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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / sound / soc / codecs / cs35l33.c
blob6042194d95d3ec9dee14ecbc032bb945b4b8766b
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.h>
26 #include <linux/gpio/consumer.h>
27 #include <sound/cs35l33.h>
28 #include <linux/pm_runtime.h>
29 #include <linux/regulator/consumer.h>
30 #include <linux/regulator/machine.h>
31 #include <linux/of_gpio.h>
32 #include <linux/of.h>
33 #include <linux/of_device.h>
34 #include <linux/of_irq.h>
35
36 #include "cs35l33.h"
37
38 #define CS35L33_BOOT_DELAY 50
39
40 struct cs35l33_private {
41 struct snd_soc_component *component;
42 struct cs35l33_pdata pdata;
43 struct regmap *regmap;
44 struct gpio_desc *reset_gpio;
45 bool amp_cal;
46 int mclk_int;
47 struct regulator_bulk_data core_supplies[2];
48 int num_core_supplies;
49 bool is_tdm_mode;
50 bool enable_soft_ramp;
51 };
52
53 static const struct reg_default cs35l33_reg[] = {
54 {CS35L33_PWRCTL1, 0x85},
55 {CS35L33_PWRCTL2, 0xFE},
56 {CS35L33_CLK_CTL, 0x0C},
57 {CS35L33_BST_PEAK_CTL, 0x90},
58 {CS35L33_PROTECT_CTL, 0x55},
59 {CS35L33_BST_CTL1, 0x00},
60 {CS35L33_BST_CTL2, 0x01},
61 {CS35L33_ADSP_CTL, 0x00},
62 {CS35L33_ADC_CTL, 0xC8},
63 {CS35L33_DAC_CTL, 0x14},
64 {CS35L33_DIG_VOL_CTL, 0x00},
65 {CS35L33_CLASSD_CTL, 0x04},
66 {CS35L33_AMP_CTL, 0x90},
67 {CS35L33_INT_MASK_1, 0xFF},
68 {CS35L33_INT_MASK_2, 0xFF},
69 {CS35L33_DIAG_LOCK, 0x00},
70 {CS35L33_DIAG_CTRL_1, 0x40},
71 {CS35L33_DIAG_CTRL_2, 0x00},
72 {CS35L33_HG_MEMLDO_CTL, 0x62},
73 {CS35L33_HG_REL_RATE, 0x03},
74 {CS35L33_LDO_DEL, 0x12},
75 {CS35L33_HG_HEAD, 0x0A},
76 {CS35L33_HG_EN, 0x05},
77 {CS35L33_TX_VMON, 0x00},
78 {CS35L33_TX_IMON, 0x03},
79 {CS35L33_TX_VPMON, 0x02},
80 {CS35L33_TX_VBSTMON, 0x05},
81 {CS35L33_TX_FLAG, 0x06},
82 {CS35L33_TX_EN1, 0x00},
83 {CS35L33_TX_EN2, 0x00},
84 {CS35L33_TX_EN3, 0x00},
85 {CS35L33_TX_EN4, 0x00},
86 {CS35L33_RX_AUD, 0x40},
87 {CS35L33_RX_SPLY, 0x03},
88 {CS35L33_RX_ALIVE, 0x04},
89 {CS35L33_BST_CTL4, 0x63},
90 };
91
92 static const struct reg_sequence cs35l33_patch[] = {
93 { 0x00, 0x99, 0 },
94 { 0x59, 0x02, 0 },
95 { 0x52, 0x30, 0 },
96 { 0x39, 0x45, 0 },
97 { 0x57, 0x30, 0 },
98 { 0x2C, 0x68, 0 },
99 { 0x00, 0x00, 0 },
100 };
101
102 static bool cs35l33_volatile_register(struct device *dev, unsigned int reg)
103 {
104 switch (reg) {
105 case CS35L33_DEVID_AB:
106 case CS35L33_DEVID_CD:
107 case CS35L33_DEVID_E:
108 case CS35L33_REV_ID:
109 case CS35L33_INT_STATUS_1:
110 case CS35L33_INT_STATUS_2:
111 case CS35L33_HG_STATUS:
112 return true;
113 default:
114 return false;
115 }
116 }
117
118 static bool cs35l33_writeable_register(struct device *dev, unsigned int reg)
119 {
120 switch (reg) {
121 /* these are read only registers */
122 case CS35L33_DEVID_AB:
123 case CS35L33_DEVID_CD:
124 case CS35L33_DEVID_E:
125 case CS35L33_REV_ID:
126 case CS35L33_INT_STATUS_1:
127 case CS35L33_INT_STATUS_2:
128 case CS35L33_HG_STATUS:
129 return false;
130 default:
131 return true;
132 }
133 }
134
135 static bool cs35l33_readable_register(struct device *dev, unsigned int reg)
136 {
137 switch (reg) {
138 case CS35L33_DEVID_AB:
139 case CS35L33_DEVID_CD:
140 case CS35L33_DEVID_E:
141 case CS35L33_REV_ID:
142 case CS35L33_PWRCTL1:
143 case CS35L33_PWRCTL2:
144 case CS35L33_CLK_CTL:
145 case CS35L33_BST_PEAK_CTL:
146 case CS35L33_PROTECT_CTL:
147 case CS35L33_BST_CTL1:
148 case CS35L33_BST_CTL2:
149 case CS35L33_ADSP_CTL:
150 case CS35L33_ADC_CTL:
151 case CS35L33_DAC_CTL:
152 case CS35L33_DIG_VOL_CTL:
153 case CS35L33_CLASSD_CTL:
154 case CS35L33_AMP_CTL:
155 case CS35L33_INT_MASK_1:
156 case CS35L33_INT_MASK_2:
157 case CS35L33_INT_STATUS_1:
158 case CS35L33_INT_STATUS_2:
159 case CS35L33_DIAG_LOCK:
160 case CS35L33_DIAG_CTRL_1:
161 case CS35L33_DIAG_CTRL_2:
162 case CS35L33_HG_MEMLDO_CTL:
163 case CS35L33_HG_REL_RATE:
164 case CS35L33_LDO_DEL:
165 case CS35L33_HG_HEAD:
166 case CS35L33_HG_EN:
167 case CS35L33_TX_VMON:
168 case CS35L33_TX_IMON:
169 case CS35L33_TX_VPMON:
170 case CS35L33_TX_VBSTMON:
171 case CS35L33_TX_FLAG:
172 case CS35L33_TX_EN1:
173 case CS35L33_TX_EN2:
174 case CS35L33_TX_EN3:
175 case CS35L33_TX_EN4:
176 case CS35L33_RX_AUD:
177 case CS35L33_RX_SPLY:
178 case CS35L33_RX_ALIVE:
179 case CS35L33_BST_CTL4:
180 return true;
181 default:
182 return false;
183 }
184 }
185
186 static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0);
187 static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0);
188
189 static const struct snd_kcontrol_new cs35l33_snd_controls[] = {
190
191 SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL,
192 4, 0x09, 0, classd_ctl_tlv),
193 SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL,
194 0, 0x34, 0xE4, dac_tlv),
195 };
196
197 static int cs35l33_spkrdrv_event(struct snd_soc_dapm_widget *w,
