1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // cs35l45.c - CS35L45 ALSA SoC audio driver
4 //
5 // Copyright 2019-2022 Cirrus Logic, Inc.
6 //
7 // Author: James Schulman <james.schulman@cirrus.com>
8
9 #include <linux/gpio/consumer.h>
10 #include <linux/module.h>
11 #include <linux/pm_runtime.h>
12 #include <linux/property.h>
13 #include <linux/firmware.h>
14 #include <linux/regulator/consumer.h>
15 #include <sound/core.h>
16 #include <sound/pcm.h>
17 #include <sound/pcm_params.h>
18 #include <sound/soc.h>
19 #include <sound/tlv.h>
20
21 #include "cs35l45.h"
22
cs35l45_check_cspl_mbox_sts(const enum cs35l45_cspl_mboxcmd cmd,enum cs35l45_cspl_mboxstate sts)23 static bool cs35l45_check_cspl_mbox_sts(const enum cs35l45_cspl_mboxcmd cmd,
24 enum cs35l45_cspl_mboxstate sts)
25 {
26 switch (cmd) {
27 case CSPL_MBOX_CMD_NONE:
28 case CSPL_MBOX_CMD_UNKNOWN_CMD:
29 return true;
30 case CSPL_MBOX_CMD_PAUSE:
31 case CSPL_MBOX_CMD_OUT_OF_HIBERNATE:
32 return (sts == CSPL_MBOX_STS_PAUSED);
33 case CSPL_MBOX_CMD_RESUME:
34 return (sts == CSPL_MBOX_STS_RUNNING);
35 case CSPL_MBOX_CMD_REINIT:
36 return (sts == CSPL_MBOX_STS_RUNNING);
37 case CSPL_MBOX_CMD_STOP_PRE_REINIT:
38 return (sts == CSPL_MBOX_STS_RDY_FOR_REINIT);
39 case CSPL_MBOX_CMD_HIBERNATE:
40 return (sts == CSPL_MBOX_STS_HIBERNATE);
41 default:
42 return false;
43 }
44 }
45
cs35l45_set_cspl_mbox_cmd(struct cs35l45_private * cs35l45,struct regmap * regmap,const enum cs35l45_cspl_mboxcmd cmd)46 static int cs35l45_set_cspl_mbox_cmd(struct cs35l45_private *cs35l45,
47 struct regmap *regmap,
48 const enum cs35l45_cspl_mboxcmd cmd)
49 {
50 unsigned int sts = 0, i;
51 int ret;
52
53 if (!cs35l45->dsp.cs_dsp.running) {
54 dev_err(cs35l45->dev, "DSP not running\n");
55 return -EPERM;
56 }
57
58 // Set mailbox cmd
59 ret = regmap_write(regmap, CS35L45_DSP_VIRT1_MBOX_1, cmd);
60 if (ret < 0) {
61 if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
62 dev_err(cs35l45->dev, "Failed to write MBOX: %d\n", ret);
63 return ret;
64 }
65
66 // Read mailbox status and verify it is appropriate for the given cmd
67 for (i = 0; i < 5; i++) {
68 usleep_range(1000, 1100);
69
70 ret = regmap_read(regmap, CS35L45_DSP_MBOX_2, &sts);
71 if (ret < 0) {
72 dev_err(cs35l45->dev, "Failed to read MBOX STS: %d\n", ret);
73 continue;
74 }
75
76 if (!cs35l45_check_cspl_mbox_sts(cmd, sts))
77 dev_dbg(cs35l45->dev, "[%u] cmd %u returned invalid sts %u", i, cmd, sts);
78 else
79 return 0;
80 }
81
82 if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
83 dev_err(cs35l45->dev, "Failed to set mailbox cmd %u (status %u)\n", cmd, sts);
84
85 return -ENOMSG;
86 }
87
cs35l45_global_en_ev(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)88 static int cs35l45_global_en_ev(struct snd_soc_dapm_widget *w,
89 struct snd_kcontrol *kcontrol, int event)
90 {
91 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
92 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
93
94 dev_dbg(cs35l45->dev, "%s event : %x\n", __func__, event);
95
96 switch (event) {
97 case SND_SOC_DAPM_POST_PMU:
98 regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES,
99 CS35L45_GLOBAL_EN_MASK);
100
101 usleep_range(CS35L45_POST_GLOBAL_EN_US, CS35L45_POST_GLOBAL_EN_US + 100);
102 break;
103 case SND_SOC_DAPM_PRE_PMD:
104 usleep_range(CS35L45_PRE_GLOBAL_DIS_US, CS35L45_PRE_GLOBAL_DIS_US + 100);
105
106 regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES, 0);
107 break;
108 default:
109 break;
110 }
111
112 return 0;
113 }
114
cs35l45_dsp_preload_ev(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)115 static int cs35l45_dsp_preload_ev(struct snd_soc_dapm_widget *w,
116 struct snd_kcontrol *kcontrol, int event)
117 {
118 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
119 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
120 int ret;
121
122 switch (event) {
123 case SND_SOC_DAPM_PRE_PMU:
124 if (cs35l45->dsp.cs_dsp.booted)
125 return 0;
126
127 return wm_adsp_early_event(w, kcontrol, event);
128 case SND_SOC_DAPM_POST_PMU:
129 if (cs35l45->dsp.cs_dsp.running)
130 return 0;
131
132 regmap_set_bits(cs35l45->regmap, CS35L45_PWRMGT_CTL,
133 CS35L45_MEM_RDY_MASK);
134
135 return wm_adsp_event(w, kcontrol, event);
136 case SND_SOC_DAPM_PRE_PMD:
137 if (cs35l45->dsp.preloaded)
138 return 0;
139
140 if (cs35l45->dsp.cs_dsp.running) {
141 ret = wm_adsp_event(w, kcontrol, event);
142 if (ret)
143 return ret;
144 }
145
146 return wm_adsp_early_event(w, kcontrol, event);
147 default:
148 return 0;
149 }
150 }
151
cs35l45_dsp_audio_ev(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)152 static int cs35l45_dsp_audio_ev(struct snd_soc_dapm_widget *w,
153 struct snd_kcontrol *kcontrol, int event)
154 {
155 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
156 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
157
158 switch (event) {
159 case SND_SOC_DAPM_POST_PMU:
160 return cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
161 CSPL_MBOX_CMD_RESUME);
162 case SND_SOC_DAPM_PRE_PMD:
163 return cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
164 CSPL_MBOX_CMD_PAUSE);
165 default:
166 return 0;
167 }
168
169 return 0;
170 }
171
cs35l45_activate_ctl(struct snd_soc_component * component,const char * ctl_name,bool active)172 static int cs35l45_activate_ctl(struct snd_soc_component *component,
173 const char *ctl_name, bool active)
174 {
175 struct snd_card *card = component->card->snd_card;
176 struct snd_kcontrol *kcontrol;
177 struct snd_kcontrol_volatile *vd;
178 unsigned int index_offset;
179
180 kcontrol = snd_soc_component_get_kcontrol(component, ctl_name);
181 if (!kcontrol) {
182 dev_err(component->dev, "Can't find kcontrol %s\n", ctl_name);
183 return -EINVAL;
184 }
185
186 index_offset = snd_ctl_get_ioff(kcontrol, &kcontrol->id);
187 vd = &kcontrol->vd[index_offset];
188 if (active)
189 vd->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
190 else
191 vd->access &= ~SNDRV_CTL_ELEM_ACCESS_WRITE;
192
193 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &kcontrol->id);
194
195 return 0;
196 }
197
cs35l45_amplifier_mode_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)198 static int cs35l45_amplifier_mode_get(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
200 {
201 struct snd_soc_component *component =
202 snd_soc_kcontrol_component(kcontrol);
203 struct cs35l45_private *cs35l45 =
204 snd_soc_component_get_drvdata(component);
205
206 ucontrol->value.integer.value[0] = cs35l45->amplifier_mode;
207
208 return 0;
209 }
210
