1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * cs53l30.c -- CS53l30 ALSA Soc Audio driver
4 *
5 * Copyright 2015 Cirrus Logic, Inc.
6 *
7 * Authors: Paul Handrigan <Paul.Handrigan@cirrus.com>,
8 * Tim Howe <Tim.Howe@cirrus.com>
9 */
10
11 #include <linux/clk.h>
12 #include <linux/delay.h>
13 #include <linux/i2c.h>
14 #include <linux/module.h>
15 #include <linux/gpio/consumer.h>
16 #include <linux/regulator/consumer.h>
17 #include <sound/pcm_params.h>
18 #include <sound/soc.h>
19 #include <sound/tlv.h>
20
21 #include "cs53l30.h"
22 #include "cirrus_legacy.h"
23
24 #define CS53L30_NUM_SUPPLIES 2
25 static const char *const cs53l30_supply_names[CS53L30_NUM_SUPPLIES] = {
26 "VA",
27 "VP",
28 };
29
30 struct cs53l30_private {
31 struct regulator_bulk_data supplies[CS53L30_NUM_SUPPLIES];
32 struct regmap *regmap;
33 struct gpio_desc *reset_gpio;
34 struct gpio_desc *mute_gpio;
35 struct clk *mclk;
36 bool use_sdout2;
37 u32 mclk_rate;
38 };
39
40 static const struct reg_default cs53l30_reg_defaults[] = {
41 { CS53L30_PWRCTL, CS53L30_PWRCTL_DEFAULT },
42 { CS53L30_MCLKCTL, CS53L30_MCLKCTL_DEFAULT },
43 { CS53L30_INT_SR_CTL, CS53L30_INT_SR_CTL_DEFAULT },
44 { CS53L30_MICBIAS_CTL, CS53L30_MICBIAS_CTL_DEFAULT },
45 { CS53L30_ASPCFG_CTL, CS53L30_ASPCFG_CTL_DEFAULT },
46 { CS53L30_ASP_CTL1, CS53L30_ASP_CTL1_DEFAULT },
47 { CS53L30_ASP_TDMTX_CTL1, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
48 { CS53L30_ASP_TDMTX_CTL2, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
49 { CS53L30_ASP_TDMTX_CTL3, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
50 { CS53L30_ASP_TDMTX_CTL4, CS53L30_ASP_TDMTX_CTLx_DEFAULT },
51 { CS53L30_ASP_TDMTX_EN1, CS53L30_ASP_TDMTX_ENx_DEFAULT },
52 { CS53L30_ASP_TDMTX_EN2, CS53L30_ASP_TDMTX_ENx_DEFAULT },
53 { CS53L30_ASP_TDMTX_EN3, CS53L30_ASP_TDMTX_ENx_DEFAULT },
54 { CS53L30_ASP_TDMTX_EN4, CS53L30_ASP_TDMTX_ENx_DEFAULT },
55 { CS53L30_ASP_TDMTX_EN5, CS53L30_ASP_TDMTX_ENx_DEFAULT },
56 { CS53L30_ASP_TDMTX_EN6, CS53L30_ASP_TDMTX_ENx_DEFAULT },
57 { CS53L30_ASP_CTL2, CS53L30_ASP_CTL2_DEFAULT },
58 { CS53L30_SFT_RAMP, CS53L30_SFT_RMP_DEFAULT },
59 { CS53L30_LRCK_CTL1, CS53L30_LRCK_CTLx_DEFAULT },
60 { CS53L30_LRCK_CTL2, CS53L30_LRCK_CTLx_DEFAULT },
61 { CS53L30_MUTEP_CTL1, CS53L30_MUTEP_CTL1_DEFAULT },
62 { CS53L30_MUTEP_CTL2, CS53L30_MUTEP_CTL2_DEFAULT },
63 { CS53L30_INBIAS_CTL1, CS53L30_INBIAS_CTL1_DEFAULT },
64 { CS53L30_INBIAS_CTL2, CS53L30_INBIAS_CTL2_DEFAULT },
65 { CS53L30_DMIC1_STR_CTL, CS53L30_DMIC1_STR_CTL_DEFAULT },
66 { CS53L30_DMIC2_STR_CTL, CS53L30_DMIC2_STR_CTL_DEFAULT },
67 { CS53L30_ADCDMIC1_CTL1, CS53L30_ADCDMICx_CTL1_DEFAULT },
68 { CS53L30_ADCDMIC1_CTL2, CS53L30_ADCDMIC1_CTL2_DEFAULT },
69 { CS53L30_ADC1_CTL3, CS53L30_ADCx_CTL3_DEFAULT },
70 { CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_CTL_DEFAULT },
71 { CS53L30_ADC1A_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
72 { CS53L30_ADC1B_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
73 { CS53L30_ADC1A_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
74 { CS53L30_ADC1B_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
75 { CS53L30_ADCDMIC2_CTL1, CS53L30_ADCDMICx_CTL1_DEFAULT },
76 { CS53L30_ADCDMIC2_CTL2, CS53L30_ADCDMIC1_CTL2_DEFAULT },
77 { CS53L30_ADC2_CTL3, CS53L30_ADCx_CTL3_DEFAULT },
78 { CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_CTL_DEFAULT },
79 { CS53L30_ADC2A_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
80 { CS53L30_ADC2B_AFE_CTL, CS53L30_ADCxy_AFE_CTL_DEFAULT },
81 { CS53L30_ADC2A_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
82 { CS53L30_ADC2B_DIG_VOL, CS53L30_ADCxy_DIG_VOL_DEFAULT },
83 { CS53L30_INT_MASK, CS53L30_DEVICE_INT_MASK },
84 };
85
86 static bool cs53l30_volatile_register(struct device *dev, unsigned int reg)
87 {
88 if (reg == CS53L30_IS)
89 return true;
90 else
91 return false;
92 }
93
94 static bool cs53l30_writeable_register(struct device *dev, unsigned int reg)
95 {
96 switch (reg) {
97 case CS53L30_DEVID_AB:
98 case CS53L30_DEVID_CD:
99 case CS53L30_DEVID_E:
100 case CS53L30_REVID:
101 case CS53L30_IS:
102 return false;
103 default:
104 return true;
105 }
106 }
107
108 static bool cs53l30_readable_register(struct device *dev, unsigned int reg)
109 {
110 switch (reg) {
111 case CS53L30_DEVID_AB:
112 case CS53L30_DEVID_CD:
113 case CS53L30_DEVID_E:
114 case CS53L30_REVID:
115 case CS53L30_PWRCTL:
116 case CS53L30_MCLKCTL:
117 case CS53L30_INT_SR_CTL:
118 case CS53L30_MICBIAS_CTL:
119 case CS53L30_ASPCFG_CTL:
120 case CS53L30_ASP_CTL1:
121 case CS53L30_ASP_TDMTX_CTL1:
122 case CS53L30_ASP_TDMTX_CTL2:
123 case CS53L30_ASP_TDMTX_CTL3:
124 case CS53L30_ASP_TDMTX_CTL4:
125 case CS53L30_ASP_TDMTX_EN1:
126 case CS53L30_ASP_TDMTX_EN2:
127 case CS53L30_ASP_TDMTX_EN3:
128 case CS53L30_ASP_TDMTX_EN4:
129 case CS53L30_ASP_TDMTX_EN5:
130 case CS53L30_ASP_TDMTX_EN6:
131 case CS53L30_ASP_CTL2:
132 case CS53L30_SFT_RAMP:
133 case CS53L30_LRCK_CTL1:
134 case CS53L30_LRCK_CTL2:
135 case CS53L30_MUTEP_CTL1:
136 case CS53L30_MUTEP_CTL2:
137 case CS53L30_INBIAS_CTL1:
138 case CS53L30_INBIAS_CTL2:
139 case CS53L30_DMIC1_STR_CTL:
140 case CS53L30_DMIC2_STR_CTL:
141 case CS53L30_ADCDMIC1_CTL1:
142 case CS53L30_ADCDMIC1_CTL2:
143 case CS53L30_ADC1_CTL3:
144 case CS53L30_ADC1_NG_CTL:
145 case CS53L30_ADC1A_AFE_CTL:
146 case CS53L30_ADC1B_AFE_CTL:
147 case CS53L30_ADC1A_DIG_VOL:
148 case CS53L30_ADC1B_DIG_VOL:
149 case CS53L30_ADCDMIC2_CTL1:
150 case CS53L30_ADCDMIC2_CTL2:
151 case CS53L30_ADC2_CTL3:
152 case CS53L30_ADC2_NG_CTL:
153 case CS53L30_ADC2A_AFE_CTL:
154 case CS53L30_ADC2B_AFE_CTL:
155 case CS53L30_ADC2A_DIG_VOL:
156 case CS53L30_ADC2B_DIG_VOL:
157 case CS53L30_INT_MASK:
158 return true;
159 default:
160 return false;
161 }
162 }
163
164 static DECLARE_TLV_DB_SCALE(adc_boost_tlv, 0, 2000, 0);
165 static DECLARE_TLV_DB_SCALE(adc_ng_boost_tlv, 0, 3000, 0);
166 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0);
167 static DECLARE_TLV_DB_SCALE(dig_tlv, -9600, 100, 1);
168 static DECLARE_TLV_DB_SCALE(pga_preamp_tlv, 0, 10000, 0);
169
170 static const char * const input1_sel_text[] = {
171 "DMIC1 On AB In",
172 "DMIC1 On A In",
173 "DMIC1 On B In",
174 "ADC1 On AB In",
175 "ADC1 On A In",
176 "ADC1 On B In",
177 "DMIC1 Off ADC1 Off",
178 };
179
180 static unsigned int const input1_sel_values[] = {
181 CS53L30_CH_TYPE,
182 CS53L30_ADCxB_PDN | CS53L30_CH_TYPE,
183 CS53L30_ADCxA_PDN | CS53L30_CH_TYPE,
184 CS53L30_DMICx_PDN,
185 CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
186 CS53L30_ADCxA_PDN | CS53L30_DMICx_PDN,
187 CS53L30_ADCxA_PDN | CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
188 };
189
190 static const char * const input2_sel_text[] = {
191 "DMIC2 On AB In",
192 "DMIC2 On A In",
193 "DMIC2 On B In",
194 "ADC2 On AB In",
195 "ADC2 On A In",
196 "ADC2 On B In",
197 "DMIC2 Off ADC2 Off",
198 };
199
200 static unsigned int const input2_sel_values[] = {
201 0x0,
202 CS53L30_ADCxB_PDN,
203 CS53L30_ADCxA_PDN,
204 CS53L30_DMICx_PDN,
205 CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
206 CS53L30_ADCxA_PDN | CS53L30_DMICx_PDN,
207 CS53L30_ADCxA_PDN | CS53L30_ADCxB_PDN | CS53L30_DMICx_PDN,
208 };
209
210 static const char * const input1_route_sel_text[] = {
211 "ADC1_SEL", "DMIC1_SEL",
212 };
213
214 static const struct soc_enum input1_route_sel_enum =
215 SOC_ENUM_SINGLE(CS53L30_ADCDMIC1_CTL1, CS53L30_CH_TYPE_SHIFT,
216 ARRAY_SIZE(input1_route_sel_text),
217 input1_route_sel_text);
218
219 static SOC_VALUE_ENUM_SINGLE_DECL(input1_sel_enum, CS53L30_ADCDMIC1_CTL1, 0,
220 CS53L30_ADCDMICx_PDN_MASK, input1_sel_text,
221 input1_sel_values);
222
223 static const struct snd_kcontrol_new input1_route_sel_mux =
224 SOC_DAPM_ENUM("Input 1 Route", input1_route_sel_enum);
225
226 static const char * const input2_route_sel_text[] = {
227 "ADC2_SEL", "DMIC2_SEL",
228 };
229
230 /* Note: CS53L30_ADCDMIC1_CTL1 CH_TYPE controls inputs 1 and 2 */
231 static const struct soc_enum input2_route_sel_enum =
232 SOC_ENUM_SINGLE(CS53L30_ADCDMIC1_CTL1, 0,
233 ARRAY_SIZE(input2_route_sel_text),
234 input2_route_sel_text);
235
236 static SOC_VALUE_ENUM_SINGLE_DECL(input2_sel_enum, CS53L30_ADCDMIC2_CTL1, 0,
237 CS53L30_ADCDMICx_PDN_MASK, input2_sel_text,
238 input2_sel_values);
239
240 static const struct snd_kcontrol_new input2_route_sel_mux =
241 SOC_DAPM_ENUM("Input 2 Route", input2_route_sel_enum);
242
243 /*
244 * TB = 6144*(MCLK(int) scaling factor)/MCLK(internal)
245 * TB - Time base
246 * NOTE: If MCLK_INT_SCALE = 0, then TB=1
247 */
248 static const char * const cs53l30_ng_delay_text[] = {
249 "TB*50ms", "TB*100ms", "TB*150ms", "TB*200ms",
250 };
251
252 static const struct soc_enum adc1_ng_delay_enum =
253 SOC_ENUM_SINGLE(CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_DELAY_SHIFT,
254 ARRAY_SIZE(cs53l30_ng_delay_text),
255 cs53l30_ng_delay_text);
256
257 static const struct soc_enum adc2_ng_delay_enum =
258 SOC_ENUM_SINGLE(CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_DELAY_SHIFT,