198 struct snd_kcontrol *kcontrol, int event)
199 {
200 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
201 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
202
203 switch (event) {
204 case SND_SOC_DAPM_POST_PMU:
205 if (!priv->amp_cal) {
206 usleep_range(8000, 9000);
207 priv->amp_cal = true;
208 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
209 CS35L33_AMP_CAL, 0);
210 dev_dbg(component->dev, "Amp calibration done\n");
211 }
212 dev_dbg(component->dev, "Amp turned on\n");
213 break;
214 case SND_SOC_DAPM_POST_PMD:
215 dev_dbg(component->dev, "Amp turned off\n");
216 break;
217 default:
218 dev_err(component->dev, "Invalid event = 0x%x\n", event);
219 break;
220 }
221
222 return 0;
223 }
224
225 static int cs35l33_sdin_event(struct snd_soc_dapm_widget *w,
226 struct snd_kcontrol *kcontrol, int event)
227 {
228 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
229 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
230 unsigned int val;
231
232 switch (event) {
233 case SND_SOC_DAPM_PRE_PMU:
234 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
235 CS35L33_PDN_BST, 0);
236 val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM;
237 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
238 CS35L33_PDN_TDM, val);
239 dev_dbg(component->dev, "BST turned on\n");
240 break;
241 case SND_SOC_DAPM_POST_PMU:
242 dev_dbg(component->dev, "SDIN turned on\n");
243 if (!priv->amp_cal) {
244 regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
245 CS35L33_AMP_CAL, CS35L33_AMP_CAL);
246 dev_dbg(component->dev, "Amp calibration started\n");
247 usleep_range(10000, 11000);
248 }
249 break;
250 case SND_SOC_DAPM_POST_PMD:
251 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
252 CS35L33_PDN_TDM, CS35L33_PDN_TDM);
253 usleep_range(4000, 4100);
254 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
255 CS35L33_PDN_BST, CS35L33_PDN_BST);
256 dev_dbg(component->dev, "BST and SDIN turned off\n");
257 break;
258 default:
259 dev_err(component->dev, "Invalid event = 0x%x\n", event);
260
261 }
262
263 return 0;
264 }
265
266 static int cs35l33_sdout_event(struct snd_soc_dapm_widget *w,
267 struct snd_kcontrol *kcontrol, int event)
268 {
269 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
270 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
271 unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
272 unsigned int mask2 = CS35L33_SDOUT_3ST_TDM;
273 unsigned int val, val2;
274
275 switch (event) {
276 case SND_SOC_DAPM_PRE_PMU:
277 if (priv->is_tdm_mode) {
278 /* set sdout_3st_i2s and reset pdn_tdm */
279 val = CS35L33_SDOUT_3ST_I2S;
280 /* reset sdout_3st_tdm */
281 val2 = 0;
282 } else {
283 /* reset sdout_3st_i2s and set pdn_tdm */
284 val = CS35L33_PDN_TDM;
285 /* set sdout_3st_tdm */
286 val2 = CS35L33_SDOUT_3ST_TDM;
287 }
288 dev_dbg(component->dev, "SDOUT turned on\n");
289 break;
290 case SND_SOC_DAPM_PRE_PMD:
291 val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
292 val2 = CS35L33_SDOUT_3ST_TDM;
293 dev_dbg(component->dev, "SDOUT turned off\n");
294 break;
295 default:
296 dev_err(component->dev, "Invalid event = 0x%x\n", event);
297 return 0;
298 }
299
300 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
301 mask, val);
302 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
303 mask2, val2);
304
305 return 0;
306 }
307
308 static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = {
309
310 SND_SOC_DAPM_OUTPUT("SPK"),
311 SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0,
312 cs35l33_spkrdrv_event,
313 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
314 SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2,
315 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU |
316 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
317
318 SND_SOC_DAPM_INPUT("MON"),
319
320 SND_SOC_DAPM_ADC("VMON", NULL,
321 CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1),
322 SND_SOC_DAPM_ADC("IMON", NULL,
323 CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1),
324 SND_SOC_DAPM_ADC("VPMON", NULL,
325 CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1),
326 SND_SOC_DAPM_ADC("VBSTMON", NULL,
327 CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1),
328
329 SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0,
330 cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU |
331 SND_SOC_DAPM_PRE_PMD),
332 };
333
334 static const struct snd_soc_dapm_route cs35l33_audio_map[] = {
335 {"SDIN", NULL, "CS35L33 Playback"},
336 {"SPKDRV", NULL, "SDIN"},
337 {"SPK", NULL, "SPKDRV"},
338
339 {"VMON", NULL, "MON"},
340 {"IMON", NULL, "MON"},
341
342 {"SDOUT", NULL, "VMON"},
343 {"SDOUT", NULL, "IMON"},
344 {"CS35L33 Capture", NULL, "SDOUT"},
345 };
346
347 static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = {
348 {"SPKDRV", NULL, "VPMON"},
349 {"VPMON", NULL, "CS35L33 Playback"},
350 };
351
