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3333cb71 PH |
1 | /* |
2 | * cs35l33.c -- CS35L33 ALSA SoC audio driver | |
3 | * | |
4 | * Copyright 2016 Cirrus Logic, Inc. | |
5 | * | |
6 | * Author: Paul Handrigan <paul.handrigan@cirrus.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | */ | |
13 | #include <linux/module.h> | |
14 | #include <linux/moduleparam.h> | |
3333cb71 PH |
15 | #include <linux/kernel.h> |
16 | #include <linux/init.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/workqueue.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/soc-dapm.h> | |
27 | #include <sound/initval.h> | |
28 | #include <sound/tlv.h> | |
29 | #include <linux/gpio.h> | |
30 | #include <linux/gpio/consumer.h> | |
31 | #include <sound/cs35l33.h> | |
32 | #include <linux/pm_runtime.h> | |
33 | #include <linux/regulator/consumer.h> | |
34 | #include <linux/regulator/machine.h> | |
35 | #include <linux/of_gpio.h> | |
36 | #include <linux/of.h> | |
37 | #include <linux/of_device.h> | |
38 | #include <linux/of_irq.h> | |
39 | ||
40 | #include "cs35l33.h" | |
41 | ||
42 | #define CS35L33_BOOT_DELAY 50 | |
43 | ||
44 | struct cs35l33_private { | |
45 | struct snd_soc_codec *codec; | |
46 | struct cs35l33_pdata pdata; | |
47 | struct regmap *regmap; | |
48 | struct gpio_desc *reset_gpio; | |
49 | bool amp_cal; | |
50 | int mclk_int; | |
51 | struct regulator_bulk_data core_supplies[2]; | |
52 | int num_core_supplies; | |
53 | bool is_tdm_mode; | |
54 | bool enable_soft_ramp; | |
55 | }; | |
56 | ||
57 | static const struct reg_default cs35l33_reg[] = { | |
58 | {CS35L33_PWRCTL1, 0x85}, | |
59 | {CS35L33_PWRCTL2, 0xFE}, | |
60 | {CS35L33_CLK_CTL, 0x0C}, | |
61 | {CS35L33_BST_PEAK_CTL, 0x90}, | |
62 | {CS35L33_PROTECT_CTL, 0x55}, | |
63 | {CS35L33_BST_CTL1, 0x00}, | |
64 | {CS35L33_BST_CTL2, 0x01}, | |
65 | {CS35L33_ADSP_CTL, 0x00}, | |
66 | {CS35L33_ADC_CTL, 0xC8}, | |
67 | {CS35L33_DAC_CTL, 0x14}, | |
68 | {CS35L33_DIG_VOL_CTL, 0x00}, | |
69 | {CS35L33_CLASSD_CTL, 0x04}, | |
70 | {CS35L33_AMP_CTL, 0x90}, | |
71 | {CS35L33_INT_MASK_1, 0xFF}, | |
72 | {CS35L33_INT_MASK_2, 0xFF}, | |
73 | {CS35L33_DIAG_LOCK, 0x00}, | |
74 | {CS35L33_DIAG_CTRL_1, 0x40}, | |
75 | {CS35L33_DIAG_CTRL_2, 0x00}, | |
76 | {CS35L33_HG_MEMLDO_CTL, 0x62}, | |
77 | {CS35L33_HG_REL_RATE, 0x03}, | |
78 | {CS35L33_LDO_DEL, 0x12}, | |
79 | {CS35L33_HG_HEAD, 0x0A}, | |
80 | {CS35L33_HG_EN, 0x05}, | |
81 | {CS35L33_TX_VMON, 0x00}, | |
82 | {CS35L33_TX_IMON, 0x03}, | |
83 | {CS35L33_TX_VPMON, 0x02}, | |
84 | {CS35L33_TX_VBSTMON, 0x05}, | |
85 | {CS35L33_TX_FLAG, 0x06}, | |
86 | {CS35L33_TX_EN1, 0x00}, | |
87 | {CS35L33_TX_EN2, 0x00}, | |
88 | {CS35L33_TX_EN3, 0x00}, | |
89 | {CS35L33_TX_EN4, 0x00}, | |
90 | {CS35L33_RX_AUD, 0x40}, | |
91 | {CS35L33_RX_SPLY, 0x03}, | |
92 | {CS35L33_RX_ALIVE, 0x04}, | |
93 | {CS35L33_BST_CTL4, 0x63}, | |
94 | }; | |
95 | ||
96 | static const struct reg_sequence cs35l33_patch[] = { | |
97 | { 0x00, 0x99, 0 }, | |
98 | { 0x59, 0x02, 0 }, | |
99 | { 0x52, 0x30, 0 }, | |
100 | { 0x39, 0x45, 0 }, | |
101 | { 0x57, 0x30, 0 }, | |
102 | { 0x2C, 0x68, 0 }, | |
103 | { 0x00, 0x00, 0 }, | |
104 | }; | |
105 | ||
106 | static bool cs35l33_volatile_register(struct device *dev, unsigned int reg) | |
107 | { | |
108 | switch (reg) { | |
109 | case CS35L33_DEVID_AB: | |
110 | case CS35L33_DEVID_CD: | |
111 | case CS35L33_DEVID_E: | |
112 | case CS35L33_REV_ID: | |
113 | case CS35L33_INT_STATUS_1: | |
114 | case CS35L33_INT_STATUS_2: | |
115 | case CS35L33_HG_STATUS: | |
116 | return true; | |
117 | default: | |
118 | return false; | |
119 | } | |
120 | } | |
121 | ||
122 | static bool cs35l33_writeable_register(struct device *dev, unsigned int reg) | |
123 | { | |
124 | switch (reg) { | |
125 | /* these are read only registers */ | |
126 | case CS35L33_DEVID_AB: | |
127 | case CS35L33_DEVID_CD: | |
128 | case CS35L33_DEVID_E: | |
129 | case CS35L33_REV_ID: | |
130 | case CS35L33_INT_STATUS_1: | |
131 | case CS35L33_INT_STATUS_2: | |
132 | case CS35L33_HG_STATUS: | |
133 | return false; | |
134 | default: | |
135 | return true; | |
136 | } | |
137 | } | |
138 | ||
139 | static bool cs35l33_readable_register(struct device *dev, unsigned int reg) | |
140 | { | |
141 | switch (reg) { | |
142 | case CS35L33_DEVID_AB: | |
143 | case CS35L33_DEVID_CD: | |
144 | case CS35L33_DEVID_E: | |
145 | case CS35L33_REV_ID: | |
146 | case CS35L33_PWRCTL1: | |
147 | case CS35L33_PWRCTL2: | |
148 | case CS35L33_CLK_CTL: | |
149 | case CS35L33_BST_PEAK_CTL: | |
150 | case CS35L33_PROTECT_CTL: | |
151 | case CS35L33_BST_CTL1: | |
152 | case CS35L33_BST_CTL2: | |
153 | case CS35L33_ADSP_CTL: | |
154 | case CS35L33_ADC_CTL: | |
155 | case CS35L33_DAC_CTL: | |
156 | case CS35L33_DIG_VOL_CTL: | |
157 | case CS35L33_CLASSD_CTL: | |
158 | case CS35L33_AMP_CTL: | |
159 | case CS35L33_INT_MASK_1: | |
160 | case CS35L33_INT_MASK_2: | |
161 | case CS35L33_INT_STATUS_1: | |
162 | case CS35L33_INT_STATUS_2: | |
163 | case CS35L33_DIAG_LOCK: | |
164 | case CS35L33_DIAG_CTRL_1: | |
165 | case CS35L33_DIAG_CTRL_2: | |
166 | case CS35L33_HG_MEMLDO_CTL: | |
167 | case CS35L33_HG_REL_RATE: | |
168 | case CS35L33_LDO_DEL: | |
169 | case CS35L33_HG_HEAD: | |
170 | case CS35L33_HG_EN: | |
171 | case CS35L33_TX_VMON: | |
172 | case CS35L33_TX_IMON: | |
173 | case CS35L33_TX_VPMON: | |
174 | case CS35L33_TX_VBSTMON: | |
175 | case CS35L33_TX_FLAG: | |
176 | case CS35L33_TX_EN1: | |
177 | case CS35L33_TX_EN2: | |
178 | case CS35L33_TX_EN3: | |
179 | case CS35L33_TX_EN4: | |
180 | case CS35L33_RX_AUD: | |
181 | case CS35L33_RX_SPLY: | |
182 | case CS35L33_RX_ALIVE: | |
183 | case CS35L33_BST_CTL4: | |
184 | return true; | |
185 | default: | |
186 | return false; | |
187 | } | |
188 | } | |
189 | ||
190 | static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0); | |
