1 // SPDX-License-Identifier: GPL-2.0-only
3 * PCM3168A codec driver
5 * Copyright (C) 2015 Imagination Technologies Ltd.
7 * Author: Damien Horsley <Damien.Horsley@imgtec.com>
10 #include <linux/clk.h>
11 #include <linux/delay.h>
12 #include <linux/module.h>
13 #include <linux/pm_runtime.h>
14 #include <linux/regulator/consumer.h>
16 #include <sound/pcm_params.h>
17 #include <sound/soc.h>
18 #include <sound/tlv.h>
22 #define PCM3168A_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
23 SNDRV_PCM_FMTBIT_S24_3LE | \
24 SNDRV_PCM_FMTBIT_S24_LE | \
25 SNDRV_PCM_FMTBIT_S32_LE)
27 #define PCM3168A_FMT_I2S 0x0
28 #define PCM3168A_FMT_LEFT_J 0x1
29 #define PCM3168A_FMT_RIGHT_J 0x2
30 #define PCM3168A_FMT_RIGHT_J_16 0x3
31 #define PCM3168A_FMT_DSP_A 0x4
32 #define PCM3168A_FMT_DSP_B 0x5
33 #define PCM3168A_FMT_I2S_TDM 0x6
34 #define PCM3168A_FMT_LEFT_J_TDM 0x7
35 #define PCM3168A_FMT_DSP_MASK 0x4
37 #define PCM3168A_NUM_SUPPLIES 6
38 static const char *const pcm3168a_supply_names[PCM3168A_NUM_SUPPLIES] = {
47 struct pcm3168a_priv {
48 struct regulator_bulk_data supplies[PCM3168A_NUM_SUPPLIES];
49 struct regmap *regmap;
61 static const char *const pcm3168a_roll_off[] = { "Sharp", "Slow" };
63 static SOC_ENUM_SINGLE_DECL(pcm3168a_d1_roll_off, PCM3168A_DAC_OP_FLT,
64 PCM3168A_DAC_FLT_SHIFT, pcm3168a_roll_off);
65 static SOC_ENUM_SINGLE_DECL(pcm3168a_d2_roll_off, PCM3168A_DAC_OP_FLT,
66 PCM3168A_DAC_FLT_SHIFT + 1, pcm3168a_roll_off);
67 static SOC_ENUM_SINGLE_DECL(pcm3168a_d3_roll_off, PCM3168A_DAC_OP_FLT,
68 PCM3168A_DAC_FLT_SHIFT + 2, pcm3168a_roll_off);
69 static SOC_ENUM_SINGLE_DECL(pcm3168a_d4_roll_off, PCM3168A_DAC_OP_FLT,
70 PCM3168A_DAC_FLT_SHIFT + 3, pcm3168a_roll_off);
72 static const char *const pcm3168a_volume_type[] = {
73 "Individual", "Master + Individual" };
75 static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_volume_type, PCM3168A_DAC_ATT_DEMP_ZF,
76 PCM3168A_DAC_ATMDDA_SHIFT, pcm3168a_volume_type);
78 static const char *const pcm3168a_att_speed_mult[] = { "2048", "4096" };
80 static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_att_mult, PCM3168A_DAC_ATT_DEMP_ZF,
81 PCM3168A_DAC_ATSPDA_SHIFT, pcm3168a_att_speed_mult);
83 static const char *const pcm3168a_demp[] = {
84 "Disabled", "48khz", "44.1khz", "32khz" };
86 static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_demp, PCM3168A_DAC_ATT_DEMP_ZF,
87 PCM3168A_DAC_DEMP_SHIFT, pcm3168a_demp);
89 static const char *const pcm3168a_zf_func[] = {
90 "DAC 1/2/3/4 AND", "DAC 1/2/3/4 OR", "DAC 1/2/3 AND",
91 "DAC 1/2/3 OR", "DAC 4 AND", "DAC 4 OR" };
93 static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_zf_func, PCM3168A_DAC_ATT_DEMP_ZF,
94 PCM3168A_DAC_AZRO_SHIFT, pcm3168a_zf_func);
96 static const char *const pcm3168a_pol[] = { "Active High", "Active Low" };
98 static SOC_ENUM_SINGLE_DECL(pcm3168a_dac_zf_pol, PCM3168A_DAC_ATT_DEMP_ZF,
99 PCM3168A_DAC_ATSPDA_SHIFT, pcm3168a_pol);
101 static const char *const pcm3168a_con[] = { "Differential", "Single-Ended" };
