Commit | Line | Data |
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9b34e6cc ZZ |
1 | /* |
2 | * sgtl5000.c -- SGTL5000 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/moduleparam.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/delay.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/pm.h> | |
17 | #include <linux/i2c.h> | |
18 | #include <linux/clk.h> | |
bd0593f5 | 19 | #include <linux/log2.h> |
e5d80e82 | 20 | #include <linux/regmap.h> |
9b34e6cc ZZ |
21 | #include <linux/regulator/driver.h> |
22 | #include <linux/regulator/machine.h> | |
23 | #include <linux/regulator/consumer.h> | |
58e49424 | 24 | #include <linux/of_device.h> |
9b34e6cc ZZ |
25 | #include <sound/core.h> |
26 | #include <sound/tlv.h> | |
27 | #include <sound/pcm.h> | |
28 | #include <sound/pcm_params.h> | |
29 | #include <sound/soc.h> | |
30 | #include <sound/soc-dapm.h> | |
31 | #include <sound/initval.h> | |
9b34e6cc ZZ |
32 | |
33 | #include "sgtl5000.h" | |
34 | ||
35 | #define SGTL5000_DAP_REG_OFFSET 0x0100 | |
36 | #define SGTL5000_MAX_REG_OFFSET 0x013A | |
37 | ||
151798f8 | 38 | /* default value of sgtl5000 registers */ |
e5d80e82 | 39 | static const struct reg_default sgtl5000_reg_defaults[] = { |
29aa37cd | 40 | { SGTL5000_CHIP_DIG_POWER, 0x0000 }, |
e5d80e82 FE |
41 | { SGTL5000_CHIP_CLK_CTRL, 0x0008 }, |
42 | { SGTL5000_CHIP_I2S_CTRL, 0x0010 }, | |
016fcab8 | 43 | { SGTL5000_CHIP_SSS_CTRL, 0x0010 }, |
29aa37cd | 44 | { SGTL5000_CHIP_ADCDAC_CTRL, 0x020c }, |
e5d80e82 FE |
45 | { SGTL5000_CHIP_DAC_VOL, 0x3c3c }, |
46 | { SGTL5000_CHIP_PAD_STRENGTH, 0x015f }, | |
29aa37cd | 47 | { SGTL5000_CHIP_ANA_ADC_CTRL, 0x0000 }, |
e5d80e82 FE |
48 | { SGTL5000_CHIP_ANA_HP_CTRL, 0x1818 }, |
49 | { SGTL5000_CHIP_ANA_CTRL, 0x0111 }, | |
29aa37cd FE |
50 | { SGTL5000_CHIP_LINREG_CTRL, 0x0000 }, |
51 | { SGTL5000_CHIP_REF_CTRL, 0x0000 }, | |
52 | { SGTL5000_CHIP_MIC_CTRL, 0x0000 }, | |
53 | { SGTL5000_CHIP_LINE_OUT_CTRL, 0x0000 }, | |
e5d80e82 FE |
54 | { SGTL5000_CHIP_LINE_OUT_VOL, 0x0404 }, |
55 | { SGTL5000_CHIP_ANA_POWER, 0x7060 }, | |
56 | { SGTL5000_CHIP_PLL_CTRL, 0x5000 }, | |
29aa37cd FE |
57 | { SGTL5000_CHIP_CLK_TOP_CTRL, 0x0000 }, |
58 | { SGTL5000_CHIP_ANA_STATUS, 0x0000 }, | |
59 | { SGTL5000_CHIP_SHORT_CTRL, 0x0000 }, | |
60 | { SGTL5000_CHIP_ANA_TEST2, 0x0000 }, | |
61 | { SGTL5000_DAP_CTRL, 0x0000 }, | |
62 | { SGTL5000_DAP_PEQ, 0x0000 }, | |
e5d80e82 FE |
63 | { SGTL5000_DAP_BASS_ENHANCE, 0x0040 }, |
64 | { SGTL5000_DAP_BASS_ENHANCE_CTRL, 0x051f }, | |
29aa37cd | 65 | { SGTL5000_DAP_AUDIO_EQ, 0x0000 }, |
e5d80e82 FE |
66 | { SGTL5000_DAP_SURROUND, 0x0040 }, |
67 | { SGTL5000_DAP_EQ_BASS_BAND0, 0x002f }, | |
68 | { SGTL5000_DAP_EQ_BASS_BAND1, 0x002f }, | |
69 | { SGTL5000_DAP_EQ_BASS_BAND2, 0x002f }, | |
70 | { SGTL5000_DAP_EQ_BASS_BAND3, 0x002f }, | |
71 | { SGTL5000_DAP_EQ_BASS_BAND4, 0x002f }, | |
72 | { SGTL5000_DAP_MAIN_CHAN, 0x8000 }, | |
29aa37cd | 73 | { SGTL5000_DAP_MIX_CHAN, 0x0000 }, |
e5d80e82 FE |
74 | { SGTL5000_DAP_AVC_CTRL, 0x0510 }, |
75 | { SGTL5000_DAP_AVC_THRESHOLD, 0x1473 }, | |
76 | { SGTL5000_DAP_AVC_ATTACK, 0x0028 }, | |
77 | { SGTL5000_DAP_AVC_DECAY, 0x0050 }, | |
9b34e6cc ZZ |
78 | }; |
79 | ||
80 | /* regulator supplies for sgtl5000, VDDD is an optional external supply */ | |
81 | enum sgtl5000_regulator_supplies { | |
82 | VDDA, | |
83 | VDDIO, | |
84 | VDDD, | |
85 | SGTL5000_SUPPLY_NUM | |
86 | }; | |
87 | ||
88 | /* vddd is optional supply */ | |
89 | static const char *supply_names[SGTL5000_SUPPLY_NUM] = { | |
90 | "VDDA", | |
91 | "VDDIO", | |
92 | "VDDD" | |
93 | }; | |
94 | ||
95 | #define LDO_CONSUMER_NAME "VDDD_LDO" | |
96 | #define LDO_VOLTAGE 1200000 | |
97 | ||
98 | static struct regulator_consumer_supply ldo_consumer[] = { | |
99 | REGULATOR_SUPPLY(LDO_CONSUMER_NAME, NULL), | |
100 | }; | |
101 | ||
61a142b7 | 102 | static struct regulator_init_data ldo_init_data = { |
9b34e6cc | 103 | .constraints = { |
cd041f64 FE |
104 | .min_uV = 1200000, |
105 | .max_uV = 1200000, | |
9b34e6cc ZZ |
106 | .valid_modes_mask = REGULATOR_MODE_NORMAL, |
107 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | |
108 | }, | |
109 | .num_consumer_supplies = 1, | |
110 | .consumer_supplies = &ldo_consumer[0], | |
111 | }; | |
112 | ||
113 | /* | |
114 | * sgtl5000 internal ldo regulator, | |
115 | * enabled when VDDD not provided | |
116 | */ | |
117 | struct ldo_regulator { | |
118 | struct regulator_desc desc; | |
119 | struct regulator_dev *dev; | |
120 | int voltage; | |
121 | void *codec_data; | |
122 | bool enabled; | |
123 | }; | |
124 | ||
bd0593f5 JMH |
125 | enum sgtl5000_micbias_resistor { |
126 | SGTL5000_MICBIAS_OFF = 0, | |
127 | SGTL5000_MICBIAS_2K = 2, | |
128 | SGTL5000_MICBIAS_4K = 4, | |
129 | SGTL5000_MICBIAS_8K = 8, | |
130 | }; | |
131 | ||
9b34e6cc ZZ |
132 | /* sgtl5000 private structure in codec */ |
133 | struct sgtl5000_priv { | |
134 | int sysclk; /* sysclk rate */ | |
135 | int master; /* i2s master or not */ | |
136 | int fmt; /* i2s data format */ | |
137 | struct regulator_bulk_data supplies[SGTL5000_SUPPLY_NUM]; | |
138 | struct ldo_regulator *ldo; | |
e5d80e82 | 139 | struct regmap *regmap; |
9e13f345 | 140 | struct clk *mclk; |
252e91ff | 141 | int revision; |
bd0593f5 | 142 | u8 micbias_resistor; |
87357797 | 143 | u8 micbias_voltage; |
9b34e6cc ZZ |
144 | }; |
145 | ||
146 | /* | |
147 | * mic_bias power on/off share the same register bits with | |
148 | * output impedance of mic bias, when power on mic bias, we | |
149 | * need reclaim it to impedance value. | |
150 | * 0x0 = Powered off | |
151 | * 0x1 = 2Kohm | |
152 | * 0x2 = 4Kohm | |
153 | * 0x3 = 8Kohm | |
154 | */ | |
155 | static int mic_bias_event(struct snd_soc_dapm_widget *w, | |
156 | struct snd_kcontrol *kcontrol, int event) | |
157 | { | |
73bffd17 LPC |
158 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
159 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
bd0593f5 | 160 | |
9b34e6cc ZZ |
161 | switch (event) { |
162 | case SND_SOC_DAPM_POST_PMU: | |
bd0593f5 | 163 | /* change mic bias resistor */ |
73bffd17 | 164 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
bd0593f5 JMH |
165 | SGTL5000_BIAS_R_MASK, |
166 | sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT); | |
9b34e6cc ZZ |
167 | break; |
168 | ||
169 | case SND_SOC_DAPM_PRE_PMD: | |
73bffd17 | 170 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
dc56c5a8 | 171 | SGTL5000_BIAS_R_MASK, 0); |
9b34e6cc ZZ |
172 | break; |
173 | } | |
174 | return 0; | |
175 | } | |
176 | ||
177 | /* | |
f0cdcf3a ZZ |
178 | * As manual described, ADC/DAC only works when VAG powerup, |
179 | * So enabled VAG before ADC/DAC up. | |
180 | * In power down case, we need wait 400ms when vag fully ramped down. | |
9b34e6cc | 181 | */ |
f0cdcf3a | 182 | static int power_vag_event(struct snd_soc_dapm_widget *w, |
9b34e6cc ZZ |
183 | struct snd_kcontrol *kcontrol, int event) |
184 | { | |
73bffd17 | 185 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
f091f3f0 LW |
186 | const u32 mask = SGTL5000_DAC_POWERUP | SGTL5000_ADC_POWERUP; |
187 | ||
9b34e6cc | 188 | switch (event) { |
dd4d2d6d | 189 | case SND_SOC_DAPM_POST_PMU: |
73bffd17 | 190 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, |
9b34e6cc ZZ |
191 | SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); |
192 | break; | |
193 | ||
dd4d2d6d | 194 | case SND_SOC_DAPM_PRE_PMD: |
f091f3f0 LW |
195 | /* |
196 | * Don't clear VAG_POWERUP, when both DAC and ADC are | |
