(hpl_output_mixer_controls)),
201 SND_SOC_DAPM_PGA("HPL Power", AIC32X4_OUTPWRCTL, 5, 0, NULL, 0),
202
203 SND_SOC_DAPM_MIXER("LOL Output Mixer", SND_SOC_NOPM, 0, 0,
204 &lol_output_mixer_controls[0],
205 ARRAY_SIZE(lol_output_mixer_controls)),
206 SND_SOC_DAPM_PGA("LOL Power", AIC32X4_OUTPWRCTL, 3, 0, NULL, 0),
207
208 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", AIC32X4_DACSETUP, 6, 0),
209 SND_SOC_DAPM_MIXER("HPR Output Mixer", SND_SOC_NOPM, 0, 0,
210 &hpr_output_mixer_controls[0],
211 ARRAY_SIZE(hpr_output_mixer_controls)),
212 SND_SOC_DAPM_PGA("HPR Power", AIC32X4_OUTPWRCTL, 4, 0, NULL, 0),
213 SND_SOC_DAPM_MIXER("LOR Output Mixer", SND_SOC_NOPM, 0, 0,
214 &lor_output_mixer_controls[0],
215 ARRAY_SIZE(lor_output_mixer_controls)),
216 SND_SOC_DAPM_PGA("LOR Power", AIC32X4_OUTPWRCTL, 2, 0, NULL, 0),
217 SND_SOC_DAPM_MIXER("Left Input Mixer", SND_SOC_NOPM, 0, 0,
218 &left_input_mixer_controls[0],
219 ARRAY_SIZE(left_input_mixer_controls)),
220 SND_SOC_DAPM_MIXER("Right Input Mixer", SND_SOC_NOPM, 0, 0,
221 &right_input_mixer_controls[0],
222 ARRAY_SIZE(right_input_mixer_controls)),
223 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", AIC32X4_ADCSETUP, 7, 0),
224 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", AIC32X4_ADCSETUP, 6, 0),
225 SND_SOC_DAPM_MICBIAS("Mic Bias", AIC32X4_MICBIAS, 6, 0),
226
227 SND_SOC_DAPM_OUTPUT("HPL"),
228 SND_SOC_DAPM_OUTPUT("HPR"),
229 SND_SOC_DAPM_OUTPUT("LOL"),
230 SND_SOC_DAPM_OUTPUT("LOR"),
231 SND_SOC_DAPM_INPUT("IN1_L"),
232 SND_SOC_DAPM_INPUT("IN1_R"),
233 SND_SOC_DAPM_INPUT("IN2_L"),
234 SND_SOC_DAPM_INPUT("IN2_R"),
235 SND_SOC_DAPM_INPUT("IN3_L"),
236 SND_SOC_DAPM_INPUT("IN3_R"),
237 };
238
239 static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
240 /* Left Output */
241 {"HPL Output Mixer", "L_DAC Switch", "Left DAC"},
242 {"HPL Output Mixer", "IN1_L Switch", "IN1_L"},
243
244 {"HPL Power", NULL, "HPL Output Mixer"},
245 {"HPL", NULL, "HPL Power"},
246
247 {"LOL Output Mixer", "L_DAC Switch", "Left DAC"},
248
249 {"LOL Power", NULL, "LOL Output Mixer"},
250 {"LOL", NULL, "LOL Power"},
251
252 /* Right Output */
253 {"HPR Output Mixer", "R_DAC Switch", "Right DAC"},
254 {"HPR Output Mixer", "IN1_R Switch", "IN1_R"},
255
256 {"HPR Power", NULL, "HPR Output Mixer"},
257 {"HPR", NULL, "HPR Power"},
258
259 {"LOR Output Mixer", "R_DAC Switch", "Right DAC"},
260
261 {"LOR Power", NULL, "LOR Output Mixer"},
262 {"LOR", NULL, "LOR Power"},
263
264 /* Left input */
265 {"Left Input Mixer", "IN1_L P Switch", "IN1_L"},
266 {"Left Input Mixer", "IN2_L P Switch", "IN2_L"},
267 {"Left Input Mixer", "IN3_L P Switch", "IN3_L"},
268
269 {"Left ADC", NULL, "Left Input Mixer"},
270
271 /* Right Input */
272 {"Right Input Mixer", "IN1_R P Switch", "IN1_R"},
273 {"Right Input Mixer", "IN2_R P Switch", "IN2_R"},
274 {"Right Input Mixer", "IN3_R P Switch", "IN3_R"},
275
276 {"Right ADC", NULL, "Right Input Mixer"},
277 };
278
