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WIP FPC-III support
[linux/fpc-iii.git] / sound / soc / codecs / tlv320adcx140.c
blob3f027c8234a6022c395737250b86880903856705
1 // SPDX-License-Identifier: GPL-2.0
2 // TLV320ADCX140 Sound driver
3 // Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
4
5 #include <linux/module.h>
6 #include <linux/moduleparam.h>
7 #include <linux/init.h>
8 #include <linux/delay.h>
9 #include <linux/pm.h>
10 #include <linux/i2c.h>
11 #include <linux/gpio/consumer.h>
12 #include <linux/regulator/consumer.h>
13 #include <linux/acpi.h>
14 #include <linux/of.h>
15 #include <linux/of_gpio.h>
16 #include <linux/slab.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/initval.h>
22 #include <sound/tlv.h>
23
24 #include "tlv320adcx140.h"
25
26 struct adcx140_priv {
27 struct snd_soc_component *component;
28 struct regulator *supply_areg;
29 struct gpio_desc *gpio_reset;
30 struct regmap *regmap;
31 struct device *dev;
32
33 bool micbias_vg;
34
35 unsigned int dai_fmt;
36 unsigned int tdm_delay;
37 unsigned int slot_width;
38 };
39
40 static const char * const gpo_config_names[] = {
41 "ti,gpo-config-1",
42 "ti,gpo-config-2",
43 "ti,gpo-config-3",
44 "ti,gpo-config-4",
45 };
46
47 static const struct reg_default adcx140_reg_defaults[] = {
48 { ADCX140_PAGE_SELECT, 0x00 },
49 { ADCX140_SW_RESET, 0x00 },
50 { ADCX140_SLEEP_CFG, 0x00 },
51 { ADCX140_SHDN_CFG, 0x05 },
52 { ADCX140_ASI_CFG0, 0x30 },
53 { ADCX140_ASI_CFG1, 0x00 },
54 { ADCX140_ASI_CFG2, 0x00 },
55 { ADCX140_ASI_CH1, 0x00 },
56 { ADCX140_ASI_CH2, 0x01 },
57 { ADCX140_ASI_CH3, 0x02 },
58 { ADCX140_ASI_CH4, 0x03 },
59 { ADCX140_ASI_CH5, 0x04 },
60 { ADCX140_ASI_CH6, 0x05 },
61 { ADCX140_ASI_CH7, 0x06 },
62 { ADCX140_ASI_CH8, 0x07 },
63 { ADCX140_MST_CFG0, 0x02 },
64 { ADCX140_MST_CFG1, 0x48 },
65 { ADCX140_ASI_STS, 0xff },
66 { ADCX140_CLK_SRC, 0x10 },
67 { ADCX140_PDMCLK_CFG, 0x40 },
68 { ADCX140_PDM_CFG, 0x00 },
69 { ADCX140_GPIO_CFG0, 0x22 },
70 { ADCX140_GPO_CFG0, 0x00 },
71 { ADCX140_GPO_CFG1, 0x00 },
72 { ADCX140_GPO_CFG2, 0x00 },
73 { ADCX140_GPO_CFG3, 0x00 },
74 { ADCX140_GPO_VAL, 0x00 },
75 { ADCX140_GPIO_MON, 0x00 },
76 { ADCX140_GPI_CFG0, 0x00 },
77 { ADCX140_GPI_CFG1, 0x00 },
78 { ADCX140_GPI_MON, 0x00 },
79 { ADCX140_INT_CFG, 0x00 },
80 { ADCX140_INT_MASK0, 0xff },
81 { ADCX140_INT_LTCH0, 0x00 },
82 { ADCX140_BIAS_CFG, 0x00 },
83 { ADCX140_CH1_CFG0, 0x00 },
84 { ADCX140_CH1_CFG1, 0x00 },
85 { ADCX140_CH1_CFG2, 0xc9 },
86 { ADCX140_CH1_CFG3, 0x80 },
87 { ADCX140_CH1_CFG4, 0x00 },
88 { ADCX140_CH2_CFG0, 0x00 },
89 { ADCX140_CH2_CFG1, 0x00 },
90 { ADCX140_CH2_CFG2, 0xc9 },
91 { ADCX140_CH2_CFG3, 0x80 },
92 { ADCX140_CH2_CFG4, 0x00 },
93 { ADCX140_CH3_CFG0, 0x00 },
94 { ADCX140_CH3_CFG1, 0x00 },
95 { ADCX140_CH3_CFG2, 0xc9 },
96 { ADCX140_CH3_CFG3, 0x80 },
97 { ADCX140_CH3_CFG4, 0x00 },
98 { ADCX140_CH4_CFG0, 0x00 },
99 { ADCX140_CH4_CFG1, 0x00 },
100 { ADCX140_CH4_CFG2, 0xc9 },
101 { ADCX140_CH4_CFG3, 0x80 },
102 { ADCX140_CH4_CFG4, 0x00 },
103 { ADCX140_CH5_CFG2, 0xc9 },
104 { ADCX140_CH5_CFG3, 0x80 },
105 { ADCX140_CH5_CFG4, 0x00 },
106 { ADCX140_CH6_CFG2, 0xc9 },
107 { ADCX140_CH6_CFG3, 0x80 },
108 { ADCX140_CH6_CFG4, 0x00 },
109 { ADCX140_CH7_CFG2, 0xc9 },
110 { ADCX140_CH7_CFG3, 0x80 },
111 { ADCX140_CH7_CFG4, 0x00 },
112 { ADCX140_CH8_CFG2, 0xc9 },
113 { ADCX140_CH8_CFG3, 0x80 },
114 { ADCX140_CH8_CFG4, 0x00 },
115 { ADCX140_DSP_CFG0, 0x01 },
116 { ADCX140_DSP_CFG1, 0x40 },
117 { ADCX140_DRE_CFG0, 0x7b },
118 { ADCX140_AGC_CFG0, 0xe7 },
119 { ADCX140_IN_CH_EN, 0xf0 },
120 { ADCX140_ASI_OUT_CH_EN, 0x00 },
121 { ADCX140_PWR_CFG, 0x00 },
122 { ADCX140_DEV_STS0, 0x00 },
123 { ADCX140_DEV_STS1, 0x80 },
124 };
125
126 static const struct regmap_range_cfg adcx140_ranges[] = {
127 {
128 .range_min = 0,
129 .range_max = 12 * 128,
130 .selector_reg = ADCX140_PAGE_SELECT,
131 .selector_mask = 0xff,
132 .selector_shift = 0,
133 .window_start = 0,
134 .window_len = 128,
135 },
136 };
137
138 static bool adcx140_volatile(struct device *dev, unsigned int reg)
139 {
140 switch (reg) {
141 case ADCX140_SW_RESET:
142 case ADCX140_DEV_STS0:
143 case ADCX140_DEV_STS1:
144 case ADCX140_ASI_STS:
145 return true;
146 default:
147 return false;
148 }
149 }
150
151 static const struct regmap_config adcx140_i2c_regmap = {
152 .reg_bits = 8,
153 .val_bits = 8,
154 .reg_defaults = adcx140_reg_defaults,
155 .num_reg_defaults = ARRAY_SIZE(adcx140_reg_defaults),
156 .cache_type = REGCACHE_FLAT,
157 .ranges = adcx140_ranges,
158 .num_ranges = ARRAY_SIZE(adcx140_ranges),
159 .max_register = 12 * 128,
160 .volatile_reg = adcx140_volatile,
161 };
162
163 /* Digital Volume control. From -100 to 27 dB in 0.5 dB steps */
164 static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10050, 50, 0);
165
166 /* ADC gain. From 0 to 42 dB in 1 dB steps */
167 static DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0);
