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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * cs35l33.c -- CS35L33 ALSA SoC audio driver
4 *
5 * Copyright 2016 Cirrus Logic, Inc.
6 *
7 * Author: Paul Handrigan <paul.handrigan@cirrus.com>
8 */
9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/delay.h>
14#include <linux/i2c.h>
15#include <linux/slab.h>
16#include <linux/workqueue.h>
17#include <linux/platform_device.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/soc-dapm.h>
23#include <sound/initval.h>
24#include <sound/tlv.h>
25#include <linux/gpio/consumer.h>
26#include <sound/cs35l33.h>
27#include <linux/pm_runtime.h>
28#include <linux/regulator/consumer.h>
29#include <linux/regulator/machine.h>
30#include <linux/of.h>
31
32#include "cs35l33.h"
33#include "cirrus_legacy.h"
34
35#define CS35L33_BOOT_DELAY 50
36
37struct cs35l33_private {
38 struct snd_soc_component *component;
39 struct cs35l33_pdata pdata;
40 struct regmap *regmap;
41 struct gpio_desc *reset_gpio;
42 bool amp_cal;
43 int mclk_int;
44 struct regulator_bulk_data core_supplies[2];
45 int num_core_supplies;
46 bool is_tdm_mode;
47 bool enable_soft_ramp;
48};
49
50static const struct reg_default cs35l33_reg[] = {
51 {CS35L33_PWRCTL1, 0x85},
52 {CS35L33_PWRCTL2, 0xFE},
53 {CS35L33_CLK_CTL, 0x0C},
54 {CS35L33_BST_PEAK_CTL, 0x90},
55 {CS35L33_PROTECT_CTL, 0x55},
56 {CS35L33_BST_CTL1, 0x00},
57 {CS35L33_BST_CTL2, 0x01},
58 {CS35L33_ADSP_CTL, 0x00},
59 {CS35L33_ADC_CTL, 0xC8},
60 {CS35L33_DAC_CTL, 0x14},
61 {CS35L33_DIG_VOL_CTL, 0x00},
62 {CS35L33_CLASSD_CTL, 0x04},
63 {CS35L33_AMP_CTL, 0x90},
64 {CS35L33_INT_MASK_1, 0xFF},
65 {CS35L33_INT_MASK_2, 0xFF},
66 {CS35L33_DIAG_LOCK, 0x00},
67 {CS35L33_DIAG_CTRL_1, 0x40},
68 {CS35L33_DIAG_CTRL_2, 0x00},
69 {CS35L33_HG_MEMLDO_CTL, 0x62},
70 {CS35L33_HG_REL_RATE, 0x03},
71 {CS35L33_LDO_DEL, 0x12},
72 {CS35L33_HG_HEAD, 0x0A},
73 {CS35L33_HG_EN, 0x05},
74 {CS35L33_TX_VMON, 0x00},
75 {CS35L33_TX_IMON, 0x03},
76 {CS35L33_TX_VPMON, 0x02},
77 {CS35L33_TX_VBSTMON, 0x05},
78 {CS35L33_TX_FLAG, 0x06},
79 {CS35L33_TX_EN1, 0x00},
80 {CS35L33_TX_EN2, 0x00},
81 {CS35L33_TX_EN3, 0x00},
82 {CS35L33_TX_EN4, 0x00},
83 {CS35L33_RX_AUD, 0x40},
84 {CS35L33_RX_SPLY, 0x03},
85 {CS35L33_RX_ALIVE, 0x04},
86 {CS35L33_BST_CTL4, 0x63},
87};
88
89static const struct reg_sequence cs35l33_patch[] = {
90 { 0x00, 0x99, 0 },
91 { 0x59, 0x02, 0 },
92 { 0x52, 0x30, 0 },
93 { 0x39, 0x45, 0 },
94 { 0x57, 0x30, 0 },
95 { 0x2C, 0x68, 0 },
96 { 0x00, 0x00, 0 },
97};
98
99static bool cs35l33_volatile_register(struct device *dev, unsigned int reg)
100{
101 switch (reg) {
102 case CS35L33_DEVID_AB:
103 case CS35L33_DEVID_CD:
104 case CS35L33_DEVID_E:
105 case CS35L33_REV_ID:
106 case CS35L33_INT_STATUS_1:
107 case CS35L33_INT_STATUS_2:
108 case CS35L33_HG_STATUS:
109 return true;
110 default:
111 return false;
112 }
113}
114
115static bool cs35l33_writeable_register(struct device *dev, unsigned int reg)
116{
117 switch (reg) {
118 /* these are read only registers */
119 case CS35L33_DEVID_AB:
120 case CS35L33_DEVID_CD:
121 case CS35L33_DEVID_E:
122 case CS35L33_REV_ID:
123 case CS35L33_INT_STATUS_1:
124 case CS35L33_INT_STATUS_2:
125 case CS35L33_HG_STATUS:
126 return false;
127 default:
128 return true;
129 }
130}
131
132static bool cs35l33_readable_register(struct device *dev, unsigned int reg)
133{
134 switch (reg) {
135 case CS35L33_DEVID_AB:
136 case CS35L33_DEVID_CD:
137 case CS35L33_DEVID_E:
138 case CS35L33_REV_ID:
139 case CS35L33_PWRCTL1:
140 case CS35L33_PWRCTL2:
141 case CS35L33_CLK_CTL:
142 case CS35L33_BST_PEAK_CTL:
143 case CS35L33_PROTECT_CTL:
144 case CS35L33_BST_CTL1:
145 case CS35L33_BST_CTL2:
146 case CS35L33_ADSP_CTL:
147 case CS35L33_ADC_CTL:
148 case CS35L33_DAC_CTL:
149 case CS35L33_DIG_VOL_CTL:
150 case CS35L33_CLASSD_CTL:
151 case CS35L33_AMP_CTL:
152 case CS35L33_INT_MASK_1:
153 case CS35L33_INT_MASK_2:
154 case CS35L33_INT_STATUS_1:
155 case CS35L33_INT_STATUS_2:
156 case CS35L33_DIAG_LOCK:
157 case CS35L33_DIAG_CTRL_1:
158 case CS35L33_DIAG_CTRL_2:
159 case CS35L33_HG_MEMLDO_CTL:
160 case CS35L33_HG_REL_RATE:
161 case CS35L33_LDO_DEL:
162 case CS35L33_HG_HEAD:
163 case CS35L33_HG_EN:
164 case CS35L33_TX_VMON:
165 case CS35L33_TX_IMON:
166 case CS35L33_TX_VPMON:
167 case CS35L33_TX_VBSTMON:
168 case CS35L33_TX_FLAG:
169 case CS35L33_TX_EN1:
170 case CS35L33_TX_EN2:
171 case CS35L33_TX_EN3:
172 case CS35L33_TX_EN4:
173 case CS35L33_RX_AUD:
174 case CS35L33_RX_SPLY:
175 case CS35L33_RX_ALIVE:
176 case CS35L33_BST_CTL4:
177 return true;
178 default:
179 return false;
180 }
181}
182
183static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0);
184static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0);
185
186static const struct snd_kcontrol_new cs35l33_snd_controls[] = {
187
188 SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL,
189 4, 0x09, 0, classd_ctl_tlv),
190 SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL,
191 0, 0x34, 0xE4, dac_tlv),
192};
193
194static int cs35l33_spkrdrv_event(struct snd_soc_dapm_widget *w,
195 struct snd_kcontrol *kcontrol, int event)
196{
197 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
198 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
199
200 switch (event) {
201 case SND_SOC_DAPM_POST_PMU:
202 if (!priv->amp_cal) {
203 usleep_range(8000, 9000);
204 priv->amp_cal = true;
205 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
206 CS35L33_AMP_CAL, 0);
207 dev_dbg(component->dev, "Amp calibration done\n");
208 }
209 dev_dbg(component->dev, "Amp turned on\n");
210 break;
211 case SND_SOC_DAPM_POST_PMD:
212 dev_dbg(component->dev, "Amp turned off\n");
213 break;
214 default:
215 dev_err(component->dev, "Invalid event = 0x%x\n", event);
216 break;
217 }
218
219 return 0;
220}
221
222static int cs35l33_sdin_event(struct snd_soc_dapm_widget *w,
223 struct snd_kcontrol *kcontrol, int event)
224{
225 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
226 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
227 unsigned int val;
228
229 switch (event) {
230 case SND_SOC_DAPM_PRE_PMU:
231 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
232 CS35L33_PDN_BST, 0);
233 val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM;
234 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
235 CS35L33_PDN_TDM, val);
236 dev_dbg(component->dev, "BST turned on\n");
237 break;
238 case SND_SOC_DAPM_POST_PMU:
239 dev_dbg(component->dev, "SDIN turned on\n");
240 if (!priv->amp_cal) {
241 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
242 CS35L33_AMP_CAL, CS35L33_AMP_CAL);
243 dev_dbg(component->dev, "Amp calibration started\n");
244 usleep_range(10000, 11000);
245 }
246 break;
247 case SND_SOC_DAPM_POST_PMD:
248 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
249 CS35L33_PDN_TDM, CS35L33_PDN_TDM);
250 usleep_range(4000, 4100);
251 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
252 CS35L33_PDN_BST, CS35L33_PDN_BST);
253 dev_dbg(component->dev, "BST and SDIN turned off\n");
254 break;
255 default:
256 dev_err(component->dev, "Invalid event = 0x%x\n", event);
257
258 }
259
260 return 0;
261}
262
263static int cs35l33_sdout_event(struct snd_soc_dapm_widget *w,
264 struct snd_kcontrol *kcontrol, int event)
265{
266 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
267 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
268 unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
269 unsigned int mask2 = CS35L33_SDOUT_3ST_TDM;
270 unsigned int val, val2;
271
272 switch (event) {
273 case SND_SOC_DAPM_PRE_PMU:
274 if (priv->is_tdm_mode) {
275 /* set sdout_3st_i2s and reset pdn_tdm */
276 val = CS35L33_SDOUT_3ST_I2S;
277 /* reset sdout_3st_tdm */
278 val2 = 0;
279 } else {
280 /* reset sdout_3st_i2s and set pdn_tdm */
281 val = CS35L33_PDN_TDM;
282 /* set sdout_3st_tdm */
283 val2 = CS35L33_SDOUT_3ST_TDM;
284 }
285 dev_dbg(component->dev, "SDOUT turned on\n");
286 break;
287 case SND_SOC_DAPM_PRE_PMD:
288 val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
289 val2 = CS35L33_SDOUT_3ST_TDM;
290 dev_dbg(component->dev, "SDOUT turned off\n");
291 break;
292 default:
293 dev_err(component->dev, "Invalid event = 0x%x\n", event);
294 return 0;
295 }
296
297 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
298 mask, val);
299 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
300 mask2, val2);
301
302 return 0;
303}
304
305static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = {
306
307 SND_SOC_DAPM_OUTPUT("SPK"),
308 SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0,
309 cs35l33_spkrdrv_event,
310 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
311 SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2,
312 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU |
313 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
314
315 SND_SOC_DAPM_INPUT("MON"),
316
317 SND_SOC_DAPM_ADC("VMON", NULL,
318 CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1),
319 SND_SOC_DAPM_ADC("IMON", NULL,
320 CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1),
321 SND_SOC_DAPM_ADC("VPMON", NULL,
322 CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1),
323 SND_SOC_DAPM_ADC("VBSTMON", NULL,
324 CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1),
325
326 SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0,
327 cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU |
328 SND_SOC_DAPM_PRE_PMD),
329};
330
331static const struct snd_soc_dapm_route cs35l33_audio_map[] = {
332 {"SDIN", NULL, "CS35L33 Playback"},
333 {"SPKDRV", NULL, "SDIN"},
334 {"SPK", NULL, "SPKDRV"},
335
336 {"VMON", NULL, "MON"},
337 {"IMON", NULL, "MON"},
338
339 {"SDOUT", NULL, "VMON"},
340 {"SDOUT", NULL, "IMON"},
341 {"CS35L33 Capture", NULL, "SDOUT"},
