1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * cs42l42.c -- CS42L42 ALSA SoC audio driver
4 *
5 * Copyright 2016 Cirrus Logic, Inc.
6 *
7 * Author: James Schulman <james.schulman@cirrus.com>
8 * Author: Brian Austin <brian.austin@cirrus.com>
9 * Author: Michael White <michael.white@cirrus.com>
10 */
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/types.h>
15#include <linux/init.h>
16#include <linux/delay.h>
17#include <linux/regmap.h>
18#include <linux/slab.h>
19#include <linux/acpi.h>
20#include <linux/platform_device.h>
21#include <linux/pm_runtime.h>
22#include <linux/property.h>
23#include <linux/regulator/consumer.h>
24#include <linux/gpio/consumer.h>
25#include <sound/core.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29#include <sound/soc-dapm.h>
30#include <sound/initval.h>
31#include <sound/tlv.h>
32#include <dt-bindings/sound/cs42l42.h>
33
34#include "cs42l42.h"
35#include "cirrus_legacy.h"
36
37static const char * const cs42l42_supply_names[] = {
38 "VA",
39 "VP",
40 "VCP",
41 "VD_FILT",
42 "VL",
43};
44
45static const struct reg_default cs42l42_reg_defaults[] = {
46 { CS42L42_FRZ_CTL, 0x00 },
47 { CS42L42_SRC_CTL, 0x10 },
48 { CS42L42_MCLK_CTL, 0x02 },
49 { CS42L42_SFTRAMP_RATE, 0xA4 },
50 { CS42L42_SLOW_START_ENABLE, 0x70 },
51 { CS42L42_I2C_DEBOUNCE, 0x88 },
52 { CS42L42_I2C_STRETCH, 0x03 },
53 { CS42L42_I2C_TIMEOUT, 0xB7 },
54 { CS42L42_PWR_CTL1, 0xFF },
55 { CS42L42_PWR_CTL2, 0x84 },
56 { CS42L42_PWR_CTL3, 0x20 },
57 { CS42L42_RSENSE_CTL1, 0x40 },
58 { CS42L42_RSENSE_CTL2, 0x00 },
59 { CS42L42_OSC_SWITCH, 0x00 },
60 { CS42L42_RSENSE_CTL3, 0x1B },
61 { CS42L42_TSENSE_CTL, 0x1B },
62 { CS42L42_TSRS_INT_DISABLE, 0x00 },
63 { CS42L42_HSDET_CTL1, 0x77 },
64 { CS42L42_HSDET_CTL2, 0x00 },
65 { CS42L42_HS_SWITCH_CTL, 0xF3 },
66 { CS42L42_HS_CLAMP_DISABLE, 0x00 },
67 { CS42L42_MCLK_SRC_SEL, 0x00 },
68 { CS42L42_SPDIF_CLK_CFG, 0x00 },
69 { CS42L42_FSYNC_PW_LOWER, 0x00 },
70 { CS42L42_FSYNC_PW_UPPER, 0x00 },
71 { CS42L42_FSYNC_P_LOWER, 0xF9 },
72 { CS42L42_FSYNC_P_UPPER, 0x00 },
73 { CS42L42_ASP_CLK_CFG, 0x00 },
74 { CS42L42_ASP_FRM_CFG, 0x10 },
75 { CS42L42_FS_RATE_EN, 0x00 },
76 { CS42L42_IN_ASRC_CLK, 0x00 },
77 { CS42L42_OUT_ASRC_CLK, 0x00 },
78 { CS42L42_PLL_DIV_CFG1, 0x00 },
79 { CS42L42_ADC_OVFL_INT_MASK, 0x01 },
80 { CS42L42_MIXER_INT_MASK, 0x0F },
81 { CS42L42_SRC_INT_MASK, 0x0F },
82 { CS42L42_ASP_RX_INT_MASK, 0x1F },
83 { CS42L42_ASP_TX_INT_MASK, 0x0F },
84 { CS42L42_CODEC_INT_MASK, 0x03 },
85 { CS42L42_SRCPL_INT_MASK, 0x7F },
86 { CS42L42_VPMON_INT_MASK, 0x01 },
87 { CS42L42_PLL_LOCK_INT_MASK, 0x01 },
88 { CS42L42_TSRS_PLUG_INT_MASK, 0x0F },
89 { CS42L42_PLL_CTL1, 0x00 },
90 { CS42L42_PLL_DIV_FRAC0, 0x00 },
91 { CS42L42_PLL_DIV_FRAC1, 0x00 },
92 { CS42L42_PLL_DIV_FRAC2, 0x00 },
93 { CS42L42_PLL_DIV_INT, 0x40 },
94 { CS42L42_PLL_CTL3, 0x10 },
95 { CS42L42_PLL_CAL_RATIO, 0x80 },
96 { CS42L42_PLL_CTL4, 0x03 },
97 { CS42L42_LOAD_DET_EN, 0x00 },
98 { CS42L42_HSBIAS_SC_AUTOCTL, 0x03 },
99 { CS42L42_WAKE_CTL, 0xC0 },
100 { CS42L42_ADC_DISABLE_MUTE, 0x00 },
101 { CS42L42_TIPSENSE_CTL, 0x02 },
102 { CS42L42_MISC_DET_CTL, 0x03 },
103 { CS42L42_MIC_DET_CTL1, 0x1F },
104 { CS42L42_MIC_DET_CTL2, 0x2F },
105 { CS42L42_DET_INT1_MASK, 0xE0 },
106 { CS42L42_DET_INT2_MASK, 0xFF },
107 { CS42L42_HS_BIAS_CTL, 0xC2 },
108 { CS42L42_ADC_CTL, 0x00 },
109 { CS42L42_ADC_VOLUME, 0x00 },
110 { CS42L42_ADC_WNF_HPF_CTL, 0x71 },
111 { CS42L42_DAC_CTL1, 0x00 },
112 { CS42L42_DAC_CTL2, 0x02 },
113 { CS42L42_HP_CTL, 0x0D },
114 { CS42L42_CLASSH_CTL, 0x07 },
115 { CS42L42_MIXER_CHA_VOL, 0x3F },
116 { CS42L42_MIXER_ADC_VOL, 0x3F },
117 { CS42L42_MIXER_CHB_VOL, 0x3F },
118 { CS42L42_EQ_COEF_IN0, 0x00 },
119 { CS42L42_EQ_COEF_IN1, 0x00 },
120 { CS42L42_EQ_COEF_IN2, 0x00 },
121 { CS42L42_EQ_COEF_IN3, 0x00 },
122 { CS42L42_EQ_COEF_RW, 0x00 },
123 { CS42L42_EQ_COEF_OUT0, 0x00 },
124 { CS42L42_EQ_COEF_OUT1, 0x00 },
125 { CS42L42_EQ_COEF_OUT2, 0x00 },
126 { CS42L42_EQ_COEF_OUT3, 0x00 },
127 { CS42L42_EQ_INIT_STAT, 0x00 },
128 { CS42L42_EQ_START_FILT, 0x00 },
129 { CS42L42_EQ_MUTE_CTL, 0x00 },
130 { CS42L42_SP_RX_CH_SEL, 0x04 },
131 { CS42L42_SP_RX_ISOC_CTL, 0x04 },
132 { CS42L42_SP_RX_FS, 0x8C },
133 { CS42l42_SPDIF_CH_SEL, 0x0E },
134 { CS42L42_SP_TX_ISOC_CTL, 0x04 },
135 { CS42L42_SP_TX_FS, 0xCC },
136 { CS42L42_SPDIF_SW_CTL1, 0x3F },
137 { CS42L42_SRC_SDIN_FS, 0x40 },
138 { CS42L42_SRC_SDOUT_FS, 0x40 },
139 { CS42L42_SPDIF_CTL1, 0x01 },
140 { CS42L42_SPDIF_CTL2, 0x00 },
141 { CS42L42_SPDIF_CTL3, 0x00 },
142 { CS42L42_SPDIF_CTL4, 0x42 },
143 { CS42L42_ASP_TX_SZ_EN, 0x00 },
144 { CS42L42_ASP_TX_CH_EN, 0x00 },
145 { CS42L42_ASP_TX_CH_AP_RES, 0x0F },
146 { CS42L42_ASP_TX_CH1_BIT_MSB, 0x00 },
147 { CS42L42_ASP_TX_CH1_BIT_LSB, 0x00 },
148 { CS42L42_ASP_TX_HIZ_DLY_CFG, 0x00 },
149 { CS42L42_ASP_TX_CH2_BIT_MSB, 0x00 },
150 { CS42L42_ASP_TX_CH2_BIT_LSB, 0x00 },
151 { CS42L42_ASP_RX_DAI0_EN, 0x00 },
152 { CS42L42_ASP_RX_DAI0_CH1_AP_RES, 0x03 },
153 { CS42L42_ASP_RX_DAI0_CH1_BIT_MSB, 0x00 },
154 { CS42L42_ASP_RX_DAI0_CH1_BIT_LSB, 0x00 },
155 { CS42L42_ASP_RX_DAI0_CH2_AP_RES, 0x03 },
156 { CS42L42_ASP_RX_DAI0_CH2_BIT_MSB, 0x00 },
157 { CS42L42_ASP_RX_DAI0_CH2_BIT_LSB, 0x00 },
158 { CS42L42_ASP_RX_DAI0_CH3_AP_RES, 0x03 },
159 { CS42L42_ASP_RX_DAI0_CH3_BIT_MSB, 0x00 },
160 { CS42L42_ASP_RX_DAI0_CH3_BIT_LSB, 0x00 },
161 { CS42L42_ASP_RX_DAI0_CH4_AP_RES, 0x03 },
162 { CS42L42_ASP_RX_DAI0_CH4_BIT_MSB, 0x00 },
163 { CS42L42_ASP_RX_DAI0_CH4_BIT_LSB, 0x00 },
164 { CS42L42_ASP_RX_DAI1_CH1_AP_RES, 0x03 },
165 { CS42L42_ASP_RX_DAI1_CH1_BIT_MSB, 0x00 },
166 { CS42L42_ASP_RX_DAI1_CH1_BIT_LSB, 0x00 },
167 { CS42L42_ASP_RX_DAI1_CH2_AP_RES, 0x03 },
168 { CS42L42_ASP_RX_DAI1_CH2_BIT_MSB, 0x00 },
169 { CS42L42_ASP_RX_DAI1_CH2_BIT_LSB, 0x00 },
170};
171
172bool cs42l42_readable_register(struct device *dev, unsigned int reg)
173{
174 switch (reg) {
175 case CS42L42_PAGE_REGISTER:
176 case CS42L42_DEVID_AB:
177 case CS42L42_DEVID_CD:
178 case CS42L42_DEVID_E:
179 case CS42L42_FABID:
180 case CS42L42_REVID:
181 case CS42L42_FRZ_CTL:
182 case CS42L42_SRC_CTL:
183 case CS42L42_MCLK_STATUS:
184 case CS42L42_MCLK_CTL:
185 case CS42L42_SFTRAMP_RATE:
186 case CS42L42_SLOW_START_ENABLE:
187 case CS42L42_I2C_DEBOUNCE:
188 case CS42L42_I2C_STRETCH:
189 case CS42L42_I2C_TIMEOUT:
190 case CS42L42_PWR_CTL1:
191 case CS42L42_PWR_CTL2:
192 case CS42L42_PWR_CTL3:
193 case CS42L42_RSENSE_CTL1:
194 case CS42L42_RSENSE_CTL2:
195 case CS42L42_OSC_SWITCH:
196 case CS42L42_OSC_SWITCH_STATUS:
197 case CS42L42_RSENSE_CTL3:
198 case CS42L42_TSENSE_CTL:
199 case CS42L42_TSRS_INT_DISABLE:
200 case CS42L42_TRSENSE_STATUS:
201 case CS42L42_HSDET_CTL1:
202 case CS42L42_HSDET_CTL2:
203 case CS42L42_HS_SWITCH_CTL:
204 case CS42L42_HS_DET_STATUS:
205 case CS42L42_HS_CLAMP_DISABLE:
206 case CS42L42_MCLK_SRC_SEL:
207 case CS42L42_SPDIF_CLK_CFG:
208 case CS42L42_FSYNC_PW_LOWER:
209 case CS42L42_FSYNC_PW_UPPER:
210 case CS42L42_FSYNC_P_LOWER:
211 case CS42L42_FSYNC_P_UPPER:
212 case CS42L42_ASP_CLK_CFG:
213 case CS42L42_ASP_FRM_CFG:
214 case CS42L42_FS_RATE_EN:
215 case CS42L42_IN_ASRC_CLK:
216 case CS42L42_OUT_ASRC_CLK:
217 case CS42L42_PLL_DIV_CFG1:
218 case CS42L42_ADC_OVFL_STATUS:
219 case CS42L42_MIXER_STATUS:
220 case CS42L42_SRC_STATUS:
221 case CS42L42_ASP_RX_STATUS:
222 case CS42L42_ASP_TX_STATUS:
223 case CS42L42_CODEC_STATUS:
224 case CS42L42_DET_INT_STATUS1:
225 case CS42L42_DET_INT_STATUS2:
226 case CS42L42_SRCPL_INT_STATUS:
227 case CS42L42_VPMON_STATUS:
228 case CS42L42_PLL_LOCK_STATUS:
229 case CS42L42_TSRS_PLUG_STATUS:
230 case CS42L42_ADC_OVFL_INT_MASK:
231 case CS42L42_MIXER_INT_MASK:
232 case CS42L42_SRC_INT_MASK:
233 case CS42L42_ASP_RX_INT_MASK:
234 case CS42L42_ASP_TX_INT_MASK:
235 case CS42L42_CODEC_INT_MASK:
236 case CS42L42_SRCPL_INT_MASK:
237 case CS42L42_VPMON_INT_MASK:
238 case CS42L42_PLL_LOCK_INT_MASK:
239 case CS42L42_TSRS_PLUG_INT_MASK:
240 case CS42L42_PLL_CTL1:
241 case CS42L42_PLL_DIV_FRAC0:
242 case CS42L42_PLL_DIV_FRAC1:
243 case CS42L42_PLL_DIV_FRAC2:
244 case CS42L42_PLL_DIV_INT:
245 case CS42L42_PLL_CTL3:
246 case CS42L42_PLL_CAL_RATIO:
247 case CS42L42_PLL_CTL4:
248 case CS42L42_LOAD_DET_RCSTAT:
249 case CS42L42_LOAD_DET_DONE:
250 case CS42L42_LOAD_DET_EN:
251 case CS42L42_HSBIAS_SC_AUTOCTL:
252 case CS42L42_WAKE_CTL:
253 case CS42L42_ADC_DISABLE_MUTE:
254 case CS42L42_TIPSENSE_CTL:
255 case CS42L42_MISC_DET_CTL:
256 case CS42L42_MIC_DET_CTL1:
257 case CS42L42_MIC_DET_CTL2:
258 case CS42L42_DET_STATUS1:
259 case CS42L42_DET_STATUS2:
260 case CS42L42_DET_INT1_MASK:
261 case CS42L42_DET_INT2_MASK:
262 case CS42L42_HS_BIAS_CTL:
263 case CS42L42_ADC_CTL:
264 case CS42L42_ADC_VOLUME:
265 case CS42L42_ADC_WNF_HPF_CTL:
266 case CS42L42_DAC_CTL1:
267 case CS42L42_DAC_CTL2:
268 case CS42L42_HP_CTL:
269 case CS42L42_CLASSH_CTL:
270 case CS42L42_MIXER_CHA_VOL:
271 case CS42L42_MIXER_ADC_VOL:
272 case CS42L42_MIXER_CHB_VOL:
273 case CS42L42_EQ_COEF_IN0:
274 case CS42L42_EQ_COEF_IN1:
275 case CS42L42_EQ_COEF_IN2:
276 case CS42L42_EQ_COEF_IN3:
277 case CS42L42_EQ_COEF_RW:
278 case CS42L42_EQ_COEF_OUT0:
279 case CS42L42_EQ_COEF_OUT1:
280 case CS42L42_EQ_COEF_OUT2:
281 case CS42L42_EQ_COEF_OUT3:
282 case CS42L42_EQ_INIT_STAT:
283 case CS42L42_EQ_START_FILT:
284 case CS42L42_EQ_MUTE_CTL:
285 case CS42L42_SP_RX_CH_SEL:
286 case CS42L42_SP_RX_ISOC_CTL:
287 case CS42L42_SP_RX_FS:
288 case CS42l42_SPDIF_CH_SEL:
289 case CS42L42_SP_TX_ISOC_CTL:
290 case CS42L42_SP_TX_FS:
291 case CS42L42_SPDIF_SW_CTL1:
292 case CS42L42_SRC_SDIN_FS:
293 case CS42L42_SRC_SDOUT_FS:
294 case CS42L42_SOFT_RESET_REBOOT:
295 case CS42L42_SPDIF_CTL1:
296 case CS42L42_SPDIF_CTL2:
297 case CS42L42_SPDIF_CTL3:
298 case CS42L42_SPDIF_CTL4:
299 case CS42L42_ASP_TX_SZ_EN:
300 case CS42L42_ASP_TX_CH_EN:
301 case CS42L42_ASP_TX_CH_AP_RES:
302 case CS42L42_ASP_TX_CH1_BIT_MSB:
303 case CS42L42_ASP_TX_CH1_BIT_LSB:
304 case CS42L42_ASP_TX_HIZ_DLY_CFG:
305 case CS42L42_ASP_TX_CH2_BIT_MSB:
306 case CS42L42_ASP_TX_CH2_BIT_LSB:
307 case CS42L42_ASP_RX_DAI0_EN:
308 case CS42L42_ASP_RX_DAI0_CH1_AP_RES:
309 case CS42L42_ASP_RX_DAI0_CH1_BIT_MSB:
310 case CS42L42_ASP_RX_DAI0_CH1_BIT_LSB:
311 case CS42L42_ASP_RX_DAI0_CH2_AP_RES:
312 case CS42L42_ASP_RX_DAI0_CH2_BIT_MSB:
313 case CS42L42_ASP_RX_DAI0_CH2_BIT_LSB:
314 case CS42L42_ASP_RX_DAI0_CH3_AP_RES:
315 case CS42L42_ASP_RX_DAI0_CH3_BIT_MSB:
316 case CS42L42_ASP_RX_DAI0_CH3_BIT_LSB:
317 case CS42L42_ASP_RX_DAI0_CH4_AP_RES:
318 case CS42L42_ASP_RX_DAI0_CH4_BIT_MSB:
319 case CS42L42_ASP_RX_DAI0_CH4_BIT_LSB:
320 case CS42L42_ASP_RX_DAI1_CH1_AP_RES:
321 case CS42L42_ASP_RX_DAI1_CH1_BIT_MSB:
322 case CS42L42_ASP_RX_DAI1_CH1_BIT_LSB:
323 case CS42L42_ASP_RX_DAI1_CH2_AP_RES:
324 case CS42L42_ASP_RX_DAI1_CH2_BIT_MSB:
325 case CS42L42_ASP_RX_DAI1_CH2_BIT_LSB:
326 case CS42L42_SUB_REVID:
327 return true;
328 default:
329 return false;
330 }
331}
332EXPORT_SYMBOL_NS_GPL(cs42l42_readable_register, "SND_SOC_CS42L42_CORE");
333
334bool cs42l42_volatile_register(struct device *dev, unsigned int reg)
335{
336 switch (reg) {
337 case CS42L42_DEVID_AB:
338 case CS42L42_DEVID_CD:
339 case CS42L42_DEVID_E:
340 case CS42L42_MCLK_STATUS:
341 case CS42L42_OSC_SWITCH_STATUS:
342 case CS42L42_TRSENSE_STATUS:
343 case CS42L42_HS_DET_STATUS:
344 case CS42L42_ADC_OVFL_STATUS:
345 case CS42L42_MIXER_STATUS:
346 case CS42L42_SRC_STATUS:
347 case CS42L42_ASP_RX_STATUS:
348 case CS42L42_ASP_TX_STATUS:
349 case CS42L42_CODEC_STATUS:
350 case CS42L42_DET_INT_STATUS1:
351 case CS42L42_DET_INT_STATUS2:
352 case CS42L42_SRCPL_INT_STATUS:
353 case CS42L42_VPMON_STATUS:
354 case CS42L42_PLL_LOCK_STATUS:
355 case CS42L42_TSRS_PLUG_STATUS:
356 case CS42L42_LOAD_DET_RCSTAT:
357 case CS42L42_LOAD_DET_DONE:
358 case CS42L42_DET_STATUS1:
359 case CS42L42_DET_STATUS2:
360 case CS42L42_SOFT_RESET_REBOOT:
361 return true;
362 default:
363 return false;
364 }
365}
366EXPORT_SYMBOL_NS_GPL(cs42l42_volatile_register, "SND_SOC_CS42L42_CORE");
367
368const struct regmap_range_cfg cs42l42_page_range = {
369 .name = "Pages",
370 .range_min = 0,
371 .range_max = CS42L42_MAX_REGISTER,
372 .selector_reg = CS42L42_PAGE_REGISTER,
373 .selector_mask = 0xff,
374 .selector_shift = 0,
375 .window_start = 0,
376 .window_len = 256,
377};
378EXPORT_SYMBOL_NS_GPL(cs42l42_page_range, "SND_SOC_CS42L42_CORE");
379
380const struct regmap_config cs42l42_regmap = {
381 .reg_bits = 8,
382 .val_bits = 8,
383
384 .readable_reg = cs42l42_readable_register,
385 .volatile_reg = cs42l42_volatile_register,
386
387 .ranges = &cs42l42_page_range,
388 .num_ranges = 1,
389
390 .max_register = CS42L42_MAX_REGISTER,
391 .reg_defaults = cs42l42_reg_defaults,
392 .num_reg_defaults = ARRAY_SIZE(cs42l42_reg_defaults),
393 .cache_type = REGCACHE_MAPLE,
394
395 .use_single_read = true,
396 .use_single_write = true,
397};
398EXPORT_SYMBOL_NS_GPL(cs42l42_regmap, "SND_SOC_CS42L42_CORE");
399
400static DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 100, true);
401static DECLARE_TLV_DB_SCALE(mixer_tlv, -6300, 100, true);
402
403static int cs42l42_slow_start_put(struct snd_kcontrol *kcontrol,
404 struct snd_ctl_elem_value *ucontrol)
405{
406 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
407 u8 val;
408
409 /* all bits of SLOW_START_EN must change together */
410 switch (ucontrol->value.integer.value[0]) {
411 case 0:
412 val = 0;
413 break;
414 case 1:
415 val = CS42L42_SLOW_START_EN_MASK;
416 break;
417 default:
418 return -EINVAL;
419 }
420
421 return snd_soc_component_update_bits(component, CS42L42_SLOW_START_ENABLE,
422 CS42L42_SLOW_START_EN_MASK, val);
423}
424
425static const char * const cs42l42_hpf_freq_text[] = {
426 "1.86Hz", "120Hz", "235Hz", "466Hz"
427};
428
429static SOC_ENUM_SINGLE_DECL(cs42l42_hpf_freq_enum, CS42L42_ADC_WNF_HPF_CTL,
430 CS42L42_ADC_HPF_CF_SHIFT,
431 cs42l42_hpf_freq_text);
432
433static const char * const cs42l42_wnf3_freq_text[] = {
434 "160Hz", "180Hz", "200Hz", "220Hz",
435 "240Hz", "260Hz", "280Hz", "300Hz"
436};
437
438static SOC_ENUM_SINGLE_DECL(cs42l42_wnf3_freq_enum, CS42L42_ADC_WNF_HPF_CTL,
439 CS42L42_ADC_WNF_CF_SHIFT,
440 cs42l42_wnf3_freq_text);
441
442static const struct snd_kcontrol_new cs42l42_snd_controls[] = {
443 /* ADC Volume and Filter Controls */
444 SOC_SINGLE("ADC Notch Switch", CS42L42_ADC_CTL,
445 CS42L42_ADC_NOTCH_DIS_SHIFT, true, true),
446 SOC_SINGLE("ADC Weak Force Switch", CS42L42_ADC_CTL,
447 CS42L42_ADC_FORCE_WEAK_VCM_SHIFT, true, false),
448 SOC_SINGLE("ADC Invert Switch", CS42L42_ADC_CTL,
449 CS42L42_ADC_INV_SHIFT, true, false),
450 SOC_SINGLE("ADC Boost Switch", CS42L42_ADC_CTL,
451 CS42L42_ADC_DIG_BOOST_SHIFT, true, false),
452 SOC_SINGLE_S8_TLV("ADC Volume", CS42L42_ADC_VOLUME, -97, 12, adc_tlv),
453 SOC_SINGLE("ADC WNF Switch", CS42L42_ADC_WNF_HPF_CTL,
454 CS42L42_ADC_WNF_EN_SHIFT, true, false),
455 SOC_SINGLE("ADC HPF Switch", CS42L42_ADC_WNF_HPF_CTL,
456 CS42L42_ADC_HPF_EN_SHIFT, true, false),
457 SOC_ENUM("HPF Corner Freq", cs42l42_hpf_freq_enum),
458 SOC_ENUM("WNF 3dB Freq", cs42l42_wnf3_freq_enum),
459
460 /* DAC Volume and Filter Controls */
461 SOC_SINGLE("DACA Invert Switch", CS42L42_DAC_CTL1,
462 CS42L42_DACA_INV_SHIFT, true, false),
463 SOC_SINGLE("DACB Invert Switch", CS42L42_DAC_CTL1,
464 CS42L42_DACB_INV_SHIFT, true, false),
465 SOC_SINGLE("DAC HPF Switch", CS42L42_DAC_CTL2,
466 CS42L42_DAC_HPF_EN_SHIFT, true, false),
467 SOC_DOUBLE_R_TLV("Mixer Volume", CS42L42_MIXER_CHA_VOL,
468 CS42L42_MIXER_CHB_VOL, CS42L42_MIXER_CH_VOL_SHIFT,
469 0x3f, 1, mixer_tlv),
470
471 SOC_SINGLE_EXT("Slow Start Switch", CS42L42_SLOW_START_ENABLE,
472 CS42L42_SLOW_START_EN_SHIFT, true, false,
473 snd_soc_get_volsw, cs42l42_slow_start_put),
474};
475
476static int cs42l42_hp_adc_ev(struct snd_soc_dapm_widget *w,
477 struct snd_kcontrol *kcontrol, int event)
478{
479 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
480 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
481
482 switch (event) {
483 case SND_SOC_DAPM_PRE_PMU:
484 cs42l42->hp_adc_up_pending = true;
485 break;
486 case SND_SOC_DAPM_POST_PMU:
487 /* Only need one delay if HP and ADC are both powering-up */
488 if (cs42l42->hp_adc_up_pending) {
489 usleep_range(CS42L42_HP_ADC_EN_TIME_US,
490 CS42L42_HP_ADC_EN_TIME_US + 1000);
491 cs42l42->hp_adc_up_pending = false;
492 }
493 break;
494 default:
495 break;
496 }
497
498 return 0;
499}
500
501static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = {
502 /* Playback Path */
503 SND_SOC_DAPM_OUTPUT("HP"),
504 SND_SOC_DAPM_DAC_E("DAC", NULL, CS42L42_PWR_CTL1, CS42L42_HP_PDN_SHIFT, 1,
505 cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
506 SND_SOC_DAPM_MIXER("MIXER", CS42L42_PWR_CTL1, CS42L42_MIXER_PDN_SHIFT, 1, NULL, 0),
507 SND_SOC_DAPM_AIF_IN("SDIN1", NULL, 0, SND_SOC_NOPM, 0, 0),
508 SND_SOC_DAPM_AIF_IN("SDIN2", NULL, 1, SND_SOC_NOPM, 0, 0),
509
510 /* Playback Requirements */
511 SND_SOC_DAPM_SUPPLY("ASP DAI0", CS42L42_PWR_CTL1, CS42L42_ASP_DAI_PDN_SHIFT, 1, NULL, 0),
512
513 /* Capture Path */
514 SND_SOC_DAPM_INPUT("HS"),
515 SND_SOC_DAPM_ADC_E("ADC", NULL, CS42L42_PWR_CTL1, CS42L42_ADC_PDN_SHIFT, 1,
516 cs42l42_hp_adc_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
517 SND_SOC_DAPM_AIF_OUT("SDOUT1", NULL, 0, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH1_SHIFT, 0),
518 SND_SOC_DAPM_AIF_OUT("SDOUT2", NULL, 1, CS42L42_ASP_TX_CH_EN, CS42L42_ASP_TX0_CH2_SHIFT, 0),
519
520 /* Capture Requirements */
521 SND_SOC_DAPM_SUPPLY("ASP DAO0", CS42L42_PWR_CTL1, CS42L42_ASP_DAO_PDN_SHIFT, 1, NULL, 0),
522 SND_SOC_DAPM_SUPPLY("ASP TX EN", CS42L42_ASP_TX_SZ_EN, CS42L42_ASP_TX_EN_SHIFT, 0, NULL, 0),
523
524 /* Playback/Capture Requirements */
525 SND_SOC_DAPM_SUPPLY("SCLK", CS42L42_ASP_CLK_CFG, CS42L42_ASP_SCLK_EN_SHIFT, 0, NULL, 0),
526
527 /* Soundwire SRC power control */
528 SND_SOC_DAPM_PGA("DACSRC", CS42L42_PWR_CTL2, CS42L42_DAC_SRC_PDNB_SHIFT, 0, NULL, 0),
529 SND_SOC_DAPM_PGA("ADCSRC", CS42L42_PWR_CTL2, CS42L42_ADC_SRC_PDNB_SHIFT, 0, NULL, 0),
530};
531
532static const struct snd_soc_dapm_route cs42l42_audio_map[] = {
533 /* Playback Path */
534 {"HP", NULL, "DAC"},
535 {"DAC", NULL, "MIXER"},
536 {"MIXER", NULL, "SDIN1"},
537 {"MIXER", NULL, "SDIN2"},
538 {"SDIN1", NULL, "Playback"},
539 {"SDIN2", NULL, "Playback"},
540
541 /* Playback Requirements */
542 {"SDIN1", NULL, "ASP DAI0"},
543 {"SDIN2", NULL, "ASP DAI0"},
544 {"SDIN1", NULL, "SCLK"},
545 {"SDIN2", NULL, "SCLK"},
546
547 /* Capture Path */
548 {"ADC", NULL, "HS"},
549 { "SDOUT1", NULL, "ADC" },
550 { "SDOUT2", NULL, "ADC" },
551 { "Capture", NULL, "SDOUT1" },
552 { "Capture", NULL, "SDOUT2" },
553
554 /* Capture Requirements */
555 { "SDOUT1", NULL, "ASP DAO0" },
556 { "SDOUT2", NULL, "ASP DAO0" },
557 { "SDOUT1", NULL, "SCLK" },
558 { "SDOUT2", NULL, "SCLK" },
559 { "SDOUT1", NULL, "ASP TX EN" },
560 { "SDOUT2", NULL, "ASP TX EN" },
561};
562
563static int cs42l42_set_jack(struct snd_soc_component *component, struct snd_soc_jack *jk, void *d)
564{
565 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
566
567 /* Prevent race with interrupt handler */
568 mutex_lock(&cs42l42->irq_lock);
569 cs42l42->jack = jk;
570
571 if (jk) {
572 switch (cs42l42->hs_type) {
573 case CS42L42_PLUG_CTIA:
574 case CS42L42_PLUG_OMTP:
575 snd_soc_jack_report(jack: jk, status: SND_JACK_HEADSET, mask: SND_JACK_HEADSET);
576 break;
577 case CS42L42_PLUG_HEADPHONE:
578 snd_soc_jack_report(jack: jk, status: SND_JACK_HEADPHONE, mask: SND_JACK_HEADPHONE);
579 break;
580 default:
581 break;
582 }
583 }
584 mutex_unlock(lock: &cs42l42->irq_lock);
585
586 return 0;
587}
588
589const struct snd_soc_component_driver cs42l42_soc_component = {
590 .set_jack = cs42l42_set_jack,
591 .dapm_widgets = cs42l42_dapm_widgets,
592 .num_dapm_widgets = ARRAY_SIZE(cs42l42_dapm_widgets),
593 .dapm_routes = cs42l42_audio_map,
594 .num_dapm_routes = ARRAY_SIZE(cs42l42_audio_map),
595 .controls = cs42l42_snd_controls,
596 .num_controls = ARRAY_SIZE(cs42l42_snd_controls),
597 .endianness = 1,