191 | static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0); | |
192 | ||
193 | static const struct snd_kcontrol_new cs35l33_snd_controls[] = { | |
194 | ||
195 | SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL, | |
196 | 4, 0x09, 0, classd_ctl_tlv), | |
197 | SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL, | |
198 | 0, 0x34, 0xE4, dac_tlv), | |
199 | }; | |
200 | ||
201 | static int cs35l33_spkrdrv_event(struct snd_soc_dapm_widget *w, | |
202 | struct snd_kcontrol *kcontrol, int event) | |
203 | { | |
204 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); | |
205 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
206 | ||
207 | switch (event) { | |
208 | case SND_SOC_DAPM_POST_PMU: | |
209 | if (!priv->amp_cal) { | |
210 | usleep_range(8000, 9000); | |
211 | priv->amp_cal = true; | |
212 | regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL, | |
213 | CS35L33_AMP_CAL, 0); | |
214 | dev_dbg(codec->dev, "Amp calibration done\n"); | |
215 | } | |
216 | dev_dbg(codec->dev, "Amp turned on\n"); | |
217 | break; | |
218 | case SND_SOC_DAPM_POST_PMD: | |
219 | dev_dbg(codec->dev, "Amp turned off\n"); | |
220 | break; | |
221 | default: | |
222 | dev_err(codec->dev, "Invalid event = 0x%x\n", event); | |
223 | break; | |
224 | } | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | static int cs35l33_sdin_event(struct snd_soc_dapm_widget *w, | |
230 | struct snd_kcontrol *kcontrol, int event) | |
231 | { | |
232 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); | |
233 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
234 | unsigned int val; | |
235 | ||
236 | switch (event) { | |
237 | case SND_SOC_DAPM_PRE_PMU: | |
238 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, | |
239 | CS35L33_PDN_BST, 0); | |
240 | val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM; | |
241 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, | |
242 | CS35L33_PDN_TDM, val); | |
243 | dev_dbg(codec->dev, "BST turned on\n"); | |
244 | break; | |
245 | case SND_SOC_DAPM_POST_PMU: | |
246 | dev_dbg(codec->dev, "SDIN turned on\n"); | |
247 | if (!priv->amp_cal) { | |
248 | regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL, | |
249 | CS35L33_AMP_CAL, CS35L33_AMP_CAL); | |
250 | dev_dbg(codec->dev, "Amp calibration started\n"); | |
251 | usleep_range(10000, 11000); | |
252 | } | |
253 | break; | |
254 | case SND_SOC_DAPM_POST_PMD: | |
255 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, | |
256 | CS35L33_PDN_TDM, CS35L33_PDN_TDM); | |
257 | usleep_range(4000, 4100); | |
258 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, | |
259 | CS35L33_PDN_BST, CS35L33_PDN_BST); | |
260 | dev_dbg(codec->dev, "BST and SDIN turned off\n"); | |
261 | break; | |
262 | default: | |
263 | dev_err(codec->dev, "Invalid event = 0x%x\n", event); | |
264 | ||
265 | } | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | static int cs35l33_sdout_event(struct snd_soc_dapm_widget *w, | |
271 | struct snd_kcontrol *kcontrol, int event) | |
272 | { | |
273 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); | |
274 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
275 | unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM; | |
276 | unsigned int mask2 = CS35L33_SDOUT_3ST_TDM; | |
277 | unsigned int val, val2; | |
278 | ||
279 | switch (event) { | |
280 | case SND_SOC_DAPM_PRE_PMU: | |
281 | if (priv->is_tdm_mode) { | |
282 | /* set sdout_3st_i2s and reset pdn_tdm */ | |
283 | val = CS35L33_SDOUT_3ST_I2S; | |
284 | /* reset sdout_3st_tdm */ | |
285 | val2 = 0; | |
286 | } else { | |
287 | /* reset sdout_3st_i2s and set pdn_tdm */ | |
288 | val = CS35L33_PDN_TDM; | |
289 | /* set sdout_3st_tdm */ | |
290 | val2 = CS35L33_SDOUT_3ST_TDM; | |
291 | } | |
292 | dev_dbg(codec->dev, "SDOUT turned on\n"); | |
293 | break; | |
294 | case SND_SOC_DAPM_PRE_PMD: | |
295 | val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM; | |
296 | val2 = CS35L33_SDOUT_3ST_TDM; | |
297 | dev_dbg(codec->dev, "SDOUT turned off\n"); | |
298 | break; | |
299 | default: | |
300 | dev_err(codec->dev, "Invalid event = 0x%x\n", event); | |
301 | return 0; | |
302 | } | |
303 | ||
304 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, | |
305 | mask, val); | |
306 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
307 | mask2, val2); | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = { | |
313 | ||
314 | SND_SOC_DAPM_OUTPUT("SPK"), | |
315 | SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0, | |
316 | cs35l33_spkrdrv_event, | |
317 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), | |
318 | SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2, | |
319 | 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU | | |
320 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), | |
321 | ||
322 | SND_SOC_DAPM_INPUT("MON"), | |
323 | ||
324 | SND_SOC_DAPM_ADC("VMON", NULL, | |
325 | CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1), | |
326 | SND_SOC_DAPM_ADC("IMON", NULL, | |
327 | CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1), | |
328 | SND_SOC_DAPM_ADC("VPMON", NULL, | |
329 | CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1), | |
330 | SND_SOC_DAPM_ADC("VBSTMON", NULL, | |
331 | CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1), | |
332 | ||
333 | SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0, | |
334 | cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU | | |
335 | SND_SOC_DAPM_PRE_PMD), | |
336 | }; | |
337 | ||
338 | static const struct snd_soc_dapm_route cs35l33_audio_map[] = { | |
339 | {"SDIN", NULL, "CS35L33 Playback"}, | |
340 | {"SPKDRV", NULL, "SDIN"}, | |
341 | {"SPK", NULL, "SPKDRV"}, | |
342 | ||
343 | {"VMON", NULL, "MON"}, | |
344 | {"IMON", NULL, "MON"}, | |