342};
343
344static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = {
345 {"SPKDRV", NULL, "VPMON"},
346 {"VPMON", NULL, "CS35L33 Playback"},
347};
348
349static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = {
350 {"SDOUT", NULL, "VPMON"},
351 {"VPMON", NULL, "MON"},
352 {"SDOUT", NULL, "VBSTMON"},
353 {"VBSTMON", NULL, "MON"},
354};
355
356static int cs35l33_set_bias_level(struct snd_soc_component *component,
357 enum snd_soc_bias_level level)
358{
359 unsigned int val;
360 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
361
362 switch (level) {
363 case SND_SOC_BIAS_ON:
364 break;
365 case SND_SOC_BIAS_PREPARE:
366 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
367 CS35L33_PDN_ALL, 0);
368 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
369 CS35L33_MCLKDIS, 0);
370 break;
371 case SND_SOC_BIAS_STANDBY:
372 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
373 CS35L33_PDN_ALL, CS35L33_PDN_ALL);
374 regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val);
375 usleep_range(1000, 1100);
376 if (val & CS35L33_PDN_DONE)
377 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
378 CS35L33_MCLKDIS, CS35L33_MCLKDIS);
379 break;
380 case SND_SOC_BIAS_OFF:
381 break;
382 default:
383 return -EINVAL;
384 }
385
386 return 0;
387}
388
389struct cs35l33_mclk_div {
390 int mclk;
391 int srate;
392 u8 adsp_rate;
393 u8 int_fs_ratio;
394};
395
396static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = {
397 /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */
398 {5644800, 11025, 0x4, CS35L33_INT_FS_RATE},
399 {5644800, 22050, 0x8, CS35L33_INT_FS_RATE},
400 {5644800, 44100, 0xC, CS35L33_INT_FS_RATE},
401
402 {6000000, 8000, 0x1, 0},
403 {6000000, 11025, 0x2, 0},
404 {6000000, 11029, 0x3, 0},
405 {6000000, 12000, 0x4, 0},
406 {6000000, 16000, 0x5, 0},
407 {6000000, 22050, 0x6, 0},
408 {6000000, 22059, 0x7, 0},
409 {6000000, 24000, 0x8, 0},
410 {6000000, 32000, 0x9, 0},
411 {6000000, 44100, 0xA, 0},
412 {6000000, 44118, 0xB, 0},
413 {6000000, 48000, 0xC, 0},
414
415 {6144000, 8000, 0x1, CS35L33_INT_FS_RATE},
416 {6144000, 12000, 0x4, CS35L33_INT_FS_RATE},
417 {6144000, 16000, 0x5, CS35L33_INT_FS_RATE},
418 {6144000, 24000, 0x8, CS35L33_INT_FS_RATE},
419 {6144000, 32000, 0x9, CS35L33_INT_FS_RATE},
420 {6144000, 48000, 0xC, CS35L33_INT_FS_RATE},
421};
422
423static int cs35l33_get_mclk_coeff(int mclk, int srate)
424{
425 int i;
426
427 for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) {
428 if (cs35l33_mclk_coeffs[i].mclk == mclk &&
429 cs35l33_mclk_coeffs[i].srate == srate)
430 return i;
431 }
432 return -EINVAL;
433}
434
435static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
436{
437 struct snd_soc_component *component = codec_dai->component;
438 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
439
440 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
441 case SND_SOC_DAIFMT_CBM_CFM:
442 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
443 CS35L33_MS_MASK, CS35L33_MS_MASK);
444 dev_dbg(component->dev, "Audio port in master mode\n");
445 break;
446 case SND_SOC_DAIFMT_CBS_CFS:
447 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
448 CS35L33_MS_MASK, 0);
449 dev_dbg(component->dev, "Audio port in slave mode\n");
450 break;
451 default:
452 return -EINVAL;
453 }
454
455 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
456 case SND_SOC_DAIFMT_DSP_A:
457 /*
458 * tdm mode in cs35l33 resembles dsp-a mode very
459 * closely, it is dsp-a with fsync shifted left by half bclk
460 */
461 priv->is_tdm_mode = true;
462 dev_dbg(component->dev, "Audio port in TDM mode\n");
463 break;
464 case SND_SOC_DAIFMT_I2S:
465 priv->is_tdm_mode = false;
466 dev_dbg(component->dev, "Audio port in I2S mode\n");
467 break;
468 default:
469 return -EINVAL;
470 }
471
472 return 0;
473}
474
475static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream,
476 struct snd_pcm_hw_params *params,
477 struct snd_soc_dai *dai)
478{
479 struct snd_soc_component *component = dai->component;
480 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
481 int sample_size = params_width(params);
482 int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));
483
484 if (coeff < 0)
485 return coeff;
486
487 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
488 CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
489 cs35l33_mclk_coeffs[coeff].int_fs_ratio
490 | cs35l33_mclk_coeffs[coeff].adsp_rate);
491
492 if (priv->is_tdm_mode) {
493 sample_size = (sample_size / 8) - 1;
494 if (sample_size > 2)
495 sample_size = 2;
496 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
497 CS35L33_AUDIN_RX_DEPTH,
498 sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
499 }
500
501 dev_dbg(component->dev, "sample rate=%d, bits per sample=%d\n",
502 params_rate(params), params_width(params));
503
504 return 0;
505}
506
507static const unsigned int cs35l33_src_rates[] = {
508 8000, 11025, 11029, 12000, 16000, 22050,
509 22059, 24000, 32000, 44100, 44118, 48000
510};
511
512static const struct snd_pcm_hw_constraint_list cs35l33_constraints = {
513 .count = ARRAY_SIZE(cs35l33_src_rates),
514 .list = cs35l33_src_rates,
515};
516
517static int cs35l33_pcm_startup(struct snd_pcm_substream *substream,
518 struct snd_soc_dai *dai)
519{
520 snd_pcm_hw_constraint_list(substream->runtime, 0,
521 SNDRV_PCM_HW_PARAM_RATE,
522 &cs35l33_constraints);
523 return 0;
524}
525
526static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate)
527{
528 struct snd_soc_component *component = dai->component;
529 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
530
531 if (tristate) {
532 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
533 CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S);
534 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
535 CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM);
536 } else {
537 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
538 CS35L33_SDOUT_3ST_I2S, 0);
539 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
540 CS35L33_SDOUT_3ST_TDM, 0);
541 }
542
543 return 0;
544}
545
546static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
547 unsigned int rx_mask, int slots, int slot_width)
548{
549 struct snd_soc_component *component = dai->component;
550 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
551 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
552 unsigned int reg, bit_pos, i;
553 int slot, slot_num;
554
555 if (slot_width != 8)
556 return -EINVAL;
557
558 /* scan rx_mask for aud slot */
559 slot = ffs(rx_mask) - 1;
560 if (slot >= 0) {
561 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
562 CS35L33_X_LOC, slot);
563 dev_dbg(component->dev, "Audio starts from slots %d", slot);
564 }
565
566 /*
567 * scan tx_mask: vmon(2 slots); imon (2 slots);
568 * vpmon (1 slot) vbstmon (1 slot)
569 */
570 slot = ffs(tx_mask) - 1;
571 slot_num = 0;
572
573 for (i = 0; i < 2 ; i++) {
574 /* disable vpmon/vbstmon: enable later if set in tx_mask */
575 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i,
576 CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE
577 | CS35L33_X_LOC);
578 }
579
580 /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/
581 snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route,
582 ARRAY_SIZE(cs35l33_vp_vbst_mon_route));
583
584 while (slot >= 0) {
585 /* configure VMON_TX_LOC */
586 if (slot_num == 0) {
587 regmap_update_bits(priv->regmap, CS35L33_TX_VMON,
588 CS35L33_X_STATE | CS35L33_X_LOC, slot);
589 dev_dbg(component->dev, "VMON enabled in slots %d-%d",
590 slot, slot + 1);
591 }
592
593 /* configure IMON_TX_LOC */
594 if (slot_num == 3) {
595 regmap_update_bits(priv->regmap, CS35L33_TX_IMON,
596 CS35L33_X_STATE | CS35L33_X_LOC, slot);
597 dev_dbg(component->dev, "IMON enabled in slots %d-%d",
598 slot, slot + 1);
599 }
600
601 /* configure VPMON_TX_LOC */
602 if (slot_num == 4) {
603 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON,
604 CS35L33_X_STATE | CS35L33_X_LOC, slot);
605 snd_soc_dapm_add_routes(dapm,
606 &cs35l33_vp_vbst_mon_route[0], 2);
607 dev_dbg(component->dev, "VPMON enabled in slots %d", slot);
608 }
609
610 /* configure VBSTMON_TX_LOC */
611 if (slot_num == 5) {
612 regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON,
613 CS35L33_X_STATE | CS35L33_X_LOC, slot);
614 snd_soc_dapm_add_routes(dapm,
615 &cs35l33_vp_vbst_mon_route[2], 2);
616 dev_dbg(component->dev,
617 "VBSTMON enabled in slots %d", slot);
618 }
619
620 /* Enable the relevant tx slot */
621 reg = CS35L33_TX_EN4 - (slot/8);
622 bit_pos = slot - ((slot / 8) * (8));
623 regmap_update_bits(priv->regmap, reg,
624 1 << bit_pos, 1 << bit_pos);
625
626 tx_mask &= ~(1 << slot);
627 slot = ffs(tx_mask) - 1;
628 slot_num++;
629 }
630
631 return 0;
632}
633
634static int cs35l33_component_set_sysclk(struct snd_soc_component *component,
635 int clk_id, int source, unsigned int freq, int dir)
636{
637 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
638
639 switch (freq) {
640 case CS35L33_MCLK_5644:
641 case CS35L33_MCLK_6:
642 case CS35L33_MCLK_6144:
643 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
644 CS35L33_MCLKDIV2, 0);
645 cs35l33->mclk_int = freq;
646 break;
647 case CS35L33_MCLK_11289:
648 case CS35L33_MCLK_12:
649 case CS35L33_MCLK_12288:
650 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
651 CS35L33_MCLKDIV2, CS35L33_MCLKDIV2);
652 cs35l33->mclk_int = freq/2;
653 break;
654 default:
655 cs35l33->mclk_int = 0;
656 return -EINVAL;
657 }
658
659 dev_dbg(component->dev, "external mclk freq=%d, internal mclk freq=%d\n",
660 freq, cs35l33->mclk_int);
661
662 return 0;
663}
664
665static const struct snd_soc_dai_ops cs35l33_ops = {
666 .startup = cs35l33_pcm_startup,