103 static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc1_con, PCM3168A_ADC_SEAD,
105 static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc2_con, PCM3168A_ADC_SEAD,
107 static SOC_ENUM_DOUBLE_DECL(pcm3168a_adc3_con, PCM3168A_ADC_SEAD,
110 static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_volume_type, PCM3168A_ADC_ATT_OVF,
111 PCM3168A_ADC_ATMDAD_SHIFT, pcm3168a_volume_type);
113 static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_att_mult, PCM3168A_ADC_ATT_OVF,
114 PCM3168A_ADC_ATSPAD_SHIFT, pcm3168a_att_speed_mult);
116 static SOC_ENUM_SINGLE_DECL(pcm3168a_adc_ov_pol, PCM3168A_ADC_ATT_OVF,
117 PCM3168A_ADC_OVFP_SHIFT, pcm3168a_pol);
119 /* -100db to 0db, register values 0-54 cause mute */
120 static const DECLARE_TLV_DB_SCALE(pcm3168a_dac_tlv, -10050, 50, 1);
122 /* -100db to 20db, register values 0-14 cause mute */
123 static const DECLARE_TLV_DB_SCALE(pcm3168a_adc_tlv, -10050, 50, 1);
125 static const struct snd_kcontrol_new pcm3168a_snd_controls[] = {
126 SOC_SINGLE("DAC Power-Save Switch", PCM3168A_DAC_PWR_MST_FMT,
127 PCM3168A_DAC_PSMDA_SHIFT, 1, 1),
128 SOC_ENUM("DAC1 Digital Filter roll-off", pcm3168a_d1_roll_off),
129 SOC_ENUM("DAC2 Digital Filter roll-off", pcm3168a_d2_roll_off),
130 SOC_ENUM("DAC3 Digital Filter roll-off", pcm3168a_d3_roll_off),
131 SOC_ENUM("DAC4 Digital Filter roll-off", pcm3168a_d4_roll_off),
132 SOC_DOUBLE("DAC1 Invert Switch", PCM3168A_DAC_INV, 0, 1, 1, 0),
133 SOC_DOUBLE("DAC2 Invert Switch", PCM3168A_DAC_INV, 2, 3, 1, 0),
134 SOC_DOUBLE("DAC3 Invert Switch", PCM3168A_DAC_INV, 4, 5, 1, 0),
135 SOC_DOUBLE("DAC4 Invert Switch", PCM3168A_DAC_INV, 6, 7, 1, 0),
136 SOC_ENUM("DAC Volume Control Type", pcm3168a_dac_volume_type),
137 SOC_ENUM("DAC Volume Rate Multiplier", pcm3168a_dac_att_mult),
138 SOC_ENUM("DAC De-Emphasis", pcm3168a_dac_demp),
139 SOC_ENUM("DAC Zero Flag Function", pcm3168a_dac_zf_func),
140 SOC_ENUM("DAC Zero Flag Polarity", pcm3168a_dac_zf_pol),
141 SOC_SINGLE_RANGE_TLV("Master Playback Volume",
142 PCM3168A_DAC_VOL_MASTER, 0, 54, 255, 0,
144 SOC_DOUBLE_R_RANGE_TLV("DAC1 Playback Volume",
145 PCM3168A_DAC_VOL_CHAN_START,
146 PCM3168A_DAC_VOL_CHAN_START + 1,
147 0, 54, 255, 0, pcm3168a_dac_tlv),
148 SOC_DOUBLE_R_RANGE_TLV("DAC2 Playback Volume",
149 PCM3168A_DAC_VOL_CHAN_START + 2,
150 PCM3168A_DAC_VOL_CHAN_START + 3,
151 0, 54, 255, 0, pcm3168a_dac_tlv),
152 SOC_DOUBLE_R_RANGE_TLV("DAC3 Playback Volume",
153 PCM3168A_DAC_VOL_CHAN_START + 4,
154 PCM3168A_DAC_VOL_CHAN_START + 5,
155 0, 54, 255, 0, pcm3168a_dac_tlv),
156 SOC_DOUBLE_R_RANGE_TLV("DAC4 Playback Volume",
157 PCM3168A_DAC_VOL_CHAN_START + 6,
158 PCM3168A_DAC_VOL_CHAN_START + 7,
159 0, 54, 255, 0, pcm3168a_dac_tlv),
160 SOC_SINGLE("ADC1 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB,
161 PCM3168A_ADC_BYP_SHIFT, 1, 1),
162 SOC_SINGLE("ADC2 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB,
163 PCM3168A_ADC_BYP_SHIFT + 1, 1, 1),
164 SOC_SINGLE("ADC3 High-Pass Filter Switch", PCM3168A_ADC_PWR_HPFB,