279 static const struct regmap_range_cfg aic32x4_regmap_pages[] = {
280 {
281 .selector_reg = 0,
282 .selector_mask = 0xff,
283 .window_start = 0,
284 .window_len = 128,
285 .range_min = 0,
286 .range_max = AIC32X4_RMICPGAVOL,
287 },
288 };
289
290 static const struct regmap_config aic32x4_regmap = {
291 .reg_bits = 8,
292 .val_bits = 8,
293
294 .max_register = AIC32X4_RMICPGAVOL,
295 .ranges = aic32x4_regmap_pages,
296 .num_ranges = ARRAY_SIZE(aic32x4_regmap_pages),
297 };
298
299 static inline int aic32x4_get_divs(int mclk, int rate)
300 {
301 int i;
302
303 for (i = 0; i < ARRAY_SIZE(aic32x4_divs); i++) {
304 if ((aic32x4_divs[i].rate == rate)
305 && (aic32x4_divs[i].mclk == mclk)) {
306 return i;
307 }
308 }
309 printk(KERN_ERR "aic32x4: master clock and sample rate is not supported\n");
310 return -EINVAL;
311 }
312
313 static int aic32x4_set_dai_sysclk(struct snd_soc_dai *codec_dai,
314 int clk_id, unsigned int freq, int dir)
315 {
316 struct snd_soc_codec *codec = codec_dai->codec;
317 struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
318
319 switch (freq) {
320 case AIC32X4_FREQ_12000000:
321 case AIC32X4_FREQ_24000000:
322 case AIC32X4_FREQ_25000000:
323 aic32x4->sysclk = freq;
324 return 0;
325 }
326 printk(KERN_ERR "aic32x4: invalid frequency to set DAI system clock\n");
327 return -EINVAL;
328 }
329
330 static int aic32x4_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
331 {
332 struct snd_soc_codec *codec = codec_dai->codec;
333 u8 iface_reg_1;
334 u8 iface_reg_2;
335 u8 iface_reg_3;
336
337 iface_reg_1 = snd_soc_read(codec, AIC32X4_IFACE1);
338 iface_reg_1 = iface_reg_1 & ~(3 << 6 | 3 << 2);
339 iface_reg_2 = snd_soc_read(codec, AIC32X4_IFACE2);
340 iface_reg_2 = 0;
341 iface_reg_3 = snd_soc_read(codec, AIC32X4_IFACE3);
342 iface_reg_3 = iface_reg_3 & ~(1 << 3);
343
344 /* set master/slave audio interface */
345 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
346 case SND_SOC_DAIFMT_CBM_CFM:
347 iface_reg_1 |= AIC32X4_BCLKMASTER | AIC32X4_WCLKMASTER;
348 break;
349 case SND_SOC_DAIFMT_CBS_CFS:
350 break;
351 default:
352 printk(KERN_ERR "aic32x4: invalid DAI master/slave interface\n");
353 return -EINVAL;
354 }
355
356 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
357 case SND_SOC_DAIFMT_I2S:
358 break;
359 case SND_SOC_DAIFMT_DSP_A:
360 iface_reg_1 |= (AIC32X4_DSP_MODE << AIC32X4_PLLJ_SHIFT);
361 iface_reg_3 |= (1 << 3); /* invert bit clock */
362 iface_reg_2 = 0x01; /* add offset 1 */
363 break;
364 case SND_SOC_DAIFMT_DSP_B:
365 iface_reg_1 |= (AIC32X4_DSP_MODE << AIC32X4_PLLJ_SHIFT);
366 iface_reg_3 |= (1 << 3); /* invert bit clock */
367 break;
368 case SND_SOC_DAIFMT_RIGHT_J:
369 iface_reg_1 |=
370 (AIC32X4_RIGHT_JUSTIFIED_MODE << AIC32X4_PLLJ_SHIFT);
371 break;
372 case SND_SOC_DAIFMT_LEFT_J:
373 iface_reg_1 |=
374 (AIC32X4_LEFT_JUSTIFIED_MODE << AIC32X4_PLLJ_SHIFT);
375 break;
376 default:
377 printk(KERN_ERR "aic32x4: invalid DAI interface format\n");