cs35l45_amplifier_mode_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)211 static int cs35l45_amplifier_mode_put(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol)
213 {
214 struct snd_soc_component *component =
215 snd_soc_kcontrol_component(kcontrol);
216 struct cs35l45_private *cs35l45 =
217 snd_soc_component_get_drvdata(component);
218 struct snd_soc_dapm_context *dapm =
219 snd_soc_component_get_dapm(component);
220 unsigned int amp_state;
221 int ret;
222
223 if ((ucontrol->value.integer.value[0] == cs35l45->amplifier_mode) ||
224 (ucontrol->value.integer.value[0] > AMP_MODE_RCV))
225 return 0;
226
227 snd_soc_dapm_mutex_lock(dapm);
228
229 ret = regmap_read(cs35l45->regmap, CS35L45_BLOCK_ENABLES, &_state);
230 if (ret < 0) {
231 dev_err(cs35l45->dev, "Failed to read AMP state: %d\n", ret);
232 snd_soc_dapm_mutex_unlock(dapm);
233 return ret;
234 }
235
236 regmap_clear_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
237 CS35L45_AMP_EN_MASK);
238 snd_soc_component_disable_pin_unlocked(component, "SPK");
239 snd_soc_dapm_sync_unlocked(dapm);
240
241 if (ucontrol->value.integer.value[0] == AMP_MODE_SPK) {
242 regmap_clear_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
243 CS35L45_RCV_EN_MASK);
244
245 regmap_update_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
246 CS35L45_BST_EN_MASK,
247 CS35L45_BST_ENABLE << CS35L45_BST_EN_SHIFT);
248
249 regmap_update_bits(cs35l45->regmap, CS35L45_HVLV_CONFIG,
250 CS35L45_HVLV_MODE_MASK,
251 CS35L45_HVLV_OPERATION <<
252 CS35L45_HVLV_MODE_SHIFT);
253
254 ret = cs35l45_activate_ctl(component, "Analog PCM Volume", true);
255 if (ret < 0)
256 dev_err(cs35l45->dev,
257 "Unable to deactivate ctl (%d)\n", ret);
258
259 } else /* AMP_MODE_RCV */ {
260 regmap_set_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
261 CS35L45_RCV_EN_MASK);
262
263 regmap_update_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
264 CS35L45_BST_EN_MASK,
265 CS35L45_BST_DISABLE_FET_OFF <<
266 CS35L45_BST_EN_SHIFT);
267
268 regmap_update_bits(cs35l45->regmap, CS35L45_HVLV_CONFIG,
269 CS35L45_HVLV_MODE_MASK,
270 CS35L45_FORCE_LV_OPERATION <<
271 CS35L45_HVLV_MODE_SHIFT);
272
273 regmap_clear_bits(cs35l45->regmap,
274 CS35L45_BLOCK_ENABLES2,
275 CS35L45_AMP_DRE_EN_MASK);
276
277 regmap_update_bits(cs35l45->regmap, CS35L45_AMP_GAIN,
278 CS35L45_AMP_GAIN_PCM_MASK,
279 CS35L45_AMP_GAIN_PCM_13DBV <<
280 CS35L45_AMP_GAIN_PCM_SHIFT);
281
282 ret = cs35l45_activate_ctl(component, "Analog PCM Volume", false);
283 if (ret < 0)
284 dev_err(cs35l45->dev,
285 "Unable to deactivate ctl (%d)\n", ret);
286 }
287
288 if (amp_state & CS35L45_AMP_EN_MASK)
289 regmap_set_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
290 CS35L45_AMP_EN_MASK);
291
292 snd_soc_component_enable_pin_unlocked(component, "SPK");
293 snd_soc_dapm_sync_unlocked(dapm);
294 snd_soc_dapm_mutex_unlock(dapm);
295
296 cs35l45->amplifier_mode = ucontrol->value.integer.value[0];
297
298 return 1;
299 }
300
301 static const char * const cs35l45_asp_tx_txt[] = {
302 "Zero", "ASP_RX1", "ASP_RX2",
303 "VMON", "IMON", "ERR_VOL",
304 "VDD_BATTMON", "VDD_BSTMON",
305 "DSP_TX1", "DSP_TX2",
306 "Interpolator", "IL_TARGET",
307 };
308
309 static const unsigned int cs35l45_asp_tx_val[] = {
310 CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
311 CS35L45_PCM_SRC_VMON, CS35L45_PCM_SRC_IMON, CS35L45_PCM_SRC_ERR_VOL,
312 CS35L45_PCM_SRC_VDD_BATTMON, CS35L45_PCM_SRC_VDD_BSTMON,
313 CS35L45_PCM_SRC_DSP_TX1, CS35L45_PCM_SRC_DSP_TX2,
314 CS35L45_PCM_SRC_INTERPOLATOR, CS35L45_PCM_SRC_IL_TARGET,
315 };
316
317 static const struct soc_enum cs35l45_asp_tx_enums[] = {
318 SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX1_INPUT, 0, CS35L45_PCM_SRC_MASK,
319 ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
320 cs35l45_asp_tx_val),
321 SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX2_INPUT, 0, CS35L45_PCM_SRC_MASK,
322 ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
323 cs35l45_asp_tx_val),
324 SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX3_INPUT, 0, CS35L45_PCM_SRC_MASK,
325 ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
326 cs35l45_asp_tx_val),
327 SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX4_INPUT, 0, CS35L45_PCM_SRC_MASK,
328 ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
329 cs35l45_asp_tx_val),
330 SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX5_INPUT, 0, CS35L45_PCM_SRC_MASK,
331 ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
332 cs35l45_asp_tx_val),
333 };
334
335 static const char * const cs35l45_dsp_rx_txt[] = {
336 "Zero", "ASP_RX1", "ASP_RX2",
337 "VMON", "IMON", "ERR_VOL",
338 "CLASSH_TGT", "VDD_BATTMON",
339 "VDD_BSTMON", "TEMPMON",
340 };
341
342 static const unsigned int cs35l45_dsp_rx_val[] = {
343 CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
344 CS35L45_PCM_SRC_VMON, CS35L45_PCM_SRC_IMON, CS35L45_PCM_SRC_ERR_VOL,
345 CS35L45_PCM_SRC_CLASSH_TGT, CS35L45_PCM_SRC_VDD_BATTMON,
346 CS35L45_PCM_SRC_VDD_BSTMON, CS35L45_PCM_SRC_TEMPMON,
347 };
348
349 static const struct soc_enum cs35l45_dsp_rx_enums[] = {
350 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX1_INPUT, 0, CS35L45_PCM_SRC_MASK,
351 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
352 cs35l45_dsp_rx_val),
353 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX2_INPUT, 0, CS35L45_PCM_SRC_MASK,
354 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
355 cs35l45_dsp_rx_val),
356 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX3_INPUT, 0, CS35L45_PCM_SRC_MASK,
357 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
358 cs35l45_dsp_rx_val),
359 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX4_INPUT, 0, CS35L45_PCM_SRC_MASK,
360 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
361 cs35l45_dsp_rx_val),
362 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX5_INPUT, 0, CS35L45_PCM_SRC_MASK,
363 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
364 cs35l45_dsp_rx_val),
365 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX6_INPUT, 0, CS35L45_PCM_SRC_MASK,
366 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
367 cs35l45_dsp_rx_val),
368 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX7_INPUT, 0, CS35L45_PCM_SRC_MASK,
369 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
370 cs35l45_dsp_rx_val),
371 SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX8_INPUT, 0, CS35L45_PCM_SRC_MASK,
372 ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
373 cs35l45_dsp_rx_val),
374 };
375
376 static const char * const cs35l45_dac_txt[] = {