197 | * operational to prevent inadvertently starving the | |
198 | * other one of them. | |
199 | */ | |
73bffd17 | 200 | if ((snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER) & |
f091f3f0 | 201 | mask) != mask) { |
73bffd17 | 202 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, |
f091f3f0 LW |
203 | SGTL5000_VAG_POWERUP, 0); |
204 | msleep(400); | |
205 | } | |
9b34e6cc ZZ |
206 | break; |
207 | default: | |
208 | break; | |
209 | } | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
214 | /* input sources for ADC */ | |
215 | static const char *adc_mux_text[] = { | |
216 | "MIC_IN", "LINE_IN" | |
217 | }; | |
218 | ||
c8ed6504 TI |
219 | static SOC_ENUM_SINGLE_DECL(adc_enum, |
220 | SGTL5000_CHIP_ANA_CTRL, 2, | |
221 | adc_mux_text); | |
9b34e6cc ZZ |
222 | |
223 | static const struct snd_kcontrol_new adc_mux = | |
224 | SOC_DAPM_ENUM("Capture Mux", adc_enum); | |
225 | ||
226 | /* input sources for DAC */ | |
227 | static const char *dac_mux_text[] = { | |
228 | "DAC", "LINE_IN" | |
229 | }; | |
230 | ||
c8ed6504 TI |
231 | static SOC_ENUM_SINGLE_DECL(dac_enum, |
232 | SGTL5000_CHIP_ANA_CTRL, 6, | |
233 | dac_mux_text); | |
9b34e6cc ZZ |
234 | |
235 | static const struct snd_kcontrol_new dac_mux = | |
236 | SOC_DAPM_ENUM("Headphone Mux", dac_enum); | |
237 | ||
238 | static const struct snd_soc_dapm_widget sgtl5000_dapm_widgets[] = { | |
239 | SND_SOC_DAPM_INPUT("LINE_IN"), | |
240 | SND_SOC_DAPM_INPUT("MIC_IN"), | |
241 | ||
242 | SND_SOC_DAPM_OUTPUT("HP_OUT"), | |
243 | SND_SOC_DAPM_OUTPUT("LINE_OUT"), | |
244 | ||
8fc8ec92 MB |
245 | SND_SOC_DAPM_SUPPLY("Mic Bias", SGTL5000_CHIP_MIC_CTRL, 8, 0, |
246 | mic_bias_event, | |
247 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), | |
9b34e6cc | 248 | |
f0cdcf3a ZZ |
249 | SND_SOC_DAPM_PGA("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0), |
250 | SND_SOC_DAPM_PGA("LO", SGTL5000_CHIP_ANA_POWER, 0, 0, NULL, 0), | |
9b34e6cc ZZ |
251 | |
252 | SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, &adc_mux), | |
253 | SND_SOC_DAPM_MUX("Headphone Mux", SND_SOC_NOPM, 0, 0, &dac_mux), | |
254 | ||
255 | /* aif for i2s input */ | |
256 | SND_SOC_DAPM_AIF_IN("AIFIN", "Playback", | |
257 | 0, SGTL5000_CHIP_DIG_POWER, | |
258 | 0, 0), | |
259 | ||
260 | /* aif for i2s output */ | |
261 | SND_SOC_DAPM_AIF_OUT("AIFOUT", "Capture", | |
262 | 0, SGTL5000_CHIP_DIG_POWER, | |
263 | 1, 0), | |
264 | ||
f0cdcf3a | 265 | SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0), |
9b34e6cc | 266 | SND_SOC_DAPM_DAC("DAC", "Playback", SGTL5000_CHIP_ANA_POWER, 3, 0), |
dd4d2d6d MV |
267 | |
268 | SND_SOC_DAPM_PRE("VAG_POWER_PRE", power_vag_event), | |
269 | SND_SOC_DAPM_POST("VAG_POWER_POST", power_vag_event), | |
9b34e6cc ZZ |
270 | }; |
271 | ||
272 | /* routes for sgtl5000 */ | |
89989637 | 273 | static const struct snd_soc_dapm_route sgtl5000_dapm_routes[] = { |
9b34e6cc ZZ |
274 | {"Capture Mux", "LINE_IN", "LINE_IN"}, /* line_in --> adc_mux */ |
275 | {"Capture Mux", "MIC_IN", "MIC_IN"}, /* mic_in --> adc_mux */ | |
276 | ||
277 | {"ADC", NULL, "Capture Mux"}, /* adc_mux --> adc */ | |
278 | {"AIFOUT", NULL, "ADC"}, /* adc --> i2s_out */ | |
279 | ||
280 | {"DAC", NULL, "AIFIN"}, /* i2s-->dac,skip audio mux */ | |
281 | {"Headphone Mux", "DAC", "DAC"}, /* dac --> hp_mux */ | |
282 | {"LO", NULL, "DAC"}, /* dac --> line_out */ | |
283 | ||
284 | {"Headphone Mux", "LINE_IN", "LINE_IN"},/* line_in --> hp_mux */ | |
285 | {"HP", NULL, "Headphone Mux"}, /* hp_mux --> hp */ | |
286 | ||
287 | {"LINE_OUT", NULL, "LO"}, | |
288 | {"HP_OUT", NULL, "HP"}, | |
289 | }; | |
290 | ||
291 | /* custom function to fetch info of PCM playback volume */ | |
292 | static int dac_info_volsw(struct snd_kcontrol *kcontrol, | |
293 | struct snd_ctl_elem_info *uinfo) | |
294 | { | |
295 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
296 | uinfo->count = 2; | |
297 | uinfo->value.integer.min = 0; | |
298 | uinfo->value.integer.max = 0xfc - 0x3c; | |
299 | return 0; | |
300 | } | |
301 | ||
302 | /* | |
303 | * custom function to get of PCM playback volume | |
304 | * | |
305 | * dac volume register | |
306 | * 15-------------8-7--------------0 | |
307 | * | R channel vol | L channel vol | | |
308 | * ------------------------------- | |
309 | * | |
310 | * PCM volume with 0.5017 dB steps from 0 to -90 dB | |
311 | * | |
312 | * register values map to dB | |
313 | * 0x3B and less = Reserved | |
314 | * 0x3C = 0 dB | |
315 | * 0x3D = -0.5 dB | |
316 | * 0xF0 = -90 dB | |
317 | * 0xFC and greater = Muted | |
318 | * | |
319 | * register value map to userspace value | |
320 | * | |
321 | * register value 0x3c(0dB) 0xf0(-90dB)0xfc | |
322 | * ------------------------------ | |
323 | * userspace value 0xc0 0 | |
324 | */ | |
325 | static int dac_get_volsw(struct snd_kcontrol *kcontrol, | |
326 | struct snd_ctl_elem_value *ucontrol) | |
327 | { | |
ea53bf77 | 328 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
9b34e6cc ZZ |
329 | int reg; |
330 | int l; | |
331 | int r; | |
332 | ||
333 | reg = snd_soc_read(codec, SGTL5000_CHIP_DAC_VOL); | |
334 | ||
335 | /* get left channel volume */ | |
336 | l = (reg & SGTL5000_DAC_VOL_LEFT_MASK) >> SGTL5000_DAC_VOL_LEFT_SHIFT; | |
337 | ||
338 | /* get right channel volume */ | |
339 | r = (reg & SGTL5000_DAC_VOL_RIGHT_MASK) >> SGTL5000_DAC_VOL_RIGHT_SHIFT; | |
340 | ||
341 | /* make sure value fall in (0x3c,0xfc) */ | |
342 | l = clamp(l, 0x3c, 0xfc); | |
343 | r = clamp(r, 0x3c, 0xfc); | |
344 | ||
345 | /* invert it and map to userspace value */ | |
346 | l = 0xfc - l; | |
347 | r = 0xfc - r; | |
348 | ||
349 | ucontrol->value.integer.value[0] = l; | |
350 | ucontrol->value.integer.value[1] = r; | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | /* | |
356 | * custom function to put of PCM playback volume | |
357 | * | |
358 | * dac volume register | |
359 | * 15-------------8-7--------------0 | |
360 | * | R channel vol | L channel vol | | |
361 | * ------------------------------- | |
362 | * | |
363 | * PCM volume with 0.5017 dB steps from 0 to -90 dB | |
364 | * | |
365 | * register values map to dB | |
366 | * 0x3B and less = Reserved | |
367 | * 0x3C = 0 dB | |
368 | * 0x3D = -0.5 dB | |
369 | * 0xF0 = -90 dB | |
370 | * 0xFC and greater = Muted | |
371 | * | |
372 | * userspace value map to register value | |
373 | * | |
374 | * userspace value 0xc0 0 | |
375 | * ------------------------------ | |
376 | * register value 0x3c(0dB) 0xf0(-90dB)0xfc | |
377 | */ | |
378 | static int dac_put_volsw(struct snd_kcontrol *kcontrol, | |
379 | struct snd_ctl_elem_value *ucontrol) | |
380 | { | |
ea53bf77 | 381 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
9b34e6cc ZZ |
382 | int reg; |
383 | int l; | |
384 | int r; | |
385 | ||
386 | l = ucontrol->value.integer.value[0]; | |
387 | r = ucontrol->value.integer.value[1]; | |
388 | ||
389 | /* make sure userspace volume fall in (0, 0xfc-0x3c) */ | |
390 | l = clamp(l, 0, 0xfc - 0x3c); | |
391 | r = clamp(r, 0, 0xfc - 0x3c); | |
392 | ||
393 | /* invert it, get the value can be set to register */ | |
394 | l = 0xfc - l; | |
395 | r = 0xfc - r; | |
396 | ||
397 | /* shift to get the register value */ | |
398 | reg = l << SGTL5000_DAC_VOL_LEFT_SHIFT | | |
399 | r << SGTL5000_DAC_VOL_RIGHT_SHIFT; | |
400 | ||
401 | snd_soc_write(codec, SGTL5000_CHIP_DAC_VOL, reg); | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate, -600, 600, 0); | |
407 | ||
