?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / sound / soc / codecs / cs35l35.c
blobe330427a4314f7644ac2b83d0332ebcb03c39fb7
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * cs35l35.c -- CS35L35 ALSA SoC audio driver
4 *
5 * Copyright 2017 Cirrus Logic, Inc.
6 *
7 * Author: Brian Austin <brian.austin@cirrus.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/version.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/delay.h>
16 #include <linux/i2c.h>
17 #include <linux/slab.h>
18 #include <linux/platform_device.h>
19 #include <linux/regulator/consumer.h>
20 #include <linux/gpio/consumer.h>
21 #include <linux/of_device.h>
22 #include <linux/of_gpio.h>
23 #include <linux/regmap.h>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc.h>
28 #include <sound/soc-dapm.h>
29 #include <linux/gpio.h>
30 #include <sound/initval.h>
31 #include <sound/tlv.h>
32 #include <sound/cs35l35.h>
33 #include <linux/of_irq.h>
34 #include <linux/completion.h>
35
36 #include "cs35l35.h"
37
38 /*
39 * Some fields take zero as a valid value so use a high bit flag that won't
40 * get written to the device to mark those.
41 */
42 #define CS35L35_VALID_PDATA 0x80000000
43
44 static const struct reg_default cs35l35_reg[] = {
45 {CS35L35_PWRCTL1, 0x01},
46 {CS35L35_PWRCTL2, 0x11},
47 {CS35L35_PWRCTL3, 0x00},
48 {CS35L35_CLK_CTL1, 0x04},
49 {CS35L35_CLK_CTL2, 0x12},
50 {CS35L35_CLK_CTL3, 0xCF},
51 {CS35L35_SP_FMT_CTL1, 0x20},
52 {CS35L35_SP_FMT_CTL2, 0x00},
53 {CS35L35_SP_FMT_CTL3, 0x02},
54 {CS35L35_MAG_COMP_CTL, 0x00},
55 {CS35L35_AMP_INP_DRV_CTL, 0x01},
56 {CS35L35_AMP_DIG_VOL_CTL, 0x12},
57 {CS35L35_AMP_DIG_VOL, 0x00},
58 {CS35L35_ADV_DIG_VOL, 0x00},
59 {CS35L35_PROTECT_CTL, 0x06},
60 {CS35L35_AMP_GAIN_AUD_CTL, 0x13},
61 {CS35L35_AMP_GAIN_PDM_CTL, 0x00},
62 {CS35L35_AMP_GAIN_ADV_CTL, 0x00},
63 {CS35L35_GPI_CTL, 0x00},
64 {CS35L35_BST_CVTR_V_CTL, 0x00},
65 {CS35L35_BST_PEAK_I, 0x07},
66 {CS35L35_BST_RAMP_CTL, 0x85},
67 {CS35L35_BST_CONV_COEF_1, 0x24},
68 {CS35L35_BST_CONV_COEF_2, 0x24},
69 {CS35L35_BST_CONV_SLOPE_COMP, 0x4E},
70 {CS35L35_BST_CONV_SW_FREQ, 0x04},
71 {CS35L35_CLASS_H_CTL, 0x0B},
72 {CS35L35_CLASS_H_HEADRM_CTL, 0x0B},
73 {CS35L35_CLASS_H_RELEASE_RATE, 0x08},
74 {CS35L35_CLASS_H_FET_DRIVE_CTL, 0x41},
75 {CS35L35_CLASS_H_VP_CTL, 0xC5},
76 {CS35L35_VPBR_CTL, 0x0A},
77 {CS35L35_VPBR_VOL_CTL, 0x90},
78 {CS35L35_VPBR_TIMING_CTL, 0x6A},
79 {CS35L35_VPBR_MODE_VOL_CTL, 0x00},
80 {CS35L35_SPKR_MON_CTL, 0xC0},
81 {CS35L35_IMON_SCALE_CTL, 0x30},
82 {CS35L35_AUDIN_RXLOC_CTL, 0x00},
83 {CS35L35_ADVIN_RXLOC_CTL, 0x80},
84 {CS35L35_VMON_TXLOC_CTL, 0x00},
85 {CS35L35_IMON_TXLOC_CTL, 0x80},
86 {CS35L35_VPMON_TXLOC_CTL, 0x04},
87 {CS35L35_VBSTMON_TXLOC_CTL, 0x84},
88 {CS35L35_VPBR_STATUS_TXLOC_CTL, 0x04},
89 {CS35L35_ZERO_FILL_LOC_CTL, 0x00},
90 {CS35L35_AUDIN_DEPTH_CTL, 0x0F},
91 {CS35L35_SPKMON_DEPTH_CTL, 0x0F},
92 {CS35L35_SUPMON_DEPTH_CTL, 0x0F},
93 {CS35L35_ZEROFILL_DEPTH_CTL, 0x00},
94 {CS35L35_MULT_DEV_SYNCH1, 0x02},
95 {CS35L35_MULT_DEV_SYNCH2, 0x80},
96 {CS35L35_PROT_RELEASE_CTL, 0x00},
97 {CS35L35_DIAG_MODE_REG_LOCK, 0x00},
98 {CS35L35_DIAG_MODE_CTL_1, 0x40},
99 {CS35L35_DIAG_MODE_CTL_2, 0x00},
100 {CS35L35_INT_MASK_1, 0xFF},
101 {CS35L35_INT_MASK_2, 0xFF},
102 {CS35L35_INT_MASK_3, 0xFF},
103 {CS35L35_INT_MASK_4, 0xFF},
104
105 };
106
107 static bool cs35l35_volatile_register(struct device *dev, unsigned int reg)
108 {
109 switch (reg) {
110 case CS35L35_INT_STATUS_1:
111 case CS35L35_INT_STATUS_2:
112 case CS35L35_INT_STATUS_3:
113 case CS35L35_INT_STATUS_4:
114 case CS35L35_PLL_STATUS:
115 case CS35L35_OTP_TRIM_STATUS:
116 return true;
117 default:
118 return false;
119 }
120 }
121
122 static bool cs35l35_readable_register(struct device *dev, unsigned int reg)
123 {
124 switch (reg) {
125 case CS35L35_DEVID_AB ... CS35L35_PWRCTL3:
126 case CS35L35_CLK_CTL1 ... CS35L35_SP_FMT_CTL3:
127 case CS35L35_MAG_COMP_CTL ... CS35L35_AMP_GAIN_AUD_CTL:
128 case CS35L35_AMP_GAIN_PDM_CTL ... CS35L35_BST_PEAK_I:
129 case CS35L35_BST_RAMP_CTL ... CS35L35_BST_CONV_SW_FREQ:
130 case CS35L35_CLASS_H_CTL ... CS35L35_CLASS_H_VP_CTL:
131 case CS35L35_CLASS_H_STATUS:
132 case CS35L35_VPBR_CTL ... CS35L35_VPBR_MODE_VOL_CTL:
133 case CS35L35_VPBR_ATTEN_STATUS:
134 case CS35L35_SPKR_MON_CTL:
135 case CS35L35_IMON_SCALE_CTL ... CS35L35_ZEROFILL_DEPTH_CTL:
136 case CS35L35_MULT_DEV_SYNCH1 ... CS35L35_PROT_RELEASE_CTL:
137 case CS35L35_DIAG_MODE_REG_LOCK ... CS35L35_DIAG_MODE_CTL_2:
138 case CS35L35_INT_MASK_1 ... CS35L35_PLL_STATUS:
139 case CS35L35_OTP_TRIM_STATUS:
140 return true;
141 default:
142 return false;
143 }
144 }
145
146 static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
147 {
148 switch (reg) {
149 case CS35L35_INT_STATUS_1:
150 case CS35L35_INT_STATUS_2:
151 case CS35L35_INT_STATUS_3:
152 case CS35L35_INT_STATUS_4:
153 case CS35L35_PLL_STATUS:
154 case CS35L35_OTP_TRIM_STATUS:
155 return true;
156 default:
157 return false;
158 }
159 }
160
161 static void cs35l35_reset(struct cs35l35_private *cs35l35)
162 {
163 gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
164 usleep_range(2000, 2100);
165 gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
166 usleep_range(1000, 1100);
167 }
168
169 static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
170 {
171 int ret;
172
173 if (cs35l35->pdata.ext_bst) {
174 usleep_range(5000, 5500);
175 return 0;
176 }
177
178 reinit_completion(&cs35l35->pdn_done);
179
180 ret = wait_for_completion_timeout(&cs35l35->pdn_done,
181 msecs_to_jiffies(100));
182 if (ret == 0) {
183 dev_err(cs35l35->dev, "PDN_DONE did not complete\n");
184 return -ETIMEDOUT;
185 }
186
187 return 0;
188 }
189
190 static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
191 struct snd_kcontrol *kcontrol, int event)
192 {
193 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
194 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
195 int ret = 0;
196
197 switch (event) {
198 case SND_SOC_DAPM_PRE_PMU:
199 regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
200 CS35L35_MCLK_DIS_MASK,
201 0 << CS35L35_MCLK_DIS_SHIFT);
202 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
203 CS35L35_DISCHG_FILT_MASK,
204 0 << CS35L35_DISCHG_FILT_SHIFT);
205 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
206 CS35L35_PDN_ALL_MASK, 0);
207 break;
208 case SND_SOC_DAPM_POST_PMD:
209 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
210 CS35L35_DISCHG_FILT_MASK,
211 1 << CS35L35_DISCHG_FILT_SHIFT);