165 PCM3168A_ADC_BYP_SHIFT + 2, 1, 1),
166 SOC_ENUM("ADC1 Connection Type", pcm3168a_adc1_con),
167 SOC_ENUM("ADC2 Connection Type", pcm3168a_adc2_con),
168 SOC_ENUM("ADC3 Connection Type", pcm3168a_adc3_con),
169 SOC_DOUBLE("ADC1 Invert Switch", PCM3168A_ADC_INV, 0, 1, 1, 0),
170 SOC_DOUBLE("ADC2 Invert Switch", PCM3168A_ADC_INV, 2, 3, 1, 0),
171 SOC_DOUBLE("ADC3 Invert Switch", PCM3168A_ADC_INV, 4, 5, 1, 0),
172 SOC_DOUBLE("ADC1 Mute Switch", PCM3168A_ADC_MUTE, 0, 1, 1, 0),
173 SOC_DOUBLE("ADC2 Mute Switch", PCM3168A_ADC_MUTE, 2, 3, 1, 0),
174 SOC_DOUBLE("ADC3 Mute Switch", PCM3168A_ADC_MUTE, 4, 5, 1, 0),
175 SOC_ENUM("ADC Volume Control Type", pcm3168a_adc_volume_type),
176 SOC_ENUM("ADC Volume Rate Multiplier", pcm3168a_adc_att_mult),
177 SOC_ENUM("ADC Overflow Flag Polarity", pcm3168a_adc_ov_pol),
178 SOC_SINGLE_RANGE_TLV("Master Capture Volume",
179 PCM3168A_ADC_VOL_MASTER, 0, 14, 255, 0,
181 SOC_DOUBLE_R_RANGE_TLV("ADC1 Capture Volume",
182 PCM3168A_ADC_VOL_CHAN_START,
183 PCM3168A_ADC_VOL_CHAN_START + 1,
184 0, 14, 255, 0, pcm3168a_adc_tlv),
185 SOC_DOUBLE_R_RANGE_TLV("ADC2 Capture Volume",
186 PCM3168A_ADC_VOL_CHAN_START + 2,
187 PCM3168A_ADC_VOL_CHAN_START + 3,
188 0, 14, 255, 0, pcm3168a_adc_tlv),
189 SOC_DOUBLE_R_RANGE_TLV("ADC3 Capture Volume",
190 PCM3168A_ADC_VOL_CHAN_START + 4,
191 PCM3168A_ADC_VOL_CHAN_START + 5,
192 0, 14, 255, 0, pcm3168a_adc_tlv)
195 static const struct snd_soc_dapm_widget pcm3168a_dapm_widgets[] = {
196 SND_SOC_DAPM_DAC("DAC1", "Playback", PCM3168A_DAC_OP_FLT,
197 PCM3168A_DAC_OPEDA_SHIFT, 1),
198 SND_SOC_DAPM_DAC("DAC2", "Playback", PCM3168A_DAC_OP_FLT,
199 PCM3168A_DAC_OPEDA_SHIFT + 1, 1),
200 SND_SOC_DAPM_DAC("DAC3", "Playback", PCM3168A_DAC_OP_FLT,
201 PCM3168A_DAC_OPEDA_SHIFT + 2, 1),
202 SND_SOC_DAPM_DAC("DAC4", "Playback", PCM3168A_DAC_OP_FLT,
203 PCM3168A_DAC_OPEDA_SHIFT + 3, 1),
205 SND_SOC_DAPM_OUTPUT("AOUT1L"),
206 SND_SOC_DAPM_OUTPUT("AOUT1R"),
207 SND_SOC_DAPM_OUTPUT("AOUT2L"),
208 SND_SOC_DAPM_OUTPUT("AOUT2R"),
209 SND_SOC_DAPM_OUTPUT("AOUT3L"),
210 SND_SOC_DAPM_OUTPUT("AOUT3R"),
211 SND_SOC_DAPM_OUTPUT("AOUT4L"),
212 SND_SOC_DAPM_OUTPUT("AOUT4R"),
214 SND_SOC_DAPM_ADC("ADC1", "Capture", PCM3168A_ADC_PWR_HPFB,
215 PCM3168A_ADC_PSVAD_SHIFT, 1),
216 SND_SOC_DAPM_ADC("ADC2", "Capture", PCM3168A_ADC_PWR_HPFB,
217 PCM3168A_ADC_PSVAD_SHIFT + 1, 1),
218 SND_SOC_DAPM_ADC("ADC3", "Capture", PCM3168A_ADC_PWR_HPFB,
219 PCM3168A_ADC_PSVAD_SHIFT + 2, 1),
221 SND_SOC_DAPM_INPUT("AIN1L"),
222 SND_SOC_DAPM_INPUT("AIN1R"),
223 SND_SOC_DAPM_INPUT("AIN2L"),
224 SND_SOC_DAPM_INPUT("AIN2R"),
225 SND_SOC_DAPM_INPUT("AIN3L"),
226 SND_SOC_DAPM_INPUT("AIN3R")
229 static const struct snd_soc_dapm_route pcm3168a_dapm_routes[] = {
231 { "AOUT1L", NULL, "DAC1" },
232 { "AOUT1R", NULL, "DAC1" },
234 { "AOUT2L", NULL, "DAC2" },
235 { "AOUT2R", NULL, "DAC2" },
237 { "AOUT3L", NULL, "DAC3" },
238 { "AOUT3R", NULL, "DAC3" },
240 { "AOUT4L", NULL, "DAC4" },
241 { "AOUT4R", NULL, "DAC4" },
244 { "ADC1", NULL, "AIN1L" },