408 | /* tlv for mic gain, 0db 20db 30db 40db */ | |
53eb1ca3 | 409 | static const DECLARE_TLV_DB_RANGE(mic_gain_tlv, |
9b34e6cc | 410 | 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), |
53eb1ca3 LPC |
411 | 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0) |
412 | ); | |
9b34e6cc ZZ |
413 | |
414 | /* tlv for hp volume, -51.5db to 12.0db, step .5db */ | |
415 | static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0); | |
416 | ||
417 | static const struct snd_kcontrol_new sgtl5000_snd_controls[] = { | |
418 | /* SOC_DOUBLE_S8_TLV with invert */ | |
419 | { | |
420 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
421 | .name = "PCM Playback Volume", | |
422 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
423 | SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
424 | .info = dac_info_volsw, | |
425 | .get = dac_get_volsw, | |
426 | .put = dac_put_volsw, | |
427 | }, | |
428 | ||
429 | SOC_DOUBLE("Capture Volume", SGTL5000_CHIP_ANA_ADC_CTRL, 0, 4, 0xf, 0), | |
430 | SOC_SINGLE_TLV("Capture Attenuate Switch (-6dB)", | |
431 | SGTL5000_CHIP_ANA_ADC_CTRL, | |
65f2b226 | 432 | 8, 1, 0, capture_6db_attenuate), |
9b34e6cc ZZ |
433 | SOC_SINGLE("Capture ZC Switch", SGTL5000_CHIP_ANA_CTRL, 1, 1, 0), |
434 | ||
435 | SOC_DOUBLE_TLV("Headphone Playback Volume", | |
436 | SGTL5000_CHIP_ANA_HP_CTRL, | |
437 | 0, 8, | |
438 | 0x7f, 1, | |
439 | headphone_volume), | |
440 | SOC_SINGLE("Headphone Playback ZC Switch", SGTL5000_CHIP_ANA_CTRL, | |
441 | 5, 1, 0), | |
442 | ||
443 | SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL, | |
b50684da | 444 | 0, 3, 0, mic_gain_tlv), |
9b34e6cc ZZ |
445 | }; |
446 | ||
447 | /* mute the codec used by alsa core */ | |
448 | static int sgtl5000_digital_mute(struct snd_soc_dai *codec_dai, int mute) | |
449 | { | |
450 | struct snd_soc_codec *codec = codec_dai->codec; | |
451 | u16 adcdac_ctrl = SGTL5000_DAC_MUTE_LEFT | SGTL5000_DAC_MUTE_RIGHT; | |
452 | ||
453 | snd_soc_update_bits(codec, SGTL5000_CHIP_ADCDAC_CTRL, | |
454 | adcdac_ctrl, mute ? adcdac_ctrl : 0); | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
459 | /* set codec format */ | |
460 | static int sgtl5000_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
461 | { | |
462 | struct snd_soc_codec *codec = codec_dai->codec; | |
463 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
464 | u16 i2sctl = 0; | |
465 | ||
466 | sgtl5000->master = 0; | |
467 | /* | |
468 | * i2s clock and frame master setting. | |
469 | * ONLY support: | |
470 | * - clock and frame slave, | |
471 | * - clock and frame master | |
472 | */ | |
473 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
474 | case SND_SOC_DAIFMT_CBS_CFS: | |
475 | break; | |
476 | case SND_SOC_DAIFMT_CBM_CFM: | |
477 | i2sctl |= SGTL5000_I2S_MASTER; | |
478 | sgtl5000->master = 1; | |
479 | break; | |
480 | default: | |
481 | return -EINVAL; | |
482 | } | |
483 | ||
484 | /* setting i2s data format */ | |
485 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
486 | case SND_SOC_DAIFMT_DSP_A: | |
9ee802ec | 487 | i2sctl |= SGTL5000_I2S_MODE_PCM << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
488 | break; |
489 | case SND_SOC_DAIFMT_DSP_B: | |
9ee802ec | 490 | i2sctl |= SGTL5000_I2S_MODE_PCM << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
491 | i2sctl |= SGTL5000_I2S_LRALIGN; |
492 | break; | |
493 | case SND_SOC_DAIFMT_I2S: | |
9ee802ec | 494 | i2sctl |= SGTL5000_I2S_MODE_I2S_LJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
495 | break; |
496 | case SND_SOC_DAIFMT_RIGHT_J: | |
9ee802ec | 497 | i2sctl |= SGTL5000_I2S_MODE_RJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
498 | i2sctl |= SGTL5000_I2S_LRPOL; |
499 | break; | |
500 | case SND_SOC_DAIFMT_LEFT_J: | |
9ee802ec | 501 | i2sctl |= SGTL5000_I2S_MODE_I2S_LJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
502 | i2sctl |= SGTL5000_I2S_LRALIGN; |
503 | break; | |
504 | default: | |
505 | return -EINVAL; | |
506 | } | |
507 | ||
508 | sgtl5000->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; | |
509 | ||
510 | /* Clock inversion */ | |
511 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
512 | case SND_SOC_DAIFMT_NB_NF: | |
513 | break; | |
514 | case SND_SOC_DAIFMT_IB_NF: | |
515 | i2sctl |= SGTL5000_I2S_SCLK_INV; | |
516 | break; | |
517 | default: | |
518 | return -EINVAL; | |
519 | } | |
520 | ||
521 | snd_soc_write(codec, SGTL5000_CHIP_I2S_CTRL, i2sctl); | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
526 | /* set codec sysclk */ | |
527 | static int sgtl5000_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
528 | int clk_id, unsigned int freq, int dir) | |
529 | { | |
530 | struct snd_soc_codec *codec = codec_dai->codec; | |
531 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
532 | ||
533 | switch (clk_id) { | |
534 | case SGTL5000_SYSCLK: | |
535 | sgtl5000->sysclk = freq; | |
536 | break; | |
537 | default: | |
538 | return -EINVAL; | |
539 | } | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
544 | /* | |
545 | * set clock according to i2s frame clock, | |
7f6d75d7 FE |
546 | * sgtl5000 provides 2 clock sources: |
547 | * 1. sys_mclk: sample freq can only be configured to | |
9b34e6cc | 548 | * 1/256, 1/384, 1/512 of sys_mclk. |
7f6d75d7 | 549 | * 2. pll: can derive any audio clocks. |
9b34e6cc ZZ |
550 | * |
551 | * clock setting rules: | |
7f6d75d7 FE |
552 | * 1. in slave mode, only sys_mclk can be used |
553 | * 2. as constraint by sys_mclk, sample freq should be set to 32 kHz, 44.1 kHz | |
554 | * and above. | |
555 | * 3. usage of sys_mclk is preferred over pll to save power. | |
9b34e6cc ZZ |
556 | */ |
557 | static int sgtl5000_set_clock(struct snd_soc_codec *codec, int frame_rate) | |
558 | { | |
559 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
560 | int clk_ctl = 0; | |
561 | int sys_fs; /* sample freq */ | |
562 | ||
563 | /* | |
564 | * sample freq should be divided by frame clock, | |
7f6d75d7 FE |
565 | * if frame clock is lower than 44.1 kHz, sample freq should be set to |
566 | * 32 kHz or 44.1 kHz. | |
9b34e6cc ZZ |
567 | */ |
568 | switch (frame_rate) { | |
569 | case 8000: | |
570 | case 16000: | |
571 | sys_fs = 32000; | |
572 | break; | |
573 | case 11025: | |
574 | case 22050: | |
575 | sys_fs = 44100; | |
576 | break; | |
577 | default: | |
578 | sys_fs = frame_rate; | |
579 | break; | |
580 | } | |
581 | ||
582 | /* set divided factor of frame clock */ | |
583 | switch (sys_fs / frame_rate) { | |
584 | case 4: | |
585 | clk_ctl |= SGTL5000_RATE_MODE_DIV_4 << SGTL5000_RATE_MODE_SHIFT; | |
586 | break; | |
587 | case 2: | |
588 | clk_ctl |= SGTL5000_RATE_MODE_DIV_2 << SGTL5000_RATE_MODE_SHIFT; | |
589 | break; | |
590 | case 1: | |
591 | clk_ctl |= SGTL5000_RATE_MODE_DIV_1 << SGTL5000_RATE_MODE_SHIFT; | |
592 | break; | |
593 | default: | |
594 | return -EINVAL; | |
595 | } | |
596 | ||
597 | /* set the sys_fs according to frame rate */ | |
598 | switch (sys_fs) { | |
599 | case 32000: | |
600 | clk_ctl |= SGTL5000_SYS_FS_32k << SGTL5000_SYS_FS_SHIFT; | |
601 | break; | |
602 | case 44100: | |
603 | clk_ctl |= SGTL5000_SYS_FS_44_1k << SGTL5000_SYS_FS_SHIFT; | |
604 | break; | |
605 | case 48000: | |
606 | clk_ctl |= SGTL5000_SYS_FS_48k << SGTL5000_SYS_FS_SHIFT; | |
607 | break; | |
608 | case 96000: | |
609 | clk_ctl |= SGTL5000_SYS_FS_96k << SGTL5000_SYS_FS_SHIFT; | |
610 | break; | |
611 | default: | |
612 | dev_err(codec->dev, "frame rate %d not supported\n", | |
