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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_REF_CTRL, 0x0000 }, |
51 | { SGTL5000_CHIP_MIC_CTRL, 0x0000 }, | |
52 | { SGTL5000_CHIP_LINE_OUT_CTRL, 0x0000 }, | |
e5d80e82 | 53 | { SGTL5000_CHIP_LINE_OUT_VOL, 0x0404 }, |
e5d80e82 | 54 | { SGTL5000_CHIP_PLL_CTRL, 0x5000 }, |
29aa37cd FE |
55 | { SGTL5000_CHIP_CLK_TOP_CTRL, 0x0000 }, |
56 | { SGTL5000_CHIP_ANA_STATUS, 0x0000 }, | |
57 | { SGTL5000_CHIP_SHORT_CTRL, 0x0000 }, | |
58 | { SGTL5000_CHIP_ANA_TEST2, 0x0000 }, | |
59 | { SGTL5000_DAP_CTRL, 0x0000 }, | |
60 | { SGTL5000_DAP_PEQ, 0x0000 }, | |
e5d80e82 FE |
61 | { SGTL5000_DAP_BASS_ENHANCE, 0x0040 }, |
62 | { SGTL5000_DAP_BASS_ENHANCE_CTRL, 0x051f }, | |
29aa37cd | 63 | { SGTL5000_DAP_AUDIO_EQ, 0x0000 }, |
e5d80e82 FE |
64 | { SGTL5000_DAP_SURROUND, 0x0040 }, |
65 | { SGTL5000_DAP_EQ_BASS_BAND0, 0x002f }, | |
66 | { SGTL5000_DAP_EQ_BASS_BAND1, 0x002f }, | |
67 | { SGTL5000_DAP_EQ_BASS_BAND2, 0x002f }, | |
68 | { SGTL5000_DAP_EQ_BASS_BAND3, 0x002f }, | |
69 | { SGTL5000_DAP_EQ_BASS_BAND4, 0x002f }, | |
70 | { SGTL5000_DAP_MAIN_CHAN, 0x8000 }, | |
29aa37cd | 71 | { SGTL5000_DAP_MIX_CHAN, 0x0000 }, |
e5d80e82 FE |
72 | { SGTL5000_DAP_AVC_CTRL, 0x0510 }, |
73 | { SGTL5000_DAP_AVC_THRESHOLD, 0x1473 }, | |
74 | { SGTL5000_DAP_AVC_ATTACK, 0x0028 }, | |
75 | { SGTL5000_DAP_AVC_DECAY, 0x0050 }, | |
9b34e6cc ZZ |
76 | }; |
77 | ||
78 | /* regulator supplies for sgtl5000, VDDD is an optional external supply */ | |
79 | enum sgtl5000_regulator_supplies { | |
80 | VDDA, | |
81 | VDDIO, | |
82 | VDDD, | |
83 | SGTL5000_SUPPLY_NUM | |
84 | }; | |
85 | ||
86 | /* vddd is optional supply */ | |
87 | static const char *supply_names[SGTL5000_SUPPLY_NUM] = { | |
88 | "VDDA", | |
89 | "VDDIO", | |
90 | "VDDD" | |
91 | }; | |
92 | ||
9b34e6cc | 93 | #define LDO_VOLTAGE 1200000 |
3d632cc8 | 94 | #define LINREG_VDDD ((1600 - LDO_VOLTAGE / 1000) / 50) |
9b34e6cc | 95 | |
bd0593f5 JMH |
96 | enum sgtl5000_micbias_resistor { |
97 | SGTL5000_MICBIAS_OFF = 0, | |
98 | SGTL5000_MICBIAS_2K = 2, | |
99 | SGTL5000_MICBIAS_4K = 4, | |
100 | SGTL5000_MICBIAS_8K = 8, | |
101 | }; | |
102 | ||
9b34e6cc ZZ |
103 | /* sgtl5000 private structure in codec */ |
104 | struct sgtl5000_priv { | |
105 | int sysclk; /* sysclk rate */ | |
106 | int master; /* i2s master or not */ | |
107 | int fmt; /* i2s data format */ | |
108 | struct regulator_bulk_data supplies[SGTL5000_SUPPLY_NUM]; | |
940adb28 | 109 | int num_supplies; |
e5d80e82 | 110 | struct regmap *regmap; |
9e13f345 | 111 | struct clk *mclk; |
252e91ff | 112 | int revision; |
bd0593f5 | 113 | u8 micbias_resistor; |
87357797 | 114 | u8 micbias_voltage; |
9b34e6cc ZZ |
115 | }; |
116 | ||
117 | /* | |
118 | * mic_bias power on/off share the same register bits with | |
119 | * output impedance of mic bias, when power on mic bias, we | |
120 | * need reclaim it to impedance value. | |
121 | * 0x0 = Powered off | |
122 | * 0x1 = 2Kohm | |
123 | * 0x2 = 4Kohm | |
124 | * 0x3 = 8Kohm | |
125 | */ | |
126 | static int mic_bias_event(struct snd_soc_dapm_widget *w, | |
127 | struct snd_kcontrol *kcontrol, int event) | |
128 | { | |
73bffd17 LPC |
129 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
130 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
bd0593f5 | 131 | |
9b34e6cc ZZ |
132 | switch (event) { |
133 | case SND_SOC_DAPM_POST_PMU: | |
bd0593f5 | 134 | /* change mic bias resistor */ |
73bffd17 | 135 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
bd0593f5 JMH |
136 | SGTL5000_BIAS_R_MASK, |
137 | sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT); | |
9b34e6cc ZZ |
138 | break; |
139 | ||
140 | case SND_SOC_DAPM_PRE_PMD: | |
73bffd17 | 141 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