245 { "ADC1", NULL, "AIN1R" },
247 { "ADC2", NULL, "AIN2L" },
248 { "ADC2", NULL, "AIN2R" },
250 { "ADC3", NULL, "AIN3L" },
251 { "ADC3", NULL, "AIN3R" }
254 static unsigned int pcm3168a_scki_ratios[] = {
263 #define PCM3168A_NUM_SCKI_RATIOS_DAC ARRAY_SIZE(pcm3168a_scki_ratios)
264 #define PCM3168A_NUM_SCKI_RATIOS_ADC (ARRAY_SIZE(pcm3168a_scki_ratios) - 2)
266 #define PCM1368A_MAX_SYSCLK 36864000
268 static int pcm3168a_reset(struct pcm3168a_priv *pcm3168a)
272 ret = regmap_write(pcm3168a->regmap, PCM3168A_RST_SMODE, 0);
276 /* Internal reset is de-asserted after 3846 SCKI cycles */
277 msleep(DIV_ROUND_UP(3846 * 1000, pcm3168a->sysclk));
279 return regmap_write(pcm3168a->regmap, PCM3168A_RST_SMODE,
280 PCM3168A_MRST_MASK | PCM3168A_SRST_MASK);
283 static int pcm3168a_digital_mute(struct snd_soc_dai *dai, int mute)
285 struct snd_soc_component *component = dai->component;
286 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
288 regmap_write(pcm3168a->regmap, PCM3168A_DAC_MUTE, mute ? 0xff : 0);
293 static int pcm3168a_set_dai_sysclk(struct snd_soc_dai *dai,
294 int clk_id, unsigned int freq, int dir)
296 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(dai->component);
299 if (freq > PCM1368A_MAX_SYSCLK)
302 ret = clk_set_rate(pcm3168a->scki, freq);
306 pcm3168a->sysclk = freq;
311 static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
312 unsigned int format, bool dac)
314 struct snd_soc_component *component = dai->component;
315 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
316 u32 fmt, reg, mask, shift;
319 switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
320 case SND_SOC_DAIFMT_LEFT_J:
321 fmt = PCM3168A_FMT_LEFT_J;
323 case SND_SOC_DAIFMT_I2S:
324 fmt = PCM3168A_FMT_I2S;
326 case SND_SOC_DAIFMT_RIGHT_J:
327 fmt = PCM3168A_FMT_RIGHT_J;
329 case SND_SOC_DAIFMT_DSP_A:
330 fmt = PCM3168A_FMT_DSP_A;
332 case SND_SOC_DAIFMT_DSP_B:
333 fmt = PCM3168A_FMT_DSP_B;
336 dev_err(component->dev, "unsupported dai format\n");
340 switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
341 case SND_SOC_DAIFMT_CBS_CFS:
344 case SND_SOC_DAIFMT_CBM_CFM:
348 dev_err(component->dev, "unsupported master/slave mode\n");
352 switch (format & SND_SOC_DAIFMT_INV_MASK) {
353 case SND_SOC_DAIFMT_NB_NF:
360 reg = PCM3168A_DAC_PWR_MST_FMT;
361 mask = PCM3168A_DAC_FMT_MASK;
362 shift = PCM3168A_DAC_FMT_SHIFT;
363 pcm3168a->dac_master_mode = master_mode;
364 pcm3168a->dac_fmt = fmt;
366 reg = PCM3168A_ADC_MST_FMT;
367 mask = PCM3168A_ADC_FMTAD_MASK;
368 shift = PCM3168A_ADC_FMTAD_SHIFT;
369 pcm3168a->adc_master_mode = master_mode;
370 pcm3168a->adc_fmt = fmt;
373 regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift);
378 static int pcm3168a_set_dai_fmt_dac(struct snd_soc_dai *dai,
381 return pcm3168a_set_dai_fmt(dai, format, true);
384 static int pcm3168a_set_dai_fmt_adc(struct snd_soc_dai *dai,
387 return pcm3168a_set_dai_fmt(dai, format, false);
390 static int pcm3168a_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