598};
599EXPORT_SYMBOL_NS_GPL(cs42l42_soc_component, "SND_SOC_CS42L42_CORE");
600
601/* Switch to SCLK. Atomic delay after the write to allow the switch to complete. */
602static const struct reg_sequence cs42l42_to_sclk_seq[] = {
603 {
604 .reg = CS42L42_OSC_SWITCH,
605 .def = CS42L42_SCLK_PRESENT_MASK,
606 .delay_us = CS42L42_CLOCK_SWITCH_DELAY_US,
607 },
608};
609
610/* Switch to OSC. Atomic delay after the write to allow the switch to complete. */
611static const struct reg_sequence cs42l42_to_osc_seq[] = {
612 {
613 .reg = CS42L42_OSC_SWITCH,
614 .def = 0,
615 .delay_us = CS42L42_CLOCK_SWITCH_DELAY_US,
616 },
617};
618
619struct cs42l42_pll_params {
620 u32 sclk;
621 u8 mclk_src_sel;
622 u8 sclk_prediv;
623 u8 pll_div_int;
624 u32 pll_div_frac;
625 u8 pll_mode;
626 u8 pll_divout;
627 u32 mclk_int;
628 u8 pll_cal_ratio;
629 u8 n;
630};
631
632/*
633 * Common PLL Settings for given SCLK
634 * Table 4-5 from the Datasheet
635 */
636static const struct cs42l42_pll_params pll_ratio_table[] = {
637 { 1411200, 1, 0x00, 0x80, 0x000000, 0x03, 0x10, 11289600, 128, 2},
638 { 1536000, 1, 0x00, 0x7D, 0x000000, 0x03, 0x10, 12000000, 125, 2},
639 { 2304000, 1, 0x00, 0x55, 0xC00000, 0x02, 0x10, 12288000, 85, 2},
640 { 2400000, 1, 0x00, 0x50, 0x000000, 0x03, 0x10, 12000000, 80, 2},
641 { 2822400, 1, 0x00, 0x40, 0x000000, 0x03, 0x10, 11289600, 128, 1},
642 { 3000000, 1, 0x00, 0x40, 0x000000, 0x03, 0x10, 12000000, 128, 1},
643 { 3072000, 1, 0x00, 0x3E, 0x800000, 0x03, 0x10, 12000000, 125, 1},
644 { 4000000, 1, 0x00, 0x30, 0x800000, 0x03, 0x10, 12000000, 96, 1},
645 { 4096000, 1, 0x00, 0x2E, 0xE00000, 0x03, 0x10, 12000000, 94, 1},
646 { 4800000, 1, 0x01, 0x50, 0x000000, 0x03, 0x10, 12000000, 80, 2},
647 { 4800000, 1, 0x01, 0x50, 0x000000, 0x01, 0x10, 12288000, 82, 2},
648 { 5644800, 1, 0x01, 0x40, 0x000000, 0x03, 0x10, 11289600, 128, 1},
649 { 6000000, 1, 0x01, 0x40, 0x000000, 0x03, 0x10, 12000000, 128, 1},
650 { 6144000, 1, 0x01, 0x3E, 0x800000, 0x03, 0x10, 12000000, 125, 1},
651 { 6144000, 1, 0x01, 0x40, 0x000000, 0x03, 0x10, 12288000, 128, 1},
652 { 9600000, 1, 0x02, 0x50, 0x000000, 0x03, 0x10, 12000000, 80, 2},
653 { 9600000, 1, 0x02, 0x50, 0x000000, 0x01, 0x10, 12288000, 82, 2},
654 { 11289600, 0, 0, 0, 0, 0, 0, 11289600, 0, 1},
655 { 12000000, 0, 0, 0, 0, 0, 0, 12000000, 0, 1},
656 { 12288000, 0, 0, 0, 0, 0, 0, 12288000, 0, 1},
657 { 19200000, 1, 0x03, 0x50, 0x000000, 0x03, 0x10, 12000000, 80, 2},
658 { 19200000, 1, 0x03, 0x50, 0x000000, 0x01, 0x10, 12288000, 82, 2},
659 { 22579200, 1, 0x03, 0x40, 0x000000, 0x03, 0x10, 11289600, 128, 1},
660 { 24000000, 1, 0x03, 0x40, 0x000000, 0x03, 0x10, 12000000, 128, 1},
661 { 24576000, 1, 0x03, 0x40, 0x000000, 0x03, 0x10, 12288000, 128, 1}
662};
663
664int cs42l42_pll_config(struct snd_soc_component *component, unsigned int clk,
665 unsigned int sample_rate)
666{
667 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
668 int i;
669
670 /* Don't reconfigure if there is an audio stream running */
671 if (cs42l42->stream_use) {
672 if (pll_ratio_table[cs42l42->pll_config].sclk == clk)
673 return 0;
674 else
675 return -EBUSY;
676 }
677
678 for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) {
679 /* MCLKint must be a multiple of the sample rate */
680 if (pll_ratio_table[i].mclk_int % sample_rate)
681 continue;
682
683 if (pll_ratio_table[i].sclk == clk) {
684 cs42l42->pll_config = i;
685
686 /* Configure the internal sample rate */
687 snd_soc_component_update_bits(component, CS42L42_MCLK_CTL,
688 CS42L42_INTERNAL_FS_MASK,
689 val: ((pll_ratio_table[i].mclk_int !=
690 12000000) &&
691 (pll_ratio_table[i].mclk_int !=
692 24000000)) <<
693 CS42L42_INTERNAL_FS_SHIFT);
694 if (pll_ratio_table[i].mclk_src_sel == 0) {
695 /* Pass the clock straight through */
696 snd_soc_component_update_bits(component,
697 CS42L42_PLL_CTL1,
698 CS42L42_PLL_START_MASK, val: 0);
699 } else {
700 /* Configure PLL per table 4-5 */
701 snd_soc_component_update_bits(component,
702 CS42L42_PLL_DIV_CFG1,
703 CS42L42_SCLK_PREDIV_MASK,
704 val: pll_ratio_table[i].sclk_prediv
705 << CS42L42_SCLK_PREDIV_SHIFT);
706 snd_soc_component_update_bits(component,
707 CS42L42_PLL_DIV_INT,
708 CS42L42_PLL_DIV_INT_MASK,
709 val: pll_ratio_table[i].pll_div_int
710 << CS42L42_PLL_DIV_INT_SHIFT);
711 snd_soc_component_update_bits(component,
712 CS42L42_PLL_DIV_FRAC0,
713 CS42L42_PLL_DIV_FRAC_MASK,
714 CS42L42_FRAC0_VAL(
715 pll_ratio_table[i].pll_div_frac)
716 << CS42L42_PLL_DIV_FRAC_SHIFT);
717 snd_soc_component_update_bits(component,
718 CS42L42_PLL_DIV_FRAC1,
719 CS42L42_PLL_DIV_FRAC_MASK,
720 CS42L42_FRAC1_VAL(
721 pll_ratio_table[i].pll_div_frac)
722 << CS42L42_PLL_DIV_FRAC_SHIFT);
723 snd_soc_component_update_bits(component,
724 CS42L42_PLL_DIV_FRAC2,
725 CS42L42_PLL_DIV_FRAC_MASK,
726 CS42L42_FRAC2_VAL(
727 pll_ratio_table[i].pll_div_frac)
728 << CS42L42_PLL_DIV_FRAC_SHIFT);
729 snd_soc_component_update_bits(component,
730 CS42L42_PLL_CTL4,
731 CS42L42_PLL_MODE_MASK,
732 val: pll_ratio_table[i].pll_mode
733 << CS42L42_PLL_MODE_SHIFT);
734 snd_soc_component_update_bits(component,
735 CS42L42_PLL_CTL3,
736 CS42L42_PLL_DIVOUT_MASK,
737 val: (pll_ratio_table[i].pll_divout * pll_ratio_table[i].n)
738 << CS42L42_PLL_DIVOUT_SHIFT);
739 snd_soc_component_update_bits(component,
740 CS42L42_PLL_CAL_RATIO,
741 CS42L42_PLL_CAL_RATIO_MASK,
742 val: pll_ratio_table[i].pll_cal_ratio
743 << CS42L42_PLL_CAL_RATIO_SHIFT);
744 }
745 return 0;
746 }
747 }
748
749 return -EINVAL;
750}
751EXPORT_SYMBOL_NS_GPL(cs42l42_pll_config, "SND_SOC_CS42L42_CORE");
752
753void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate)
754{
755 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
756 unsigned int fs;
757
758 /* Don't reconfigure if there is an audio stream running */
759 if (cs42l42->stream_use)
760 return;
761
762 /* SRC MCLK must be as close as possible to 125 * sample rate */
763 if (sample_rate <= 48000)
764 fs = CS42L42_CLK_IASRC_SEL_6;
765 else
766 fs = CS42L42_CLK_IASRC_SEL_12;
767
768 /* Set the sample rates (96k or lower) */
769 snd_soc_component_update_bits(component,
770 CS42L42_FS_RATE_EN,
771 CS42L42_FS_EN_MASK,
772 val: (CS42L42_FS_EN_IASRC_96K |
773 CS42L42_FS_EN_OASRC_96K) <<
774 CS42L42_FS_EN_SHIFT);
775
776 snd_soc_component_update_bits(component,
777 CS42L42_IN_ASRC_CLK,
778 CS42L42_CLK_IASRC_SEL_MASK,
779 val: fs << CS42L42_CLK_IASRC_SEL_SHIFT);
780 snd_soc_component_update_bits(component,
781 CS42L42_OUT_ASRC_CLK,
782 CS42L42_CLK_OASRC_SEL_MASK,
783 val: fs << CS42L42_CLK_OASRC_SEL_SHIFT);
784}
785EXPORT_SYMBOL_NS_GPL(cs42l42_src_config, "SND_SOC_CS42L42_CORE");
786
787static int cs42l42_asp_config(struct snd_soc_component *component,
788 unsigned int sclk, unsigned int sample_rate)
789{
790 u32 fsync = sclk / sample_rate;
791
792 /* Set up the LRCLK */
793 if (((fsync * sample_rate) != sclk) || ((fsync % 2) != 0)) {
794 dev_err(component->dev,
795 "Unsupported sclk %d/sample rate %d\n",
796 sclk,
797 sample_rate);
798 return -EINVAL;
799 }
800 /* Set the LRCLK period */
801 snd_soc_component_update_bits(component,
802 CS42L42_FSYNC_P_LOWER,
803 CS42L42_FSYNC_PERIOD_MASK,
804 CS42L42_FRAC0_VAL(fsync - 1) <<
805 CS42L42_FSYNC_PERIOD_SHIFT);
806 snd_soc_component_update_bits(component,
807 CS42L42_FSYNC_P_UPPER,
808 CS42L42_FSYNC_PERIOD_MASK,
809 CS42L42_FRAC1_VAL(fsync - 1) <<
810 CS42L42_FSYNC_PERIOD_SHIFT);
811 /* Set the LRCLK to 50% duty cycle */
812 fsync = fsync / 2;
813 snd_soc_component_update_bits(component,
814 CS42L42_FSYNC_PW_LOWER,
815 CS42L42_FSYNC_PULSE_WIDTH_MASK,
816 CS42L42_FRAC0_VAL(fsync - 1) <<
817 CS42L42_FSYNC_PULSE_WIDTH_SHIFT);
818 snd_soc_component_update_bits(component,
819 CS42L42_FSYNC_PW_UPPER,
820 CS42L42_FSYNC_PULSE_WIDTH_MASK,
821 CS42L42_FRAC1_VAL(fsync - 1) <<
822 CS42L42_FSYNC_PULSE_WIDTH_SHIFT);
823
824 return 0;
825}
826
827static int cs42l42_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
828{
829 struct snd_soc_component *component = codec_dai->component;
830 u32 asp_cfg_val = 0;
831
832 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
833 case SND_SOC_DAIFMT_CBC_CFP:
834 asp_cfg_val |= CS42L42_ASP_MASTER_MODE <<
835 CS42L42_ASP_MODE_SHIFT;
836 break;
837 case SND_SOC_DAIFMT_CBC_CFC:
838 asp_cfg_val |= CS42L42_ASP_SLAVE_MODE <<
839 CS42L42_ASP_MODE_SHIFT;
840 break;
841 default:
842 return -EINVAL;
843 }
844
845 /* interface format */
846 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
847 case SND_SOC_DAIFMT_I2S:
848 /*
849 * 5050 mode, frame starts on falling edge of LRCLK,
850 * frame delayed by 1.0 SCLKs
851 */
852 snd_soc_component_update_bits(component,
853 CS42L42_ASP_FRM_CFG,
854 CS42L42_ASP_STP_MASK |
855 CS42L42_ASP_5050_MASK |
856 CS42L42_ASP_FSD_MASK,
857 CS42L42_ASP_5050_MASK |
858 (CS42L42_ASP_FSD_1_0 <<
859 CS42L42_ASP_FSD_SHIFT));
860 break;
861 default:
862 return -EINVAL;
863 }
864
865 /* Bitclock/frame inversion */
866 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
867 case SND_SOC_DAIFMT_NB_NF:
868 asp_cfg_val |= CS42L42_ASP_SCPOL_NOR << CS42L42_ASP_SCPOL_SHIFT;
869 break;
870 case SND_SOC_DAIFMT_NB_IF:
871 asp_cfg_val |= CS42L42_ASP_SCPOL_NOR << CS42L42_ASP_SCPOL_SHIFT;
872 asp_cfg_val |= CS42L42_ASP_LCPOL_INV << CS42L42_ASP_LCPOL_SHIFT;
873 break;
874 case SND_SOC_DAIFMT_IB_NF:
875 break;
876 case SND_SOC_DAIFMT_IB_IF:
877 asp_cfg_val |= CS42L42_ASP_LCPOL_INV << CS42L42_ASP_LCPOL_SHIFT;
878 break;
879 }
880
881 snd_soc_component_update_bits(component, CS42L42_ASP_CLK_CFG, CS42L42_ASP_MODE_MASK |
882 CS42L42_ASP_SCPOL_MASK |
883 CS42L42_ASP_LCPOL_MASK,
884 val: asp_cfg_val);
885
886 return 0;
887}
888
889static int cs42l42_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
890{
891 struct snd_soc_component *component = dai->component;
892 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
893
894 /*
895 * Sample rates < 44.1 kHz would produce an out-of-range SCLK with
896 * a standard I2S frame. If the machine driver sets SCLK it must be
897 * legal.