377 "Zero", "ASP_RX1", "ASP_RX2", "DSP_TX1", "DSP_TX2"
378 };
379
380 static const unsigned int cs35l45_dac_val[] = {
381 CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
382 CS35L45_PCM_SRC_DSP_TX1, CS35L45_PCM_SRC_DSP_TX2
383 };
384
385 static const struct soc_enum cs35l45_dacpcm_enums[] = {
386 SOC_VALUE_ENUM_SINGLE(CS35L45_DACPCM1_INPUT, 0, CS35L45_PCM_SRC_MASK,
387 ARRAY_SIZE(cs35l45_dac_txt), cs35l45_dac_txt,
388 cs35l45_dac_val),
389 };
390
391 static const struct snd_kcontrol_new cs35l45_asp_muxes[] = {
392 SOC_DAPM_ENUM("ASP_TX1 Source", cs35l45_asp_tx_enums[0]),
393 SOC_DAPM_ENUM("ASP_TX2 Source", cs35l45_asp_tx_enums[1]),
394 SOC_DAPM_ENUM("ASP_TX3 Source", cs35l45_asp_tx_enums[2]),
395 SOC_DAPM_ENUM("ASP_TX4 Source", cs35l45_asp_tx_enums[3]),
396 SOC_DAPM_ENUM("ASP_TX5 Source", cs35l45_asp_tx_enums[4]),
397 };
398
399 static const struct snd_kcontrol_new cs35l45_dsp_muxes[] = {
400 SOC_DAPM_ENUM("DSP_RX1 Source", cs35l45_dsp_rx_enums[0]),
401 SOC_DAPM_ENUM("DSP_RX2 Source", cs35l45_dsp_rx_enums[1]),
402 SOC_DAPM_ENUM("DSP_RX3 Source", cs35l45_dsp_rx_enums[2]),
403 SOC_DAPM_ENUM("DSP_RX4 Source", cs35l45_dsp_rx_enums[3]),
404 SOC_DAPM_ENUM("DSP_RX5 Source", cs35l45_dsp_rx_enums[4]),
405 SOC_DAPM_ENUM("DSP_RX6 Source", cs35l45_dsp_rx_enums[5]),
406 SOC_DAPM_ENUM("DSP_RX7 Source", cs35l45_dsp_rx_enums[6]),
407 SOC_DAPM_ENUM("DSP_RX8 Source", cs35l45_dsp_rx_enums[7]),
408 };
409
410 static const struct snd_kcontrol_new cs35l45_dac_muxes[] = {
411 SOC_DAPM_ENUM("DACPCM Source", cs35l45_dacpcm_enums[0]),
412 };
413 static const struct snd_kcontrol_new amp_en_ctl =
414 SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 1, 0);
415
416 static const struct snd_soc_dapm_widget cs35l45_dapm_widgets[] = {
417 SND_SOC_DAPM_SPK("DSP1 Preload", NULL),
418 SND_SOC_DAPM_SUPPLY_S("DSP1 Preloader", 100, SND_SOC_NOPM, 0, 0,
419 cs35l45_dsp_preload_ev,
420 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
421 SND_SOC_DAPM_OUT_DRV_E("DSP1", SND_SOC_NOPM, 0, 0, NULL, 0,
422 cs35l45_dsp_audio_ev,
423 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
424 SND_SOC_DAPM_SUPPLY("GLOBAL_EN", SND_SOC_NOPM, 0, 0,
425 cs35l45_global_en_ev,
426 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
427 SND_SOC_DAPM_SUPPLY("ASP_EN", CS35L45_BLOCK_ENABLES2, CS35L45_ASP_EN_SHIFT, 0, NULL, 0),
428
429 SND_SOC_DAPM_SIGGEN("VMON_SRC"),
430 SND_SOC_DAPM_SIGGEN("IMON_SRC"),
431 SND_SOC_DAPM_SIGGEN("TEMPMON_SRC"),
432 SND_SOC_DAPM_SIGGEN("VDD_BATTMON_SRC"),
433 SND_SOC_DAPM_SIGGEN("VDD_BSTMON_SRC"),
434 SND_SOC_DAPM_SIGGEN("ERR_VOL"),
435 SND_SOC_DAPM_SIGGEN("AMP_INTP"),
436 SND_SOC_DAPM_SIGGEN("IL_TARGET"),
437
438 SND_SOC_DAPM_SUPPLY("VMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VMON_EN_SHIFT, 0, NULL, 0),
439 SND_SOC_DAPM_SUPPLY("IMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_IMON_EN_SHIFT, 0, NULL, 0),
440 SND_SOC_DAPM_SUPPLY("TEMPMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_TEMPMON_EN_SHIFT, 0, NULL, 0),
441 SND_SOC_DAPM_SUPPLY("VDD_BATTMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VDD_BATTMON_EN_SHIFT, 0, NULL, 0),
442 SND_SOC_DAPM_SUPPLY("VDD_BSTMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VDD_BSTMON_EN_SHIFT, 0, NULL, 0),
443
444 SND_SOC_DAPM_ADC("VMON", NULL, SND_SOC_NOPM, 0, 0),
445 SND_SOC_DAPM_ADC("IMON", NULL, SND_SOC_NOPM, 0, 0),
446 SND_SOC_DAPM_ADC("TEMPMON", NULL, SND_SOC_NOPM, 0, 0),
447 SND_SOC_DAPM_ADC("VDD_BATTMON", NULL, SND_SOC_NOPM, 0, 0),
448 SND_SOC_DAPM_ADC("VDD_BSTMON", NULL, SND_SOC_NOPM, 0, 0),
449
450
451 SND_SOC_DAPM_AIF_IN("ASP_RX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX1_EN_SHIFT, 0),
452 SND_SOC_DAPM_AIF_IN("ASP_RX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX2_EN_SHIFT, 0),
453
454 SND_SOC_DAPM_AIF_OUT("ASP_TX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX1_EN_SHIFT, 0),
455 SND_SOC_DAPM_AIF_OUT("ASP_TX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX2_EN_SHIFT, 0),
456 SND_SOC_DAPM_AIF_OUT("ASP_TX3", NULL, 2, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX3_EN_SHIFT, 0),
457 SND_SOC_DAPM_AIF_OUT("ASP_TX4", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX4_EN_SHIFT, 0),
458 SND_SOC_DAPM_AIF_OUT("ASP_TX5", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX5_EN_SHIFT, 0),
459
460 SND_SOC_DAPM_MUX("ASP_TX1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[0]),
461 SND_SOC_DAPM_MUX("ASP_TX2 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[1]),
462 SND_SOC_DAPM_MUX("ASP_TX3 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[2]),
463 SND_SOC_DAPM_MUX("ASP_TX4 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[3]),
464 SND_SOC_DAPM_MUX("ASP_TX5 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[4]),
465
466 SND_SOC_DAPM_MUX("DSP_RX1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[0]),
467 SND_SOC_DAPM_MUX("DSP_RX2 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[1]),
468 SND_SOC_DAPM_MUX("DSP_RX3 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[2]),
469 SND_SOC_DAPM_MUX("DSP_RX4 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[3]),
470 SND_SOC_DAPM_MUX("DSP_RX5 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[4]),
471 SND_SOC_DAPM_MUX("DSP_RX6 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[5]),
472 SND_SOC_DAPM_MUX("DSP_RX7 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[6]),
473 SND_SOC_DAPM_MUX("DSP_RX8 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[7]),
474
475 SND_SOC_DAPM_MUX("DACPCM Source", SND_SOC_NOPM, 0, 0, &cs35l45_dac_muxes[0]),
476
477 SND_SOC_DAPM_SWITCH("AMP Enable", SND_SOC_NOPM, 0, 0, &_en_ctl),
478
479 SND_SOC_DAPM_OUT_DRV("AMP", SND_SOC_NOPM, 0, 0, NULL, 0),
480
481 SND_SOC_DAPM_OUTPUT("SPK"),
482 };
483
484 #define CS35L45_ASP_MUX_ROUTE(name) \
485 { name" Source", "ASP_RX1", "ASP_RX1" }, \
486 { name" Source", "ASP_RX2", "ASP_RX2" }, \
487 { name" Source", "DSP_TX1", "DSP1" }, \
488 { name" Source", "DSP_TX2", "DSP1" }, \
489 { name" Source", "VMON", "VMON" }, \
490 { name" Source", "IMON", "IMON" }, \
491 { name" Source", "ERR_VOL", "ERR_VOL" }, \
492 { name" Source", "VDD_BATTMON", "VDD_BATTMON" }, \
493 { name" Source", "VDD_BSTMON", "VDD_BSTMON" }, \
494 { name" Source", "Interpolator", "AMP_INTP" }, \
495 { name" Source", "IL_TARGET", "IL_TARGET" }
496
497 #define CS35L45_DSP_MUX_ROUTE(name) \
498 { name" Source", "ASP_RX1", "ASP_RX1" }, \
499 { name" Source", "ASP_RX2", "ASP_RX2" }
500
501 #define CS35L45_DAC_MUX_ROUTE(name) \
502 { name" Source", "ASP_RX1", "ASP_RX1" }, \