391 unsigned int rx_mask, int slots,
394 struct snd_soc_component *component = dai->component;
395 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
397 if (tx_mask >= (1<<slots) || rx_mask >= (1<<slots)) {
398 dev_err(component->dev,
399 "Bad tdm mask tx: 0x%08x rx: 0x%08x slots %d\n",
400 tx_mask, rx_mask, slots);
405 (slot_width != 16 && slot_width != 24 && slot_width != 32 )) {
406 dev_err(component->dev, "Unsupported slot_width %d\n",
411 if (pcm3168a->tdm_slots && pcm3168a->tdm_slots != slots) {
412 dev_err(component->dev, "Not matching slots %d vs %d\n",
413 pcm3168a->tdm_slots, slots);
417 if (pcm3168a->slot_width && pcm3168a->slot_width != slot_width) {
418 dev_err(component->dev, "Not matching slot_width %d vs %d\n",
419 pcm3168a->slot_width, slot_width);
423 pcm3168a->tdm_slots = slots;
424 pcm3168a->slot_width = slot_width;
425 pcm3168a->tdm_mask[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
426 pcm3168a->tdm_mask[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
431 static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
432 struct snd_pcm_hw_params *params,
433 struct snd_soc_dai *dai)
435 struct snd_soc_component *component = dai->component;
436 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
437 bool tx, master_mode;
438 u32 val, mask, shift, reg;
439 unsigned int rate, fmt, ratio, max_ratio;
440 unsigned int tdm_slots;
443 rate = params_rate(params);
445 ratio = pcm3168a->sysclk / rate;
447 tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
449 max_ratio = PCM3168A_NUM_SCKI_RATIOS_DAC;
450 reg = PCM3168A_DAC_PWR_MST_FMT;
451 mask = PCM3168A_DAC_MSDA_MASK;
452 shift = PCM3168A_DAC_MSDA_SHIFT;
453 master_mode = pcm3168a->dac_master_mode;
454 fmt = pcm3168a->dac_fmt;
456 max_ratio = PCM3168A_NUM_SCKI_RATIOS_ADC;
457 reg = PCM3168A_ADC_MST_FMT;
458 mask = PCM3168A_ADC_MSAD_MASK;
459 shift = PCM3168A_ADC_MSAD_SHIFT;
460 master_mode = pcm3168a->adc_master_mode;
461 fmt = pcm3168a->adc_fmt;
464 for (i = 0; i < max_ratio; i++) {
465 if (pcm3168a_scki_ratios[i] == ratio)
469 if (i == max_ratio) {
470 dev_err(component->dev, "unsupported sysclk ratio\n");
474 if (pcm3168a->slot_width)
475 slot_width = pcm3168a->slot_width;
477 slot_width = params_width(params);
479 switch (slot_width) {
481 if (master_mode || (fmt != PCM3168A_FMT_RIGHT_J)) {
482 dev_err(component->dev, "16-bit slots are supported only for slave mode using right justified\n");
485 fmt = PCM3168A_FMT_RIGHT_J_16;
488 if (master_mode || (fmt & PCM3168A_FMT_DSP_MASK)) {
489 dev_err(component->dev, "24-bit slots not supported in master mode, or slave mode using DSP\n");
496 dev_err(component->dev, "unsupported frame size: %d\n", slot_width);
500 if (pcm3168a->tdm_slots)
501 tdm_slots = pcm3168a->tdm_slots;
503 tdm_slots = params_channels(params);
506 * Switch the codec to TDM mode when more than 2 TDM slots are needed
508 * If pcm3168a->tdm_slots is not set or set to more than 2 (8/6 usually)
509 * then DIN1/DOUT1 is used in TDM mode.