352 static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = {
353 {"SDOUT", NULL, "VPMON"},
354 {"VPMON", NULL, "MON"},
355 {"SDOUT", NULL, "VBSTMON"},
356 {"VBSTMON", NULL, "MON"},
357 };
358
359 static int cs35l33_set_bias_level(struct snd_soc_component *component,
360 enum snd_soc_bias_level level)
361 {
362 unsigned int val;
363 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
364
365 switch (level) {
366 case SND_SOC_BIAS_ON:
367 break;
368 case SND_SOC_BIAS_PREPARE:
369 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
370 CS35L33_PDN_ALL, 0);
371 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
372 CS35L33_MCLKDIS, 0);
373 break;
374 case SND_SOC_BIAS_STANDBY:
375 regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
376 CS35L33_PDN_ALL, CS35L33_PDN_ALL);
377 regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val);
378 usleep_range(1000, 1100);
379 if (val & CS35L33_PDN_DONE)
380 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
381 CS35L33_MCLKDIS, CS35L33_MCLKDIS);
382 break;
383 case SND_SOC_BIAS_OFF:
384 break;
385 default:
386 return -EINVAL;
387 }
388
389 return 0;
390 }
391
392 struct cs35l33_mclk_div {
393 int mclk;
394 int srate;
395 u8 adsp_rate;
396 u8 int_fs_ratio;
397 };
398
399 static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = {
400 /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */
401 {5644800, 11025, 0x4, CS35L33_INT_FS_RATE},
402 {5644800, 22050, 0x8, CS35L33_INT_FS_RATE},
403 {5644800, 44100, 0xC, CS35L33_INT_FS_RATE},
404
405 {6000000, 8000, 0x1, 0},
406 {6000000, 11025, 0x2, 0},
407 {6000000, 11029, 0x3, 0},
408 {6000000, 12000, 0x4, 0},
409 {6000000, 16000, 0x5, 0},
410 {6000000, 22050, 0x6, 0},
411 {6000000, 22059, 0x7, 0},
412 {6000000, 24000, 0x8, 0},
413 {6000000, 32000, 0x9, 0},
414 {6000000, 44100, 0xA, 0},
415 {6000000, 44118, 0xB, 0},
416 {6000000, 48000, 0xC, 0},
417
418 {6144000, 8000, 0x1, CS35L33_INT_FS_RATE},
419 {6144000, 12000, 0x4, CS35L33_INT_FS_RATE},
420 {6144000, 16000, 0x5, CS35L33_INT_FS_RATE},
421 {6144000, 24000, 0x8, CS35L33_INT_FS_RATE},
422 {6144000, 32000, 0x9, CS35L33_INT_FS_RATE},
423 {6144000, 48000, 0xC, CS35L33_INT_FS_RATE},
424 };
425
426 static int cs35l33_get_mclk_coeff(int mclk, int srate)
427 {
428 int i;
429
430 for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) {
431 if (cs35l33_mclk_coeffs[i].mclk == mclk &&
432 cs35l33_mclk_coeffs[i].srate == srate)
433 return i;
434 }
435 return -EINVAL;
436 }
437
438 static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
439 {
440 struct snd_soc_component *component = codec_dai->component;
441 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
442
443 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
444 case SND_SOC_DAIFMT_CBM_CFM:
445 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
446 CS35L33_MS_MASK, CS35L33_MS_MASK);
447 dev_dbg(component->dev, "Audio port in master mode\n");
448 break;
449 case SND_SOC_DAIFMT_CBS_CFS:
450 regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
451 CS35L33_MS_MASK, 0);
452 dev_dbg(component->dev, "Audio port in slave mode\n");
453 break;
454 default:
455 return -EINVAL;
456 }
457
458 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
459 case SND_SOC_DAIFMT_DSP_A:
460 /*
461 * tdm mode in cs35l33 resembles dsp-a mode very
462 * closely, it is dsp-a with fsync shifted left by half bclk
463 */
464 priv->is_tdm_mode = true;
465 dev_dbg(component->dev, "Audio port in TDM mode\n");
466 break;
467 case SND_SOC_DAIFMT_I2S:
468 priv->is_tdm_mode = false;
469 dev_dbg(component->dev, "Audio port in I2S mode\n");
470 break;
471 default:
472 return -EINVAL;
473 }
474
475 return 0;
476 }
477
478 static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream,
479 struct snd_pcm_hw_params *params,
480 struct snd_soc_dai *dai)
481 {
482 struct snd_soc_component *component = dai->component;
483 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
484 int sample_size = params_width(params);
485 int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));
486
487 if (coeff < 0)
488 return coeff;
489
490 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
491 CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
492 cs35l33_mclk_coeffs[coeff].int_fs_ratio
493 | cs35l33_mclk_coeffs[coeff].adsp_rate);
494
495 if (priv->is_tdm_mode) {
496 sample_size = (sample_size / 8) - 1;
497 if (sample_size > 2)
498 sample_size = 2;
499 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
500 CS35L33_AUDIN_RX_DEPTH,
501 sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
502 }
503
504 dev_dbg(component->dev, "sample rate=%d, bits per sample=%d\n",
505 params_rate(params), params_width(params));
506
507 return 0;
508 }
509
510 static const unsigned int cs35l33_src_rates[] = {
511 8000, 11025, 11029, 12000, 16000, 22050,
512 22059, 24000, 32000, 44100, 44118, 48000
513 };
514