503 { name" Source", "ASP_RX2", "ASP_RX2" }, \
504 { name" Source", "DSP_TX1", "DSP1" }, \
505 { name" Source", "DSP_TX2", "DSP1" }
506
507 static const struct snd_soc_dapm_route cs35l45_dapm_routes[] = {
508 /* Feedback */
509 { "VMON", NULL, "VMON_SRC" },
510 { "IMON", NULL, "IMON_SRC" },
511 { "TEMPMON", NULL, "TEMPMON_SRC" },
512 { "VDD_BATTMON", NULL, "VDD_BATTMON_SRC" },
513 { "VDD_BSTMON", NULL, "VDD_BSTMON_SRC" },
514
515 { "VMON", NULL, "VMON_EN" },
516 { "IMON", NULL, "IMON_EN" },
517 { "TEMPMON", NULL, "TEMPMON_EN" },
518 { "VDD_BATTMON", NULL, "VDD_BATTMON_EN" },
519 { "VDD_BSTMON", NULL, "VDD_BSTMON_EN" },
520
521 { "Capture", NULL, "ASP_TX1"},
522 { "Capture", NULL, "ASP_TX2"},
523 { "Capture", NULL, "ASP_TX3"},
524 { "Capture", NULL, "ASP_TX4"},
525 { "Capture", NULL, "ASP_TX5"},
526 { "ASP_TX1", NULL, "ASP_TX1 Source"},
527 { "ASP_TX2", NULL, "ASP_TX2 Source"},
528 { "ASP_TX3", NULL, "ASP_TX3 Source"},
529 { "ASP_TX4", NULL, "ASP_TX4 Source"},
530 { "ASP_TX5", NULL, "ASP_TX5 Source"},
531
532 { "ASP_TX1", NULL, "ASP_EN" },
533 { "ASP_TX2", NULL, "ASP_EN" },
534 { "ASP_TX3", NULL, "ASP_EN" },
535 { "ASP_TX4", NULL, "ASP_EN" },
536 { "ASP_TX1", NULL, "GLOBAL_EN" },
537 { "ASP_TX2", NULL, "GLOBAL_EN" },
538 { "ASP_TX3", NULL, "GLOBAL_EN" },
539 { "ASP_TX4", NULL, "GLOBAL_EN" },
540 { "ASP_TX5", NULL, "GLOBAL_EN" },
541
542 CS35L45_ASP_MUX_ROUTE("ASP_TX1"),
543 CS35L45_ASP_MUX_ROUTE("ASP_TX2"),
544 CS35L45_ASP_MUX_ROUTE("ASP_TX3"),
545 CS35L45_ASP_MUX_ROUTE("ASP_TX4"),
546 CS35L45_ASP_MUX_ROUTE("ASP_TX5"),
547
548 /* Playback */
549 { "ASP_RX1", NULL, "Playback" },
550 { "ASP_RX2", NULL, "Playback" },
551 { "ASP_RX1", NULL, "ASP_EN" },
552 { "ASP_RX2", NULL, "ASP_EN" },
553
554 { "AMP", NULL, "DACPCM Source"},
555 { "AMP", NULL, "GLOBAL_EN"},
556
557 CS35L45_DSP_MUX_ROUTE("DSP_RX1"),
558 CS35L45_DSP_MUX_ROUTE("DSP_RX2"),
559 CS35L45_DSP_MUX_ROUTE("DSP_RX3"),
560 CS35L45_DSP_MUX_ROUTE("DSP_RX4"),
561 CS35L45_DSP_MUX_ROUTE("DSP_RX5"),
562 CS35L45_DSP_MUX_ROUTE("DSP_RX6"),
563 CS35L45_DSP_MUX_ROUTE("DSP_RX7"),
564 CS35L45_DSP_MUX_ROUTE("DSP_RX8"),
565
566 {"DSP1", NULL, "DSP_RX1 Source"},
567 {"DSP1", NULL, "DSP_RX2 Source"},
568 {"DSP1", NULL, "DSP_RX3 Source"},
569 {"DSP1", NULL, "DSP_RX4 Source"},
570 {"DSP1", NULL, "DSP_RX5 Source"},
571 {"DSP1", NULL, "DSP_RX6 Source"},
572 {"DSP1", NULL, "DSP_RX7 Source"},
573 {"DSP1", NULL, "DSP_RX8 Source"},
574
575 {"DSP1", NULL, "VMON_EN"},
576 {"DSP1", NULL, "IMON_EN"},
577 {"DSP1", NULL, "VDD_BATTMON_EN"},
578 {"DSP1", NULL, "VDD_BSTMON_EN"},
579 {"DSP1", NULL, "TEMPMON_EN"},
580
581 {"DSP1 Preload", NULL, "DSP1 Preloader"},
582 {"DSP1", NULL, "DSP1 Preloader"},
583
584 CS35L45_DAC_MUX_ROUTE("DACPCM"),
585
586 { "AMP Enable", "Switch", "AMP" },
587 { "SPK", NULL, "AMP Enable"},
588 };
589
590 static const char * const amplifier_mode_texts[] = {"SPK", "RCV"};
591 static SOC_ENUM_SINGLE_DECL(amplifier_mode_enum, SND_SOC_NOPM, 0,
592 amplifier_mode_texts);
593 static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 1000, 300, 0);
594 static const DECLARE_TLV_DB_SCALE(cs35l45_dig_pcm_vol_tlv, -10225, 25, true);
595
596 static const struct snd_kcontrol_new cs35l45_controls[] = {
597 SOC_ENUM_EXT("Amplifier Mode", amplifier_mode_enum,
598 cs35l45_amplifier_mode_get, cs35l45_amplifier_mode_put),
599 SOC_SINGLE_TLV("Analog PCM Volume", CS35L45_AMP_GAIN,
600 CS35L45_AMP_GAIN_PCM_SHIFT,
601 CS35L45_AMP_GAIN_PCM_MASK >> CS35L45_AMP_GAIN_PCM_SHIFT,
602 0, amp_gain_tlv),
603 /* Ignore bit 0: it is beyond the resolution of TLV_DB_SCALE */
604 SOC_SINGLE_S_TLV("Digital PCM Volume",
605 CS35L45_AMP_PCM_CONTROL,
606 CS35L45_AMP_VOL_PCM_SHIFT + 1,
607 -409, 48,
608 (CS35L45_AMP_VOL_PCM_WIDTH - 1) - 1,
609 0, cs35l45_dig_pcm_vol_tlv),
610 WM_ADSP2_PRELOAD_SWITCH("DSP1", 1),
611 WM_ADSP_FW_CONTROL("DSP1", 0),
612 };
613
cs35l45_set_pll(struct cs35l45_private * cs35l45,unsigned int freq)614 static int cs35l45_set_pll(struct cs35l45_private *cs35l45, unsigned int freq)
615 {
616 unsigned int val;
617 int freq_id;
618
619 freq_id = cs35l45_get_clk_freq_id(freq);
620 if (freq_id < 0) {
621 dev_err(cs35l45->dev, "Invalid freq: %u\n", freq);
622 return -EINVAL;
623 }
624
625 regmap_read(cs35l45->regmap, CS35L45_REFCLK_INPUT, &val);
626 val = (val & CS35L45_PLL_REFCLK_FREQ_MASK) >> CS35L45_PLL_REFCLK_FREQ_SHIFT;
627 if (val == freq_id)
628 return 0;
629
630 regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
631 regmap_update_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT,
632 CS35L45_PLL_REFCLK_FREQ_MASK,
633 freq_id << CS35L45_PLL_REFCLK_FREQ_SHIFT);
634 regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
635 regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
636 regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
637
638 return 0;
639 }
640
cs35l45_asp_set_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)641 static int cs35l45_asp_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
642 {
643 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(codec_dai->component);
644 unsigned int asp_fmt, fsync_inv, bclk_inv;
645
646 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
647 case SND_SOC_DAIFMT_CBC_CFC:
648 break;
649 default:
650 dev_err(cs35l45->dev, "Invalid DAI clocking\n");
651 return -EINVAL;
652 }
653
654 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
655 case SND_SOC_DAIFMT_DSP_A:
656 asp_fmt = CS35l45_ASP_FMT_DSP_A;
657 break;
658 case SND_SOC_DAIFMT_I2S:
659 asp_fmt = CS35L45_ASP_FMT_I2S;
660 break;
661 default:
662 dev_err(cs35l45->dev, "Invalid DAI format\n");
663 return -EINVAL;
664 }
665
666 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
667 case SND_SOC_DAIFMT_NB_IF:
668 fsync_inv = 1;
669 bclk_inv = 0;
670 break;
671 case SND_SOC_DAIFMT_IB_NF:
672 fsync_inv = 0;
673 bclk_inv = 1;
674 break;
675 case SND_SOC_DAIFMT_IB_IF:
676 fsync_inv = 1;
677 bclk_inv = 1;
678 break;
679 case SND_SOC_DAIFMT_NB_NF:
680 fsync_inv = 0;
681 bclk_inv = 0;
682 break;
683 default:
684 dev_warn(cs35l45->dev, "Invalid DAI clock polarity\n");
685 return -EINVAL;
686 }
687
688 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
689 CS35L45_ASP_FMT_MASK |
690 CS35L45_ASP_FSYNC_INV_MASK |
691 CS35L45_ASP_BCLK_INV_MASK,
692 (asp_fmt << CS35L45_ASP_FMT_SHIFT) |
693 (fsync_inv << CS35L45_ASP_FSYNC_INV_SHIFT) |
694 (bclk_inv << CS35L45_ASP_BCLK_INV_SHIFT));
695
696 return 0;
697 }
698
cs35l45_asp_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)699 static int cs35l45_asp_hw_params(struct snd_pcm_substream *substream,