dc56c5a8 | 142 | SGTL5000_BIAS_R_MASK, 0); |
9b34e6cc ZZ |
143 | break; |
144 | } | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
f0cdcf3a ZZ |
149 | * As manual described, ADC/DAC only works when VAG powerup, |
150 | * So enabled VAG before ADC/DAC up. | |
151 | * In power down case, we need wait 400ms when vag fully ramped down. | |
9b34e6cc | 152 | */ |
f0cdcf3a | 153 | static int power_vag_event(struct snd_soc_dapm_widget *w, |
9b34e6cc ZZ |
154 | struct snd_kcontrol *kcontrol, int event) |
155 | { | |
73bffd17 | 156 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
f091f3f0 LW |
157 | const u32 mask = SGTL5000_DAC_POWERUP | SGTL5000_ADC_POWERUP; |
158 | ||
9b34e6cc | 159 | switch (event) { |
dd4d2d6d | 160 | case SND_SOC_DAPM_POST_PMU: |
73bffd17 | 161 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, |
9b34e6cc | 162 | SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); |
c803cc2d | 163 | msleep(400); |
9b34e6cc ZZ |
164 | break; |
165 | ||
dd4d2d6d | 166 | case SND_SOC_DAPM_PRE_PMD: |
f091f3f0 LW |
167 | /* |
168 | * Don't clear VAG_POWERUP, when both DAC and ADC are | |
169 | * operational to prevent inadvertently starving the | |
170 | * other one of them. | |
171 | */ | |
73bffd17 | 172 | if ((snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER) & |
f091f3f0 | 173 | mask) != mask) { |
73bffd17 | 174 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, |
f091f3f0 LW |
175 | SGTL5000_VAG_POWERUP, 0); |
176 | msleep(400); | |
177 | } | |
9b34e6cc ZZ |
178 | break; |
179 | default: | |
180 | break; | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | /* input sources for ADC */ | |
187 | static const char *adc_mux_text[] = { | |
188 | "MIC_IN", "LINE_IN" | |
189 | }; | |
190 | ||
c8ed6504 TI |
191 | static SOC_ENUM_SINGLE_DECL(adc_enum, |
192 | SGTL5000_CHIP_ANA_CTRL, 2, | |
193 | adc_mux_text); | |
9b34e6cc ZZ |
194 | |
195 | static const struct snd_kcontrol_new adc_mux = | |
196 | SOC_DAPM_ENUM("Capture Mux", adc_enum); | |
197 | ||
198 | /* input sources for DAC */ | |
199 | static const char *dac_mux_text[] = { | |
200 | "DAC", "LINE_IN" | |
201 | }; | |
202 | ||
c8ed6504 TI |
203 | static SOC_ENUM_SINGLE_DECL(dac_enum, |
204 | SGTL5000_CHIP_ANA_CTRL, 6, | |
205 | dac_mux_text); | |
9b34e6cc ZZ |
206 | |
207 | static const struct snd_kcontrol_new dac_mux = | |
208 | SOC_DAPM_ENUM("Headphone Mux", dac_enum); | |
209 | ||
210 | static const struct snd_soc_dapm_widget sgtl5000_dapm_widgets[] = { | |
211 | SND_SOC_DAPM_INPUT("LINE_IN"), | |
212 | SND_SOC_DAPM_INPUT("MIC_IN"), | |
213 | ||
214 | SND_SOC_DAPM_OUTPUT("HP_OUT"), | |
215 | SND_SOC_DAPM_OUTPUT("LINE_OUT"), | |
216 | ||
8fc8ec92 MB |
217 | SND_SOC_DAPM_SUPPLY("Mic Bias", SGTL5000_CHIP_MIC_CTRL, 8, 0, |
218 | mic_bias_event, | |
219 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), | |
9b34e6cc | 220 | |
f0cdcf3a ZZ |
221 | SND_SOC_DAPM_PGA("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0), |
222 | SND_SOC_DAPM_PGA("LO", SGTL5000_CHIP_ANA_POWER, 0, 0, NULL, 0), | |
9b34e6cc ZZ |
223 | |
224 | SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, &adc_mux), | |
225 | SND_SOC_DAPM_MUX("Headphone Mux", SND_SOC_NOPM, 0, 0, &dac_mux), | |
226 | ||
227 | /* aif for i2s input */ | |
228 | SND_SOC_DAPM_AIF_IN("AIFIN", "Playback", | |
229 | 0, SGTL5000_CHIP_DIG_POWER, | |
230 | 0, 0), | |
231 | ||
232 | /* aif for i2s output */ | |
233 | SND_SOC_DAPM_AIF_OUT("AIFOUT", "Capture", | |
234 | 0, SGTL5000_CHIP_DIG_POWER, | |
235 | 1, 0), | |
236 | ||
f0cdcf3a | 237 | SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0), |
9b34e6cc | 238 | SND_SOC_DAPM_DAC("DAC", "Playback", SGTL5000_CHIP_ANA_POWER, 3, 0), |
dd4d2d6d MV |
239 | |
240 | SND_SOC_DAPM_PRE("VAG_POWER_PRE", power_vag_event), | |