168
169 /* DRE Level. From -12 dB to -66 dB in 1 dB steps */
170 static DECLARE_TLV_DB_SCALE(dre_thresh_tlv, -6600, 100, 0);
171 /* DRE Max Gain. From 2 dB to 26 dB in 2 dB steps */
172 static DECLARE_TLV_DB_SCALE(dre_gain_tlv, 200, 200, 0);
173
174 /* AGC Level. From -6 dB to -36 dB in 2 dB steps */
175 static DECLARE_TLV_DB_SCALE(agc_thresh_tlv, -3600, 200, 0);
176 /* AGC Max Gain. From 3 dB to 42 dB in 3 dB steps */
177 static DECLARE_TLV_DB_SCALE(agc_gain_tlv, 300, 300, 0);
178
179 static const char * const decimation_filter_text[] = {
180 "Linear Phase", "Low Latency", "Ultra-low Latency"
181 };
182
183 static SOC_ENUM_SINGLE_DECL(decimation_filter_enum, ADCX140_DSP_CFG0, 4,
184 decimation_filter_text);
185
186 static const struct snd_kcontrol_new decimation_filter_controls[] = {
187 SOC_DAPM_ENUM("Decimation Filter", decimation_filter_enum),
188 };
189
190 static const char * const pdmclk_text[] = {
191 "2.8224 MHz", "1.4112 MHz", "705.6 kHz", "5.6448 MHz"
192 };
193
194 static SOC_ENUM_SINGLE_DECL(pdmclk_select_enum, ADCX140_PDMCLK_CFG, 0,
195 pdmclk_text);
196
197 static const struct snd_kcontrol_new pdmclk_div_controls[] = {
198 SOC_DAPM_ENUM("PDM Clk Divider Select", pdmclk_select_enum),
199 };
200
201 static const char * const resistor_text[] = {
202 "2.5 kOhm", "10 kOhm", "20 kOhm"
203 };
204
205 static SOC_ENUM_SINGLE_DECL(in1_resistor_enum, ADCX140_CH1_CFG0, 2,
206 resistor_text);
207 static SOC_ENUM_SINGLE_DECL(in2_resistor_enum, ADCX140_CH2_CFG0, 2,
208 resistor_text);
209 static SOC_ENUM_SINGLE_DECL(in3_resistor_enum, ADCX140_CH3_CFG0, 2,
210 resistor_text);
211 static SOC_ENUM_SINGLE_DECL(in4_resistor_enum, ADCX140_CH4_CFG0, 2,
212 resistor_text);
213
214 static const struct snd_kcontrol_new in1_resistor_controls[] = {
215 SOC_DAPM_ENUM("CH1 Resistor Select", in1_resistor_enum),
216 };
217 static const struct snd_kcontrol_new in2_resistor_controls[] = {
218 SOC_DAPM_ENUM("CH2 Resistor Select", in2_resistor_enum),
219 };
220 static const struct snd_kcontrol_new in3_resistor_controls[] = {
221 SOC_DAPM_ENUM("CH3 Resistor Select", in3_resistor_enum),
222 };
223 static const struct snd_kcontrol_new in4_resistor_controls[] = {
224 SOC_DAPM_ENUM("CH4 Resistor Select", in4_resistor_enum),
225 };
226
227 /* Analog/Digital Selection */
228 static const char * const adcx140_mic_sel_text[] = {"Analog", "Line In", "Digital"};
229 static const char * const adcx140_analog_sel_text[] = {"Analog", "Line In"};
230
231 static SOC_ENUM_SINGLE_DECL(adcx140_mic1p_enum,
232 ADCX140_CH1_CFG0, 5,
233 adcx140_mic_sel_text);
234
235 static const struct snd_kcontrol_new adcx140_dapm_mic1p_control =
236 SOC_DAPM_ENUM("MIC1P MUX", adcx140_mic1p_enum);
237
238 static SOC_ENUM_SINGLE_DECL(adcx140_mic1_analog_enum,
239 ADCX140_CH1_CFG0, 7,
240 adcx140_analog_sel_text);
241
242 static const struct snd_kcontrol_new adcx140_dapm_mic1_analog_control =
243 SOC_DAPM_ENUM("MIC1 Analog MUX", adcx140_mic1_analog_enum);
244
245 static SOC_ENUM_SINGLE_DECL(adcx140_mic1m_enum,
246 ADCX140_CH1_CFG0, 5,
247 adcx140_mic_sel_text);
248
249 static const struct snd_kcontrol_new adcx140_dapm_mic1m_control =
250 SOC_DAPM_ENUM("MIC1M MUX", adcx140_mic1m_enum);
251
252 static SOC_ENUM_SINGLE_DECL(adcx140_mic2p_enum,
253 ADCX140_CH2_CFG0, 5,
254 adcx140_mic_sel_text);
255
256 static const struct snd_kcontrol_new adcx140_dapm_mic2p_control =
257 SOC_DAPM_ENUM("MIC2P MUX", adcx140_mic2p_enum);
258
259 static SOC_ENUM_SINGLE_DECL(adcx140_mic2_analog_enum,
260 ADCX140_CH2_CFG0, 7,
261 adcx140_analog_sel_text);
262
263 static const struct snd_kcontrol_new adcx140_dapm_mic2_analog_control =
264 SOC_DAPM_ENUM("MIC2 Analog MUX", adcx140_mic2_analog_enum);
265
266 static SOC_ENUM_SINGLE_DECL(adcx140_mic2m_enum,
267 ADCX140_CH2_CFG0, 5,
268 adcx140_mic_sel_text);
269
270 static const struct snd_kcontrol_new adcx140_dapm_mic2m_control =
271 SOC_DAPM_ENUM("MIC2M MUX", adcx140_mic2m_enum);
272
273 static SOC_ENUM_SINGLE_DECL(adcx140_mic3p_enum,
274 ADCX140_CH3_CFG0, 5,
275 adcx140_mic_sel_text);
276
277 static const struct snd_kcontrol_new adcx140_dapm_mic3p_control =
278 SOC_DAPM_ENUM("MIC3P MUX", adcx140_mic3p_enum);
279
280 static SOC_ENUM_SINGLE_DECL(adcx140_mic3_analog_enum,
281 ADCX140_CH3_CFG0, 7,
282 adcx140_analog_sel_text);
283
284 static const struct snd_kcontrol_new adcx140_dapm_mic3_analog_control =
285 SOC_DAPM_ENUM("MIC3 Analog MUX", adcx140_mic3_analog_enum);
286
287 static SOC_ENUM_SINGLE_DECL(adcx140_mic3m_enum,
288 ADCX140_CH3_CFG0, 5,
289 adcx140_mic_sel_text);
290
291 static const struct snd_kcontrol_new adcx140_dapm_mic3m_control =
292 SOC_DAPM_ENUM("MIC3M MUX", adcx140_mic3m_enum);
293
294 static SOC_ENUM_SINGLE_DECL(adcx140_mic4p_enum,
295 ADCX140_CH4_CFG0, 5,
296 adcx140_mic_sel_text);
297
298 static const struct snd_kcontrol_new adcx140_dapm_mic4p_control =