345 | ||
346 | {"SDOUT", NULL, "VMON"}, | |
347 | {"SDOUT", NULL, "IMON"}, | |
348 | {"CS35L33 Capture", NULL, "SDOUT"}, | |
349 | }; | |
350 | ||
351 | static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = { | |
352 | {"SPKDRV", NULL, "VPMON"}, | |
353 | {"VPMON", NULL, "CS35L33 Playback"}, | |
354 | }; | |
355 | ||
356 | static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = { | |
357 | {"SDOUT", NULL, "VPMON"}, | |
358 | {"VPMON", NULL, "MON"}, | |
359 | {"SDOUT", NULL, "VBSTMON"}, | |
360 | {"VBSTMON", NULL, "MON"}, | |
361 | }; | |
362 | ||
363 | static int cs35l33_set_bias_level(struct snd_soc_codec *codec, | |
364 | enum snd_soc_bias_level level) | |
365 | { | |
366 | unsigned int val; | |
3333cb71 PH |
367 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); |
368 | ||
369 | switch (level) { | |
370 | case SND_SOC_BIAS_ON: | |
371 | break; | |
372 | case SND_SOC_BIAS_PREPARE: | |
373 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, | |
374 | CS35L33_PDN_ALL, 0); | |
375 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
376 | CS35L33_MCLKDIS, 0); | |
377 | break; | |
378 | case SND_SOC_BIAS_STANDBY: | |
379 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL1, | |
380 | CS35L33_PDN_ALL, CS35L33_PDN_ALL); | |
381 | regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val); | |
382 | usleep_range(1000, 1100); | |
383 | if (val & CS35L33_PDN_DONE) | |
384 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
385 | CS35L33_MCLKDIS, CS35L33_MCLKDIS); | |
386 | break; | |
387 | case SND_SOC_BIAS_OFF: | |
388 | break; | |
389 | default: | |
390 | return -EINVAL; | |
391 | } | |
392 | ||
3333cb71 PH |
393 | return 0; |
394 | } | |
395 | ||
396 | struct cs35l33_mclk_div { | |
397 | int mclk; | |
398 | int srate; | |
399 | u8 adsp_rate; | |
400 | u8 int_fs_ratio; | |
401 | }; | |
402 | ||
403 | static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = { | |
404 | /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */ | |
405 | {5644800, 11025, 0x4, CS35L33_INT_FS_RATE}, | |
406 | {5644800, 22050, 0x8, CS35L33_INT_FS_RATE}, | |
407 | {5644800, 44100, 0xC, CS35L33_INT_FS_RATE}, | |
408 | ||
409 | {6000000, 8000, 0x1, 0}, | |
410 | {6000000, 11025, 0x2, 0}, | |
411 | {6000000, 11029, 0x3, 0}, | |
412 | {6000000, 12000, 0x4, 0}, | |
413 | {6000000, 16000, 0x5, 0}, | |
414 | {6000000, 22050, 0x6, 0}, | |
415 | {6000000, 22059, 0x7, 0}, | |
416 | {6000000, 24000, 0x8, 0}, | |
417 | {6000000, 32000, 0x9, 0}, | |
418 | {6000000, 44100, 0xA, 0}, | |
419 | {6000000, 44118, 0xB, 0}, | |
420 | {6000000, 48000, 0xC, 0}, | |
421 | ||
422 | {6144000, 8000, 0x1, CS35L33_INT_FS_RATE}, | |
423 | {6144000, 12000, 0x4, CS35L33_INT_FS_RATE}, | |
424 | {6144000, 16000, 0x5, CS35L33_INT_FS_RATE}, | |
425 | {6144000, 24000, 0x8, CS35L33_INT_FS_RATE}, | |
426 | {6144000, 32000, 0x9, CS35L33_INT_FS_RATE}, | |
427 | {6144000, 48000, 0xC, CS35L33_INT_FS_RATE}, | |
428 | }; | |
429 | ||
430 | static int cs35l33_get_mclk_coeff(int mclk, int srate) | |
431 | { | |
432 | int i; | |
433 | ||
434 | for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) { | |
435 | if (cs35l33_mclk_coeffs[i].mclk == mclk && | |
436 | cs35l33_mclk_coeffs[i].srate == srate) | |
437 | return i; | |
438 | } | |
439 | return -EINVAL; | |
440 | } | |
441 | ||
442 | static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
443 | { | |
444 | struct snd_soc_codec *codec = codec_dai->codec; | |
445 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
446 | ||
447 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
448 | case SND_SOC_DAIFMT_CBM_CFM: | |
449 | regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL, | |
450 | CS35L33_MS_MASK, CS35L33_MS_MASK); | |
451 | dev_dbg(codec->dev, "Audio port in master mode\n"); | |
452 | break; | |
453 | case SND_SOC_DAIFMT_CBS_CFS: | |
454 | regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL, | |
455 | CS35L33_MS_MASK, 0); | |
456 | dev_dbg(codec->dev, "Audio port in slave mode\n"); | |
457 | break; | |
458 | default: | |
459 | return -EINVAL; | |
460 | } | |
461 | ||
462 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
463 | case SND_SOC_DAIFMT_DSP_A: | |
464 | /* | |
465 | * tdm mode in cs35l33 resembles dsp-a mode very | |
466 | * closely, it is dsp-a with fsync shifted left by half bclk | |
467 | */ | |
468 | priv->is_tdm_mode = true; | |
469 | dev_dbg(codec->dev, "Audio port in TDM mode\n"); | |
470 | break; | |
471 | case SND_SOC_DAIFMT_I2S: | |
472 | priv->is_tdm_mode = false; | |
473 | dev_dbg(codec->dev, "Audio port in I2S mode\n"); | |
474 | break; | |
475 | default: | |
476 | return -EINVAL; | |
477 | } | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | static int cs35l33_pcm_hw_params(struct snd_pcm_substream *substream, | |
483 | struct snd_pcm_hw_params *params, | |
484 | struct snd_soc_dai *dai) | |
485 | { | |
486 | struct snd_soc_codec *codec = dai->codec; | |
487 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
488 | int sample_size = params_width(params); | |
489 | int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params)); | |
490 | ||
491 | if (coeff < 0) | |
492 | return coeff; | |
493 | ||
494 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
495 | CS35L33_ADSP_FS | CS35L33_INT_FS_RATE, | |
496 | cs35l33_mclk_coeffs[coeff].int_fs_ratio | |
497 | | cs35l33_mclk_coeffs[coeff].adsp_rate); | |
498 | ||
499 | if (priv->is_tdm_mode) { | |
500 | sample_size = (sample_size / 8) - 1; | |
501 | if (sample_size > 2) | |
502 | sample_size = 2; | |
503 | regmap_update_bits(priv->regmap, CS35L33_RX_AUD, | |
504 | CS35L33_AUDIN_RX_DEPTH, | |
505 | sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT); | |
506 | } | |
507 | ||
508 | dev_dbg(codec->dev, "sample rate=%d, bits per sample=%d\n", | |