241 | SND_SOC_DAPM_POST("VAG_POWER_POST", power_vag_event), | |
9b34e6cc ZZ |
242 | }; |
243 | ||
244 | /* routes for sgtl5000 */ | |
89989637 | 245 | static const struct snd_soc_dapm_route sgtl5000_dapm_routes[] = { |
9b34e6cc ZZ |
246 | {"Capture Mux", "LINE_IN", "LINE_IN"}, /* line_in --> adc_mux */ |
247 | {"Capture Mux", "MIC_IN", "MIC_IN"}, /* mic_in --> adc_mux */ | |
248 | ||
249 | {"ADC", NULL, "Capture Mux"}, /* adc_mux --> adc */ | |
250 | {"AIFOUT", NULL, "ADC"}, /* adc --> i2s_out */ | |
251 | ||
252 | {"DAC", NULL, "AIFIN"}, /* i2s-->dac,skip audio mux */ | |
253 | {"Headphone Mux", "DAC", "DAC"}, /* dac --> hp_mux */ | |
254 | {"LO", NULL, "DAC"}, /* dac --> line_out */ | |
255 | ||
256 | {"Headphone Mux", "LINE_IN", "LINE_IN"},/* line_in --> hp_mux */ | |
257 | {"HP", NULL, "Headphone Mux"}, /* hp_mux --> hp */ | |
258 | ||
259 | {"LINE_OUT", NULL, "LO"}, | |
260 | {"HP_OUT", NULL, "HP"}, | |
261 | }; | |
262 | ||
263 | /* custom function to fetch info of PCM playback volume */ | |
264 | static int dac_info_volsw(struct snd_kcontrol *kcontrol, | |
265 | struct snd_ctl_elem_info *uinfo) | |
266 | { | |
267 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
268 | uinfo->count = 2; | |
269 | uinfo->value.integer.min = 0; | |
270 | uinfo->value.integer.max = 0xfc - 0x3c; | |
271 | return 0; | |
272 | } | |
273 | ||
274 | /* | |
275 | * custom function to get of PCM playback volume | |
276 | * | |
277 | * dac volume register | |
278 | * 15-------------8-7--------------0 | |
279 | * | R channel vol | L channel vol | | |
280 | * ------------------------------- | |
281 | * | |
282 | * PCM volume with 0.5017 dB steps from 0 to -90 dB | |
283 | * | |
284 | * register values map to dB | |
285 | * 0x3B and less = Reserved | |
286 | * 0x3C = 0 dB | |
287 | * 0x3D = -0.5 dB | |
288 | * 0xF0 = -90 dB | |
289 | * 0xFC and greater = Muted | |
290 | * | |
291 | * register value map to userspace value | |
292 | * | |
293 | * register value 0x3c(0dB) 0xf0(-90dB)0xfc | |
294 | * ------------------------------ | |
295 | * userspace value 0xc0 0 | |
296 | */ | |
297 | static int dac_get_volsw(struct snd_kcontrol *kcontrol, | |
298 | struct snd_ctl_elem_value *ucontrol) | |
299 | { | |
ea53bf77 | 300 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
9b34e6cc ZZ |
301 | int reg; |
302 | int l; | |
303 | int r; | |
304 | ||
305 | reg = snd_soc_read(codec, SGTL5000_CHIP_DAC_VOL); | |
306 | ||
307 | /* get left channel volume */ | |
308 | l = (reg & SGTL5000_DAC_VOL_LEFT_MASK) >> SGTL5000_DAC_VOL_LEFT_SHIFT; | |
309 | ||
310 | /* get right channel volume */ | |
311 | r = (reg & SGTL5000_DAC_VOL_RIGHT_MASK) >> SGTL5000_DAC_VOL_RIGHT_SHIFT; | |
312 | ||
313 | /* make sure value fall in (0x3c,0xfc) */ | |
314 | l = clamp(l, 0x3c, 0xfc); | |
315 | r = clamp(r, 0x3c, 0xfc); | |
316 | ||
317 | /* invert it and map to userspace value */ | |
318 | l = 0xfc - l; | |
319 | r = 0xfc - r; | |
320 | ||
321 | ucontrol->value.integer.value[0] = l; | |
322 | ucontrol->value.integer.value[1] = r; | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | /* | |
328 | * custom function to put of PCM playback volume | |
329 | * | |
330 | * dac volume register | |
331 | * 15-------------8-7--------------0 | |
332 | * | R channel vol | L channel vol | | |
333 | * ------------------------------- | |
334 | * | |
335 | * PCM volume with 0.5017 dB steps from 0 to -90 dB | |
336 | * | |
337 | * register values map to dB | |
338 | * 0x3B and less = Reserved | |
339 | * 0x3C = 0 dB | |
340 | * 0x3D = -0.5 dB | |
341 | * 0xF0 = -90 dB | |
342 | * 0xFC and greater = Muted | |
343 | * | |
344 | * userspace value map to register value | |
345 | * | |
346 | * userspace value 0xc0 0 | |
347 | * ------------------------------ | |
348 | * register value 0x3c(0dB) 0xf0(-90dB)0xfc | |