700 struct snd_pcm_hw_params *params,
701 struct snd_soc_dai *dai)
702 {
703 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
704 unsigned int asp_width, asp_wl, global_fs, slot_multiple, asp_fmt;
705 int bclk;
706
707 switch (params_rate(params)) {
708 case 44100:
709 global_fs = CS35L45_44P100_KHZ;
710 break;
711 case 48000:
712 global_fs = CS35L45_48P0_KHZ;
713 break;
714 case 88200:
715 global_fs = CS35L45_88P200_KHZ;
716 break;
717 case 96000:
718 global_fs = CS35L45_96P0_KHZ;
719 break;
720 default:
721 dev_warn(cs35l45->dev, "Unsupported sample rate (%d)\n",
722 params_rate(params));
723 return -EINVAL;
724 }
725
726 regmap_update_bits(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE,
727 CS35L45_GLOBAL_FS_MASK,
728 global_fs << CS35L45_GLOBAL_FS_SHIFT);
729
730 asp_wl = params_width(params);
731
732 if (cs35l45->slot_width)
733 asp_width = cs35l45->slot_width;
734 else
735 asp_width = params_width(params);
736
737 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
738 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
739 CS35L45_ASP_WIDTH_RX_MASK,
740 asp_width << CS35L45_ASP_WIDTH_RX_SHIFT);
741
742 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL5,
743 CS35L45_ASP_WL_MASK,
744 asp_wl << CS35L45_ASP_WL_SHIFT);
745 } else {
746 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
747 CS35L45_ASP_WIDTH_TX_MASK,
748 asp_width << CS35L45_ASP_WIDTH_TX_SHIFT);
749
750 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL1,
751 CS35L45_ASP_WL_MASK,
752 asp_wl << CS35L45_ASP_WL_SHIFT);
753 }
754
755 if (cs35l45->sysclk_set)
756 return 0;
757
758 /* I2S always has an even number of channels */
759 regmap_read(cs35l45->regmap, CS35L45_ASP_CONTROL2, &asp_fmt);
760 asp_fmt = (asp_fmt & CS35L45_ASP_FMT_MASK) >> CS35L45_ASP_FMT_SHIFT;
761 if (asp_fmt == CS35L45_ASP_FMT_I2S)
762 slot_multiple = 2;
763 else
764 slot_multiple = 1;
765
766 bclk = snd_soc_tdm_params_to_bclk(params, asp_width,
767 cs35l45->slot_count, slot_multiple);
768
769 return cs35l45_set_pll(cs35l45, bclk);
770 }
771
cs35l45_asp_set_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)772 static int cs35l45_asp_set_tdm_slot(struct snd_soc_dai *dai,
773 unsigned int tx_mask, unsigned int rx_mask,
774 int slots, int slot_width)
775 {
776 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
777
778 if (slot_width && ((slot_width < 16) || (slot_width > 128)))
779 return -EINVAL;
780
781 cs35l45->slot_width = slot_width;
782 cs35l45->slot_count = slots;
783
784 return 0;
785 }
786
cs35l45_asp_set_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)787 static int cs35l45_asp_set_sysclk(struct snd_soc_dai *dai,
788 int clk_id, unsigned int freq, int dir)
789 {
790 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
791 int ret;
792
793 if (clk_id != 0) {
794 dev_err(cs35l45->dev, "Invalid clk_id %d\n", clk_id);
795 return -EINVAL;
796 }
797
798 cs35l45->sysclk_set = false;
799 if (freq == 0)
800 return 0;
801
802 ret = cs35l45_set_pll(cs35l45, freq);
803 if (ret < 0)
804 return -EINVAL;
805
806 cs35l45->sysclk_set = true;
807
808 return 0;
809 }
810
cs35l45_mute_stream(struct snd_soc_dai * dai,int mute,int stream)811 static int cs35l45_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
812 {
813 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
814 unsigned int global_fs, val, hpf_tune;
815
816 if (mute)
817 return 0;
818
819 regmap_read(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE, &global_fs);
820 global_fs = (global_fs & CS35L45_GLOBAL_FS_MASK) >> CS35L45_GLOBAL_FS_SHIFT;
821 switch (global_fs) {
822 case CS35L45_44P100_KHZ:
823 hpf_tune = CS35L45_HPF_44P1;
824 break;
825 case CS35L45_88P200_KHZ:
826 hpf_tune = CS35L45_HPF_88P2;
827 break;
828 default:
829 hpf_tune = CS35l45_HPF_DEFAULT;
830 break;
831 }
832
833 regmap_read(cs35l45->regmap, CS35L45_AMP_PCM_HPF_TST, &val);
834 if (val != hpf_tune) {
835 struct reg_sequence hpf_override_seq[] = {
836 { 0x00000040, 0x00000055 },
837 { 0x00000040, 0x000000AA },
838 { 0x00000044, 0x00000055 },
839 { 0x00000044, 0x000000AA },
840 { CS35L45_AMP_PCM_HPF_TST, hpf_tune },
841 { 0x00000040, 0x00000000 },
842 { 0x00000044, 0x00000000 },
843 };
844 regmap_multi_reg_write(cs35l45->regmap, hpf_override_seq,
845 ARRAY_SIZE(hpf_override_seq));
846 }
847
848 return 0;
849 }
850
851 static const struct snd_soc_dai_ops cs35l45_asp_dai_ops = {
852 .set_fmt = cs35l45_asp_set_fmt,
853 .hw_params = cs35l45_asp_hw_params,
854 .set_tdm_slot = cs35l45_asp_set_tdm_slot,
855 .set_sysclk = cs35l45_asp_set_sysclk,
856 .mute_stream = cs35l45_mute_stream,
857 };
858
859 static struct snd_soc_dai_driver cs35l45_dai[] = {
860 {
861 .name = "cs35l45",
862 .playback = {
863 .stream_name = "Playback",
864 .channels_min = 1,
865 .channels_max = 2,
866 .rates = CS35L45_RATES,
867 .formats = CS35L45_FORMATS,
868 },
869 .capture = {
870 .stream_name = "Capture",
871 .channels_min = 1,
872 .channels_max = 5,
873 .rates = CS35L45_RATES,
874 .formats = CS35L45_FORMATS,
875 },
876 .symmetric_rate = true,
877 .symmetric_sample_bits = true,
878 .ops = &cs35l45_asp_dai_ops,
879 },
880 };
881
cs35l45_component_probe(struct snd_soc_component * component)882 static int cs35l45_component_probe(struct snd_soc_component *component)
883 {
884 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
885
886 return wm_adsp2_component_probe(&cs35l45->dsp, component);
887 }
888
cs35l45_component_remove(struct snd_soc_component * component)889 static void cs35l45_component_remove(struct snd_soc_component *component)
890 {
891 struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
892
893 wm_adsp2_component_remove(&cs35l45->dsp, component);
894 }
895
896 static const struct snd_soc_component_driver cs35l45_component = {
897 .probe = cs35l45_component_probe,
898 .remove = cs35l45_component_remove,
899
900 .dapm_widgets = cs35l45_dapm_widgets,
901 .num_dapm_widgets = ARRAY_SIZE(cs35l45_dapm_widgets),
902
903 .dapm_routes = cs35l45_dapm_routes,
904 .num_dapm_routes = ARRAY_SIZE(cs35l45_dapm_routes),
905
906 .controls = cs35l45_controls,
907 .num_controls = ARRAY_SIZE(cs35l45_controls),
908
909 .name = "cs35l45",
910
911 .endianness = 1,
912 };
913
cs35l45_setup_hibernate(struct cs35l45_private * cs35l45)914 static void cs35l45_setup_hibernate(struct cs35l45_private *cs35l45)
915 {
916 unsigned int wksrc;
917
918 if (cs35l45->bus_type == CONTROL_BUS_I2C)
919 wksrc = CS35L45_WKSRC_I2C;
920 else
921 wksrc = CS35L45_WKSRC_SPI;
922
923 regmap_update_bits(cs35l45->regmap, CS35L45_WAKESRC_CTL,