259 ARRAY_SIZE(cs53l30_ng_delay_text),
260 cs53l30_ng_delay_text);
261
262 /* The noise gate threshold selected will depend on NG Boost */
263 static const char * const cs53l30_ng_thres_text[] = {
264 "-64dB/-34dB", "-66dB/-36dB", "-70dB/-40dB", "-73dB/-43dB",
265 "-76dB/-46dB", "-82dB/-52dB", "-58dB", "-64dB",
266 };
267
268 static const struct soc_enum adc1_ng_thres_enum =
269 SOC_ENUM_SINGLE(CS53L30_ADC1_NG_CTL, CS53L30_ADCx_NG_THRESH_SHIFT,
270 ARRAY_SIZE(cs53l30_ng_thres_text),
271 cs53l30_ng_thres_text);
272
273 static const struct soc_enum adc2_ng_thres_enum =
274 SOC_ENUM_SINGLE(CS53L30_ADC2_NG_CTL, CS53L30_ADCx_NG_THRESH_SHIFT,
275 ARRAY_SIZE(cs53l30_ng_thres_text),
276 cs53l30_ng_thres_text);
277
278 /* Corner frequencies are with an Fs of 48kHz. */
279 static const char * const hpf_corner_freq_text[] = {
280 "1.86Hz", "120Hz", "235Hz", "466Hz",
281 };
282
283 static const struct soc_enum adc1_hpf_enum =
284 SOC_ENUM_SINGLE(CS53L30_ADC1_CTL3, CS53L30_ADCx_HPF_CF_SHIFT,
285 ARRAY_SIZE(hpf_corner_freq_text), hpf_corner_freq_text);
286
287 static const struct soc_enum adc2_hpf_enum =
288 SOC_ENUM_SINGLE(CS53L30_ADC2_CTL3, CS53L30_ADCx_HPF_CF_SHIFT,
289 ARRAY_SIZE(hpf_corner_freq_text), hpf_corner_freq_text);
290
291 static const struct snd_kcontrol_new cs53l30_snd_controls[] = {
292 SOC_SINGLE("Digital Soft-Ramp Switch", CS53L30_SFT_RAMP,
293 CS53L30_DIGSFT_SHIFT, 1, 0),
294 SOC_SINGLE("ADC1 Noise Gate Ganging Switch", CS53L30_ADC1_CTL3,
295 CS53L30_ADCx_NG_ALL_SHIFT, 1, 0),
296 SOC_SINGLE("ADC2 Noise Gate Ganging Switch", CS53L30_ADC2_CTL3,
297 CS53L30_ADCx_NG_ALL_SHIFT, 1, 0),
298 SOC_SINGLE("ADC1A Noise Gate Enable Switch", CS53L30_ADC1_NG_CTL,
299 CS53L30_ADCxA_NG_SHIFT, 1, 0),
300 SOC_SINGLE("ADC1B Noise Gate Enable Switch", CS53L30_ADC1_NG_CTL,
301 CS53L30_ADCxB_NG_SHIFT, 1, 0),
302 SOC_SINGLE("ADC2A Noise Gate Enable Switch", CS53L30_ADC2_NG_CTL,
303 CS53L30_ADCxA_NG_SHIFT, 1, 0),
304 SOC_SINGLE("ADC2B Noise Gate Enable Switch", CS53L30_ADC2_NG_CTL,
305 CS53L30_ADCxB_NG_SHIFT, 1, 0),
306 SOC_SINGLE("ADC1 Notch Filter Switch", CS53L30_ADCDMIC1_CTL2,
307 CS53L30_ADCx_NOTCH_DIS_SHIFT, 1, 1),
308 SOC_SINGLE("ADC2 Notch Filter Switch", CS53L30_ADCDMIC2_CTL2,
309 CS53L30_ADCx_NOTCH_DIS_SHIFT, 1, 1),
310 SOC_SINGLE("ADC1A Invert Switch", CS53L30_ADCDMIC1_CTL2,
311 CS53L30_ADCxA_INV_SHIFT, 1, 0),
312 SOC_SINGLE("ADC1B Invert Switch", CS53L30_ADCDMIC1_CTL2,
313 CS53L30_ADCxB_INV_SHIFT, 1, 0),
314 SOC_SINGLE("ADC2A Invert Switch", CS53L30_ADCDMIC2_CTL2,
315 CS53L30_ADCxA_INV_SHIFT, 1, 0),
316 SOC_SINGLE("ADC2B Invert Switch", CS53L30_ADCDMIC2_CTL2,
317 CS53L30_ADCxB_INV_SHIFT, 1, 0),
318
319 SOC_SINGLE_TLV("ADC1A Digital Boost Volume", CS53L30_ADCDMIC1_CTL2,
320 CS53L30_ADCxA_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
321 SOC_SINGLE_TLV("ADC1B Digital Boost Volume", CS53L30_ADCDMIC1_CTL2,
322 CS53L30_ADCxB_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
323 SOC_SINGLE_TLV("ADC2A Digital Boost Volume", CS53L30_ADCDMIC2_CTL2,
324 CS53L30_ADCxA_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
325 SOC_SINGLE_TLV("ADC2B Digital Boost Volume", CS53L30_ADCDMIC2_CTL2,
326 CS53L30_ADCxB_DIG_BOOST_SHIFT, 1, 0, adc_boost_tlv),
327 SOC_SINGLE_TLV("ADC1 NG Boost Volume", CS53L30_ADC1_NG_CTL,
328 CS53L30_ADCx_NG_BOOST_SHIFT, 1, 0, adc_ng_boost_tlv),
329 SOC_SINGLE_TLV("ADC2 NG Boost Volume", CS53L30_ADC2_NG_CTL,
330 CS53L30_ADCx_NG_BOOST_SHIFT, 1, 0, adc_ng_boost_tlv),
331
332 SOC_DOUBLE_R_TLV("ADC1 Preamplifier Volume", CS53L30_ADC1A_AFE_CTL,
333 CS53L30_ADC1B_AFE_CTL, CS53L30_ADCxy_PREAMP_SHIFT,
334 2, 0, pga_preamp_tlv),
335 SOC_DOUBLE_R_TLV("ADC2 Preamplifier Volume", CS53L30_ADC2A_AFE_CTL,
336 CS53L30_ADC2B_AFE_CTL, CS53L30_ADCxy_PREAMP_SHIFT,
337 2, 0, pga_preamp_tlv),
338
339 SOC_ENUM("Input 1 Channel Select", input1_sel_enum),
340 SOC_ENUM("Input 2 Channel Select", input2_sel_enum),
341
342 SOC_ENUM("ADC1 HPF Select", adc1_hpf_enum),
343 SOC_ENUM("ADC2 HPF Select", adc2_hpf_enum),
344 SOC_ENUM("ADC1 NG Threshold", adc1_ng_thres_enum),
345 SOC_ENUM("ADC2 NG Threshold", adc2_ng_thres_enum),
346 SOC_ENUM("ADC1 NG Delay", adc1_ng_delay_enum),
347 SOC_ENUM("ADC2 NG Delay", adc2_ng_delay_enum),
348
349 SOC_SINGLE_SX_TLV("ADC1A PGA Volume",
350 CS53L30_ADC1A_AFE_CTL, 0, 0x34, 0x24, pga_tlv),
351 SOC_SINGLE_SX_TLV("ADC1B PGA Volume",
352 CS53L30_ADC1B_AFE_CTL, 0, 0x34, 0x24, pga_tlv),
353 SOC_SINGLE_SX_TLV("ADC2A PGA Volume",
354 CS53L30_ADC2A_AFE_CTL, 0, 0x34, 0x24, pga_tlv),
355 SOC_SINGLE_SX_TLV("ADC2B PGA Volume",