667 .set_tristate = cs35l33_set_tristate,
668 .set_fmt = cs35l33_set_dai_fmt,
669 .hw_params = cs35l33_pcm_hw_params,
670 .set_tdm_slot = cs35l33_set_tdm_slot,
671};
672
673static struct snd_soc_dai_driver cs35l33_dai = {
674 .name = "cs35l33-dai",
675 .id = 0,
676 .playback = {
677 .stream_name = "CS35L33 Playback",
678 .channels_min = 1,
679 .channels_max = 1,
680 .rates = CS35L33_RATES,
681 .formats = CS35L33_FORMATS,
682 },
683 .capture = {
684 .stream_name = "CS35L33 Capture",
685 .channels_min = 2,
686 .channels_max = 2,
687 .rates = CS35L33_RATES,
688 .formats = CS35L33_FORMATS,
689 },
690 .ops = &cs35l33_ops,
691 .symmetric_rate = 1,
692};
693
694static int cs35l33_set_hg_data(struct snd_soc_component *component,
695 struct cs35l33_pdata *pdata)
696{
697 struct cs35l33_hg *hg_config = &pdata->hg_config;
698 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
699 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
700
701 if (hg_config->enable_hg_algo) {
702 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
703 CS35L33_MEM_DEPTH_MASK,
704 hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT);
705 regmap_write(priv->regmap, CS35L33_HG_REL_RATE,
706 hg_config->release_rate);
707 regmap_update_bits(priv->regmap, CS35L33_HG_HEAD,
708 CS35L33_HD_RM_MASK,
709 hg_config->hd_rm << CS35L33_HD_RM_SHIFT);
710 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
711 CS35L33_LDO_THLD_MASK,
712 hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT);
713 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
714 CS35L33_LDO_DISABLE_MASK,
715 hg_config->ldo_path_disable <<
716 CS35L33_LDO_DISABLE_SHIFT);
717 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
718 CS35L33_LDO_ENTRY_DELAY_MASK,
719 hg_config->ldo_entry_delay <<
720 CS35L33_LDO_ENTRY_DELAY_SHIFT);
721 if (hg_config->vp_hg_auto) {
722 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
723 CS35L33_VP_HG_AUTO_MASK,
724 CS35L33_VP_HG_AUTO_MASK);
725 snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route,
726 ARRAY_SIZE(cs35l33_vphg_auto_route));
727 }
728 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
729 CS35L33_VP_HG_MASK,
730 hg_config->vp_hg << CS35L33_VP_HG_SHIFT);
731 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
732 CS35L33_VP_HG_RATE_MASK,
733 hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT);
734 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
735 CS35L33_VP_HG_VA_MASK,
736 hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT);
737 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
738 CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK);
739 }
740 return 0;
741}
742
743static int cs35l33_set_bst_ipk(struct snd_soc_component *component, unsigned int bst)
744{
745 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
746 int ret = 0, steps = 0;
747
748 /* Boost current in uA */
749 if (bst > 3600000 || bst < 1850000) {
750 dev_err(component->dev, "Invalid boost current %d\n", bst);
751 ret = -EINVAL;
752 goto err;
753 }
754
755 if (bst % 15625) {
756 dev_err(component->dev, "Current not a multiple of 15625uA (%d)\n",
757 bst);
758 ret = -EINVAL;
759 goto err;
760 }
761
762 while (bst > 1850000) {
763 bst -= 15625;
764 steps++;
765 }
766
767 regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL,
768 steps+0x70);
769
770err:
771 return ret;
772}
773
774static int cs35l33_probe(struct snd_soc_component *component)
775{
776 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
777
778 cs35l33->component = component;
779 pm_runtime_get_sync(component->dev);
780
781 regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL,
782 CS35L33_ALIVE_WD_DIS, 0x8);
783 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2,
784 CS35L33_ALIVE_WD_DIS2,
785 CS35L33_ALIVE_WD_DIS2);
786
787 /* Set Platform Data */
788 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1,
789 CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl);
790 regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL,
791 CS35L33_AMP_DRV_SEL_MASK,
792 cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT);
793
794 if (cs35l33->pdata.boost_ipk)
795 cs35l33_set_bst_ipk(component, cs35l33->pdata.boost_ipk);
796
797 if (cs35l33->enable_soft_ramp) {
798 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
799 CS35L33_DIGSFT, CS35L33_DIGSFT);
800 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
801 CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate);
802 } else {
803 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
804 CS35L33_DIGSFT, 0);
805 }
806
807 /* update IMON scaling rate if different from default of 0x8 */
808 if (cs35l33->pdata.imon_adc_scale != 0x8)
809 snd_soc_component_update_bits(component, CS35L33_ADC_CTL,
810 CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale);
811
812 cs35l33_set_hg_data(component, &(cs35l33->pdata));
813
814 /*
815 * unmask important interrupts that causes the chip to enter
816 * speaker safe mode and hence deserves user attention
817 */
818 regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1,
819 CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT |
820 CS35L33_M_CAL_ERR, 0);
821
822 pm_runtime_put_sync(component->dev);
823
824 return 0;
825}
826
827static const struct snd_soc_component_driver soc_component_dev_cs35l33 = {
828 .probe = cs35l33_probe,
829 .set_bias_level = cs35l33_set_bias_level,
830 .set_sysclk = cs35l33_component_set_sysclk,
831 .controls = cs35l33_snd_controls,
832 .num_controls = ARRAY_SIZE(cs35l33_snd_controls),
833 .dapm_widgets = cs35l33_dapm_widgets,
834 .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets),
835 .dapm_routes = cs35l33_audio_map,
836 .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map),
837 .use_pmdown_time = 1,
838 .endianness = 1,
839};
840
841static const struct regmap_config cs35l33_regmap = {
842 .reg_bits = 8,
843 .val_bits = 8,
844
845 .max_register = CS35L33_MAX_REGISTER,
846 .reg_defaults = cs35l33_reg,
847 .num_reg_defaults = ARRAY_SIZE(cs35l33_reg),
848 .volatile_reg = cs35l33_volatile_register,
849 .readable_reg = cs35l33_readable_register,
850 .writeable_reg = cs35l33_writeable_register,
851 .cache_type = REGCACHE_MAPLE,
852 .use_single_read = true,
853 .use_single_write = true,
854};
855
856static int __maybe_unused cs35l33_runtime_resume(struct device *dev)
857{
858 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
859 int ret;
860
861 dev_dbg(dev, "%s\n", __func__);
862
863 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
864
865 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
866 cs35l33->core_supplies);
867 if (ret != 0) {
868 dev_err(dev, "Failed to enable core supplies: %d\n", ret);
869 return ret;
870 }
871
872 regcache_cache_only(cs35l33->regmap, false);
873
874 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
875
876 msleep(CS35L33_BOOT_DELAY);
877
878 ret = regcache_sync(cs35l33->regmap);
879 if (ret != 0) {
880 dev_err(dev, "Failed to restore register cache\n");
881 goto err;
882 }
883
884 return 0;
885
886err:
887 regcache_cache_only(cs35l33->regmap, true);
888 regulator_bulk_disable(cs35l33->num_core_supplies,
889 cs35l33->core_supplies);
890
891 return ret;
892}
893
894static int __maybe_unused cs35l33_runtime_suspend(struct device *dev)
895{
896 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
897
898 dev_dbg(dev, "%s\n", __func__);
899
900 /* redo the calibration in next power up */
901 cs35l33->amp_cal = false;
902
903 regcache_cache_only(cs35l33->regmap, true);
904 regcache_mark_dirty(cs35l33->regmap);
905 regulator_bulk_disable(cs35l33->num_core_supplies,
906 cs35l33->core_supplies);
907
908 return 0;
909}
910
911static const struct dev_pm_ops cs35l33_pm_ops = {
912 SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend,
913 cs35l33_runtime_resume,
914 NULL)
915};
916
917static int cs35l33_get_hg_data(const struct device_node *np,
918 struct cs35l33_pdata *pdata)
919{
920 struct device_node *hg;
921 struct cs35l33_hg *hg_config = &pdata->hg_config;
922 u32 val32;
923
924 hg = of_get_child_by_name(np, "cirrus,hg-algo");
925 hg_config->enable_hg_algo = hg ? true : false;
926
927 if (hg_config->enable_hg_algo) {
928 if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0)
929 hg_config->mem_depth = val32;
930 if (of_property_read_u32(hg, "cirrus,release-rate",
931 &val32) >= 0)
932 hg_config->release_rate = val32;
933 if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0)
934 hg_config->ldo_thld = val32;
935 if (of_property_read_u32(hg, "cirrus,ldo-path-disable",
936 &val32) >= 0)
937 hg_config->ldo_path_disable = val32;
938 if (of_property_read_u32(hg, "cirrus,ldo-entry-delay",
939 &val32) >= 0)
940 hg_config->ldo_entry_delay = val32;
941
942 hg_config->vp_hg_auto = of_property_read_bool(hg,
943 "cirrus,vp-hg-auto");
944
945 if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0)
946 hg_config->vp_hg = val32;
947 if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0)
948 hg_config->vp_hg_rate = val32;
949 if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0)
950 hg_config->vp_hg_va = val32;
951 }
952
953 of_node_put(hg);
954
955 return 0;
956}
957
958static irqreturn_t cs35l33_irq_thread(int irq, void *data)
959{
960 struct cs35l33_private *cs35l33 = data;
961 struct snd_soc_component *component = cs35l33->component;
962 unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2;
963
964 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2,
965 &sticky_val2);
966 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
967 &sticky_val1);
968 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2);
969 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1);
970
971 /* Check to see if the unmasked bits are active,
972 * if not then exit.