515 static const struct snd_pcm_hw_constraint_list cs35l33_constraints = {
516 .count = ARRAY_SIZE(cs35l33_src_rates),
517 .list = cs35l33_src_rates,
518 };
519
520 static int cs35l33_pcm_startup(struct snd_pcm_substream *substream,
521 struct snd_soc_dai *dai)
522 {
523 snd_pcm_hw_constraint_list(substream->runtime, 0,
524 SNDRV_PCM_HW_PARAM_RATE,
525 &cs35l33_constraints);
526 return 0;
527 }
528
529 static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate)
530 {
531 struct snd_soc_component *component = dai->component;
532 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
533
534 if (tristate) {
535 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
536 CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S);
537 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
538 CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM);
539 } else {
540 regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
541 CS35L33_SDOUT_3ST_I2S, 0);
542 regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
543 CS35L33_SDOUT_3ST_TDM, 0);
544 }
545
546 return 0;
547 }
548
549 static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
550 unsigned int rx_mask, int slots, int slot_width)
551 {
552 struct snd_soc_component *component = dai->component;
553 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
554 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
555 unsigned int reg, bit_pos, i;
556 int slot, slot_num;
557
558 if (slot_width != 8)
559 return -EINVAL;
560
561 /* scan rx_mask for aud slot */
562 slot = ffs(rx_mask) - 1;
563 if (slot >= 0) {
564 regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
565 CS35L33_X_LOC, slot);
566 dev_dbg(component->dev, "Audio starts from slots %d", slot);
567 }
568
569 /*
570 * scan tx_mask: vmon(2 slots); imon (2 slots);
571 * vpmon (1 slot) vbstmon (1 slot)
572 */
573 slot = ffs(tx_mask) - 1;
574 slot_num = 0;
575
576 for (i = 0; i < 2 ; i++) {
577 /* disable vpmon/vbstmon: enable later if set in tx_mask */
578 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i,
579 CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE
580 | CS35L33_X_LOC);
581 }
582
583 /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/
584 snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route,
585 ARRAY_SIZE(cs35l33_vp_vbst_mon_route));
586
587 while (slot >= 0) {
588 /* configure VMON_TX_LOC */
589 if (slot_num == 0) {
590 regmap_update_bits(priv->regmap, CS35L33_TX_VMON,
591 CS35L33_X_STATE | CS35L33_X_LOC, slot);
592 dev_dbg(component->dev, "VMON enabled in slots %d-%d",
593 slot, slot + 1);
594 }
595
596 /* configure IMON_TX_LOC */
597 if (slot_num == 3) {
598 regmap_update_bits(priv->regmap, CS35L33_TX_IMON,
599 CS35L33_X_STATE | CS35L33_X_LOC, slot);
600 dev_dbg(component->dev, "IMON enabled in slots %d-%d",
601 slot, slot + 1);
602 }
603
604 /* configure VPMON_TX_LOC */
605 if (slot_num == 4) {
606 regmap_update_bits(priv->regmap, CS35L33_TX_VPMON,
607 CS35L33_X_STATE | CS35L33_X_LOC, slot);
608 snd_soc_dapm_add_routes(dapm,
609 &cs35l33_vp_vbst_mon_route[0], 2);
610 dev_dbg(component->dev, "VPMON enabled in slots %d", slot);
611 }
612
613 /* configure VBSTMON_TX_LOC */
614 if (slot_num == 5) {
615 regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON,
616 CS35L33_X_STATE | CS35L33_X_LOC, slot);
617 snd_soc_dapm_add_routes(dapm,
618 &cs35l33_vp_vbst_mon_route[2], 2);
619 dev_dbg(component->dev,
620 "VBSTMON enabled in slots %d", slot);
621 }
622
623 /* Enable the relevant tx slot */
624 reg = CS35L33_TX_EN4 - (slot/8);
625 bit_pos = slot - ((slot / 8) * (8));
626 regmap_update_bits(priv->regmap, reg,
627 1 << bit_pos, 1 << bit_pos);
628
629 tx_mask &= ~(1 << slot);
630 slot = ffs(tx_mask) - 1;
631 slot_num++;
632 }
633
634 return 0;
635 }
636
637 static int cs35l33_component_set_sysclk(struct snd_soc_component *component,
638 int clk_id, int source, unsigned int freq, int dir)
639 {
640 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
641
642 switch (freq) {
643 case CS35L33_MCLK_5644:
644 case CS35L33_MCLK_6:
645 case CS35L33_MCLK_6144:
646 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
647 CS35L33_MCLKDIV2, 0);
648 cs35l33->mclk_int = freq;
649 break;
650 case CS35L33_MCLK_11289:
651 case CS35L33_MCLK_12:
652 case CS35L33_MCLK_12288:
653 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
654 CS35L33_MCLKDIV2, CS35L33_MCLKDIV2);
655 cs35l33->mclk_int = freq/2;
656 break;
657 default:
658 cs35l33->mclk_int = 0;
659 return -EINVAL;
660 }
661
662 dev_dbg(component->dev, "external mclk freq=%d, internal mclk freq=%d\n",
663 freq, cs35l33->mclk_int);
664
665 return 0;
666 }
667
668 static const struct snd_soc_dai_ops cs35l33_ops = {
669 .startup = cs35l33_pcm_startup,
670 .set_tristate = cs35l33_set_tristate,
671 .set_fmt = cs35l33_set_dai_fmt,
672 .hw_params = cs35l33_pcm_hw_params,