356 CS53L30_ADC2B_AFE_CTL, 0, 0x34, 0x24, pga_tlv),
357
358 SOC_SINGLE_SX_TLV("ADC1A Digital Volume",
359 CS53L30_ADC1A_DIG_VOL, 0, 0xA0, 0x6C, dig_tlv),
360 SOC_SINGLE_SX_TLV("ADC1B Digital Volume",
361 CS53L30_ADC1B_DIG_VOL, 0, 0xA0, 0x6C, dig_tlv),
362 SOC_SINGLE_SX_TLV("ADC2A Digital Volume",
363 CS53L30_ADC2A_DIG_VOL, 0, 0xA0, 0x6C, dig_tlv),
364 SOC_SINGLE_SX_TLV("ADC2B Digital Volume",
365 CS53L30_ADC2B_DIG_VOL, 0, 0xA0, 0x6C, dig_tlv),
366 };
367
368 static const struct snd_soc_dapm_widget cs53l30_dapm_widgets[] = {
369 SND_SOC_DAPM_INPUT("IN1_DMIC1"),
370 SND_SOC_DAPM_INPUT("IN2"),
371 SND_SOC_DAPM_INPUT("IN3_DMIC2"),
372 SND_SOC_DAPM_INPUT("IN4"),
373 SND_SOC_DAPM_SUPPLY("MIC1 Bias", CS53L30_MICBIAS_CTL,
374 CS53L30_MIC1_BIAS_PDN_SHIFT, 1, NULL, 0),
375 SND_SOC_DAPM_SUPPLY("MIC2 Bias", CS53L30_MICBIAS_CTL,
376 CS53L30_MIC2_BIAS_PDN_SHIFT, 1, NULL, 0),
377 SND_SOC_DAPM_SUPPLY("MIC3 Bias", CS53L30_MICBIAS_CTL,
378 CS53L30_MIC3_BIAS_PDN_SHIFT, 1, NULL, 0),
379 SND_SOC_DAPM_SUPPLY("MIC4 Bias", CS53L30_MICBIAS_CTL,
380 CS53L30_MIC4_BIAS_PDN_SHIFT, 1, NULL, 0),
381
382 SND_SOC_DAPM_AIF_OUT("ASP_SDOUT1", NULL, 0, CS53L30_ASP_CTL1,
383 CS53L30_ASP_SDOUTx_PDN_SHIFT, 1),
384 SND_SOC_DAPM_AIF_OUT("ASP_SDOUT2", NULL, 0, CS53L30_ASP_CTL2,
385 CS53L30_ASP_SDOUTx_PDN_SHIFT, 1),
386
387 SND_SOC_DAPM_MUX("Input Mux 1", SND_SOC_NOPM, 0, 0,
388 &input1_route_sel_mux),
389 SND_SOC_DAPM_MUX("Input Mux 2", SND_SOC_NOPM, 0, 0,
390 &input2_route_sel_mux),
391
392 SND_SOC_DAPM_ADC("ADC1A", NULL, CS53L30_ADCDMIC1_CTL1,
393 CS53L30_ADCxA_PDN_SHIFT, 1),
394 SND_SOC_DAPM_ADC("ADC1B", NULL, CS53L30_ADCDMIC1_CTL1,
395 CS53L30_ADCxB_PDN_SHIFT, 1),
396 SND_SOC_DAPM_ADC("ADC2A", NULL, CS53L30_ADCDMIC2_CTL1,
397 CS53L30_ADCxA_PDN_SHIFT, 1),
398 SND_SOC_DAPM_ADC("ADC2B", NULL, CS53L30_ADCDMIC2_CTL1,
399 CS53L30_ADCxB_PDN_SHIFT, 1),
400 SND_SOC_DAPM_ADC("DMIC1", NULL, CS53L30_ADCDMIC1_CTL1,
401 CS53L30_DMICx_PDN_SHIFT, 1),
402 SND_SOC_DAPM_ADC("DMIC2", NULL, CS53L30_ADCDMIC2_CTL1,
403 CS53L30_DMICx_PDN_SHIFT, 1),
404 };
405
406 static const struct snd_soc_dapm_route cs53l30_dapm_routes[] = {
407 /* ADC Input Paths */
408 {"ADC1A", NULL, "IN1_DMIC1"},
409 {"Input Mux 1", "ADC1_SEL", "ADC1A"},
410 {"ADC1B", NULL, "IN2"},
411
412 {"ADC2A", NULL, "IN3_DMIC2"},
413 {"Input Mux 2", "ADC2_SEL", "ADC2A"},
414 {"ADC2B", NULL, "IN4"},
415
416 /* MIC Bias Paths */
417 {"ADC1A", NULL, "MIC1 Bias"},
418 {"ADC1B", NULL, "MIC2 Bias"},
419 {"ADC2A", NULL, "MIC3 Bias"},
420 {"ADC2B", NULL, "MIC4 Bias"},
421
422 /* DMIC Paths */
423 {"DMIC1", NULL, "IN1_DMIC1"},
424 {"Input Mux 1", "DMIC1_SEL", "DMIC1"},
425
426 {"DMIC2", NULL, "IN3_DMIC2"},
427 {"Input Mux 2", "DMIC2_SEL", "DMIC2"},
428 };
429
430 static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout1[] = {
431 /* Output Paths when using SDOUT1 only */
432 {"ASP_SDOUT1", NULL, "ADC1A" },
433 {"ASP_SDOUT1", NULL, "Input Mux 1"},
434 {"ASP_SDOUT1", NULL, "ADC1B"},
435
436 {"ASP_SDOUT1", NULL, "ADC2A"},
437 {"ASP_SDOUT1", NULL, "Input Mux 2"},
438 {"ASP_SDOUT1", NULL, "ADC2B"},
439
440 {"Capture", NULL, "ASP_SDOUT1"},
441 };
442
443 static const struct snd_soc_dapm_route cs53l30_dapm_routes_sdout2[] = {
444 /* Output Paths when using both SDOUT1 and SDOUT2 */
445 {"ASP_SDOUT1", NULL, "ADC1A" },
446 {"ASP_SDOUT1", NULL, "Input Mux 1"},
447 {"ASP_SDOUT1", NULL, "ADC1B"},
448
449 {"ASP_SDOUT2", NULL, "ADC2A"},
450 {"ASP_SDOUT2", NULL, "Input Mux 2"},
451 {"ASP_SDOUT2", NULL, "ADC2B"},
452
453 {"Capture", NULL, "ASP_SDOUT1"},
454 {"Capture", NULL, "ASP_SDOUT2"},
455 };
456
457 struct cs53l30_mclk_div {
458 u32 mclk_rate;
459 u32 srate;
460 u8 asp_rate;
461 u8 internal_fs_ratio;
462 u8 mclk_int_scale;
463 };
464
465 static const struct cs53l30_mclk_div cs53l30_mclk_coeffs[] = {
466 /* NOTE: Enable MCLK_INT_SCALE to save power. */
467
468 /* MCLK, Sample Rate, asp_rate, internal_fs_ratio, mclk_int_scale */
469 {5644800, 11025, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
470 {5644800, 22050, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
471 {5644800, 44100, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
472
473 {6000000, 8000, 0x1, 0, CS53L30_MCLK_INT_SCALE},
474 {6000000, 11025, 0x2, 0, CS53L30_MCLK_INT_SCALE},
475 {6000000, 12000, 0x4, 0, CS53L30_MCLK_INT_SCALE},
476 {6000000, 16000, 0x5, 0, CS53L30_MCLK_INT_SCALE},
477 {6000000, 22050, 0x6, 0, CS53L30_MCLK_INT_SCALE},
478 {6000000, 24000, 0x8, 0, CS53L30_MCLK_INT_SCALE},
479 {6000000, 32000, 0x9, 0, CS53L30_MCLK_INT_SCALE},