299 SOC_DAPM_ENUM("MIC4P MUX", adcx140_mic4p_enum);
300
301 static SOC_ENUM_SINGLE_DECL(adcx140_mic4_analog_enum,
302 ADCX140_CH4_CFG0, 7,
303 adcx140_analog_sel_text);
304
305 static const struct snd_kcontrol_new adcx140_dapm_mic4_analog_control =
306 SOC_DAPM_ENUM("MIC4 Analog MUX", adcx140_mic4_analog_enum);
307
308 static SOC_ENUM_SINGLE_DECL(adcx140_mic4m_enum,
309 ADCX140_CH4_CFG0, 5,
310 adcx140_mic_sel_text);
311
312 static const struct snd_kcontrol_new adcx140_dapm_mic4m_control =
313 SOC_DAPM_ENUM("MIC4M MUX", adcx140_mic4m_enum);
314
315 static const struct snd_kcontrol_new adcx140_dapm_ch1_en_switch =
316 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 7, 1, 0);
317 static const struct snd_kcontrol_new adcx140_dapm_ch2_en_switch =
318 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 6, 1, 0);
319 static const struct snd_kcontrol_new adcx140_dapm_ch3_en_switch =
320 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 5, 1, 0);
321 static const struct snd_kcontrol_new adcx140_dapm_ch4_en_switch =
322 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 4, 1, 0);
323 static const struct snd_kcontrol_new adcx140_dapm_ch5_en_switch =
324 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 3, 1, 0);
325 static const struct snd_kcontrol_new adcx140_dapm_ch6_en_switch =
326 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 2, 1, 0);
327 static const struct snd_kcontrol_new adcx140_dapm_ch7_en_switch =
328 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 1, 1, 0);
329 static const struct snd_kcontrol_new adcx140_dapm_ch8_en_switch =
330 SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 0, 1, 0);
331
332 static const struct snd_kcontrol_new adcx140_dapm_ch1_dre_en_switch =
333 SOC_DAPM_SINGLE("Switch", ADCX140_CH1_CFG0, 0, 1, 0);
334 static const struct snd_kcontrol_new adcx140_dapm_ch2_dre_en_switch =
335 SOC_DAPM_SINGLE("Switch", ADCX140_CH2_CFG0, 0, 1, 0);
336 static const struct snd_kcontrol_new adcx140_dapm_ch3_dre_en_switch =
337 SOC_DAPM_SINGLE("Switch", ADCX140_CH3_CFG0, 0, 1, 0);
338 static const struct snd_kcontrol_new adcx140_dapm_ch4_dre_en_switch =
339 SOC_DAPM_SINGLE("Switch", ADCX140_CH4_CFG0, 0, 1, 0);
340
341 static const struct snd_kcontrol_new adcx140_dapm_dre_en_switch =
342 SOC_DAPM_SINGLE("Switch", ADCX140_DSP_CFG1, 3, 1, 0);
343
344 /* Output Mixer */
345 static const struct snd_kcontrol_new adcx140_output_mixer_controls[] = {
346 SOC_DAPM_SINGLE("Digital CH1 Switch", 0, 0, 0, 0),
347 SOC_DAPM_SINGLE("Digital CH2 Switch", 0, 0, 0, 0),
348 SOC_DAPM_SINGLE("Digital CH3 Switch", 0, 0, 0, 0),
349 SOC_DAPM_SINGLE("Digital CH4 Switch", 0, 0, 0, 0),
350 };
351
352 static const struct snd_soc_dapm_widget adcx140_dapm_widgets[] = {
353 /* Analog Differential Inputs */
354 SND_SOC_DAPM_INPUT("MIC1P"),
355 SND_SOC_DAPM_INPUT("MIC1M"),
356 SND_SOC_DAPM_INPUT("MIC2P"),
357 SND_SOC_DAPM_INPUT("MIC2M"),
358 SND_SOC_DAPM_INPUT("MIC3P"),
359 SND_SOC_DAPM_INPUT("MIC3M"),
360 SND_SOC_DAPM_INPUT("MIC4P"),
361 SND_SOC_DAPM_INPUT("MIC4M"),
362
363 SND_SOC_DAPM_OUTPUT("CH1_OUT"),
364 SND_SOC_DAPM_OUTPUT("CH2_OUT"),
365 SND_SOC_DAPM_OUTPUT("CH3_OUT"),
366 SND_SOC_DAPM_OUTPUT("CH4_OUT"),
367 SND_SOC_DAPM_OUTPUT("CH5_OUT"),
368 SND_SOC_DAPM_OUTPUT("CH6_OUT"),
369 SND_SOC_DAPM_OUTPUT("CH7_OUT"),
370 SND_SOC_DAPM_OUTPUT("CH8_OUT"),
371
372 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
373 &adcx140_output_mixer_controls[0],
374 ARRAY_SIZE(adcx140_output_mixer_controls)),
375
376 /* Input Selection to MIC_PGA */
377 SND_SOC_DAPM_MUX("MIC1P Input Mux", SND_SOC_NOPM, 0, 0,
378 &adcx140_dapm_mic1p_control),
379 SND_SOC_DAPM_MUX("MIC2P Input Mux", SND_SOC_NOPM, 0, 0,
380 &adcx140_dapm_mic2p_control),
381 SND_SOC_DAPM_MUX("MIC3P Input Mux", SND_SOC_NOPM, 0, 0,
382 &adcx140_dapm_mic3p_control),
383 SND_SOC_DAPM_MUX("MIC4P Input Mux", SND_SOC_NOPM, 0, 0,
384 &adcx140_dapm_mic4p_control),
385
386 /* Input Selection to MIC_PGA */
387 SND_SOC_DAPM_MUX("MIC1 Analog Mux", SND_SOC_NOPM, 0, 0,
388 &adcx140_dapm_mic1_analog_control),
389 SND_SOC_DAPM_MUX("MIC2 Analog Mux", SND_SOC_NOPM, 0, 0,
390 &adcx140_dapm_mic2_analog_control),
391 SND_SOC_DAPM_MUX("MIC3 Analog Mux", SND_SOC_NOPM, 0, 0,
392 &adcx140_dapm_mic3_analog_control),
393 SND_SOC_DAPM_MUX("MIC4 Analog Mux", SND_SOC_NOPM, 0, 0,
394 &adcx140_dapm_mic4_analog_control),
395
396 SND_SOC_DAPM_MUX("MIC1M Input Mux", SND_SOC_NOPM, 0, 0,
397 &adcx140_dapm_mic1m_control),
398 SND_SOC_DAPM_MUX("MIC2M Input Mux", SND_SOC_NOPM, 0, 0,
399 &adcx140_dapm_mic2m_control),
400 SND_SOC_DAPM_MUX("MIC3M Input Mux", SND_SOC_NOPM, 0, 0,
401 &adcx140_dapm_mic3m_control),
402 SND_SOC_DAPM_MUX("MIC4M Input Mux", SND_SOC_NOPM, 0, 0,
403 &adcx140_dapm_mic4m_control),
404
405 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH1", SND_SOC_NOPM, 0, 0, NULL, 0),
406 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH2", SND_SOC_NOPM, 0, 0, NULL, 0),