509 | params_rate(params), params_width(params)); | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
514 | static const unsigned int cs35l33_src_rates[] = { | |
515 | 8000, 11025, 11029, 12000, 16000, 22050, | |
516 | 22059, 24000, 32000, 44100, 44118, 48000 | |
517 | }; | |
518 | ||
519 | static const struct snd_pcm_hw_constraint_list cs35l33_constraints = { | |
520 | .count = ARRAY_SIZE(cs35l33_src_rates), | |
521 | .list = cs35l33_src_rates, | |
522 | }; | |
523 | ||
524 | static int cs35l33_pcm_startup(struct snd_pcm_substream *substream, | |
525 | struct snd_soc_dai *dai) | |
526 | { | |
527 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
528 | SNDRV_PCM_HW_PARAM_RATE, | |
529 | &cs35l33_constraints); | |
530 | return 0; | |
531 | } | |
532 | ||
533 | static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate) | |
534 | { | |
535 | struct snd_soc_codec *codec = dai->codec; | |
536 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
537 | ||
538 | if (tristate) { | |
539 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, | |
540 | CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S); | |
541 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
542 | CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM); | |
543 | } else { | |
544 | regmap_update_bits(priv->regmap, CS35L33_PWRCTL2, | |
545 | CS35L33_SDOUT_3ST_I2S, 0); | |
546 | regmap_update_bits(priv->regmap, CS35L33_CLK_CTL, | |
547 | CS35L33_SDOUT_3ST_TDM, 0); | |
548 | } | |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
553 | static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, | |
554 | unsigned int rx_mask, int slots, int slot_width) | |
555 | { | |
556 | struct snd_soc_codec *codec = dai->codec; | |
557 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); | |
558 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
559 | unsigned int reg, bit_pos, i; | |
560 | int slot, slot_num; | |
561 | ||
562 | if (slot_width != 8) | |
563 | return -EINVAL; | |
564 | ||
565 | /* scan rx_mask for aud slot */ | |
566 | slot = ffs(rx_mask) - 1; | |
567 | if (slot >= 0) { | |
568 | regmap_update_bits(priv->regmap, CS35L33_RX_AUD, | |
569 | CS35L33_X_LOC, slot); | |
570 | dev_dbg(codec->dev, "Audio starts from slots %d", slot); | |
571 | } | |
572 | ||
573 | /* | |
574 | * scan tx_mask: vmon(2 slots); imon (2 slots); | |
575 | * vpmon (1 slot) vbstmon (1 slot) | |
576 | */ | |
577 | slot = ffs(tx_mask) - 1; | |
578 | slot_num = 0; | |
579 | ||
580 | for (i = 0; i < 2 ; i++) { | |
581 | /* disable vpmon/vbstmon: enable later if set in tx_mask */ | |
582 | regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i, | |
583 | CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE | |
584 | | CS35L33_X_LOC); | |
585 | } | |
586 | ||
587 | /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/ | |
588 | snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route, | |
589 | ARRAY_SIZE(cs35l33_vp_vbst_mon_route)); | |
590 | ||
591 | while (slot >= 0) { | |
592 | /* configure VMON_TX_LOC */ | |
593 | if (slot_num == 0) { | |
594 | regmap_update_bits(priv->regmap, CS35L33_TX_VMON, | |
595 | CS35L33_X_STATE | CS35L33_X_LOC, slot); | |
596 | dev_dbg(codec->dev, "VMON enabled in slots %d-%d", | |
597 | slot, slot + 1); | |
598 | } | |
599 | ||
600 | /* configure IMON_TX_LOC */ | |
601 | if (slot_num == 3) { | |
602 | regmap_update_bits(priv->regmap, CS35L33_TX_IMON, | |
603 | CS35L33_X_STATE | CS35L33_X_LOC, slot); | |
604 | dev_dbg(codec->dev, "IMON enabled in slots %d-%d", | |
605 | slot, slot + 1); | |
606 | } | |
607 | ||
608 | /* configure VPMON_TX_LOC */ | |
609 | if (slot_num == 4) { | |
610 | regmap_update_bits(priv->regmap, CS35L33_TX_VPMON, | |
611 | CS35L33_X_STATE | CS35L33_X_LOC, slot); | |
612 | snd_soc_dapm_add_routes(dapm, | |
613 | &cs35l33_vp_vbst_mon_route[0], 2); | |
614 | dev_dbg(codec->dev, "VPMON enabled in slots %d", slot); | |
615 | } | |
616 | ||
617 | /* configure VBSTMON_TX_LOC */ | |
618 | if (slot_num == 5) { | |
619 | regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON, | |
620 | CS35L33_X_STATE | CS35L33_X_LOC, slot); | |
621 | snd_soc_dapm_add_routes(dapm, | |
622 | &cs35l33_vp_vbst_mon_route[2], 2); | |
623 | dev_dbg(codec->dev, | |
624 | "VBSTMON enabled in slots %d", slot); | |
625 | } | |
626 | ||
627 | /* Enable the relevant tx slot */ | |
628 | reg = CS35L33_TX_EN4 - (slot/8); | |
629 | bit_pos = slot - ((slot / 8) * (8)); | |
630 | regmap_update_bits(priv->regmap, reg, | |
631 | 1 << bit_pos, 1 << bit_pos); | |
632 | ||
633 | tx_mask &= ~(1 << slot); | |
634 | slot = ffs(tx_mask) - 1; | |
635 | slot_num++; | |
636 | } | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | static int cs35l33_codec_set_sysclk(struct snd_soc_codec *codec, | |
642 | int clk_id, int source, unsigned int freq, int dir) | |
643 | { | |
644 | struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec); | |
645 | ||
646 | switch (freq) { | |
647 | case CS35L33_MCLK_5644: | |
648 | case CS35L33_MCLK_6: | |
649 | case CS35L33_MCLK_6144: | |
650 | regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, | |
651 | CS35L33_MCLKDIV2, 0); | |
652 | cs35l33->mclk_int = freq; | |
653 | break; | |
654 | case CS35L33_MCLK_11289: | |
655 | case CS35L33_MCLK_12: | |
656 | case CS35L33_MCLK_12288: | |
657 | regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, | |
658 | CS35L33_MCLKDIV2, CS35L33_MCLKDIV2); | |
659 | cs35l33->mclk_int = freq/2; | |
660 | break; | |
661 | default: | |
662 | cs35l33->mclk_int = 0; | |
663 | return -EINVAL; | |
664 | } | |
665 | ||
666 | dev_dbg(codec->dev, "external mclk freq=%d, internal mclk freq=%d\n", | |
667 | freq, cs35l33->mclk_int); | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | static const struct snd_soc_dai_ops cs35l33_ops = { | |