378 return -EINVAL;
379 }
380
381 snd_soc_write(codec, AIC32X4_IFACE1, iface_reg_1);
382 snd_soc_write(codec, AIC32X4_IFACE2, iface_reg_2);
383 snd_soc_write(codec, AIC32X4_IFACE3, iface_reg_3);
384 return 0;
385 }
386
387 static int aic32x4_hw_params(struct snd_pcm_substream *substream,
388 struct snd_pcm_hw_params *params,
389 struct snd_soc_dai *dai)
390 {
391 struct snd_soc_codec *codec = dai->codec;
392 struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
393 u8 data;
394 int i;
395
396 i = aic32x4_get_divs(aic32x4->sysclk, params_rate(params));
397 if (i < 0) {
398 printk(KERN_ERR "aic32x4: sampling rate not supported\n");
399 return i;
400 }
401
402 /* Use PLL as CODEC_CLKIN and DAC_MOD_CLK as BDIV_CLKIN */
403 snd_soc_write(codec, AIC32X4_CLKMUX, AIC32X4_PLLCLKIN);
404 snd_soc_write(codec, AIC32X4_IFACE3, AIC32X4_DACMOD2BCLK);
405
406 /* We will fix R value to 1 and will make P & J=K.D as varialble */
407 data = snd_soc_read(codec, AIC32X4_PLLPR);
408 data &= ~(7 << 4);
409 snd_soc_write(codec, AIC32X4_PLLPR,
410 (data | (aic32x4_divs[i].p_val << 4) | 0x01));
411
412 snd_soc_write(codec, AIC32X4_PLLJ, aic32x4_divs[i].pll_j);
413
414 snd_soc_write(codec, AIC32X4_PLLDMSB, (aic32x4_divs[i].pll_d >> 8));
415 snd_soc_write(codec, AIC32X4_PLLDLSB,
416 (aic32x4_divs[i].pll_d & 0xff));
417
418 /* NDAC divider value */
419 data = snd_soc_read(codec, AIC32X4_NDAC);
420 data &= ~(0x7f);
421 snd_soc_write(codec, AIC32X4_NDAC, data | aic32x4_divs[i].ndac);
422
423 /* MDAC divider value */
424 data = snd_soc_read(codec, AIC32X4_MDAC);
425 data &= ~(0x7f);
426 snd_soc_write(codec, AIC32X4_MDAC, data | aic32x4_divs[i].mdac);
427
428 /* DOSR MSB & LSB values */
429 snd_soc_write(codec, AIC32X4_DOSRMSB, aic32x4_divs[i].dosr >> 8);
430 snd_soc_write(codec, AIC32X4_DOSRLSB,
431 (aic32x4_divs[i].dosr & 0xff));
432
433 /* NADC divider value */
434 data = snd_soc_read(codec, AIC32X4_NADC);
435 data &= ~(0x7f);
436 snd_soc_write(codec, AIC32X4_NADC, data | aic32x4_divs[i].nadc);
437
438 /* MADC divider value */
439 data = snd_soc_read(codec, AIC32X4_MADC);
440 data &= ~(0x7f);
441 snd_soc_write(codec, AIC32X4_MADC, data | aic32x4_divs[i].madc);
442
443 /* AOSR value */
444 snd_soc_write(codec, AIC32X4_AOSR, aic32x4_divs[i].aosr);
445
446 /* BCLK N divider */
447 data = snd_soc_read(codec, AIC32X4_BCLKN);
448 data &= ~(0x7f);
449 snd_soc_write(codec, AIC32X4_BCLKN, data | aic32x4_divs[i].blck_N);
450
451 data = snd_soc_read(codec, AIC32X4_IFACE1);
452 data = data & ~(3 << 4);
453 switch (params_width(params)) {
454 case 16:
455 break;
456 case 20:
457 data |= (AIC32X4_WORD_LEN_20BITS << AIC32X4_DOSRMSB_SHIFT);
458 break;
459 case 24:
460 data |= (AIC32X4_WORD_LEN_24BITS << AIC32X4_DOSRMSB_SHIFT);
461 break;
462 case 32:
463 data |= (AIC32X4_WORD_LEN_32BITS << AIC32X4_DOSRMSB_SHIFT);
464 break;
465 }
466 snd_soc_write(codec, AIC32X4_IFACE1, data);
467
468 if (params_channels(params) == 1) {