407 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH3", SND_SOC_NOPM, 0, 0, NULL, 0),
408 SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH4", SND_SOC_NOPM, 0, 0, NULL, 0),
409
410 SND_SOC_DAPM_ADC("CH1_ADC", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0),
411 SND_SOC_DAPM_ADC("CH2_ADC", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0),
412 SND_SOC_DAPM_ADC("CH3_ADC", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0),
413 SND_SOC_DAPM_ADC("CH4_ADC", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0),
414
415 SND_SOC_DAPM_ADC("CH1_DIG", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0),
416 SND_SOC_DAPM_ADC("CH2_DIG", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0),
417 SND_SOC_DAPM_ADC("CH3_DIG", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0),
418 SND_SOC_DAPM_ADC("CH4_DIG", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0),
419 SND_SOC_DAPM_ADC("CH5_DIG", "CH5 Capture", ADCX140_IN_CH_EN, 3, 0),
420 SND_SOC_DAPM_ADC("CH6_DIG", "CH6 Capture", ADCX140_IN_CH_EN, 2, 0),
421 SND_SOC_DAPM_ADC("CH7_DIG", "CH7 Capture", ADCX140_IN_CH_EN, 1, 0),
422 SND_SOC_DAPM_ADC("CH8_DIG", "CH8 Capture", ADCX140_IN_CH_EN, 0, 0),
423
424
425 SND_SOC_DAPM_SWITCH("CH1_ASI_EN", SND_SOC_NOPM, 0, 0,
426 &adcx140_dapm_ch1_en_switch),
427 SND_SOC_DAPM_SWITCH("CH2_ASI_EN", SND_SOC_NOPM, 0, 0,
428 &adcx140_dapm_ch2_en_switch),
429 SND_SOC_DAPM_SWITCH("CH3_ASI_EN", SND_SOC_NOPM, 0, 0,
430 &adcx140_dapm_ch3_en_switch),
431 SND_SOC_DAPM_SWITCH("CH4_ASI_EN", SND_SOC_NOPM, 0, 0,
432 &adcx140_dapm_ch4_en_switch),
433
434 SND_SOC_DAPM_SWITCH("CH5_ASI_EN", SND_SOC_NOPM, 0, 0,
435 &adcx140_dapm_ch5_en_switch),
436 SND_SOC_DAPM_SWITCH("CH6_ASI_EN", SND_SOC_NOPM, 0, 0,
437 &adcx140_dapm_ch6_en_switch),
438 SND_SOC_DAPM_SWITCH("CH7_ASI_EN", SND_SOC_NOPM, 0, 0,
439 &adcx140_dapm_ch7_en_switch),
440 SND_SOC_DAPM_SWITCH("CH8_ASI_EN", SND_SOC_NOPM, 0, 0,
441 &adcx140_dapm_ch8_en_switch),
442
443 SND_SOC_DAPM_SWITCH("DRE_ENABLE", SND_SOC_NOPM, 0, 0,
444 &adcx140_dapm_dre_en_switch),
445
446 SND_SOC_DAPM_SWITCH("CH1_DRE_EN", SND_SOC_NOPM, 0, 0,
447 &adcx140_dapm_ch1_dre_en_switch),
448 SND_SOC_DAPM_SWITCH("CH2_DRE_EN", SND_SOC_NOPM, 0, 0,
449 &adcx140_dapm_ch2_dre_en_switch),
450 SND_SOC_DAPM_SWITCH("CH3_DRE_EN", SND_SOC_NOPM, 0, 0,
451 &adcx140_dapm_ch3_dre_en_switch),
452 SND_SOC_DAPM_SWITCH("CH4_DRE_EN", SND_SOC_NOPM, 0, 0,
453 &adcx140_dapm_ch4_dre_en_switch),
454
455 SND_SOC_DAPM_MUX("IN1 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
456 in1_resistor_controls),
457 SND_SOC_DAPM_MUX("IN2 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
458 in2_resistor_controls),
459 SND_SOC_DAPM_MUX("IN3 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
460 in3_resistor_controls),
461 SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
462 in4_resistor_controls),
463
464 SND_SOC_DAPM_MUX("PDM Clk Div Select", SND_SOC_NOPM, 0, 0,
465 pdmclk_div_controls),
466
467 SND_SOC_DAPM_MUX("Decimation Filter", SND_SOC_NOPM, 0, 0,
468 decimation_filter_controls),
469 };
470
471 static const struct snd_soc_dapm_route adcx140_audio_map[] = {
472 /* Outputs */
473 {"CH1_OUT", NULL, "Output Mixer"},
474 {"CH2_OUT", NULL, "Output Mixer"},
475 {"CH3_OUT", NULL, "Output Mixer"},
476 {"CH4_OUT", NULL, "Output Mixer"},
477
478 {"CH1_ASI_EN", "Switch", "CH1_ADC"},
479 {"CH2_ASI_EN", "Switch", "CH2_ADC"},
480 {"CH3_ASI_EN", "Switch", "CH3_ADC"},
481 {"CH4_ASI_EN", "Switch", "CH4_ADC"},
482
483 {"CH1_ASI_EN", "Switch", "CH1_DIG"},
484 {"CH2_ASI_EN", "Switch", "CH2_DIG"},
485 {"CH3_ASI_EN", "Switch", "CH3_DIG"},
486 {"CH4_ASI_EN", "Switch", "CH4_DIG"},
487 {"CH5_ASI_EN", "Switch", "CH5_DIG"},
488 {"CH6_ASI_EN", "Switch", "CH6_DIG"},
489 {"CH7_ASI_EN", "Switch", "CH7_DIG"},
490 {"CH8_ASI_EN", "Switch", "CH8_DIG"},
491
492 {"CH5_ASI_EN", "Switch", "CH5_OUT"},
493 {"CH6_ASI_EN", "Switch", "CH6_OUT"},
494 {"CH7_ASI_EN", "Switch", "CH7_OUT"},
495 {"CH8_ASI_EN", "Switch", "CH8_OUT"},
496
497 {"Decimation Filter", "Linear Phase", "DRE_ENABLE"},
498 {"Decimation Filter", "Low Latency", "DRE_ENABLE"},
499 {"Decimation Filter", "Ultra-low Latency", "DRE_ENABLE"},
500
501 {"DRE_ENABLE", "Switch", "CH1_DRE_EN"},
502 {"DRE_ENABLE", "Switch", "CH2_DRE_EN"},
503 {"DRE_ENABLE", "Switch", "CH3_DRE_EN"},
504 {"DRE_ENABLE", "Switch", "CH4_DRE_EN"},
505
506 {"CH1_DRE_EN", "Switch", "CH1_ADC"},
507 {"CH2_DRE_EN", "Switch", "CH2_ADC"},
508 {"CH3_DRE_EN", "Switch", "CH3_ADC"},
509 {"CH4_DRE_EN", "Switch", "CH4_ADC"},
510
511 /* Mic input */
512 {"CH1_ADC", NULL, "MIC_GAIN_CTL_CH1"},
513 {"CH2_ADC", NULL, "MIC_GAIN_CTL_CH2"},
514 {"CH3_ADC", NULL, "MIC_GAIN_CTL_CH3"},
515 {"CH4_ADC", NULL, "MIC_GAIN_CTL_CH4"},
516
517 {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
518 {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
519 {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