924 CS35L45_WKSRC_EN_MASK,
925 wksrc << CS35L45_WKSRC_EN_SHIFT);
926
927 regmap_set_bits(cs35l45->regmap, CS35L45_WAKESRC_CTL,
928 CS35L45_UPDT_WKCTL_MASK);
929
930 regmap_update_bits(cs35l45->regmap, CS35L45_WKI2C_CTL,
931 CS35L45_WKI2C_ADDR_MASK, cs35l45->i2c_addr);
932
933 regmap_set_bits(cs35l45->regmap, CS35L45_WKI2C_CTL,
934 CS35L45_UPDT_WKI2C_MASK);
935 }
936
cs35l45_enter_hibernate(struct cs35l45_private * cs35l45)937 static int cs35l45_enter_hibernate(struct cs35l45_private *cs35l45)
938 {
939 dev_dbg(cs35l45->dev, "Enter hibernate\n");
940
941 cs35l45_setup_hibernate(cs35l45);
942
943 regmap_set_bits(cs35l45->regmap, CS35L45_IRQ1_MASK_2, CS35L45_DSP_VIRT2_MBOX_MASK);
944
945 // Don't wait for ACK since bus activity would wake the device
946 regmap_write(cs35l45->regmap, CS35L45_DSP_VIRT1_MBOX_1, CSPL_MBOX_CMD_HIBERNATE);
947
948 return 0;
949 }
950
cs35l45_exit_hibernate(struct cs35l45_private * cs35l45)951 static int cs35l45_exit_hibernate(struct cs35l45_private *cs35l45)
952 {
953 const int wake_retries = 20;
954 const int sleep_retries = 5;
955 int ret, i, j;
956
957 for (i = 0; i < sleep_retries; i++) {
958 dev_dbg(cs35l45->dev, "Exit hibernate\n");
959
960 for (j = 0; j < wake_retries; j++) {
961 ret = cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
962 CSPL_MBOX_CMD_OUT_OF_HIBERNATE);
963 if (!ret) {
964 dev_dbg(cs35l45->dev, "Wake success at cycle: %d\n", j);
965 regmap_clear_bits(cs35l45->regmap, CS35L45_IRQ1_MASK_2,
966 CS35L45_DSP_VIRT2_MBOX_MASK);
967 return 0;
968 }
969 usleep_range(100, 200);
970 }
971
972 dev_err(cs35l45->dev, "Wake failed, re-enter hibernate: %d\n", ret);
973
974 cs35l45_setup_hibernate(cs35l45);
975 }
976
977 dev_err(cs35l45->dev, "Timed out waking device\n");
978
979 return -ETIMEDOUT;
980 }
981
cs35l45_runtime_suspend(struct device * dev)982 static int cs35l45_runtime_suspend(struct device *dev)
983 {
984 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
985
986 if (!cs35l45->dsp.preloaded || !cs35l45->dsp.cs_dsp.running)
987 return 0;
988
989 cs35l45_enter_hibernate(cs35l45);
990
991 regcache_cache_only(cs35l45->regmap, true);
992 regcache_mark_dirty(cs35l45->regmap);
993
994 dev_dbg(cs35l45->dev, "Runtime suspended\n");
995
996 return 0;
997 }
998
cs35l45_runtime_resume(struct device * dev)999 static int cs35l45_runtime_resume(struct device *dev)
1000 {
1001 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
1002 int ret;
1003
1004 if (!cs35l45->dsp.preloaded || !cs35l45->dsp.cs_dsp.running)
1005 return 0;
1006
1007 dev_dbg(cs35l45->dev, "Runtime resume\n");
1008
1009 regcache_cache_only(cs35l45->regmap, false);
1010
1011 ret = cs35l45_exit_hibernate(cs35l45);
1012 if (ret)
1013 return ret;
1014
1015 ret = regcache_sync(cs35l45->regmap);
1016 if (ret != 0)
1017 dev_warn(cs35l45->dev, "regcache_sync failed: %d\n", ret);
1018
1019 /* Clear global error status */
1020 regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
1021 regmap_set_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
1022 regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
1023 return ret;
1024 }
1025
cs35l45_sys_suspend(struct device * dev)1026 static int cs35l45_sys_suspend(struct device *dev)
1027 {
1028 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
1029
1030 dev_dbg(cs35l45->dev, "System suspend, disabling IRQ\n");
1031 disable_irq(cs35l45->irq);
1032
1033 return 0;
1034 }
1035
cs35l45_sys_suspend_noirq(struct device * dev)1036 static int cs35l45_sys_suspend_noirq(struct device *dev)
1037 {
1038 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
1039
1040 dev_dbg(cs35l45->dev, "Late system suspend, reenabling IRQ\n");
1041 enable_irq(cs35l45->irq);
1042
1043 return 0;
1044 }
1045
cs35l45_sys_resume_noirq(struct device * dev)1046 static int cs35l45_sys_resume_noirq(struct device *dev)
1047 {
1048 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
1049
1050 dev_dbg(cs35l45->dev, "Early system resume, disabling IRQ\n");
1051 disable_irq(cs35l45->irq);
1052
1053 return 0;
1054 }
1055
cs35l45_sys_resume(struct device * dev)1056 static int cs35l45_sys_resume(struct device *dev)
1057 {
1058 struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
1059
1060 dev_dbg(cs35l45->dev, "System resume, reenabling IRQ\n");
1061 enable_irq(cs35l45->irq);
1062
1063 return 0;
1064 }
1065
cs35l45_apply_property_config(struct cs35l45_private * cs35l45)1066 static int cs35l45_apply_property_config(struct cs35l45_private *cs35l45)
1067 {
1068 struct device_node *node = cs35l45->dev->of_node;
1069 unsigned int gpio_regs[] = {CS35L45_GPIO1_CTRL1, CS35L45_GPIO2_CTRL1,
1070 CS35L45_GPIO3_CTRL1};
1071 unsigned int pad_regs[] = {CS35L45_SYNC_GPIO1,
1072 CS35L45_INTB_GPIO2_MCLK_REF, CS35L45_GPIO3};
1073 struct device_node *child;
1074 unsigned int val;
1075 char of_name[32];
1076 int ret, i;
1077
1078 if (!node)
1079 return 0;
1080
1081 for (i = 0; i < CS35L45_NUM_GPIOS; i++) {
1082 sprintf(of_name, "cirrus,gpio-ctrl%d", i + 1);
1083 child = of_get_child_by_name(node, of_name);
1084 if (!child)
1085 continue;
1086
1087 ret = of_property_read_u32(child, "gpio-dir", &val);
1088 if (!ret)
1089 regmap_update_bits(cs35l45->regmap, gpio_regs[i],
1090 CS35L45_GPIO_DIR_MASK,
1091 val << CS35L45_GPIO_DIR_SHIFT);
1092
1093 ret = of_property_read_u32(child, "gpio-lvl", &val);
1094 if (!ret)
1095 regmap_update_bits(cs35l45->regmap, gpio_regs[i],
1096 CS35L45_GPIO_LVL_MASK,
1097 val << CS35L45_GPIO_LVL_SHIFT);
1098
1099 ret = of_property_read_u32(child, "gpio-op-cfg", &val);
1100 if (!ret)
1101 regmap_update_bits(cs35l45->regmap, gpio_regs[i],
1102 CS35L45_GPIO_OP_CFG_MASK,
1103 val << CS35L45_GPIO_OP_CFG_SHIFT);
1104
1105 ret = of_property_read_u32(child, "gpio-pol", &val);
1106 if (!ret)
1107 regmap_update_bits(cs35l45->regmap, gpio_regs[i],
1108 CS35L45_GPIO_POL_MASK,
1109 val << CS35L45_GPIO_POL_SHIFT);
1110
1111 ret = of_property_read_u32(child, "gpio-ctrl", &val);
1112 if (!ret)
1113 regmap_update_bits(cs35l45->regmap, pad_regs[i],
1114 CS35L45_GPIO_CTRL_MASK,
1115 val << CS35L45_GPIO_CTRL_SHIFT);
1116
1117 ret = of_property_read_u32(child, "gpio-invert", &val);
1118 if (!ret) {
1119 regmap_update_bits(cs35l45->regmap, pad_regs[i],
1120 CS35L45_GPIO_INVERT_MASK,
1121 val << CS35L45_GPIO_INVERT_SHIFT);
1122 if (i == 1)
1123 cs35l45->irq_invert = val;
1124 }
1125
1126 of_node_put(child);
1127 }
1128
1129 if (device_property_read_u32(cs35l45->dev,
1130 "cirrus,asp-sdout-hiz-ctrl", &val) == 0) {
1131 regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL3,