673 .set_tdm_slot = cs35l33_set_tdm_slot,
674 };
675
676 static struct snd_soc_dai_driver cs35l33_dai = {
677 .name = "cs35l33-dai",
678 .id = 0,
679 .playback = {
680 .stream_name = "CS35L33 Playback",
681 .channels_min = 1,
682 .channels_max = 1,
683 .rates = CS35L33_RATES,
684 .formats = CS35L33_FORMATS,
685 },
686 .capture = {
687 .stream_name = "CS35L33 Capture",
688 .channels_min = 2,
689 .channels_max = 2,
690 .rates = CS35L33_RATES,
691 .formats = CS35L33_FORMATS,
692 },
693 .ops = &cs35l33_ops,
694 .symmetric_rates = 1,
695 };
696
697 static int cs35l33_set_hg_data(struct snd_soc_component *component,
698 struct cs35l33_pdata *pdata)
699 {
700 struct cs35l33_hg *hg_config = &pdata->hg_config;
701 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
702 struct cs35l33_private *priv = snd_soc_component_get_drvdata(component);
703
704 if (hg_config->enable_hg_algo) {
705 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
706 CS35L33_MEM_DEPTH_MASK,
707 hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT);
708 regmap_write(priv->regmap, CS35L33_HG_REL_RATE,
709 hg_config->release_rate);
710 regmap_update_bits(priv->regmap, CS35L33_HG_HEAD,
711 CS35L33_HD_RM_MASK,
712 hg_config->hd_rm << CS35L33_HD_RM_SHIFT);
713 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
714 CS35L33_LDO_THLD_MASK,
715 hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT);
716 regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
717 CS35L33_LDO_DISABLE_MASK,
718 hg_config->ldo_path_disable <<
719 CS35L33_LDO_DISABLE_SHIFT);
720 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
721 CS35L33_LDO_ENTRY_DELAY_MASK,
722 hg_config->ldo_entry_delay <<
723 CS35L33_LDO_ENTRY_DELAY_SHIFT);
724 if (hg_config->vp_hg_auto) {
725 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
726 CS35L33_VP_HG_AUTO_MASK,
727 CS35L33_VP_HG_AUTO_MASK);
728 snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route,
729 ARRAY_SIZE(cs35l33_vphg_auto_route));
730 }
731 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
732 CS35L33_VP_HG_MASK,
733 hg_config->vp_hg << CS35L33_VP_HG_SHIFT);
734 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
735 CS35L33_VP_HG_RATE_MASK,
736 hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT);
737 regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
738 CS35L33_VP_HG_VA_MASK,
739 hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT);
740 regmap_update_bits(priv->regmap, CS35L33_HG_EN,
741 CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK);
742 }
743 return 0;
744 }
745
746 static int cs35l33_set_bst_ipk(struct snd_soc_component *component, unsigned int bst)
747 {
748 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
749 int ret = 0, steps = 0;
750
751 /* Boost current in uA */
752 if (bst > 3600000 || bst < 1850000) {
753 dev_err(component->dev, "Invalid boost current %d\n", bst);
754 ret = -EINVAL;
755 goto err;
756 }
757
758 if (bst % 15625) {
759 dev_err(component->dev, "Current not a multiple of 15625uA (%d)\n",
760 bst);
761 ret = -EINVAL;
762 goto err;
763 }
764
765 while (bst > 1850000) {
766 bst -= 15625;
767 steps++;
768 }
769
770 regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL,
771 steps+0x70);
772
773 err:
774 return ret;
775 }
776
777 static int cs35l33_probe(struct snd_soc_component *component)
778 {
779 struct cs35l33_private *cs35l33 = snd_soc_component_get_drvdata(component);
780
781 cs35l33->component = component;
782 pm_runtime_get_sync(component->dev);
783
784 regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL,
785 CS35L33_ALIVE_WD_DIS, 0x8);
786 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2,
787 CS35L33_ALIVE_WD_DIS2,
788 CS35L33_ALIVE_WD_DIS2);
789
790 /* Set Platform Data */
791 regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1,
792 CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl);
793 regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL,
794 CS35L33_AMP_DRV_SEL_MASK,
795 cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT);
796
797 if (cs35l33->pdata.boost_ipk)
798 cs35l33_set_bst_ipk(component, cs35l33->pdata.boost_ipk);
799
800 if (cs35l33->enable_soft_ramp) {
801 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
802 CS35L33_DIGSFT, CS35L33_DIGSFT);
803 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
804 CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate);
805 } else {
806 snd_soc_component_update_bits(component, CS35L33_DAC_CTL,
807 CS35L33_DIGSFT, 0);
808 }
809
810 /* update IMON scaling rate if different from default of 0x8 */
811 if (cs35l33->pdata.imon_adc_scale != 0x8)
812 snd_soc_component_update_bits(component, CS35L33_ADC_CTL,
813 CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale);
814
815 cs35l33_set_hg_data(component, &(cs35l33->pdata));
816
817 /*
818 * unmask important interrupts that causes the chip to enter
