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[mirror_ubuntu-zesty-kernel.git] / sound / soc / codecs / cs53l30.c
1 /*
2 * cs53l30.c -- CS53l30 ALSA Soc Audio driver
3 *
4 * Copyright 2015 Cirrus Logic, Inc.
5 *
6 * Authors: Paul Handrigan <Paul.Handrigan@cirrus.com>,
7 * Tim Howe <Tim.Howe@cirrus.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15 #include <linux/clk.h>
16 #include <linux/delay.h>
17 #include <linux/i2c.h>
18 #include <linux/module.h>
19 #include <linux/of_gpio.h>
20 #include <linux/gpio/consumer.h>
21 #include <linux/regulator/consumer.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/tlv.h>
25
26 #include "cs53l30.h"
27
28 #define CS53L30_NUM_SUPPLIES 2
29 static const char *const cs53l30_supply_names[CS53L30_NUM_SUPPLIES] = {
30 "VA",
31 "VP",
32 };
33
34 struct cs53l30_private {
35 struct regulator_bulk_data supplies[CS53L30_NUM_SUPPLIES];
36 struct regmap *regmap;
37 struct gpio_desc *reset_gpio;
38 struct gpio_desc *mute_gpio;
39 struct clk *mclk;
40 bool use_sdout2;
41 u32 mclk_rate;
42 };
43
44 static const struct reg_default cs53l30_reg_defaults[] = {
45 { CS53L30_PWRCTL, CS53L30_PWRCTL_DEFAULT },
46 { CS53L30_MCLKCTL, CS53L30_MCLKCTL_DEFAULT },
47 { CS53L30_INT_SR_CTL, CS53L30_INT_SR_CTL_DEFAULT },
48 { CS53L30_MICBIAS_CTL, CS53L30_MICBIAS_CTL_DEFAULT },
49 { CS53L30_ASPCFG_CTL, CS53L30_ASPCFG_CTL_DEFAULT },
50 { CS53L30_ASP_CTL1, CS53L30_ASP_CTL1_DEFAULT },
51 { CS53L30_ASP_TDMTX_CTL1, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
52 { CS53L30_ASP_TDMTX_CTL2, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
53 { CS53L30_ASP_TDMTX_CTL3, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
54 { CS53L30_ASP_TDMTX_CTL4, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
55 { CS53L30_ASP_TDMTX_EN1, CS53L30_ASP_TDMTX_ENx_DEFAULT },
56 { CS53L30_ASP_TDMTX_EN2, CS53L30_ASP_TDMTX_ENx_DEFAULT },
57 { CS53L30_ASP_TDMTX_EN3, CS53L30_ASP_TDMTX_ENx_DEFAULT },
58 { CS53L30_ASP_TDMTX_EN4, CS53L30_ASP_TDMTX_ENx_DEFAULT },
59 { CS53L30_ASP_TDMTX_EN5, CS53L30_ASP_TDMTX_ENx_DEFAULT },
60 { CS53L30_ASP_TDMTX_EN6, CS53L30_ASP_TDMTX_ENx_DEFAULT },
61 { CS53L30_ASP_CTL2, CS53L30_ASP_CTL2_DEFAULT },
62 { CS53L30_SFT_RAMP, CS53L30_SFT_RMP_DEFAULT },
63 { CS53L30_LRCK_CTL1, CS53L30_LRCK_CTLx_DEFAULT },
64 { CS53L30_LRCK_CTL2, CS53L30_LRCK_CTLx_DEFAULT },
65 { CS53L30_MUTEP_CTL1, CS53L30_MUTEP_CTL1_DEFAULT },
66 { CS53L30_MUTEP_CTL2, CS53L30_MUTEP_CTL2_DEFAULT },
67 { CS53L30_INBIAS_CTL1, CS53L30_INBIAS_CTL1_DEFAULT },
68 { CS53L30_INBIAS_CTL2, CS53L30_INBIAS_CTL2_DEFAULT },
69 { CS53L30_DMIC1_STR_CTL, CS53L30_DMIC1_STR_CTL_DEFAULT },
70 { CS53L30_DMIC2_STR_CTL, CS53L30_DMIC2_STR_CTL_DEFAULT },
71 { CS53L30_ADCDMIC1_CTL1, CS53L30_ADCDMICx_CTL1_DEFAULT },
72 { CS53L30_ADCDMIC1_CTL2, CS53L30_ADCDMIC1_CTL2_DEFAULT },
73 { CS53L30_ADC1_CTL3, CS53L30_ADCx_CTL3_DEFAULT },
74 { CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_CTL_DEFAULT },
75 { CS53L30_ADC1A_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
76 { CS53L30_ADC1B_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
77 { CS53L30_ADC1A_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
78 { CS53L30_ADC1B_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
79 { CS53L30_ADCDMIC2_CTL1, CS53L30_ADCDMICx_CTL1_DEFAULT },
80 { CS53L30_ADCDMIC2_CTL2, CS53L30_ADCDMIC1_CTL2_DEFAULT },
81 { CS53L30_ADC2_CTL3, CS53L30_ADCx_CTL3_DEFAULT },
82 { CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_CTL_DEFAULT },
83 { CS53L30_ADC2A_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
84 { CS53L30_ADC2B_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
85 { CS53L30_ADC2A_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
86 { CS53L30_ADC2B_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
87 { CS53L30_INT_MASK, CS53L30_DEVICE_INT_MASK },
88 };
89
90 static bool cs53l30_volatile_register(struct device *dev, unsigned int reg)
91 {
92 if (reg == CS53L30_IS)
93 return true;
94 else
95 return false;
96 }
97
98 static bool cs53l30_writeable_register(struct device *dev, unsigned int reg)
99 {
100 switch (reg) {
101 case CS53L30_DEVID_AB:
102 case CS53L30_DEVID_CD:
103 case CS53L30_DEVID_E:
104 case CS53L30_REVID:
105 case CS53L30_IS:
106 return false;
107 default:
108 return true;
109 }
110 }
111
112 static bool cs53l30_readable_register(struct device *dev, unsigned int reg)
113 {
114 switch (reg) {
115 case CS53L30_DEVID_AB:
116 case CS53L30_DEVID_CD:
117 case CS53L30_DEVID_E:
118 case CS53L30_REVID:
119 case CS53L30_PWRCTL:
120 case CS53L30_MCLKCTL:
121 case CS53L30_INT_SR_CTL:
122 case CS53L30_MICBIAS_CTL:
123 case CS53L30_ASPCFG_CTL:
124 case CS53L30_ASP_CTL1:
125 case CS53L30_ASP_TDMTX_CTL1:
126 case CS53L30_ASP_TDMTX_CTL2:
127 case CS53L30_ASP_TDMTX_CTL3:
128 case CS53L30_ASP_TDMTX_CTL4:
129 case CS53L30_ASP_TDMTX_EN1:
130 case CS53L30_ASP_TDMTX_EN2:
131 case CS53L30_ASP_TDMTX_EN3:
132 case CS53L30_ASP_TDMTX_EN4:
133 case CS53L30_ASP_TDMTX_EN5:
134 case CS53L30_ASP_TDMTX_EN6:
135 case CS53L30_ASP_CTL2:
136 case CS53L30_SFT_RAMP:
137 case CS53L30_LRCK_CTL1:
138 case CS53L30_LRCK_CTL2:
139 case CS53L30_MUTEP_CTL1:
140 case CS53L30_MUTEP_CTL2:
141 case CS53L30_INBIAS_CTL1:
142 case CS53L30_INBIAS_CTL2:
143 case CS53L30_DMIC1_STR_CTL:
144 case CS53L30_DMIC2_STR_CTL:
145 case CS53L30_ADCDMIC1_CTL1:
146 case CS53L30_ADCDMIC1_CTL2:
147 case CS53L30_ADC1_CTL3:
148 case CS53L30_ADC1_NG_CTL:
149 case CS53L30_ADC1A_AFE_CTL:
150 case CS53L30_ADC1B_AFE_CTL:
151 case CS53L30_ADC1A_DIG_VOL:
152 case CS53L30_ADC1B_DIG_VOL:
153 case CS53L30_ADCDMIC2_CTL1:
154 case CS53L30_ADCDMIC2_CTL2:
155 case CS53L30_ADC2_CTL3:
156 case CS53L30_ADC2_NG_CTL:
157 case CS53L30_ADC2A_AFE_CTL:
158 case CS53L30_ADC2B_AFE_CTL:
159 case CS53L30_ADC2A_DIG_VOL:
160 case CS53L30_ADC2B_DIG_VOL:
161 case CS53L30_INT_MASK:
162 return true;
163 default:
164 return false;
165 }
166 }
167
168 static DECLARE_TLV_DB_SCALE(adc_boost_tlv, 0, 2000, 0);
169 static DECLARE_TLV_DB_SCALE(adc_ng_boost_tlv, 0, 3000, 0);
170 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0);
171 static DECLARE_TLV_DB_SCALE(dig_tlv, -9600, 100, 1);
172 static DECLARE_TLV_DB_SCALE(pga_preamp_tlv, 0, 10000, 0);
173
174 static const char * const input1_sel_text[] = {
175 "DMIC1 On AB In",
176 "DMIC1 On A In",
177 "DMIC1 On B In",
178 "ADC1 On AB In",
179 "ADC1 On A In",
180 "ADC1 On B In",
181 "DMIC1 Off ADC1 Off",
182 };
183
184 static unsigned int const input1_sel_values[] = {
185 CS53L30_CH_TYPE,
186 CS53L30_ADCxB_PDN | CS53L30_CH_TYPE,
187 CS53L30_ADCxA_PDN | CS53L30_CH_TYPE,
188 CS53L30_DMICx_PDN,
189 CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
190 CS53L30_ADCxA_PDN | CS53L30_DMICx_PDN,
191 CS53L30_ADCxA_PDN | CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
192 };
193
194 static const char * const input2_sel_text[] = {
195 "DMIC2 On AB In",
196 "DMIC2 On A In",
197 "DMIC2 On B In",
198 "ADC2 On AB In",
199 "ADC2 On A In",
200 "ADC2 On B In",
201 "DMIC2 Off ADC2 Off",
202 };
203
204 static unsigned int const input2_sel_values[] = {
205 0x0,
206 CS53L30_ADCxB_PDN,
207 CS53L30_ADCxA_PDN,
208 CS53L30_DMICx_PDN,
209 CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
210 CS53L30_ADCxA_PDN | CS53L30_DMICx_PDN,
211 CS53L30_ADCxA_PDN | CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
212 };
213
214 static const char * const input1_route_sel_text[] = {
215 "ADC1_SEL", "DMIC1_SEL",
216 };
217
218 static const struct soc_enum input1_route_sel_enum =
219 SOC_ENUM_SINGLE(CS53L30_ADCDMIC1_CTL1, CS53L30_CH_TYPE_SHIFT,
220 ARRAY_SIZE(input1_route_sel_text),
221 input1_route_sel_text);
222
223 static SOC_VALUE_ENUM_SINGLE_DECL(input1_sel_enum, CS53L30_ADCDMIC1_CTL1, 0,
224 CS53L30_ADCDMICx_PDN_MASK, input1_sel_text,
225 input1_sel_values);
226
227 static const struct snd_kcontrol_new input1_route_sel_mux =
228 SOC_DAPM_ENUM("Input 1 Route", input1_route_sel_enum);
229
230 static const char * const input2_route_sel_text[] = {
231 "ADC2_SEL", "DMIC2_SEL",
232 };
233
234 /* Note: CS53L30_ADCDMIC1_CTL1 CH_TYPE controls inputs 1 and 2 */
235 static const struct soc_enum input2_route_sel_enum =
236 SOC_ENUM_SINGLE(CS53L30_ADCDMIC1_CTL1, 0,
237 ARRAY_SIZE(input2_route_sel_text),
238 input2_route_sel_text);
239
240 static SOC_VALUE_ENUM_SINGLE_DECL(input2_sel_enum, CS53L30_ADCDMIC2_CTL1, 0,
241 CS53L30_ADCDMICx_PDN_MASK, input2_sel_text,
242 input2_sel_values);
243
244 static const struct snd_kcontrol_new input2_route_sel_mux =
245 SOC_DAPM_ENUM("Input 2 Route", input2_route_sel_enum);
246
247 /*
248 * TB = 6144*(MCLK(int) scaling factor)/MCLK(internal)
249 * TB - Time base
250 * NOTE: If MCLK_INT_SCALE = 0, then TB=1
251 */
252 static const char * const cs53l30_ng_delay_text[] = {
253 "TB*50ms", "TB*100ms", "TB*150ms", "TB*200ms",
254 };
255
256 static const struct soc_enum adc1_ng_delay_enum =
257 SOC_ENUM_SINGLE(CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_DELAY_SHIFT,
258 ARRAY_SIZE(cs53l30_ng_delay_text),
259 cs53l30_ng_delay_text);
260
261 static const struct soc_enum adc2_ng_delay_enum =