973 */
974 if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2))
975 return IRQ_NONE;
976
977 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
978 ¤t_val);
979
980 /* handle the interrupts */
981
982 if (sticky_val1 & CS35L33_AMP_SHORT) {
983 dev_crit(component->dev, "Amp short error\n");
984 if (!(current_val & CS35L33_AMP_SHORT)) {
985 dev_dbg(component->dev,
986 "Amp short error release\n");
987 regmap_update_bits(cs35l33->regmap,
988 CS35L33_AMP_CTL,
989 CS35L33_AMP_SHORT_RLS, 0);
990 regmap_update_bits(cs35l33->regmap,
991 CS35L33_AMP_CTL,
992 CS35L33_AMP_SHORT_RLS,
993 CS35L33_AMP_SHORT_RLS);
994 regmap_update_bits(cs35l33->regmap,
995 CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS,
996 0);
997 }
998 }
999
1000 if (sticky_val1 & CS35L33_CAL_ERR) {
1001 dev_err(component->dev, "Cal error\n");
1002
1003 /* redo the calibration in next power up */
1004 cs35l33->amp_cal = false;
1005
1006 if (!(current_val & CS35L33_CAL_ERR)) {
1007 dev_dbg(component->dev, "Cal error release\n");
1008 regmap_update_bits(cs35l33->regmap,
1009 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1010 0);
1011 regmap_update_bits(cs35l33->regmap,
1012 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1013 CS35L33_CAL_ERR_RLS);
1014 regmap_update_bits(cs35l33->regmap,
1015 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1016 0);
1017 }
1018 }
1019
1020 if (sticky_val1 & CS35L33_OTE) {
1021 dev_crit(component->dev, "Over temperature error\n");
1022 if (!(current_val & CS35L33_OTE)) {
1023 dev_dbg(component->dev,
1024 "Over temperature error release\n");
1025 regmap_update_bits(cs35l33->regmap,
1026 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1027 regmap_update_bits(cs35l33->regmap,
1028 CS35L33_AMP_CTL, CS35L33_OTE_RLS,
1029 CS35L33_OTE_RLS);
1030 regmap_update_bits(cs35l33->regmap,
1031 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1032 }
1033 }
1034
1035 if (sticky_val1 & CS35L33_OTW) {
1036 dev_err(component->dev, "Over temperature warning\n");
1037 if (!(current_val & CS35L33_OTW)) {
1038 dev_dbg(component->dev,
1039 "Over temperature warning release\n");
1040 regmap_update_bits(cs35l33->regmap,
1041 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1042 regmap_update_bits(cs35l33->regmap,
1043 CS35L33_AMP_CTL, CS35L33_OTW_RLS,
1044 CS35L33_OTW_RLS);
1045 regmap_update_bits(cs35l33->regmap,
1046 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1047 }
1048 }
1049 if (CS35L33_ALIVE_ERR & sticky_val1)
1050 dev_err(component->dev, "ERROR: ADSPCLK Interrupt\n");
1051
1052 if (CS35L33_MCLK_ERR & sticky_val1)
1053 dev_err(component->dev, "ERROR: MCLK Interrupt\n");
1054
1055 if (CS35L33_VMON_OVFL & sticky_val2)
1056 dev_err(component->dev,
1057 "ERROR: VMON Overflow Interrupt\n");
1058
1059 if (CS35L33_IMON_OVFL & sticky_val2)
1060 dev_err(component->dev,
1061 "ERROR: IMON Overflow Interrupt\n");
1062
1063 if (CS35L33_VPMON_OVFL & sticky_val2)
1064 dev_err(component->dev,
1065 "ERROR: VPMON Overflow Interrupt\n");
1066
1067 return IRQ_HANDLED;
1068}
1069
1070static const char * const cs35l33_core_supplies[] = {
1071 "VA",
1072 "VP",
1073};
1074
1075static int cs35l33_of_get_pdata(struct device *dev,
1076 struct cs35l33_private *cs35l33)
1077{
1078 struct device_node *np = dev->of_node;
1079 struct cs35l33_pdata *pdata = &cs35l33->pdata;
1080 u32 val32;
1081
1082 if (!np)
1083 return 0;
1084
1085 if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) {
1086 pdata->boost_ctl = val32;
1087 pdata->amp_drv_sel = 1;
1088 }
1089
1090 if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) {
1091 pdata->ramp_rate = val32;
1092 cs35l33->enable_soft_ramp = true;
1093 }
1094
1095 if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0)
1096 pdata->boost_ipk = val32;
1097
1098 if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) {
1099 if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6))
1100 pdata->imon_adc_scale = val32;
1101 else
1102 /* use default value */
1103 pdata->imon_adc_scale = 0x8;
1104 } else {
1105 /* use default value */
1106 pdata->imon_adc_scale = 0x8;
1107 }
1108
1109 cs35l33_get_hg_data(np, pdata);
1110
1111 return 0;
1112}
1113
1114static int cs35l33_i2c_probe(struct i2c_client *i2c_client)
1115{
1116 struct cs35l33_private *cs35l33;
1117 struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
1118 int ret, devid, i;
1119 unsigned int reg;
1120
1121 cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
1122 GFP_KERNEL);
1123 if (!cs35l33)
1124 return -ENOMEM;
1125
1126 i2c_set_clientdata(i2c_client, cs35l33);
1127 cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
1128 if (IS_ERR(cs35l33->regmap)) {
1129 ret = PTR_ERR(cs35l33->regmap);
1130 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1131 return ret;
1132 }
1133
1134 regcache_cache_only(cs35l33->regmap, true);
1135
1136 for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
1137 cs35l33->core_supplies[i].supply
1138 = cs35l33_core_supplies[i];
1139 cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);
1140
1141 ret = devm_regulator_bulk_get(&i2c_client->dev,
1142 cs35l33->num_core_supplies,
1143 cs35l33->core_supplies);
1144 if (ret != 0) {
1145 dev_err(&i2c_client->dev,
1146 "Failed to request core supplies: %d\n",
1147 ret);
1148 return ret;
1149 }
1150
1151 if (pdata) {
1152 cs35l33->pdata = *pdata;
1153 } else {
1154 cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
1155 pdata = &cs35l33->pdata;
1156 }
1157
1158 ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
1159 cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
1160 "cs35l33", cs35l33);
1161 if (ret != 0)
1162 dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);
1163
1164 /* We could issue !RST or skip it based on AMP topology */
1165 cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
1166 "reset", GPIOD_OUT_HIGH);
1167 if (IS_ERR(cs35l33->reset_gpio)) {
1168 dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
1169 __func__);
1170 return PTR_ERR(cs35l33->reset_gpio);
1171 }
1172
1173 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
1174 cs35l33->core_supplies);
1175 if (ret != 0) {
1176 dev_err(&i2c_client->dev,
1177 "Failed to enable core supplies: %d\n",
1178 ret);
1179 return ret;
1180 }
1181
1182 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
1183
1184 msleep(CS35L33_BOOT_DELAY);
1185 regcache_cache_only(cs35l33->regmap, false);
1186
1187 /* initialize codec */
1188 devid = cirrus_read_device_id(cs35l33->regmap, CS35L33_DEVID_AB);
1189 if (devid < 0) {
1190 ret = devid;
1191 dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret);
1192 goto err_enable;
1193 }
1194
1195 if (devid != CS35L33_CHIP_ID) {
1196 dev_err(&i2c_client->dev,
1197 "CS35L33 Device ID (%X). Expected ID %X\n",
1198 devid, CS35L33_CHIP_ID);
1199 ret = -EINVAL;
1200 goto err_enable;
1201 }
1202
1203 ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®);
1204 if (ret < 0) {
1205 dev_err(&i2c_client->dev, "Get Revision ID failed\n");
1206 goto err_enable;
1207 }
1208
1209 dev_info(&i2c_client->dev,
1210 "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF);
1211
1212 ret = regmap_register_patch(cs35l33->regmap,
1213 cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
1214 if (ret < 0) {
1215 dev_err(&i2c_client->dev,
1216 "Error in applying regmap patch: %d\n", ret);
1217 goto err_enable;
1218 }
1219
1220 /* disable mclk and tdm */
1221 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
1222 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
1223 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);
1224
1225 pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
1226 pm_runtime_use_autosuspend(&i2c_client->dev);
1227 pm_runtime_set_active(&i2c_client->dev);
1228 pm_runtime_enable(&i2c_client->dev);
1229
1230 ret = devm_snd_soc_register_component(&i2c_client->dev,
1231 &soc_component_dev_cs35l33, &cs35l33_dai, 1);
1232 if (ret < 0) {
1233 dev_err(&i2c_client->dev, "%s: Register component failed\n",
1234 __func__);
1235 goto err_enable;
1236 }
1237
1238 return 0;
1239
1240err_enable:
1241 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
1242
1243 regulator_bulk_disable(cs35l33->num_core_supplies,
1244 cs35l33->core_supplies);
1245
1246 return ret;
1247}
1248
1249static void cs35l33_i2c_remove(struct i2c_client *client)
1250{
1251 struct cs35l33_private *cs35l33 = i2c_get_clientdata(client);
1252
1253 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
1254
1255 pm_runtime_disable(&client->dev);
1256 regulator_bulk_disable(cs35l33->num_core_supplies,
1257 cs35l33->core_supplies);
1258}
1259
1260static const struct of_device_id cs35l33_of_match[] = {
1261 { .compatible = "cirrus,cs35l33", },
1262 {},
1263};
1264MODULE_DEVICE_TABLE(of, cs35l33_of_match);
1265
1266static const struct i2c_device_id cs35l33_id[] = {
1267 {"cs35l33"},
1268 {}
1269};
1270
1271MODULE_DEVICE_TABLE(i2c, cs35l33_id);
1272
1273static struct i2c_driver cs35l33_i2c_driver = {
1274 .driver = {
1275 .name = "cs35l33",
1276 .pm = &cs35l33_pm_ops,
1277 .of_match_table = cs35l33_of_match,
1278
1279 },
1280 .id_table = cs35l33_id,
1281 .probe = cs35l33_i2c_probe,
1282 .remove = cs35l33_i2c_remove,
1283
1284};
1285module_i2c_driver(cs35l33_i2c_driver);
1286
1287MODULE_DESCRIPTION("ASoC CS35L33 driver");
1288MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>");
1289MODULE_LICENSE("GPL");
1/*
2 * cs35l33.c -- CS35L33 ALSA SoC audio driver
3 *
4 * Copyright 2016 Cirrus Logic, Inc.