469 data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2LCHN;
470 } else {
471 if (aic32x4->swapdacs)
472 data = AIC32X4_RDAC2LCHN | AIC32X4_LDAC2RCHN;
473 else
474 data = AIC32X4_LDAC2LCHN | AIC32X4_RDAC2RCHN;
475 }
476 snd_soc_update_bits(codec, AIC32X4_DACSETUP, AIC32X4_DAC_CHAN_MASK,
477 data);
478
479 return 0;
480 }
481
482 static int aic32x4_mute(struct snd_soc_dai *dai, int mute)
483 {
484 struct snd_soc_codec *codec = dai->codec;
485 u8 dac_reg;
486
487 dac_reg = snd_soc_read(codec, AIC32X4_DACMUTE) & ~AIC32X4_MUTEON;
488 if (mute)
489 snd_soc_write(codec, AIC32X4_DACMUTE, dac_reg | AIC32X4_MUTEON);
490 else
491 snd_soc_write(codec, AIC32X4_DACMUTE, dac_reg);
492 return 0;
493 }
494
495 static int aic32x4_set_bias_level(struct snd_soc_codec *codec,
496 enum snd_soc_bias_level level)
497 {
498 struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
499 int ret;
500
501 switch (level) {
502 case SND_SOC_BIAS_ON:
503 /* Switch on master clock */
504 ret = clk_prepare_enable(aic32x4->mclk);
505 if (ret) {
506 dev_err(codec->dev, "Failed to enable master clock\n");
507 return ret;
508 }
509
510 /* Switch on PLL */
511 snd_soc_update_bits(codec, AIC32X4_PLLPR,
512 AIC32X4_PLLEN, AIC32X4_PLLEN);
513
514 /* Switch on NDAC Divider */
515 snd_soc_update_bits(codec, AIC32X4_NDAC,
516 AIC32X4_NDACEN, AIC32X4_NDACEN);
517
518 /* Switch on MDAC Divider */
519 snd_soc_update_bits(codec, AIC32X4_MDAC,
520 AIC32X4_MDACEN, AIC32X4_MDACEN);
521
522 /* Switch on NADC Divider */
523 snd_soc_update_bits(codec, AIC32X4_NADC,
524 AIC32X4_NADCEN, AIC32X4_NADCEN);
525
526 /* Switch on MADC Divider */
527 snd_soc_update_bits(codec, AIC32X4_MADC,
528 AIC32X4_MADCEN, AIC32X4_MADCEN);
529
530 /* Switch on BCLK_N Divider */
531 snd_soc_update_bits(codec, AIC32X4_BCLKN,
532 AIC32X4_BCLKEN, AIC32X4_BCLKEN);
533 break;
534 case SND_SOC_BIAS_PREPARE:
535 break;
536 case SND_SOC_BIAS_STANDBY:
537 /* Switch off BCLK_N Divider */
538 snd_soc_update_bits(codec, AIC32X4_BCLKN,
539 AIC32X4_BCLKEN, 0);
540
541 /* Switch off MADC Divider */
542 snd_soc_update_bits(codec, AIC32X4_MADC,
543 AIC32X4_MADCEN, 0);
544
545 /* Switch off NADC Divider */
546 snd_soc_update_bits(codec, AIC32X4_NADC,
547 AIC32X4_NADCEN, 0);
548
549 /* Switch off MDAC Divider */
550 snd_soc_update_bits(codec, AIC32X4_MDAC,
551 AIC32X4_MDACEN, 0);
552
553 /* Switch off NDAC Divider */
554 snd_soc_update_bits(codec, AIC32X4_NDAC,
555 AIC32X4_NDACEN, 0);
556
557 /* Switch off PLL */
558 snd_soc_update_bits(codec, AIC32X4_PLLPR,
559 AIC32X4_PLLEN, 0);
560
561 /* Switch off master clock */
562 clk_disable_unprepare(aic32x4->mclk);
563 break;
564 case SND_SOC_BIAS_OFF:
565 break;
566 }
567 codec->dapm.bias_level = level;
568 return 0;
569 }
570
571 #define AIC32X4_RATES SNDRV_PCM_RATE_8000_48000
572 #define AIC32X4_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
573 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
574