520 {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
521 {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
522 {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
523 {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
524 {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
525
526 {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1P Input Mux"},
527 {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1P Input Mux"},
528 {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1P Input Mux"},
529
530 {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1M Input Mux"},
531 {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1M Input Mux"},
532 {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1M Input Mux"},
533
534 {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2P Input Mux"},
535 {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2P Input Mux"},
536 {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2P Input Mux"},
537
538 {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2M Input Mux"},
539 {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2M Input Mux"},
540 {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2M Input Mux"},
541
542 {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3P Input Mux"},
543 {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3P Input Mux"},
544 {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3P Input Mux"},
545
546 {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3M Input Mux"},
547 {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3M Input Mux"},
548 {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3M Input Mux"},
549
550 {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4P Input Mux"},
551 {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4P Input Mux"},
552 {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4P Input Mux"},
553
554 {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4M Input Mux"},
555 {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"},
556 {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"},
557
558 {"PDM Clk Div Select", "2.8224 MHz", "MIC1P Input Mux"},
559 {"PDM Clk Div Select", "1.4112 MHz", "MIC1P Input Mux"},
560 {"PDM Clk Div Select", "705.6 kHz", "MIC1P Input Mux"},
561 {"PDM Clk Div Select", "5.6448 MHz", "MIC1P Input Mux"},
562
563 {"MIC1P Input Mux", NULL, "CH1_DIG"},
564 {"MIC1M Input Mux", NULL, "CH2_DIG"},
565 {"MIC2P Input Mux", NULL, "CH3_DIG"},
566 {"MIC2M Input Mux", NULL, "CH4_DIG"},
567 {"MIC3P Input Mux", NULL, "CH5_DIG"},
568 {"MIC3M Input Mux", NULL, "CH6_DIG"},
569 {"MIC4P Input Mux", NULL, "CH7_DIG"},
570 {"MIC4M Input Mux", NULL, "CH8_DIG"},
571
572 {"MIC1 Analog Mux", "Line In", "MIC1P"},
573 {"MIC2 Analog Mux", "Line In", "MIC2P"},
574 {"MIC3 Analog Mux", "Line In", "MIC3P"},
575 {"MIC4 Analog Mux", "Line In", "MIC4P"},
576
577 {"MIC1P Input Mux", "Analog", "MIC1P"},
578 {"MIC1M Input Mux", "Analog", "MIC1M"},
579 {"MIC2P Input Mux", "Analog", "MIC2P"},
580 {"MIC2M Input Mux", "Analog", "MIC2M"},
581 {"MIC3P Input Mux", "Analog", "MIC3P"},
582 {"MIC3M Input Mux", "Analog", "MIC3M"},
583 {"MIC4P Input Mux", "Analog", "MIC4P"},
584 {"MIC4M Input Mux", "Analog", "MIC4M"},
585
586 {"MIC1P Input Mux", "Digital", "MIC1P"},
587 {"MIC1M Input Mux", "Digital", "MIC1M"},
588 {"MIC2P Input Mux", "Digital", "MIC2P"},
589 {"MIC2M Input Mux", "Digital", "MIC2M"},
590 {"MIC3P Input Mux", "Digital", "MIC3P"},
591 {"MIC3M Input Mux", "Digital", "MIC3M"},
592 {"MIC4P Input Mux", "Digital", "MIC4P"},
593 {"MIC4M Input Mux", "Digital", "MIC4M"},
594 };
595
596 static const struct snd_kcontrol_new adcx140_snd_controls[] = {
597 SOC_SINGLE_TLV("Analog CH1 Mic Gain Volume", ADCX140_CH1_CFG1, 2, 42, 0,
598 adc_tlv),
599 SOC_SINGLE_TLV("Analog CH2 Mic Gain Volume", ADCX140_CH2_CFG1, 2, 42, 0,
600 adc_tlv),
601 SOC_SINGLE_TLV("Analog CH3 Mic Gain Volume", ADCX140_CH3_CFG1, 2, 42, 0,
602 adc_tlv),
603 SOC_SINGLE_TLV("Analog CH4 Mic Gain Volume", ADCX140_CH4_CFG1, 2, 42, 0,
604 adc_tlv),
605
606 SOC_SINGLE_TLV("DRE Threshold", ADCX140_DRE_CFG0, 4, 9, 0,
607 dre_thresh_tlv),
608 SOC_SINGLE_TLV("DRE Max Gain", ADCX140_DRE_CFG0, 0, 12, 0,
609 dre_gain_tlv),
610
611 SOC_SINGLE_TLV("AGC Threshold", ADCX140_AGC_CFG0, 4, 15, 0,
612 agc_thresh_tlv),
613 SOC_SINGLE_TLV("AGC Max Gain", ADCX140_AGC_CFG0, 0, 13, 0,
614 agc_gain_tlv),
615
616 SOC_SINGLE_TLV("Digital CH1 Out Volume", ADCX140_CH1_CFG2,
617 0, 0xff, 0, dig_vol_tlv),
618 SOC_SINGLE_TLV("Digital CH2 Out Volume", ADCX140_CH2_CFG2,
619 0, 0xff, 0, dig_vol_tlv),
620 SOC_SINGLE_TLV("Digital CH3 Out Volume", ADCX140_CH3_CFG2,
621 0, 0xff, 0, dig_vol_tlv),
622 SOC_SINGLE_TLV("Digital CH4 Out Volume", ADCX140_CH4_CFG2,
623 0, 0xff, 0, dig_vol_tlv),
624 SOC_SINGLE_TLV("Digital CH5 Out Volume", ADCX140_CH5_CFG2,
625 0, 0xff, 0, dig_vol_tlv),