262 SOC_ENUM_SINGLE(CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_DELAY_SHIFT,
263 ARRAY_SIZE(cs53l30_ng_delay_text),
264 cs53l30_ng_delay_text);
265
266 /* The noise gate threshold selected will depend on NG Boost */
267 static const char * const cs53l30_ng_thres_text[] = {
268 "-64dB/-34dB", "-66dB/-36dB", "-70dB/-40dB", "-73dB/-43dB",
269 "-76dB/-46dB", "-82dB/-52dB", "-58dB", "-64dB",
270 };
271
272 static const struct soc_enum adc1_ng_thres_enum =
273 SOC_ENUM_SINGLE(CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_THRESH_SHIFT,
274 ARRAY_SIZE(cs53l30_ng_thres_text),
275 cs53l30_ng_thres_text);
276
277 static const struct soc_enum adc2_ng_thres_enum =
278 SOC_ENUM_SINGLE(CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_THRESH_SHIFT,
279 ARRAY_SIZE(cs53l30_ng_thres_text),
280 cs53l30_ng_thres_text);
281
282 /* Corner frequencies are with an Fs of 48kHz. */
283 static const char * const hpf_corner_freq_text[] = {
284 "1.86Hz", "120Hz", "235Hz", "466Hz",
285 };
286
287 static const struct soc_enum adc1_hpf_enum =
288 SOC_ENUM_SINGLE(CS53L30_ADC1_CTL3, CS53L30_ADCx_HPF_CF_SHIFT,
289 ARRAY_SIZE(hpf_corner_freq_text), hpf_corner_freq_text);
290
291 static const struct soc_enum adc2_hpf_enum =
292 SOC_ENUM_SINGLE(CS53L30_ADC2_CTL3, CS53L30_ADCx_HPF_CF_SHIFT,
293 ARRAY_SIZE(hpf_corner_freq_text), hpf_corner_freq_text);
294
295 static const struct snd_kcontrol_new cs53l30_snd_controls[] = {
296 SOC_SINGLE("Digital Soft-Ramp Switch", CS53L30_SFT_RAMP,
297 CS53L30_DIGSFT_SHIFT, 1, 0),
298 SOC_SINGLE("ADC1 Noise Gate Ganging Switch", CS53L30_ADC1_CTL3,
299 CS53L30_ADCx_NG_ALL_SHIFT, 1, 0),
300 SOC_SINGLE("ADC2 Noise Gate Ganging Switch", CS53L30_ADC2_CTL3,
301 CS53L30_ADCx_NG_ALL_SHIFT, 1, 0),
302 SOC_SINGLE("ADC1A Noise Gate Enable Switch", CS53L30_ADC1_NG_CTL,
303 CS53L30_ADCxA_NG_SHIFT, 1, 0),
304 SOC_SINGLE("ADC1B Noise Gate Enable Switch", CS53L30_ADC1_NG_CTL,
305 CS53L30_ADCxB_NG_SHIFT, 1, 0),
306 SOC_SINGLE("ADC2A Noise Gate Enable Switch", CS53L30_ADC2_NG_CTL,
307 CS53L30_ADCxA_NG_SHIFT, 1, 0),
308 SOC_SINGLE("ADC2B Noise Gate Enable Switch", CS53L30_ADC2_NG_CTL,
309 CS53L30_ADCxB_NG_SHIFT, 1, 0),
310 SOC_SINGLE("ADC1 Notch Filter Switch", CS53L30_ADCDMIC1_CTL2,
311 CS53L30_ADCx_NOTCH_DIS_SHIFT, 1, 1),
312 SOC_SINGLE("ADC2 Notch Filter Switch", CS53L30_ADCDMIC2_CTL2,
313 CS53L30_ADCx_NOTCH_DIS_SHIFT, 1, 1),
314 SOC_SINGLE("ADC1A Invert Switch", CS53L30_ADCDMIC1_CTL2,
315 CS53L30_ADCxA_INV_SHIFT, 1, 0),
316 SOC_SINGLE("ADC1B Invert Switch", CS53L30_ADCDMIC1_CTL2,
317 CS53L30_ADCxB_INV_SHIFT, 1, 0),
318 SOC_SINGLE("ADC2A Invert Switch", CS53L30_ADCDMIC2_CTL2,
319 CS53L30_ADCxA_INV_SHIFT, 1, 0),
320 SOC_SINGLE("ADC2B Invert Switch", CS53L30_ADCDMIC2_CTL2,
321 CS53L30_ADCxB_INV_SHIFT, 1, 0),
322
323 SOC_SINGLE_TLV("ADC1A Digital Boost Volume", CS53L30_ADCDMIC1_CTL2,
324 CS53L30_ADCxA_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
325 SOC_SINGLE_TLV("ADC1B Digital Boost Volume", CS53L30_ADCDMIC1_CTL2,
326 CS53L30_ADCxB_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
327 SOC_SINGLE_TLV("ADC2A Digital Boost Volume", CS53L30_ADCDMIC2_CTL2,
328 CS53L30_ADCxA_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
329 SOC_SINGLE_TLV("ADC2B Digital Boost Volume", CS53L30_ADCDMIC2_CTL2,
330 CS53L30_ADCxB_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
331 SOC_SINGLE_TLV("ADC1 NG Boost Volume", CS53L30_ADC1_NG_CTL,
332 CS53L30_ADCx_NG_BOOST_SHIFT, 1, 0, adc_ng_boost_tlv),
333 SOC_SINGLE_TLV("ADC2 NG Boost Volume", CS53L30_ADC2_NG_CTL,
334 CS53L30_ADCx_NG_BOOST_SHIFT, 1, 0, adc_ng_boost_tlv),
335
336 SOC_DOUBLE_R_TLV("ADC1 Preamplifier Volume", CS53L30_ADC1A_AFE_CTL,
337 CS53L30_ADC1B_AFE_CTL, CS53L30_ADCxy_PREAMP_SHIFT,
338 2, 0, pga_preamp_tlv),
339 SOC_DOUBLE_R_TLV("ADC2 Preamplifier Volume", CS53L30_ADC2A_AFE_CTL,
340 CS53L30_ADC2B_AFE_CTL, CS53L30_ADCxy_PREAMP_SHIFT,
341 2, 0, pga_preamp_tlv),
342
343 SOC_ENUM("Input 1 Channel Select", input1_sel_enum),
344 SOC_ENUM("Input 2 Channel Select", input2_sel_enum),
345
346 SOC_ENUM("ADC1 HPF Select", adc1_hpf_enum),
347 SOC_ENUM("ADC2 HPF Select", adc2_hpf_enum),
348 SOC_ENUM("ADC1 NG Threshold", adc1_ng_thres_enum),
349 SOC_ENUM("ADC2 NG Threshold", adc2_ng_thres_enum),
350 SOC_ENUM("ADC1 NG Delay", adc1_ng_delay_enum),
351 SOC_ENUM("ADC2 NG Delay", adc2_ng_delay_enum),
352
353 SOC_SINGLE_SX_TLV("ADC1A PGA Volume",
354 CS53L30_ADC1A_AFE_CTL, 0, 0x34, 0x18, pga_tlv),
355 SOC_SINGLE_SX_TLV("ADC1B PGA Volume",
356 CS53L30_ADC1B_AFE_CTL, 0, 0x34, 0x18, pga_tlv),