898 */
899 if (cs42l42->sclk)
900 return 0;
901
902 /* Machine driver has not set a SCLK, limit bottom end to 44.1 kHz */
903 return snd_pcm_hw_constraint_minmax(runtime: substream->runtime,
904 SNDRV_PCM_HW_PARAM_RATE,
905 min: 44100, max: 96000);
906}
907
908static int cs42l42_pcm_hw_params(struct snd_pcm_substream *substream,
909 struct snd_pcm_hw_params *params,
910 struct snd_soc_dai *dai)
911{
912 struct snd_soc_component *component = dai->component;
913 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
914 unsigned int channels = params_channels(p: params);
915 unsigned int width = (params_width(p: params) / 8) - 1;
916 unsigned int sample_rate = params_rate(p: params);
917 unsigned int slot_width = 0;
918 unsigned int val = 0;
919 unsigned int bclk;
920 int ret;
921
922 if (cs42l42->bclk_ratio) {
923 /* machine driver has set the BCLK/samp-rate ratio */
924 bclk = cs42l42->bclk_ratio * params_rate(p: params);
925 } else if (cs42l42->sclk) {
926 /* machine driver has set the SCLK */
927 bclk = cs42l42->sclk;
928 } else {
929 /*
930 * Assume 24-bit samples are in 32-bit slots, to prevent SCLK being
931 * more than assumed (which would result in overclocking).
932 */
933 if (params_width(p: params) == 24)
934 slot_width = 32;
935
936 /* I2S frame always has multiple of 2 channels */
937 bclk = snd_soc_tdm_params_to_bclk(params, tdm_width: slot_width, tdm_slots: 0, slot_multiple: 2);
938 }
939
940 switch (substream->stream) {
941 case SNDRV_PCM_STREAM_CAPTURE:
942 /* channel 2 on high LRCLK */
943 val = CS42L42_ASP_TX_CH2_AP_MASK |
944 (width << CS42L42_ASP_TX_CH2_RES_SHIFT) |
945 (width << CS42L42_ASP_TX_CH1_RES_SHIFT);
946
947 snd_soc_component_update_bits(component, CS42L42_ASP_TX_CH_AP_RES,
948 CS42L42_ASP_TX_CH1_AP_MASK | CS42L42_ASP_TX_CH2_AP_MASK |
949 CS42L42_ASP_TX_CH2_RES_MASK | CS42L42_ASP_TX_CH1_RES_MASK, val);
950 break;
951 case SNDRV_PCM_STREAM_PLAYBACK:
952 val |= width << CS42L42_ASP_RX_CH_RES_SHIFT;
953 /* channel 1 on low LRCLK */
954 snd_soc_component_update_bits(component, CS42L42_ASP_RX_DAI0_CH1_AP_RES,
955 CS42L42_ASP_RX_CH_AP_MASK |
956 CS42L42_ASP_RX_CH_RES_MASK, val);
957 /* Channel 2 on high LRCLK */
958 val |= CS42L42_ASP_RX_CH_AP_HI << CS42L42_ASP_RX_CH_AP_SHIFT;
959 snd_soc_component_update_bits(component, CS42L42_ASP_RX_DAI0_CH2_AP_RES,
960 CS42L42_ASP_RX_CH_AP_MASK |
961 CS42L42_ASP_RX_CH_RES_MASK, val);
962
963 /* Channel B comes from the last active channel */
964 snd_soc_component_update_bits(component, CS42L42_SP_RX_CH_SEL,
965 CS42L42_SP_RX_CHB_SEL_MASK,
966 val: (channels - 1) << CS42L42_SP_RX_CHB_SEL_SHIFT);
967
968 /* Both LRCLK slots must be enabled */
969 snd_soc_component_update_bits(component, CS42L42_ASP_RX_DAI0_EN,
970 CS42L42_ASP_RX0_CH_EN_MASK,
971 BIT(CS42L42_ASP_RX0_CH1_SHIFT) |
972 BIT(CS42L42_ASP_RX0_CH2_SHIFT));
973 break;
974 default:
975 break;
976 }
977
978 ret = cs42l42_pll_config(component, bclk, sample_rate);
979 if (ret)
980 return ret;
981
982 ret = cs42l42_asp_config(component, sclk: bclk, sample_rate);
983 if (ret)
984 return ret;
985
986 cs42l42_src_config(component, sample_rate);
987
988 return 0;
989}
990
991static int cs42l42_set_sysclk(struct snd_soc_dai *dai,
992 int clk_id, unsigned int freq, int dir)
993{
994 struct snd_soc_component *component = dai->component;
995 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
996 int i;
997
998 if (freq == 0) {
999 cs42l42->sclk = 0;
1000 return 0;
1001 }
1002
1003 for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) {
1004 if (pll_ratio_table[i].sclk == freq) {
1005 cs42l42->sclk = freq;
1006 return 0;
1007 }
1008 }
1009
1010 dev_err(component->dev, "SCLK %u not supported\n", freq);
1011
1012 return -EINVAL;
1013}
1014
1015static int cs42l42_set_bclk_ratio(struct snd_soc_dai *dai,
1016 unsigned int bclk_ratio)
1017{
1018 struct snd_soc_component *component = dai->component;
1019 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
1020
1021 cs42l42->bclk_ratio = bclk_ratio;
1022
1023 return 0;
1024}
1025
1026int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
1027{
1028 struct snd_soc_component *component = dai->component;
1029 struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(c: component);
1030 unsigned int regval;
1031 int ret;
1032
1033 if (mute) {
1034 /* Mute the headphone */
1035 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1036 snd_soc_component_update_bits(component, CS42L42_HP_CTL,
1037 CS42L42_HP_ANA_AMUTE_MASK |
1038 CS42L42_HP_ANA_BMUTE_MASK,
1039 CS42L42_HP_ANA_AMUTE_MASK |
1040 CS42L42_HP_ANA_BMUTE_MASK);
1041
1042 cs42l42->stream_use &= ~(1 << stream);
1043 if (!cs42l42->stream_use) {
1044 /*
1045 * Switch to the internal oscillator.
1046 * SCLK must remain running until after this clock switch.
1047 * Without a source of clock the I2C bus doesn't work.
1048 */
1049 regmap_multi_reg_write(map: cs42l42->regmap, regs: cs42l42_to_osc_seq,
1050 ARRAY_SIZE(cs42l42_to_osc_seq));
1051
1052 /* Must disconnect PLL before stopping it */
1053 snd_soc_component_update_bits(component,
1054 CS42L42_MCLK_SRC_SEL,
1055 CS42L42_MCLK_SRC_SEL_MASK,
1056 val: 0);
1057 usleep_range(min: 100, max: 200);
1058
1059 snd_soc_component_update_bits(component, CS42L42_PLL_CTL1,
1060 CS42L42_PLL_START_MASK, val: 0);
1061 }
1062 } else {
1063 if (!cs42l42->stream_use) {
1064 /* SCLK must be running before codec unmute.
1065 *
1066 * PLL must not be started with ADC and HP both off
1067 * otherwise the FILT+ supply will not charge properly.
1068 * DAPM widgets power-up before stream unmute so at least
1069 * one of the "DAC" or "ADC" widgets will already have
1070 * powered-up.
1071 */
1072 if (pll_ratio_table[cs42l42->pll_config].mclk_src_sel) {
1073 snd_soc_component_update_bits(component, CS42L42_PLL_CTL1,
1074 CS42L42_PLL_START_MASK, val: 1);
1075
1076 if (pll_ratio_table[cs42l42->pll_config].n > 1) {
1077 usleep_range(CS42L42_PLL_DIVOUT_TIME_US,
1078 CS42L42_PLL_DIVOUT_TIME_US * 2);
1079 regval = pll_ratio_table[cs42l42->pll_config].pll_divout;
1080 snd_soc_component_update_bits(component, CS42L42_PLL_CTL3,
1081 CS42L42_PLL_DIVOUT_MASK,
1082 val: regval <<
1083 CS42L42_PLL_DIVOUT_SHIFT);
1084 }
1085
1086 ret = regmap_read_poll_timeout(cs42l42->regmap,
1087 CS42L42_PLL_LOCK_STATUS,
1088 regval,
1089 (regval & 1),
1090 CS42L42_PLL_LOCK_POLL_US,
1091 CS42L42_PLL_LOCK_TIMEOUT_US);
1092 if (ret < 0)
1093 dev_warn(component->dev, "PLL failed to lock: %d\n", ret);
1094
1095 /* PLL must be running to drive glitchless switch logic */
1096 snd_soc_component_update_bits(component,
1097 CS42L42_MCLK_SRC_SEL,
1098 CS42L42_MCLK_SRC_SEL_MASK,
1099 CS42L42_MCLK_SRC_SEL_MASK);
1100 }
1101
1102 /* Mark SCLK as present, turn off internal oscillator */
1103 regmap_multi_reg_write(map: cs42l42->regmap, regs: cs42l42_to_sclk_seq,
1104 ARRAY_SIZE(cs42l42_to_sclk_seq));
1105 }
1106 cs42l42->stream_use |= 1 << stream;
1107
1108 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1109 /* Un-mute the headphone */
1110 snd_soc_component_update_bits(component, CS42L42_HP_CTL,
1111 CS42L42_HP_ANA_AMUTE_MASK |
1112 CS42L42_HP_ANA_BMUTE_MASK,
1113 val: 0);
1114 }
1115 }
1116
1117 return 0;
1118}
1119EXPORT_SYMBOL_NS_GPL(cs42l42_mute_stream, "SND_SOC_CS42L42_CORE");
1120
1121#define CS42L42_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1122 SNDRV_PCM_FMTBIT_S24_LE |\
1123 SNDRV_PCM_FMTBIT_S32_LE)
1124
1125static const struct snd_soc_dai_ops cs42l42_ops = {
1126 .startup = cs42l42_dai_startup,
1127 .hw_params = cs42l42_pcm_hw_params,
1128 .set_fmt = cs42l42_set_dai_fmt,
1129 .set_sysclk = cs42l42_set_sysclk,
1130 .set_bclk_ratio = cs42l42_set_bclk_ratio,
1131 .mute_stream = cs42l42_mute_stream,
1132};
1133
1134struct snd_soc_dai_driver cs42l42_dai = {
1135 .name = "cs42l42",
1136 .playback = {
1137 .stream_name = "Playback",
1138 .channels_min = 1,
1139 .channels_max = 2,
1140 .rates = SNDRV_PCM_RATE_8000_96000,
1141 .formats = CS42L42_FORMATS,
1142 },
1143 .capture = {
1144 .stream_name = "Capture",
1145 .channels_min = 1,
1146 .channels_max = 2,
1147 .rates = SNDRV_PCM_RATE_8000_96000,
1148 .formats = CS42L42_FORMATS,
1149 },
1150 .symmetric_rate = 1,
1151 .symmetric_sample_bits = 1,
1152 .ops = &cs42l42_ops,
1153};
1154EXPORT_SYMBOL_NS_GPL(cs42l42_dai, "SND_SOC_CS42L42_CORE");
1155
1156static void cs42l42_manual_hs_type_detect(struct cs42l42_private *cs42l42)
1157{
1158 unsigned int hs_det_status;
1159 unsigned int hs_det_comp1;
1160 unsigned int hs_det_comp2;
1161 unsigned int hs_det_sw;
1162
1163 /* Set hs detect to manual, active mode */
1164 regmap_update_bits(map: cs42l42->regmap,
1165 CS42L42_HSDET_CTL2,
1166 CS42L42_HSDET_CTRL_MASK |
1167 CS42L42_HSDET_SET_MASK |
1168 CS42L42_HSBIAS_REF_MASK |
1169 CS42L42_HSDET_AUTO_TIME_MASK,
1170 val: (1 << CS42L42_HSDET_CTRL_SHIFT) |
1171 (0 << CS42L42_HSDET_SET_SHIFT) |
1172 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1173 (0 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1174
1175 /* Configure HS DET comparator reference levels. */
1176 regmap_update_bits(map: cs42l42->regmap,
1177 CS42L42_HSDET_CTL1,
1178 CS42L42_HSDET_COMP1_LVL_MASK |
1179 CS42L42_HSDET_COMP2_LVL_MASK,
1180 val: (CS42L42_HSDET_COMP1_LVL_VAL << CS42L42_HSDET_COMP1_LVL_SHIFT) |
1181 (CS42L42_HSDET_COMP2_LVL_VAL << CS42L42_HSDET_COMP2_LVL_SHIFT));
1182
1183 /* Open the SW_HSB_HS3 switch and close SW_HSB_HS4 for a Type 1 headset. */
1184 regmap_write(map: cs42l42->regmap, CS42L42_HS_SWITCH_CTL, CS42L42_HSDET_SW_COMP1);
1185
1186 msleep(msecs: 100);
1187
1188 regmap_read(map: cs42l42->regmap, CS42L42_HS_DET_STATUS, val: &hs_det_status);
1189
1190 hs_det_comp1 = (hs_det_status & CS42L42_HSDET_COMP1_OUT_MASK) >>
1191 CS42L42_HSDET_COMP1_OUT_SHIFT;
1192 hs_det_comp2 = (hs_det_status & CS42L42_HSDET_COMP2_OUT_MASK) >>
1193 CS42L42_HSDET_COMP2_OUT_SHIFT;
1194
1195 /* Close the SW_HSB_HS3 switch for a Type 2 headset. */
1196 regmap_write(map: cs42l42->regmap, CS42L42_HS_SWITCH_CTL, CS42L42_HSDET_SW_COMP2);
1197
1198 msleep(msecs: 100);
1199
1200 regmap_read(map: cs42l42->regmap, CS42L42_HS_DET_STATUS, val: &hs_det_status);
1201
1202 hs_det_comp1 |= ((hs_det_status & CS42L42_HSDET_COMP1_OUT_MASK) >>
1203 CS42L42_HSDET_COMP1_OUT_SHIFT) << 1;
1204 hs_det_comp2 |= ((hs_det_status & CS42L42_HSDET_COMP2_OUT_MASK) >>
1205 CS42L42_HSDET_COMP2_OUT_SHIFT) << 1;
1206
1207 /* Use Comparator 1 with 1.25V Threshold. */
1208 switch (hs_det_comp1) {
1209 case CS42L42_HSDET_COMP_TYPE1:
1210 cs42l42->hs_type = CS42L42_PLUG_CTIA;
1211 hs_det_sw = CS42L42_HSDET_SW_TYPE1;
1212 break;
1213 case CS42L42_HSDET_COMP_TYPE2:
1214 cs42l42->hs_type = CS42L42_PLUG_OMTP;
1215 hs_det_sw = CS42L42_HSDET_SW_TYPE2;
1216 break;
1217 default:
1218 /* Fallback to Comparator 2 with 1.75V Threshold. */
1219 switch (hs_det_comp2) {
1220 case CS42L42_HSDET_COMP_TYPE1:
1221 cs42l42->hs_type = CS42L42_PLUG_CTIA;
1222 hs_det_sw = CS42L42_HSDET_SW_TYPE1;
1223 break;
1224 case CS42L42_HSDET_COMP_TYPE2:
1225 cs42l42->hs_type = CS42L42_PLUG_OMTP;
1226 hs_det_sw = CS42L42_HSDET_SW_TYPE2;
1227 break;
1228 /* Detect Type 3 and Type 4 Headsets as Headphones */
1229 default:
1230 cs42l42->hs_type = CS42L42_PLUG_HEADPHONE;
1231 hs_det_sw = CS42L42_HSDET_SW_TYPE3;
1232 break;
1233 }
1234 }
1235
1236 /* Set Switches */
1237 regmap_write(map: cs42l42->regmap, CS42L42_HS_SWITCH_CTL, val: hs_det_sw);
1238
1239 /* Set HSDET mode to Manual—Disabled */
1240 regmap_update_bits(map: cs42l42->regmap,
1241 CS42L42_HSDET_CTL2,
1242 CS42L42_HSDET_CTRL_MASK |
1243 CS42L42_HSDET_SET_MASK |
1244 CS42L42_HSBIAS_REF_MASK |
1245 CS42L42_HSDET_AUTO_TIME_MASK,
1246 val: (0 << CS42L42_HSDET_CTRL_SHIFT) |
1247 (0 << CS42L42_HSDET_SET_SHIFT) |
1248 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1249 (0 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1250
1251 /* Configure HS DET comparator reference levels. */
1252 regmap_update_bits(map: cs42l42->regmap,
1253 CS42L42_HSDET_CTL1,
1254 CS42L42_HSDET_COMP1_LVL_MASK |
1255 CS42L42_HSDET_COMP2_LVL_MASK,
1256 val: (CS42L42_HSDET_COMP1_LVL_DEFAULT << CS42L42_HSDET_COMP1_LVL_SHIFT) |
1257 (CS42L42_HSDET_COMP2_LVL_DEFAULT << CS42L42_HSDET_COMP2_LVL_SHIFT));
1258}
1259
1260static void cs42l42_process_hs_type_detect(struct cs42l42_private *cs42l42)
1261{
1262 unsigned int hs_det_status;
1263 unsigned int int_status;
1264
1265 /* Read and save the hs detection result */
1266 regmap_read(map: cs42l42->regmap, CS42L42_HS_DET_STATUS, val: &hs_det_status);
1267
1268 /* Mask the auto detect interrupt */
1269 regmap_update_bits(map: cs42l42->regmap,
1270 CS42L42_CODEC_INT_MASK,
1271 CS42L42_PDN_DONE_MASK |
1272 CS42L42_HSDET_AUTO_DONE_MASK,
1273 val: (1 << CS42L42_PDN_DONE_SHIFT) |
1274 (1 << CS42L42_HSDET_AUTO_DONE_SHIFT));
1275
1276
1277 cs42l42->hs_type = (hs_det_status & CS42L42_HSDET_TYPE_MASK) >>
1278 CS42L42_HSDET_TYPE_SHIFT;
1279
1280 /* Set hs detect to automatic, disabled mode */
1281 regmap_update_bits(map: cs42l42->regmap,
1282 CS42L42_HSDET_CTL2,
1283 CS42L42_HSDET_CTRL_MASK |
1284 CS42L42_HSDET_SET_MASK |
1285 CS42L42_HSBIAS_REF_MASK |
1286 CS42L42_HSDET_AUTO_TIME_MASK,
1287 val: (2 << CS42L42_HSDET_CTRL_SHIFT) |
1288 (2 << CS42L42_HSDET_SET_SHIFT) |
1289 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1290 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1291
1292 /* Run Manual detection if auto detect has not found a headset.