673 | .startup = cs35l33_pcm_startup, | |
674 | .set_tristate = cs35l33_set_tristate, | |
675 | .set_fmt = cs35l33_set_dai_fmt, | |
676 | .hw_params = cs35l33_pcm_hw_params, | |
677 | .set_tdm_slot = cs35l33_set_tdm_slot, | |
678 | }; | |
679 | ||
680 | static struct snd_soc_dai_driver cs35l33_dai = { | |
681 | .name = "cs35l33-dai", | |
682 | .id = 0, | |
683 | .playback = { | |
684 | .stream_name = "CS35L33 Playback", | |
685 | .channels_min = 1, | |
686 | .channels_max = 1, | |
687 | .rates = CS35L33_RATES, | |
688 | .formats = CS35L33_FORMATS, | |
689 | }, | |
690 | .capture = { | |
691 | .stream_name = "CS35L33 Capture", | |
692 | .channels_min = 2, | |
693 | .channels_max = 2, | |
694 | .rates = CS35L33_RATES, | |
695 | .formats = CS35L33_FORMATS, | |
696 | }, | |
697 | .ops = &cs35l33_ops, | |
698 | .symmetric_rates = 1, | |
699 | }; | |
700 | ||
701 | static int cs35l33_set_hg_data(struct snd_soc_codec *codec, | |
702 | struct cs35l33_pdata *pdata) | |
703 | { | |
704 | struct cs35l33_hg *hg_config = &pdata->hg_config; | |
705 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); | |
706 | struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec); | |
707 | ||
708 | if (hg_config->enable_hg_algo) { | |
709 | regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, | |
710 | CS35L33_MEM_DEPTH_MASK, | |
711 | hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT); | |
712 | regmap_write(priv->regmap, CS35L33_HG_REL_RATE, | |
713 | hg_config->release_rate); | |
714 | regmap_update_bits(priv->regmap, CS35L33_HG_HEAD, | |
715 | CS35L33_HD_RM_MASK, | |
716 | hg_config->hd_rm << CS35L33_HD_RM_SHIFT); | |
717 | regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, | |
718 | CS35L33_LDO_THLD_MASK, | |
719 | hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT); | |
720 | regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL, | |
721 | CS35L33_LDO_DISABLE_MASK, | |
722 | hg_config->ldo_path_disable << | |
723 | CS35L33_LDO_DISABLE_SHIFT); | |
724 | regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, | |
725 | CS35L33_LDO_ENTRY_DELAY_MASK, | |
726 | hg_config->ldo_entry_delay << | |
727 | CS35L33_LDO_ENTRY_DELAY_SHIFT); | |
728 | if (hg_config->vp_hg_auto) { | |
729 | regmap_update_bits(priv->regmap, CS35L33_HG_EN, | |
730 | CS35L33_VP_HG_AUTO_MASK, | |
731 | CS35L33_VP_HG_AUTO_MASK); | |
732 | snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route, | |
733 | ARRAY_SIZE(cs35l33_vphg_auto_route)); | |
734 | } | |
735 | regmap_update_bits(priv->regmap, CS35L33_HG_EN, | |
736 | CS35L33_VP_HG_MASK, | |
737 | hg_config->vp_hg << CS35L33_VP_HG_SHIFT); | |
738 | regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, | |
739 | CS35L33_VP_HG_RATE_MASK, | |
740 | hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT); | |
741 | regmap_update_bits(priv->regmap, CS35L33_LDO_DEL, | |
742 | CS35L33_VP_HG_VA_MASK, | |
743 | hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT); | |
744 | regmap_update_bits(priv->regmap, CS35L33_HG_EN, | |
745 | CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK); | |
746 | } | |
747 | return 0; | |
748 | } | |
749 | ||
750 | static int cs35l33_set_bst_ipk(struct snd_soc_codec *codec, unsigned int bst) | |
751 | { | |
752 | struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec); | |
753 | int ret = 0, steps = 0; | |
754 | ||
755 | /* Boost current in uA */ | |
756 | if (bst > 3600000 || bst < 1850000) { | |
757 | dev_err(codec->dev, "Invalid boost current %d\n", bst); | |
758 | ret = -EINVAL; | |
759 | goto err; | |
760 | } | |
761 | ||
762 | if (bst % 15625) { | |
763 | dev_err(codec->dev, "Current not a multiple of 15625uA (%d)\n", | |
764 | bst); | |
765 | ret = -EINVAL; | |
766 | goto err; | |
767 | } | |
768 | ||
769 | while (bst > 1850000) { | |
770 | bst -= 15625; | |
771 | steps++; | |
772 | } | |
773 | ||
774 | regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL, | |
775 | steps+0x70); | |
776 | ||
777 | err: | |
778 | return ret; | |
779 | } | |
780 | ||
781 | static int cs35l33_probe(struct snd_soc_codec *codec) | |
782 | { | |
783 | struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec); | |
784 | ||
785 | cs35l33->codec = codec; | |
786 | pm_runtime_get_sync(codec->dev); | |
787 | ||
788 | regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL, | |
789 | CS35L33_ALIVE_WD_DIS, 0x8); | |
790 | regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2, | |
791 | CS35L33_ALIVE_WD_DIS2, | |
792 | CS35L33_ALIVE_WD_DIS2); | |
793 | ||
794 | /* Set Platform Data */ | |
795 | regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1, | |
796 | CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl); | |
797 | regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL, | |
798 | CS35L33_AMP_DRV_SEL_MASK, | |
799 | cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT); | |
800 | ||
801 | if (cs35l33->pdata.boost_ipk) | |
802 | cs35l33_set_bst_ipk(codec, cs35l33->pdata.boost_ipk); | |
803 | ||
804 | if (cs35l33->enable_soft_ramp) { | |
805 | snd_soc_update_bits(codec, CS35L33_DAC_CTL, | |
806 | CS35L33_DIGSFT, CS35L33_DIGSFT); | |
807 | snd_soc_update_bits(codec, CS35L33_DAC_CTL, | |
808 | CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate); | |
809 | } else { | |
810 | snd_soc_update_bits(codec, CS35L33_DAC_CTL, | |
811 | CS35L33_DIGSFT, 0); | |
812 | } | |
813 | ||
814 | /* update IMON scaling rate if different from default of 0x8 */ | |
815 | if (cs35l33->pdata.imon_adc_scale != 0x8) | |
816 | snd_soc_update_bits(codec, CS35L33_ADC_CTL, | |
817 | CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale); | |
818 | ||
819 | cs35l33_set_hg_data(codec, &(cs35l33->pdata)); | |
820 | ||
821 | /* | |
822 | * unmask important interrupts that causes the chip to enter | |