613 | frame_rate); | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
617 | /* | |
618 | * calculate the divider of mclk/sample_freq, | |
7f6d75d7 FE |
619 | * factor of freq = 96 kHz can only be 256, since mclk is in the range |
620 | * of 8 MHz - 27 MHz | |
9b34e6cc | 621 | */ |
2a4cfd10 | 622 | switch (sgtl5000->sysclk / frame_rate) { |
9b34e6cc ZZ |
623 | case 256: |
624 | clk_ctl |= SGTL5000_MCLK_FREQ_256FS << | |
625 | SGTL5000_MCLK_FREQ_SHIFT; | |
626 | break; | |
627 | case 384: | |
628 | clk_ctl |= SGTL5000_MCLK_FREQ_384FS << | |
629 | SGTL5000_MCLK_FREQ_SHIFT; | |
630 | break; | |
631 | case 512: | |
632 | clk_ctl |= SGTL5000_MCLK_FREQ_512FS << | |
633 | SGTL5000_MCLK_FREQ_SHIFT; | |
634 | break; | |
635 | default: | |
7f6d75d7 | 636 | /* if mclk does not satisfy the divider, use pll */ |
9b34e6cc ZZ |
637 | if (sgtl5000->master) { |
638 | clk_ctl |= SGTL5000_MCLK_FREQ_PLL << | |
639 | SGTL5000_MCLK_FREQ_SHIFT; | |
640 | } else { | |
641 | dev_err(codec->dev, | |
642 | "PLL not supported in slave mode\n"); | |
fa558d01 FE |
643 | dev_err(codec->dev, "%d ratio is not supported. " |
644 | "SYS_MCLK needs to be 256, 384 or 512 * fs\n", | |
2a4cfd10 | 645 | sgtl5000->sysclk / frame_rate); |
9b34e6cc ZZ |
646 | return -EINVAL; |
647 | } | |
648 | } | |
649 | ||
650 | /* if using pll, please check manual 6.4.2 for detail */ | |
651 | if ((clk_ctl & SGTL5000_MCLK_FREQ_MASK) == SGTL5000_MCLK_FREQ_PLL) { | |
652 | u64 out, t; | |
653 | int div2; | |
654 | int pll_ctl; | |
655 | unsigned int in, int_div, frac_div; | |
656 | ||
657 | if (sgtl5000->sysclk > 17000000) { | |
658 | div2 = 1; | |
659 | in = sgtl5000->sysclk / 2; | |
660 | } else { | |
661 | div2 = 0; | |
662 | in = sgtl5000->sysclk; | |
663 | } | |
664 | if (sys_fs == 44100) | |
665 | out = 180633600; | |
666 | else | |
667 | out = 196608000; | |
668 | t = do_div(out, in); | |
669 | int_div = out; | |
670 | t *= 2048; | |
671 | do_div(t, in); | |
672 | frac_div = t; | |
673 | pll_ctl = int_div << SGTL5000_PLL_INT_DIV_SHIFT | | |
674 | frac_div << SGTL5000_PLL_FRAC_DIV_SHIFT; | |
675 | ||
676 | snd_soc_write(codec, SGTL5000_CHIP_PLL_CTRL, pll_ctl); | |
677 | if (div2) | |
678 | snd_soc_update_bits(codec, | |
679 | SGTL5000_CHIP_CLK_TOP_CTRL, | |
680 | SGTL5000_INPUT_FREQ_DIV2, | |
681 | SGTL5000_INPUT_FREQ_DIV2); | |
682 | else | |
683 | snd_soc_update_bits(codec, | |
684 | SGTL5000_CHIP_CLK_TOP_CTRL, | |
685 | SGTL5000_INPUT_FREQ_DIV2, | |
686 | 0); | |
687 | ||
688 | /* power up pll */ | |
689 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
690 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP, | |
691 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP); | |
e06e4c2d OS |
692 | |
693 | /* if using pll, clk_ctrl must be set after pll power up */ | |
694 | snd_soc_write(codec, SGTL5000_CHIP_CLK_CTRL, clk_ctl); | |
9b34e6cc | 695 | } else { |
e06e4c2d OS |
696 | /* otherwise, clk_ctrl must be set before pll power down */ |
697 | snd_soc_write(codec, SGTL5000_CHIP_CLK_CTRL, clk_ctl); | |
698 | ||
9b34e6cc ZZ |
699 | /* power down pll */ |
700 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
701 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP, | |
702 | 0); | |
703 | } | |
704 | ||
9b34e6cc ZZ |
705 | return 0; |
706 | } | |
707 | ||
708 | /* | |
709 | * Set PCM DAI bit size and sample rate. | |
710 | * input: params_rate, params_fmt | |
711 | */ | |
712 | static int sgtl5000_pcm_hw_params(struct snd_pcm_substream *substream, | |
713 | struct snd_pcm_hw_params *params, | |
714 | struct snd_soc_dai *dai) | |
715 | { | |
e6968a17 | 716 | struct snd_soc_codec *codec = dai->codec; |
9b34e6cc ZZ |
717 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); |
718 | int channels = params_channels(params); | |
719 | int i2s_ctl = 0; | |
720 | int stereo; | |
721 | int ret; | |
722 | ||
723 | /* sysclk should already set */ | |
724 | if (!sgtl5000->sysclk) { | |
725 | dev_err(codec->dev, "%s: set sysclk first!\n", __func__); | |
726 | return -EFAULT; | |
727 | } | |
728 | ||
729 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
730 | stereo = SGTL5000_DAC_STEREO; | |
731 | else | |
732 | stereo = SGTL5000_ADC_STEREO; | |
733 | ||
734 | /* set mono to save power */ | |
735 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, stereo, | |
736 | channels == 1 ? 0 : stereo); | |
737 | ||
738 | /* set codec clock base on lrclk */ | |
739 | ret = sgtl5000_set_clock(codec, params_rate(params)); | |
740 | if (ret) | |
741 | return ret; | |
742 | ||
743 | /* set i2s data format */ | |
dacc2aef MB |
744 | switch (params_width(params)) { |
745 | case 16: | |
9b34e6cc ZZ |
746 | if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J) |
747 | return -EINVAL; | |
748 | i2s_ctl |= SGTL5000_I2S_DLEN_16 << SGTL5000_I2S_DLEN_SHIFT; | |
749 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_32FS << | |
750 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
751 | break; | |
dacc2aef | 752 | case 20: |
9b34e6cc ZZ |
753 | i2s_ctl |= SGTL5000_I2S_DLEN_20 << SGTL5000_I2S_DLEN_SHIFT; |
754 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
755 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
756 | break; | |
dacc2aef | 757 | case 24: |
9b34e6cc ZZ |
758 | i2s_ctl |= SGTL5000_I2S_DLEN_24 << SGTL5000_I2S_DLEN_SHIFT; |
759 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
760 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
761 | break; | |
dacc2aef | 762 | case 32: |
9b34e6cc ZZ |
763 | if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J) |
764 | return -EINVAL; | |
765 | i2s_ctl |= SGTL5000_I2S_DLEN_32 << SGTL5000_I2S_DLEN_SHIFT; | |
766 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
767 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
768 | break; | |
769 | default: | |
770 | return -EINVAL; | |
771 | } | |
772 | ||
33cb92cf AL |
773 | snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL, |
774 | SGTL5000_I2S_DLEN_MASK | SGTL5000_I2S_SCLKFREQ_MASK, | |
775 | i2s_ctl); | |
9b34e6cc ZZ |
776 | |
777 | return 0; | |
778 | } | |
779 | ||
333802e9 | 780 | #ifdef CONFIG_REGULATOR |
9b34e6cc ZZ |
781 | static int ldo_regulator_is_enabled(struct regulator_dev *dev) |
782 | { | |
783 | struct ldo_regulator *ldo = rdev_get_drvdata(dev); | |
784 | ||
785 | return ldo->enabled; | |
786 | } | |
787 | ||
788 | static int ldo_regulator_enable(struct regulator_dev *dev) | |
789 | { | |
790 | struct ldo_regulator *ldo = rdev_get_drvdata(dev); | |
791 | struct snd_soc_codec *codec = (struct snd_soc_codec *)ldo->codec_data; | |
792 | int reg; | |
793 | ||
794 | if (ldo_regulator_is_enabled(dev)) | |
795 | return 0; | |
796 | ||
797 | /* set regulator value firstly */ | |
798 | reg = (1600 - ldo->voltage / 1000) / 50; | |
799 | reg = clamp(reg, 0x0, 0xf); | |
800 | ||
801 | /* amend the voltage value, unit: uV */ | |
802 | ldo->voltage = (1600 - reg * 50) * 1000; | |
803 | ||
804 | /* set voltage to register */ | |
805 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL, | |
064a4bce | 806 | SGTL5000_LINREG_VDDD_MASK, reg); |
9b34e6cc ZZ |
807 | |
808 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
809 | SGTL5000_LINEREG_D_POWERUP, | |
810 | SGTL5000_LINEREG_D_POWERUP); | |
811 | ||
7f6d75d7 | 812 | /* when internal ldo is enabled, simple digital power can be disabled */ |
9b34e6cc ZZ |
813 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, |
814 | SGTL5000_LINREG_SIMPLE_POWERUP, | |