212 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
213 CS35L35_PDN_ALL_MASK, 1);
214
215 /* Already muted, so disable volume ramp for faster shutdown */
216 regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL,
217 CS35L35_AMP_DIGSFT_MASK, 0);
218
219 ret = cs35l35_wait_for_pdn(cs35l35);
220
221 regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
222 CS35L35_MCLK_DIS_MASK,
223 1 << CS35L35_MCLK_DIS_SHIFT);
224
225 regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL,
226 CS35L35_AMP_DIGSFT_MASK,
227 1 << CS35L35_AMP_DIGSFT_SHIFT);
228 break;
229 default:
230 dev_err(component->dev, "Invalid event = 0x%x\n", event);
231 ret = -EINVAL;
232 }
233 return ret;
234 }
235
236 static int cs35l35_main_amp_event(struct snd_soc_dapm_widget *w,
237 struct snd_kcontrol *kcontrol, int event)
238 {
239 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
240 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
241 unsigned int reg[4];
242 int i;
243
244 switch (event) {
245 case SND_SOC_DAPM_PRE_PMU:
246 if (cs35l35->pdata.bst_pdn_fet_on)
247 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
248 CS35L35_PDN_BST_MASK,
249 0 << CS35L35_PDN_BST_FETON_SHIFT);
250 else
251 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
252 CS35L35_PDN_BST_MASK,
253 0 << CS35L35_PDN_BST_FETOFF_SHIFT);
254 break;
255 case SND_SOC_DAPM_POST_PMU:
256 usleep_range(5000, 5100);
257 /* If in PDM mode we must use VP for Voltage control */
258 if (cs35l35->pdm_mode)
259 regmap_update_bits(cs35l35->regmap,
260 CS35L35_BST_CVTR_V_CTL,
261 CS35L35_BST_CTL_MASK,
262 0 << CS35L35_BST_CTL_SHIFT);
263
264 regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
265 CS35L35_AMP_MUTE_MASK, 0);
266
267 for (i = 0; i < 2; i++)
268 regmap_bulk_read(cs35l35->regmap, CS35L35_INT_STATUS_1,
269 &reg, ARRAY_SIZE(reg));
270
271 break;
272 case SND_SOC_DAPM_PRE_PMD:
273 regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
274 CS35L35_AMP_MUTE_MASK,
275 1 << CS35L35_AMP_MUTE_SHIFT);
276 if (cs35l35->pdata.bst_pdn_fet_on)
277 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
278 CS35L35_PDN_BST_MASK,
279 1 << CS35L35_PDN_BST_FETON_SHIFT);
280 else
281 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
282 CS35L35_PDN_BST_MASK,
283 1 << CS35L35_PDN_BST_FETOFF_SHIFT);
284 break;
285 case SND_SOC_DAPM_POST_PMD:
286 usleep_range(5000, 5100);
287 /*
288 * If PDM mode we should switch back to pdata value
289 * for Voltage control when we go down
290 */
291 if (cs35l35->pdm_mode)
292 regmap_update_bits(cs35l35->regmap,
293 CS35L35_BST_CVTR_V_CTL,
294 CS35L35_BST_CTL_MASK,
295 cs35l35->pdata.bst_vctl
296 << CS35L35_BST_CTL_SHIFT);
297
298 break;
299 default:
300 dev_err(component->dev, "Invalid event = 0x%x\n", event);
301 }
302 return 0;
303 }
304
305 static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 0, 1, 1);
306 static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10200, 50, 0);
307
308 static const struct snd_kcontrol_new cs35l35_aud_controls[] = {
309 SOC_SINGLE_SX_TLV("Digital Audio Volume", CS35L35_AMP_DIG_VOL,
310 0, 0x34, 0xE4, dig_vol_tlv),
311 SOC_SINGLE_TLV("Analog Audio Volume", CS35L35_AMP_GAIN_AUD_CTL, 0, 19, 0,
312 amp_gain_tlv),
313 SOC_SINGLE_TLV("PDM Volume", CS35L35_AMP_GAIN_PDM_CTL, 0, 19, 0,
314 amp_gain_tlv),
315 };
316
317 static const struct snd_kcontrol_new cs35l35_adv_controls[] = {
318 SOC_SINGLE_SX_TLV("Digital Advisory Volume", CS35L35_ADV_DIG_VOL,
319 0, 0x34, 0xE4, dig_vol_tlv),
320 SOC_SINGLE_TLV("Analog Advisory Volume", CS35L35_AMP_GAIN_ADV_CTL, 0, 19, 0,
321 amp_gain_tlv),
322 };
323
324 static const struct snd_soc_dapm_widget cs35l35_dapm_widgets[] = {
325 SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L35_PWRCTL3, 1, 1,
326 cs35l35_sdin_event, SND_SOC_DAPM_PRE_PMU |
327 SND_SOC_DAPM_POST_PMD),
328 SND_SOC_DAPM_AIF_OUT("SDOUT", NULL, 0, CS35L35_PWRCTL3, 2, 1),
329
330 SND_SOC_DAPM_OUTPUT("SPK"),
331
332 SND_SOC_DAPM_INPUT("VP"),
333 SND_SOC_DAPM_INPUT("VBST"),
334 SND_SOC_DAPM_INPUT("ISENSE"),
335 SND_SOC_DAPM_INPUT("VSENSE"),
336
337 SND_SOC_DAPM_ADC("VMON ADC", NULL, CS35L35_PWRCTL2, 7, 1),
338 SND_SOC_DAPM_ADC("IMON ADC", NULL, CS35L35_PWRCTL2, 6, 1),
339 SND_SOC_DAPM_ADC("VPMON ADC", NULL, CS35L35_PWRCTL3, 3, 1),
340 SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, CS35L35_PWRCTL3, 4, 1),
341 SND_SOC_DAPM_ADC("CLASS H", NULL, CS35L35_PWRCTL2, 5, 1),
342
343 SND_SOC_DAPM_OUT_DRV_E("Main AMP", CS35L35_PWRCTL2, 0, 1, NULL, 0,
344 cs35l35_main_amp_event, SND_SOC_DAPM_PRE_PMU |
345 SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU |
346 SND_SOC_DAPM_PRE_PMD),
347 };
348
349 static const struct snd_soc_dapm_route cs35l35_audio_map[] = {
350 {"VPMON ADC", NULL, "VP"},
351 {"VBSTMON ADC", NULL, "VBST"},
352 {"IMON ADC", NULL, "ISENSE"},
353 {"VMON ADC", NULL, "VSENSE"},
354 {"SDOUT", NULL, "IMON ADC"},
355 {"SDOUT", NULL, "VMON ADC"},
356 {"SDOUT", NULL, "VBSTMON ADC"},
357 {"SDOUT", NULL, "VPMON ADC"},
358 {"AMP Capture", NULL, "SDOUT"},
359
360 {"SDIN", NULL, "AMP Playback"},
361 {"CLASS H", NULL, "SDIN"},
362 {"Main AMP", NULL, "CLASS H"},
363 {"SPK", NULL, "Main AMP"},
364 };
365
366 static int cs35l35_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
367 {
368 struct snd_soc_component *component = codec_dai->component;
369 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
370
371 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
372 case SND_SOC_DAIFMT_CBM_CFM:
373 regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
374 CS35L35_MS_MASK, 1 << CS35L35_MS_SHIFT);
375 cs35l35->slave_mode = false;
376 break;
377 case SND_SOC_DAIFMT_CBS_CFS:
378 regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
379 CS35L35_MS_MASK, 0 << CS35L35_MS_SHIFT);
380 cs35l35->slave_mode = true;
381 break;
382 default:
383 return -EINVAL;
384 }
385
386 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
387 case SND_SOC_DAIFMT_I2S:
388 cs35l35->i2s_mode = true;
389 cs35l35->pdm_mode = false;
390 break;
391 case SND_SOC_DAIFMT_PDM:
392 cs35l35->pdm_mode = true;
393 cs35l35->i2s_mode = false;
394 break;
395 default:
396 return -EINVAL;
397 }
398
399 return 0;
400 }
401
402 struct cs35l35_sysclk_config {
403 int sysclk;
404 int srate;
405 u8 clk_cfg;
406 };
407
408 static struct cs35l35_sysclk_config cs35l35_clk_ctl[] = {
409
410 /* SYSCLK, Sample Rate, Serial Port Cfg */
411 {5644800, 44100, 0x00},
412 {5644800, 88200, 0x40},
413 {6144000, 48000, 0x10},
414 {6144000, 96000, 0x50},