357 SOC_SINGLE_SX_TLV("ADC2A PGA Volume",
358 CS53L30_ADC2A_AFE_CTL, 0, 0x34, 0x18, pga_tlv),
359 SOC_SINGLE_SX_TLV("ADC2B PGA Volume",
360 CS53L30_ADC2B_AFE_CTL, 0, 0x34, 0x18, pga_tlv),
361
362 SOC_SINGLE_SX_TLV("ADC1A Digital Volume",
363 CS53L30_ADC1A_DIG_VOL, 0, 0xA0, 0x0C, dig_tlv),
364 SOC_SINGLE_SX_TLV("ADC1B Digital Volume",
365 CS53L30_ADC1B_DIG_VOL, 0, 0xA0, 0x0C, dig_tlv),
366 SOC_SINGLE_SX_TLV("ADC2A Digital Volume",
367 CS53L30_ADC2A_DIG_VOL, 0, 0xA0, 0x0C, dig_tlv),
368 SOC_SINGLE_SX_TLV("ADC2B Digital Volume",
369 CS53L30_ADC2B_DIG_VOL, 0, 0xA0, 0x0C, dig_tlv),
370 };
371
372 static const struct snd_soc_dapm_widget cs53l30_dapm_widgets[] = {
373 SND_SOC_DAPM_INPUT("IN1_DMIC1"),
374 SND_SOC_DAPM_INPUT("IN2"),
375 SND_SOC_DAPM_INPUT("IN3_DMIC2"),
376 SND_SOC_DAPM_INPUT("IN4"),
377 SND_SOC_DAPM_SUPPLY("MIC1 Bias", CS53L30_MICBIAS_CTL,
378 CS53L30_MIC1_BIAS_PDN_SHIFT, 1, NULL, 0),
379 SND_SOC_DAPM_SUPPLY("MIC2 Bias", CS53L30_MICBIAS_CTL,
380 CS53L30_MIC2_BIAS_PDN_SHIFT, 1, NULL, 0),
381 SND_SOC_DAPM_SUPPLY("MIC3 Bias", CS53L30_MICBIAS_CTL,
382 CS53L30_MIC3_BIAS_PDN_SHIFT, 1, NULL, 0),
383 SND_SOC_DAPM_SUPPLY("MIC4 Bias", CS53L30_MICBIAS_CTL,
384 CS53L30_MIC4_BIAS_PDN_SHIFT, 1, NULL, 0),
385
386 SND_SOC_DAPM_AIF_OUT("ASP_SDOUT1", NULL, 0, CS53L30_ASP_CTL1,
387 CS53L30_ASP_SDOUTx_PDN_SHIFT, 1),
388 SND_SOC_DAPM_AIF_OUT("ASP_SDOUT2", NULL, 0, CS53L30_ASP_CTL2,
389 CS53L30_ASP_SDOUTx_PDN_SHIFT, 1),
390
391 SND_SOC_DAPM_MUX("Input Mux 1", SND_SOC_NOPM, 0, 0,
392 &input1_route_sel_mux),
393 SND_SOC_DAPM_MUX("Input Mux 2", SND_SOC_NOPM, 0, 0,
394 &input2_route_sel_mux),
395
396 SND_SOC_DAPM_ADC("ADC1A", NULL, CS53L30_ADCDMIC1_CTL1,
397 CS53L30_ADCxA_PDN_SHIFT, 1),
398 SND_SOC_DAPM_ADC("ADC1B", NULL, CS53L30_ADCDMIC1_CTL1,
399 CS53L30_ADCxB_PDN_SHIFT, 1),
400 SND_SOC_DAPM_ADC("ADC2A", NULL, CS53L30_ADCDMIC2_CTL1,
401 CS53L30_ADCxA_PDN_SHIFT, 1),
402 SND_SOC_DAPM_ADC("ADC2B", NULL, CS53L30_ADCDMIC2_CTL1,
403 CS53L30_ADCxB_PDN_SHIFT, 1),
404 SND_SOC_DAPM_ADC("DMIC1", NULL, CS53L30_ADCDMIC1_CTL1,
405 CS53L30_DMICx_PDN_SHIFT, 1),
406 SND_SOC_DAPM_ADC("DMIC2", NULL, CS53L30_ADCDMIC2_CTL1,
407 CS53L30_DMICx_PDN_SHIFT, 1),
408 };
409
410 static const struct snd_soc_dapm_route cs53l30_dapm_routes[] = {
411 /* ADC Input Paths */
412 {"ADC1A", NULL, "IN1_DMIC1"},
413 {"Input Mux 1", "ADC1_SEL", "ADC1A"},
414 {"ADC1B", NULL, "IN2"},
415
416 {"ADC2A", NULL, "IN3_DMIC2"},
417 {"Input Mux 2", "ADC2_SEL", "ADC2A"},
418 {"ADC2B", NULL, "IN4"},
419
420 /* MIC Bias Paths */
421 {"ADC1A", NULL, "MIC1 Bias"},
422 {"ADC1B", NULL, "MIC2 Bias"},
423 {"ADC2A", NULL, "MIC3 Bias"},
424 {"ADC2B", NULL, "MIC4 Bias"},
425
426 /* DMIC Paths */
427 {"DMIC1", NULL, "IN1_DMIC1"},
428 {"Input Mux 1", "DMIC1_SEL", "DMIC1"},
429
430 {"DMIC2", NULL, "IN3_DMIC2"},
431 {"Input Mux 2", "DMIC2_SEL", "DMIC2"},
432 };
433
434 static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout1[] = {
435 /* Output Paths when using SDOUT1 only */
436 {"ASP_SDOUT1", NULL, "ADC1A" },
437 {"ASP_SDOUT1", NULL, "Input Mux 1"},
438 {"ASP_SDOUT1", NULL, "ADC1B"},
439
440 {"ASP_SDOUT1", NULL, "ADC2A"},
441 {"ASP_SDOUT1", NULL, "Input Mux 2"},
442 {"ASP_SDOUT1", NULL, "ADC2B"},
443
444 {"Capture", NULL, "ASP_SDOUT1"},
445 };
446
447 static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout2[] = {
448 /* Output Paths when using both SDOUT1 and SDOUT2 */
449 {"ASP_SDOUT1", NULL, "ADC1A" },
450 {"ASP_SDOUT1", NULL, "Input Mux 1"},
451 {"ASP_SDOUT1", NULL, "ADC1B"},
452
453 {"ASP_SDOUT2", NULL, "ADC2A"},
454 {"ASP_SDOUT2", NULL, "Input Mux 2"},
455 {"ASP_SDOUT2", NULL, "ADC2B"},
456
457 {"Capture", NULL, "ASP_SDOUT1"},
458 {"Capture", NULL, "ASP_SDOUT2"},
459 };
460
461 struct cs53l30_mclk_div {
462 u32 mclk_rate;
463 u32 srate;
464 u8 asp_rate;
465 u8 internal_fs_ratio;
466 u8 mclk_int_scale;
467 };
468
469 static const struct cs53l30_mclk_div cs53l30_mclk_coeffs[] = {
470 /* NOTE: Enable MCLK_INT_SCALE to save power. */
471
472 /* MCLK, Sample Rate, asp_rate, internal_fs_ratio, mclk_int_scale */
473 {5644800, 11025, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
474 {5644800, 22050, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
475 {5644800, 44100, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
476
477 {6000000, 8000, 0x1, 0, CS53L30_MCLK_INT_SCALE},
478 {6000000, 11025, 0x2, 0, CS53L30_MCLK_INT_SCALE},
479 {6000000, 12000, 0x4, 0, CS53L30_MCLK_INT_SCALE},
480 {6000000, 16000, 0x5, 0, CS53L30_MCLK_INT_SCALE},
481 {6000000, 22050, 0x6, 0, CS53L30_MCLK_INT_SCALE},