823 | * speaker safe mode and hence deserves user attention | |
824 | */ | |
825 | regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1, | |
826 | CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT | | |
827 | CS35L33_M_CAL_ERR, 0); | |
828 | ||
829 | pm_runtime_put_sync(codec->dev); | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
834 | static struct snd_soc_codec_driver soc_codec_dev_cs35l33 = { | |
835 | .probe = cs35l33_probe, | |
836 | ||
837 | .set_bias_level = cs35l33_set_bias_level, | |
838 | .set_sysclk = cs35l33_codec_set_sysclk, | |
839 | ||
840 | .dapm_widgets = cs35l33_dapm_widgets, | |
841 | .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets), | |
842 | .dapm_routes = cs35l33_audio_map, | |
843 | .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map), | |
844 | .controls = cs35l33_snd_controls, | |
845 | .num_controls = ARRAY_SIZE(cs35l33_snd_controls), | |
846 | ||
847 | .idle_bias_off = true, | |
848 | }; | |
849 | ||
850 | static const struct regmap_config cs35l33_regmap = { | |
851 | .reg_bits = 8, | |
852 | .val_bits = 8, | |
853 | ||
854 | .max_register = CS35L33_MAX_REGISTER, | |
855 | .reg_defaults = cs35l33_reg, | |
856 | .num_reg_defaults = ARRAY_SIZE(cs35l33_reg), | |
857 | .volatile_reg = cs35l33_volatile_register, | |
858 | .readable_reg = cs35l33_readable_register, | |
859 | .writeable_reg = cs35l33_writeable_register, | |
860 | .cache_type = REGCACHE_RBTREE, | |
861 | .use_single_rw = true, | |
862 | }; | |
863 | ||
20f12f2c | 864 | static int __maybe_unused cs35l33_runtime_resume(struct device *dev) |
3333cb71 PH |
865 | { |
866 | struct cs35l33_private *cs35l33 = dev_get_drvdata(dev); | |
867 | int ret; | |
868 | ||
869 | dev_dbg(dev, "%s\n", __func__); | |
870 | ||
871 | if (cs35l33->reset_gpio) | |
872 | gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); | |
873 | ||
874 | ret = regulator_bulk_enable(cs35l33->num_core_supplies, | |
875 | cs35l33->core_supplies); | |
876 | if (ret != 0) { | |
877 | dev_err(dev, "Failed to enable core supplies: %d\n", ret); | |
878 | return ret; | |
879 | } | |
880 | ||
881 | regcache_cache_only(cs35l33->regmap, false); | |
882 | ||
883 | if (cs35l33->reset_gpio) | |
884 | gpiod_set_value_cansleep(cs35l33->reset_gpio, 1); | |
885 | ||
886 | msleep(CS35L33_BOOT_DELAY); | |
887 | ||
888 | ret = regcache_sync(cs35l33->regmap); | |
889 | if (ret != 0) { | |
890 | dev_err(dev, "Failed to restore register cache\n"); | |
891 | goto err; | |
892 | } | |
893 | ||
894 | return 0; | |
895 | ||
896 | err: | |
897 | regcache_cache_only(cs35l33->regmap, true); | |
898 | regulator_bulk_disable(cs35l33->num_core_supplies, | |
899 | cs35l33->core_supplies); | |
900 | ||
901 | return ret; | |
902 | } | |
903 | ||
20f12f2c | 904 | static int __maybe_unused cs35l33_runtime_suspend(struct device *dev) |
3333cb71 PH |
905 | { |
906 | struct cs35l33_private *cs35l33 = dev_get_drvdata(dev); | |
907 | ||
908 | dev_dbg(dev, "%s\n", __func__); | |
909 | ||
910 | /* redo the calibration in next power up */ | |
911 | cs35l33->amp_cal = false; | |
912 | ||
913 | regcache_cache_only(cs35l33->regmap, true); | |
914 | regcache_mark_dirty(cs35l33->regmap); | |
915 | regulator_bulk_disable(cs35l33->num_core_supplies, | |
916 | cs35l33->core_supplies); | |
917 | ||
918 | return 0; | |
919 | } | |
920 | ||
921 | static const struct dev_pm_ops cs35l33_pm_ops = { | |
922 | SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend, | |
923 | cs35l33_runtime_resume, | |
924 | NULL) | |
925 | }; | |
926 | ||
927 | static int cs35l33_get_hg_data(const struct device_node *np, | |
928 | struct cs35l33_pdata *pdata) | |
929 | { | |
930 | struct device_node *hg; | |
931 | struct cs35l33_hg *hg_config = &pdata->hg_config; | |
932 | u32 val32; | |
933 | ||
934 | hg = of_get_child_by_name(np, "cirrus,hg-algo"); | |
935 | hg_config->enable_hg_algo = hg ? true : false; | |
936 | ||
937 | if (hg_config->enable_hg_algo) { | |
938 | if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0) | |
939 | hg_config->mem_depth = val32; | |
940 | if (of_property_read_u32(hg, "cirrus,release-rate", | |
941 | &val32) >= 0) | |
942 | hg_config->release_rate = val32; | |
943 | if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0) | |
944 | hg_config->ldo_thld = val32; | |
945 | if (of_property_read_u32(hg, "cirrus,ldo-path-disable", | |
946 | &val32) >= 0) | |
947 | hg_config->ldo_path_disable = val32; | |
948 | if (of_property_read_u32(hg, "cirrus,ldo-entry-delay", | |
949 | &val32) >= 0) | |
950 | hg_config->ldo_entry_delay = val32; | |
951 | ||
952 | hg_config->vp_hg_auto = of_property_read_bool(hg, | |
953 | "cirrus,vp-hg-auto"); | |
954 | ||
955 | if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0) | |
956 | hg_config->vp_hg = val32; | |
957 | if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0) | |
958 | hg_config->vp_hg_rate = val32; | |
959 | if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0) | |
960 | hg_config->vp_hg_va = val32; | |
961 | } | |
962 | ||
963 | of_node_put(hg); | |
964 | ||
965 | return 0; | |
966 | } | |
967 | ||
968 | static irqreturn_t cs35l33_irq_thread(int irq, void *data) | |
969 | { | |
970 | struct cs35l33_private *cs35l33 = data; | |
971 | struct snd_soc_codec *codec = cs35l33->codec; | |
972 | unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2; | |
973 | ||
974 | regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2, | |
975 | &sticky_val2); | |
976 | regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1, | |
977 | &sticky_val1); | |
978 | regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2); | |
979 | regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1); | |
980 | ||
981 | /* Check to see if the unmasked bits are active, | |
982 | * if not then exit. | |
983 | */ | |