415 {11289600, 44100, 0x01},
416 {11289600, 88200, 0x41},
417 {11289600, 176400, 0x81},
418 {12000000, 44100, 0x03},
419 {12000000, 48000, 0x13},
420 {12000000, 88200, 0x43},
421 {12000000, 96000, 0x53},
422 {12000000, 176400, 0x83},
423 {12000000, 192000, 0x93},
424 {12288000, 48000, 0x11},
425 {12288000, 96000, 0x51},
426 {12288000, 192000, 0x91},
427 {13000000, 44100, 0x07},
428 {13000000, 48000, 0x17},
429 {13000000, 88200, 0x47},
430 {13000000, 96000, 0x57},
431 {13000000, 176400, 0x87},
432 {13000000, 192000, 0x97},
433 {22579200, 44100, 0x02},
434 {22579200, 88200, 0x42},
435 {22579200, 176400, 0x82},
436 {24000000, 44100, 0x0B},
437 {24000000, 48000, 0x1B},
438 {24000000, 88200, 0x4B},
439 {24000000, 96000, 0x5B},
440 {24000000, 176400, 0x8B},
441 {24000000, 192000, 0x9B},
442 {24576000, 48000, 0x12},
443 {24576000, 96000, 0x52},
444 {24576000, 192000, 0x92},
445 {26000000, 44100, 0x0F},
446 {26000000, 48000, 0x1F},
447 {26000000, 88200, 0x4F},
448 {26000000, 96000, 0x5F},
449 {26000000, 176400, 0x8F},
450 {26000000, 192000, 0x9F},
451 };
452
453 static int cs35l35_get_clk_config(int sysclk, int srate)
454 {
455 int i;
456
457 for (i = 0; i < ARRAY_SIZE(cs35l35_clk_ctl); i++) {
458 if (cs35l35_clk_ctl[i].sysclk == sysclk &&
459 cs35l35_clk_ctl[i].srate == srate)
460 return cs35l35_clk_ctl[i].clk_cfg;
461 }
462 return -EINVAL;
463 }
464
465 static int cs35l35_hw_params(struct snd_pcm_substream *substream,
466 struct snd_pcm_hw_params *params,
467 struct snd_soc_dai *dai)
468 {
469 struct snd_soc_component *component = dai->component;
470 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
471 struct classh_cfg *classh = &cs35l35->pdata.classh_algo;
472 int srate = params_rate(params);
473 int ret = 0;
474 u8 sp_sclks;
475 int audin_format;
476 int errata_chk;
477
478 int clk_ctl = cs35l35_get_clk_config(cs35l35->sysclk, srate);
479
480 if (clk_ctl < 0) {
481 dev_err(component->dev, "Invalid CLK:Rate %d:%d\n",
482 cs35l35->sysclk, srate);
483 return -EINVAL;
484 }
485
486 ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL2,
487 CS35L35_CLK_CTL2_MASK, clk_ctl);
488 if (ret != 0) {
489 dev_err(component->dev, "Failed to set port config %d\n", ret);
490 return ret;
491 }
492
493 /*
494 * Rev A0 Errata
495 * When configured for the weak-drive detection path (CH_WKFET_DIS = 0)
496 * the Class H algorithm does not enable weak-drive operation for
497 * nonzero values of CH_WKFET_DELAY if SP_RATE = 01 or 10
498 */
499 errata_chk = clk_ctl & CS35L35_SP_RATE_MASK;
500
501 if (classh->classh_wk_fet_disable == 0x00 &&
502 (errata_chk == 0x01 || errata_chk == 0x03)) {
503 ret = regmap_update_bits(cs35l35->regmap,
504 CS35L35_CLASS_H_FET_DRIVE_CTL,
505 CS35L35_CH_WKFET_DEL_MASK,
506 0 << CS35L35_CH_WKFET_DEL_SHIFT);
507 if (ret != 0) {
508 dev_err(component->dev, "Failed to set fet config %d\n",
509 ret);
510 return ret;
511 }
512 }
513
514 /*
515 * You can pull more Monitor data from the SDOUT pin than going to SDIN
516 * Just make sure your SCLK is fast enough to fill the frame
517 */
518 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
519 switch (params_width(params)) {
520 case 8:
521 audin_format = CS35L35_SDIN_DEPTH_8;
522 break;
523 case 16:
524 audin_format = CS35L35_SDIN_DEPTH_16;
525 break;
526 case 24:
527 audin_format = CS35L35_SDIN_DEPTH_24;
528 break;
529 default:
530 dev_err(component->dev, "Unsupported Width %d\n",
531 params_width(params));
532 return -EINVAL;
533 }
534 regmap_update_bits(cs35l35->regmap,
535 CS35L35_AUDIN_DEPTH_CTL,
536 CS35L35_AUDIN_DEPTH_MASK,
537 audin_format <<
538 CS35L35_AUDIN_DEPTH_SHIFT);
539 if (cs35l35->pdata.stereo) {
540 regmap_update_bits(cs35l35->regmap,
541 CS35L35_AUDIN_DEPTH_CTL,
542 CS35L35_ADVIN_DEPTH_MASK,
543 audin_format <<
544 CS35L35_ADVIN_DEPTH_SHIFT);
545 }
546 }
547
548 if (cs35l35->i2s_mode) {
549 /* We have to take the SCLK to derive num sclks
550 * to configure the CLOCK_CTL3 register correctly
551 */
552 if ((cs35l35->sclk / srate) % 4) {
553 dev_err(component->dev, "Unsupported sclk/fs ratio %d:%d\n",
554 cs35l35->sclk, srate);
555 return -EINVAL;
556 }
557 sp_sclks = ((cs35l35->sclk / srate) / 4) - 1;
558
559 /* Only certain ratios are supported in I2S Slave Mode */
560 if (cs35l35->slave_mode) {
561 switch (sp_sclks) {
562 case CS35L35_SP_SCLKS_32FS:
563 case CS35L35_SP_SCLKS_48FS:
564 case CS35L35_SP_SCLKS_64FS:
565 break;
566 default:
567 dev_err(component->dev, "ratio not supported\n");
568 return -EINVAL;
569 }
570 } else {
571 /* Only certain ratios supported in I2S MASTER Mode */
572 switch (sp_sclks) {
573 case CS35L35_SP_SCLKS_32FS:
574 case CS35L35_SP_SCLKS_64FS:
575 break;
576 default:
577 dev_err(component->dev, "ratio not supported\n");
578 return -EINVAL;
579 }
580 }
581 ret = regmap_update_bits(cs35l35->regmap,
582 CS35L35_CLK_CTL3,
583 CS35L35_SP_SCLKS_MASK, sp_sclks <<
584 CS35L35_SP_SCLKS_SHIFT);
585 if (ret != 0) {
586 dev_err(component->dev, "Failed to set fsclk %d\n", ret);
587 return ret;
588 }
589 }
590
591 return ret;
592 }
593
594 static const unsigned int cs35l35_src_rates[] = {
595 44100, 48000, 88200, 96000, 176400, 192000
596 };
597
598 static const struct snd_pcm_hw_constraint_list cs35l35_constraints = {
599 .count = ARRAY_SIZE(cs35l35_src_rates),
600 .list = cs35l35_src_rates,
601 };
602
603 static int cs35l35_pcm_startup(struct snd_pcm_substream *substream,
604 struct snd_soc_dai *dai)
605 {
606 struct snd_soc_component *component = dai->component;
607 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
608
609 if (!substream->runtime)
610 return 0;
611
612 snd_pcm_hw_constraint_list(substream->runtime, 0,
613 SNDRV_PCM_HW_PARAM_RATE, &cs35l35_constraints);
614
615 regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL,
616 CS35L35_PDM_MODE_MASK,
617 0 << CS35L35_PDM_MODE_SHIFT);
618
619 return 0;
620 }
621
622 static const unsigned int cs35l35_pdm_rates[] = {
623 44100, 48000, 88200, 96000
624 };
625
626 static const struct snd_pcm_hw_constraint_list cs35l35_pdm_constraints = {
627 .count = ARRAY_SIZE(cs35l35_pdm_rates),
628 .list = cs35l35_pdm_rates,
629 };
630
631 static int cs35l35_pdm_startup(struct snd_pcm_substream *substream,
632 struct snd_soc_dai *dai)
633 {
634 struct snd_soc_component *component = dai->component;
635 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
636
637 if (!substream->runtime)
638 return 0;
639
640 snd_pcm_hw_constraint_list(substream->runtime, 0,
641 SNDRV_PCM_HW_PARAM_RATE,