482 {6000000, 24000, 0x8, 0, CS53L30_MCLK_INT_SCALE},
483 {6000000, 32000, 0x9, 0, CS53L30_MCLK_INT_SCALE},
484 {6000000, 44100, 0xA, 0, CS53L30_MCLK_INT_SCALE},
485 {6000000, 48000, 0xC, 0, CS53L30_MCLK_INT_SCALE},
486
487 {6144000, 8000, 0x1, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
488 {6144000, 11025, 0x2, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
489 {6144000, 12000, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
490 {6144000, 16000, 0x5, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
491 {6144000, 22050, 0x6, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
492 {6144000, 24000, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
493 {6144000, 32000, 0x9, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
494 {6144000, 44100, 0xA, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
495 {6144000, 48000, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
496
497 {6400000, 8000, 0x1, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
498 {6400000, 11025, 0x2, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
499 {6400000, 12000, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
500 {6400000, 16000, 0x5, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
501 {6400000, 22050, 0x6, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
502 {6400000, 24000, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
503 {6400000, 32000, 0x9, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
504 {6400000, 44100, 0xA, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
505 {6400000, 48000, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
506 };
507
508 struct cs53l30_mclkx_div {
509 u32 mclkx;
510 u8 ratio;
511 u8 mclkdiv;
512 };
513
514 static const struct cs53l30_mclkx_div cs53l30_mclkx_coeffs[] = {
515 {5644800, 1, CS53L30_MCLK_DIV_BY_1},
516 {6000000, 1, CS53L30_MCLK_DIV_BY_1},
517 {6144000, 1, CS53L30_MCLK_DIV_BY_1},
518 {11289600, 2, CS53L30_MCLK_DIV_BY_2},
519 {12288000, 2, CS53L30_MCLK_DIV_BY_2},
520 {12000000, 2, CS53L30_MCLK_DIV_BY_2},
521 {19200000, 3, CS53L30_MCLK_DIV_BY_3},
522 };
523
524 static int cs53l30_get_mclkx_coeff(int mclkx)
525 {
526 int i;
527
528 for (i = 0; i < ARRAY_SIZE(cs53l30_mclkx_coeffs); i++) {
529 if (cs53l30_mclkx_coeffs[i].mclkx == mclkx)
530 return i;
531 }
532
533 return -EINVAL;
534 }
535
536 static int cs53l30_get_mclk_coeff(int mclk_rate, int srate)
537 {
538 int i;
539
540 for (i = 0; i < ARRAY_SIZE(cs53l30_mclk_coeffs); i++) {
541 if (cs53l30_mclk_coeffs[i].mclk_rate == mclk_rate &&
542 cs53l30_mclk_coeffs[i].srate == srate)
543 return i;
544 }
545
546 return -EINVAL;
547 }
548
549 static int cs53l30_set_sysclk(struct snd_soc_dai *dai,
550 int clk_id, unsigned int freq, int dir)
551 {
552 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
553 int mclkx_coeff;
554 u32 mclk_rate;
555
556 /* MCLKX -> MCLK */
557 mclkx_coeff = cs53l30_get_mclkx_coeff(freq);
558 if (mclkx_coeff < 0)
559 return mclkx_coeff;
560
561 mclk_rate = cs53l30_mclkx_coeffs[mclkx_coeff].mclkx /
562 cs53l30_mclkx_coeffs[mclkx_coeff].ratio;
563
564 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
565 CS53L30_MCLK_DIV_MASK,
566 cs53l30_mclkx_coeffs[mclkx_coeff].mclkdiv);
567
568 priv->mclk_rate = mclk_rate;
569
570 return 0;
571 }
572
573 static int cs53l30_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
574 {
575 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
576 u8 aspcfg = 0, aspctl1 = 0;
577
578 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
579 case SND_SOC_DAIFMT_CBM_CFM:
580 aspcfg |= CS53L30_ASP_MS;
581 break;
582 case SND_SOC_DAIFMT_CBS_CFS:
583 break;
584 default:
585 return -EINVAL;
586 }
587
588 /* DAI mode */
589 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
590 case SND_SOC_DAIFMT_I2S:
591 /* Set TDM_PDN to turn off TDM mode -- Reset default */
592 aspctl1 |= CS53L30_ASP_TDM_PDN;
593 break;
594 case SND_SOC_DAIFMT_DSP_A:
595 /*
596 * Clear TDM_PDN to turn on TDM mode; Use ASP_SCLK_INV = 0
597 * with SHIFT_LEFT = 1 combination as Figure 4-13 shows in
598 * the CS53L30 datasheet
599 */
600 aspctl1 |= CS53L30_SHIFT_LEFT;
601 break;
602 default:
603 return -EINVAL;
604 }
605
606 /* Check to see if the SCLK is inverted */
607 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
608 case SND_SOC_DAIFMT_IB_NF:
609 case SND_SOC_DAIFMT_IB_IF:
610 aspcfg ^= CS53L30_ASP_SCLK_INV;
611 break;
612 default:
613 break;
614 }
615
616 regmap_update_bits(priv->regmap, CS53L30_ASPCFG_CTL,
617 CS53L30_ASP_MS | CS53L30_ASP_SCLK_INV, aspcfg);
618