1293 * We Re-Run with Manual Detection if the original detection was invalid or headphones,
1294 * to ensure that a headset mic is detected in all cases.
1295 */
1296 if (cs42l42->hs_type == CS42L42_PLUG_INVALID ||
1297 cs42l42->hs_type == CS42L42_PLUG_HEADPHONE) {
1298 dev_dbg(cs42l42->dev, "Running Manual Detection Fallback\n");
1299 cs42l42_manual_hs_type_detect(cs42l42);
1300 }
1301
1302 /* Set up button detection */
1303 if ((cs42l42->hs_type == CS42L42_PLUG_CTIA) ||
1304 (cs42l42->hs_type == CS42L42_PLUG_OMTP)) {
1305 /* Set auto HS bias settings to default */
1306 regmap_update_bits(map: cs42l42->regmap,
1307 CS42L42_HSBIAS_SC_AUTOCTL,
1308 CS42L42_HSBIAS_SENSE_EN_MASK |
1309 CS42L42_AUTO_HSBIAS_HIZ_MASK |
1310 CS42L42_TIP_SENSE_EN_MASK |
1311 CS42L42_HSBIAS_SENSE_TRIP_MASK,
1312 val: (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) |
1313 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) |
1314 (0 << CS42L42_TIP_SENSE_EN_SHIFT) |
1315 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT));
1316
1317 /* Set up hs detect level sensitivity */
1318 regmap_update_bits(map: cs42l42->regmap,
1319 CS42L42_MIC_DET_CTL1,
1320 CS42L42_LATCH_TO_VP_MASK |
1321 CS42L42_EVENT_STAT_SEL_MASK |
1322 CS42L42_HS_DET_LEVEL_MASK,
1323 val: (1 << CS42L42_LATCH_TO_VP_SHIFT) |
1324 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) |
1325 (cs42l42->bias_thresholds[0] <<
1326 CS42L42_HS_DET_LEVEL_SHIFT));
1327
1328 /* Set auto HS bias settings to default */
1329 regmap_update_bits(map: cs42l42->regmap,
1330 CS42L42_HSBIAS_SC_AUTOCTL,
1331 CS42L42_HSBIAS_SENSE_EN_MASK |
1332 CS42L42_AUTO_HSBIAS_HIZ_MASK |
1333 CS42L42_TIP_SENSE_EN_MASK |
1334 CS42L42_HSBIAS_SENSE_TRIP_MASK,
1335 val: (cs42l42->hs_bias_sense_en << CS42L42_HSBIAS_SENSE_EN_SHIFT) |
1336 (1 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) |
1337 (0 << CS42L42_TIP_SENSE_EN_SHIFT) |
1338 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT));
1339
1340 /* Turn on level detect circuitry */
1341 regmap_update_bits(map: cs42l42->regmap,
1342 CS42L42_MISC_DET_CTL,
1343 CS42L42_HSBIAS_CTL_MASK |
1344 CS42L42_PDN_MIC_LVL_DET_MASK,
1345 val: (3 << CS42L42_HSBIAS_CTL_SHIFT) |
1346 (0 << CS42L42_PDN_MIC_LVL_DET_SHIFT));
1347
1348 msleep(msecs: cs42l42->btn_det_init_dbnce);
1349
1350 /* Clear any button interrupts before unmasking them */
1351 regmap_read(map: cs42l42->regmap, CS42L42_DET_INT_STATUS2,
1352 val: &int_status);
1353
1354 /* Unmask button detect interrupts */
1355 regmap_update_bits(map: cs42l42->regmap,
1356 CS42L42_DET_INT2_MASK,
1357 CS42L42_M_DETECT_TF_MASK |
1358 CS42L42_M_DETECT_FT_MASK |
1359 CS42L42_M_HSBIAS_HIZ_MASK |
1360 CS42L42_M_SHORT_RLS_MASK |
1361 CS42L42_M_SHORT_DET_MASK,
1362 val: (0 << CS42L42_M_DETECT_TF_SHIFT) |
1363 (0 << CS42L42_M_DETECT_FT_SHIFT) |
1364 (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) |
1365 (1 << CS42L42_M_SHORT_RLS_SHIFT) |
1366 (1 << CS42L42_M_SHORT_DET_SHIFT));
1367 } else {
1368 /* Make sure button detect and HS bias circuits are off */
1369 regmap_update_bits(map: cs42l42->regmap,
1370 CS42L42_MISC_DET_CTL,
1371 CS42L42_HSBIAS_CTL_MASK |
1372 CS42L42_PDN_MIC_LVL_DET_MASK,
1373 val: (1 << CS42L42_HSBIAS_CTL_SHIFT) |
1374 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT));
1375 }
1376
1377 regmap_update_bits(map: cs42l42->regmap,
1378 CS42L42_DAC_CTL2,
1379 CS42L42_HPOUT_PULLDOWN_MASK |
1380 CS42L42_HPOUT_LOAD_MASK |
1381 CS42L42_HPOUT_CLAMP_MASK |
1382 CS42L42_DAC_HPF_EN_MASK |
1383 CS42L42_DAC_MON_EN_MASK,
1384 val: (0 << CS42L42_HPOUT_PULLDOWN_SHIFT) |
1385 (0 << CS42L42_HPOUT_LOAD_SHIFT) |
1386 (0 << CS42L42_HPOUT_CLAMP_SHIFT) |
1387 (1 << CS42L42_DAC_HPF_EN_SHIFT) |
1388 (0 << CS42L42_DAC_MON_EN_SHIFT));
1389
1390 /* Unmask tip sense interrupts */
1391 regmap_update_bits(map: cs42l42->regmap,
1392 CS42L42_TSRS_PLUG_INT_MASK,
1393 CS42L42_TS_PLUG_MASK |
1394 CS42L42_TS_UNPLUG_MASK,
1395 val: (0 << CS42L42_TS_PLUG_SHIFT) |
1396 (0 << CS42L42_TS_UNPLUG_SHIFT));
1397}
1398
1399static void cs42l42_init_hs_type_detect(struct cs42l42_private *cs42l42)
1400{
1401 /* Mask tip sense interrupts */
1402 regmap_update_bits(map: cs42l42->regmap,
1403 CS42L42_TSRS_PLUG_INT_MASK,
1404 CS42L42_TS_PLUG_MASK |
1405 CS42L42_TS_UNPLUG_MASK,
1406 val: (1 << CS42L42_TS_PLUG_SHIFT) |
1407 (1 << CS42L42_TS_UNPLUG_SHIFT));
1408
1409 /* Make sure button detect and HS bias circuits are off */
1410 regmap_update_bits(map: cs42l42->regmap,
1411 CS42L42_MISC_DET_CTL,
1412 CS42L42_HSBIAS_CTL_MASK |
1413 CS42L42_PDN_MIC_LVL_DET_MASK,
1414 val: (1 << CS42L42_HSBIAS_CTL_SHIFT) |
1415 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT));
1416
1417 /* Set auto HS bias settings to default */
1418 regmap_update_bits(map: cs42l42->regmap,
1419 CS42L42_HSBIAS_SC_AUTOCTL,
1420 CS42L42_HSBIAS_SENSE_EN_MASK |
1421 CS42L42_AUTO_HSBIAS_HIZ_MASK |
1422 CS42L42_TIP_SENSE_EN_MASK |
1423 CS42L42_HSBIAS_SENSE_TRIP_MASK,
1424 val: (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) |
1425 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) |
1426 (0 << CS42L42_TIP_SENSE_EN_SHIFT) |
1427 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT));
1428
1429 /* Set hs detect to manual, disabled mode */
1430 regmap_update_bits(map: cs42l42->regmap,
1431 CS42L42_HSDET_CTL2,
1432 CS42L42_HSDET_CTRL_MASK |
1433 CS42L42_HSDET_SET_MASK |
1434 CS42L42_HSBIAS_REF_MASK |
1435 CS42L42_HSDET_AUTO_TIME_MASK,
1436 val: (0 << CS42L42_HSDET_CTRL_SHIFT) |
1437 (2 << CS42L42_HSDET_SET_SHIFT) |
1438 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1439 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1440
1441 regmap_update_bits(map: cs42l42->regmap,
1442 CS42L42_DAC_CTL2,
1443 CS42L42_HPOUT_PULLDOWN_MASK |
1444 CS42L42_HPOUT_LOAD_MASK |
1445 CS42L42_HPOUT_CLAMP_MASK |
1446 CS42L42_DAC_HPF_EN_MASK |
1447 CS42L42_DAC_MON_EN_MASK,
1448 val: (8 << CS42L42_HPOUT_PULLDOWN_SHIFT) |
1449 (0 << CS42L42_HPOUT_LOAD_SHIFT) |
1450 (1 << CS42L42_HPOUT_CLAMP_SHIFT) |
1451 (1 << CS42L42_DAC_HPF_EN_SHIFT) |
1452 (1 << CS42L42_DAC_MON_EN_SHIFT));
1453
1454 /* Power up HS bias to 2.7V */
1455 regmap_update_bits(map: cs42l42->regmap,
1456 CS42L42_MISC_DET_CTL,
1457 CS42L42_HSBIAS_CTL_MASK |
1458 CS42L42_PDN_MIC_LVL_DET_MASK,
1459 val: (3 << CS42L42_HSBIAS_CTL_SHIFT) |
1460 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT));
1461
1462 /* Wait for HS bias to ramp up */
1463 msleep(msecs: cs42l42->hs_bias_ramp_time);
1464
1465 /* Unmask auto detect interrupt */
1466 regmap_update_bits(map: cs42l42->regmap,
1467 CS42L42_CODEC_INT_MASK,
1468 CS42L42_PDN_DONE_MASK |
1469 CS42L42_HSDET_AUTO_DONE_MASK,
1470 val: (1 << CS42L42_PDN_DONE_SHIFT) |
1471 (0 << CS42L42_HSDET_AUTO_DONE_SHIFT));
1472
1473 /* Set hs detect to automatic, enabled mode */
1474 regmap_update_bits(map: cs42l42->regmap,
1475 CS42L42_HSDET_CTL2,
1476 CS42L42_HSDET_CTRL_MASK |
1477 CS42L42_HSDET_SET_MASK |
1478 CS42L42_HSBIAS_REF_MASK |
1479 CS42L42_HSDET_AUTO_TIME_MASK,
1480 val: (3 << CS42L42_HSDET_CTRL_SHIFT) |
1481 (2 << CS42L42_HSDET_SET_SHIFT) |
1482 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1483 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1484}
1485
1486static void cs42l42_cancel_hs_type_detect(struct cs42l42_private *cs42l42)
1487{
1488 /* Mask button detect interrupts */
1489 regmap_update_bits(map: cs42l42->regmap,
1490 CS42L42_DET_INT2_MASK,
1491 CS42L42_M_DETECT_TF_MASK |
1492 CS42L42_M_DETECT_FT_MASK |
1493 CS42L42_M_HSBIAS_HIZ_MASK |
1494 CS42L42_M_SHORT_RLS_MASK |
1495 CS42L42_M_SHORT_DET_MASK,
1496 val: (1 << CS42L42_M_DETECT_TF_SHIFT) |
1497 (1 << CS42L42_M_DETECT_FT_SHIFT) |
1498 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) |
1499 (1 << CS42L42_M_SHORT_RLS_SHIFT) |
1500 (1 << CS42L42_M_SHORT_DET_SHIFT));
1501
1502 /* Ground HS bias */
1503 regmap_update_bits(map: cs42l42->regmap,
1504 CS42L42_MISC_DET_CTL,
1505 CS42L42_HSBIAS_CTL_MASK |
1506 CS42L42_PDN_MIC_LVL_DET_MASK,
1507 val: (1 << CS42L42_HSBIAS_CTL_SHIFT) |
1508 (1 << CS42L42_PDN_MIC_LVL_DET_SHIFT));
1509
1510 /* Set auto HS bias settings to default */
1511 regmap_update_bits(map: cs42l42->regmap,
1512 CS42L42_HSBIAS_SC_AUTOCTL,
1513 CS42L42_HSBIAS_SENSE_EN_MASK |
1514 CS42L42_AUTO_HSBIAS_HIZ_MASK |
1515 CS42L42_TIP_SENSE_EN_MASK |
1516 CS42L42_HSBIAS_SENSE_TRIP_MASK,
1517 val: (0 << CS42L42_HSBIAS_SENSE_EN_SHIFT) |
1518 (0 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) |
1519 (0 << CS42L42_TIP_SENSE_EN_SHIFT) |
1520 (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT));
1521
1522 /* Set hs detect to manual, disabled mode */
1523 regmap_update_bits(map: cs42l42->regmap,
1524 CS42L42_HSDET_CTL2,
1525 CS42L42_HSDET_CTRL_MASK |
1526 CS42L42_HSDET_SET_MASK |
1527 CS42L42_HSBIAS_REF_MASK |
1528 CS42L42_HSDET_AUTO_TIME_MASK,
1529 val: (0 << CS42L42_HSDET_CTRL_SHIFT) |
1530 (2 << CS42L42_HSDET_SET_SHIFT) |
1531 (0 << CS42L42_HSBIAS_REF_SHIFT) |
1532 (3 << CS42L42_HSDET_AUTO_TIME_SHIFT));
1533}
1534
1535static int cs42l42_handle_button_press(struct cs42l42_private *cs42l42)
1536{
1537 int bias_level;
1538 unsigned int detect_status;
1539
1540 /* Mask button detect interrupts */
1541 regmap_update_bits(map: cs42l42->regmap,
1542 CS42L42_DET_INT2_MASK,
1543 CS42L42_M_DETECT_TF_MASK |
1544 CS42L42_M_DETECT_FT_MASK |
1545 CS42L42_M_HSBIAS_HIZ_MASK |
1546 CS42L42_M_SHORT_RLS_MASK |
1547 CS42L42_M_SHORT_DET_MASK,
1548 val: (1 << CS42L42_M_DETECT_TF_SHIFT) |
1549 (1 << CS42L42_M_DETECT_FT_SHIFT) |
1550 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) |
1551 (1 << CS42L42_M_SHORT_RLS_SHIFT) |
1552 (1 << CS42L42_M_SHORT_DET_SHIFT));
1553
1554 usleep_range(min: cs42l42->btn_det_event_dbnce * 1000,
1555 max: cs42l42->btn_det_event_dbnce * 2000);
1556
1557 /* Test all 4 level detect biases */
1558 bias_level = 1;
1559 do {
1560 /* Adjust button detect level sensitivity */
1561 regmap_update_bits(map: cs42l42->regmap,
1562 CS42L42_MIC_DET_CTL1,
1563 CS42L42_LATCH_TO_VP_MASK |
1564 CS42L42_EVENT_STAT_SEL_MASK |
1565 CS42L42_HS_DET_LEVEL_MASK,
1566 val: (1 << CS42L42_LATCH_TO_VP_SHIFT) |
1567 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) |
1568 (cs42l42->bias_thresholds[bias_level] <<
1569 CS42L42_HS_DET_LEVEL_SHIFT));
1570
1571 regmap_read(map: cs42l42->regmap, CS42L42_DET_STATUS2,
1572 val: &detect_status);
1573 } while ((detect_status & CS42L42_HS_TRUE_MASK) &&
1574 (++bias_level < CS42L42_NUM_BIASES));
1575
1576 switch (bias_level) {
1577 case 1: /* Function C button press */
1578 bias_level = SND_JACK_BTN_2;
1579 dev_dbg(cs42l42->dev, "Function C button press\n");
1580 break;
1581 case 2: /* Function B button press */
1582 bias_level = SND_JACK_BTN_1;
1583 dev_dbg(cs42l42->dev, "Function B button press\n");
1584 break;
1585 case 3: /* Function D button press */
1586 bias_level = SND_JACK_BTN_3;
1587 dev_dbg(cs42l42->dev, "Function D button press\n");