815 | 0); | |
816 | ||
817 | ldo->enabled = 1; | |
818 | return 0; | |
819 | } | |
820 | ||
821 | static int ldo_regulator_disable(struct regulator_dev *dev) | |
822 | { | |
823 | struct ldo_regulator *ldo = rdev_get_drvdata(dev); | |
824 | struct snd_soc_codec *codec = (struct snd_soc_codec *)ldo->codec_data; | |
825 | ||
826 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
827 | SGTL5000_LINEREG_D_POWERUP, | |
828 | 0); | |
829 | ||
830 | /* clear voltage info */ | |
831 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL, | |
064a4bce | 832 | SGTL5000_LINREG_VDDD_MASK, 0); |
9b34e6cc ZZ |
833 | |
834 | ldo->enabled = 0; | |
835 | ||
836 | return 0; | |
837 | } | |
838 | ||
839 | static int ldo_regulator_get_voltage(struct regulator_dev *dev) | |
840 | { | |
841 | struct ldo_regulator *ldo = rdev_get_drvdata(dev); | |
842 | ||
843 | return ldo->voltage; | |
844 | } | |
845 | ||
846 | static struct regulator_ops ldo_regulator_ops = { | |
847 | .is_enabled = ldo_regulator_is_enabled, | |
848 | .enable = ldo_regulator_enable, | |
849 | .disable = ldo_regulator_disable, | |
850 | .get_voltage = ldo_regulator_get_voltage, | |
851 | }; | |
852 | ||
853 | static int ldo_regulator_register(struct snd_soc_codec *codec, | |
854 | struct regulator_init_data *init_data, | |
855 | int voltage) | |
856 | { | |
857 | struct ldo_regulator *ldo; | |
5b13de7a | 858 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); |
c172708d | 859 | struct regulator_config config = { }; |
9b34e6cc ZZ |
860 | |
861 | ldo = kzalloc(sizeof(struct ldo_regulator), GFP_KERNEL); | |
862 | ||
be813334 | 863 | if (!ldo) |
9b34e6cc | 864 | return -ENOMEM; |
9b34e6cc ZZ |
865 | |
866 | ldo->desc.name = kstrdup(dev_name(codec->dev), GFP_KERNEL); | |
867 | if (!ldo->desc.name) { | |
868 | kfree(ldo); | |
869 | dev_err(codec->dev, "failed to allocate decs name memory\n"); | |
870 | return -ENOMEM; | |
871 | } | |
872 | ||
873 | ldo->desc.type = REGULATOR_VOLTAGE; | |
874 | ldo->desc.owner = THIS_MODULE; | |
875 | ldo->desc.ops = &ldo_regulator_ops; | |
876 | ldo->desc.n_voltages = 1; | |
877 | ||
878 | ldo->codec_data = codec; | |
879 | ldo->voltage = voltage; | |
880 | ||
c172708d MB |
881 | config.dev = codec->dev; |
882 | config.driver_data = ldo; | |
883 | config.init_data = init_data; | |
884 | ||
885 | ldo->dev = regulator_register(&ldo->desc, &config); | |
9b34e6cc | 886 | if (IS_ERR(ldo->dev)) { |
62f75aaf DC |
887 | int ret = PTR_ERR(ldo->dev); |
888 | ||
9b34e6cc ZZ |
889 | dev_err(codec->dev, "failed to register regulator\n"); |
890 | kfree(ldo->desc.name); | |
891 | kfree(ldo); | |
892 | ||
62f75aaf | 893 | return ret; |
9b34e6cc | 894 | } |
5b13de7a | 895 | sgtl5000->ldo = ldo; |
9b34e6cc ZZ |
896 | |
897 | return 0; | |
898 | } | |
899 | ||
900 | static int ldo_regulator_remove(struct snd_soc_codec *codec) | |
901 | { | |
902 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
903 | struct ldo_regulator *ldo = sgtl5000->ldo; | |
904 | ||
905 | if (!ldo) | |
906 | return 0; | |
907 | ||
908 | regulator_unregister(ldo->dev); | |
909 | kfree(ldo->desc.name); | |
910 | kfree(ldo); | |
911 | ||
912 | return 0; | |
913 | } | |
333802e9 MB |
914 | #else |
915 | static int ldo_regulator_register(struct snd_soc_codec *codec, | |
916 | struct regulator_init_data *init_data, | |
917 | int voltage) | |
918 | { | |
09bddc8e | 919 | dev_err(codec->dev, "this setup needs regulator support in the kernel\n"); |
333802e9 MB |
920 | return -EINVAL; |
921 | } | |
922 | ||
923 | static int ldo_regulator_remove(struct snd_soc_codec *codec) | |
924 | { | |
925 | return 0; | |
926 | } | |
927 | #endif | |
9b34e6cc ZZ |
928 | |
929 | /* | |
930 | * set dac bias | |
931 | * common state changes: | |
932 | * startup: | |
933 | * off --> standby --> prepare --> on | |
934 | * standby --> prepare --> on | |
935 | * | |
936 | * stop: | |
937 | * on --> prepare --> standby | |
938 | */ | |
939 | static int sgtl5000_set_bias_level(struct snd_soc_codec *codec, | |
940 | enum snd_soc_bias_level level) | |
941 | { | |
942 | int ret; | |
943 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
944 | ||
945 | switch (level) { | |
946 | case SND_SOC_BIAS_ON: | |
947 | case SND_SOC_BIAS_PREPARE: | |
948 | break; | |
949 | case SND_SOC_BIAS_STANDBY: | |
8533eb24 | 950 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { |
9b34e6cc ZZ |
951 | ret = regulator_bulk_enable( |
952 | ARRAY_SIZE(sgtl5000->supplies), | |
953 | sgtl5000->supplies); | |
954 | if (ret) | |
955 | return ret; | |
956 | udelay(10); | |
2bdc1bb2 MB |
957 | |
958 | regcache_cache_only(sgtl5000->regmap, false); | |
959 | ||
960 | ret = regcache_sync(sgtl5000->regmap); | |
961 | if (ret != 0) { | |
962 | dev_err(codec->dev, | |
963 | "Failed to restore cache: %d\n", ret); | |
964 | ||
965 | regcache_cache_only(sgtl5000->regmap, true); | |
966 | regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies), | |
967 | sgtl5000->supplies); | |
968 | ||
969 | return ret; | |
970 | } | |
9b34e6cc ZZ |
971 | } |
972 | ||
973 | break; | |
974 | case SND_SOC_BIAS_OFF: | |
2bdc1bb2 | 975 | regcache_cache_only(sgtl5000->regmap, true); |
9b34e6cc ZZ |
976 | regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies), |
977 | sgtl5000->supplies); | |
978 | break; | |
979 | } | |
980 | ||
9b34e6cc ZZ |
981 | return 0; |
982 | } | |
983 | ||
984 | #define SGTL5000_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ | |
985 | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
986 | SNDRV_PCM_FMTBIT_S24_LE |\ | |
987 | SNDRV_PCM_FMTBIT_S32_LE) | |
988 | ||
85e7652d | 989 | static const struct snd_soc_dai_ops sgtl5000_ops = { |
9b34e6cc ZZ |
990 | .hw_params = sgtl5000_pcm_hw_params, |
991 | .digital_mute = sgtl5000_digital_mute, | |
992 | .set_fmt = sgtl5000_set_dai_fmt, | |
993 | .set_sysclk = sgtl5000_set_dai_sysclk, | |
994 | }; | |
995 | ||
996 | static struct snd_soc_dai_driver sgtl5000_dai = { | |
997 | .name = "sgtl5000", | |
998 | .playback = { | |
999 | .stream_name = "Playback", | |
1000 | .channels_min = 1, | |
1001 | .channels_max = 2, | |
1002 | /* | |
1003 | * only support 8~48K + 96K, | |
1004 | * TODO modify hw_param to support more | |
1005 | */ | |
1006 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_96000, | |
1007 | .formats = SGTL5000_FORMATS, | |
1008 | }, | |
1009 | .capture = { | |
1010 | .stream_name = "Capture", | |
1011 | .channels_min = 1, | |
1012 | .channels_max = 2, | |
1013 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_96000, | |
1014 | .formats = SGTL5000_FORMATS, | |
1015 | }, | |
1016 | .ops = &sgtl5000_ops, | |
1017 | .symmetric_rates = 1, | |
1018 | }; | |
1019 | ||
e5d80e82 | 1020 | static bool sgtl5000_volatile(struct device *dev, unsigned int reg) |
9b34e6cc ZZ |
1021 | { |
1022 | switch (reg) { | |
1023 | case SGTL5000_CHIP_ID: | |
1024 | case SGTL5000_CHIP_ADCDAC_CTRL: | |
1025 | case SGTL5000_CHIP_ANA_STATUS: | |
e5d80e82 | 1026 | return true; |
9b34e6cc ZZ |
1027 | } |
1028 | ||
e5d80e82 FE |
1029 | return false; |
1030 | } | |
1031 | ||
1032 | static bool sgtl5000_readable(struct device *dev, unsigned int reg) | |
1033 | { | |
1034 | switch (reg) { | |
1035 | case SGTL5000_CHIP_ID: | |
1036 | case SGTL5000_CHIP_DIG_POWER: | |
1037 | case SGTL5000_CHIP_CLK_CTRL: | |
1038 | case SGTL5000_CHIP_I2S_CTRL: | |
1039 | case SGTL5000_CHIP_SSS_CTRL: | |
1040 | case SGTL5000_CHIP_ADCDAC_CTRL: | |
1041 | case SGTL5000_CHIP_DAC_VOL: | |