819 * speaker safe mode and hence deserves user attention
820 */
821 regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1,
822 CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT |
823 CS35L33_M_CAL_ERR, 0);
824
825 pm_runtime_put_sync(component->dev);
826
827 return 0;
828 }
829
830 static const struct snd_soc_component_driver soc_component_dev_cs35l33 = {
831 .probe = cs35l33_probe,
832 .set_bias_level = cs35l33_set_bias_level,
833 .set_sysclk = cs35l33_component_set_sysclk,
834 .controls = cs35l33_snd_controls,
835 .num_controls = ARRAY_SIZE(cs35l33_snd_controls),
836 .dapm_widgets = cs35l33_dapm_widgets,
837 .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets),
838 .dapm_routes = cs35l33_audio_map,
839 .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map),
840 .use_pmdown_time = 1,
841 .endianness = 1,
842 .non_legacy_dai_naming = 1,
843 };
844
845 static const struct regmap_config cs35l33_regmap = {
846 .reg_bits = 8,
847 .val_bits = 8,
848
849 .max_register = CS35L33_MAX_REGISTER,
850 .reg_defaults = cs35l33_reg,
851 .num_reg_defaults = ARRAY_SIZE(cs35l33_reg),
852 .volatile_reg = cs35l33_volatile_register,
853 .readable_reg = cs35l33_readable_register,
854 .writeable_reg = cs35l33_writeable_register,
855 .cache_type = REGCACHE_RBTREE,
856 .use_single_read = true,
857 .use_single_write = true,
858 };
859
860 static int __maybe_unused cs35l33_runtime_resume(struct device *dev)
861 {
862 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
863 int ret;
864
865 dev_dbg(dev, "%s\n", __func__);
866
867 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
868
869 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
870 cs35l33->core_supplies);
871 if (ret != 0) {
872 dev_err(dev, "Failed to enable core supplies: %d\n", ret);
873 return ret;
874 }
875
876 regcache_cache_only(cs35l33->regmap, false);
877
878 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
879
880 msleep(CS35L33_BOOT_DELAY);
881
882 ret = regcache_sync(cs35l33->regmap);
883 if (ret != 0) {
884 dev_err(dev, "Failed to restore register cache\n");
885 goto err;
886 }
887
888 return 0;
889
890 err:
891 regcache_cache_only(cs35l33->regmap, true);
892 regulator_bulk_disable(cs35l33->num_core_supplies,
893 cs35l33->core_supplies);
894
895 return ret;
896 }
897
898 static int __maybe_unused cs35l33_runtime_suspend(struct device *dev)
899 {
900 struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
901
902 dev_dbg(dev, "%s\n", __func__);
903
904 /* redo the calibration in next power up */
905 cs35l33->amp_cal = false;
906
907 regcache_cache_only(cs35l33->regmap, true);
908 regcache_mark_dirty(cs35l33->regmap);
909 regulator_bulk_disable(cs35l33->num_core_supplies,
910 cs35l33->core_supplies);
911
912 return 0;
913 }
914
915 static const struct dev_pm_ops cs35l33_pm_ops = {
916 SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend,
917 cs35l33_runtime_resume,
918 NULL)
919 };
920
921 static int cs35l33_get_hg_data(const struct device_node *np,
922 struct cs35l33_pdata *pdata)
923 {
924 struct device_node *hg;
925 struct cs35l33_hg *hg_config = &pdata->hg_config;
926 u32 val32;
927
928 hg = of_get_child_by_name(np, "cirrus,hg-algo");
929 hg_config->enable_hg_algo = hg ? true : false;
930
931 if (hg_config->enable_hg_algo) {
932 if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0)
933 hg_config->mem_depth = val32;
934 if (of_property_read_u32(hg, "cirrus,release-rate",
935 &val32) >= 0)
936 hg_config->release_rate = val32;
937 if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0)
938 hg_config->ldo_thld = val32;
939 if (of_property_read_u32(hg, "cirrus,ldo-path-disable",
940 &val32) >= 0)
941 hg_config->ldo_path_disable = val32;
942 if (of_property_read_u32(hg, "cirrus,ldo-entry-delay",
943 &val32) >= 0)
944 hg_config->ldo_entry_delay = val32;
945
946 hg_config->vp_hg_auto = of_property_read_bool(hg,
947 "cirrus,vp-hg-auto");
948
949 if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0)
950 hg_config->vp_hg = val32;
951 if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0)
952 hg_config->vp_hg_rate = val32;
953 if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0)
954 hg_config->vp_hg_va = val32;
955 }
956
957 of_node_put(hg);
958
959 return 0;
960 }
961
962 static irqreturn_t cs35l33_irq_thread(int irq, void *data)
963 {
964 struct cs35l33_private *cs35l33 = data;
965 struct snd_soc_component *component = cs35l33->component;
966 unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2;
967
968 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2,
969 &sticky_val2);
970 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
971 &sticky_val1);
972 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2);
973 regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1);
974
975 /* Check to see if the unmasked bits are active,
976 * if not then exit.