1588 break;
1589 case 4: /* Function A button press */
1590 bias_level = SND_JACK_BTN_0;
1591 dev_dbg(cs42l42->dev, "Function A button press\n");
1592 break;
1593 default:
1594 bias_level = 0;
1595 break;
1596 }
1597
1598 /* Set button detect level sensitivity back to default */
1599 regmap_update_bits(map: cs42l42->regmap,
1600 CS42L42_MIC_DET_CTL1,
1601 CS42L42_LATCH_TO_VP_MASK |
1602 CS42L42_EVENT_STAT_SEL_MASK |
1603 CS42L42_HS_DET_LEVEL_MASK,
1604 val: (1 << CS42L42_LATCH_TO_VP_SHIFT) |
1605 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) |
1606 (cs42l42->bias_thresholds[0] << CS42L42_HS_DET_LEVEL_SHIFT));
1607
1608 /* Clear any button interrupts before unmasking them */
1609 regmap_read(map: cs42l42->regmap, CS42L42_DET_INT_STATUS2,
1610 val: &detect_status);
1611
1612 /* Unmask button detect interrupts */
1613 regmap_update_bits(map: cs42l42->regmap,
1614 CS42L42_DET_INT2_MASK,
1615 CS42L42_M_DETECT_TF_MASK |
1616 CS42L42_M_DETECT_FT_MASK |
1617 CS42L42_M_HSBIAS_HIZ_MASK |
1618 CS42L42_M_SHORT_RLS_MASK |
1619 CS42L42_M_SHORT_DET_MASK,
1620 val: (0 << CS42L42_M_DETECT_TF_SHIFT) |
1621 (0 << CS42L42_M_DETECT_FT_SHIFT) |
1622 (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) |
1623 (1 << CS42L42_M_SHORT_RLS_SHIFT) |
1624 (1 << CS42L42_M_SHORT_DET_SHIFT));
1625
1626 return bias_level;
1627}
1628
1629struct cs42l42_irq_params {
1630 u16 status_addr;
1631 u16 mask_addr;
1632 u8 mask;
1633};
1634
1635static const struct cs42l42_irq_params irq_params_table[] = {
1636 {CS42L42_ADC_OVFL_STATUS, CS42L42_ADC_OVFL_INT_MASK,
1637 CS42L42_ADC_OVFL_VAL_MASK},
1638 {CS42L42_MIXER_STATUS, CS42L42_MIXER_INT_MASK,
1639 CS42L42_MIXER_VAL_MASK},
1640 {CS42L42_SRC_STATUS, CS42L42_SRC_INT_MASK,
1641 CS42L42_SRC_VAL_MASK},
1642 {CS42L42_ASP_RX_STATUS, CS42L42_ASP_RX_INT_MASK,
1643 CS42L42_ASP_RX_VAL_MASK},
1644 {CS42L42_ASP_TX_STATUS, CS42L42_ASP_TX_INT_MASK,
1645 CS42L42_ASP_TX_VAL_MASK},
1646 {CS42L42_CODEC_STATUS, CS42L42_CODEC_INT_MASK,
1647 CS42L42_CODEC_VAL_MASK},
1648 {CS42L42_DET_INT_STATUS1, CS42L42_DET_INT1_MASK,
1649 CS42L42_DET_INT_VAL1_MASK},
1650 {CS42L42_DET_INT_STATUS2, CS42L42_DET_INT2_MASK,
1651 CS42L42_DET_INT_VAL2_MASK},
1652 {CS42L42_SRCPL_INT_STATUS, CS42L42_SRCPL_INT_MASK,
1653 CS42L42_SRCPL_VAL_MASK},
1654 {CS42L42_VPMON_STATUS, CS42L42_VPMON_INT_MASK,
1655 CS42L42_VPMON_VAL_MASK},
1656 {CS42L42_PLL_LOCK_STATUS, CS42L42_PLL_LOCK_INT_MASK,
1657 CS42L42_PLL_LOCK_VAL_MASK},
1658 {CS42L42_TSRS_PLUG_STATUS, CS42L42_TSRS_PLUG_INT_MASK,
1659 CS42L42_TSRS_PLUG_VAL_MASK}
1660};
1661
1662irqreturn_t cs42l42_irq_thread(int irq, void *data)
1663{
1664 struct cs42l42_private *cs42l42 = (struct cs42l42_private *)data;
1665 unsigned int stickies[12];
1666 unsigned int masks[12];
1667 unsigned int current_plug_status;
1668 unsigned int current_button_status;
1669 unsigned int i;
1670
1671 pm_runtime_get_sync(dev: cs42l42->dev);
1672 mutex_lock(&cs42l42->irq_lock);
1673 if (cs42l42->suspended || !cs42l42->init_done) {
1674 mutex_unlock(lock: &cs42l42->irq_lock);
1675 pm_runtime_put_autosuspend(dev: cs42l42->dev);
1676 return IRQ_NONE;
1677 }
1678
1679 /* Read sticky registers to clear interurpt */
1680 for (i = 0; i < ARRAY_SIZE(stickies); i++) {
1681 regmap_read(map: cs42l42->regmap, reg: irq_params_table[i].status_addr,
1682 val: &(stickies[i]));
1683 regmap_read(map: cs42l42->regmap, reg: irq_params_table[i].mask_addr,
1684 val: &(masks[i]));
1685 stickies[i] = stickies[i] & (~masks[i]) &
1686 irq_params_table[i].mask;
1687 }
1688
1689 /* Read tip sense status before handling type detect */
1690 current_plug_status = (stickies[11] &
1691 (CS42L42_TS_PLUG_MASK | CS42L42_TS_UNPLUG_MASK)) >>
1692 CS42L42_TS_PLUG_SHIFT;
1693
1694 /* Read button sense status */
1695 current_button_status = stickies[7] &
1696 (CS42L42_M_DETECT_TF_MASK |
1697 CS42L42_M_DETECT_FT_MASK |
1698 CS42L42_M_HSBIAS_HIZ_MASK);
1699
1700 /*
1701 * Check auto-detect status. Don't assume a previous unplug event has
1702 * cleared the flags. If the jack is unplugged and plugged during
1703 * system suspend there won't have been an unplug event.
1704 */
1705 if ((~masks[5]) & irq_params_table[5].mask) {
1706 if (stickies[5] & CS42L42_HSDET_AUTO_DONE_MASK) {
1707 cs42l42_process_hs_type_detect(cs42l42);
1708 switch (cs42l42->hs_type) {
1709 case CS42L42_PLUG_CTIA:
1710 case CS42L42_PLUG_OMTP:
1711 snd_soc_jack_report(jack: cs42l42->jack, status: SND_JACK_HEADSET,
1712 mask: SND_JACK_HEADSET |
1713 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
1714 SND_JACK_BTN_2 | SND_JACK_BTN_3);
1715 break;
1716 case CS42L42_PLUG_HEADPHONE:
1717 snd_soc_jack_report(jack: cs42l42->jack, status: SND_JACK_HEADPHONE,
1718 mask: SND_JACK_HEADSET |
1719 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
1720 SND_JACK_BTN_2 | SND_JACK_BTN_3);
1721 break;
1722 default:
1723 break;
1724 }
1725 dev_dbg(cs42l42->dev, "Auto detect done (%d)\n", cs42l42->hs_type);
1726 }
1727 }
1728
1729 /* Check tip sense status */
1730 if ((~masks[11]) & irq_params_table[11].mask) {
1731 switch (current_plug_status) {
1732 case CS42L42_TS_PLUG:
1733 if (cs42l42->plug_state != CS42L42_TS_PLUG) {
1734 cs42l42->plug_state = CS42L42_TS_PLUG;
1735 cs42l42_init_hs_type_detect(cs42l42);
1736 }
1737 break;
1738
1739 case CS42L42_TS_UNPLUG:
1740 if (cs42l42->plug_state != CS42L42_TS_UNPLUG) {
1741 cs42l42->plug_state = CS42L42_TS_UNPLUG;
1742 cs42l42_cancel_hs_type_detect(cs42l42);
1743
1744 snd_soc_jack_report(jack: cs42l42->jack, status: 0,
1745 mask: SND_JACK_HEADSET |
1746 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
1747 SND_JACK_BTN_2 | SND_JACK_BTN_3);
1748
1749 dev_dbg(cs42l42->dev, "Unplug event\n");
1750 }
1751 break;
1752
1753 default:
1754 cs42l42->plug_state = CS42L42_TS_TRANS;
1755 }
1756 }
1757
1758 /* Check button detect status */
1759 if (cs42l42->plug_state == CS42L42_TS_PLUG && ((~masks[7]) & irq_params_table[7].mask)) {
1760 if (!(current_button_status &
1761 CS42L42_M_HSBIAS_HIZ_MASK)) {
1762
1763 if (current_button_status & CS42L42_M_DETECT_TF_MASK) {
1764 dev_dbg(cs42l42->dev, "Button released\n");
1765 snd_soc_jack_report(jack: cs42l42->jack, status: 0,
1766 mask: SND_JACK_BTN_0 | SND_JACK_BTN_1 |
1767 SND_JACK_BTN_2 | SND_JACK_BTN_3);
1768 } else if (current_button_status & CS42L42_M_DETECT_FT_MASK) {
1769 snd_soc_jack_report(jack: cs42l42->jack,
1770 status: cs42l42_handle_button_press(cs42l42),
1771 mask: SND_JACK_BTN_0 | SND_JACK_BTN_1 |
1772 SND_JACK_BTN_2 | SND_JACK_BTN_3);
1773 }
1774 }
1775 }
1776
1777 mutex_unlock(lock: &cs42l42->irq_lock);
1778 pm_runtime_put_autosuspend(dev: cs42l42->dev);
1779
1780 return IRQ_HANDLED;
1781}
1782EXPORT_SYMBOL_NS_GPL(cs42l42_irq_thread, "SND_SOC_CS42L42_CORE");
1783
1784static void cs42l42_set_interrupt_masks(struct cs42l42_private *cs42l42)
1785{
1786 regmap_update_bits(map: cs42l42->regmap, CS42L42_ADC_OVFL_INT_MASK,
1787 CS42L42_ADC_OVFL_MASK,
1788 val: (1 << CS42L42_ADC_OVFL_SHIFT));
1789
1790 regmap_update_bits(map: cs42l42->regmap, CS42L42_MIXER_INT_MASK,
1791 CS42L42_MIX_CHB_OVFL_MASK |
1792 CS42L42_MIX_CHA_OVFL_MASK |
1793 CS42L42_EQ_OVFL_MASK |
1794 CS42L42_EQ_BIQUAD_OVFL_MASK,
1795 val: (1 << CS42L42_MIX_CHB_OVFL_SHIFT) |
1796 (1 << CS42L42_MIX_CHA_OVFL_SHIFT) |
1797 (1 << CS42L42_EQ_OVFL_SHIFT) |
1798 (1 << CS42L42_EQ_BIQUAD_OVFL_SHIFT));
1799
1800 regmap_update_bits(map: cs42l42->regmap, CS42L42_SRC_INT_MASK,
1801 CS42L42_SRC_ILK_MASK |
1802 CS42L42_SRC_OLK_MASK |
1803 CS42L42_SRC_IUNLK_MASK |
1804 CS42L42_SRC_OUNLK_MASK,
1805 val: (1 << CS42L42_SRC_ILK_SHIFT) |
1806 (1 << CS42L42_SRC_OLK_SHIFT) |
1807 (1 << CS42L42_SRC_IUNLK_SHIFT) |
1808 (1 << CS42L42_SRC_OUNLK_SHIFT));
1809
1810 regmap_update_bits(map: cs42l42->regmap, CS42L42_ASP_RX_INT_MASK,
1811 CS42L42_ASPRX_NOLRCK_MASK |
1812 CS42L42_ASPRX_EARLY_MASK |
1813 CS42L42_ASPRX_LATE_MASK |
1814 CS42L42_ASPRX_ERROR_MASK |
1815 CS42L42_ASPRX_OVLD_MASK,
1816 val: (1 << CS42L42_ASPRX_NOLRCK_SHIFT) |
1817 (1 << CS42L42_ASPRX_EARLY_SHIFT) |
1818 (1 << CS42L42_ASPRX_LATE_SHIFT) |
1819 (1 << CS42L42_ASPRX_ERROR_SHIFT) |
1820 (1 << CS42L42_ASPRX_OVLD_SHIFT));
1821
1822 regmap_update_bits(map: cs42l42->regmap, CS42L42_ASP_TX_INT_MASK,
1823 CS42L42_ASPTX_NOLRCK_MASK |
1824 CS42L42_ASPTX_EARLY_MASK |
1825 CS42L42_ASPTX_LATE_MASK |
1826 CS42L42_ASPTX_SMERROR_MASK,
1827 val: (1 << CS42L42_ASPTX_NOLRCK_SHIFT) |
1828 (1 << CS42L42_ASPTX_EARLY_SHIFT) |
1829 (1 << CS42L42_ASPTX_LATE_SHIFT) |
1830 (1 << CS42L42_ASPTX_SMERROR_SHIFT));
1831
1832 regmap_update_bits(map: cs42l42->regmap, CS42L42_CODEC_INT_MASK,
1833 CS42L42_PDN_DONE_MASK |
1834 CS42L42_HSDET_AUTO_DONE_MASK,
1835 val: (1 << CS42L42_PDN_DONE_SHIFT) |
1836 (1 << CS42L42_HSDET_AUTO_DONE_SHIFT));
1837
1838 regmap_update_bits(map: cs42l42->regmap, CS42L42_SRCPL_INT_MASK,
1839 CS42L42_SRCPL_ADC_LK_MASK |
1840 CS42L42_SRCPL_DAC_LK_MASK |
1841 CS42L42_SRCPL_ADC_UNLK_MASK |
1842 CS42L42_SRCPL_DAC_UNLK_MASK,
1843 val: (1 << CS42L42_SRCPL_ADC_LK_SHIFT) |
1844 (1 << CS42L42_SRCPL_DAC_LK_SHIFT) |
1845 (1 << CS42L42_SRCPL_ADC_UNLK_SHIFT) |
1846 (1 << CS42L42_SRCPL_DAC_UNLK_SHIFT));
1847
1848 regmap_update_bits(map: cs42l42->regmap, CS42L42_DET_INT1_MASK,
1849 CS42L42_TIP_SENSE_UNPLUG_MASK |
1850 CS42L42_TIP_SENSE_PLUG_MASK |
1851 CS42L42_HSBIAS_SENSE_MASK,
1852 val: (1 << CS42L42_TIP_SENSE_UNPLUG_SHIFT) |
1853 (1 << CS42L42_TIP_SENSE_PLUG_SHIFT) |
1854 (1 << CS42L42_HSBIAS_SENSE_SHIFT));
1855
1856 regmap_update_bits(map: cs42l42->regmap, CS42L42_DET_INT2_MASK,
1857 CS42L42_M_DETECT_TF_MASK |
1858 CS42L42_M_DETECT_FT_MASK |
1859 CS42L42_M_HSBIAS_HIZ_MASK |
1860 CS42L42_M_SHORT_RLS_MASK |
1861 CS42L42_M_SHORT_DET_MASK,
1862 val: (1 << CS42L42_M_DETECT_TF_SHIFT) |
1863 (1 << CS42L42_M_DETECT_FT_SHIFT) |
1864 (1 << CS42L42_M_HSBIAS_HIZ_SHIFT) |
1865 (1 << CS42L42_M_SHORT_RLS_SHIFT) |
1866 (1 << CS42L42_M_SHORT_DET_SHIFT));
1867
1868 regmap_update_bits(map: cs42l42->regmap, CS42L42_VPMON_INT_MASK,
1869 CS42L42_VPMON_MASK,
1870 val: (1 << CS42L42_VPMON_SHIFT));
1871
1872 regmap_update_bits(map: cs42l42->regmap, CS42L42_PLL_LOCK_INT_MASK,
1873 CS42L42_PLL_LOCK_MASK,
1874 val: (1 << CS42L42_PLL_LOCK_SHIFT));
1875
1876 regmap_update_bits(map: cs42l42->regmap, CS42L42_TSRS_PLUG_INT_MASK,
1877 CS42L42_RS_PLUG_MASK |
1878 CS42L42_RS_UNPLUG_MASK |
1879 CS42L42_TS_PLUG_MASK |
1880 CS42L42_TS_UNPLUG_MASK,
1881 val: (1 << CS42L42_RS_PLUG_SHIFT) |
1882 (1 << CS42L42_RS_UNPLUG_SHIFT) |
1883 (0 << CS42L42_TS_PLUG_SHIFT) |
1884 (0 << CS42L42_TS_UNPLUG_SHIFT));
1885}
1886
1887static void cs42l42_setup_hs_type_detect(struct cs42l42_private *cs42l42)
1888{
1889 unsigned int reg;
1890
1891 cs42l42->hs_type = CS42L42_PLUG_INVALID;
1892
1893 /*
1894 * DETECT_MODE must always be 0 with ADC and HP both off otherwise the
1895 * FILT+ supply will not charge properly.