5 *
6 * Author: Paul Handrigan <paul.handrigan@cirrus.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/delay.h>
18#include <linux/i2c.h>
19#include <linux/slab.h>
20#include <linux/workqueue.h>
21#include <linux/platform_device.h>
22#include <sound/core.h>
23#include <sound/pcm.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/soc-dapm.h>
27#include <sound/initval.h>
28#include <sound/tlv.h>
29#include <linux/gpio.h>
30#include <linux/gpio/consumer.h>
31#include <sound/cs35l33.h>
32#include <linux/pm_runtime.h>
33#include <linux/regulator/consumer.h>
34#include <linux/regulator/machine.h>
35#include <linux/of_gpio.h>
36#include <linux/of.h>
37#include <linux/of_device.h>
38#include <linux/of_irq.h>
39
40#include "cs35l33.h"
41
42#define CS35L33_BOOT_DELAY 50
43
44struct cs35l33_private {
45 struct snd_soc_codec *codec;
46 struct cs35l33_pdata pdata;
47 struct regmap *regmap;
48 struct gpio_desc *reset_gpio;
49 bool amp_cal;
50 int mclk_int;
51 struct regulator_bulk_data core_supplies[2];
52 int num_core_supplies;
53 bool is_tdm_mode;
54 bool enable_soft_ramp;
55};
56
57static const struct reg_default cs35l33_reg[] = {
58 {CS35L33_PWRCTL1, 0x85},
59 {CS35L33_PWRCTL2, 0xFE},
60 {CS35L33_CLK_CTL, 0x0C},
61 {CS35L33_BST_PEAK_CTL, 0x90},
62 {CS35L33_PROTECT_CTL, 0x55},
63 {CS35L33_BST_CTL1, 0x00},
64 {CS35L33_BST_CTL2, 0x01},
65 {CS35L33_ADSP_CTL, 0x00},
66 {CS35L33_ADC_CTL, 0xC8},
67 {CS35L33_DAC_CTL, 0x14},
68 {CS35L33_DIG_VOL_CTL, 0x00},
69 {CS35L33_CLASSD_CTL, 0x04},
70 {CS35L33_AMP_CTL, 0x90},
71 {CS35L33_INT_MASK_1, 0xFF},
72 {CS35L33_INT_MASK_2, 0xFF},
73 {CS35L33_DIAG_LOCK, 0x00},
74 {CS35L33_DIAG_CTRL_1, 0x40},
75 {CS35L33_DIAG_CTRL_2, 0x00},
76 {CS35L33_HG_MEMLDO_CTL, 0x62},
77 {CS35L33_HG_REL_RATE, 0x03},
78 {CS35L33_LDO_DEL, 0x12},
79 {CS35L33_HG_HEAD, 0x0A},
80 {CS35L33_HG_EN, 0x05},
81 {CS35L33_TX_VMON, 0x00},
82 {CS35L33_TX_IMON, 0x03},
83 {CS35L33_TX_VPMON, 0x02},
84 {CS35L33_TX_VBSTMON, 0x05},
85 {CS35L33_TX_FLAG, 0x06},
86 {CS35L33_TX_EN1, 0x00},
87 {CS35L33_TX_EN2, 0x00},
88 {CS35L33_TX_EN3, 0x00},
89 {CS35L33_TX_EN4, 0x00},
90 {CS35L33_RX_AUD, 0x40},
91 {CS35L33_RX_SPLY, 0x03},
92 {CS35L33_RX_ALIVE, 0x04},
93 {CS35L33_BST_CTL4, 0x63},
94};
95
96static const struct reg_sequence cs35l33_patch[] = {
97 { 0x00, 0x99, 0 },
98 { 0x59, 0x02, 0 },
99 { 0x52, 0x30, 0 },
100 { 0x39, 0x45, 0 },
101 { 0x57, 0x30, 0 },
102 { 0x2C, 0x68, 0 },
103 { 0x00, 0x00, 0 },
104};
105
106static bool cs35l33_volatile_register(struct device *dev, unsigned int reg)
107{
108 switch (reg) {
109 case CS35L33_DEVID_AB:
110 case CS35L33_DEVID_CD:
111 case CS35L33_DEVID_E:
112 case CS35L33_REV_ID:
113 case CS35L33_INT_STATUS_1:
114 case CS35L33_INT_STATUS_2:
115 case CS35L33_HG_STATUS:
116 return true;
117 default:
118 return false;
119 }
120}
121
122static bool cs35l33_writeable_register(struct device *dev, unsigned int reg)
123{
124 switch (reg) {
125 /* these are read only registers */
126 case CS35L33_DEVID_AB:
127 case CS35L33_DEVID_CD:
128 case CS35L33_DEVID_E:
129 case CS35L33_REV_ID:
130 case CS35L33_INT_STATUS_1:
131 case CS35L33_INT_STATUS_2:
132 case CS35L33_HG_STATUS:
133 return false;
134 default:
135 return true;
136 }
137}
138
139static bool cs35l33_readable_register(struct device *dev, unsigned int reg)
140{
141 switch (reg) {
142 case CS35L33_DEVID_AB:
143 case CS35L33_DEVID_CD:
144 case CS35L33_DEVID_E:
145 case CS35L33_REV_ID:
146 case CS35L33_PWRCTL1:
147 case CS35L33_PWRCTL2:
148 case CS35L33_CLK_CTL:
149 case CS35L33_BST_PEAK_CTL:
150 case CS35L33_PROTECT_CTL:
151 case CS35L33_BST_CTL1:
152 case CS35L33_BST_CTL2:
153 case CS35L33_ADSP_CTL:
154 case CS35L33_ADC_CTL:
155 case CS35L33_DAC_CTL:
156 case CS35L33_DIG_VOL_CTL:
157 case CS35L33_CLASSD_CTL:
158 case CS35L33_AMP_CTL:
159 case CS35L33_INT_MASK_1:
160 case CS35L33_INT_MASK_2:
161 case CS35L33_INT_STATUS_1:
162 case CS35L33_INT_STATUS_2:
163 case CS35L33_DIAG_LOCK:
164 case CS35L33_DIAG_CTRL_1:
165 case CS35L33_DIAG_CTRL_2:
166 case CS35L33_HG_MEMLDO_CTL:
167 case CS35L33_HG_REL_RATE:
168 case CS35L33_LDO_DEL:
169 case CS35L33_HG_HEAD:
170 case CS35L33_HG_EN:
171 case CS35L33_TX_VMON:
172 case CS35L33_TX_IMON:
173 case CS35L33_TX_VPMON:
174 case CS35L33_TX_VBSTMON:
175 case CS35L33_TX_FLAG:
176 case CS35L33_TX_EN1:
177 case CS35L33_TX_EN2:
178 case CS35L33_TX_EN3:
179 case CS35L33_TX_EN4:
180 case CS35L33_RX_AUD:
181 case CS35L33_RX_SPLY:
182 case CS35L33_RX_ALIVE:
183 case CS35L33_BST_CTL4:
184 return true;
185 default:
186 return false;
187 }
188}
189
190static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0);
191static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0);
192
193static const struct snd_kcontrol_new cs35l33_snd_controls[] = {
194
195 SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL,
196 4, 0x09, 0, classd_ctl_tlv),
197 SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL,
198 0, 0x34, 0xE4, dac_tlv),
199};
200
201static int cs35l33_spkrdrv_event(struct snd_soc_dapm_widget *w,
202 struct snd_kcontrol *kcontrol, int event)
203{
204 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
205 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
206
207 switch (event) {
208 case SND_SOC_DAPM_POST_PMU:
209 if (!priv->amp_cal) {
210 usleep_range(8000, 9000);
211 priv->amp_cal = true;
212 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
213 CS35L33_AMP_CAL, 0);
214 dev_dbg(codec->dev, "Amp calibration done\n");
215 }
216 dev_dbg(codec->dev, "Amp turned on\n");
217 break;
218 case SND_SOC_DAPM_POST_PMD:
219 dev_dbg(codec->dev, "Amp turned off\n");
220 break;
221 default:
222 dev_err(codec->dev, "Invalid event = 0x%x\n", event);
223 break;
224 }
225
226 return 0;
227}
228
229static int cs35l33_sdin_event(struct snd_soc_dapm_widget *w,
230 struct snd_kcontrol *kcontrol, int event)
231{
232 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
233 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
234 unsigned int val;
235
236 switch (event) {
237 case SND_SOC_DAPM_PRE_PMU:
238 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
239 CS35L33_PDN_BST, 0);
240 val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM;
241 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
242 CS35L33_PDN_TDM, val);
243 dev_dbg(codec->dev, "BST turned on\n");
244 break;
245 case SND_SOC_DAPM_POST_PMU:
246 dev_dbg(codec->dev, "SDIN turned on\n");
247 if (!priv->amp_cal) {
248 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
249 CS35L33_AMP_CAL, CS35L33_AMP_CAL);
250 dev_dbg(codec->dev, "Amp calibration started\n");
251 usleep_range(10000, 11000);
252 }
253 break;
254 case SND_SOC_DAPM_POST_PMD:
255 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
256 CS35L33_PDN_TDM, CS35L33_PDN_TDM);
257 usleep_range(4000, 4100);
258 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
259 CS35L33_PDN_BST, CS35L33_PDN_BST);
260 dev_dbg(codec->dev, "BST and SDIN turned off\n");
261 break;
262 default:
263 dev_err(codec->dev, "Invalid event = 0x%x\n", event);
264
265 }
266
267 return 0;
268}
269
270static int cs35l33_sdout_event(struct snd_soc_dapm_widget *w,
271 struct snd_kcontrol *kcontrol, int event)
272{
273 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
274 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
275 unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
276 unsigned int mask2 = CS35L33_SDOUT_3ST_TDM;
277 unsigned int val, val2;
278
279 switch (event) {
280 case SND_SOC_DAPM_PRE_PMU:
281 if (priv->is_tdm_mode) {
282 /* set sdout_3st_i2s and reset pdn_tdm */
283 val = CS35L33_SDOUT_3ST_I2S;
284 /* reset sdout_3st_tdm */
285 val2 = 0;
286 } else {
287 /* reset sdout_3st_i2s and set pdn_tdm */
288 val = CS35L33_PDN_TDM;
289 /* set sdout_3st_tdm */
290 val2 = CS35L33_SDOUT_3ST_TDM;
291 }
292 dev_dbg(codec->dev, "SDOUT turned on\n");
293 break;
294 case SND_SOC_DAPM_PRE_PMD:
295 val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
296 val2 = CS35L33_SDOUT_3ST_TDM;
297 dev_dbg(codec->dev, "SDOUT turned off\n");
298 break;
299 default:
300 dev_err(codec->dev, "Invalid event = 0x%x\n", event);
301 return 0;
302 }
303
304 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
305 mask, val);
306 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
307 mask2, val2);
308
309 return 0;
310}
311
312static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = {
313
314 SND_SOC_DAPM_OUTPUT("SPK"),
315 SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0,
316 cs35l33_spkrdrv_event,
317 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
318 SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2,
319 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU |
320 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
321
322 SND_SOC_DAPM_INPUT("MON"),
323
324 SND_SOC_DAPM_ADC("VMON", NULL,
325 CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1),
326 SND_SOC_DAPM_ADC("IMON", NULL,
327 CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1),
328 SND_SOC_DAPM_ADC("VPMON", NULL,
329 CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1),
330 SND_SOC_DAPM_ADC("VBSTMON", NULL,
331 CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1),
332
333 SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0,
334 cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU |
335 SND_SOC_DAPM_PRE_PMD),
336};
337
338static const struct snd_soc_dapm_route cs35l33_audio_map[] = {
339 {"SDIN", NULL, "CS35L33 Playback"},
340 {"SPKDRV", NULL, "SDIN"},
341 {"SPK", NULL, "SPKDRV"},
342
343 {"VMON", NULL, "MON"},
344 {"IMON", NULL, "MON"},
345
346 {"SDOUT", NULL, "VMON"},
347 {"SDOUT", NULL, "IMON"},
348 {"CS35L33 Capture", NULL, "SDOUT"},