977 */
978 if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2))
979 return IRQ_NONE;
980
981 regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
982 &current_val);
983
984 /* handle the interrupts */
985
986 if (sticky_val1 & CS35L33_AMP_SHORT) {
987 dev_crit(component->dev, "Amp short error\n");
988 if (!(current_val & CS35L33_AMP_SHORT)) {
989 dev_dbg(component->dev,
990 "Amp short error release\n");
991 regmap_update_bits(cs35l33->regmap,
992 CS35L33_AMP_CTL,
993 CS35L33_AMP_SHORT_RLS, 0);
994 regmap_update_bits(cs35l33->regmap,
995 CS35L33_AMP_CTL,
996 CS35L33_AMP_SHORT_RLS,
997 CS35L33_AMP_SHORT_RLS);
998 regmap_update_bits(cs35l33->regmap,
999 CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS,
1000 0);
1001 }
1002 }
1003
1004 if (sticky_val1 & CS35L33_CAL_ERR) {
1005 dev_err(component->dev, "Cal error\n");
1006
1007 /* redo the calibration in next power up */
1008 cs35l33->amp_cal = false;
1009
1010 if (!(current_val & CS35L33_CAL_ERR)) {
1011 dev_dbg(component->dev, "Cal error release\n");
1012 regmap_update_bits(cs35l33->regmap,
1013 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1014 0);
1015 regmap_update_bits(cs35l33->regmap,
1016 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1017 CS35L33_CAL_ERR_RLS);
1018 regmap_update_bits(cs35l33->regmap,
1019 CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
1020 0);
1021 }
1022 }
1023
1024 if (sticky_val1 & CS35L33_OTE) {
1025 dev_crit(component->dev, "Over temperature error\n");
1026 if (!(current_val & CS35L33_OTE)) {
1027 dev_dbg(component->dev,
1028 "Over temperature error release\n");
1029 regmap_update_bits(cs35l33->regmap,
1030 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1031 regmap_update_bits(cs35l33->regmap,
1032 CS35L33_AMP_CTL, CS35L33_OTE_RLS,
1033 CS35L33_OTE_RLS);
1034 regmap_update_bits(cs35l33->regmap,
1035 CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
1036 }
1037 }
1038
1039 if (sticky_val1 & CS35L33_OTW) {
1040 dev_err(component->dev, "Over temperature warning\n");
1041 if (!(current_val & CS35L33_OTW)) {
1042 dev_dbg(component->dev,
1043 "Over temperature warning release\n");
1044 regmap_update_bits(cs35l33->regmap,
1045 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1046 regmap_update_bits(cs35l33->regmap,
1047 CS35L33_AMP_CTL, CS35L33_OTW_RLS,
1048 CS35L33_OTW_RLS);
1049 regmap_update_bits(cs35l33->regmap,
1050 CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
1051 }
1052 }
1053 if (CS35L33_ALIVE_ERR & sticky_val1)
1054 dev_err(component->dev, "ERROR: ADSPCLK Interrupt\n");
1055
1056 if (CS35L33_MCLK_ERR & sticky_val1)
1057 dev_err(component->dev, "ERROR: MCLK Interrupt\n");
1058
1059 if (CS35L33_VMON_OVFL & sticky_val2)
1060 dev_err(component->dev,
1061 "ERROR: VMON Overflow Interrupt\n");
1062
1063 if (CS35L33_IMON_OVFL & sticky_val2)
1064 dev_err(component->dev,
1065 "ERROR: IMON Overflow Interrupt\n");
1066
1067 if (CS35L33_VPMON_OVFL & sticky_val2)
1068 dev_err(component->dev,
1069 "ERROR: VPMON Overflow Interrupt\n");
1070
1071 return IRQ_HANDLED;
1072 }
1073
1074 static const char * const cs35l33_core_supplies[] = {
1075 "VA",
1076 "VP",
1077 };
1078
1079 static int cs35l33_of_get_pdata(struct device *dev,
1080 struct cs35l33_private *cs35l33)
1081 {
1082 struct device_node *np = dev->of_node;
1083 struct cs35l33_pdata *pdata = &cs35l33->pdata;
1084 u32 val32;
1085
1086 if (!np)
1087 return 0;
1088
1089 if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) {
1090 pdata->boost_ctl = val32;
1091 pdata->amp_drv_sel = 1;
1092 }
1093
1094 if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) {
1095 pdata->ramp_rate = val32;
1096 cs35l33->enable_soft_ramp = true;
1097 }
1098
1099 if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0)
1100 pdata->boost_ipk = val32;
1101
1102 if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) {
1103 if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6))
1104 pdata->imon_adc_scale = val32;
1105 else
1106 /* use default value */
1107 pdata->imon_adc_scale = 0x8;
1108 } else {
1109 /* use default value */
1110 pdata->imon_adc_scale = 0x8;
1111 }
1112
1113 cs35l33_get_hg_data(np, pdata);
1114
1115 return 0;
1116 }
1117
1118 static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
1119 const struct i2c_device_id *id)
1120 {
1121 struct cs35l33_private *cs35l33;
1122 struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
1123 int ret, devid, i;
1124 unsigned int reg;
1125
1126 cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
1127 GFP_KERNEL);
1128 if (!cs35l33)
1129 return -ENOMEM;
1130
1131 i2c_set_clientdata(i2c_client, cs35l33);
1132 cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
1133 if (IS_ERR(cs35l33->regmap)) {
1134 ret = PTR_ERR(cs35l33->regmap);