642 &cs35l35_pdm_constraints);
643
644 regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL,
645 CS35L35_PDM_MODE_MASK,
646 1 << CS35L35_PDM_MODE_SHIFT);
647
648 return 0;
649 }
650
651 static int cs35l35_dai_set_sysclk(struct snd_soc_dai *dai,
652 int clk_id, unsigned int freq, int dir)
653 {
654 struct snd_soc_component *component = dai->component;
655 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
656
657 /* Need the SCLK Frequency regardless of sysclk source for I2S */
658 cs35l35->sclk = freq;
659
660 return 0;
661 }
662
663 static const struct snd_soc_dai_ops cs35l35_ops = {
664 .startup = cs35l35_pcm_startup,
665 .set_fmt = cs35l35_set_dai_fmt,
666 .hw_params = cs35l35_hw_params,
667 .set_sysclk = cs35l35_dai_set_sysclk,
668 };
669
670 static const struct snd_soc_dai_ops cs35l35_pdm_ops = {
671 .startup = cs35l35_pdm_startup,
672 .set_fmt = cs35l35_set_dai_fmt,
673 .hw_params = cs35l35_hw_params,
674 };
675
676 static struct snd_soc_dai_driver cs35l35_dai[] = {
677 {
678 .name = "cs35l35-pcm",
679 .id = 0,
680 .playback = {
681 .stream_name = "AMP Playback",
682 .channels_min = 1,
683 .channels_max = 8,
684 .rates = SNDRV_PCM_RATE_KNOT,
685 .formats = CS35L35_FORMATS,
686 },
687 .capture = {
688 .stream_name = "AMP Capture",
689 .channels_min = 1,
690 .channels_max = 8,
691 .rates = SNDRV_PCM_RATE_KNOT,
692 .formats = CS35L35_FORMATS,
693 },
694 .ops = &cs35l35_ops,
695 .symmetric_rates = 1,
696 },
697 {
698 .name = "cs35l35-pdm",
699 .id = 1,
700 .playback = {
701 .stream_name = "PDM Playback",
702 .channels_min = 1,
703 .channels_max = 2,
704 .rates = SNDRV_PCM_RATE_KNOT,
705 .formats = CS35L35_FORMATS,
706 },
707 .ops = &cs35l35_pdm_ops,
708 },
709 };
710
711 static int cs35l35_component_set_sysclk(struct snd_soc_component *component,
712 int clk_id, int source, unsigned int freq,
713 int dir)
714 {
715 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
716 int clksrc;
717 int ret = 0;
718
719 switch (clk_id) {
720 case 0:
721 clksrc = CS35L35_CLK_SOURCE_MCLK;
722 break;
723 case 1:
724 clksrc = CS35L35_CLK_SOURCE_SCLK;
725 break;
726 case 2:
727 clksrc = CS35L35_CLK_SOURCE_PDM;
728 break;
729 default:
730 dev_err(component->dev, "Invalid CLK Source\n");
731 return -EINVAL;
732 }
733
734 switch (freq) {
735 case 5644800:
736 case 6144000:
737 case 11289600:
738 case 12000000:
739 case 12288000:
740 case 13000000:
741 case 22579200:
742 case 24000000:
743 case 24576000:
744 case 26000000:
745 cs35l35->sysclk = freq;
746 break;
747 default:
748 dev_err(component->dev, "Invalid CLK Frequency Input : %d\n", freq);
749 return -EINVAL;
750 }
751
752 ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
753 CS35L35_CLK_SOURCE_MASK,
754 clksrc << CS35L35_CLK_SOURCE_SHIFT);
755 if (ret != 0) {
756 dev_err(component->dev, "Failed to set sysclk %d\n", ret);
757 return ret;
758 }
759
760 return ret;
761 }
762
763 static int cs35l35_boost_inductor(struct cs35l35_private *cs35l35,
764 int inductor)
765 {
766 struct regmap *regmap = cs35l35->regmap;
767 unsigned int bst_ipk = 0;
768
769 /*
770 * Digital Boost Converter Configuration for feedback,
771 * ramping, switching frequency, and estimation block seeding.
772 */
773
774 regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
775 CS35L35_BST_CONV_SWFREQ_MASK, 0x00);
776
777 regmap_read(regmap, CS35L35_BST_PEAK_I, &bst_ipk);
778 bst_ipk &= CS35L35_BST_IPK_MASK;
779
780 switch (inductor) {
781 case 1000: /* 1 uH */
782 regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x24);
783 regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x24);
784 regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
785 CS35L35_BST_CONV_LBST_MASK, 0x00);
786
787 if (bst_ipk < 0x04)
788 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
789 else
790 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x4E);
791 break;
792 case 1200: /* 1.2 uH */
793 regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
794 regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
795 regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
796 CS35L35_BST_CONV_LBST_MASK, 0x01);
797
798 if (bst_ipk < 0x04)
799 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
800 else
801 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x47);
802 break;
803 case 1500: /* 1.5uH */
804 regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
805 regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
806 regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
807 CS35L35_BST_CONV_LBST_MASK, 0x02);
808
809 if (bst_ipk < 0x04)
810 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
811 else
812 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x3C);
813 break;
814 case 2200: /* 2.2uH */
815 regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x19);
816 regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x25);
817 regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
818 CS35L35_BST_CONV_LBST_MASK, 0x03);
819
820 if (bst_ipk < 0x04)
821 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
822 else
823 regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x23);
824 break;
825 default:
826 dev_err(cs35l35->dev, "Invalid Inductor Value %d uH\n",
827 inductor);
828 return -EINVAL;
829 }
830 return 0;
831 }
832
833 static int cs35l35_component_probe(struct snd_soc_component *component)
834 {
835 struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component);
836 struct classh_cfg *classh = &cs35l35->pdata.classh_algo;
837 struct monitor_cfg *monitor_config = &cs35l35->pdata.mon_cfg;
838 int ret;
839
840 /* Set Platform Data */
841 if (cs35l35->pdata.bst_vctl)
842 regmap_update_bits(cs35l35->regmap, CS35L35_BST_CVTR_V_CTL,
843 CS35L35_BST_CTL_MASK,
844 cs35l35->pdata.bst_vctl);
845
846 if (cs35l35->pdata.bst_ipk)
847 regmap_update_bits(cs35l35->regmap, CS35L35_BST_PEAK_I,
848 CS35L35_BST_IPK_MASK,
849 cs35l35->pdata.bst_ipk <<
850 CS35L35_BST_IPK_SHIFT);
851
852 ret = cs35l35_boost_inductor(cs35l35, cs35l35->pdata.boost_ind);
853 if (ret)
854 return ret;
855
856 if (cs35l35->pdata.gain_zc)
857 regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
858 CS35L35_AMP_GAIN_ZC_MASK,
859 cs35l35->pdata.gain_zc <<
860 CS35L35_AMP_GAIN_ZC_SHIFT);
861
862 if (cs35l35->pdata.aud_channel)
863 regmap_update_bits(cs35l35->regmap,
864 CS35L35_AUDIN_RXLOC_CTL,
865 CS35L35_AUD_IN_LR_MASK,
866 cs35l35->pdata.aud_channel <<
867 CS35L35_AUD_IN_LR_SHIFT);
868