480 {6000000, 44100, 0xA, 0, CS53L30_MCLK_INT_SCALE},
481 {6000000, 48000, 0xC, 0, CS53L30_MCLK_INT_SCALE},
482
483 {6144000, 8000, 0x1, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
484 {6144000, 11025, 0x2, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
485 {6144000, 12000, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
486 {6144000, 16000, 0x5, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
487 {6144000, 22050, 0x6, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
488 {6144000, 24000, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
489 {6144000, 32000, 0x9, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
490 {6144000, 44100, 0xA, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
491 {6144000, 48000, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
492
493 {6400000, 8000, 0x1, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
494 {6400000, 11025, 0x2, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
495 {6400000, 12000, 0x4, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
496 {6400000, 16000, 0x5, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
497 {6400000, 22050, 0x6, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
498 {6400000, 24000, 0x8, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
499 {6400000, 32000, 0x9, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
500 {6400000, 44100, 0xA, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
501 {6400000, 48000, 0xC, CS53L30_INTRNL_FS_RATIO, CS53L30_MCLK_INT_SCALE},
502 };
503
504 struct cs53l30_mclkx_div {
505 u32 mclkx;
506 u8 ratio;
507 u8 mclkdiv;
508 };
509
510 static const struct cs53l30_mclkx_div cs53l30_mclkx_coeffs[] = {
511 {5644800, 1, CS53L30_MCLK_DIV_BY_1},
512 {6000000, 1, CS53L30_MCLK_DIV_BY_1},
513 {6144000, 1, CS53L30_MCLK_DIV_BY_1},
514 {11289600, 2, CS53L30_MCLK_DIV_BY_2},
515 {12288000, 2, CS53L30_MCLK_DIV_BY_2},
516 {12000000, 2, CS53L30_MCLK_DIV_BY_2},
517 {19200000, 3, CS53L30_MCLK_DIV_BY_3},
518 };
519
520 static int cs53l30_get_mclkx_coeff(int mclkx)
521 {
522 int i;
523
524 for (i = 0; i < ARRAY_SIZE(cs53l30_mclkx_coeffs); i++) {
525 if (cs53l30_mclkx_coeffs[i].mclkx == mclkx)
526 return i;
527 }
528
529 return -EINVAL;
530 }
531
532 static int cs53l30_get_mclk_coeff(int mclk_rate, int srate)
533 {
534 int i;
535
536 for (i = 0; i < ARRAY_SIZE(cs53l30_mclk_coeffs); i++) {
537 if (cs53l30_mclk_coeffs[i].mclk_rate == mclk_rate &&
538 cs53l30_mclk_coeffs[i].srate == srate)
539 return i;
540 }
541
542 return -EINVAL;
543 }
544
545 static int cs53l30_set_sysclk(struct snd_soc_dai *dai,
546 int clk_id, unsigned int freq, int dir)
547 {
548 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
549 int mclkx_coeff;
550 u32 mclk_rate;
551
552 /* MCLKX -> MCLK */
553 mclkx_coeff = cs53l30_get_mclkx_coeff(freq);
554 if (mclkx_coeff < 0)
555 return mclkx_coeff;
556
557 mclk_rate = cs53l30_mclkx_coeffs[mclkx_coeff].mclkx /
558 cs53l30_mclkx_coeffs[mclkx_coeff].ratio;
559
560 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
561 CS53L30_MCLK_DIV_MASK,
562 cs53l30_mclkx_coeffs[mclkx_coeff].mclkdiv);
563
564 priv->mclk_rate = mclk_rate;
565
566 return 0;
567 }
568
569 static int cs53l30_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
570 {
571 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
572 u8 aspcfg = 0, aspctl1 = 0;
573
574 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
575 case SND_SOC_DAIFMT_CBM_CFM:
576 aspcfg |= CS53L30_ASP_MS;
577 break;
578 case SND_SOC_DAIFMT_CBS_CFS:
579 break;
580 default:
581 return -EINVAL;
582 }
583
584 /* DAI mode */
585 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
586 case SND_SOC_DAIFMT_I2S:
587 /* Set TDM_PDN to turn off TDM mode -- Reset default */
588 aspctl1 |= CS53L30_ASP_TDM_PDN;
589 break;
590 case SND_SOC_DAIFMT_DSP_A:
591 /*
592 * Clear TDM_PDN to turn on TDM mode; Use ASP_SCLK_INV = 0
593 * with SHIFT_LEFT = 1 combination as Figure 4-13 shows in
594 * the CS53L30 datasheet
595 */
596 aspctl1 |= CS53L30_SHIFT_LEFT;
597 break;
598 default:
599 return -EINVAL;
600 }
601
602 /* Check to see if the SCLK is inverted */
603 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
604 case SND_SOC_DAIFMT_IB_NF:
605 case SND_SOC_DAIFMT_IB_IF:
606 aspcfg ^= CS53L30_ASP_SCLK_INV;
607 break;
608 default:
609 break;
610 }
611
612 regmap_update_bits(priv->regmap, CS53L30_ASPCFG_CTL,
613 CS53L30_ASP_MS | CS53L30_ASP_SCLK_INV, aspcfg);
614
615 regmap_update_bits(priv->regmap, CS53L30_ASP_CTL1,