1135 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1136 return ret;
1137 }
1138
1139 regcache_cache_only(cs35l33->regmap, true);
1140
1141 for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
1142 cs35l33->core_supplies[i].supply
1143 = cs35l33_core_supplies[i];
1144 cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);
1145
1146 ret = devm_regulator_bulk_get(&i2c_client->dev,
1147 cs35l33->num_core_supplies,
1148 cs35l33->core_supplies);
1149 if (ret != 0) {
1150 dev_err(&i2c_client->dev,
1151 "Failed to request core supplies: %d\n",
1152 ret);
1153 return ret;
1154 }
1155
1156 if (pdata) {
1157 cs35l33->pdata = *pdata;
1158 } else {
1159 cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
1160 pdata = &cs35l33->pdata;
1161 }
1162
1163 ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
1164 cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
1165 "cs35l33", cs35l33);
1166 if (ret != 0)
1167 dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);
1168
1169 /* We could issue !RST or skip it based on AMP topology */
1170 cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
1171 "reset-gpios", GPIOD_OUT_HIGH);
1172 if (IS_ERR(cs35l33->reset_gpio)) {
1173 dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
1174 __func__);
1175 return PTR_ERR(cs35l33->reset_gpio);
1176 }
1177
1178 ret = regulator_bulk_enable(cs35l33->num_core_supplies,
1179 cs35l33->core_supplies);
1180 if (ret != 0) {
1181 dev_err(&i2c_client->dev,
1182 "Failed to enable core supplies: %d\n",
1183 ret);
1184 return ret;
1185 }
1186
1187 gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
1188
1189 msleep(CS35L33_BOOT_DELAY);
1190 regcache_cache_only(cs35l33->regmap, false);
1191
1192 /* initialize codec */
1193 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, &reg);
1194 devid = (reg & 0xFF) << 12;
1195 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, &reg);
1196 devid |= (reg & 0xFF) << 4;
1197 ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, &reg);
1198 devid |= (reg & 0xF0) >> 4;
1199
1200 if (devid != CS35L33_CHIP_ID) {
1201 dev_err(&i2c_client->dev,
1202 "CS35L33 Device ID (%X). Expected ID %X\n",
1203 devid, CS35L33_CHIP_ID);
1204 goto err_enable;
1205 }
1206
1207 ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, &reg);
1208 if (ret < 0) {
1209 dev_err(&i2c_client->dev, "Get Revision ID failed\n");
1210 goto err_enable;
1211 }
1212
1213 dev_info(&i2c_client->dev,
1214 "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF);
1215
1216 ret = regmap_register_patch(cs35l33->regmap,
1217 cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
1218 if (ret < 0) {
1219 dev_err(&i2c_client->dev,
1220 "Error in applying regmap patch: %d\n", ret);
1221 goto err_enable;
1222 }
1223
1224 /* disable mclk and tdm */
1225 regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
1226 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
1227 CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);
1228
1229 pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
1230 pm_runtime_use_autosuspend(&i2c_client->dev);
1231 pm_runtime_set_active(&i2c_client->dev);
1232 pm_runtime_enable(&i2c_client->dev);
1233
1234 ret = devm_snd_soc_register_component(&i2c_client->dev,
1235 &soc_component_dev_cs35l33, &cs35l33_dai, 1);
1236 if (ret < 0) {
1237 dev_err(&i2c_client->dev, "%s: Register component failed\n",
1238 __func__);
1239 goto err_enable;
1240 }
1241
1242 return 0;
1243
1244 err_enable:
1245 regulator_bulk_disable(cs35l33->num_core_supplies,
1246 cs35l33->core_supplies);
1247
1248 return ret;
1249 }
1250
1251 static int cs35l33_i2c_remove(struct i2c_client *client)
1252 {
1253 struct cs35l33_private *cs35l33 = i2c_get_clientdata(client);
1254
1255 gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
1256
1257 pm_runtime_disable(&client->dev);
1258 regulator_bulk_disable(cs35l33->num_core_supplies,
1259 cs35l33->core_supplies);
1260
1261 return 0;
1262 }
1263
1264 static const struct of_device_id cs35l33_of_match[] = {
1265 { .compatible = "cirrus,cs35l33", },
1266 {},
1267 };
1268 MODULE_DEVICE_TABLE(of, cs35l33_of_match);
1269
1270 static const struct i2c_device_id cs35l33_id[] = {
1271 {"cs35l33", 0},
1272 {}
1273 };
1274
1275 MODULE_DEVICE_TABLE(i2c, cs35l33_id);
1276
1277 static struct i2c_driver cs35l33_i2c_driver = {
1278 .driver = {
1279 .name = "cs35l33",
1280 .pm = &cs35l33_pm_ops,
1281 .of_match_table = cs35l33_of_match,
1282
1283 },
1284 .id_table = cs35l33_id,
1285 .probe = cs35l33_i2c_probe,
1286 .remove = cs35l33_i2c_remove,
1287
1288 };
1289 module_i2c_driver(cs35l33_i2c_driver);
1290
1291 MODULE_DESCRIPTION("ASoC CS35L33 driver");
1292 MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>");
1293 MODULE_LICENSE("GPL");
Linux with added FPC-III support