869 if (cs35l35->pdata.stereo) {
870 regmap_update_bits(cs35l35->regmap,
871 CS35L35_ADVIN_RXLOC_CTL,
872 CS35L35_ADV_IN_LR_MASK,
873 cs35l35->pdata.adv_channel <<
874 CS35L35_ADV_IN_LR_SHIFT);
875 if (cs35l35->pdata.shared_bst)
876 regmap_update_bits(cs35l35->regmap, CS35L35_CLASS_H_CTL,
877 CS35L35_CH_STEREO_MASK,
878 1 << CS35L35_CH_STEREO_SHIFT);
879 ret = snd_soc_add_component_controls(component, cs35l35_adv_controls,
880 ARRAY_SIZE(cs35l35_adv_controls));
881 if (ret)
882 return ret;
883 }
884
885 if (cs35l35->pdata.sp_drv_str)
886 regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
887 CS35L35_SP_DRV_MASK,
888 cs35l35->pdata.sp_drv_str <<
889 CS35L35_SP_DRV_SHIFT);
890 if (cs35l35->pdata.sp_drv_unused)
891 regmap_update_bits(cs35l35->regmap, CS35L35_SP_FMT_CTL3,
892 CS35L35_SP_I2S_DRV_MASK,
893 cs35l35->pdata.sp_drv_unused <<
894 CS35L35_SP_I2S_DRV_SHIFT);
895
896 if (classh->classh_algo_enable) {
897 if (classh->classh_bst_override)
898 regmap_update_bits(cs35l35->regmap,
899 CS35L35_CLASS_H_CTL,
900 CS35L35_CH_BST_OVR_MASK,
901 classh->classh_bst_override <<
902 CS35L35_CH_BST_OVR_SHIFT);
903 if (classh->classh_bst_max_limit)
904 regmap_update_bits(cs35l35->regmap,
905 CS35L35_CLASS_H_CTL,
906 CS35L35_CH_BST_LIM_MASK,
907 classh->classh_bst_max_limit <<
908 CS35L35_CH_BST_LIM_SHIFT);
909 if (classh->classh_mem_depth)
910 regmap_update_bits(cs35l35->regmap,
911 CS35L35_CLASS_H_CTL,
912 CS35L35_CH_MEM_DEPTH_MASK,
913 classh->classh_mem_depth <<
914 CS35L35_CH_MEM_DEPTH_SHIFT);
915 if (classh->classh_headroom)
916 regmap_update_bits(cs35l35->regmap,
917 CS35L35_CLASS_H_HEADRM_CTL,
918 CS35L35_CH_HDRM_CTL_MASK,
919 classh->classh_headroom <<
920 CS35L35_CH_HDRM_CTL_SHIFT);
921 if (classh->classh_release_rate)
922 regmap_update_bits(cs35l35->regmap,
923 CS35L35_CLASS_H_RELEASE_RATE,
924 CS35L35_CH_REL_RATE_MASK,
925 classh->classh_release_rate <<
926 CS35L35_CH_REL_RATE_SHIFT);
927 if (classh->classh_wk_fet_disable)
928 regmap_update_bits(cs35l35->regmap,
929 CS35L35_CLASS_H_FET_DRIVE_CTL,
930 CS35L35_CH_WKFET_DIS_MASK,
931 classh->classh_wk_fet_disable <<
932 CS35L35_CH_WKFET_DIS_SHIFT);
933 if (classh->classh_wk_fet_delay)
934 regmap_update_bits(cs35l35->regmap,
935 CS35L35_CLASS_H_FET_DRIVE_CTL,
936 CS35L35_CH_WKFET_DEL_MASK,
937 classh->classh_wk_fet_delay <<
938 CS35L35_CH_WKFET_DEL_SHIFT);
939 if (classh->classh_wk_fet_thld)
940 regmap_update_bits(cs35l35->regmap,
941 CS35L35_CLASS_H_FET_DRIVE_CTL,
942 CS35L35_CH_WKFET_THLD_MASK,
943 classh->classh_wk_fet_thld <<
944 CS35L35_CH_WKFET_THLD_SHIFT);
945 if (classh->classh_vpch_auto)
946 regmap_update_bits(cs35l35->regmap,
947 CS35L35_CLASS_H_VP_CTL,
948 CS35L35_CH_VP_AUTO_MASK,
949 classh->classh_vpch_auto <<
950 CS35L35_CH_VP_AUTO_SHIFT);
951 if (classh->classh_vpch_rate)
952 regmap_update_bits(cs35l35->regmap,
953 CS35L35_CLASS_H_VP_CTL,
954 CS35L35_CH_VP_RATE_MASK,
955 classh->classh_vpch_rate <<
956 CS35L35_CH_VP_RATE_SHIFT);
957 if (classh->classh_vpch_man)
958 regmap_update_bits(cs35l35->regmap,
959 CS35L35_CLASS_H_VP_CTL,
960 CS35L35_CH_VP_MAN_MASK,
961 classh->classh_vpch_man <<
962 CS35L35_CH_VP_MAN_SHIFT);
963 }
964
965 if (monitor_config->is_present) {
966 if (monitor_config->vmon_specs) {
967 regmap_update_bits(cs35l35->regmap,
968 CS35L35_SPKMON_DEPTH_CTL,
969 CS35L35_VMON_DEPTH_MASK,
970 monitor_config->vmon_dpth <<
971 CS35L35_VMON_DEPTH_SHIFT);
972 regmap_update_bits(cs35l35->regmap,
973 CS35L35_VMON_TXLOC_CTL,
974 CS35L35_MON_TXLOC_MASK,
975 monitor_config->vmon_loc <<
976 CS35L35_MON_TXLOC_SHIFT);
977 regmap_update_bits(cs35l35->regmap,
978 CS35L35_VMON_TXLOC_CTL,
979 CS35L35_MON_FRM_MASK,
980 monitor_config->vmon_frm <<
981 CS35L35_MON_FRM_SHIFT);
982 }
983 if (monitor_config->imon_specs) {
984 regmap_update_bits(cs35l35->regmap,
985 CS35L35_SPKMON_DEPTH_CTL,
986 CS35L35_IMON_DEPTH_MASK,
987 monitor_config->imon_dpth <<
988 CS35L35_IMON_DEPTH_SHIFT);
989 regmap_update_bits(cs35l35->regmap,
990 CS35L35_IMON_TXLOC_CTL,
991 CS35L35_MON_TXLOC_MASK,
992 monitor_config->imon_loc <<
993 CS35L35_MON_TXLOC_SHIFT);
994 regmap_update_bits(cs35l35->regmap,
995 CS35L35_IMON_TXLOC_CTL,
996 CS35L35_MON_FRM_MASK,
997 monitor_config->imon_frm <<
998 CS35L35_MON_FRM_SHIFT);
999 regmap_update_bits(cs35l35->regmap,
1000 CS35L35_IMON_SCALE_CTL,
1001 CS35L35_IMON_SCALE_MASK,
1002 monitor_config->imon_scale <<
1003 CS35L35_IMON_SCALE_SHIFT);
1004 }
1005 if (monitor_config->vpmon_specs) {
1006 regmap_update_bits(cs35l35->regmap,
1007 CS35L35_SUPMON_DEPTH_CTL,
1008 CS35L35_VPMON_DEPTH_MASK,
1009 monitor_config->vpmon_dpth <<
1010 CS35L35_VPMON_DEPTH_SHIFT);
1011 regmap_update_bits(cs35l35->regmap,
1012 CS35L35_VPMON_TXLOC_CTL,
1013 CS35L35_MON_TXLOC_MASK,
1014 monitor_config->vpmon_loc <<
1015 CS35L35_MON_TXLOC_SHIFT);
1016 regmap_update_bits(cs35l35->regmap,
1017 CS35L35_VPMON_TXLOC_CTL,
1018 CS35L35_MON_FRM_MASK,
1019 monitor_config->vpmon_frm <<
1020 CS35L35_MON_FRM_SHIFT);
1021 }
1022 if (monitor_config->vbstmon_specs) {
1023 regmap_update_bits(cs35l35->regmap,
1024 CS35L35_SUPMON_DEPTH_CTL,
1025 CS35L35_VBSTMON_DEPTH_MASK,
1026 monitor_config->vpmon_dpth <<
1027 CS35L35_VBSTMON_DEPTH_SHIFT);
1028 regmap_update_bits(cs35l35->regmap,
1029 CS35L35_VBSTMON_TXLOC_CTL,
1030 CS35L35_MON_TXLOC_MASK,
1031 monitor_config->vbstmon_loc <<
1032 CS35L35_MON_TXLOC_SHIFT);
1033 regmap_update_bits(cs35l35->regmap,
1034 CS35L35_VBSTMON_TXLOC_CTL,
1035 CS35L35_MON_FRM_MASK,
1036 monitor_config->vbstmon_frm <<
1037 CS35L35_MON_FRM_SHIFT);
1038 }
1039 if (monitor_config->vpbrstat_specs) {
1040 regmap_update_bits(cs35l35->regmap,
1041 CS35L35_SUPMON_DEPTH_CTL,
1042 CS35L35_VPBRSTAT_DEPTH_MASK,
1043 monitor_config->vpbrstat_dpth <<
1044 CS35L35_VPBRSTAT_DEPTH_SHIFT);
1045 regmap_update_bits(cs35l35->regmap,
1046 CS35L35_VPBR_STATUS_TXLOC_CTL,
1047 CS35L35_MON_TXLOC_MASK,
1048 monitor_config->vpbrstat_loc <<
1049 CS35L35_MON_TXLOC_SHIFT);
1050 regmap_update_bits(cs35l35->regmap,
1051 CS35L35_VPBR_STATUS_TXLOC_CTL,
1052 CS35L35_MON_FRM_MASK,
1053 monitor_config->vpbrstat_frm <<
1054 CS35L35_MON_FRM_SHIFT);
1055 }
1056 if (monitor_config->zerofill_specs) {
1057 regmap_update_bits(cs35l35->regmap,
1058 CS35L35_SUPMON_DEPTH_CTL,
1059 CS35L35_ZEROFILL_DEPTH_MASK,
1060 monitor_config->zerofill_dpth <<
1061 CS35L35_ZEROFILL_DEPTH_SHIFT);
1062 regmap_update_bits(cs35l35->regmap,
1063 CS35L35_ZERO_FILL_LOC_CTL,
1064 CS35L35_MON_TXLOC_MASK,
1065 monitor_config->zerofill_loc <<
1066 CS35L35_MON_TXLOC_SHIFT);