510 * If pcm3168a->tdm_slots is set to 2 then DIN1/2/3/4 and DOUT1/2/3 is
511 * used in normal mode, no need to switch to TDM modes.
515 case PCM3168A_FMT_I2S:
516 case PCM3168A_FMT_DSP_A:
517 fmt = PCM3168A_FMT_I2S_TDM;
519 case PCM3168A_FMT_LEFT_J:
520 case PCM3168A_FMT_DSP_B:
521 fmt = PCM3168A_FMT_LEFT_J_TDM;
524 dev_err(component->dev,
525 "TDM is supported under DSP/I2S/Left_J only\n");
531 val = ((i + 1) << shift);
535 regmap_update_bits(pcm3168a->regmap, reg, mask, val);
538 mask = PCM3168A_DAC_FMT_MASK;
539 shift = PCM3168A_DAC_FMT_SHIFT;
541 mask = PCM3168A_ADC_FMTAD_MASK;
542 shift = PCM3168A_ADC_FMTAD_SHIFT;
545 regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift);
550 static int pcm3168a_startup(struct snd_pcm_substream *substream,
551 struct snd_soc_dai *dai)
553 struct snd_soc_component *component = dai->component;
554 struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
555 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
557 unsigned int sample_min;
558 unsigned int channel_max;
559 unsigned int channel_maxs[] = {
565 fmt = pcm3168a->dac_fmt;
567 fmt = pcm3168a->adc_fmt;
570 * Available Data Bits
582 case PCM3168A_FMT_RIGHT_J:
586 case PCM3168A_FMT_LEFT_J:
587 case PCM3168A_FMT_I2S:
588 case PCM3168A_FMT_DSP_A:
589 case PCM3168A_FMT_DSP_B:
591 channel_max = channel_maxs[tx];
598 snd_pcm_hw_constraint_minmax(substream->runtime,
599 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
602 snd_pcm_hw_constraint_minmax(substream->runtime,
603 SNDRV_PCM_HW_PARAM_CHANNELS,
608 static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = {
609 .startup = pcm3168a_startup,
610 .set_fmt = pcm3168a_set_dai_fmt_dac,
611 .set_sysclk = pcm3168a_set_dai_sysclk,
612 .hw_params = pcm3168a_hw_params,
613 .digital_mute = pcm3168a_digital_mute,
614 .set_tdm_slot = pcm3168a_set_tdm_slot,
617 static const struct snd_soc_dai_ops pcm3168a_adc_dai_ops = {
618 .startup = pcm3168a_startup,
619 .set_fmt = pcm3168a_set_dai_fmt_adc,
620 .set_sysclk = pcm3168a_set_dai_sysclk,
621 .hw_params = pcm3168a_hw_params,
622 .set_tdm_slot = pcm3168a_set_tdm_slot,
625 static struct snd_soc_dai_driver pcm3168a_dais[] = {
627 .name = "pcm3168a-dac",
629 .stream_name = "Playback",
632 .rates = SNDRV_PCM_RATE_8000_192000,
633 .formats = PCM3168A_FORMATS
635 .ops = &pcm3168a_dac_dai_ops
638 .name = "pcm3168a-adc",
640 .stream_name = "Capture",
643 .rates = SNDRV_PCM_RATE_8000_96000,
644 .formats = PCM3168A_FORMATS
646 .ops = &pcm3168a_adc_dai_ops
650 static const struct reg_default pcm3168a_reg_default[] = {
651 { PCM3168A_RST_SMODE, PCM3168A_MRST_MASK | PCM3168A_SRST_MASK },
652 { PCM3168A_DAC_PWR_MST_FMT, 0x00 },
653 { PCM3168A_DAC_OP_FLT, 0x00 },
654 { PCM3168A_DAC_INV, 0x00 },
655 { PCM3168A_DAC_MUTE, 0x00 },
656 { PCM3168A_DAC_ZERO, 0x00 },