619 regmap_update_bits(priv->regmap, CS53L30_ASP_CTL1,
620 CS53L30_ASP_TDM_PDN | CS53L30_SHIFT_LEFT, aspctl1);
621
622 return 0;
623 }
624
625 static int cs53l30_pcm_hw_params(struct snd_pcm_substream *substream,
626 struct snd_pcm_hw_params *params,
627 struct snd_soc_dai *dai)
628 {
629 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
630 int srate = params_rate(params);
631 int mclk_coeff;
632
633 /* MCLK -> srate */
634 mclk_coeff = cs53l30_get_mclk_coeff(priv->mclk_rate, srate);
635 if (mclk_coeff < 0)
636 return -EINVAL;
637
638 regmap_update_bits(priv->regmap, CS53L30_INT_SR_CTL,
639 CS53L30_INTRNL_FS_RATIO_MASK,
640 cs53l30_mclk_coeffs[mclk_coeff].internal_fs_ratio);
641
642 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
643 CS53L30_MCLK_INT_SCALE_MASK,
644 cs53l30_mclk_coeffs[mclk_coeff].mclk_int_scale);
645
646 regmap_update_bits(priv->regmap, CS53L30_ASPCFG_CTL,
647 CS53L30_ASP_RATE_MASK,
648 cs53l30_mclk_coeffs[mclk_coeff].asp_rate);
649
650 return 0;
651 }
652
653 static int cs53l30_set_bias_level(struct snd_soc_codec *codec,
654 enum snd_soc_bias_level level)
655 {
656 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
657 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(codec);
658 unsigned int reg;
659 int i, inter_max_check, ret;
660
661 switch (level) {
662 case SND_SOC_BIAS_ON:
663 break;
664 case SND_SOC_BIAS_PREPARE:
665 if (dapm->bias_level == SND_SOC_BIAS_STANDBY)
666 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
667 CS53L30_PDN_LP_MASK, 0);
668 break;
669 case SND_SOC_BIAS_STANDBY:
670 if (dapm->bias_level == SND_SOC_BIAS_OFF) {
671 ret = clk_prepare_enable(priv->mclk);
672 if (ret) {
673 dev_err(codec->dev,
674 "failed to enable MCLK: %d\n", ret);
675 return ret;
676 }
677 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
678 CS53L30_MCLK_DIS_MASK, 0);
679 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
680 CS53L30_PDN_ULP_MASK, 0);
681 msleep(50);
682 } else {
683 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
684 CS53L30_PDN_ULP_MASK,
685 CS53L30_PDN_ULP);
686 }
687 break;
688 case SND_SOC_BIAS_OFF:
689 regmap_update_bits(priv->regmap, CS53L30_INT_MASK,
690 CS53L30_PDN_DONE, 0);
691 /*
692 * If digital softramp is set, the amount of time required
693 * for power down increases and depends on the digital
694 * volume setting.
695 */
696
697 /* Set the max possible time if digsft is set */
698 regmap_read(priv->regmap, CS53L30_SFT_RAMP, &reg);
699 if (reg & CS53L30_DIGSFT_MASK)
700 inter_max_check = CS53L30_PDN_POLL_MAX;
701 else
702 inter_max_check = 10;
703
704 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
705 CS53L30_PDN_ULP_MASK,
706 CS53L30_PDN_ULP);
707 /* PDN_DONE will take a min of 20ms to be set.*/
708 msleep(20);
709 /* Clr status */
710 regmap_read(priv->regmap, CS53L30_IS, &reg);
711 for (i = 0; i < inter_max_check; i++) {
712 if (inter_max_check < 10) {
713 usleep_range(1000, 1100);
714 regmap_read(priv->regmap, CS53L30_IS, &reg);
715 if (reg & CS53L30_PDN_DONE)
716 break;
717 } else {
718 usleep_range(10000, 10100);
719 regmap_read(priv->regmap, CS53L30_IS, &reg);
720 if (reg & CS53L30_PDN_DONE)
721 break;
722 }
723 }
724 /* PDN_DONE is set. We now can disable the MCLK */
725 regmap_update_bits(priv->regmap, CS53L30_INT_MASK,
726 CS53L30_PDN_DONE, CS53L30_PDN_DONE);
727 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
728 CS53L30_MCLK_DIS_MASK,
729 CS53L30_MCLK_DIS);
730 clk_disable_unprepare(priv->mclk);
731 break;
732 }
733
734 return 0;
735 }
736
737 static int cs53l30_set_tristate(struct snd_soc_dai *dai, int tristate)
738 {
739 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
740 u8 val = tristate ? CS53L30_ASP_3ST : 0;
741
742 return regmap_update_bits(priv->regmap, CS53L30_ASP_CTL1,
743 CS53L30_ASP_3ST_MASK, val);
744 }
745
746 static unsigned int const cs53l30_src_rates[] = {
747 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
748 };
749
750 static struct snd_pcm_hw_constraint_list src_constraints = {
751 .count = ARRAY_SIZE(cs53l30_src_rates),
752 .list = cs53l30_src_rates,
753 };
754
755 static int cs53l30_pcm_startup(struct snd_pcm_substream *substream,
756 struct snd_soc_dai *dai)
757 {
758 snd_pcm_hw_constraint_list(substream->runtime, 0,
759 SNDRV_PCM_HW_PARAM_RATE, &src_constraints);
760
761 return 0;
762 }
763
764 /*
765 * Note: CS53L30 counts the slot number per byte while ASoC counts the slot
766 * number per slot_width. So there is a difference between the slots of ASoC
767 * and the slots of CS53L30.