1067 regmap_update_bits(cs35l35->regmap,
1068 CS35L35_ZERO_FILL_LOC_CTL,
1069 CS35L35_MON_FRM_MASK,
1070 monitor_config->zerofill_frm <<
1071 CS35L35_MON_FRM_SHIFT);
1072 }
1073 }
1074
1075 return 0;
1076 }
1077
1078 static const struct snd_soc_component_driver soc_component_dev_cs35l35 = {
1079 .probe = cs35l35_component_probe,
1080 .set_sysclk = cs35l35_component_set_sysclk,
1081 .dapm_widgets = cs35l35_dapm_widgets,
1082 .num_dapm_widgets = ARRAY_SIZE(cs35l35_dapm_widgets),
1083 .dapm_routes = cs35l35_audio_map,
1084 .num_dapm_routes = ARRAY_SIZE(cs35l35_audio_map),
1085 .controls = cs35l35_aud_controls,
1086 .num_controls = ARRAY_SIZE(cs35l35_aud_controls),
1087 .idle_bias_on = 1,
1088 .use_pmdown_time = 1,
1089 .endianness = 1,
1090 .non_legacy_dai_naming = 1,
1091 };
1092
1093 static struct regmap_config cs35l35_regmap = {
1094 .reg_bits = 8,
1095 .val_bits = 8,
1096
1097 .max_register = CS35L35_MAX_REGISTER,
1098 .reg_defaults = cs35l35_reg,
1099 .num_reg_defaults = ARRAY_SIZE(cs35l35_reg),
1100 .volatile_reg = cs35l35_volatile_register,
1101 .readable_reg = cs35l35_readable_register,
1102 .precious_reg = cs35l35_precious_register,
1103 .cache_type = REGCACHE_RBTREE,
1104 .use_single_read = true,
1105 .use_single_write = true,
1106 };
1107
1108 static irqreturn_t cs35l35_irq(int irq, void *data)
1109 {
1110 struct cs35l35_private *cs35l35 = data;
1111 unsigned int sticky1, sticky2, sticky3, sticky4;
1112 unsigned int mask1, mask2, mask3, mask4, current1;
1113
1114 /* ack the irq by reading all status registers */
1115 regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_4, &sticky4);
1116 regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_3, &sticky3);
1117 regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_2, &sticky2);
1118 regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, &sticky1);
1119
1120 regmap_read(cs35l35->regmap, CS35L35_INT_MASK_4, &mask4);
1121 regmap_read(cs35l35->regmap, CS35L35_INT_MASK_3, &mask3);
1122 regmap_read(cs35l35->regmap, CS35L35_INT_MASK_2, &mask2);
1123 regmap_read(cs35l35->regmap, CS35L35_INT_MASK_1, &mask1);
1124
1125 /* Check to see if unmasked bits are active */
1126 if (!(sticky1 & ~mask1) && !(sticky2 & ~mask2) && !(sticky3 & ~mask3)
1127 && !(sticky4 & ~mask4))
1128 return IRQ_NONE;
1129
1130 if (sticky2 & CS35L35_PDN_DONE)
1131 complete(&cs35l35->pdn_done);
1132
1133 /* read the current values */
1134 regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, &current1);
1135
1136 /* handle the interrupts */
1137 if (sticky1 & CS35L35_CAL_ERR) {
1138 dev_crit(cs35l35->dev, "Calibration Error\n");
1139
1140 /* error is no longer asserted; safe to reset */
1141 if (!(current1 & CS35L35_CAL_ERR)) {
1142 pr_debug("%s : Cal error release\n", __func__);
1143 regmap_update_bits(cs35l35->regmap,
1144 CS35L35_PROT_RELEASE_CTL,
1145 CS35L35_CAL_ERR_RLS, 0);
1146 regmap_update_bits(cs35l35->regmap,
1147 CS35L35_PROT_RELEASE_CTL,
1148 CS35L35_CAL_ERR_RLS,
1149 CS35L35_CAL_ERR_RLS);
1150 regmap_update_bits(cs35l35->regmap,
1151 CS35L35_PROT_RELEASE_CTL,
1152 CS35L35_CAL_ERR_RLS, 0);
1153 }
1154 }
1155
1156 if (sticky1 & CS35L35_AMP_SHORT) {
1157 dev_crit(cs35l35->dev, "AMP Short Error\n");
1158 /* error is no longer asserted; safe to reset */
1159 if (!(current1 & CS35L35_AMP_SHORT)) {
1160 dev_dbg(cs35l35->dev, "Amp short error release\n");
1161 regmap_update_bits(cs35l35->regmap,
1162 CS35L35_PROT_RELEASE_CTL,
1163 CS35L35_SHORT_RLS, 0);
1164 regmap_update_bits(cs35l35->regmap,
1165 CS35L35_PROT_RELEASE_CTL,
1166 CS35L35_SHORT_RLS,
1167 CS35L35_SHORT_RLS);
1168 regmap_update_bits(cs35l35->regmap,
1169 CS35L35_PROT_RELEASE_CTL,
1170 CS35L35_SHORT_RLS, 0);
1171 }
1172 }
1173
1174 if (sticky1 & CS35L35_OTW) {
1175 dev_warn(cs35l35->dev, "Over temperature warning\n");
1176
1177 /* error is no longer asserted; safe to reset */
1178 if (!(current1 & CS35L35_OTW)) {
1179 dev_dbg(cs35l35->dev, "Over temperature warn release\n");
1180 regmap_update_bits(cs35l35->regmap,
1181 CS35L35_PROT_RELEASE_CTL,
1182 CS35L35_OTW_RLS, 0);
1183 regmap_update_bits(cs35l35->regmap,
1184 CS35L35_PROT_RELEASE_CTL,
1185 CS35L35_OTW_RLS,
1186 CS35L35_OTW_RLS);
1187 regmap_update_bits(cs35l35->regmap,
1188 CS35L35_PROT_RELEASE_CTL,
1189 CS35L35_OTW_RLS, 0);
1190 }
1191 }
1192
1193 if (sticky1 & CS35L35_OTE) {
1194 dev_crit(cs35l35->dev, "Over temperature error\n");
1195 /* error is no longer asserted; safe to reset */
1196 if (!(current1 & CS35L35_OTE)) {
1197 dev_dbg(cs35l35->dev, "Over temperature error release\n");
1198 regmap_update_bits(cs35l35->regmap,
1199 CS35L35_PROT_RELEASE_CTL,
1200 CS35L35_OTE_RLS, 0);
1201 regmap_update_bits(cs35l35->regmap,
1202 CS35L35_PROT_RELEASE_CTL,
1203 CS35L35_OTE_RLS,
1204 CS35L35_OTE_RLS);
1205 regmap_update_bits(cs35l35->regmap,
1206 CS35L35_PROT_RELEASE_CTL,
1207 CS35L35_OTE_RLS, 0);
1208 }
1209 }
1210
1211 if (sticky3 & CS35L35_BST_HIGH) {
1212 dev_crit(cs35l35->dev, "VBST error: powering off!\n");
1213 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
1214 CS35L35_PDN_AMP, CS35L35_PDN_AMP);
1215 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
1216 CS35L35_PDN_ALL, CS35L35_PDN_ALL);
1217 }
1218
1219 if (sticky3 & CS35L35_LBST_SHORT) {
1220 dev_crit(cs35l35->dev, "LBST error: powering off!\n");
1221 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
1222 CS35L35_PDN_AMP, CS35L35_PDN_AMP);
1223 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
1224 CS35L35_PDN_ALL, CS35L35_PDN_ALL);
1225 }
1226
1227 if (sticky2 & CS35L35_VPBR_ERR)
1228 dev_dbg(cs35l35->dev, "Error: Reactive Brownout\n");
1229
1230 if (sticky4 & CS35L35_VMON_OVFL)
1231 dev_dbg(cs35l35->dev, "Error: VMON overflow\n");
1232
1233 if (sticky4 & CS35L35_IMON_OVFL)
1234 dev_dbg(cs35l35->dev, "Error: IMON overflow\n");
1235
1236 return IRQ_HANDLED;
1237 }
1238
1239
1240 static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
1241 struct cs35l35_platform_data *pdata)
1242 {
1243 struct device_node *np = i2c_client->dev.of_node;
1244 struct device_node *classh, *signal_format;
1245 struct classh_cfg *classh_config = &pdata->classh_algo;
1246 struct monitor_cfg *monitor_config = &pdata->mon_cfg;
1247 unsigned int val32 = 0;
1248 u8 monitor_array[4];
1249 const int imon_array_size = ARRAY_SIZE(monitor_array);
1250 const int mon_array_size = imon_array_size - 1;
1251 int ret = 0;
1252
1253 if (!np)
1254 return 0;
1255
1256 pdata->bst_pdn_fet_on = of_property_read_bool(np,