616 CS53L30_ASP_TDM_PDN | CS53L30_SHIFT_LEFT, aspctl1);
617
618 return 0;
619 }
620
621 static int cs53l30_pcm_hw_params(struct snd_pcm_substream *substream,
622 struct snd_pcm_hw_params *params,
623 struct snd_soc_dai *dai)
624 {
625 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
626 int srate = params_rate(params);
627 int mclk_coeff;
628
629 /* MCLK -> srate */
630 mclk_coeff = cs53l30_get_mclk_coeff(priv->mclk_rate, srate);
631 if (mclk_coeff < 0)
632 return -EINVAL;
633
634 regmap_update_bits(priv->regmap, CS53L30_INT_SR_CTL,
635 CS53L30_INTRNL_FS_RATIO_MASK,
636 cs53l30_mclk_coeffs[mclk_coeff].internal_fs_ratio);
637
638 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
639 CS53L30_MCLK_INT_SCALE_MASK,
640 cs53l30_mclk_coeffs[mclk_coeff].mclk_int_scale);
641
642 regmap_update_bits(priv->regmap, CS53L30_ASPCFG_CTL,
643 CS53L30_ASP_RATE_MASK,
644 cs53l30_mclk_coeffs[mclk_coeff].asp_rate);
645
646 return 0;
647 }
648
649 static int cs53l30_set_bias_level(struct snd_soc_component *component,
650 enum snd_soc_bias_level level)
651 {
652 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
653 struct cs53l30_private *priv = snd_soc_component_get_drvdata(component);
654 unsigned int reg;
655 int i, inter_max_check, ret;
656
657 switch (level) {
658 case SND_SOC_BIAS_ON:
659 break;
660 case SND_SOC_BIAS_PREPARE:
661 if (dapm->bias_level == SND_SOC_BIAS_STANDBY)
662 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
663 CS53L30_PDN_LP_MASK, 0);
664 break;
665 case SND_SOC_BIAS_STANDBY:
666 if (dapm->bias_level == SND_SOC_BIAS_OFF) {
667 ret = clk_prepare_enable(priv->mclk);
668 if (ret) {
669 dev_err(component->dev,
670 "failed to enable MCLK: %d\n", ret);
671 return ret;
672 }
673 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
674 CS53L30_MCLK_DIS_MASK, 0);
675 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
676 CS53L30_PDN_ULP_MASK, 0);
677 msleep(50);
678 } else {
679 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
680 CS53L30_PDN_ULP_MASK,
681 CS53L30_PDN_ULP);
682 }
683 break;
684 case SND_SOC_BIAS_OFF:
685 regmap_update_bits(priv->regmap, CS53L30_INT_MASK,
686 CS53L30_PDN_DONE, 0);
687 /*
688 * If digital softramp is set, the amount of time required
689 * for power down increases and depends on the digital
690 * volume setting.
691 */
692
693 /* Set the max possible time if digsft is set */
694 regmap_read(priv->regmap, CS53L30_SFT_RAMP, ®);
695 if (reg & CS53L30_DIGSFT_MASK)
696 inter_max_check = CS53L30_PDN_POLL_MAX;
697 else
698 inter_max_check = 10;
699
700 regmap_update_bits(priv->regmap, CS53L30_PWRCTL,
701 CS53L30_PDN_ULP_MASK,
702 CS53L30_PDN_ULP);
703 /* PDN_DONE will take a min of 20ms to be set.*/
704 msleep(20);
705 /* Clr status */
706 regmap_read(priv->regmap, CS53L30_IS, ®);
707 for (i = 0; i < inter_max_check; i++) {
708 if (inter_max_check < 10) {
709 usleep_range(1000, 1100);
710 regmap_read(priv->regmap, CS53L30_IS, ®);
711 if (reg & CS53L30_PDN_DONE)
712 break;
713 } else {
714 usleep_range(10000, 10100);
715 regmap_read(priv->regmap, CS53L30_IS, ®);
716 if (reg & CS53L30_PDN_DONE)
717 break;
718 }
719 }
720 /* PDN_DONE is set. We now can disable the MCLK */
721 regmap_update_bits(priv->regmap, CS53L30_INT_MASK,
722 CS53L30_PDN_DONE, CS53L30_PDN_DONE);
723 regmap_update_bits(priv->regmap, CS53L30_MCLKCTL,
724 CS53L30_MCLK_DIS_MASK,
725 CS53L30_MCLK_DIS);
726 clk_disable_unprepare(priv->mclk);
727 break;
728 }
729
730 return 0;
731 }
732
733 static int cs53l30_set_tristate(struct snd_soc_dai *dai, int tristate)
734 {
735 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
736 u8 val = tristate ? CS53L30_ASP_3ST : 0;
737
738 return regmap_update_bits(priv->regmap, CS53L30_ASP_CTL1,
739 CS53L30_ASP_3ST_MASK, val);
740 }
741
742 static unsigned int const cs53l30_src_rates[] = {
743 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
744 };
745
746 static const struct snd_pcm_hw_constraint_list src_constraints = {
747 .count = ARRAY_SIZE(cs53l30_src_rates),
748 .list = cs53l30_src_rates,
749 };
750
751 static int cs53l30_pcm_startup(struct snd_pcm_substream *substream,
752 struct snd_soc_dai *dai)
753 {
754 snd_pcm_hw_constraint_list(substream->runtime, 0,
755 SNDRV_PCM_HW_PARAM_RATE, &src_constraints);
756
757 return 0;
758 }
759
760 /*
761 * Note: CS53L30 counts the slot number per byte while ASoC counts the slot
762 * number per slot_width. So there is a difference between the slots of ASoC
763 * and the slots of CS53L30.