1132 CS35L45_ASP_DOUT_HIZ_CTRL_MASK,
1133 val << CS35L45_ASP_DOUT_HIZ_CTRL_SHIFT);
1134 }
1135
1136 return 0;
1137 }
1138
cs35l45_dsp_virt2_mbox3_irq_handle(struct cs35l45_private * cs35l45,const unsigned int cmd,unsigned int data)1139 static int cs35l45_dsp_virt2_mbox3_irq_handle(struct cs35l45_private *cs35l45,
1140 const unsigned int cmd,
1141 unsigned int data)
1142 {
1143 static char *speak_status = "Unknown";
1144
1145 switch (cmd) {
1146 case EVENT_SPEAKER_STATUS:
1147 switch (data) {
1148 case 1:
1149 speak_status = "All Clear";
1150 break;
1151 case 2:
1152 speak_status = "Open Circuit";
1153 break;
1154 case 4:
1155 speak_status = "Short Circuit";
1156 break;
1157 }
1158
1159 dev_info(cs35l45->dev, "MBOX event (SPEAKER_STATUS): %s\n",
1160 speak_status);
1161 break;
1162 case EVENT_BOOT_DONE:
1163 dev_dbg(cs35l45->dev, "MBOX event (BOOT_DONE)\n");
1164 break;
1165 default:
1166 dev_err(cs35l45->dev, "MBOX event not supported %u\n", cmd);
1167 return -EINVAL;
1168 }
1169
1170 return 0;
1171 }
1172
cs35l45_dsp_virt2_mbox_cb(int irq,void * data)1173 static irqreturn_t cs35l45_dsp_virt2_mbox_cb(int irq, void *data)
1174 {
1175 struct cs35l45_private *cs35l45 = data;
1176 unsigned int mbox_val;
1177 int ret = 0;
1178
1179 ret = regmap_read(cs35l45->regmap, CS35L45_DSP_VIRT2_MBOX_3, &mbox_val);
1180 if (!ret && mbox_val)
1181 cs35l45_dsp_virt2_mbox3_irq_handle(cs35l45, mbox_val & CS35L45_MBOX3_CMD_MASK,
1182 (mbox_val & CS35L45_MBOX3_DATA_MASK) >> CS35L45_MBOX3_DATA_SHIFT);
1183
1184 /* Handle DSP trace log IRQ */
1185 ret = regmap_read(cs35l45->regmap, CS35L45_DSP_VIRT2_MBOX_4, &mbox_val);
1186 if (!ret && mbox_val != 0) {
1187 dev_err(cs35l45->dev, "Spurious DSP MBOX4 IRQ\n");
1188 }
1189
1190 return IRQ_RETVAL(ret);
1191 }
1192
cs35l45_pll_unlock(int irq,void * data)1193 static irqreturn_t cs35l45_pll_unlock(int irq, void *data)
1194 {
1195 struct cs35l45_private *cs35l45 = data;
1196
1197 dev_dbg(cs35l45->dev, "PLL unlock detected!");
1198
1199 return IRQ_HANDLED;
1200 }
1201
cs35l45_pll_lock(int irq,void * data)1202 static irqreturn_t cs35l45_pll_lock(int irq, void *data)
1203 {
1204 struct cs35l45_private *cs35l45 = data;
1205
1206 dev_dbg(cs35l45->dev, "PLL lock detected!");
1207
1208 return IRQ_HANDLED;
1209 }
1210
1211 static irqreturn_t cs35l45_spk_safe_err(int irq, void *data);
1212
1213 static const struct cs35l45_irq cs35l45_irqs[] = {
1214 CS35L45_IRQ(AMP_SHORT_ERR, "Amplifier short error", cs35l45_spk_safe_err),
1215 CS35L45_IRQ(UVLO_VDDBATT_ERR, "VDDBATT undervoltage error", cs35l45_spk_safe_err),
1216 CS35L45_IRQ(BST_SHORT_ERR, "Boost inductor error", cs35l45_spk_safe_err),
1217 CS35L45_IRQ(BST_UVP_ERR, "Boost undervoltage error", cs35l45_spk_safe_err),
1218 CS35L45_IRQ(TEMP_ERR, "Overtemperature error", cs35l45_spk_safe_err),
1219 CS35L45_IRQ(AMP_CAL_ERR, "Amplifier calibration error", cs35l45_spk_safe_err),
1220 CS35L45_IRQ(UVLO_VDDLV_ERR, "LV threshold detector error", cs35l45_spk_safe_err),
1221 CS35L45_IRQ(GLOBAL_ERROR, "Global error", cs35l45_spk_safe_err),
1222 CS35L45_IRQ(DSP_WDT_EXPIRE, "DSP Watchdog Timer", cs35l45_spk_safe_err),
1223 CS35L45_IRQ(PLL_UNLOCK_FLAG_RISE, "PLL unlock", cs35l45_pll_unlock),
1224 CS35L45_IRQ(PLL_LOCK_FLAG, "PLL lock", cs35l45_pll_lock),
1225 CS35L45_IRQ(DSP_VIRT2_MBOX, "DSP virtual MBOX 2 write flag", cs35l45_dsp_virt2_mbox_cb),
1226 };
1227
cs35l45_spk_safe_err(int irq,void * data)1228 static irqreturn_t cs35l45_spk_safe_err(int irq, void *data)
1229 {
1230 struct cs35l45_private *cs35l45 = data;
1231 int i;
1232
1233 i = irq - regmap_irq_get_virq(cs35l45->irq_data, 0);
1234
1235 if (i < 0 || i >= ARRAY_SIZE(cs35l45_irqs))
1236 dev_err(cs35l45->dev, "Unspecified global error condition (%d) detected!\n", irq);
1237 else
1238 dev_err(cs35l45->dev, "%s condition detected!\n", cs35l45_irqs[i].name);
1239
1240 return IRQ_HANDLED;
1241 }
1242
1243 static const struct regmap_irq cs35l45_reg_irqs[] = {
1244 CS35L45_REG_IRQ(IRQ1_EINT_1, AMP_SHORT_ERR),
1245 CS35L45_REG_IRQ(IRQ1_EINT_1, UVLO_VDDBATT_ERR),
1246 CS35L45_REG_IRQ(IRQ1_EINT_1, BST_SHORT_ERR),
1247 CS35L45_REG_IRQ(IRQ1_EINT_1, BST_UVP_ERR),
1248 CS35L45_REG_IRQ(IRQ1_EINT_1, TEMP_ERR),
1249 CS35L45_REG_IRQ(IRQ1_EINT_3, AMP_CAL_ERR),
1250 CS35L45_REG_IRQ(IRQ1_EINT_18, UVLO_VDDLV_ERR),
1251 CS35L45_REG_IRQ(IRQ1_EINT_18, GLOBAL_ERROR),
1252 CS35L45_REG_IRQ(IRQ1_EINT_2, DSP_WDT_EXPIRE),
1253 CS35L45_REG_IRQ(IRQ1_EINT_3, PLL_UNLOCK_FLAG_RISE),
1254 CS35L45_REG_IRQ(IRQ1_EINT_3, PLL_LOCK_FLAG),
1255 CS35L45_REG_IRQ(IRQ1_EINT_2, DSP_VIRT2_MBOX),
1256 };
1257
1258 static const struct regmap_irq_chip cs35l45_regmap_irq_chip = {
1259 .name = "cs35l45 IRQ1 Controller",
1260 .main_status = CS35L45_IRQ1_STATUS,
1261 .status_base = CS35L45_IRQ1_EINT_1,
1262 .mask_base = CS35L45_IRQ1_MASK_1,
1263 .ack_base = CS35L45_IRQ1_EINT_1,
1264 .num_regs = 18,
1265 .irqs = cs35l45_reg_irqs,
1266 .num_irqs = ARRAY_SIZE(cs35l45_reg_irqs),
1267 .runtime_pm = true,
1268 };
1269
cs35l45_initialize(struct cs35l45_private * cs35l45)1270 static int cs35l45_initialize(struct cs35l45_private *cs35l45)
1271 {
1272 struct device *dev = cs35l45->dev;
1273 unsigned int dev_id[5];
1274 unsigned int sts;
1275 int ret;
1276
1277 ret = regmap_read_poll_timeout(cs35l45->regmap, CS35L45_IRQ1_EINT_4, sts,
1278 (sts & CS35L45_OTP_BOOT_DONE_STS_MASK),
1279 1000, 5000);
1280 if (ret < 0) {
1281 dev_err(cs35l45->dev, "Timeout waiting for OTP boot\n");
1282 return ret;
1283 }
1284
1285 ret = regmap_bulk_read(cs35l45->regmap, CS35L45_DEVID, dev_id, ARRAY_SIZE(dev_id));
1286 if (ret) {
1287 dev_err(cs35l45->dev, "Get Device ID failed: %d\n", ret);
1288 return ret;
1289 }
1290
1291 switch (dev_id[0]) {
1292 case 0x35A450:
1293 case 0x35A460:
1294 break;
1295 default:
1296 dev_err(cs35l45->dev, "Bad DEVID 0x%x\n", dev_id[0]);
1297 return -ENODEV;
1298 }
1299
1300 dev_info(cs35l45->dev, "Cirrus Logic CS35L45: REVID %02X OTPID %02X\n",
1301 dev_id[1], dev_id[4]);
1302
1303 regmap_write(cs35l45->regmap, CS35L45_IRQ1_EINT_4,
1304 CS35L45_OTP_BOOT_DONE_STS_MASK | CS35L45_OTP_BUSY_MASK);
1305
1306 ret = cs35l45_apply_patch(cs35l45);
1307 if (ret < 0) {
1308 dev_err(dev, "Failed to apply init patch %d\n", ret);
1309 return ret;
1310 }
1311
1312 ret = cs35l45_apply_property_config(cs35l45);
1313 if (ret < 0)
1314 return ret;
1315
1316 cs35l45->amplifier_mode = AMP_MODE_SPK;
1317
1318 return 0;
1319 }
1320
1321 static const struct reg_sequence cs35l45_fs_errata_patch[] = {
1322 {0x02B80080, 0x00000001},
1323 {0x02B80088, 0x00000001},