626 SOC_SINGLE_TLV("Digital CH6 Out Volume", ADCX140_CH6_CFG2,
627 0, 0xff, 0, dig_vol_tlv),
628 SOC_SINGLE_TLV("Digital CH7 Out Volume", ADCX140_CH7_CFG2,
629 0, 0xff, 0, dig_vol_tlv),
630 SOC_SINGLE_TLV("Digital CH8 Out Volume", ADCX140_CH8_CFG2,
631 0, 0xff, 0, dig_vol_tlv),
632 };
633
634 static int adcx140_reset(struct adcx140_priv *adcx140)
635 {
636 int ret = 0;
637
638 if (adcx140->gpio_reset) {
639 gpiod_direction_output(adcx140->gpio_reset, 0);
640 /* 8.4.1: wait for hw shutdown (25ms) + >= 1ms */
641 usleep_range(30000, 100000);
642 gpiod_direction_output(adcx140->gpio_reset, 1);
643 } else {
644 ret = regmap_write(adcx140->regmap, ADCX140_SW_RESET,
645 ADCX140_RESET);
646 }
647
648 /* 8.4.2: wait >= 10 ms after entering sleep mode. */
649 usleep_range(10000, 100000);
650
651 return ret;
652 }
653
654 static void adcx140_pwr_ctrl(struct adcx140_priv *adcx140, bool power_state)
655 {
656 int pwr_ctrl = 0;
657
658 if (power_state)
659 pwr_ctrl = ADCX140_PWR_CFG_ADC_PDZ | ADCX140_PWR_CFG_PLL_PDZ;
660
661 if (adcx140->micbias_vg && power_state)
662 pwr_ctrl |= ADCX140_PWR_CFG_BIAS_PDZ;
663
664 regmap_update_bits(adcx140->regmap, ADCX140_PWR_CFG,
665 ADCX140_PWR_CTRL_MSK, pwr_ctrl);
666 }
667
668 static int adcx140_hw_params(struct snd_pcm_substream *substream,
669 struct snd_pcm_hw_params *params,
670 struct snd_soc_dai *dai)
671 {
672 struct snd_soc_component *component = dai->component;
673 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
674 u8 data = 0;
675
676 switch (params_width(params)) {
677 case 16:
678 data = ADCX140_16_BIT_WORD;
679 break;
680 case 20:
681 data = ADCX140_20_BIT_WORD;
682 break;
683 case 24:
684 data = ADCX140_24_BIT_WORD;
685 break;
686 case 32:
687 data = ADCX140_32_BIT_WORD;
688 break;
689 default:
690 dev_err(component->dev, "%s: Unsupported width %d\n",
691 __func__, params_width(params));
692 return -EINVAL;
693 }
694
695 adcx140_pwr_ctrl(adcx140, false);
696
697 snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
698 ADCX140_WORD_LEN_MSK, data);
699
700 adcx140_pwr_ctrl(adcx140, true);
701
702 return 0;
703 }
704
705 static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
706 unsigned int fmt)
707 {
708 struct snd_soc_component *component = codec_dai->component;
709 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
710 u8 iface_reg1 = 0;
711 u8 iface_reg2 = 0;
712 int offset = 0;
713 bool inverted_bclk = false;
714
715 /* set master/slave audio interface */
716 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
717 case SND_SOC_DAIFMT_CBM_CFM:
718 iface_reg2 |= ADCX140_BCLK_FSYNC_MASTER;
719 break;
720 case SND_SOC_DAIFMT_CBS_CFS:
721 break;
722 case SND_SOC_DAIFMT_CBS_CFM:
723 case SND_SOC_DAIFMT_CBM_CFS:
724 default:
725 dev_err(component->dev, "Invalid DAI master/slave interface\n");
726 return -EINVAL;
727 }
728
729 /* interface format */
730 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
731 case SND_SOC_DAIFMT_I2S:
732 iface_reg1 |= ADCX140_I2S_MODE_BIT;
733 break;
734 case SND_SOC_DAIFMT_LEFT_J:
735 iface_reg1 |= ADCX140_LEFT_JUST_BIT;
736 break;
737 case SND_SOC_DAIFMT_DSP_A:
738 offset = 1;
739 inverted_bclk = true;
740 break;
741 case SND_SOC_DAIFMT_DSP_B:
742 inverted_bclk = true;
743 break;
744 default:
745 dev_err(component->dev, "Invalid DAI interface format\n");
746 return -EINVAL;
747 }
748
749 /* signal polarity */
750 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
751 case SND_SOC_DAIFMT_IB_NF:
752 case SND_SOC_DAIFMT_IB_IF:
753 inverted_bclk = !inverted_bclk;
754 break;
755 case SND_SOC_DAIFMT_NB_IF:
756 iface_reg1 |= ADCX140_FSYNCINV_BIT;
757 break;
758 case SND_SOC_DAIFMT_NB_NF:
759 break;
760 default:
761 dev_err(component->dev, "Invalid DAI clock signal polarity\n");
762 return -EINVAL;
763 }
764
765 if (inverted_bclk)
766 iface_reg1 |= ADCX140_BCLKINV_BIT;
767
768 adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
769
770 adcx140_pwr_ctrl(adcx140, false);
771
772 snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
773 ADCX140_FSYNCINV_BIT |
774 ADCX140_BCLKINV_BIT |
775 ADCX140_ASI_FORMAT_MSK,
776 iface_reg1);
777 snd_soc_component_update_bits(component, ADCX140_MST_CFG0,
778 ADCX140_BCLK_FSYNC_MASTER, iface_reg2);
779
780 /* Configure data offset */
781 snd_soc_component_update_bits(component, ADCX140_ASI_CFG1,
782 ADCX140_TX_OFFSET_MASK, offset);
783
784 adcx140_pwr_ctrl(adcx140, true);
785
786 return 0;
787 }
788
789 static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
790 unsigned int tx_mask, unsigned int rx_mask,
791 int slots, int slot_width)
792 {
793 struct snd_soc_component *component = codec_dai->component;
794 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
795 unsigned int lsb;
796
797 /* TDM based on DSP mode requires slots to be adjacent */
798 lsb = __ffs(tx_mask);
799 if ((lsb + 1) != __fls(tx_mask)) {