984 | if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2)) | |
985 | return IRQ_NONE; | |
986 | ||
987 | regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1, | |
988 | ¤t_val); | |
989 | ||
990 | /* handle the interrupts */ | |
991 | ||
992 | if (sticky_val1 & CS35L33_AMP_SHORT) { | |
993 | dev_crit(codec->dev, "Amp short error\n"); | |
994 | if (!(current_val & CS35L33_AMP_SHORT)) { | |
995 | dev_dbg(codec->dev, | |
996 | "Amp short error release\n"); | |
997 | regmap_update_bits(cs35l33->regmap, | |
998 | CS35L33_AMP_CTL, | |
999 | CS35L33_AMP_SHORT_RLS, 0); | |
1000 | regmap_update_bits(cs35l33->regmap, | |
1001 | CS35L33_AMP_CTL, | |
1002 | CS35L33_AMP_SHORT_RLS, | |
1003 | CS35L33_AMP_SHORT_RLS); | |
1004 | regmap_update_bits(cs35l33->regmap, | |
1005 | CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS, | |
1006 | 0); | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | if (sticky_val1 & CS35L33_CAL_ERR) { | |
1011 | dev_err(codec->dev, "Cal error\n"); | |
1012 | ||
1013 | /* redo the calibration in next power up */ | |
1014 | cs35l33->amp_cal = false; | |
1015 | ||
1016 | if (!(current_val & CS35L33_CAL_ERR)) { | |
1017 | dev_dbg(codec->dev, "Cal error release\n"); | |
1018 | regmap_update_bits(cs35l33->regmap, | |
1019 | CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, | |
1020 | 0); | |
1021 | regmap_update_bits(cs35l33->regmap, | |
1022 | CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, | |
1023 | CS35L33_CAL_ERR_RLS); | |
1024 | regmap_update_bits(cs35l33->regmap, | |
1025 | CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS, | |
1026 | 0); | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | if (sticky_val1 & CS35L33_OTE) { | |
1031 | dev_crit(codec->dev, "Over temperature error\n"); | |
1032 | if (!(current_val & CS35L33_OTE)) { | |
1033 | dev_dbg(codec->dev, | |
1034 | "Over temperature error release\n"); | |
1035 | regmap_update_bits(cs35l33->regmap, | |
1036 | CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0); | |
1037 | regmap_update_bits(cs35l33->regmap, | |
1038 | CS35L33_AMP_CTL, CS35L33_OTE_RLS, | |
1039 | CS35L33_OTE_RLS); | |
1040 | regmap_update_bits(cs35l33->regmap, | |
1041 | CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0); | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | if (sticky_val1 & CS35L33_OTW) { | |
1046 | dev_err(codec->dev, "Over temperature warning\n"); | |
1047 | if (!(current_val & CS35L33_OTW)) { | |
1048 | dev_dbg(codec->dev, | |
1049 | "Over temperature warning release\n"); | |
1050 | regmap_update_bits(cs35l33->regmap, | |
1051 | CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0); | |
1052 | regmap_update_bits(cs35l33->regmap, | |
1053 | CS35L33_AMP_CTL, CS35L33_OTW_RLS, | |
1054 | CS35L33_OTW_RLS); | |
1055 | regmap_update_bits(cs35l33->regmap, | |
1056 | CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0); | |
1057 | } | |
1058 | } | |
1059 | if (CS35L33_ALIVE_ERR & sticky_val1) | |
1060 | dev_err(codec->dev, "ERROR: ADSPCLK Interrupt\n"); | |
1061 | ||
1062 | if (CS35L33_MCLK_ERR & sticky_val1) | |
1063 | dev_err(codec->dev, "ERROR: MCLK Interrupt\n"); | |
1064 | ||
1065 | if (CS35L33_VMON_OVFL & sticky_val2) | |
1066 | dev_err(codec->dev, | |
1067 | "ERROR: VMON Overflow Interrupt\n"); | |
1068 | ||
1069 | if (CS35L33_IMON_OVFL & sticky_val2) | |
1070 | dev_err(codec->dev, | |
1071 | "ERROR: IMON Overflow Interrupt\n"); | |
1072 | ||
1073 | if (CS35L33_VPMON_OVFL & sticky_val2) | |
1074 | dev_err(codec->dev, | |
1075 | "ERROR: VPMON Overflow Interrupt\n"); | |
1076 | ||
1077 | return IRQ_HANDLED; | |
1078 | } | |
1079 | ||
1080 | static const char * const cs35l33_core_supplies[] = { | |
1081 | "VA", | |
1082 | "VP", | |
1083 | }; | |
1084 | ||
1085 | static int cs35l33_of_get_pdata(struct device *dev, | |
1086 | struct cs35l33_private *cs35l33) | |
1087 | { | |
1088 | struct device_node *np = dev->of_node; | |
1089 | struct cs35l33_pdata *pdata = &cs35l33->pdata; | |
1090 | u32 val32; | |
1091 | ||
1092 | if (!np) | |
1093 | return 0; | |
1094 | ||
1095 | if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) { | |
1096 | pdata->boost_ctl = val32; | |
1097 | pdata->amp_drv_sel = 1; | |
1098 | } | |
1099 | ||
1100 | if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) { | |
1101 | pdata->ramp_rate = val32; | |
1102 | cs35l33->enable_soft_ramp = true; | |
1103 | } | |
1104 | ||
1105 | if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0) | |
1106 | pdata->boost_ipk = val32; | |
1107 | ||
1108 | if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) { | |
1109 | if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6)) | |
1110 | pdata->imon_adc_scale = val32; | |
1111 | else | |
1112 | /* use default value */ | |
1113 | pdata->imon_adc_scale = 0x8; | |
1114 | } else { | |
1115 | /* use default value */ | |
1116 | pdata->imon_adc_scale = 0x8; | |
1117 | } | |
1118 | ||
1119 | cs35l33_get_hg_data(np, pdata); | |
1120 | ||
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | static int cs35l33_i2c_probe(struct i2c_client *i2c_client, | |
1125 | const struct i2c_device_id *id) | |
1126 | { | |
1127 | struct cs35l33_private *cs35l33; | |
1128 | struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev); | |
1129 | int ret, devid, i; | |
1130 | unsigned int reg; | |
1131 | ||
1132 | cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private), | |
1133 | GFP_KERNEL); | |
1134 | if (!cs35l33) | |
1135 | return -ENOMEM; | |
1136 | ||
1137 | i2c_set_clientdata(i2c_client, cs35l33); | |
1138 | cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap); | |
1139 | if (IS_ERR(cs35l33->regmap)) { | |
1140 | ret = PTR_ERR(cs35l33->regmap); | |
1141 | dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); | |
1142 | return ret; | |
1143 | } | |