349};
350
351static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = {
352 {"SPKDRV", NULL, "VPMON"},
353 {"VPMON", NULL, "CS35L33 Playback"},
354};
355
356static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = {
357 {"SDOUT", NULL, "VPMON"},
358 {"VPMON", NULL, "MON"},
359 {"SDOUT", NULL, "VBSTMON"},
360 {"VBSTMON", NULL, "MON"},
361};
362
363static int cs35l33_set_bias_level(struct snd_soc_codec *codec,
364 enum snd_soc_bias_level level)
365{
366 unsigned int val;
367 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
368
369 switch (level) {
370 case SND_SOC_BIAS_ON:
371 break;
372 case SND_SOC_BIAS_PREPARE:
373 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
374 CS35L33_PDN_ALL, 0);
375 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
376 CS35L33_MCLKDIS, 0);
377 break;
378 case SND_SOC_BIAS_STANDBY:
379 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
380 CS35L33_PDN_ALL, CS35L33_PDN_ALL);
381 regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val);
382 usleep_range(1000, 1100);
383 if (val & CS35L33_PDN_DONE)
384 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
385 CS35L33_MCLKDIS, CS35L33_MCLKDIS);
386 break;
387 case SND_SOC_BIAS_OFF:
388 break;
389 default:
390 return -EINVAL;
391 }
392
393 return 0;
394}
395
396struct cs35l33_mclk_div {
397 int mclk;
398 int srate;
399 u8 adsp_rate;
400 u8 int_fs_ratio;
401};
402
403static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = {
404 /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */
405 {5644800, 11025, 0x4, CS35L33_INT_FS_RATE},
406 {5644800, 22050, 0x8, CS35L33_INT_FS_RATE},
407 {5644800, 44100, 0xC, CS35L33_INT_FS_RATE},
408
409 {6000000, 8000, 0x1, 0},
410 {6000000, 11025, 0x2, 0},
411 {6000000, 11029, 0x3, 0},
412 {6000000, 12000, 0x4, 0},
413 {6000000, 16000, 0x5, 0},
414 {6000000, 22050, 0x6, 0},
415 {6000000, 22059, 0x7, 0},
416 {6000000, 24000, 0x8, 0},
417 {6000000, 32000, 0x9, 0},
418 {6000000, 44100, 0xA, 0},
419 {6000000, 44118, 0xB, 0},
420 {6000000, 48000, 0xC, 0},
421
422 {6144000, 8000, 0x1, CS35L33_INT_FS_RATE},
423 {6144000, 12000, 0x4, CS35L33_INT_FS_RATE},
424 {6144000, 16000, 0x5, CS35L33_INT_FS_RATE},
425 {6144000, 24000, 0x8, CS35L33_INT_FS_RATE},
426 {6144000, 32000, 0x9, CS35L33_INT_FS_RATE},
427 {6144000, 48000, 0xC, CS35L33_INT_FS_RATE},
428};
429
430static int cs35l33_get_mclk_coeff(int mclk, int srate)
431{
432 int i;
433
434 for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) {
435 if (cs35l33_mclk_coeffs[i].mclk == mclk &&
436 cs35l33_mclk_coeffs[i].srate == srate)
437 return i;
438 }
439 return -EINVAL;
440}
441
442static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
443{
444 struct snd_soc_codec *codec = codec_dai->codec;
445 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
446
447 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
448 case SND_SOC_DAIFMT_CBM_CFM:
449 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
450 CS35L33_MS_MASK, CS35L33_MS_MASK);
451 dev_dbg(codec->dev, "Audio port in master mode\n");
452 break;
453 case SND_SOC_DAIFMT_CBS_CFS:
454 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
455 CS35L33_MS_MASK, 0);
456 dev_dbg(codec->dev, "Audio port in slave mode\n");
457 break;
458 default:
459 return -EINVAL;
460 }
461
462 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
463 case SND_SOC_DAIFMT_DSP_A:
464 /*
465 * tdm mode in cs35l33 resembles dsp-a mode very
466 * closely, it is dsp-a with fsync shifted left by half bclk
467 */
468 priv->is_tdm_mode = true;
469 dev_dbg(codec->dev, "Audio port in TDM mode\n");
470 break;
471 case SND_SOC_DAIFMT_I2S:
472 priv->is_tdm_mode = false;
473 dev_dbg(codec->dev, "Audio port in I2S mode\n");
474 break;
475 default:
476 return -EINVAL;
477 }
478
479 return 0;
480}
481
482static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream,
483 struct snd_pcm_hw_params *params,
484 struct snd_soc_dai *dai)
485{
486 struct snd_soc_codec *codec = dai->codec;
487 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
488 int sample_size = params_width(params);
489 int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));
490
491 if (coeff < 0)
492 return coeff;
493
494 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
495 CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
496 cs35l33_mclk_coeffs[coeff].int_fs_ratio
497 | cs35l33_mclk_coeffs[coeff].adsp_rate);
498
499 if (priv->is_tdm_mode) {
500 sample_size = (sample_size / 8) - 1;
501 if (sample_size > 2)
502 sample_size = 2;
503 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
504 CS35L33_AUDIN_RX_DEPTH,
505 sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
506 }
507
508 dev_dbg(codec->dev, "sample rate=%d, bits per sample=%d\n",
509 params_rate(params), params_width(params));
510
511 return 0;
512}
513
514static const unsigned int cs35l33_src_rates[] = {
515 8000, 11025, 11029, 12000, 16000, 22050,
516 22059, 24000, 32000, 44100, 44118, 48000
517};
518
519static const struct snd_pcm_hw_constraint_list cs35l33_constraints = {
520 .count = ARRAY_SIZE(cs35l33_src_rates),
521 .list = cs35l33_src_rates,
522};
523
524static int cs35l33_pcm_startup(struct snd_pcm_substream *substream,
525 struct snd_soc_dai *dai)
526{
527 snd_pcm_hw_constraint_list(substream->runtime, 0,
528 SNDRV_PCM_HW_PARAM_RATE,
529 &cs35l33_constraints);
530 return 0;
531}
532
533static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate)
534{
535 struct snd_soc_codec *codec = dai->codec;
536 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
537
538 if (tristate) {
539 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
540 CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S);
541 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
542 CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM);
543 } else {
544 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
545 CS35L33_SDOUT_3ST_I2S, 0);
546 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
547 CS35L33_SDOUT_3ST_TDM, 0);
548 }
549
550 return 0;
551}
552
553static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
554 unsigned int rx_mask, int slots, int slot_width)
555{
556 struct snd_soc_codec *codec = dai->codec;
557 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
558 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
559 unsigned int reg, bit_pos, i;
560 int slot, slot_num;
561
562 if (slot_width != 8)
563 return -EINVAL;
564
565 /* scan rx_mask for aud slot */
566 slot = ffs(rx_mask) - 1;
567 if (slot >= 0) {
568 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
569 CS35L33_X_LOC, slot);
570 dev_dbg(codec->dev, "Audio starts from slots %d", slot);
571 }
572
573 /*
574 * scan tx_mask: vmon(2 slots); imon (2 slots);
575 * vpmon (1 slot) vbstmon (1 slot)
576 */
577 slot = ffs(tx_mask) - 1;
578 slot_num = 0;
579
580 for (i = 0; i < 2 ; i++) {
581 /* disable vpmon/vbstmon: enable later if set in tx_mask */
582 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i,
583 CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE
584 | CS35L33_X_LOC);
585 }
586
587 /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/
588 snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route,
589 ARRAY_SIZE(cs35l33_vp_vbst_mon_route));
590
591 while (slot >= 0) {
592 /* configure VMON_TX_LOC */
593 if (slot_num == 0) {
594 regmap_update_bits(priv->regmap, CS35L33_TX_VMON,
595 CS35L33_X_STATE | CS35L33_X_LOC, slot);
596 dev_dbg(codec->dev, "VMON enabled in slots %d-%d",
597 slot, slot + 1);
598 }
599
600 /* configure IMON_TX_LOC */
601 if (slot_num == 3) {
602 regmap_update_bits(priv->regmap, CS35L33_TX_IMON,
603 CS35L33_X_STATE | CS35L33_X_LOC, slot);
604 dev_dbg(codec->dev, "IMON enabled in slots %d-%d",
605 slot, slot + 1);
606 }
607
608 /* configure VPMON_TX_LOC */
609 if (slot_num == 4) {
610 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON,
611 CS35L33_X_STATE | CS35L33_X_LOC, slot);
612 snd_soc_dapm_add_routes(dapm,
613 &cs35l33_vp_vbst_mon_route[0], 2);
614 dev_dbg(codec->dev, "VPMON enabled in slots %d", slot);
615 }
616
617 /* configure VBSTMON_TX_LOC */
618 if (slot_num == 5) {
619 regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON,
620 CS35L33_X_STATE | CS35L33_X_LOC, slot);
621 snd_soc_dapm_add_routes(dapm,
622 &cs35l33_vp_vbst_mon_route[2], 2);
623 dev_dbg(codec->dev,
624 "VBSTMON enabled in slots %d", slot);
625 }
626
627 /* Enable the relevant tx slot */
628 reg = CS35L33_TX_EN4 - (slot/8);
629 bit_pos = slot - ((slot / 8) * (8));
630 regmap_update_bits(priv->regmap, reg,
631 1 << bit_pos, 1 << bit_pos);
632
633 tx_mask &= ~(1 << slot);
634 slot = ffs(tx_mask) - 1;
635 slot_num++;
636 }
637
638 return 0;
639}
640
641static int cs35l33_codec_set_sysclk(struct snd_soc_codec *codec,
642 int clk_id, int source, unsigned int freq, int dir)
643{
644 struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
645
646 switch (freq) {
647 case CS35L33_MCLK_5644:
648 case CS35L33_MCLK_6:
649 case CS35L33_MCLK_6144:
650 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
651 CS35L33_MCLKDIV2, 0);
652 cs35l33->mclk_int = freq;
653 break;
654 case CS35L33_MCLK_11289:
655 case CS35L33_MCLK_12:
656 case CS35L33_MCLK_12288:
657 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
658 CS35L33_MCLKDIV2, CS35L33_MCLKDIV2);
659 cs35l33->mclk_int = freq/2;
660 break;
661 default:
662 cs35l33->mclk_int = 0;
663 return -EINVAL;
664 }
665
666 dev_dbg(codec->dev, "external mclk freq=%d, internal mclk freq=%d\n",
667 freq, cs35l33->mclk_int);
668
669 return 0;
670}
671
672static const struct snd_soc_dai_ops cs35l33_ops = {
673 .startup = cs35l33_pcm_startup,