1042 | case SGTL5000_CHIP_PAD_STRENGTH: | |
1043 | case SGTL5000_CHIP_ANA_ADC_CTRL: | |
1044 | case SGTL5000_CHIP_ANA_HP_CTRL: | |
1045 | case SGTL5000_CHIP_ANA_CTRL: | |
1046 | case SGTL5000_CHIP_LINREG_CTRL: | |
1047 | case SGTL5000_CHIP_REF_CTRL: | |
1048 | case SGTL5000_CHIP_MIC_CTRL: | |
1049 | case SGTL5000_CHIP_LINE_OUT_CTRL: | |
1050 | case SGTL5000_CHIP_LINE_OUT_VOL: | |
1051 | case SGTL5000_CHIP_ANA_POWER: | |
1052 | case SGTL5000_CHIP_PLL_CTRL: | |
1053 | case SGTL5000_CHIP_CLK_TOP_CTRL: | |
1054 | case SGTL5000_CHIP_ANA_STATUS: | |
1055 | case SGTL5000_CHIP_SHORT_CTRL: | |
1056 | case SGTL5000_CHIP_ANA_TEST2: | |
1057 | case SGTL5000_DAP_CTRL: | |
1058 | case SGTL5000_DAP_PEQ: | |
1059 | case SGTL5000_DAP_BASS_ENHANCE: | |
1060 | case SGTL5000_DAP_BASS_ENHANCE_CTRL: | |
1061 | case SGTL5000_DAP_AUDIO_EQ: | |
1062 | case SGTL5000_DAP_SURROUND: | |
1063 | case SGTL5000_DAP_FLT_COEF_ACCESS: | |
1064 | case SGTL5000_DAP_COEF_WR_B0_MSB: | |
1065 | case SGTL5000_DAP_COEF_WR_B0_LSB: | |
1066 | case SGTL5000_DAP_EQ_BASS_BAND0: | |
1067 | case SGTL5000_DAP_EQ_BASS_BAND1: | |
1068 | case SGTL5000_DAP_EQ_BASS_BAND2: | |
1069 | case SGTL5000_DAP_EQ_BASS_BAND3: | |
1070 | case SGTL5000_DAP_EQ_BASS_BAND4: | |
1071 | case SGTL5000_DAP_MAIN_CHAN: | |
1072 | case SGTL5000_DAP_MIX_CHAN: | |
1073 | case SGTL5000_DAP_AVC_CTRL: | |
1074 | case SGTL5000_DAP_AVC_THRESHOLD: | |
1075 | case SGTL5000_DAP_AVC_ATTACK: | |
1076 | case SGTL5000_DAP_AVC_DECAY: | |
1077 | case SGTL5000_DAP_COEF_WR_B1_MSB: | |
1078 | case SGTL5000_DAP_COEF_WR_B1_LSB: | |
1079 | case SGTL5000_DAP_COEF_WR_B2_MSB: | |
1080 | case SGTL5000_DAP_COEF_WR_B2_LSB: | |
1081 | case SGTL5000_DAP_COEF_WR_A1_MSB: | |
1082 | case SGTL5000_DAP_COEF_WR_A1_LSB: | |
1083 | case SGTL5000_DAP_COEF_WR_A2_MSB: | |
1084 | case SGTL5000_DAP_COEF_WR_A2_LSB: | |
1085 | return true; | |
1086 | ||
1087 | default: | |
1088 | return false; | |
1089 | } | |
9b34e6cc ZZ |
1090 | } |
1091 | ||
1f39d939 AS |
1092 | /* |
1093 | * This precalculated table contains all (vag_val * 100 / lo_calcntrl) results | |
1094 | * to select an appropriate lo_vol_* in SGTL5000_CHIP_LINE_OUT_VOL | |
1095 | * The calculatation was done for all possible register values which | |
1096 | * is the array index and the following formula: 10^((idx−15)/40) * 100 | |
1097 | */ | |
1098 | static const u8 vol_quot_table[] = { | |
1099 | 42, 45, 47, 50, 53, 56, 60, 63, | |
1100 | 67, 71, 75, 79, 84, 89, 94, 100, | |
1101 | 106, 112, 119, 126, 133, 141, 150, 158, | |
1102 | 168, 178, 188, 200, 211, 224, 237, 251 | |
1103 | }; | |
1104 | ||
9b34e6cc ZZ |
1105 | /* |
1106 | * sgtl5000 has 3 internal power supplies: | |
1107 | * 1. VAG, normally set to vdda/2 | |
7f6d75d7 | 1108 | * 2. charge pump, set to different value |
9b34e6cc ZZ |
1109 | * according to voltage of vdda and vddio |
1110 | * 3. line out VAG, normally set to vddio/2 | |
1111 | * | |
1112 | * and should be set according to: | |
1113 | * 1. vddd provided by external or not | |
1114 | * 2. vdda and vddio voltage value. > 3.1v or not | |
1115 | * 3. chip revision >=0x11 or not. If >=0x11, not use external vddd. | |
1116 | */ | |
1117 | static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) | |
1118 | { | |
1119 | int vddd; | |
1120 | int vdda; | |
1121 | int vddio; | |
1122 | u16 ana_pwr; | |
1123 | u16 lreg_ctrl; | |
1124 | int vag; | |
d2b7c2aa | 1125 | int lo_vag; |
1f39d939 AS |
1126 | int vol_quot; |
1127 | int lo_vol; | |
1128 | size_t i; | |
9b34e6cc ZZ |
1129 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); |
1130 | ||
1131 | vdda = regulator_get_voltage(sgtl5000->supplies[VDDA].consumer); | |
1132 | vddio = regulator_get_voltage(sgtl5000->supplies[VDDIO].consumer); | |
1133 | vddd = regulator_get_voltage(sgtl5000->supplies[VDDD].consumer); | |
1134 | ||
1135 | vdda = vdda / 1000; | |
1136 | vddio = vddio / 1000; | |
1137 | vddd = vddd / 1000; | |
1138 | ||
1139 | if (vdda <= 0 || vddio <= 0 || vddd < 0) { | |
1140 | dev_err(codec->dev, "regulator voltage not set correctly\n"); | |
1141 | ||
1142 | return -EINVAL; | |
1143 | } | |
1144 | ||
1145 | /* according to datasheet, maximum voltage of supplies */ | |
1146 | if (vdda > 3600 || vddio > 3600 || vddd > 1980) { | |
1147 | dev_err(codec->dev, | |
cf1ee98d | 1148 | "exceed max voltage vdda %dmV vddio %dmV vddd %dmV\n", |
9b34e6cc ZZ |
1149 | vdda, vddio, vddd); |
1150 | ||
1151 | return -EINVAL; | |
1152 | } | |
1153 | ||
1154 | /* reset value */ | |
1155 | ana_pwr = snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER); | |
1156 | ana_pwr |= SGTL5000_DAC_STEREO | | |
1157 | SGTL5000_ADC_STEREO | | |
1158 | SGTL5000_REFTOP_POWERUP; | |
1159 | lreg_ctrl = snd_soc_read(codec, SGTL5000_CHIP_LINREG_CTRL); | |
1160 | ||
1161 | if (vddio < 3100 && vdda < 3100) { | |
1162 | /* enable internal oscillator used for charge pump */ | |
1163 | snd_soc_update_bits(codec, SGTL5000_CHIP_CLK_TOP_CTRL, | |
1164 | SGTL5000_INT_OSC_EN, | |
1165 | SGTL5000_INT_OSC_EN); | |
1166 | /* Enable VDDC charge pump */ | |
1167 | ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP; | |
1168 | } else if (vddio >= 3100 && vdda >= 3100) { | |
c7d910b8 | 1169 | ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP; |
9b34e6cc ZZ |
1170 | /* VDDC use VDDIO rail */ |
1171 | lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; | |
1172 | lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << | |
1173 | SGTL5000_VDDC_MAN_ASSN_SHIFT; | |
1174 | } | |
1175 | ||
1176 | snd_soc_write(codec, SGTL5000_CHIP_LINREG_CTRL, lreg_ctrl); | |
1177 | ||
1178 | snd_soc_write(codec, SGTL5000_CHIP_ANA_POWER, ana_pwr); | |
1179 | ||
1180 | /* set voltage to register */ | |
1181 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL, | |
064a4bce | 1182 | SGTL5000_LINREG_VDDD_MASK, 0x8); |
9b34e6cc ZZ |
1183 | |
1184 | /* | |
1185 | * if vddd linear reg has been enabled, | |
1186 | * simple digital supply should be clear to get | |
1187 | * proper VDDD voltage. | |
1188 | */ | |
1189 | if (ana_pwr & SGTL5000_LINEREG_D_POWERUP) | |
1190 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
1191 | SGTL5000_LINREG_SIMPLE_POWERUP, | |
1192 | 0); | |
1193 | else | |
1194 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
1195 | SGTL5000_LINREG_SIMPLE_POWERUP | | |
1196 | SGTL5000_STARTUP_POWERUP, | |
1197 | 0); | |
1198 | ||
1199 | /* | |
1200 | * set ADC/DAC VAG to vdda / 2, | |
1201 | * should stay in range (0.8v, 1.575v) | |
1202 | */ | |
1203 | vag = vdda / 2; | |
1204 | if (vag <= SGTL5000_ANA_GND_BASE) | |
1205 | vag = 0; | |
1206 | else if (vag >= SGTL5000_ANA_GND_BASE + SGTL5000_ANA_GND_STP * | |
1207 | (SGTL5000_ANA_GND_MASK >> SGTL5000_ANA_GND_SHIFT)) | |
1208 | vag = SGTL5000_ANA_GND_MASK >> SGTL5000_ANA_GND_SHIFT; | |
1209 | else | |
1210 | vag = (vag - SGTL5000_ANA_GND_BASE) / SGTL5000_ANA_GND_STP; | |
1211 | ||
1212 | snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL, | |
33cb92cf | 1213 | SGTL5000_ANA_GND_MASK, vag << SGTL5000_ANA_GND_SHIFT); |
9b34e6cc ZZ |
1214 | |
1215 | /* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */ | |
d2b7c2aa AS |
1216 | lo_vag = vddio / 2; |
1217 | if (lo_vag <= SGTL5000_LINE_OUT_GND_BASE) | |
1218 | lo_vag = 0; | |
1219 | else if (lo_vag >= SGTL5000_LINE_OUT_GND_BASE + | |
9b34e6cc | 1220 | SGTL5000_LINE_OUT_GND_STP * SGTL5000_LINE_OUT_GND_MAX) |
d2b7c2aa | 1221 | lo_vag = SGTL5000_LINE_OUT_GND_MAX; |
9b34e6cc | 1222 | else |
d2b7c2aa | 1223 | lo_vag = (lo_vag - SGTL5000_LINE_OUT_GND_BASE) / |