800 dev_err(component->dev, "Invalid mask, slots must be adjacent\n");
801 return -EINVAL;
802 }
803
804 switch (slot_width) {
805 case 16:
806 case 20:
807 case 24:
808 case 32:
809 break;
810 default:
811 dev_err(component->dev, "Unsupported slot width %d\n", slot_width);
812 return -EINVAL;
813 }
814
815 adcx140->tdm_delay = lsb;
816 adcx140->slot_width = slot_width;
817
818 return 0;
819 }
820
821 static const struct snd_soc_dai_ops adcx140_dai_ops = {
822 .hw_params = adcx140_hw_params,
823 .set_fmt = adcx140_set_dai_fmt,
824 .set_tdm_slot = adcx140_set_dai_tdm_slot,
825 };
826
827 static int adcx140_configure_gpo(struct adcx140_priv *adcx140)
828 {
829 u32 gpo_outputs[ADCX140_NUM_GPOS];
830 u32 gpo_output_val = 0;
831 int ret;
832 int i;
833
834 for (i = 0; i < ADCX140_NUM_GPOS; i++) {
835 ret = device_property_read_u32_array(adcx140->dev,
836 gpo_config_names[i],
837 gpo_outputs,
838 ADCX140_NUM_GPO_CFGS);
839 if (ret)
840 continue;
841
842 if (gpo_outputs[0] > ADCX140_GPO_CFG_MAX) {
843 dev_err(adcx140->dev, "GPO%d config out of range\n", i + 1);
844 return -EINVAL;
845 }
846
847 if (gpo_outputs[1] > ADCX140_GPO_DRV_MAX) {
848 dev_err(adcx140->dev, "GPO%d drive out of range\n", i + 1);
849 return -EINVAL;
850 }
851
852 gpo_output_val = gpo_outputs[0] << ADCX140_GPO_SHIFT |
853 gpo_outputs[1];
854 ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG0 + i,
855 gpo_output_val);
856 if (ret)
857 return ret;
858 }
859
860 return 0;
861
862 }
863
864 static int adcx140_configure_gpio(struct adcx140_priv *adcx140)
865 {
866 int gpio_count = 0;
867 u32 gpio_outputs[ADCX140_NUM_GPIO_CFGS];
868 u32 gpio_output_val = 0;
869 int ret;
870
871 gpio_count = device_property_count_u32(adcx140->dev,
872 "ti,gpio-config");
873 if (gpio_count == 0)
874 return 0;
875
876 if (gpio_count != ADCX140_NUM_GPIO_CFGS)
877 return -EINVAL;
878
879 ret = device_property_read_u32_array(adcx140->dev, "ti,gpio-config",
880 gpio_outputs, gpio_count);
881 if (ret)
882 return ret;
883
884 if (gpio_outputs[0] > ADCX140_GPIO_CFG_MAX) {
885 dev_err(adcx140->dev, "GPIO config out of range\n");
886 return -EINVAL;
887 }
888
889 if (gpio_outputs[1] > ADCX140_GPIO_DRV_MAX) {
890 dev_err(adcx140->dev, "GPIO drive out of range\n");
891 return -EINVAL;
892 }
893
894 gpio_output_val = gpio_outputs[0] << ADCX140_GPIO_SHIFT
895 | gpio_outputs[1];
896
897 return regmap_write(adcx140->regmap, ADCX140_GPIO_CFG0, gpio_output_val);
898 }
899
900 static int adcx140_codec_probe(struct snd_soc_component *component)
901 {
902 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
903 int sleep_cfg_val = ADCX140_WAKE_DEV;
904 u32 bias_source;
905 u32 vref_source;
906 u8 bias_cfg;
907 int pdm_count;
908 u32 pdm_edges[ADCX140_NUM_PDM_EDGES];
909 u32 pdm_edge_val = 0;
910 int gpi_count;
911 u32 gpi_inputs[ADCX140_NUM_GPI_PINS];
912 u32 gpi_input_val = 0;
913 int i;
914 int ret;
915 bool tx_high_z;
916
917 ret = device_property_read_u32(adcx140->dev, "ti,mic-bias-source",
918 &bias_source);
919 if (ret || bias_source > ADCX140_MIC_BIAS_VAL_AVDD) {
920 bias_source = ADCX140_MIC_BIAS_VAL_VREF;
921 adcx140->micbias_vg = false;
922 } else {
923 adcx140->micbias_vg = true;
924 }
925
926 ret = device_property_read_u32(adcx140->dev, "ti,vref-source",
927 &vref_source);
928 if (ret)
929 vref_source = ADCX140_MIC_BIAS_VREF_275V;
930
931 if (vref_source > ADCX140_MIC_BIAS_VREF_1375V) {
932 dev_err(adcx140->dev, "Mic Bias source value is invalid\n");
933 return -EINVAL;
934 }
935
936 bias_cfg = bias_source << ADCX140_MIC_BIAS_SHIFT | vref_source;
937
938 ret = adcx140_reset(adcx140);
939 if (ret)
940 goto out;
941
942 if (adcx140->supply_areg == NULL)
943 sleep_cfg_val |= ADCX140_AREG_INTERNAL;
944
945 ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);
946 if (ret) {
947 dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);
948 goto out;
949 }
950
951 /* 8.4.3: Wait >= 1ms after entering active mode. */
952 usleep_range(1000, 100000);
953
954 pdm_count = device_property_count_u32(adcx140->dev,
955 "ti,pdm-edge-select");
956 if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) {
957 ret = device_property_read_u32_array(adcx140->dev,
958 "ti,pdm-edge-select",
959 pdm_edges, pdm_count);
960 if (ret)
961 return ret;
962
963 for (i = 0; i < pdm_count; i++)
964 pdm_edge_val |= pdm_edges[i] << (ADCX140_PDM_EDGE_SHIFT - i);
965
966 ret = regmap_write(adcx140->regmap, ADCX140_PDM_CFG,
967 pdm_edge_val);
968 if (ret)
969 return ret;
970 }
971
972 gpi_count = device_property_count_u32(adcx140->dev, "ti,gpi-config");
973 if (gpi_count <= ADCX140_NUM_GPI_PINS && gpi_count > 0) {
974 ret = device_property_read_u32_array(adcx140->dev,
975 "ti,gpi-config",
976 gpi_inputs, gpi_count);
977 if (ret)
978 return ret;
979
980 gpi_input_val = gpi_inputs[ADCX140_GPI1_INDEX] << ADCX140_GPI_SHIFT |
981 gpi_inputs[ADCX140_GPI2_INDEX];
982
983 ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG0,