575 static const struct snd_soc_dai_ops aic32x4_ops = {
576 .hw_params = aic32x4_hw_params,
577 .digital_mute = aic32x4_mute,
578 .set_fmt = aic32x4_set_dai_fmt,
579 .set_sysclk = aic32x4_set_dai_sysclk,
580 };
581
582 static struct snd_soc_dai_driver aic32x4_dai = {
583 .name = "tlv320aic32x4-hifi",
584 .playback = {
585 .stream_name = "Playback",
586 .channels_min = 1,
587 .channels_max = 2,
588 .rates = AIC32X4_RATES,
589 .formats = AIC32X4_FORMATS,},
590 .capture = {
591 .stream_name = "Capture",
592 .channels_min = 1,
593 .channels_max = 2,
594 .rates = AIC32X4_RATES,
595 .formats = AIC32X4_FORMATS,},
596 .ops = &aic32x4_ops,
597 .symmetric_rates = 1,
598 };
599
600 static int aic32x4_suspend(struct snd_soc_codec *codec)
601 {
602 aic32x4_set_bias_level(codec, SND_SOC_BIAS_OFF);
603 return 0;
604 }
605
606 static int aic32x4_resume(struct snd_soc_codec *codec)
607 {
608 aic32x4_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
609 return 0;
610 }
611
612 static int aic32x4_probe(struct snd_soc_codec *codec)
613 {
614 struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
615 u32 tmp_reg;
616
617 if (gpio_is_valid(aic32x4->rstn_gpio)) {
618 ndelay(10);
619 gpio_set_value(aic32x4->rstn_gpio, 1);
620 }
621
622 snd_soc_write(codec, AIC32X4_RESET, 0x01);
623
624 /* Power platform configuration */
625 if (aic32x4->power_cfg & AIC32X4_PWR_MICBIAS_2075_LDOIN) {
626 snd_soc_write(codec, AIC32X4_MICBIAS, AIC32X4_MICBIAS_LDOIN |
627 AIC32X4_MICBIAS_2075V);
628 }
629 if (aic32x4->power_cfg & AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE)
630 snd_soc_write(codec, AIC32X4_PWRCFG, AIC32X4_AVDDWEAKDISABLE);
631
632 tmp_reg = (aic32x4->power_cfg & AIC32X4_PWR_AIC32X4_LDO_ENABLE) ?
633 AIC32X4_LDOCTLEN : 0;
634 snd_soc_write(codec, AIC32X4_LDOCTL, tmp_reg);
635
636 tmp_reg = snd_soc_read(codec, AIC32X4_CMMODE);
637 if (aic32x4->power_cfg & AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36)
638 tmp_reg |= AIC32X4_LDOIN_18_36;
639 if (aic32x4->power_cfg & AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED)
640 tmp_reg |= AIC32X4_LDOIN2HP;
641 snd_soc_write(codec, AIC32X4_CMMODE, tmp_reg);
642
643 /* Mic PGA routing */
644 if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K)
645 snd_soc_write(codec, AIC32X4_LMICPGANIN,
646 AIC32X4_LMICPGANIN_IN2R_10K);
647 else
648 snd_soc_write(codec, AIC32X4_LMICPGANIN,
649 AIC32X4_LMICPGANIN_CM1L_10K);
650 if (aic32x4->micpga_routing & AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K)
651 snd_soc_write(codec, AIC32X4_RMICPGANIN,
652 AIC32X4_RMICPGANIN_IN1L_10K);
653 else
654 snd_soc_write(codec, AIC32X4_RMICPGANIN,
655 AIC32X4_RMICPGANIN_CM1R_10K);
656
657 aic32x4_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
658
659 /*
660 * Workaround: for an unknown reason, the ADC needs to be powered up
661 * and down for the first capture to work properly. It seems related to
662 * a HW BUG or some kind of behavior not documented in the datasheet.