764 */
765 static int cs53l30_set_dai_tdm_slot(struct snd_soc_dai *dai,
766 unsigned int tx_mask, unsigned int rx_mask,
767 int slots, int slot_width)
768 {
769 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
770 unsigned int loc[CS53L30_TDM_SLOT_MAX] = {48, 48, 48, 48};
771 unsigned int slot_next, slot_step;
772 u64 tx_enable = 0;
773 int i;
774
775 if (!rx_mask) {
776 dev_err(dai->dev, "rx masks must not be 0\n");
777 return -EINVAL;
778 }
779
780 /* Assuming slot_width is not supposed to be greater than 64 */
781 if (slots <= 0 || slot_width <= 0 || slot_width > 64) {
782 dev_err(dai->dev, "invalid slot number or slot width\n");
783 return -EINVAL;
784 }
785
786 if (slot_width & 0x7) {
787 dev_err(dai->dev, "slot width must count in byte\n");
788 return -EINVAL;
789 }
790
791 /* How many bytes in each ASoC slot */
792 slot_step = slot_width >> 3;
793
794 for (i = 0; rx_mask && i < CS53L30_TDM_SLOT_MAX; i++) {
795 /* Find the first slot from LSB */
796 slot_next = __ffs(rx_mask);
797 /* Save the slot location by converting to CS53L30 slot */
798 loc[i] = slot_next * slot_step;
799 /* Create the mask of CS53L30 slot */
800 tx_enable |= (u64)((u64)(1 << slot_step) - 1) << (u64)loc[i];
801 /* Clear this slot from rx_mask */
802 rx_mask &= ~(1 << slot_next);
803 }
804
805 /* Error out to avoid slot shift */
806 if (rx_mask && i == CS53L30_TDM_SLOT_MAX) {
807 dev_err(dai->dev, "rx_mask exceeds max slot number: %d\n",
808 CS53L30_TDM_SLOT_MAX);
809 return -EINVAL;
810 }
811
812 /* Validate the last active CS53L30 slot */
813 slot_next = loc[i - 1] + slot_step - 1;
814 if (slot_next > 47) {
815 dev_err(dai->dev, "slot selection out of bounds: %u\n",
816 slot_next);
817 return -EINVAL;
818 }
819
820 for (i = 0; i < CS53L30_TDM_SLOT_MAX && loc[i] != 48; i++) {
821 regmap_update_bits(priv->regmap, CS53L30_ASP_TDMTX_CTL(i),
822 CS53L30_ASP_CHx_TX_LOC_MASK, loc[i]);
823 dev_dbg(dai->dev, "loc[%d]=%x\n", i, loc[i]);
824 }
825
826 for (i = 0; i < CS53L30_ASP_TDMTX_ENx_MAX && tx_enable; i++) {
827 regmap_write(priv->regmap, CS53L30_ASP_TDMTX_ENx(i),
828 tx_enable & 0xff);
829 tx_enable >>= 8;
830 dev_dbg(dai->dev, "en_reg=%x, tx_enable=%llx\n",
831 CS53L30_ASP_TDMTX_ENx(i), tx_enable & 0xff);
832 }
833
834 return 0;
835 }
836
837 static int cs53l30_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
838 {
839 struct cs53l30_private *priv = snd_soc_component_get_drvdata(dai->component);
840
841 gpiod_set_value_cansleep(priv->mute_gpio, mute);
842
843 return 0;
844 }
845
846 /* SNDRV_PCM_RATE_KNOT -> 12000, 24000 Hz, limit with constraint list */
847 #define CS53L30_RATES (SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT)
848
849 #define CS53L30_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
850 SNDRV_PCM_FMTBIT_S24_LE)
851
852 static const struct snd_soc_dai_ops cs53l30_ops = {
853 .startup = cs53l30_pcm_startup,
854 .hw_params = cs53l30_pcm_hw_params,
855 .set_fmt = cs53l30_set_dai_fmt,
856 .set_sysclk = cs53l30_set_sysclk,
857 .set_tristate = cs53l30_set_tristate,
858 .set_tdm_slot = cs53l30_set_dai_tdm_slot,
859 .mute_stream = cs53l30_mute_stream,
860 };
861
862 static struct snd_soc_dai_driver cs53l30_dai = {
863 .name = "cs53l30",
864 .capture = {
865 .stream_name = "Capture",
866 .channels_min = 1,
867 .channels_max = 4,
868 .rates = CS53L30_RATES,
869 .formats = CS53L30_FORMATS,
870 },
871 .ops = &cs53l30_ops,
872 .symmetric_rate = 1,
873 };
874
875 static int cs53l30_component_probe(struct snd_soc_component *component)
876 {
877 struct cs53l30_private *priv = snd_soc_component_get_drvdata(component);
878 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
879
880 if (priv->use_sdout2)
881 snd_soc_dapm_add_routes(dapm, cs53l30_dapm_routes_sdout2,
882 ARRAY_SIZE(cs53l30_dapm_routes_sdout2));
883 else
884 snd_soc_dapm_add_routes(dapm, cs53l30_dapm_routes_sdout1,
885 ARRAY_SIZE(cs53l30_dapm_routes_sdout1));
886
887 return 0;
888 }
889
890 static const struct snd_soc_component_driver cs53l30_driver = {
891 .probe = cs53l30_component_probe,
892 .set_bias_level = cs53l30_set_bias_level,
893 .controls = cs53l30_snd_controls,
894 .num_controls = ARRAY_SIZE(cs53l30_snd_controls),
895 .dapm_widgets = cs53l30_dapm_widgets,
896 .num_dapm_widgets = ARRAY_SIZE(cs53l30_dapm_widgets),
897 .dapm_routes = cs53l30_dapm_routes,
898 .num_dapm_routes = ARRAY_SIZE(cs53l30_dapm_routes),
899 .use_pmdown_time = 1,
900 .endianness = 1,
901 };
902
903 static const struct regmap_config cs53l30_regmap = {
904 .reg_bits = 8,
905 .val_bits = 8,
906
907 .max_register = CS53L30_MAX_REGISTER,
908 .reg_defaults = cs53l30_reg_defaults,
909 .num_reg_defaults = ARRAY_SIZE(cs53l30_reg_defaults),
910 .volatile_reg = cs53l30_volatile_register,
911 .writeable_reg = cs53l30_writeable_register,
912 .readable_reg = cs53l30_readable_register,
913 .cache_type = REGCACHE_MAPLE,
914
915 .use_single_read = true,
916 .use_single_write = true,
917 };
918
919 static int cs53l30_i2c_probe(struct i2c_client *client)
920 {
921 const struct device_node *np = client->dev.of_node;
922 struct device *dev = &client->dev;
923 struct cs53l30_private *cs53l30;
924 unsigned int reg;
925 int ret = 0, i, devid;
926 u8 val;
927
928 cs53l30 = devm_kzalloc(dev, sizeof(*cs53l30), GFP_KERNEL);
929 if (!cs53l30)
930 return -ENOMEM;
931
932 for (i = 0; i < ARRAY_SIZE(cs53l30->supplies); i++)
933 cs53l30->supplies[i].supply = cs53l30_supply_names[i];