984 gpi_input_val);
985 if (ret)
986 return ret;
987
988 gpi_input_val = gpi_inputs[ADCX140_GPI3_INDEX] << ADCX140_GPI_SHIFT |
989 gpi_inputs[ADCX140_GPI4_INDEX];
990
991 ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG1,
992 gpi_input_val);
993 if (ret)
994 return ret;
995 }
996
997 ret = adcx140_configure_gpio(adcx140);
998 if (ret)
999 return ret;
1000
1001 ret = adcx140_configure_gpo(adcx140);
1002 if (ret)
1003 goto out;
1004
1005 ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG,
1006 ADCX140_MIC_BIAS_VAL_MSK |
1007 ADCX140_MIC_BIAS_VREF_MSK, bias_cfg);
1008 if (ret)
1009 dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret);
1010
1011 tx_high_z = device_property_read_bool(adcx140->dev, "ti,asi-tx-drive");
1012 if (tx_high_z) {
1013 ret = regmap_update_bits(adcx140->regmap, ADCX140_ASI_CFG0,
1014 ADCX140_TX_FILL, ADCX140_TX_FILL);
1015 if (ret) {
1016 dev_err(adcx140->dev, "Setting Tx drive failed %d\n", ret);
1017 goto out;
1018 }
1019 }
1020
1021 adcx140_pwr_ctrl(adcx140, true);
1022 out:
1023 return ret;
1024 }
1025
1026 static int adcx140_set_bias_level(struct snd_soc_component *component,
1027 enum snd_soc_bias_level level)
1028 {
1029 struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
1030
1031 switch (level) {
1032 case SND_SOC_BIAS_ON:
1033 case SND_SOC_BIAS_PREPARE:
1034 case SND_SOC_BIAS_STANDBY:
1035 adcx140_pwr_ctrl(adcx140, true);
1036 break;
1037 case SND_SOC_BIAS_OFF:
1038 adcx140_pwr_ctrl(adcx140, false);
1039 break;
1040 }
1041
1042 return 0;
1043 }
1044
1045 static const struct snd_soc_component_driver soc_codec_driver_adcx140 = {
1046 .probe = adcx140_codec_probe,
1047 .set_bias_level = adcx140_set_bias_level,
1048 .controls = adcx140_snd_controls,
1049 .num_controls = ARRAY_SIZE(adcx140_snd_controls),
1050 .dapm_widgets = adcx140_dapm_widgets,
1051 .num_dapm_widgets = ARRAY_SIZE(adcx140_dapm_widgets),
1052 .dapm_routes = adcx140_audio_map,
1053 .num_dapm_routes = ARRAY_SIZE(adcx140_audio_map),
1054 .suspend_bias_off = 1,
1055 .idle_bias_on = 0,
1056 .use_pmdown_time = 1,
1057 .endianness = 1,
1058 .non_legacy_dai_naming = 1,
1059 };
1060
1061 static struct snd_soc_dai_driver adcx140_dai_driver[] = {
1062 {
1063 .name = "tlv320adcx140-codec",
1064 .capture = {
1065 .stream_name = "Capture",
1066 .channels_min = 2,
1067 .channels_max = ADCX140_MAX_CHANNELS,
1068 .rates = ADCX140_RATES,
1069 .formats = ADCX140_FORMATS,
1070 },
1071 .ops = &adcx140_dai_ops,
1072 .symmetric_rates = 1,
1073 }
1074 };
1075
1076 #ifdef CONFIG_OF
1077 static const struct of_device_id tlv320adcx140_of_match[] = {
1078 { .compatible = "ti,tlv320adc3140" },
1079 { .compatible = "ti,tlv320adc5140" },
1080 { .compatible = "ti,tlv320adc6140" },
1081 {},
1082 };
1083 MODULE_DEVICE_TABLE(of, tlv320adcx140_of_match);
1084 #endif
1085
1086 static int adcx140_i2c_probe(struct i2c_client *i2c,
1087 const struct i2c_device_id *id)
1088 {
1089 struct adcx140_priv *adcx140;
1090 int ret;
1091
1092 adcx140 = devm_kzalloc(&i2c->dev, sizeof(*adcx140), GFP_KERNEL);
1093 if (!adcx140)
1094 return -ENOMEM;
1095
1096 adcx140->dev = &i2c->dev;
1097
1098 adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev,
1099 "reset", GPIOD_OUT_LOW);
1100 if (IS_ERR(adcx140->gpio_reset))
1101 dev_info(&i2c->dev, "Reset GPIO not defined\n");
1102
1103 adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,
1104 "areg");
1105 if (IS_ERR(adcx140->supply_areg)) {
1106 if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER)
1107 return -EPROBE_DEFER;
1108
1109 adcx140->supply_areg = NULL;
1110 } else {
1111 ret = regulator_enable(adcx140->supply_areg);
1112 if (ret) {
1113 dev_err(adcx140->dev, "Failed to enable areg\n");
1114 return ret;
1115 }
1116 }
1117
1118 adcx140->regmap = devm_regmap_init_i2c(i2c, &adcx140_i2c_regmap);
1119 if (IS_ERR(adcx140->regmap)) {
1120 ret = PTR_ERR(adcx140->regmap);
1121 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1122 ret);
1123 return ret;
1124 }
1125
1126 i2c_set_clientdata(i2c, adcx140);
1127
1128 return devm_snd_soc_register_component(&i2c->dev,
1129 &soc_codec_driver_adcx140,
1130 adcx140_dai_driver, 1);
1131 }
1132
1133 static const struct i2c_device_id adcx140_i2c_id[] = {
1134 { "tlv320adc3140", 0 },
1135 { "tlv320adc5140", 1 },
1136 { "tlv320adc6140", 2 },
1137 {}
1138 };
1139 MODULE_DEVICE_TABLE(i2c, adcx140_i2c_id);
1140
1141 static struct i2c_driver adcx140_i2c_driver = {
1142 .driver = {
1143 .name = "tlv320adcx140-codec",
1144 .of_match_table = of_match_ptr(tlv320adcx140_of_match),
1145 },
1146 .probe = adcx140_i2c_probe,
1147 .id_table = adcx140_i2c_id,
1148 };
1149 module_i2c_driver(adcx140_i2c_driver);
1150
1151 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
1152 MODULE_DESCRIPTION("ASoC TLV320ADCX140 CODEC Driver");
1153 MODULE_LICENSE("GPL v2");
Linux with added FPC-III support