1257 "cirrus,boost-pdn-fet-on");
1258
1259 ret = of_property_read_u32(np, "cirrus,boost-ctl-millivolt", &val32);
1260 if (ret >= 0) {
1261 if (val32 < 2600 || val32 > 9000) {
1262 dev_err(&i2c_client->dev,
1263 "Invalid Boost Voltage %d mV\n", val32);
1264 return -EINVAL;
1265 }
1266 pdata->bst_vctl = ((val32 - 2600) / 100) + 1;
1267 }
1268
1269 ret = of_property_read_u32(np, "cirrus,boost-peak-milliamp", &val32);
1270 if (ret >= 0) {
1271 if (val32 < 1680 || val32 > 4480) {
1272 dev_err(&i2c_client->dev,
1273 "Invalid Boost Peak Current %u mA\n", val32);
1274 return -EINVAL;
1275 }
1276
1277 pdata->bst_ipk = ((val32 - 1680) / 110) | CS35L35_VALID_PDATA;
1278 }
1279
1280 ret = of_property_read_u32(np, "cirrus,boost-ind-nanohenry", &val32);
1281 if (ret >= 0) {
1282 pdata->boost_ind = val32;
1283 } else {
1284 dev_err(&i2c_client->dev, "Inductor not specified.\n");
1285 return -EINVAL;
1286 }
1287
1288 if (of_property_read_u32(np, "cirrus,sp-drv-strength", &val32) >= 0)
1289 pdata->sp_drv_str = val32;
1290 if (of_property_read_u32(np, "cirrus,sp-drv-unused", &val32) >= 0)
1291 pdata->sp_drv_unused = val32 | CS35L35_VALID_PDATA;
1292
1293 pdata->stereo = of_property_read_bool(np, "cirrus,stereo-config");
1294
1295 if (pdata->stereo) {
1296 ret = of_property_read_u32(np, "cirrus,audio-channel", &val32);
1297 if (ret >= 0)
1298 pdata->aud_channel = val32;
1299
1300 ret = of_property_read_u32(np, "cirrus,advisory-channel",
1301 &val32);
1302 if (ret >= 0)
1303 pdata->adv_channel = val32;
1304
1305 pdata->shared_bst = of_property_read_bool(np,
1306 "cirrus,shared-boost");
1307 }
1308
1309 pdata->ext_bst = of_property_read_bool(np, "cirrus,external-boost");
1310
1311 pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc");
1312
1313 classh = of_get_child_by_name(np, "cirrus,classh-internal-algo");
1314 classh_config->classh_algo_enable = classh ? true : false;
1315
1316 if (classh_config->classh_algo_enable) {
1317 classh_config->classh_bst_override =
1318 of_property_read_bool(np, "cirrus,classh-bst-overide");
1319
1320 ret = of_property_read_u32(classh,
1321 "cirrus,classh-bst-max-limit",
1322 &val32);
1323 if (ret >= 0) {
1324 val32 |= CS35L35_VALID_PDATA;
1325 classh_config->classh_bst_max_limit = val32;
1326 }
1327
1328 ret = of_property_read_u32(classh,
1329 "cirrus,classh-bst-max-limit",
1330 &val32);
1331 if (ret >= 0) {
1332 val32 |= CS35L35_VALID_PDATA;
1333 classh_config->classh_bst_max_limit = val32;
1334 }
1335
1336 ret = of_property_read_u32(classh, "cirrus,classh-mem-depth",
1337 &val32);
1338 if (ret >= 0) {
1339 val32 |= CS35L35_VALID_PDATA;
1340 classh_config->classh_mem_depth = val32;
1341 }
1342
1343 ret = of_property_read_u32(classh, "cirrus,classh-release-rate",
1344 &val32);
1345 if (ret >= 0)
1346 classh_config->classh_release_rate = val32;
1347
1348 ret = of_property_read_u32(classh, "cirrus,classh-headroom",
1349 &val32);
1350 if (ret >= 0) {
1351 val32 |= CS35L35_VALID_PDATA;
1352 classh_config->classh_headroom = val32;
1353 }
1354
1355 ret = of_property_read_u32(classh,
1356 "cirrus,classh-wk-fet-disable",
1357 &val32);
1358 if (ret >= 0)
1359 classh_config->classh_wk_fet_disable = val32;
1360
1361 ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-delay",
1362 &val32);
1363 if (ret >= 0) {
1364 val32 |= CS35L35_VALID_PDATA;
1365 classh_config->classh_wk_fet_delay = val32;
1366 }
1367
1368 ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-thld",
1369 &val32);
1370 if (ret >= 0)
1371 classh_config->classh_wk_fet_thld = val32;
1372
1373 ret = of_property_read_u32(classh, "cirrus,classh-vpch-auto",
1374 &val32);
1375 if (ret >= 0) {
1376 val32 |= CS35L35_VALID_PDATA;
1377 classh_config->classh_vpch_auto = val32;
1378 }
1379
1380 ret = of_property_read_u32(classh, "cirrus,classh-vpch-rate",
1381 &val32);
1382 if (ret >= 0) {
1383 val32 |= CS35L35_VALID_PDATA;
1384 classh_config->classh_vpch_rate = val32;
1385 }
1386
1387 ret = of_property_read_u32(classh, "cirrus,classh-vpch-man",
1388 &val32);
1389 if (ret >= 0)
1390 classh_config->classh_vpch_man = val32;
1391 }
1392 of_node_put(classh);
1393
1394 /* frame depth location */
1395 signal_format = of_get_child_by_name(np, "cirrus,monitor-signal-format");
1396 monitor_config->is_present = signal_format ? true : false;
1397 if (monitor_config->is_present) {
1398 ret = of_property_read_u8_array(signal_format, "cirrus,imon",
1399 monitor_array, imon_array_size);
1400 if (!ret) {
1401 monitor_config->imon_specs = true;
1402 monitor_config->imon_dpth = monitor_array[0];
1403 monitor_config->imon_loc = monitor_array[1];
1404 monitor_config->imon_frm = monitor_array[2];
1405 monitor_config->imon_scale = monitor_array[3];
1406 }
1407 ret = of_property_read_u8_array(signal_format, "cirrus,vmon",
1408 monitor_array, mon_array_size);
1409 if (!ret) {
1410 monitor_config->vmon_specs = true;
1411 monitor_config->vmon_dpth = monitor_array[0];
1412 monitor_config->vmon_loc = monitor_array[1];
1413 monitor_config->vmon_frm = monitor_array[2];
1414 }
1415 ret = of_property_read_u8_array(signal_format, "cirrus,vpmon",
1416 monitor_array, mon_array_size);
1417 if (!ret) {
1418 monitor_config->vpmon_specs = true;
1419 monitor_config->vpmon_dpth = monitor_array[0];
1420 monitor_config->vpmon_loc = monitor_array[1];
1421 monitor_config->vpmon_frm = monitor_array[2];
1422 }
1423 ret = of_property_read_u8_array(signal_format, "cirrus,vbstmon",
1424 monitor_array, mon_array_size);
1425 if (!ret) {
1426 monitor_config->vbstmon_specs = true;
1427 monitor_config->vbstmon_dpth = monitor_array[0];
1428 monitor_config->vbstmon_loc = monitor_array[1];
1429 monitor_config->vbstmon_frm = monitor_array[2];
1430 }
1431 ret = of_property_read_u8_array(signal_format, "cirrus,vpbrstat",
1432 monitor_array, mon_array_size);
1433 if (!ret) {
1434 monitor_config->vpbrstat_specs = true;
1435 monitor_config->vpbrstat_dpth = monitor_array[0];
1436 monitor_config->vpbrstat_loc = monitor_array[1];
1437 monitor_config->vpbrstat_frm = monitor_array[2];
1438 }
1439 ret = of_property_read_u8_array(signal_format, "cirrus,zerofill",
1440 monitor_array, mon_array_size);
1441 if (!ret) {
1442 monitor_config->zerofill_specs = true;
1443 monitor_config->zerofill_dpth = monitor_array[0];
1444 monitor_config->zerofill_loc = monitor_array[1];
1445 monitor_config->zerofill_frm = monitor_array[2];
1446 }
1447 }
1448 of_node_put(signal_format);
1449
1450 return 0;
1451 }
1452
1453 /* Errata Rev A0 */