349 | */ | |
350 | static int dac_put_volsw(struct snd_kcontrol *kcontrol, | |
351 | struct snd_ctl_elem_value *ucontrol) | |
352 | { | |
ea53bf77 | 353 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
9b34e6cc ZZ |
354 | int reg; |
355 | int l; | |
356 | int r; | |
357 | ||
358 | l = ucontrol->value.integer.value[0]; | |
359 | r = ucontrol->value.integer.value[1]; | |
360 | ||
361 | /* make sure userspace volume fall in (0, 0xfc-0x3c) */ | |
362 | l = clamp(l, 0, 0xfc - 0x3c); | |
363 | r = clamp(r, 0, 0xfc - 0x3c); | |
364 | ||
365 | /* invert it, get the value can be set to register */ | |
366 | l = 0xfc - l; | |
367 | r = 0xfc - r; | |
368 | ||
369 | /* shift to get the register value */ | |
370 | reg = l << SGTL5000_DAC_VOL_LEFT_SHIFT | | |
371 | r << SGTL5000_DAC_VOL_RIGHT_SHIFT; | |
372 | ||
373 | snd_soc_write(codec, SGTL5000_CHIP_DAC_VOL, reg); | |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
378 | static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate, -600, 600, 0); | |
379 | ||
380 | /* tlv for mic gain, 0db 20db 30db 40db */ | |
53eb1ca3 | 381 | static const DECLARE_TLV_DB_RANGE(mic_gain_tlv, |
9b34e6cc | 382 | 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), |
53eb1ca3 LPC |
383 | 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0) |
384 | ); | |
9b34e6cc ZZ |
385 | |
386 | /* tlv for hp volume, -51.5db to 12.0db, step .5db */ | |
387 | static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0); | |
388 | ||
389 | static const struct snd_kcontrol_new sgtl5000_snd_controls[] = { | |
390 | /* SOC_DOUBLE_S8_TLV with invert */ | |
391 | { | |
392 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
393 | .name = "PCM Playback Volume", | |
394 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
395 | SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
396 | .info = dac_info_volsw, | |
397 | .get = dac_get_volsw, | |
398 | .put = dac_put_volsw, | |
399 | }, | |
400 | ||
401 | SOC_DOUBLE("Capture Volume", SGTL5000_CHIP_ANA_ADC_CTRL, 0, 4, 0xf, 0), | |
402 | SOC_SINGLE_TLV("Capture Attenuate Switch (-6dB)", | |
403 | SGTL5000_CHIP_ANA_ADC_CTRL, | |
65f2b226 | 404 | 8, 1, 0, capture_6db_attenuate), |
9b34e6cc ZZ |
405 | SOC_SINGLE("Capture ZC Switch", SGTL5000_CHIP_ANA_CTRL, 1, 1, 0), |
406 | ||
407 | SOC_DOUBLE_TLV("Headphone Playback Volume", | |
408 | SGTL5000_CHIP_ANA_HP_CTRL, | |
409 | 0, 8, | |
410 | 0x7f, 1, | |
411 | headphone_volume), | |
412 | SOC_SINGLE("Headphone Playback ZC Switch", SGTL5000_CHIP_ANA_CTRL, | |
413 | 5, 1, 0), | |
414 | ||
415 | SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL, | |
b50684da | 416 | 0, 3, 0, mic_gain_tlv), |
9b34e6cc ZZ |
417 | }; |
418 | ||
419 | /* mute the codec used by alsa core */ | |
420 | static int sgtl5000_digital_mute(struct snd_soc_dai *codec_dai, int mute) | |
421 | { | |
422 | struct snd_soc_codec *codec = codec_dai->codec; | |
423 | u16 adcdac_ctrl = SGTL5000_DAC_MUTE_LEFT | SGTL5000_DAC_MUTE_RIGHT; | |
424 | ||
425 | snd_soc_update_bits(codec, SGTL5000_CHIP_ADCDAC_CTRL, | |
426 | adcdac_ctrl, mute ? adcdac_ctrl : 0); | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | /* set codec format */ | |
432 | static int sgtl5000_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
433 | { | |
434 | struct snd_soc_codec *codec = codec_dai->codec; | |
435 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
436 | u16 i2sctl = 0; | |
437 | ||
438 | sgtl5000->master = 0; | |
439 | /* | |
440 | * i2s clock and frame master setting. | |
441 | * ONLY support: | |
442 | * - clock and frame slave, | |
443 | * - clock and frame master | |
444 | */ | |
445 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
446 | case SND_SOC_DAIFMT_CBS_CFS: | |
447 | break; | |
448 | case SND_SOC_DAIFMT_CBM_CFM: | |