9b34e6cc ZZ |
1224 | SGTL5000_LINE_OUT_GND_STP; |
1225 | ||
1226 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_CTRL, | |
33cb92cf AL |
1227 | SGTL5000_LINE_OUT_CURRENT_MASK | |
1228 | SGTL5000_LINE_OUT_GND_MASK, | |
d2b7c2aa | 1229 | lo_vag << SGTL5000_LINE_OUT_GND_SHIFT | |
9b34e6cc ZZ |
1230 | SGTL5000_LINE_OUT_CURRENT_360u << |
1231 | SGTL5000_LINE_OUT_CURRENT_SHIFT); | |
1232 | ||
1f39d939 AS |
1233 | /* |
1234 | * Set lineout output level in range (0..31) | |
1235 | * the same value is used for right and left channel | |
1236 | * | |
1237 | * Searching for a suitable index solving this formula: | |
1238 | * idx = 40 * log10(vag_val / lo_cagcntrl) + 15 | |
1239 | */ | |
1240 | vol_quot = (vag * 100) / lo_vag; | |
1241 | lo_vol = 0; | |
1242 | for (i = 0; i < ARRAY_SIZE(vol_quot_table); i++) { | |
1243 | if (vol_quot >= vol_quot_table[i]) | |
1244 | lo_vol = i; | |
1245 | else | |
1246 | break; | |
1247 | } | |
1248 | ||
1249 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_VOL, | |
1250 | SGTL5000_LINE_OUT_VOL_RIGHT_MASK | | |
1251 | SGTL5000_LINE_OUT_VOL_LEFT_MASK, | |
1252 | lo_vol << SGTL5000_LINE_OUT_VOL_RIGHT_SHIFT | | |
1253 | lo_vol << SGTL5000_LINE_OUT_VOL_LEFT_SHIFT); | |
1254 | ||
9b34e6cc ZZ |
1255 | return 0; |
1256 | } | |
1257 | ||
e94a4062 WS |
1258 | static int sgtl5000_replace_vddd_with_ldo(struct snd_soc_codec *codec) |
1259 | { | |
1260 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
1261 | int ret; | |
1262 | ||
1263 | /* set internal ldo to 1.2v */ | |
1264 | ret = ldo_regulator_register(codec, &ldo_init_data, LDO_VOLTAGE); | |
1265 | if (ret) { | |
1266 | dev_err(codec->dev, | |
1267 | "Failed to register vddd internal supplies: %d\n", ret); | |
1268 | return ret; | |
1269 | } | |
1270 | ||
1271 | sgtl5000->supplies[VDDD].supply = LDO_CONSUMER_NAME; | |
1272 | ||
e94a4062 WS |
1273 | dev_info(codec->dev, "Using internal LDO instead of VDDD\n"); |
1274 | return 0; | |
1275 | } | |
1276 | ||
9b34e6cc ZZ |
1277 | static int sgtl5000_enable_regulators(struct snd_soc_codec *codec) |
1278 | { | |
9b34e6cc | 1279 | int ret; |
9b34e6cc ZZ |
1280 | int i; |
1281 | int external_vddd = 0; | |
1282 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
11db0da8 | 1283 | struct regulator *vddd; |
9b34e6cc ZZ |
1284 | |
1285 | for (i = 0; i < ARRAY_SIZE(sgtl5000->supplies); i++) | |
1286 | sgtl5000->supplies[i].supply = supply_names[i]; | |
1287 | ||
11db0da8 SG |
1288 | /* External VDDD only works before revision 0x11 */ |
1289 | if (sgtl5000->revision < 0x11) { | |
1290 | vddd = regulator_get_optional(codec->dev, "VDDD"); | |
1291 | if (IS_ERR(vddd)) { | |
1292 | /* See if it's just not registered yet */ | |
1293 | if (PTR_ERR(vddd) == -EPROBE_DEFER) | |
1294 | return -EPROBE_DEFER; | |
1295 | } else { | |
1296 | external_vddd = 1; | |
1297 | regulator_put(vddd); | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | if (!external_vddd) { | |
e94a4062 WS |
1302 | ret = sgtl5000_replace_vddd_with_ldo(codec); |
1303 | if (ret) | |
9b34e6cc | 1304 | return ret; |
9b34e6cc ZZ |
1305 | } |
1306 | ||
e42be7e1 | 1307 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(sgtl5000->supplies), |
11db0da8 SG |
1308 | sgtl5000->supplies); |
1309 | if (ret) | |
1310 | goto err_ldo_remove; | |
1311 | ||
9b34e6cc ZZ |
1312 | ret = regulator_bulk_enable(ARRAY_SIZE(sgtl5000->supplies), |
1313 | sgtl5000->supplies); | |
1314 | if (ret) | |
e42be7e1 | 1315 | goto err_regulator_free; |
9b34e6cc ZZ |
1316 | |
1317 | /* wait for all power rails bring up */ | |
1318 | udelay(10); | |
1319 | ||
9b34e6cc ZZ |
1320 | return 0; |
1321 | ||
e42be7e1 FE |
1322 | err_regulator_free: |
1323 | regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies), | |
1324 | sgtl5000->supplies); | |
11db0da8 SG |
1325 | err_ldo_remove: |
1326 | if (!external_vddd) | |
9b34e6cc ZZ |
1327 | ldo_regulator_remove(codec); |
1328 | return ret; | |
1329 | ||
1330 | } | |
1331 | ||
1332 | static int sgtl5000_probe(struct snd_soc_codec *codec) | |
1333 | { | |
1334 | int ret; | |
1335 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
1336 | ||
9b34e6cc ZZ |
1337 | ret = sgtl5000_enable_regulators(codec); |
1338 | if (ret) | |
1339 | return ret; | |
1340 | ||
1341 | /* power up sgtl5000 */ | |
1342 | ret = sgtl5000_set_power_regs(codec); | |
1343 | if (ret) | |
1344 | goto err; | |
1345 | ||
1346 | /* enable small pop, introduce 400ms delay in turning off */ | |
1347 | snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL, | |
c251ea7b | 1348 | SGTL5000_SMALL_POP, 1); |
9b34e6cc ZZ |
1349 | |
1350 | /* disable short cut detector */ | |
1351 | snd_soc_write(codec, SGTL5000_CHIP_SHORT_CTRL, 0); | |
1352 | ||
1353 | /* | |
1354 | * set i2s as default input of sound switch | |
1355 | * TODO: add sound switch to control and dapm widge. | |
1356 | */ | |
1357 | snd_soc_write(codec, SGTL5000_CHIP_SSS_CTRL, | |
1358 | SGTL5000_DAC_SEL_I2S_IN << SGTL5000_DAC_SEL_SHIFT); | |
1359 | snd_soc_write(codec, SGTL5000_CHIP_DIG_POWER, | |
1360 | SGTL5000_ADC_EN | SGTL5000_DAC_EN); | |
1361 | ||
1362 | /* enable dac volume ramp by default */ | |
1363 | snd_soc_write(codec, SGTL5000_CHIP_ADCDAC_CTRL, | |
1364 | SGTL5000_DAC_VOL_RAMP_EN | | |
1365 | SGTL5000_DAC_MUTE_RIGHT | | |
1366 | SGTL5000_DAC_MUTE_LEFT); | |
1367 | ||
1368 | snd_soc_write(codec, SGTL5000_CHIP_PAD_STRENGTH, 0x015f); | |
1369 | ||
1370 | snd_soc_write(codec, SGTL5000_CHIP_ANA_CTRL, | |
1371 | SGTL5000_HP_ZCD_EN | | |
1372 | SGTL5000_ADC_ZCD_EN); | |
1373 | ||
bd0593f5 JMH |
1374 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
1375 | SGTL5000_BIAS_R_MASK, | |
1376 | sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT); | |
9b34e6cc | 1377 | |
87357797 | 1378 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
e256da84 GR |
1379 | SGTL5000_BIAS_VOLT_MASK, |
1380 | sgtl5000->micbias_voltage << SGTL5000_BIAS_VOLT_SHIFT); | |
9b34e6cc ZZ |
1381 | /* |
1382 | * disable DAP | |
1383 | * TODO: | |
1384 | * Enable DAP in kcontrol and dapm. | |
1385 | */ | |
1386 | snd_soc_write(codec, SGTL5000_DAP_CTRL, 0); | |
1387 | ||
9b34e6cc ZZ |
1388 | return 0; |
1389 | ||
1390 | err: | |
1391 | regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies), | |
1392 | sgtl5000->supplies); | |
e42be7e1 FE |
1393 | regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies), |
1394 | sgtl5000->supplies); | |
9b34e6cc ZZ |
1395 | ldo_regulator_remove(codec); |
1396 | ||
1397 | return ret; | |
1398 | } | |
1399 | ||
1400 | static int sgtl5000_remove(struct snd_soc_codec *codec) | |
1401 | { | |
1402 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
1403 | ||
9b34e6cc ZZ |
1404 | regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies), |
1405 | sgtl5000->supplies); | |
e42be7e1 FE |
1406 | regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies), |
1407 | sgtl5000->supplies); | |
9b34e6cc ZZ |
1408 | ldo_regulator_remove(codec); |
1409 | ||
1410 | return 0; | |
1411 | } | |
1412 | ||
61a142b7 | 1413 | static struct snd_soc_codec_driver sgtl5000_driver = { |
9b34e6cc ZZ |
1414 | .probe = sgtl5000_probe, |
1415 | .remove = sgtl5000_remove, | |
9b34e6cc | 1416 | .set_bias_level = sgtl5000_set_bias_level, |
e649057a | 1417 | .suspend_bias_off = true, |
89989637 FE |
1418 | .controls = sgtl5000_snd_controls, |
1419 | .num_controls = ARRAY_SIZE(sgtl5000_snd_controls), | |
5e0ac527 MB |
1420 | .dapm_widgets = sgtl5000_dapm_widgets, |