1454 static const struct reg_sequence cs35l35_errata_patch[] = {
1455
1456 { 0x7F, 0x99 },
1457 { 0x00, 0x99 },
1458 { 0x52, 0x22 },
1459 { 0x04, 0x14 },
1460 { 0x6D, 0x44 },
1461 { 0x24, 0x10 },
1462 { 0x58, 0xC4 },
1463 { 0x00, 0x98 },
1464 { 0x18, 0x08 },
1465 { 0x00, 0x00 },
1466 { 0x7F, 0x00 },
1467 };
1468
1469 static int cs35l35_i2c_probe(struct i2c_client *i2c_client,
1470 const struct i2c_device_id *id)
1471 {
1472 struct cs35l35_private *cs35l35;
1473 struct device *dev = &i2c_client->dev;
1474 struct cs35l35_platform_data *pdata = dev_get_platdata(dev);
1475 int i;
1476 int ret;
1477 unsigned int devid = 0;
1478 unsigned int reg;
1479
1480 cs35l35 = devm_kzalloc(dev, sizeof(struct cs35l35_private), GFP_KERNEL);
1481 if (!cs35l35)
1482 return -ENOMEM;
1483
1484 cs35l35->dev = dev;
1485
1486 i2c_set_clientdata(i2c_client, cs35l35);
1487 cs35l35->regmap = devm_regmap_init_i2c(i2c_client, &cs35l35_regmap);
1488 if (IS_ERR(cs35l35->regmap)) {
1489 ret = PTR_ERR(cs35l35->regmap);
1490 dev_err(dev, "regmap_init() failed: %d\n", ret);
1491 goto err;
1492 }
1493
1494 for (i = 0; i < ARRAY_SIZE(cs35l35_supplies); i++)
1495 cs35l35->supplies[i].supply = cs35l35_supplies[i];
1496
1497 cs35l35->num_supplies = ARRAY_SIZE(cs35l35_supplies);
1498
1499 ret = devm_regulator_bulk_get(dev, cs35l35->num_supplies,
1500 cs35l35->supplies);
1501 if (ret != 0) {
1502 dev_err(dev, "Failed to request core supplies: %d\n", ret);
1503 return ret;
1504 }
1505
1506 if (pdata) {
1507 cs35l35->pdata = *pdata;
1508 } else {
1509 pdata = devm_kzalloc(dev, sizeof(struct cs35l35_platform_data),
1510 GFP_KERNEL);
1511 if (!pdata)
1512 return -ENOMEM;
1513 if (i2c_client->dev.of_node) {
1514 ret = cs35l35_handle_of_data(i2c_client, pdata);
1515 if (ret != 0)
1516 return ret;
1517
1518 }
1519 cs35l35->pdata = *pdata;
1520 }
1521
1522 ret = regulator_bulk_enable(cs35l35->num_supplies,
1523 cs35l35->supplies);
1524 if (ret != 0) {
1525 dev_err(dev, "Failed to enable core supplies: %d\n", ret);
1526 return ret;
1527 }
1528
1529 /* returning NULL can be valid if in stereo mode */
1530 cs35l35->reset_gpio = devm_gpiod_get_optional(dev, "reset",
1531 GPIOD_OUT_LOW);
1532 if (IS_ERR(cs35l35->reset_gpio)) {
1533 ret = PTR_ERR(cs35l35->reset_gpio);
1534 cs35l35->reset_gpio = NULL;
1535 if (ret == -EBUSY) {
1536 dev_info(dev,
1537 "Reset line busy, assuming shared reset\n");
1538 } else {
1539 dev_err(dev, "Failed to get reset GPIO: %d\n", ret);
1540 goto err;
1541 }
1542 }
1543
1544 cs35l35_reset(cs35l35);
1545
1546 init_completion(&cs35l35->pdn_done);
1547
1548 ret = devm_request_threaded_irq(dev, i2c_client->irq, NULL, cs35l35_irq,
1549 IRQF_ONESHOT | IRQF_TRIGGER_LOW |
1550 IRQF_SHARED, "cs35l35", cs35l35);
1551 if (ret != 0) {
1552 dev_err(dev, "Failed to request IRQ: %d\n", ret);
1553 goto err;
1554 }
1555 /* initialize codec */
1556 ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_AB, &reg);
1557
1558 devid = (reg & 0xFF) << 12;
1559 ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_CD, &reg);
1560 devid |= (reg & 0xFF) << 4;
1561 ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_E, &reg);
1562 devid |= (reg & 0xF0) >> 4;
1563
1564 if (devid != CS35L35_CHIP_ID) {
1565 dev_err(dev, "CS35L35 Device ID (%X). Expected ID %X\n",
1566 devid, CS35L35_CHIP_ID);
1567 ret = -ENODEV;
1568 goto err;
1569 }
1570
1571 ret = regmap_read(cs35l35->regmap, CS35L35_REV_ID, &reg);
1572 if (ret < 0) {
1573 dev_err(dev, "Get Revision ID failed: %d\n", ret);
1574 goto err;
1575 }
1576
1577 ret = regmap_register_patch(cs35l35->regmap, cs35l35_errata_patch,
1578 ARRAY_SIZE(cs35l35_errata_patch));
1579 if (ret < 0) {
1580 dev_err(dev, "Failed to apply errata patch: %d\n", ret);
1581 goto err;
1582 }
1583
1584 dev_info(dev, "Cirrus Logic CS35L35 (%x), Revision: %02X\n",
1585 devid, reg & 0xFF);
1586
1587 /* Set the INT Masks for critical errors */
1588 regmap_write(cs35l35->regmap, CS35L35_INT_MASK_1,
1589 CS35L35_INT1_CRIT_MASK);
1590 regmap_write(cs35l35->regmap, CS35L35_INT_MASK_2,
1591 CS35L35_INT2_CRIT_MASK);
1592 regmap_write(cs35l35->regmap, CS35L35_INT_MASK_3,
1593 CS35L35_INT3_CRIT_MASK);
1594 regmap_write(cs35l35->regmap, CS35L35_INT_MASK_4,
1595 CS35L35_INT4_CRIT_MASK);
1596
1597 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
1598 CS35L35_PWR2_PDN_MASK,
1599 CS35L35_PWR2_PDN_MASK);
1600
1601 if (cs35l35->pdata.bst_pdn_fet_on)
1602 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
1603 CS35L35_PDN_BST_MASK,
1604 1 << CS35L35_PDN_BST_FETON_SHIFT);
1605 else
1606 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
1607 CS35L35_PDN_BST_MASK,
1608 1 << CS35L35_PDN_BST_FETOFF_SHIFT);
1609
1610 regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL3,
1611 CS35L35_PWR3_PDN_MASK,
1612 CS35L35_PWR3_PDN_MASK);
1613
1614 regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
1615 CS35L35_AMP_MUTE_MASK, 1 << CS35L35_AMP_MUTE_SHIFT);
1616
1617 ret = devm_snd_soc_register_component(dev, &soc_component_dev_cs35l35,
1618 cs35l35_dai, ARRAY_SIZE(cs35l35_dai));
1619 if (ret < 0) {
1620 dev_err(dev, "Failed to register component: %d\n", ret);
1621 goto err;
1622 }
1623
1624 return 0;
1625
1626 err:
1627 regulator_bulk_disable(cs35l35->num_supplies,
1628 cs35l35->supplies);
1629 gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
1630
1631 return ret;
1632 }
1633
1634 static int cs35l35_i2c_remove(struct i2c_client *i2c_client)
1635 {
1636 struct cs35l35_private *cs35l35 = i2c_get_clientdata(i2c_client);
1637
1638 regulator_bulk_disable(cs35l35->num_supplies, cs35l35->supplies);
1639 gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
1640
1641 return 0;
1642 }
1643
1644 static const struct of_device_id cs35l35_of_match[] = {
1645 {.compatible = "cirrus,cs35l35"},
1646 {},
1647 };
1648 MODULE_DEVICE_TABLE(of, cs35l35_of_match);
1649
1650 static const struct i2c_device_id cs35l35_id[] = {
1651 {"cs35l35", 0},
1652 {}
1653 };
1654
1655 MODULE_DEVICE_TABLE(i2c, cs35l35_id);
1656
1657 static struct i2c_driver cs35l35_i2c_driver = {
1658 .driver = {
1659 .name = "cs35l35",
1660 .of_match_table = cs35l35_of_match,
1661 },
1662 .id_table = cs35l35_id,
1663 .probe = cs35l35_i2c_probe,
1664 .remove = cs35l35_i2c_remove,
1665 };
1666
1667 module_i2c_driver(cs35l35_i2c_driver);
1668
1669 MODULE_DESCRIPTION("ASoC CS35L35 driver");
1670 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
1671 MODULE_LICENSE("GPL");
Linux with added FPC-III support