449 | i2sctl |= SGTL5000_I2S_MASTER; | |
450 | sgtl5000->master = 1; | |
451 | break; | |
452 | default: | |
453 | return -EINVAL; | |
454 | } | |
455 | ||
456 | /* setting i2s data format */ | |
457 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
458 | case SND_SOC_DAIFMT_DSP_A: | |
9ee802ec | 459 | i2sctl |= SGTL5000_I2S_MODE_PCM << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
460 | break; |
461 | case SND_SOC_DAIFMT_DSP_B: | |
9ee802ec | 462 | i2sctl |= SGTL5000_I2S_MODE_PCM << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
463 | i2sctl |= SGTL5000_I2S_LRALIGN; |
464 | break; | |
465 | case SND_SOC_DAIFMT_I2S: | |
9ee802ec | 466 | i2sctl |= SGTL5000_I2S_MODE_I2S_LJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
467 | break; |
468 | case SND_SOC_DAIFMT_RIGHT_J: | |
9ee802ec | 469 | i2sctl |= SGTL5000_I2S_MODE_RJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
470 | i2sctl |= SGTL5000_I2S_LRPOL; |
471 | break; | |
472 | case SND_SOC_DAIFMT_LEFT_J: | |
9ee802ec | 473 | i2sctl |= SGTL5000_I2S_MODE_I2S_LJ << SGTL5000_I2S_MODE_SHIFT; |
9b34e6cc ZZ |
474 | i2sctl |= SGTL5000_I2S_LRALIGN; |
475 | break; | |
476 | default: | |
477 | return -EINVAL; | |
478 | } | |
479 | ||
480 | sgtl5000->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; | |
481 | ||
482 | /* Clock inversion */ | |
483 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
484 | case SND_SOC_DAIFMT_NB_NF: | |
485 | break; | |
486 | case SND_SOC_DAIFMT_IB_NF: | |
487 | i2sctl |= SGTL5000_I2S_SCLK_INV; | |
488 | break; | |
489 | default: | |
490 | return -EINVAL; | |
491 | } | |
492 | ||
493 | snd_soc_write(codec, SGTL5000_CHIP_I2S_CTRL, i2sctl); | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | /* set codec sysclk */ | |
499 | static int sgtl5000_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
500 | int clk_id, unsigned int freq, int dir) | |
501 | { | |
502 | struct snd_soc_codec *codec = codec_dai->codec; | |
503 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
504 | ||
505 | switch (clk_id) { | |
506 | case SGTL5000_SYSCLK: | |
507 | sgtl5000->sysclk = freq; | |
508 | break; | |
509 | default: | |
510 | return -EINVAL; | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | /* | |
517 | * set clock according to i2s frame clock, | |
7f6d75d7 FE |
518 | * sgtl5000 provides 2 clock sources: |
519 | * 1. sys_mclk: sample freq can only be configured to | |
9b34e6cc | 520 | * 1/256, 1/384, 1/512 of sys_mclk. |
7f6d75d7 | 521 | * 2. pll: can derive any audio clocks. |
9b34e6cc ZZ |
522 | * |
523 | * clock setting rules: | |
7f6d75d7 FE |
524 | * 1. in slave mode, only sys_mclk can be used |
525 | * 2. as constraint by sys_mclk, sample freq should be set to 32 kHz, 44.1 kHz | |
526 | * and above. | |
527 | * 3. usage of sys_mclk is preferred over pll to save power. | |
9b34e6cc ZZ |
528 | */ |
529 | static int sgtl5000_set_clock(struct snd_soc_codec *codec, int frame_rate) | |
530 | { | |
531 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
532 | int clk_ctl = 0; | |
533 | int sys_fs; /* sample freq */ | |
534 | ||
535 | /* | |
536 | * sample freq should be divided by frame clock, | |
7f6d75d7 FE |
537 | * if frame clock is lower than 44.1 kHz, sample freq should be set to |
538 | * 32 kHz or 44.1 kHz. | |
9b34e6cc ZZ |
539 | */ |
540 | switch (frame_rate) { | |
541 | case 8000: | |
542 | case 16000: | |
543 | sys_fs = 32000; | |
544 | break; | |
545 | case 11025: | |
546 | case 22050: | |
547 | sys_fs = 44100; | |
548 | break; | |
549 | default: | |
550 | sys_fs = frame_rate; | |
551 | break; | |
552 | } | |
553 | ||
554 | /* set divided factor of frame clock */ | |
555 | switch (sys_fs / frame_rate) { | |
556 | case 4: | |
557 | clk_ctl |= SGTL5000_RATE_MODE_DIV_4 << SGTL5000_RATE_MODE_SHIFT; | |