768 */
769 static int cs53l30_set_dai_tdm_slot(struct snd_soc_dai *dai,
770 unsigned int tx_mask, unsigned int rx_mask,
771 int slots, int slot_width)
772 {
773 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
774 unsigned int loc[CS53L30_TDM_SLOT_MAX] = {48, 48, 48, 48};
775 unsigned int slot_next, slot_step;
776 u64 tx_enable = 0;
777 int i;
778
779 if (!rx_mask) {
780 dev_err(dai->dev, "rx masks must not be 0\n");
781 return -EINVAL;
782 }
783
784 /* Assuming slot_width is not supposed to be greater than 64 */
785 if (slots <= 0 || slot_width <= 0 || slot_width > 64) {
786 dev_err(dai->dev, "invalid slot number or slot width\n");
787 return -EINVAL;
788 }
789
790 if (slot_width & 0x7) {
791 dev_err(dai->dev, "slot width must count in byte\n");
792 return -EINVAL;
793 }
794
795 /* How many bytes in each ASoC slot */
796 slot_step = slot_width >> 3;
797
798 for (i = 0; rx_mask && i < CS53L30_TDM_SLOT_MAX; i++) {
799 /* Find the first slot from LSB */
800 slot_next = __ffs(rx_mask);
801 /* Save the slot location by converting to CS53L30 slot */
802 loc[i] = slot_next * slot_step;
803 /* Create the mask of CS53L30 slot */
804 tx_enable |= (u64)((u64)(1 << slot_step) - 1) << (u64)loc[i];
805 /* Clear this slot from rx_mask */
806 rx_mask &= ~(1 << slot_next);
807 }
808
809 /* Error out to avoid slot shift */
810 if (rx_mask && i == CS53L30_TDM_SLOT_MAX) {
811 dev_err(dai->dev, "rx_mask exceeds max slot number: %d\n",
812 CS53L30_TDM_SLOT_MAX);
813 return -EINVAL;
814 }
815
816 /* Validate the last active CS53L30 slot */
817 slot_next = loc[i - 1] + slot_step - 1;
818 if (slot_next > 47) {
819 dev_err(dai->dev, "slot selection out of bounds: %u\n",
820 slot_next);
821 return -EINVAL;
822 }
823
824 for (i = 0; i < CS53L30_TDM_SLOT_MAX && loc[i] != 48; i++) {
825 regmap_update_bits(priv->regmap, CS53L30_ASP_TDMTX_CTL(i),
826 CS53L30_ASP_CHx_TX_LOC_MASK, loc[i]);
827 dev_dbg(dai->dev, "loc[%d]=%x\n", i, loc[i]);
828 }
829
830 for (i = 0; i < CS53L30_ASP_TDMTX_ENx_MAX && tx_enable; i++) {
831 regmap_write(priv->regmap, CS53L30_ASP_TDMTX_ENx(i),
832 tx_enable & 0xff);
833 tx_enable >>= 8;
834 dev_dbg(dai->dev, "en_reg=%x, tx_enable=%llx\n",
835 CS53L30_ASP_TDMTX_ENx(i), tx_enable & 0xff);
836 }
837
838 return 0;
839 }
840
841 static int cs53l30_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
842 {
843 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
844
845 if (priv->mute_gpio)
846 gpiod_set_value_cansleep(priv->mute_gpio, mute);
847
848 return 0;
849 }
850
851 /* SNDRV_PCM_RATE_KNOT -> 12000, 24000 Hz, limit with constraint list */
852 #define CS53L30_RATES (SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT)
853
854 #define CS53L30_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
855 SNDRV_PCM_FMTBIT_S24_LE)
856
857 static const struct snd_soc_dai_ops cs53l30_ops = {
858 .startup = cs53l30_pcm_startup,
859 .hw_params = cs53l30_pcm_hw_params,
860 .set_fmt = cs53l30_set_dai_fmt,
861 .set_sysclk = cs53l30_set_sysclk,
862 .set_tristate = cs53l30_set_tristate,
863 .set_tdm_slot = cs53l30_set_dai_tdm_slot,
864 .mute_stream = cs53l30_mute_stream,
865 };
866
867 static struct snd_soc_dai_driver cs53l30_dai = {
868 .name = "cs53l30",
869 .capture = {
870 .stream_name = "Capture",
871 .channels_min = 1,
872 .channels_max = 4,
873 .rates = CS53L30_RATES,
874 .formats = CS53L30_FORMATS,
875 },
876 .ops = &cs53l30_ops,
877 .symmetric_rates = 1,
878 };
879
880 static int cs53l30_codec_probe(struct snd_soc_codec *codec)
881 {
882 struct cs53l30_private *priv = snd_soc_codec_get_drvdata(codec);
883 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
884
885 if (priv->use_sdout2)
886 snd_soc_dapm_add_routes(dapm, cs53l30_dapm_routes_sdout2,
887 ARRAY_SIZE(cs53l30_dapm_routes_sdout2));
888 else
889 snd_soc_dapm_add_routes(dapm, cs53l30_dapm_routes_sdout1,
890 ARRAY_SIZE(cs53l30_dapm_routes_sdout1));
891
892 return 0;
893 }
894
895 static struct snd_soc_codec_driver cs53l30_driver = {
896 .probe = cs53l30_codec_probe,
897 .set_bias_level = cs53l30_set_bias_level,
898 .idle_bias_off = true,
899
900 .component_driver = {
901 .controls = cs53l30_snd_controls,
902 .num_controls = ARRAY_SIZE(cs53l30_snd_controls),
903 .dapm_widgets = cs53l30_dapm_widgets,
904 .num_dapm_widgets = ARRAY_SIZE(cs53l30_dapm_widgets),
905 .dapm_routes = cs53l30_dapm_routes,
906 .num_dapm_routes = ARRAY_SIZE(cs53l30_dapm_routes),
907 },
908 };
909
910 static struct regmap_config cs53l30_regmap = {
911 .reg_bits = 8,
912 .val_bits = 8,
913
914 .max_register = CS53L30_MAX_REGISTER,
915 .reg_defaults = cs53l30_reg_defaults,
916 .num_reg_defaults = ARRAY_SIZE(cs53l30_reg_defaults),
917 .volatile_reg = cs53l30_volatile_register,
918 .writeable_reg = cs53l30_writeable_register,
919 .readable_reg = cs53l30_readable_register,
920 .cache_type = REGCACHE_RBTREE,
921 };
922
923 static int cs53l30_i2c_probe(struct i2c_client *client,
924 const struct i2c_device_id *id)
925 {
926 const struct device_node *np = client->dev.of_node;
927 struct device *dev = &client->dev;
928 struct cs53l30_private *cs53l30;
929 unsigned int devid = 0;
930 unsigned int reg;
931 int ret = 0, i;
932 u8 val;
933
934 cs53l30 = devm_kzalloc(dev, sizeof(*cs53l30), GFP_KERNEL);
935 if (!cs53l30)
936 return -ENOMEM;
937
938 for (i = 0; i < ARRAY_SIZE(cs53l30->supplies); i++)
939 cs53l30->supplies[i].supply = cs53l30_supply_names[i];
940
941 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs53l30->supplies),
942 cs53l30->supplies);
943 if (ret) {
944 dev_err(dev, "failed to get supplies: %d\n", ret);
945 return ret;
946 }