1896 */
1897 regmap_update_bits(map: cs42l42->regmap, CS42L42_MISC_DET_CTL,
1898 CS42L42_DETECT_MODE_MASK, val: 0);
1899
1900 /* Latch analog controls to VP power domain */
1901 regmap_update_bits(map: cs42l42->regmap, CS42L42_MIC_DET_CTL1,
1902 CS42L42_LATCH_TO_VP_MASK |
1903 CS42L42_EVENT_STAT_SEL_MASK |
1904 CS42L42_HS_DET_LEVEL_MASK,
1905 val: (1 << CS42L42_LATCH_TO_VP_SHIFT) |
1906 (0 << CS42L42_EVENT_STAT_SEL_SHIFT) |
1907 (cs42l42->bias_thresholds[0] <<
1908 CS42L42_HS_DET_LEVEL_SHIFT));
1909
1910 /* Remove ground noise-suppression clamps */
1911 regmap_update_bits(map: cs42l42->regmap,
1912 CS42L42_HS_CLAMP_DISABLE,
1913 CS42L42_HS_CLAMP_DISABLE_MASK,
1914 val: (1 << CS42L42_HS_CLAMP_DISABLE_SHIFT));
1915
1916 /* Enable the tip sense circuit */
1917 regmap_update_bits(map: cs42l42->regmap, CS42L42_TSENSE_CTL,
1918 CS42L42_TS_INV_MASK, CS42L42_TS_INV_MASK);
1919
1920 regmap_update_bits(map: cs42l42->regmap, CS42L42_TIPSENSE_CTL,
1921 CS42L42_TIP_SENSE_CTRL_MASK |
1922 CS42L42_TIP_SENSE_INV_MASK |
1923 CS42L42_TIP_SENSE_DEBOUNCE_MASK,
1924 val: (3 << CS42L42_TIP_SENSE_CTRL_SHIFT) |
1925 (!cs42l42->ts_inv << CS42L42_TIP_SENSE_INV_SHIFT) |
1926 (2 << CS42L42_TIP_SENSE_DEBOUNCE_SHIFT));
1927
1928 /* Save the initial status of the tip sense */
1929 regmap_read(map: cs42l42->regmap,
1930 CS42L42_TSRS_PLUG_STATUS,
1931 val: &reg);
1932 cs42l42->plug_state = (((char) reg) &
1933 (CS42L42_TS_PLUG_MASK | CS42L42_TS_UNPLUG_MASK)) >>
1934 CS42L42_TS_PLUG_SHIFT;
1935}
1936
1937static const unsigned int threshold_defaults[] = {
1938 CS42L42_HS_DET_LEVEL_15,
1939 CS42L42_HS_DET_LEVEL_8,
1940 CS42L42_HS_DET_LEVEL_4,
1941 CS42L42_HS_DET_LEVEL_1
1942};
1943
1944static int cs42l42_handle_device_data(struct device *dev,
1945 struct cs42l42_private *cs42l42)
1946{
1947 unsigned int val;
1948 u32 thresholds[CS42L42_NUM_BIASES];
1949 int ret;
1950 int i;
1951
1952 ret = device_property_read_u32(dev, propname: "cirrus,ts-inv", val: &val);
1953 if (!ret) {
1954 switch (val) {
1955 case CS42L42_TS_INV_EN:
1956 case CS42L42_TS_INV_DIS:
1957 cs42l42->ts_inv = val;
1958 break;
1959 default:
1960 dev_err(dev,
1961 "Wrong cirrus,ts-inv DT value %d\n",
1962 val);
1963 cs42l42->ts_inv = CS42L42_TS_INV_DIS;
1964 }
1965 } else {
1966 cs42l42->ts_inv = CS42L42_TS_INV_DIS;
1967 }
1968
1969 ret = device_property_read_u32(dev, propname: "cirrus,ts-dbnc-rise", val: &val);
1970 if (!ret) {
1971 switch (val) {
1972 case CS42L42_TS_DBNCE_0:
1973 case CS42L42_TS_DBNCE_125:
1974 case CS42L42_TS_DBNCE_250:
1975 case CS42L42_TS_DBNCE_500:
1976 case CS42L42_TS_DBNCE_750:
1977 case CS42L42_TS_DBNCE_1000:
1978 case CS42L42_TS_DBNCE_1250:
1979 case CS42L42_TS_DBNCE_1500:
1980 cs42l42->ts_dbnc_rise = val;
1981 break;
1982 default:
1983 dev_err(dev,
1984 "Wrong cirrus,ts-dbnc-rise DT value %d\n",
1985 val);
1986 cs42l42->ts_dbnc_rise = CS42L42_TS_DBNCE_1000;
1987 }
1988 } else {
1989 cs42l42->ts_dbnc_rise = CS42L42_TS_DBNCE_1000;
1990 }
1991
1992 regmap_update_bits(map: cs42l42->regmap, CS42L42_TSENSE_CTL,
1993 CS42L42_TS_RISE_DBNCE_TIME_MASK,
1994 val: (cs42l42->ts_dbnc_rise <<
1995 CS42L42_TS_RISE_DBNCE_TIME_SHIFT));
1996
1997 ret = device_property_read_u32(dev, propname: "cirrus,ts-dbnc-fall", val: &val);
1998 if (!ret) {
1999 switch (val) {
2000 case CS42L42_TS_DBNCE_0:
2001 case CS42L42_TS_DBNCE_125:
2002 case CS42L42_TS_DBNCE_250:
2003 case CS42L42_TS_DBNCE_500:
2004 case CS42L42_TS_DBNCE_750:
2005 case CS42L42_TS_DBNCE_1000:
2006 case CS42L42_TS_DBNCE_1250:
2007 case CS42L42_TS_DBNCE_1500:
2008 cs42l42->ts_dbnc_fall = val;
2009 break;
2010 default:
2011 dev_err(dev,
2012 "Wrong cirrus,ts-dbnc-fall DT value %d\n",
2013 val);
2014 cs42l42->ts_dbnc_fall = CS42L42_TS_DBNCE_0;
2015 }
2016 } else {
2017 cs42l42->ts_dbnc_fall = CS42L42_TS_DBNCE_0;
2018 }
2019
2020 regmap_update_bits(map: cs42l42->regmap, CS42L42_TSENSE_CTL,
2021 CS42L42_TS_FALL_DBNCE_TIME_MASK,
2022 val: (cs42l42->ts_dbnc_fall <<
2023 CS42L42_TS_FALL_DBNCE_TIME_SHIFT));
2024
2025 ret = device_property_read_u32(dev, propname: "cirrus,btn-det-init-dbnce", val: &val);
2026 if (!ret) {
2027 if (val <= CS42L42_BTN_DET_INIT_DBNCE_MAX)
2028 cs42l42->btn_det_init_dbnce = val;
2029 else {
2030 dev_err(dev,
2031 "Wrong cirrus,btn-det-init-dbnce DT value %d\n",
2032 val);
2033 cs42l42->btn_det_init_dbnce =
2034 CS42L42_BTN_DET_INIT_DBNCE_DEFAULT;
2035 }
2036 } else {
2037 cs42l42->btn_det_init_dbnce =
2038 CS42L42_BTN_DET_INIT_DBNCE_DEFAULT;
2039 }
2040
2041 ret = device_property_read_u32(dev, propname: "cirrus,btn-det-event-dbnce", val: &val);
2042 if (!ret) {
2043 if (val <= CS42L42_BTN_DET_EVENT_DBNCE_MAX)
2044 cs42l42->btn_det_event_dbnce = val;
2045 else {
2046 dev_err(dev,
2047 "Wrong cirrus,btn-det-event-dbnce DT value %d\n", val);
2048 cs42l42->btn_det_event_dbnce =
2049 CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT;
2050 }
2051 } else {
2052 cs42l42->btn_det_event_dbnce =
2053 CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT;
2054 }
2055
2056 ret = device_property_read_u32_array(dev, propname: "cirrus,bias-lvls",
2057 val: thresholds, ARRAY_SIZE(thresholds));
2058 if (!ret) {
2059 for (i = 0; i < CS42L42_NUM_BIASES; i++) {
2060 if (thresholds[i] <= CS42L42_HS_DET_LEVEL_MAX)
2061 cs42l42->bias_thresholds[i] = thresholds[i];
2062 else {
2063 dev_err(dev,
2064 "Wrong cirrus,bias-lvls[%d] DT value %d\n", i,
2065 thresholds[i]);
2066 cs42l42->bias_thresholds[i] = threshold_defaults[i];
2067 }
2068 }
2069 } else {
2070 for (i = 0; i < CS42L42_NUM_BIASES; i++)
2071 cs42l42->bias_thresholds[i] = threshold_defaults[i];
2072 }
2073
2074 ret = device_property_read_u32(dev, propname: "cirrus,hs-bias-ramp-rate", val: &val);
2075 if (!ret) {
2076 switch (val) {
2077 case CS42L42_HSBIAS_RAMP_FAST_RISE_SLOW_FALL:
2078 cs42l42->hs_bias_ramp_rate = val;
2079 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME0;
2080 break;
2081 case CS42L42_HSBIAS_RAMP_FAST:
2082 cs42l42->hs_bias_ramp_rate = val;
2083 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME1;
2084 break;
2085 case CS42L42_HSBIAS_RAMP_SLOW:
2086 cs42l42->hs_bias_ramp_rate = val;
2087 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2;
2088 break;
2089 case CS42L42_HSBIAS_RAMP_SLOWEST:
2090 cs42l42->hs_bias_ramp_rate = val;
2091 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME3;
2092 break;
2093 default:
2094 dev_err(dev,
2095 "Wrong cirrus,hs-bias-ramp-rate DT value %d\n",
2096 val);
2097 cs42l42->hs_bias_ramp_rate = CS42L42_HSBIAS_RAMP_SLOW;
2098 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2;
2099 }
2100 } else {
2101 cs42l42->hs_bias_ramp_rate = CS42L42_HSBIAS_RAMP_SLOW;
2102 cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME2;
2103 }
2104
2105 regmap_update_bits(map: cs42l42->regmap, CS42L42_HS_BIAS_CTL,
2106 CS42L42_HSBIAS_RAMP_MASK,
2107 val: (cs42l42->hs_bias_ramp_rate <<
2108 CS42L42_HSBIAS_RAMP_SHIFT));
2109
2110 if (device_property_read_bool(dev, propname: "cirrus,hs-bias-sense-disable"))
2111 cs42l42->hs_bias_sense_en = 0;
2112 else
2113 cs42l42->hs_bias_sense_en = 1;
2114
2115 return 0;
2116}
2117
2118/* Datasheet suspend sequence */
2119static const struct reg_sequence __maybe_unused cs42l42_shutdown_seq[] = {
2120 REG_SEQ0(CS42L42_MIC_DET_CTL1, 0x9F),
2121 REG_SEQ0(CS42L42_ADC_OVFL_INT_MASK, 0x01),
2122 REG_SEQ0(CS42L42_MIXER_INT_MASK, 0x0F),
2123 REG_SEQ0(CS42L42_SRC_INT_MASK, 0x0F),
2124 REG_SEQ0(CS42L42_ASP_RX_INT_MASK, 0x1F),
2125 REG_SEQ0(CS42L42_ASP_TX_INT_MASK, 0x0F),
2126 REG_SEQ0(CS42L42_CODEC_INT_MASK, 0x03),
2127 REG_SEQ0(CS42L42_SRCPL_INT_MASK, 0x7F),
2128 REG_SEQ0(CS42L42_VPMON_INT_MASK, 0x01),
2129 REG_SEQ0(CS42L42_PLL_LOCK_INT_MASK, 0x01),
2130 REG_SEQ0(CS42L42_TSRS_PLUG_INT_MASK, 0x0F),
2131 REG_SEQ0(CS42L42_WAKE_CTL, 0xE1),
2132 REG_SEQ0(CS42L42_DET_INT1_MASK, 0xE0),
2133 REG_SEQ0(CS42L42_DET_INT2_MASK, 0xFF),
2134 REG_SEQ0(CS42L42_MIXER_CHA_VOL, 0x3F),
2135 REG_SEQ0(CS42L42_MIXER_ADC_VOL, 0x3F),
2136 REG_SEQ0(CS42L42_MIXER_CHB_VOL, 0x3F),
2137 REG_SEQ0(CS42L42_HP_CTL, 0x0F),
2138 REG_SEQ0(CS42L42_ASP_RX_DAI0_EN, 0x00),
2139 REG_SEQ0(CS42L42_ASP_CLK_CFG, 0x00),
2140 REG_SEQ0(CS42L42_HSDET_CTL2, 0x00),
2141 REG_SEQ0(CS42L42_PWR_CTL1, 0xFE),
2142 REG_SEQ0(CS42L42_PWR_CTL2, 0x8C),
2143 REG_SEQ0(CS42L42_DAC_CTL2, 0x02),
2144 REG_SEQ0(CS42L42_HS_CLAMP_DISABLE, 0x00),
2145 REG_SEQ0(CS42L42_MISC_DET_CTL, 0x03),
2146 REG_SEQ0(CS42L42_TIPSENSE_CTL, 0x02),
2147 REG_SEQ0(CS42L42_HSBIAS_SC_AUTOCTL, 0x03),
2148 REG_SEQ0(CS42L42_PWR_CTL1, 0xFF)
2149};
2150
2151int cs42l42_suspend(struct device *dev)
2152{
2153 struct cs42l42_private *cs42l42 = dev_get_drvdata(dev);
2154 unsigned int reg;
2155 u8 save_regs[ARRAY_SIZE(cs42l42_shutdown_seq)];
2156 int i, ret;
2157
2158 if (!cs42l42->init_done)
2159 return 0;
2160
2161 /*
2162 * Wait for threaded irq handler to be idle and stop it processing
2163 * future interrupts. This ensures a safe disable if the interrupt
2164 * is shared.