558 | break; | |
559 | case 2: | |
560 | clk_ctl |= SGTL5000_RATE_MODE_DIV_2 << SGTL5000_RATE_MODE_SHIFT; | |
561 | break; | |
562 | case 1: | |
563 | clk_ctl |= SGTL5000_RATE_MODE_DIV_1 << SGTL5000_RATE_MODE_SHIFT; | |
564 | break; | |
565 | default: | |
566 | return -EINVAL; | |
567 | } | |
568 | ||
569 | /* set the sys_fs according to frame rate */ | |
570 | switch (sys_fs) { | |
571 | case 32000: | |
572 | clk_ctl |= SGTL5000_SYS_FS_32k << SGTL5000_SYS_FS_SHIFT; | |
573 | break; | |
574 | case 44100: | |
575 | clk_ctl |= SGTL5000_SYS_FS_44_1k << SGTL5000_SYS_FS_SHIFT; | |
576 | break; | |
577 | case 48000: | |
578 | clk_ctl |= SGTL5000_SYS_FS_48k << SGTL5000_SYS_FS_SHIFT; | |
579 | break; | |
580 | case 96000: | |
581 | clk_ctl |= SGTL5000_SYS_FS_96k << SGTL5000_SYS_FS_SHIFT; | |
582 | break; | |
583 | default: | |
584 | dev_err(codec->dev, "frame rate %d not supported\n", | |
585 | frame_rate); | |
586 | return -EINVAL; | |
587 | } | |
588 | ||
589 | /* | |
590 | * calculate the divider of mclk/sample_freq, | |
7f6d75d7 FE |
591 | * factor of freq = 96 kHz can only be 256, since mclk is in the range |
592 | * of 8 MHz - 27 MHz | |
9b34e6cc | 593 | */ |
2a4cfd10 | 594 | switch (sgtl5000->sysclk / frame_rate) { |
9b34e6cc ZZ |
595 | case 256: |
596 | clk_ctl |= SGTL5000_MCLK_FREQ_256FS << | |
597 | SGTL5000_MCLK_FREQ_SHIFT; | |
598 | break; | |
599 | case 384: | |
600 | clk_ctl |= SGTL5000_MCLK_FREQ_384FS << | |
601 | SGTL5000_MCLK_FREQ_SHIFT; | |
602 | break; | |
603 | case 512: | |
604 | clk_ctl |= SGTL5000_MCLK_FREQ_512FS << | |
605 | SGTL5000_MCLK_FREQ_SHIFT; | |
606 | break; | |
607 | default: | |
7f6d75d7 | 608 | /* if mclk does not satisfy the divider, use pll */ |
9b34e6cc ZZ |
609 | if (sgtl5000->master) { |
610 | clk_ctl |= SGTL5000_MCLK_FREQ_PLL << | |
611 | SGTL5000_MCLK_FREQ_SHIFT; | |
612 | } else { | |
613 | dev_err(codec->dev, | |
614 | "PLL not supported in slave mode\n"); | |
fa558d01 FE |
615 | dev_err(codec->dev, "%d ratio is not supported. " |
616 | "SYS_MCLK needs to be 256, 384 or 512 * fs\n", | |
2a4cfd10 | 617 | sgtl5000->sysclk / frame_rate); |
9b34e6cc ZZ |
618 | return -EINVAL; |
619 | } | |
620 | } | |
621 | ||
622 | /* if using pll, please check manual 6.4.2 for detail */ | |
623 | if ((clk_ctl & SGTL5000_MCLK_FREQ_MASK) == SGTL5000_MCLK_FREQ_PLL) { | |
624 | u64 out, t; | |
625 | int div2; | |
626 | int pll_ctl; | |
627 | unsigned int in, int_div, frac_div; | |
628 | ||
629 | if (sgtl5000->sysclk > 17000000) { | |
630 | div2 = 1; | |
631 | in = sgtl5000->sysclk / 2; | |
632 | } else { | |
633 | div2 = 0; | |
634 | in = sgtl5000->sysclk; | |
635 | } | |
636 | if (sys_fs == 44100) | |
637 | out = 180633600; | |
638 | else | |
639 | out = 196608000; | |
640 | t = do_div(out, in); | |
641 | int_div = out; | |
642 | t *= 2048; | |
643 | do_div(t, in); | |
644 | frac_div = t; | |
645 | pll_ctl = int_div << SGTL5000_PLL_INT_DIV_SHIFT | | |
646 | frac_div << SGTL5000_PLL_FRAC_DIV_SHIFT; | |
647 | ||
648 | snd_soc_write(codec, SGTL5000_CHIP_PLL_CTRL, pll_ctl); | |
649 | if (div2) | |
650 | snd_soc_update_bits(codec, | |
651 | SGTL5000_CHIP_CLK_TOP_CTRL, | |
652 | SGTL5000_INPUT_FREQ_DIV2, | |
653 | SGTL5000_INPUT_FREQ_DIV2); | |
654 | else | |
655 | snd_soc_update_bits(codec, | |
656 | SGTL5000_CHIP_CLK_TOP_CTRL, | |
657 | SGTL5000_INPUT_FREQ_DIV2, | |
658 | 0); | |
659 | ||
660 | /* power up pll */ | |
661 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
662 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP, | |
663 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP); | |
e06e4c2d OS |
664 | |
665 | /* if using pll, clk_ctrl must be set after pll power up */ | |
666 | snd_soc_write(codec, SGTL5000_CHIP_CLK_CTRL, clk_ctl); | |
9b34e6cc | 667 | } else { |