1324 {0x02B80090, 0x00000001},
1325 {0x02B80098, 0x00000001},
1326 {0x02B800A0, 0x00000001},
1327 {0x02B800A8, 0x00000001},
1328 {0x02B800B0, 0x00000001},
1329 {0x02B800B8, 0x00000001},
1330 {0x02B80280, 0x00000001},
1331 {0x02B80288, 0x00000001},
1332 {0x02B80290, 0x00000001},
1333 {0x02B80298, 0x00000001},
1334 {0x02B802A0, 0x00000001},
1335 {0x02B802A8, 0x00000001},
1336 {0x02B802B0, 0x00000001},
1337 {0x02B802B8, 0x00000001},
1338 };
1339
1340 static const struct cs_dsp_region cs35l45_dsp1_regions[] = {
1341 { .type = WMFW_HALO_PM_PACKED, .base = CS35L45_DSP1_PMEM_0 },
1342 { .type = WMFW_HALO_XM_PACKED, .base = CS35L45_DSP1_XMEM_PACK_0 },
1343 { .type = WMFW_HALO_YM_PACKED, .base = CS35L45_DSP1_YMEM_PACK_0 },
1344 {. type = WMFW_ADSP2_XM, .base = CS35L45_DSP1_XMEM_UNPACK24_0},
1345 {. type = WMFW_ADSP2_YM, .base = CS35L45_DSP1_YMEM_UNPACK24_0},
1346 };
1347
cs35l45_dsp_init(struct cs35l45_private * cs35l45)1348 static int cs35l45_dsp_init(struct cs35l45_private *cs35l45)
1349 {
1350 struct wm_adsp *dsp = &cs35l45->dsp;
1351 int ret;
1352
1353 dsp->part = "cs35l45";
1354 dsp->fw = 9; /* 9 is WM_ADSP_FW_SPK_PROT in wm_adsp.c */
1355 dsp->toggle_preload = true;
1356 dsp->cs_dsp.num = 1;
1357 dsp->cs_dsp.type = WMFW_HALO;
1358 dsp->cs_dsp.rev = 0;
1359 dsp->cs_dsp.dev = cs35l45->dev;
1360 dsp->cs_dsp.regmap = cs35l45->regmap;
1361 dsp->cs_dsp.base = CS35L45_DSP1_CLOCK_FREQ;
1362 dsp->cs_dsp.base_sysinfo = CS35L45_DSP1_SYS_ID;
1363 dsp->cs_dsp.mem = cs35l45_dsp1_regions;
1364 dsp->cs_dsp.num_mems = ARRAY_SIZE(cs35l45_dsp1_regions);
1365 dsp->cs_dsp.lock_regions = 0xFFFFFFFF;
1366
1367 ret = wm_halo_init(dsp);
1368
1369 regmap_multi_reg_write(cs35l45->regmap, cs35l45_fs_errata_patch,
1370 ARRAY_SIZE(cs35l45_fs_errata_patch));
1371
1372 return ret;
1373 }
1374
cs35l45_probe(struct cs35l45_private * cs35l45)1375 int cs35l45_probe(struct cs35l45_private *cs35l45)
1376 {
1377 struct device *dev = cs35l45->dev;
1378 unsigned long irq_pol = IRQF_ONESHOT | IRQF_SHARED;
1379 int ret, i, irq;
1380
1381 cs35l45->vdd_batt = devm_regulator_get(dev, "vdd-batt");
1382 if (IS_ERR(cs35l45->vdd_batt))
1383 return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_batt),
1384 "Failed to request vdd-batt\n");
1385
1386 cs35l45->vdd_a = devm_regulator_get(dev, "vdd-a");
1387 if (IS_ERR(cs35l45->vdd_a))
1388 return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_a),
1389 "Failed to request vdd-a\n");
1390
1391 /* VDD_BATT must always be enabled before other supplies */
1392 ret = regulator_enable(cs35l45->vdd_batt);
1393 if (ret < 0)
1394 return dev_err_probe(dev, ret, "Failed to enable vdd-batt\n");
1395
1396 ret = regulator_enable(cs35l45->vdd_a);
1397 if (ret < 0)
1398 return dev_err_probe(dev, ret, "Failed to enable vdd-a\n");
1399
1400 /* If reset is shared only one instance can claim it */
1401 cs35l45->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
1402 if (IS_ERR(cs35l45->reset_gpio)) {
1403 ret = PTR_ERR(cs35l45->reset_gpio);
1404 cs35l45->reset_gpio = NULL;
1405 if (ret == -EBUSY) {
1406 dev_dbg(dev, "Reset line busy, assuming shared reset\n");
1407 } else {
1408 dev_err_probe(dev, ret, "Failed to get reset GPIO\n");
1409 goto err;
1410 }
1411 }
1412
1413 if (cs35l45->reset_gpio) {
1414 usleep_range(CS35L45_RESET_HOLD_US, CS35L45_RESET_HOLD_US + 100);
1415 gpiod_set_value_cansleep(cs35l45->reset_gpio, 1);
1416 }
1417
1418 usleep_range(CS35L45_RESET_US, CS35L45_RESET_US + 100);
1419
1420 ret = cs35l45_initialize(cs35l45);
1421 if (ret < 0)
1422 goto err_reset;
1423
1424 ret = cs35l45_dsp_init(cs35l45);
1425 if (ret < 0)
1426 goto err_reset;
1427
1428 pm_runtime_set_autosuspend_delay(cs35l45->dev, 3000);
1429 pm_runtime_use_autosuspend(cs35l45->dev);
1430 pm_runtime_mark_last_busy(cs35l45->dev);
1431 pm_runtime_set_active(cs35l45->dev);
1432 pm_runtime_get_noresume(cs35l45->dev);
1433 pm_runtime_enable(cs35l45->dev);
1434
1435 if (cs35l45->irq) {
1436 if (cs35l45->irq_invert)
1437 irq_pol |= IRQF_TRIGGER_HIGH;
1438 else
1439 irq_pol |= IRQF_TRIGGER_LOW;
1440
1441 ret = devm_regmap_add_irq_chip(dev, cs35l45->regmap, cs35l45->irq, irq_pol, 0,
1442 &cs35l45_regmap_irq_chip, &cs35l45->irq_data);
1443 if (ret) {
1444 dev_err(dev, "Failed to register IRQ chip: %d\n", ret);
1445 goto err_dsp;
1446 }
1447
1448 for (i = 0; i < ARRAY_SIZE(cs35l45_irqs); i++) {
1449 irq = regmap_irq_get_virq(cs35l45->irq_data, cs35l45_irqs[i].irq);
1450 if (irq < 0) {
1451 dev_err(dev, "Failed to get %s\n", cs35l45_irqs[i].name);
1452 ret = irq;
1453 goto err_dsp;
1454 }
1455
1456 ret = devm_request_threaded_irq(dev, irq, NULL, cs35l45_irqs[i].handler,
1457 irq_pol, cs35l45_irqs[i].name, cs35l45);
1458 if (ret) {
1459 dev_err(dev, "Failed to request IRQ %s: %d\n",
1460 cs35l45_irqs[i].name, ret);
1461 goto err_dsp;
1462 }
1463 }
1464 }
1465
1466 ret = devm_snd_soc_register_component(dev, &cs35l45_component,
1467 cs35l45_dai,
1468 ARRAY_SIZE(cs35l45_dai));
1469 if (ret < 0)
1470 goto err_dsp;
1471
1472 pm_runtime_put_autosuspend(cs35l45->dev);
1473
1474 return 0;
1475
1476 err_dsp:
1477 pm_runtime_disable(cs35l45->dev);
1478 pm_runtime_put_noidle(cs35l45->dev);
1479 wm_adsp2_remove(&cs35l45->dsp);
1480
1481 err_reset:
1482 gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
1483 err:
1484 regulator_disable(cs35l45->vdd_a);
1485 regulator_disable(cs35l45->vdd_batt);
1486
1487 return ret;
1488 }
1489 EXPORT_SYMBOL_NS_GPL(cs35l45_probe, SND_SOC_CS35L45);
1490
cs35l45_remove(struct cs35l45_private * cs35l45)1491 void cs35l45_remove(struct cs35l45_private *cs35l45)
1492 {
1493 pm_runtime_get_sync(cs35l45->dev);
1494 pm_runtime_disable(cs35l45->dev);
1495 wm_adsp2_remove(&cs35l45->dsp);
1496
1497 gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
1498
1499 pm_runtime_put_noidle(cs35l45->dev);
1500 regulator_disable(cs35l45->vdd_a);
1501 /* VDD_BATT must be the last to power-off */
1502 regulator_disable(cs35l45->vdd_batt);
1503 }
1504 EXPORT_SYMBOL_NS_GPL(cs35l45_remove, SND_SOC_CS35L45);
1505
1506 EXPORT_GPL_DEV_PM_OPS(cs35l45_pm_ops) = {
1507 RUNTIME_PM_OPS(cs35l45_runtime_suspend, cs35l45_runtime_resume, NULL)
1508
1509 SYSTEM_SLEEP_PM_OPS(cs35l45_sys_suspend, cs35l45_sys_resume)
1510 NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l45_sys_suspend_noirq, cs35l45_sys_resume_noirq)
1511 };
1512
1513 MODULE_DESCRIPTION("ASoC CS35L45 driver");
1514 MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
1515 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
1516 MODULE_LICENSE("GPL");
1517