2165 */
2166 mutex_lock(&cs42l42->irq_lock);
2167 cs42l42->suspended = true;
2168
2169 /* Save register values that will be overwritten by shutdown sequence */
2170 for (i = 0; i < ARRAY_SIZE(cs42l42_shutdown_seq); ++i) {
2171 regmap_read(map: cs42l42->regmap, reg: cs42l42_shutdown_seq[i].reg, val: &reg);
2172 save_regs[i] = (u8)reg;
2173 }
2174
2175 /* Shutdown codec */
2176 regmap_multi_reg_write(map: cs42l42->regmap,
2177 regs: cs42l42_shutdown_seq,
2178 ARRAY_SIZE(cs42l42_shutdown_seq));
2179
2180 /* All interrupt sources are now disabled */
2181 mutex_unlock(lock: &cs42l42->irq_lock);
2182
2183 /* Wait for power-down complete */
2184 msleep(CS42L42_PDN_DONE_TIME_MS);
2185 ret = regmap_read_poll_timeout(cs42l42->regmap,
2186 CS42L42_CODEC_STATUS, reg,
2187 (reg & CS42L42_PDN_DONE_MASK),
2188 CS42L42_PDN_DONE_POLL_US,
2189 CS42L42_PDN_DONE_TIMEOUT_US);
2190 if (ret)
2191 dev_warn(dev, "Failed to get PDN_DONE: %d\n", ret);
2192
2193 /* Discharge FILT+ */
2194 regmap_update_bits(map: cs42l42->regmap, CS42L42_PWR_CTL2,
2195 CS42L42_DISCHARGE_FILT_MASK, CS42L42_DISCHARGE_FILT_MASK);
2196
2197 regcache_cache_only(map: cs42l42->regmap, enable: true);
2198 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 0);
2199 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), consumers: cs42l42->supplies);
2200
2201 /* Restore register values to the regmap cache */
2202 for (i = 0; i < ARRAY_SIZE(cs42l42_shutdown_seq); ++i)
2203 regmap_write(map: cs42l42->regmap, reg: cs42l42_shutdown_seq[i].reg, val: save_regs[i]);
2204
2205 /* The cached address page register value is now stale */
2206 regcache_drop_region(map: cs42l42->regmap, CS42L42_PAGE_REGISTER, CS42L42_PAGE_REGISTER);
2207
2208 dev_dbg(dev, "System suspended\n");
2209
2210 return 0;
2211
2212}
2213EXPORT_SYMBOL_NS_GPL(cs42l42_suspend, "SND_SOC_CS42L42_CORE");
2214
2215int cs42l42_resume(struct device *dev)
2216{
2217 struct cs42l42_private *cs42l42 = dev_get_drvdata(dev);
2218 int ret;
2219
2220 if (!cs42l42->init_done)
2221 return 0;
2222
2223 /*
2224 * If jack was unplugged and re-plugged during suspend it could
2225 * have changed type but the tip-sense state hasn't changed.
2226 * Force a plugged state to be re-evaluated.
2227 */
2228 if (cs42l42->plug_state != CS42L42_TS_UNPLUG)
2229 cs42l42->plug_state = CS42L42_TS_TRANS;
2230
2231 ret = regulator_bulk_enable(ARRAY_SIZE(cs42l42->supplies), consumers: cs42l42->supplies);
2232 if (ret != 0) {
2233 dev_err(dev, "Failed to enable supplies: %d\n", ret);
2234 return ret;
2235 }
2236
2237 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 1);
2238 usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
2239
2240 dev_dbg(dev, "System resume powered up\n");
2241
2242 return 0;
2243}
2244EXPORT_SYMBOL_NS_GPL(cs42l42_resume, "SND_SOC_CS42L42_CORE");
2245
2246void cs42l42_resume_restore(struct device *dev)
2247{
2248 struct cs42l42_private *cs42l42 = dev_get_drvdata(dev);
2249
2250 regcache_cache_only(map: cs42l42->regmap, enable: false);
2251 regcache_mark_dirty(map: cs42l42->regmap);
2252
2253 mutex_lock(&cs42l42->irq_lock);
2254 /* Sync LATCH_TO_VP first so the VP domain registers sync correctly */
2255 regcache_sync_region(map: cs42l42->regmap, CS42L42_MIC_DET_CTL1, CS42L42_MIC_DET_CTL1);
2256 regcache_sync(map: cs42l42->regmap);
2257
2258 cs42l42->suspended = false;
2259 mutex_unlock(lock: &cs42l42->irq_lock);
2260
2261 dev_dbg(dev, "System resumed\n");
2262}
2263EXPORT_SYMBOL_NS_GPL(cs42l42_resume_restore, "SND_SOC_CS42L42_CORE");
2264
2265static int __maybe_unused cs42l42_i2c_resume(struct device *dev)
2266{
2267 int ret;
2268
2269 ret = cs42l42_resume(dev);
2270 if (ret)
2271 return ret;
2272
2273 cs42l42_resume_restore(dev);
2274
2275 return 0;
2276}
2277
2278int cs42l42_common_probe(struct cs42l42_private *cs42l42,
2279 const struct snd_soc_component_driver *component_drv,
2280 struct snd_soc_dai_driver *dai)
2281{
2282 int ret, i;
2283
2284 dev_set_drvdata(dev: cs42l42->dev, data: cs42l42);
2285 mutex_init(&cs42l42->irq_lock);
2286
2287 BUILD_BUG_ON(ARRAY_SIZE(cs42l42_supply_names) != ARRAY_SIZE(cs42l42->supplies));
2288 for (i = 0; i < ARRAY_SIZE(cs42l42->supplies); i++)
2289 cs42l42->supplies[i].supply = cs42l42_supply_names[i];
2290
2291 ret = devm_regulator_bulk_get(dev: cs42l42->dev,
2292 ARRAY_SIZE(cs42l42->supplies),
2293 consumers: cs42l42->supplies);
2294 if (ret != 0) {
2295 dev_err(cs42l42->dev,
2296 "Failed to request supplies: %d\n", ret);
2297 return ret;
2298 }
2299
2300 ret = regulator_bulk_enable(ARRAY_SIZE(cs42l42->supplies),
2301 consumers: cs42l42->supplies);
2302 if (ret != 0) {
2303 dev_err(cs42l42->dev,
2304 "Failed to enable supplies: %d\n", ret);
2305 return ret;
2306 }
2307
2308 /* Reset the Device */
2309 cs42l42->reset_gpio = devm_gpiod_get_optional(dev: cs42l42->dev,
2310 con_id: "reset", flags: GPIOD_OUT_LOW);
2311 if (IS_ERR(ptr: cs42l42->reset_gpio)) {
2312 ret = PTR_ERR(ptr: cs42l42->reset_gpio);
2313 goto err_disable_noreset;
2314 }
2315
2316 if (cs42l42->reset_gpio) {
2317 dev_dbg(cs42l42->dev, "Found reset GPIO\n");
2318
2319 /*
2320 * ACPI can override the default GPIO state we requested
2321 * so ensure that we start with RESET low.
2322 */
2323 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 0);
2324
2325 /* Ensure minimum reset pulse width */
2326 usleep_range(min: 10, max: 500);
2327
2328 /*
2329 * On SoundWire keep the chip in reset until we get an UNATTACH
2330 * notification from the SoundWire core. This acts as a
2331 * synchronization point to reject stale ATTACH notifications
2332 * if the chip was already enumerated before we reset it.
2333 */
2334 if (cs42l42->sdw_peripheral)
2335 cs42l42->sdw_waiting_first_unattach = true;
2336 else
2337 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 1);
2338 }
2339 usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2);
2340
2341 /* Request IRQ if one was specified */
2342 if (cs42l42->irq) {
2343 ret = request_threaded_irq(irq: cs42l42->irq,
2344 NULL, thread_fn: cs42l42_irq_thread,
2345 IRQF_ONESHOT | IRQF_TRIGGER_LOW,
2346 name: "cs42l42", dev: cs42l42);
2347 if (ret) {
2348 dev_err_probe(dev: cs42l42->dev, err: ret,
2349 fmt: "Failed to request IRQ\n");
2350 goto err_disable_noirq;
2351 }
2352 }
2353
2354 /* Register codec now so it can EPROBE_DEFER */
2355 ret = devm_snd_soc_register_component(dev: cs42l42->dev, component_driver: component_drv, dai_drv: dai, num_dai: 1);
2356 if (ret < 0)
2357 goto err;
2358
2359 return 0;
2360
2361err:
2362 if (cs42l42->irq)
2363 free_irq(cs42l42->irq, cs42l42);
2364
2365err_disable_noirq:
2366 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 0);
2367err_disable_noreset:
2368 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), consumers: cs42l42->supplies);
2369
2370 return ret;
2371}
2372EXPORT_SYMBOL_NS_GPL(cs42l42_common_probe, "SND_SOC_CS42L42_CORE");
2373
2374int cs42l42_init(struct cs42l42_private *cs42l42)
2375{
2376 unsigned int reg;
2377 int devid, ret;
2378
2379 /* initialize codec */
2380 devid = cirrus_read_device_id(regmap: cs42l42->regmap, CS42L42_DEVID_AB);
2381 if (devid < 0) {
2382 ret = devid;
2383 dev_err(cs42l42->dev, "Failed to read device ID: %d\n", ret);
2384 goto err_disable;
2385 }
2386
2387 if (devid != cs42l42->devid) {
2388 ret = -ENODEV;
2389 dev_err(cs42l42->dev,
2390 "CS42L%x Device ID (%X). Expected %X\n",
2391 cs42l42->devid & 0xff, devid, cs42l42->devid);
2392 goto err_disable;
2393 }
2394
2395 ret = regmap_read(map: cs42l42->regmap, CS42L42_REVID, val: &reg);
2396 if (ret < 0) {
2397 dev_err(cs42l42->dev, "Get Revision ID failed\n");
2398 goto err_shutdown;
2399 }
2400
2401 dev_info(cs42l42->dev,
2402 "Cirrus Logic CS42L%x, Revision: %02X\n",
2403 cs42l42->devid & 0xff, reg & 0xFF);
2404
2405 /* Power up the codec */
2406 regmap_update_bits(map: cs42l42->regmap, CS42L42_PWR_CTL1,
2407 CS42L42_ASP_DAO_PDN_MASK |
2408 CS42L42_ASP_DAI_PDN_MASK |
2409 CS42L42_MIXER_PDN_MASK |
2410 CS42L42_EQ_PDN_MASK |
2411 CS42L42_HP_PDN_MASK |
2412 CS42L42_ADC_PDN_MASK |
2413 CS42L42_PDN_ALL_MASK,
2414 val: (1 << CS42L42_ASP_DAO_PDN_SHIFT) |
2415 (1 << CS42L42_ASP_DAI_PDN_SHIFT) |
2416 (1 << CS42L42_MIXER_PDN_SHIFT) |
2417 (1 << CS42L42_EQ_PDN_SHIFT) |
2418 (1 << CS42L42_HP_PDN_SHIFT) |
2419 (1 << CS42L42_ADC_PDN_SHIFT) |
2420 (0 << CS42L42_PDN_ALL_SHIFT));
2421
2422 ret = cs42l42_handle_device_data(dev: cs42l42->dev, cs42l42);
2423 if (ret != 0)
2424 goto err_shutdown;
2425
2426 /*
2427 * SRC power is linked to ASP power so doesn't work in Soundwire mode.
2428 * Override it and use DAPM to control SRC power for Soundwire.
2429 */
2430 if (cs42l42->sdw_peripheral) {
2431 regmap_update_bits(map: cs42l42->regmap, CS42L42_PWR_CTL2,
2432 CS42L42_SRC_PDN_OVERRIDE_MASK |
2433 CS42L42_DAC_SRC_PDNB_MASK |
2434 CS42L42_ADC_SRC_PDNB_MASK,
2435 CS42L42_SRC_PDN_OVERRIDE_MASK);
2436 }
2437
2438 /* Setup headset detection */
2439 cs42l42_setup_hs_type_detect(cs42l42);
2440
2441 /*
2442 * Set init_done before unmasking interrupts so any triggered
2443 * immediately will be handled.
2444 */
2445 cs42l42->init_done = true;
2446
2447 /* Mask/Unmask Interrupts */
2448 cs42l42_set_interrupt_masks(cs42l42);
2449
2450 return 0;
2451
2452err_shutdown:
2453 regmap_write(map: cs42l42->regmap, CS42L42_CODEC_INT_MASK, val: 0xff);
2454 regmap_write(map: cs42l42->regmap, CS42L42_TSRS_PLUG_INT_MASK, val: 0xff);
2455 regmap_write(map: cs42l42->regmap, CS42L42_PWR_CTL1, val: 0xff);
2456
2457err_disable:
2458 if (cs42l42->irq)
2459 free_irq(cs42l42->irq, cs42l42);
2460
2461 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 0);
2462 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies),
2463 consumers: cs42l42->supplies);
2464 return ret;
2465}
2466EXPORT_SYMBOL_NS_GPL(cs42l42_init, "SND_SOC_CS42L42_CORE");
2467
2468void cs42l42_common_remove(struct cs42l42_private *cs42l42)
2469{
2470 if (cs42l42->irq)
2471 free_irq(cs42l42->irq, cs42l42);
2472
2473 /*
2474 * The driver might not have control of reset and power supplies,
2475 * so ensure that the chip internals are powered down.
2476 */
2477 if (cs42l42->init_done) {
2478 regmap_write(map: cs42l42->regmap, CS42L42_CODEC_INT_MASK, val: 0xff);
2479 regmap_write(map: cs42l42->regmap, CS42L42_TSRS_PLUG_INT_MASK, val: 0xff);
2480 regmap_write(map: cs42l42->regmap, CS42L42_PWR_CTL1, val: 0xff);
2481 }
2482
2483 gpiod_set_value_cansleep(desc: cs42l42->reset_gpio, value: 0);
2484 regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), consumers: cs42l42->supplies);
2485}
2486EXPORT_SYMBOL_NS_GPL(cs42l42_common_remove, "SND_SOC_CS42L42_CORE");
2487
2488MODULE_DESCRIPTION("ASoC CS42L42 driver");
2489MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
2490MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
2491MODULE_AUTHOR("Michael White, Cirrus Logic Inc, <michael.white@cirrus.com>");
2492MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
2493MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
2494MODULE_AUTHOR("Vitaly Rodionov <vitalyr@opensource.cirrus.com>");
2495MODULE_LICENSE("GPL");
2496

source code of linux/sound/soc/codecs/cs42l42.c