674 .set_tristate = cs35l33_set_tristate,
675 .set_fmt = cs35l33_set_dai_fmt,
676 .hw_params = cs35l33_pcm_hw_params,
677 .set_tdm_slot = cs35l33_set_tdm_slot,
678};
679
680static struct snd_soc_dai_driver cs35l33_dai = {
681 .name = "cs35l33-dai",
682 .id = 0,
683 .playback = {
684 .stream_name = "CS35L33 Playback",
685 .channels_min = 1,
686 .channels_max = 1,
687 .rates = CS35L33_RATES,
688 .formats = CS35L33_FORMATS,
689 },
690 .capture = {
691 .stream_name = "CS35L33 Capture",
692 .channels_min = 2,
693 .channels_max = 2,
694 .rates = CS35L33_RATES,
695 .formats = CS35L33_FORMATS,
696 },
697 .ops = &cs35l33_ops,
698 .symmetric_rates = 1,
699};
700
701static int cs35l33_set_hg_data(struct snd_soc_codec *codec,
702 struct cs35l33_pdata *pdata)
703{
704 struct cs35l33_hg *hg_config = &pdata->hg_config;
705 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
706 struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
707
708 if (hg_config->enable_hg_algo) {
709 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
710 CS35L33_MEM_DEPTH_MASK,
711 hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT);
712 regmap_write(priv->regmap, CS35L33_HG_REL_RATE,
713 hg_config->release_rate);
714 regmap_update_bits(priv->regmap, CS35L33_HG_HEAD,
715 CS35L33_HD_RM_MASK,
716 hg_config->hd_rm << CS35L33_HD_RM_SHIFT);
717 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
718 CS35L33_LDO_THLD_MASK,
719 hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT);
720 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
721 CS35L33_LDO_DISABLE_MASK,
722 hg_config->ldo_path_disable <<
723 CS35L33_LDO_DISABLE_SHIFT);
724 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
725 CS35L33_LDO_ENTRY_DELAY_MASK,
726 hg_config->ldo_entry_delay <<
727 CS35L33_LDO_ENTRY_DELAY_SHIFT);
728 if (hg_config->vp_hg_auto) {
729 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
730 CS35L33_VP_HG_AUTO_MASK,
731 CS35L33_VP_HG_AUTO_MASK);
732 snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route,
733 ARRAY_SIZE(cs35l33_vphg_auto_route));
734 }
735 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
736 CS35L33_VP_HG_MASK,
737 hg_config->vp_hg << CS35L33_VP_HG_SHIFT);
738 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
739 CS35L33_VP_HG_RATE_MASK,
740 hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT);
741 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
742 CS35L33_VP_HG_VA_MASK,
743 hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT);
744 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
745 CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK);
746 }
747 return 0;
748}
749
750static int cs35l33_set_bst_ipk(struct snd_soc_codec *codec, unsigned int bst)
751{
752 struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
753 int ret = 0, steps = 0;
754
755 /* Boost current in uA */
756 if (bst > 3600000 || bst < 1850000) {
757 dev_err(codec->dev, "Invalid boost current %d\n", bst);
758 ret = -EINVAL;
759 goto err;
760 }
761
762 if (bst % 15625) {
763 dev_err(codec->dev, "Current not a multiple of 15625uA (%d)\n",
764 bst);
765 ret = -EINVAL;
766 goto err;
767 }
768
769 while (bst > 1850000) {
770 bst -= 15625;
771 steps++;
772 }
773
774 regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL,
775 steps+0x70);
776
777err:
778 return ret;
779}
780
781static int cs35l33_probe(struct snd_soc_codec *codec)
782{
783 struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
784
785 cs35l33->codec = codec;
786 pm_runtime_get_sync(codec->dev);
787
788 regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL,
789 CS35L33_ALIVE_WD_DIS, 0x8);
790 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2,
791 CS35L33_ALIVE_WD_DIS2,
792 CS35L33_ALIVE_WD_DIS2);
793
794 /* Set Platform Data */
795 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1,
796 CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl);
797 regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL,
798 CS35L33_AMP_DRV_SEL_MASK,
799 cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT);
800
801 if (cs35l33->pdata.boost_ipk)
802 cs35l33_set_bst_ipk(codec, cs35l33->pdata.boost_ipk);
803
804 if (cs35l33->enable_soft_ramp) {
805 snd_soc_update_bits(codec, CS35L33_DAC_CTL,
806 CS35L33_DIGSFT, CS35L33_DIGSFT);
807 snd_soc_update_bits(codec, CS35L33_DAC_CTL,
808 CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate);
809 } else {
810 snd_soc_update_bits(codec, CS35L33_DAC_CTL,
811 CS35L33_DIGSFT, 0);
812 }
813
814 /* update IMON scaling rate if different from default of 0x8 */
815 if (cs35l33->pdata.imon_adc_scale != 0x8)
816 snd_soc_update_bits(codec, CS35L33_ADC_CTL,
817 CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale);
818
819 cs35l33_set_hg_data(codec, &(cs35l33->pdata));
820
821 /*
822 * unmask important interrupts that causes the chip to enter
823 * speaker safe mode and hence deserves user attention
824 */
825 regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1,
826 CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT |
827 CS35L33_M_CAL_ERR, 0);
828
829 pm_runtime_put_sync(codec->dev);
830
831 return 0;
832}
833
834static struct snd_soc_codec_driver soc_codec_dev_cs35l33 = {
835 .probe = cs35l33_probe,
836
837 .set_bias_level = cs35l33_set_bias_level,
838 .set_sysclk = cs35l33_codec_set_sysclk,
839
840 .component_driver = {
841 .controls = cs35l33_snd_controls,
842 .num_controls = ARRAY_SIZE(cs35l33_snd_controls),
843 .dapm_widgets = cs35l33_dapm_widgets,
844 .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets),
845 .dapm_routes = cs35l33_audio_map,
846 .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map),
847 },
848 .idle_bias_off = true,
849};
850
851static const struct regmap_config cs35l33_regmap = {
852 .reg_bits = 8,
853 .val_bits = 8,
854
855 .max_register = CS35L33_MAX_REGISTER,
856 .reg_defaults = cs35l33_reg,
857 .num_reg_defaults = ARRAY_SIZE(cs35l33_reg),
858 .volatile_reg = cs35l33_volatile_register,
859 .readable_reg = cs35l33_readable_register,
860 .writeable_reg = cs35l33_writeable_register,
861 .cache_type = REGCACHE_RBTREE,
862 .use_single_rw = true,
863};
864
865static int __maybe_unused cs35l33_runtime_resume(struct device *dev)
866{
867 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
868 int ret;
869
870 dev_dbg(dev, "%s\n", __func__);
871
872 if (cs35l33->reset_gpio)
873 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
874
875 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
876 cs35l33->core_supplies);
877 if (ret != 0) {
878 dev_err(dev, "Failed to enable core supplies: %d\n", ret);
879 return ret;
880 }
881
882 regcache_cache_only(cs35l33->regmap, false);
883
884 if (cs35l33->reset_gpio)
885 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
886
887 msleep(CS35L33_BOOT_DELAY);
888
889 ret = regcache_sync(cs35l33->regmap);
890 if (ret != 0) {
891 dev_err(dev, "Failed to restore register cache\n");
892 goto err;
893 }
894
895 return 0;
896
897err:
898 regcache_cache_only(cs35l33->regmap, true);
899 regulator_bulk_disable(cs35l33->num_core_supplies,
900 cs35l33->core_supplies);
901
902 return ret;
903}
904
905static int __maybe_unused cs35l33_runtime_suspend(struct device *dev)
906{
907 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
908
909 dev_dbg(dev, "%s\n", __func__);
910
911 /* redo the calibration in next power up */
912 cs35l33->amp_cal = false;
913
914 regcache_cache_only(cs35l33->regmap, true);
915 regcache_mark_dirty(cs35l33->regmap);
916 regulator_bulk_disable(cs35l33->num_core_supplies,
917 cs35l33->core_supplies);
918
919 return 0;
920}
921
922static const struct dev_pm_ops cs35l33_pm_ops = {
923 SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend,
924 cs35l33_runtime_resume,
925 NULL)
926};
927
928static int cs35l33_get_hg_data(const struct device_node *np,
929 struct cs35l33_pdata *pdata)
930{
931 struct device_node *hg;
932 struct cs35l33_hg *hg_config = &pdata->hg_config;
933 u32 val32;
934
935 hg = of_get_child_by_name(np, "cirrus,hg-algo");
936 hg_config->enable_hg_algo = hg ? true : false;
937
938 if (hg_config->enable_hg_algo) {
939 if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0)
940 hg_config->mem_depth = val32;
941 if (of_property_read_u32(hg, "cirrus,release-rate",
942 &val32) >= 0)
943 hg_config->release_rate = val32;
944 if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0)
945 hg_config->ldo_thld = val32;
946 if (of_property_read_u32(hg, "cirrus,ldo-path-disable",
947 &val32) >= 0)
948 hg_config->ldo_path_disable = val32;
949 if (of_property_read_u32(hg, "cirrus,ldo-entry-delay",
950 &val32) >= 0)
951 hg_config->ldo_entry_delay = val32;
952
953 hg_config->vp_hg_auto = of_property_read_bool(hg,
954 "cirrus,vp-hg-auto");
955
956 if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0)
957 hg_config->vp_hg = val32;
958 if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0)
959 hg_config->vp_hg_rate = val32;
960 if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0)
961 hg_config->vp_hg_va = val32;
962 }
963
964 of_node_put(hg);
965
966 return 0;
967}
968
969static irqreturn_t cs35l33_irq_thread(int irq, void *data)
970{
971 struct cs35l33_private *cs35l33 = data;
972 struct snd_soc_codec *codec = cs35l33->codec;
973 unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2;
974
975 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2,
976 &sticky_val2);
977 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
978 &sticky_val1);
979 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2);
980 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1);
981
982 /* Check to see if the unmasked bits are active,
983 * if not then exit.