e06e4c2d OS |
668 | /* otherwise, clk_ctrl must be set before pll power down */ |
669 | snd_soc_write(codec, SGTL5000_CHIP_CLK_CTRL, clk_ctl); | |
670 | ||
9b34e6cc ZZ |
671 | /* power down pll */ |
672 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, | |
673 | SGTL5000_PLL_POWERUP | SGTL5000_VCOAMP_POWERUP, | |
674 | 0); | |
675 | } | |
676 | ||
9b34e6cc ZZ |
677 | return 0; |
678 | } | |
679 | ||
680 | /* | |
681 | * Set PCM DAI bit size and sample rate. | |
682 | * input: params_rate, params_fmt | |
683 | */ | |
684 | static int sgtl5000_pcm_hw_params(struct snd_pcm_substream *substream, | |
685 | struct snd_pcm_hw_params *params, | |
686 | struct snd_soc_dai *dai) | |
687 | { | |
e6968a17 | 688 | struct snd_soc_codec *codec = dai->codec; |
9b34e6cc ZZ |
689 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); |
690 | int channels = params_channels(params); | |
691 | int i2s_ctl = 0; | |
692 | int stereo; | |
693 | int ret; | |
694 | ||
695 | /* sysclk should already set */ | |
696 | if (!sgtl5000->sysclk) { | |
697 | dev_err(codec->dev, "%s: set sysclk first!\n", __func__); | |
698 | return -EFAULT; | |
699 | } | |
700 | ||
701 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
702 | stereo = SGTL5000_DAC_STEREO; | |
703 | else | |
704 | stereo = SGTL5000_ADC_STEREO; | |
705 | ||
706 | /* set mono to save power */ | |
707 | snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, stereo, | |
708 | channels == 1 ? 0 : stereo); | |
709 | ||
710 | /* set codec clock base on lrclk */ | |
711 | ret = sgtl5000_set_clock(codec, params_rate(params)); | |
712 | if (ret) | |
713 | return ret; | |
714 | ||
715 | /* set i2s data format */ | |
dacc2aef MB |
716 | switch (params_width(params)) { |
717 | case 16: | |
9b34e6cc ZZ |
718 | if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J) |
719 | return -EINVAL; | |
720 | i2s_ctl |= SGTL5000_I2S_DLEN_16 << SGTL5000_I2S_DLEN_SHIFT; | |
721 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_32FS << | |
722 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
723 | break; | |
dacc2aef | 724 | case 20: |
9b34e6cc ZZ |
725 | i2s_ctl |= SGTL5000_I2S_DLEN_20 << SGTL5000_I2S_DLEN_SHIFT; |
726 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
727 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
728 | break; | |
dacc2aef | 729 | case 24: |
9b34e6cc ZZ |
730 | i2s_ctl |= SGTL5000_I2S_DLEN_24 << SGTL5000_I2S_DLEN_SHIFT; |
731 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
732 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
733 | break; | |
dacc2aef | 734 | case 32: |
9b34e6cc ZZ |
735 | if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J) |
736 | return -EINVAL; | |
737 | i2s_ctl |= SGTL5000_I2S_DLEN_32 << SGTL5000_I2S_DLEN_SHIFT; | |
738 | i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS << | |
739 | SGTL5000_I2S_SCLKFREQ_SHIFT; | |
740 | break; | |
741 | default: | |
742 | return -EINVAL; | |
743 | } | |
744 | ||
33cb92cf AL |
745 | snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL, |
746 | SGTL5000_I2S_DLEN_MASK | SGTL5000_I2S_SCLKFREQ_MASK, | |
747 | i2s_ctl); | |
9b34e6cc ZZ |
748 | |
749 | return 0; | |
750 | } | |
751 | ||
9b34e6cc ZZ |
752 | /* |
753 | * set dac bias | |
754 | * common state changes: | |
755 | * startup: | |
756 | * off --> standby --> prepare --> on | |
757 | * standby --> prepare --> on | |
758 | * | |
759 | * stop: | |
760 | * on --> prepare --> standby | |
761 | */ | |
762 | static int sgtl5000_set_bias_level(struct snd_soc_codec *codec, | |
763 | enum snd_soc_bias_level level) | |
764 | { | |
765 | int ret; | |
766 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
767 | ||
768 | switch (level) { | |
769 | case SND_SOC_BIAS_ON: | |
770 | case SND_SOC_BIAS_PREPARE: | |