947
948 ret = regulator_bulk_enable(ARRAY_SIZE(cs53l30->supplies),
949 cs53l30->supplies);
950 if (ret) {
951 dev_err(dev, "failed to enable supplies: %d\n", ret);
952 return ret;
953 }
954
955 /* Reset the Device */
956 cs53l30->reset_gpio = devm_gpiod_get_optional(dev, "reset",
957 GPIOD_OUT_LOW);
958 if (IS_ERR(cs53l30->reset_gpio)) {
959 ret = PTR_ERR(cs53l30->reset_gpio);
960 goto error;
961 }
962
963 if (cs53l30->reset_gpio)
964 gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
965
966 i2c_set_clientdata(client, cs53l30);
967
968 cs53l30->mclk_rate = 0;
969
970 cs53l30->regmap = devm_regmap_init_i2c(client, &cs53l30_regmap);
971 if (IS_ERR(cs53l30->regmap)) {
972 ret = PTR_ERR(cs53l30->regmap);
973 dev_err(dev, "regmap_init() failed: %d\n", ret);
974 goto error;
975 }
976
977 /* Initialize codec */
978 ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_AB, &reg);
979 devid = reg << 12;
980
981 ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_CD, &reg);
982 devid |= reg << 4;
983
984 ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_E, &reg);
985 devid |= (reg & 0xF0) >> 4;
986
987 if (devid != CS53L30_DEVID) {
988 ret = -ENODEV;
989 dev_err(dev, "Device ID (%X). Expected %X\n",
990 devid, CS53L30_DEVID);
991 goto error;
992 }
993
994 ret = regmap_read(cs53l30->regmap, CS53L30_REVID, &reg);
995 if (ret < 0) {
996 dev_err(dev, "failed to get Revision ID: %d\n", ret);
997 goto error;
998 }
999
1000 /* Check if MCLK provided */
1001 cs53l30->mclk = devm_clk_get(dev, "mclk");
1002 if (IS_ERR(cs53l30->mclk)) {
1003 if (PTR_ERR(cs53l30->mclk) != -ENOENT) {
1004 ret = PTR_ERR(cs53l30->mclk);
1005 goto error;
1006 }
1007 /* Otherwise mark the mclk pointer to NULL */
1008 cs53l30->mclk = NULL;
1009 }
1010
1011 /* Fetch the MUTE control */
1012 cs53l30->mute_gpio = devm_gpiod_get_optional(dev, "mute",
1013 GPIOD_OUT_HIGH);
1014 if (IS_ERR(cs53l30->mute_gpio)) {
1015 ret = PTR_ERR(cs53l30->mute_gpio);
1016 goto error;
1017 }
1018
1019 if (cs53l30->mute_gpio) {
1020 /* Enable MUTE controls via MUTE pin */
1021 regmap_write(cs53l30->regmap, CS53L30_MUTEP_CTL1,
1022 CS53L30_MUTEP_CTL1_MUTEALL);
1023 /* Flip the polarity of MUTE pin */
1024 if (gpiod_is_active_low(cs53l30->mute_gpio))
1025 regmap_update_bits(cs53l30->regmap, CS53L30_MUTEP_CTL2,
1026 CS53L30_MUTE_PIN_POLARITY, 0);
1027 }
1028
1029 if (!of_property_read_u8(np, "cirrus,micbias-lvl", &val))
1030 regmap_update_bits(cs53l30->regmap, CS53L30_MICBIAS_CTL,
1031 CS53L30_MIC_BIAS_CTRL_MASK, val);
1032
1033 if (of_property_read_bool(np, "cirrus,use-sdout2"))
1034 cs53l30->use_sdout2 = true;
1035
1036 dev_info(dev, "Cirrus Logic CS53L30, Revision: %02X\n", reg & 0xFF);
1037
1038 ret = snd_soc_register_codec(dev, &cs53l30_driver, &cs53l30_dai, 1);
1039 if (ret) {
1040 dev_err(dev, "failed to register codec: %d\n", ret);
1041 goto error;
1042 }
1043
1044 return 0;
1045
1046 error:
1047 regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
1048 cs53l30->supplies);
1049 return ret;
1050 }
1051
1052 static int cs53l30_i2c_remove(struct i2c_client *client)
1053 {
1054 struct cs53l30_private *cs53l30 = i2c_get_clientdata(client);
1055
1056 snd_soc_unregister_codec(&client->dev);
1057
1058 /* Hold down reset */
1059 if (cs53l30->reset_gpio)
1060 gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
1061
1062 regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
1063 cs53l30->supplies);
1064
1065 return 0;
1066 }
1067
1068 #ifdef CONFIG_PM
1069 static int cs53l30_runtime_suspend(struct device *dev)
1070 {
1071 struct cs53l30_private *cs53l30 = dev_get_drvdata(dev);
1072
1073 regcache_cache_only(cs53l30->regmap, true);
1074
1075 /* Hold down reset */
1076 if (cs53l30->reset_gpio)
1077 gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
1078
1079 regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
1080 cs53l30->supplies);
1081
1082 return 0;
1083 }
1084
1085 static int cs53l30_runtime_resume(struct device *dev)
1086 {
1087 struct cs53l30_private *cs53l30 = dev_get_drvdata(dev);
1088 int ret;
1089
1090 ret = regulator_bulk_enable(ARRAY_SIZE(cs53l30->supplies),
1091 cs53l30->supplies);
1092 if (ret) {
1093 dev_err(dev, "failed to enable supplies: %d\n", ret);
1094 return ret;
1095 }
1096
1097 if (cs53l30->reset_gpio)
1098 gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
1099
1100 regcache_cache_only(cs53l30->regmap, false);
1101 ret = regcache_sync(cs53l30->regmap);
1102 if (ret) {
1103 dev_err(dev, "failed to synchronize regcache: %d\n", ret);
1104 return ret;
1105 }
1106
1107 return 0;
1108 }
1109 #endif
1110
1111 static const struct dev_pm_ops cs53l30_runtime_pm = {
1112 SET_RUNTIME_PM_OPS(cs53l30_runtime_suspend, cs53l30_runtime_resume,
1113 NULL)
1114 };
1115
1116 static const struct of_device_id cs53l30_of_match[] = {
1117 { .compatible = "cirrus,cs53l30", },
1118 {},
1119 };
1120
1121 MODULE_DEVICE_TABLE(of, cs53l30_of_match);
1122
1123 static const struct i2c_device_id cs53l30_id[] = {
1124 { "cs53l30", 0 },
1125 {}
1126 };
1127
1128 MODULE_DEVICE_TABLE(i2c, cs53l30_id);
1129
1130 static struct i2c_driver cs53l30_i2c_driver = {
1131 .driver = {
1132 .name = "cs53l30",
1133 .pm = &cs53l30_runtime_pm,
1134 },
1135 .id_table = cs53l30_id,
1136 .probe = cs53l30_i2c_probe,
1137 .remove = cs53l30_i2c_remove,
1138 };
1139
1140 module_i2c_driver(cs53l30_i2c_driver);
1141
1142 MODULE_DESCRIPTION("ASoC CS53L30 driver");
1143 MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <Paul.Handrigan@cirrus.com>");
1144 MODULE_LICENSE("GPL");
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