1144 | ||
1145 | regcache_cache_only(cs35l33->regmap, true); | |
1146 | ||
1147 | for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++) | |
1148 | cs35l33->core_supplies[i].supply | |
1149 | = cs35l33_core_supplies[i]; | |
1150 | cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies); | |
1151 | ||
1152 | ret = devm_regulator_bulk_get(&i2c_client->dev, | |
1153 | cs35l33->num_core_supplies, | |
1154 | cs35l33->core_supplies); | |
1155 | if (ret != 0) { | |
1156 | dev_err(&i2c_client->dev, | |
1157 | "Failed to request core supplies: %d\n", | |
1158 | ret); | |
1159 | return ret; | |
1160 | } | |
1161 | ||
1162 | if (pdata) { | |
1163 | cs35l33->pdata = *pdata; | |
1164 | } else { | |
1165 | cs35l33_of_get_pdata(&i2c_client->dev, cs35l33); | |
1166 | pdata = &cs35l33->pdata; | |
1167 | } | |
1168 | ||
1169 | ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL, | |
1170 | cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW, | |
1171 | "cs35l33", cs35l33); | |
1172 | if (ret != 0) | |
1173 | dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret); | |
1174 | ||
1175 | /* We could issue !RST or skip it based on AMP topology */ | |
1176 | cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, | |
1177 | "reset-gpios", GPIOD_OUT_HIGH); | |
410fe39c | 1178 | if (IS_ERR(cs35l33->reset_gpio)) { |
3333cb71 PH |
1179 | dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n", |
1180 | __func__); | |
1181 | return PTR_ERR(cs35l33->reset_gpio); | |
1182 | } | |
1183 | ||
1184 | ret = regulator_bulk_enable(cs35l33->num_core_supplies, | |
1185 | cs35l33->core_supplies); | |
1186 | if (ret != 0) { | |
1187 | dev_err(&i2c_client->dev, | |
1188 | "Failed to enable core supplies: %d\n", | |
1189 | ret); | |
beefe4a9 | 1190 | return ret; |
3333cb71 PH |
1191 | } |
1192 | ||
1193 | if (cs35l33->reset_gpio) | |
1194 | gpiod_set_value_cansleep(cs35l33->reset_gpio, 1); | |
1195 | ||
1196 | msleep(CS35L33_BOOT_DELAY); | |
1197 | regcache_cache_only(cs35l33->regmap, false); | |
1198 | ||
1199 | /* initialize codec */ | |
1200 | ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, ®); | |
1201 | devid = (reg & 0xFF) << 12; | |
1202 | ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, ®); | |
1203 | devid |= (reg & 0xFF) << 4; | |
1204 | ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, ®); | |
1205 | devid |= (reg & 0xF0) >> 4; | |
1206 | ||
1207 | if (devid != CS35L33_CHIP_ID) { | |
1208 | dev_err(&i2c_client->dev, | |
1209 | "CS35L33 Device ID (%X). Expected ID %X\n", | |
1210 | devid, CS35L33_CHIP_ID); | |
1211 | goto err_enable; | |
1212 | } | |
1213 | ||
1214 | ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®); | |
1215 | if (ret < 0) { | |
1216 | dev_err(&i2c_client->dev, "Get Revision ID failed\n"); | |
1217 | goto err_enable; | |
1218 | } | |
1219 | ||
1220 | dev_info(&i2c_client->dev, | |
5d78b027 | 1221 | "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF); |
3333cb71 PH |
1222 | |
1223 | ret = regmap_register_patch(cs35l33->regmap, | |
1224 | cs35l33_patch, ARRAY_SIZE(cs35l33_patch)); | |
1225 | if (ret < 0) { | |
1226 | dev_err(&i2c_client->dev, | |
1227 | "Error in applying regmap patch: %d\n", ret); | |
1228 | goto err_enable; | |
1229 | } | |
1230 | ||
1231 | /* disable mclk and tdm */ | |
1232 | regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL, | |
1233 | CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM, | |
1234 | CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM); | |
1235 | ||
1236 | pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100); | |
1237 | pm_runtime_use_autosuspend(&i2c_client->dev); | |
1238 | pm_runtime_set_active(&i2c_client->dev); | |
1239 | pm_runtime_enable(&i2c_client->dev); | |
1240 | ||
1241 | ret = snd_soc_register_codec(&i2c_client->dev, | |
1242 | &soc_codec_dev_cs35l33, &cs35l33_dai, 1); | |
1243 | if (ret < 0) { | |
1244 | dev_err(&i2c_client->dev, "%s: Register codec failed\n", | |
1245 | __func__); | |
beefe4a9 | 1246 | goto err_enable; |
3333cb71 PH |
1247 | } |
1248 | ||
1249 | return 0; | |
1250 | ||
1251 | err_enable: | |
1252 | regulator_bulk_disable(cs35l33->num_core_supplies, | |
1253 | cs35l33->core_supplies); | |
3333cb71 PH |
1254 | |
1255 | return ret; | |
1256 | } | |
1257 | ||
1258 | static int cs35l33_i2c_remove(struct i2c_client *client) | |
1259 | { | |
1260 | struct cs35l33_private *cs35l33 = i2c_get_clientdata(client); | |
1261 | ||
1262 | snd_soc_unregister_codec(&client->dev); | |
1263 | ||
1264 | if (cs35l33->reset_gpio) | |
1265 | gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); | |
1266 | ||
1267 | pm_runtime_disable(&client->dev); | |
1268 | regulator_bulk_disable(cs35l33->num_core_supplies, | |
1269 | cs35l33->core_supplies); | |
3333cb71 PH |
1270 | |
1271 | return 0; | |
1272 | } | |
1273 | ||
1274 | static const struct of_device_id cs35l33_of_match[] = { | |
1275 | { .compatible = "cirrus,cs35l33", }, | |
1276 | {}, | |
1277 | }; | |
1278 | MODULE_DEVICE_TABLE(of, cs35l33_of_match); | |
1279 | ||
1280 | static const struct i2c_device_id cs35l33_id[] = { | |
1281 | {"cs35l33", 0}, | |
1282 | {} | |
1283 | }; | |
1284 | ||
1285 | MODULE_DEVICE_TABLE(i2c, cs35l33_id); | |
1286 | ||
1287 | static struct i2c_driver cs35l33_i2c_driver = { | |
1288 | .driver = { | |
1289 | .name = "cs35l33", | |
3333cb71 PH |
1290 | .pm = &cs35l33_pm_ops, |
1291 | .of_match_table = cs35l33_of_match, | |
1292 | ||
1293 | }, | |
1294 | .id_table = cs35l33_id, | |
1295 | .probe = cs35l33_i2c_probe, | |
1296 | .remove = cs35l33_i2c_remove, | |
1297 | ||
1298 | }; | |
1299 | module_i2c_driver(cs35l33_i2c_driver); | |
1300 | ||
1301 | MODULE_DESCRIPTION("ASoC CS35L33 driver"); | |
1302 | MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>"); | |
1303 | MODULE_LICENSE("GPL"); |