663 */
664 tmp_reg = snd_soc_read(codec, AIC32X4_ADCSETUP);
665 snd_soc_write(codec, AIC32X4_ADCSETUP, tmp_reg |
666 AIC32X4_LADC_EN | AIC32X4_RADC_EN);
667 snd_soc_write(codec, AIC32X4_ADCSETUP, tmp_reg);
668
669 return 0;
670 }
671
672 static int aic32x4_remove(struct snd_soc_codec *codec)
673 {
674 aic32x4_set_bias_level(codec, SND_SOC_BIAS_OFF);
675 return 0;
676 }
677
678 static struct snd_soc_codec_driver soc_codec_dev_aic32x4 = {
679 .probe = aic32x4_probe,
680 .remove = aic32x4_remove,
681 .suspend = aic32x4_suspend,
682 .resume = aic32x4_resume,
683 .set_bias_level = aic32x4_set_bias_level,
684
685 .controls = aic32x4_snd_controls,
686 .num_controls = ARRAY_SIZE(aic32x4_snd_controls),
687 .dapm_widgets = aic32x4_dapm_widgets,
688 .num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
689 .dapm_routes = aic32x4_dapm_routes,
690 .num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
691 };
692
693 static int aic32x4_parse_dt(struct aic32x4_priv *aic32x4,
694 struct device_node *np)
695 {
696 aic32x4->swapdacs = false;
697 aic32x4->micpga_routing = 0;
698 aic32x4->rstn_gpio = of_get_named_gpio(np, "reset-gpios", 0);
699
700 return 0;
701 }
702
703 static void aic32x4_disable_regulators(struct aic32x4_priv *aic32x4)
704 {
705 regulator_disable(aic32x4->supply_iov);
706
707 if (!IS_ERR(aic32x4->supply_ldo))
708 regulator_disable(aic32x4->supply_ldo);
709
710 if (!IS_ERR(aic32x4->supply_dv))
711 regulator_disable(aic32x4->supply_dv);
712
713 if (!IS_ERR(aic32x4->supply_av))
714 regulator_disable(aic32x4->supply_av);
715 }
716
717 static int aic32x4_setup_regulators(struct device *dev,
718 struct aic32x4_priv *aic32x4)
719 {
720 int ret = 0;
721
722 aic32x4->supply_ldo = devm_regulator_get_optional(dev, "ldoin");
723 aic32x4->supply_iov = devm_regulator_get(dev, "iov");
724 aic32x4->supply_dv = devm_regulator_get_optional(dev, "dv");
725 aic32x4->supply_av = devm_regulator_get_optional(dev, "av");
726
727 /* Check if the regulator requirements are fulfilled */
728
729 if (IS_ERR(aic32x4->supply_iov)) {
730 dev_err(dev, "Missing supply 'iov'\n");
731 return PTR_ERR(aic32x4->supply_iov);
732 }
733
734 if (IS_ERR(aic32x4->supply_ldo)) {
735 if (PTR_ERR(aic32x4->supply_ldo) == -EPROBE_DEFER)
736 return -EPROBE_DEFER;
737
738 if (IS_ERR(aic32x4->supply_dv)) {
739 dev_err(dev, "Missing supply 'dv' or 'ldoin'\n");
740 return PTR_ERR(aic32x4->supply_dv);
741 }
742 if (IS_ERR(aic32x4->supply_av)) {
743 dev_err(dev, "Missing supply 'av' or 'ldoin'\n");
744 return PTR_ERR(aic32x4->supply_av);
745 }
746 } else {
747 if (IS_ERR(aic32x4->supply_dv) &&
748 PTR_ERR(aic32x4->supply_dv) == -EPROBE_DEFER)
749 return -EPROBE_DEFER;
750 if (IS_ERR(aic32x4->supply_av) &&
751 PTR_ERR(aic32x4->supply_av) == -EPROBE_DEFER)
752 return -EPROBE_DEFER;
753 }
754
755 ret = regulator_enable(aic32x4->supply_iov);
756 if (ret) {
757 dev_err(dev, "Failed to enable regulator iov\n");
758 return ret;
759 }
760
761 if (!IS_ERR(aic32x4->supply_ldo)) {
762 ret = regulator_enable(aic32x4->supply_ldo);
763 if (ret) {
764 dev_err(dev, "Failed to enable regulator ldo\n");
765 goto error_ldo;
766 }
767 }
768
769 if (!IS_ERR(aic32x4->supply_dv)) {
770 ret = regulator_enable(aic32x4->supply_dv);
771 if (ret) {
772 dev_err(dev, "Failed to enable regulator dv\n");
773 goto error_dv;
774 }
775 }
776
777 if (!IS_ERR(aic32x4->supply_av)) {
778 ret = regulator_enable(aic32x4->supply_av);
779 if (ret) {
780 dev_err(dev, "Failed to enable regulator av\n");
781 goto error_av;
782 }
783 }