984 */
985 if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2))
986 return IRQ_NONE;
987
988 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
989 ¤t_val);
990
991 /* handle the interrupts */
992
993 if (sticky_val1 & CS35L33_AMP_SHORT) {
994 dev_crit(codec->dev, "Amp short error\n");
995 if (!(current_val & CS35L33_AMP_SHORT)) {
996 dev_dbg(codec->dev,
997 "Amp short error release\n");
998 regmap_update_bits(cs35l33->regmap,
999 CS35L33_AMP_CTL,
1000 CS35L33_AMP_SHORT_RLS, 0);
1001 regmap_update_bits(cs35l33->regmap,
1002 CS35L33_AMP_CTL,
1003 CS35L33_AMP_SHORT_RLS,
1004 CS35L33_AMP_SHORT_RLS);
1005 regmap_update_bits(cs35l33->regmap,
1006 CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS,
1007 0);
1008 }
1009 }
1010
1011 if (sticky_val1 & CS35L33_CAL_ERR) {
1012 dev_err(codec->dev, "Cal error\n");
1013
1014 /* redo the calibration in next power up */
1015 cs35l33->amp_cal = false;
1016
1017 if (!(current_val & CS35L33_CAL_ERR)) {
1018 dev_dbg(codec->dev, "Cal error release\n");
1019 regmap_update_bits(cs35l33->regmap,
1020 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1021 0);
1022 regmap_update_bits(cs35l33->regmap,
1023 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1024 CS35L33_CAL_ERR_RLS);
1025 regmap_update_bits(cs35l33->regmap,
1026 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1027 0);
1028 }
1029 }
1030
1031 if (sticky_val1 & CS35L33_OTE) {
1032 dev_crit(codec->dev, "Over temperature error\n");
1033 if (!(current_val & CS35L33_OTE)) {
1034 dev_dbg(codec->dev,
1035 "Over temperature error release\n");
1036 regmap_update_bits(cs35l33->regmap,
1037 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1038 regmap_update_bits(cs35l33->regmap,
1039 CS35L33_AMP_CTL, CS35L33_OTE_RLS,
1040 CS35L33_OTE_RLS);
1041 regmap_update_bits(cs35l33->regmap,
1042 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1043 }
1044 }
1045
1046 if (sticky_val1 & CS35L33_OTW) {
1047 dev_err(codec->dev, "Over temperature warning\n");
1048 if (!(current_val & CS35L33_OTW)) {
1049 dev_dbg(codec->dev,
1050 "Over temperature warning release\n");
1051 regmap_update_bits(cs35l33->regmap,
1052 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1053 regmap_update_bits(cs35l33->regmap,
1054 CS35L33_AMP_CTL, CS35L33_OTW_RLS,
1055 CS35L33_OTW_RLS);
1056 regmap_update_bits(cs35l33->regmap,
1057 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1058 }
1059 }
1060 if (CS35L33_ALIVE_ERR & sticky_val1)
1061 dev_err(codec->dev, "ERROR: ADSPCLK Interrupt\n");
1062
1063 if (CS35L33_MCLK_ERR & sticky_val1)
1064 dev_err(codec->dev, "ERROR: MCLK Interrupt\n");
1065
1066 if (CS35L33_VMON_OVFL & sticky_val2)
1067 dev_err(codec->dev,
1068 "ERROR: VMON Overflow Interrupt\n");
1069
1070 if (CS35L33_IMON_OVFL & sticky_val2)
1071 dev_err(codec->dev,
1072 "ERROR: IMON Overflow Interrupt\n");
1073
1074 if (CS35L33_VPMON_OVFL & sticky_val2)
1075 dev_err(codec->dev,
1076 "ERROR: VPMON Overflow Interrupt\n");
1077
1078 return IRQ_HANDLED;
1079}
1080
1081static const char * const cs35l33_core_supplies[] = {
1082 "VA",
1083 "VP",
1084};
1085
1086static int cs35l33_of_get_pdata(struct device *dev,
1087 struct cs35l33_private *cs35l33)
1088{
1089 struct device_node *np = dev->of_node;
1090 struct cs35l33_pdata *pdata = &cs35l33->pdata;
1091 u32 val32;
1092
1093 if (!np)
1094 return 0;
1095
1096 if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) {
1097 pdata->boost_ctl = val32;
1098 pdata->amp_drv_sel = 1;
1099 }
1100
1101 if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) {
1102 pdata->ramp_rate = val32;
1103 cs35l33->enable_soft_ramp = true;
1104 }
1105
1106 if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0)
1107 pdata->boost_ipk = val32;
1108
1109 if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) {
1110 if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6))
1111 pdata->imon_adc_scale = val32;
1112 else
1113 /* use default value */
1114 pdata->imon_adc_scale = 0x8;
1115 } else {
1116 /* use default value */
1117 pdata->imon_adc_scale = 0x8;
1118 }
1119
1120 cs35l33_get_hg_data(np, pdata);
1121
1122 return 0;
1123}
1124
1125static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
1126 const struct i2c_device_id *id)
1127{
1128 struct cs35l33_private *cs35l33;
1129 struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
1130 int ret, devid, i;
1131 unsigned int reg;
1132
1133 cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
1134 GFP_KERNEL);
1135 if (!cs35l33)
1136 return -ENOMEM;
1137
1138 i2c_set_clientdata(i2c_client, cs35l33);
1139 cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
1140 if (IS_ERR(cs35l33->regmap)) {
1141 ret = PTR_ERR(cs35l33->regmap);
1142 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1143 return ret;
1144 }
1145
1146 regcache_cache_only(cs35l33->regmap, true);
1147
1148 for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
1149 cs35l33->core_supplies[i].supply
1150 = cs35l33_core_supplies[i];
1151 cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);
1152
1153 ret = devm_regulator_bulk_get(&i2c_client->dev,
1154 cs35l33->num_core_supplies,
1155 cs35l33->core_supplies);
1156 if (ret != 0) {
1157 dev_err(&i2c_client->dev,
1158 "Failed to request core supplies: %d\n",
1159 ret);
1160 return ret;
1161 }
1162
1163 if (pdata) {
1164 cs35l33->pdata = *pdata;
1165 } else {
1166 cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
1167 pdata = &cs35l33->pdata;
1168 }
1169
1170 ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
1171 cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
1172 "cs35l33", cs35l33);
1173 if (ret != 0)
1174 dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);
1175
1176 /* We could issue !RST or skip it based on AMP topology */
1177 cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
1178 "reset-gpios", GPIOD_OUT_HIGH);
1179 if (IS_ERR(cs35l33->reset_gpio)) {
1180 dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
1181 __func__);
1182 return PTR_ERR(cs35l33->reset_gpio);
1183 }
1184
1185 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
1186 cs35l33->core_supplies);
1187 if (ret != 0) {
1188 dev_err(&i2c_client->dev,
1189 "Failed to enable core supplies: %d\n",
1190 ret);
1191 return ret;
1192 }
1193
1194 if (cs35l33->reset_gpio)
1195 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
1196
1197 msleep(CS35L33_BOOT_DELAY);
1198 regcache_cache_only(cs35l33->regmap, false);
1199
1200 /* initialize codec */
1201 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, ®);
1202 devid = (reg & 0xFF) << 12;
1203 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, ®);
1204 devid |= (reg & 0xFF) << 4;
1205 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, ®);
1206 devid |= (reg & 0xF0) >> 4;
1207
1208 if (devid != CS35L33_CHIP_ID) {
1209 dev_err(&i2c_client->dev,
1210 "CS35L33 Device ID (%X). Expected ID %X\n",
1211 devid, CS35L33_CHIP_ID);
1212 goto err_enable;
1213 }
1214
1215 ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®);
1216 if (ret < 0) {
1217 dev_err(&i2c_client->dev, "Get Revision ID failed\n");
1218 goto err_enable;
1219 }
1220
1221 dev_info(&i2c_client->dev,
1222 "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF);
1223
1224 ret = regmap_register_patch(cs35l33->regmap,
1225 cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
1226 if (ret < 0) {
1227 dev_err(&i2c_client->dev,
1228 "Error in applying regmap patch: %d\n", ret);
1229 goto err_enable;
1230 }
1231
1232 /* disable mclk and tdm */
1233 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
1234 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
1235 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);
1236
1237 pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
1238 pm_runtime_use_autosuspend(&i2c_client->dev);
1239 pm_runtime_set_active(&i2c_client->dev);
1240 pm_runtime_enable(&i2c_client->dev);
1241
1242 ret = snd_soc_register_codec(&i2c_client->dev,
1243 &soc_codec_dev_cs35l33, &cs35l33_dai, 1);
1244 if (ret < 0) {
1245 dev_err(&i2c_client->dev, "%s: Register codec failed\n",
1246 __func__);
1247 goto err_enable;
1248 }
1249
1250 return 0;
1251
1252err_enable:
1253 regulator_bulk_disable(cs35l33->num_core_supplies,
1254 cs35l33->core_supplies);
1255
1256 return ret;
1257}
1258
1259static int cs35l33_i2c_remove(struct i2c_client *client)
1260{
1261 struct cs35l33_private *cs35l33 = i2c_get_clientdata(client);
1262
1263 snd_soc_unregister_codec(&client->dev);
1264
1265 if (cs35l33->reset_gpio)
1266 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
1267
1268 pm_runtime_disable(&client->dev);
1269 regulator_bulk_disable(cs35l33->num_core_supplies,
1270 cs35l33->core_supplies);
1271
1272 return 0;
1273}
1274
1275static const struct of_device_id cs35l33_of_match[] = {
1276 { .compatible = "cirrus,cs35l33", },
1277 {},
1278};
1279MODULE_DEVICE_TABLE(of, cs35l33_of_match);
1280
1281static const struct i2c_device_id cs35l33_id[] = {
1282 {"cs35l33", 0},
1283 {}
1284};
1285
1286MODULE_DEVICE_TABLE(i2c, cs35l33_id);
1287
1288static struct i2c_driver cs35l33_i2c_driver = {
1289 .driver = {
1290 .name = "cs35l33",
1291 .pm = &cs35l33_pm_ops,
1292 .of_match_table = cs35l33_of_match,
1293
1294 },
1295 .id_table = cs35l33_id,
1296 .probe = cs35l33_i2c_probe,
1297 .remove = cs35l33_i2c_remove,
1298
1299};
1300module_i2c_driver(cs35l33_i2c_driver);
1301
1302MODULE_DESCRIPTION("ASoC CS35L33 driver");
1303MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>");
1304MODULE_LICENSE("GPL");