934
935 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs53l30->supplies),
936 cs53l30->supplies);
937 if (ret) {
938 dev_err(dev, "failed to get supplies: %d\n", ret);
939 return ret;
940 }
941
942 ret = regulator_bulk_enable(ARRAY_SIZE(cs53l30->supplies),
943 cs53l30->supplies);
944 if (ret) {
945 dev_err(dev, "failed to enable supplies: %d\n", ret);
946 return ret;
947 }
948
949 /* Reset the Device */
950 cs53l30->reset_gpio = devm_gpiod_get_optional(dev, "reset",
951 GPIOD_OUT_LOW);
952 if (IS_ERR(cs53l30->reset_gpio)) {
953 ret = PTR_ERR(cs53l30->reset_gpio);
954 goto error_supplies;
955 }
956
957 gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
958
959 i2c_set_clientdata(client, cs53l30);
960
961 cs53l30->mclk_rate = 0;
962
963 cs53l30->regmap = devm_regmap_init_i2c(client, &cs53l30_regmap);
964 if (IS_ERR(cs53l30->regmap)) {
965 ret = PTR_ERR(cs53l30->regmap);
966 dev_err(dev, "regmap_init() failed: %d\n", ret);
967 goto error;
968 }
969
970 /* Initialize codec */
971 devid = cirrus_read_device_id(cs53l30->regmap, CS53L30_DEVID_AB);
972 if (devid < 0) {
973 ret = devid;
974 dev_err(dev, "Failed to read device ID: %d\n", ret);
975 goto error;
976 }
977
978 if (devid != CS53L30_DEVID) {
979 ret = -ENODEV;
980 dev_err(dev, "Device ID (%X). Expected %X\n",
981 devid, CS53L30_DEVID);
982 goto error;
983 }
984
985 ret = regmap_read(cs53l30->regmap, CS53L30_REVID, ®);
986 if (ret < 0) {
987 dev_err(dev, "failed to get Revision ID: %d\n", ret);
988 goto error;
989 }
990
991 /* Check if MCLK provided */
992 cs53l30->mclk = devm_clk_get_optional(dev, "mclk");
993 if (IS_ERR(cs53l30->mclk)) {
994 ret = PTR_ERR(cs53l30->mclk);
995 goto error;
996 }
997
998 /* Fetch the MUTE control */
999 cs53l30->mute_gpio = devm_gpiod_get_optional(dev, "mute",
1000 GPIOD_OUT_HIGH);
1001 if (IS_ERR(cs53l30->mute_gpio)) {
1002 ret = PTR_ERR(cs53l30->mute_gpio);
1003 goto error;
1004 }
1005
1006 if (cs53l30->mute_gpio) {
1007 /* Enable MUTE controls via MUTE pin */
1008 regmap_write(cs53l30->regmap, CS53L30_MUTEP_CTL1,
1009 CS53L30_MUTEP_CTL1_MUTEALL);
1010 /* Flip the polarity of MUTE pin */
1011 if (gpiod_is_active_low(cs53l30->mute_gpio))
1012 regmap_update_bits(cs53l30->regmap, CS53L30_MUTEP_CTL2,
1013 CS53L30_MUTE_PIN_POLARITY, 0);
1014 }
1015
1016 if (!of_property_read_u8(np, "cirrus,micbias-lvl", &val))
1017 regmap_update_bits(cs53l30->regmap, CS53L30_MICBIAS_CTL,
1018 CS53L30_MIC_BIAS_CTRL_MASK, val);
1019
1020 if (of_property_read_bool(np, "cirrus,use-sdout2"))
1021 cs53l30->use_sdout2 = true;
1022
1023 dev_info(dev, "Cirrus Logic CS53L30, Revision: %02X\n", reg & 0xFF);
1024
1025 ret = devm_snd_soc_register_component(dev, &cs53l30_driver, &cs53l30_dai, 1);
1026 if (ret) {
1027 dev_err(dev, "failed to register component: %d\n", ret);
1028 goto error;
1029 }
1030
1031 return 0;
1032
1033 error:
1034 gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
1035 error_supplies:
1036 regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
1037 cs53l30->supplies);
1038 return ret;
1039 }
1040
1041 static void cs53l30_i2c_remove(struct i2c_client *client)
1042 {
1043 struct cs53l30_private *cs53l30 = i2c_get_clientdata(client);
1044
1045 /* Hold down reset */
1046 gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
1047
1048 regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
1049 cs53l30->supplies);
1050 }
1051
1052 #ifdef CONFIG_PM
1053 static int cs53l30_runtime_suspend(struct device *dev)
1054 {
1055 struct cs53l30_private *cs53l30 = dev_get_drvdata(dev);
1056
1057 regcache_cache_only(cs53l30->regmap, true);
1058
1059 /* Hold down reset */
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 static int cs53l30_runtime_resume(struct device *dev)
1069 {
1070 struct cs53l30_private *cs53l30 = dev_get_drvdata(dev);
1071 int ret;
1072
1073 ret = regulator_bulk_enable(ARRAY_SIZE(cs53l30->supplies),
1074 cs53l30->supplies);
1075 if (ret) {
1076 dev_err(dev, "failed to enable supplies: %d\n", ret);
1077 return ret;
1078 }
1079
1080 gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
1081
1082 regcache_cache_only(cs53l30->regmap, false);
1083 ret = regcache_sync(cs53l30->regmap);
1084 if (ret) {
1085 dev_err(dev, "failed to synchronize regcache: %d\n", ret);
1086 return ret;
1087 }
1088
1089 return 0;
1090 }
1091 #endif
1092
1093 static const struct dev_pm_ops cs53l30_runtime_pm = {
1094 SET_RUNTIME_PM_OPS(cs53l30_runtime_suspend, cs53l30_runtime_resume,
1095 NULL)
1096 };
1097
1098 static const struct of_device_id cs53l30_of_match[] = {
1099 { .compatible = "cirrus,cs53l30", },
1100 {},
1101 };
1102
1103 MODULE_DEVICE_TABLE(of, cs53l30_of_match);
1104
1105 static const struct i2c_device_id cs53l30_id[] = {
1106 { "cs53l30" },
1107 {}
1108 };
1109
1110 MODULE_DEVICE_TABLE(i2c, cs53l30_id);
1111
1112 static struct i2c_driver cs53l30_i2c_driver = {
1113 .driver = {
1114 .name = "cs53l30",
1115 .of_match_table = cs53l30_of_match,
1116 .pm = &cs53l30_runtime_pm,
1117 },
1118 .id_table = cs53l30_id,
1119 .probe = cs53l30_i2c_probe,
1120 .remove = cs53l30_i2c_remove,
1121 };
1122
1123 module_i2c_driver(cs53l30_i2c_driver);
1124
1125 MODULE_DESCRIPTION("ASoC CS53L30 driver");
1126 MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <Paul.Handrigan@cirrus.com>");
1127 MODULE_LICENSE("GPL");
1128
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