784
785 if (!IS_ERR(aic32x4->supply_ldo) && IS_ERR(aic32x4->supply_av))
786 aic32x4->power_cfg |= AIC32X4_PWR_AIC32X4_LDO_ENABLE;
787
788 return 0;
789
790 error_av:
791 if (!IS_ERR(aic32x4->supply_dv))
792 regulator_disable(aic32x4->supply_dv);
793
794 error_dv:
795 if (!IS_ERR(aic32x4->supply_ldo))
796 regulator_disable(aic32x4->supply_ldo);
797
798 error_ldo:
799 regulator_disable(aic32x4->supply_iov);
800 return ret;
801 }
802
803 static int aic32x4_i2c_probe(struct i2c_client *i2c,
804 const struct i2c_device_id *id)
805 {
806 struct aic32x4_pdata *pdata = i2c->dev.platform_data;
807 struct aic32x4_priv *aic32x4;
808 struct device_node *np = i2c->dev.of_node;
809 int ret;
810
811 aic32x4 = devm_kzalloc(&i2c->dev, sizeof(struct aic32x4_priv),
812 GFP_KERNEL);
813 if (aic32x4 == NULL)
814 return -ENOMEM;
815
816 aic32x4->regmap = devm_regmap_init_i2c(i2c, &aic32x4_regmap);
817 if (IS_ERR(aic32x4->regmap))
818 return PTR_ERR(aic32x4->regmap);
819
820 i2c_set_clientdata(i2c, aic32x4);
821
822 if (pdata) {
823 aic32x4->power_cfg = pdata->power_cfg;
824 aic32x4->swapdacs = pdata->swapdacs;
825 aic32x4->micpga_routing = pdata->micpga_routing;
826 aic32x4->rstn_gpio = pdata->rstn_gpio;
827 } else if (np) {
828 ret = aic32x4_parse_dt(aic32x4, np);
829 if (ret) {
830 dev_err(&i2c->dev, "Failed to parse DT node\n");
831 return ret;
832 }
833 } else {
834 aic32x4->power_cfg = 0;
835 aic32x4->swapdacs = false;
836 aic32x4->micpga_routing = 0;
837 aic32x4->rstn_gpio = -1;
838 }
839
840 aic32x4->mclk = devm_clk_get(&i2c->dev, "mclk");
841 if (IS_ERR(aic32x4->mclk)) {
842 dev_err(&i2c->dev, "Failed getting the mclk. The current implementation does not support the usage of this codec without mclk\n");
843 return PTR_ERR(aic32x4->mclk);
844 }
845
846 if (gpio_is_valid(aic32x4->rstn_gpio)) {
847 ret = devm_gpio_request_one(&i2c->dev, aic32x4->rstn_gpio,
848 GPIOF_OUT_INIT_LOW, "tlv320aic32x4 rstn");
849 if (ret != 0)
850 return ret;
851 }
852
853 ret = aic32x4_setup_regulators(&i2c->dev, aic32x4);
854 if (ret) {
855 dev_err(&i2c->dev, "Failed to setup regulators\n");
856 return ret;
857 }
858
859 ret = snd_soc_register_codec(&i2c->dev,
860 &soc_codec_dev_aic32x4, &aic32x4_dai, 1);
861 if (ret) {
862 dev_err(&i2c->dev, "Failed to register codec\n");
863 aic32x4_disable_regulators(aic32x4);
864 return ret;
865 }
866
867 i2c_set_clientdata(i2c, aic32x4);
868
869 return 0;
870 }
871
872 static int aic32x4_i2c_remove(struct i2c_client *client)
873 {
874 struct aic32x4_priv *aic32x4 = i2c_get_clientdata(client);
875
876 aic32x4_disable_regulators(aic32x4);
877
878 snd_soc_unregister_codec(&client->dev);
879 return 0;
880 }
881
882 static const struct i2c_device_id aic32x4_i2c_id[] = {
883 { "tlv320aic32x4", 0 },
884 { }
885 };
886 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
887
888 static const struct of_device_id aic32x4_of_id[] = {
889 { .compatible = "ti,tlv320aic32x4", },
890 { /* senitel */ }
891 };
892 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
893
894 static struct i2c_driver aic32x4_i2c_driver = {
895 .driver = {
896 .name = "tlv320aic32x4",
897 .owner = THIS_MODULE,
898 .of_match_table = aic32x4_of_id,
899 },
900 .probe = aic32x4_i2c_probe,
901 .remove = aic32x4_i2c_remove,
902 .id_table = aic32x4_i2c_id,
903 };
904
905 module_i2c_driver(aic32x4_i2c_driver);
906
907 MODULE_DESCRIPTION("ASoC tlv320aic32x4 codec driver");
908 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
909 MODULE_LICENSE("GPL");
Linux with added FPC-III support