657 { PCM3168A_DAC_ATT_DEMP_ZF, 0x00 },
658 { PCM3168A_DAC_VOL_MASTER, 0xff },
659 { PCM3168A_DAC_VOL_CHAN_START, 0xff },
660 { PCM3168A_DAC_VOL_CHAN_START + 1, 0xff },
661 { PCM3168A_DAC_VOL_CHAN_START + 2, 0xff },
662 { PCM3168A_DAC_VOL_CHAN_START + 3, 0xff },
663 { PCM3168A_DAC_VOL_CHAN_START + 4, 0xff },
664 { PCM3168A_DAC_VOL_CHAN_START + 5, 0xff },
665 { PCM3168A_DAC_VOL_CHAN_START + 6, 0xff },
666 { PCM3168A_DAC_VOL_CHAN_START + 7, 0xff },
667 { PCM3168A_ADC_SMODE, 0x00 },
668 { PCM3168A_ADC_MST_FMT, 0x00 },
669 { PCM3168A_ADC_PWR_HPFB, 0x00 },
670 { PCM3168A_ADC_SEAD, 0x00 },
671 { PCM3168A_ADC_INV, 0x00 },
672 { PCM3168A_ADC_MUTE, 0x00 },
673 { PCM3168A_ADC_OV, 0x00 },
674 { PCM3168A_ADC_ATT_OVF, 0x00 },
675 { PCM3168A_ADC_VOL_MASTER, 0xd3 },
676 { PCM3168A_ADC_VOL_CHAN_START, 0xd3 },
677 { PCM3168A_ADC_VOL_CHAN_START + 1, 0xd3 },
678 { PCM3168A_ADC_VOL_CHAN_START + 2, 0xd3 },
679 { PCM3168A_ADC_VOL_CHAN_START + 3, 0xd3 },
680 { PCM3168A_ADC_VOL_CHAN_START + 4, 0xd3 },
681 { PCM3168A_ADC_VOL_CHAN_START + 5, 0xd3 }
684 static bool pcm3168a_readable_register(struct device *dev, unsigned int reg)
686 if (reg >= PCM3168A_RST_SMODE)
692 static bool pcm3168a_volatile_register(struct device *dev, unsigned int reg)
695 case PCM3168A_DAC_ZERO:
696 case PCM3168A_ADC_OV:
703 static bool pcm3168a_writeable_register(struct device *dev, unsigned int reg)
705 if (reg < PCM3168A_RST_SMODE)
709 case PCM3168A_DAC_ZERO:
710 case PCM3168A_ADC_OV:
717 const struct regmap_config pcm3168a_regmap = {
721 .max_register = PCM3168A_ADC_VOL_CHAN_START + 5,
722 .reg_defaults = pcm3168a_reg_default,
723 .num_reg_defaults = ARRAY_SIZE(pcm3168a_reg_default),
724 .readable_reg = pcm3168a_readable_register,
725 .volatile_reg = pcm3168a_volatile_register,
726 .writeable_reg = pcm3168a_writeable_register,
727 .cache_type = REGCACHE_FLAT
729 EXPORT_SYMBOL_GPL(pcm3168a_regmap);
731 static const struct snd_soc_component_driver pcm3168a_driver = {
732 .controls = pcm3168a_snd_controls,
733 .num_controls = ARRAY_SIZE(pcm3168a_snd_controls),
734 .dapm_widgets = pcm3168a_dapm_widgets,
735 .num_dapm_widgets = ARRAY_SIZE(pcm3168a_dapm_widgets),
736 .dapm_routes = pcm3168a_dapm_routes,
737 .num_dapm_routes = ARRAY_SIZE(pcm3168a_dapm_routes),
738 .use_pmdown_time = 1,
740 .non_legacy_dai_naming = 1,
743 int pcm3168a_probe(struct device *dev, struct regmap *regmap)
745 struct pcm3168a_priv *pcm3168a;
748 pcm3168a = devm_kzalloc(dev, sizeof(*pcm3168a), GFP_KERNEL);
749 if (pcm3168a == NULL)
752 dev_set_drvdata(dev, pcm3168a);
754 pcm3168a->scki = devm_clk_get(dev, "scki");
755 if (IS_ERR(pcm3168a->scki)) {
756 ret = PTR_ERR(pcm3168a->scki);
757 if (ret != -EPROBE_DEFER)
758 dev_err(dev, "failed to acquire clock 'scki': %d\n", ret);
762 ret = clk_prepare_enable(pcm3168a->scki);