1421 | .num_dapm_widgets = ARRAY_SIZE(sgtl5000_dapm_widgets), | |
1422 | .dapm_routes = sgtl5000_dapm_routes, | |
1423 | .num_dapm_routes = ARRAY_SIZE(sgtl5000_dapm_routes), | |
9b34e6cc ZZ |
1424 | }; |
1425 | ||
e5d80e82 FE |
1426 | static const struct regmap_config sgtl5000_regmap = { |
1427 | .reg_bits = 16, | |
1428 | .val_bits = 16, | |
cb23e852 | 1429 | .reg_stride = 2, |
e5d80e82 FE |
1430 | |
1431 | .max_register = SGTL5000_MAX_REG_OFFSET, | |
1432 | .volatile_reg = sgtl5000_volatile, | |
1433 | .readable_reg = sgtl5000_readable, | |
1434 | ||
1435 | .cache_type = REGCACHE_RBTREE, | |
1436 | .reg_defaults = sgtl5000_reg_defaults, | |
1437 | .num_reg_defaults = ARRAY_SIZE(sgtl5000_reg_defaults), | |
1438 | }; | |
1439 | ||
af8ee112 FE |
1440 | /* |
1441 | * Write all the default values from sgtl5000_reg_defaults[] array into the | |
1442 | * sgtl5000 registers, to make sure we always start with the sane registers | |
1443 | * values as stated in the datasheet. | |
1444 | * | |
1445 | * Since sgtl5000 does not have a reset line, nor a reset command in software, | |
1446 | * we follow this approach to guarantee we always start from the default values | |
1447 | * and avoid problems like, not being able to probe after an audio playback | |
1448 | * followed by a system reset or a 'reboot' command in Linux | |
1449 | */ | |
1450 | static int sgtl5000_fill_defaults(struct sgtl5000_priv *sgtl5000) | |
1451 | { | |
1452 | int i, ret, val, index; | |
1453 | ||
1454 | for (i = 0; i < ARRAY_SIZE(sgtl5000_reg_defaults); i++) { | |
1455 | val = sgtl5000_reg_defaults[i].def; | |
1456 | index = sgtl5000_reg_defaults[i].reg; | |
1457 | ret = regmap_write(sgtl5000->regmap, index, val); | |
1458 | if (ret) | |
1459 | return ret; | |
1460 | } | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
7a79e94e BP |
1465 | static int sgtl5000_i2c_probe(struct i2c_client *client, |
1466 | const struct i2c_device_id *id) | |
9b34e6cc ZZ |
1467 | { |
1468 | struct sgtl5000_priv *sgtl5000; | |
b871f1ad | 1469 | int ret, reg, rev; |
bd0593f5 JMH |
1470 | struct device_node *np = client->dev.of_node; |
1471 | u32 value; | |
9b34e6cc | 1472 | |
3f7256fe | 1473 | sgtl5000 = devm_kzalloc(&client->dev, sizeof(*sgtl5000), GFP_KERNEL); |
9b34e6cc ZZ |
1474 | if (!sgtl5000) |
1475 | return -ENOMEM; | |
1476 | ||
e5d80e82 FE |
1477 | sgtl5000->regmap = devm_regmap_init_i2c(client, &sgtl5000_regmap); |
1478 | if (IS_ERR(sgtl5000->regmap)) { | |
1479 | ret = PTR_ERR(sgtl5000->regmap); | |
1480 | dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret); | |
1481 | return ret; | |
1482 | } | |
1483 | ||
9e13f345 FE |
1484 | sgtl5000->mclk = devm_clk_get(&client->dev, NULL); |
1485 | if (IS_ERR(sgtl5000->mclk)) { | |
1486 | ret = PTR_ERR(sgtl5000->mclk); | |
1487 | dev_err(&client->dev, "Failed to get mclock: %d\n", ret); | |
46a5905e SG |
1488 | /* Defer the probe to see if the clk will be provided later */ |
1489 | if (ret == -ENOENT) | |
1490 | return -EPROBE_DEFER; | |
9e13f345 FE |
1491 | return ret; |
1492 | } | |
1493 | ||
1494 | ret = clk_prepare_enable(sgtl5000->mclk); | |
1495 | if (ret) | |
1496 | return ret; | |
1497 | ||
58cc9c9a EN |
1498 | /* Need 8 clocks before I2C accesses */ |
1499 | udelay(1); | |
1500 | ||
b871f1ad FE |
1501 | /* read chip information */ |
1502 | ret = regmap_read(sgtl5000->regmap, SGTL5000_CHIP_ID, ®); | |
1503 | if (ret) | |
9e13f345 | 1504 | goto disable_clk; |
b871f1ad FE |
1505 | |
1506 | if (((reg & SGTL5000_PARTID_MASK) >> SGTL5000_PARTID_SHIFT) != | |
1507 | SGTL5000_PARTID_PART_ID) { | |
1508 | dev_err(&client->dev, | |
1509 | "Device with ID register %x is not a sgtl5000\n", reg); | |
9e13f345 FE |
1510 | ret = -ENODEV; |
1511 | goto disable_clk; | |
b871f1ad FE |
1512 | } |
1513 | ||
1514 | rev = (reg & SGTL5000_REVID_MASK) >> SGTL5000_REVID_SHIFT; | |
1515 | dev_info(&client->dev, "sgtl5000 revision 0x%x\n", rev); | |
252e91ff | 1516 | sgtl5000->revision = rev; |
b871f1ad | 1517 | |
bd0593f5 JMH |
1518 | if (np) { |
1519 | if (!of_property_read_u32(np, | |
1520 | "micbias-resistor-k-ohms", &value)) { | |
1521 | switch (value) { | |
1522 | case SGTL5000_MICBIAS_OFF: | |
1523 | sgtl5000->micbias_resistor = 0; | |
1524 | break; | |
1525 | case SGTL5000_MICBIAS_2K: | |
1526 | sgtl5000->micbias_resistor = 1; | |
1527 | break; | |
1528 | case SGTL5000_MICBIAS_4K: | |
1529 | sgtl5000->micbias_resistor = 2; | |
1530 | break; | |
1531 | case SGTL5000_MICBIAS_8K: | |
1532 | sgtl5000->micbias_resistor = 3; | |
1533 | break; | |
1534 | default: | |
1535 | sgtl5000->micbias_resistor = 2; | |
1536 | dev_err(&client->dev, | |
1537 | "Unsuitable MicBias resistor\n"); | |
1538 | } | |
1539 | } else { | |
1540 | /* default is 4Kohms */ | |
1541 | sgtl5000->micbias_resistor = 2; | |
1542 | } | |
87357797 JMH |
1543 | if (!of_property_read_u32(np, |
1544 | "micbias-voltage-m-volts", &value)) { | |
1545 | /* 1250mV => 0 */ | |
1546 | /* steps of 250mV */ | |
1547 | if ((value >= 1250) && (value <= 3000)) | |
1548 | sgtl5000->micbias_voltage = (value / 250) - 5; | |
1549 | else { | |
1550 | sgtl5000->micbias_voltage = 0; | |
bd0593f5 | 1551 | dev_err(&client->dev, |
fb97d75b | 1552 | "Unsuitable MicBias voltage\n"); |
bd0593f5 JMH |
1553 | } |
1554 | } else { | |
87357797 | 1555 | sgtl5000->micbias_voltage = 0; |
bd0593f5 JMH |
1556 | } |
1557 | } | |
1558 | ||
9b34e6cc ZZ |
1559 | i2c_set_clientdata(client, sgtl5000); |
1560 | ||
af8ee112 FE |
1561 | /* Ensure sgtl5000 will start with sane register values */ |
1562 | ret = sgtl5000_fill_defaults(sgtl5000); | |
1563 | if (ret) | |
9e13f345 | 1564 | goto disable_clk; |
af8ee112 | 1565 | |
9b34e6cc ZZ |
1566 | ret = snd_soc_register_codec(&client->dev, |
1567 | &sgtl5000_driver, &sgtl5000_dai, 1); | |
9e13f345 FE |
1568 | if (ret) |
1569 | goto disable_clk; | |
1570 | ||
1571 | return 0; | |
1572 | ||
1573 | disable_clk: | |
1574 | clk_disable_unprepare(sgtl5000->mclk); | |
512fa7c4 | 1575 | return ret; |
9b34e6cc ZZ |
1576 | } |
1577 | ||
7a79e94e | 1578 | static int sgtl5000_i2c_remove(struct i2c_client *client) |
9b34e6cc | 1579 | { |
7c647af4 | 1580 | struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client); |
9b34e6cc | 1581 | |
9e13f345 FE |
1582 | snd_soc_unregister_codec(&client->dev); |
1583 | clk_disable_unprepare(sgtl5000->mclk); | |
9b34e6cc ZZ |
1584 | return 0; |
1585 | } | |
1586 | ||
1587 | static const struct i2c_device_id sgtl5000_id[] = { | |
1588 | {"sgtl5000", 0}, | |
1589 | {}, | |
1590 | }; | |
1591 | ||
1592 | MODULE_DEVICE_TABLE(i2c, sgtl5000_id); | |
1593 | ||
58e49424 SG |
1594 | static const struct of_device_id sgtl5000_dt_ids[] = { |
1595 | { .compatible = "fsl,sgtl5000", }, | |
1596 | { /* sentinel */ } | |
1597 | }; | |
4c54c6de | 1598 | MODULE_DEVICE_TABLE(of, sgtl5000_dt_ids); |
58e49424 | 1599 | |
9b34e6cc ZZ |
1600 | static struct i2c_driver sgtl5000_i2c_driver = { |
1601 | .driver = { | |
1602 | .name = "sgtl5000", | |
58e49424 | 1603 | .of_match_table = sgtl5000_dt_ids, |
9b34e6cc ZZ |
1604 | }, |
1605 | .probe = sgtl5000_i2c_probe, | |
7a79e94e | 1606 | .remove = sgtl5000_i2c_remove, |
9b34e6cc ZZ |
1607 | .id_table = sgtl5000_id, |
1608 | }; | |
1609 | ||
67d45090 | 1610 | module_i2c_driver(sgtl5000_i2c_driver); |
9b34e6cc ZZ |
1611 | |
1612 | MODULE_DESCRIPTION("Freescale SGTL5000 ALSA SoC Codec Driver"); | |
f7cb8a4b | 1613 | MODULE_AUTHOR("Zeng Zhaoming <zengzm.kernel@gmail.com>"); |
9b34e6cc | 1614 | MODULE_LICENSE("GPL"); |