764 dev_err(dev, "Failed to enable mclk: %d\n", ret);
768 pcm3168a->sysclk = clk_get_rate(pcm3168a->scki);
770 for (i = 0; i < ARRAY_SIZE(pcm3168a->supplies); i++)
771 pcm3168a->supplies[i].supply = pcm3168a_supply_names[i];
773 ret = devm_regulator_bulk_get(dev,
774 ARRAY_SIZE(pcm3168a->supplies), pcm3168a->supplies);
776 if (ret != -EPROBE_DEFER)
777 dev_err(dev, "failed to request supplies: %d\n", ret);
781 ret = regulator_bulk_enable(ARRAY_SIZE(pcm3168a->supplies),
784 dev_err(dev, "failed to enable supplies: %d\n", ret);
788 pcm3168a->regmap = regmap;
789 if (IS_ERR(pcm3168a->regmap)) {
790 ret = PTR_ERR(pcm3168a->regmap);
791 dev_err(dev, "failed to allocate regmap: %d\n", ret);
795 ret = pcm3168a_reset(pcm3168a);
797 dev_err(dev, "Failed to reset device: %d\n", ret);
801 pm_runtime_set_active(dev);
802 pm_runtime_enable(dev);
803 pm_runtime_idle(dev);
805 ret = devm_snd_soc_register_component(dev, &pcm3168a_driver, pcm3168a_dais,
806 ARRAY_SIZE(pcm3168a_dais));
808 dev_err(dev, "failed to register component: %d\n", ret);
815 regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies),
818 clk_disable_unprepare(pcm3168a->scki);
822 EXPORT_SYMBOL_GPL(pcm3168a_probe);
824 static void pcm3168a_disable(struct device *dev)
826 struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev);
828 regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies),
830 clk_disable_unprepare(pcm3168a->scki);
833 void pcm3168a_remove(struct device *dev)
835 pm_runtime_disable(dev);
837 pcm3168a_disable(dev);
840 EXPORT_SYMBOL_GPL(pcm3168a_remove);
843 static int pcm3168a_rt_resume(struct device *dev)
845 struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev);
848 ret = clk_prepare_enable(pcm3168a->scki);
850 dev_err(dev, "Failed to enable mclk: %d\n", ret);
854 ret = regulator_bulk_enable(ARRAY_SIZE(pcm3168a->supplies),
857 dev_err(dev, "Failed to enable supplies: %d\n", ret);
861 ret = pcm3168a_reset(pcm3168a);
863 dev_err(dev, "Failed to reset device: %d\n", ret);
867 regcache_cache_only(pcm3168a->regmap, false);
869 regcache_mark_dirty(pcm3168a->regmap);
871 ret = regcache_sync(pcm3168a->regmap);
873 dev_err(dev, "Failed to sync regmap: %d\n", ret);
880 regulator_bulk_disable(ARRAY_SIZE(pcm3168a->supplies),
883 clk_disable_unprepare(pcm3168a->scki);
888 static int pcm3168a_rt_suspend(struct device *dev)
890 struct pcm3168a_priv *pcm3168a = dev_get_drvdata(dev);
892 regcache_cache_only(pcm3168a->regmap, true);
894 pcm3168a_disable(dev);
900 const struct dev_pm_ops pcm3168a_pm_ops = {
901 SET_RUNTIME_PM_OPS(pcm3168a_rt_suspend, pcm3168a_rt_resume, NULL)
903 EXPORT_SYMBOL_GPL(pcm3168a_pm_ops);
905 MODULE_DESCRIPTION("PCM3168A codec driver");
906 MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
907 MODULE_LICENSE("GPL v2");