771 | break; | |
772 | case SND_SOC_BIAS_STANDBY: | |
8533eb24 | 773 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { |
9b34e6cc | 774 | ret = regulator_bulk_enable( |
940adb28 | 775 | sgtl5000->num_supplies, |
9b34e6cc ZZ |
776 | sgtl5000->supplies); |
777 | if (ret) | |
778 | return ret; | |
779 | udelay(10); | |
2bdc1bb2 MB |
780 | |
781 | regcache_cache_only(sgtl5000->regmap, false); | |
782 | ||
783 | ret = regcache_sync(sgtl5000->regmap); | |
784 | if (ret != 0) { | |
785 | dev_err(codec->dev, | |
786 | "Failed to restore cache: %d\n", ret); | |
787 | ||
788 | regcache_cache_only(sgtl5000->regmap, true); | |
940adb28 | 789 | regulator_bulk_disable(sgtl5000->num_supplies, |
2bdc1bb2 MB |
790 | sgtl5000->supplies); |
791 | ||
792 | return ret; | |
793 | } | |
9b34e6cc ZZ |
794 | } |
795 | ||
796 | break; | |
797 | case SND_SOC_BIAS_OFF: | |
2bdc1bb2 | 798 | regcache_cache_only(sgtl5000->regmap, true); |
940adb28 EN |
799 | regulator_bulk_disable(sgtl5000->num_supplies, |
800 | sgtl5000->supplies); | |
9b34e6cc ZZ |
801 | break; |
802 | } | |
803 | ||
9b34e6cc ZZ |
804 | return 0; |
805 | } | |
806 | ||
807 | #define SGTL5000_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ | |
808 | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
809 | SNDRV_PCM_FMTBIT_S24_LE |\ | |
810 | SNDRV_PCM_FMTBIT_S32_LE) | |
811 | ||
85e7652d | 812 | static const struct snd_soc_dai_ops sgtl5000_ops = { |
9b34e6cc ZZ |
813 | .hw_params = sgtl5000_pcm_hw_params, |
814 | .digital_mute = sgtl5000_digital_mute, | |
815 | .set_fmt = sgtl5000_set_dai_fmt, | |
816 | .set_sysclk = sgtl5000_set_dai_sysclk, | |
817 | }; | |
818 | ||
819 | static struct snd_soc_dai_driver sgtl5000_dai = { | |
820 | .name = "sgtl5000", | |
821 | .playback = { | |
822 | .stream_name = "Playback", | |
823 | .channels_min = 1, | |
824 | .channels_max = 2, | |
825 | /* | |
826 | * only support 8~48K + 96K, | |
827 | * TODO modify hw_param to support more | |
828 | */ | |
829 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_96000, | |
830 | .formats = SGTL5000_FORMATS, | |
831 | }, | |
832 | .capture = { | |
833 | .stream_name = "Capture", | |
834 | .channels_min = 1, | |
835 | .channels_max = 2, | |
836 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_96000, | |
837 | .formats = SGTL5000_FORMATS, | |
838 | }, | |
839 | .ops = &sgtl5000_ops, | |
840 | .symmetric_rates = 1, | |
841 | }; | |
842 | ||
e5d80e82 | 843 | static bool sgtl5000_volatile(struct device *dev, unsigned int reg) |
9b34e6cc ZZ |
844 | { |
845 | switch (reg) { | |
846 | case SGTL5000_CHIP_ID: | |
847 | case SGTL5000_CHIP_ADCDAC_CTRL: | |
848 | case SGTL5000_CHIP_ANA_STATUS: | |
e5d80e82 | 849 | return true; |
9b34e6cc ZZ |
850 | } |
851 | ||
e5d80e82 FE |
852 | return false; |
853 | } | |
854 | ||
855 | static bool sgtl5000_readable(struct device *dev, unsigned int reg) | |
856 | { | |
857 | switch (reg) { | |
858 | case SGTL5000_CHIP_ID: | |
859 | case SGTL5000_CHIP_DIG_POWER: | |
860 | case SGTL5000_CHIP_CLK_CTRL: | |
861 | case SGTL5000_CHIP_I2S_CTRL: | |
862 | case SGTL5000_CHIP_SSS_CTRL: | |
863 | case SGTL5000_CHIP_ADCDAC_CTRL: | |
864 | case SGTL5000_CHIP_DAC_VOL: | |
865 | case SGTL5000_CHIP_PAD_STRENGTH: | |
866 | case SGTL5000_CHIP_ANA_ADC_CTRL: | |
867 | case SGTL5000_CHIP_ANA_HP_CTRL: | |
868 | case SGTL5000_CHIP_ANA_CTRL: | |
869 | case SGTL5000_CHIP_LINREG_CTRL: | |
870 | case SGTL5000_CHIP_REF_CTRL: | |
871 | case SGTL5000_CHIP_MIC_CTRL: | |
872 | case SGTL5000_CHIP_LINE_OUT_CTRL: | |
873 | case SGTL5000_CHIP_LINE_OUT_VOL: | |
874 | case SGTL5000_CHIP_ANA_POWER: | |
875 | case SGTL5000_CHIP_PLL_CTRL: | |
876 | case SGTL5000_CHIP_CLK_TOP_CTRL: | |
877 | case SGTL5000_CHIP_ANA_STATUS: | |
878 | case SGTL5000_CHIP_SHORT_CTRL: | |
879 | case SGTL5000_CHIP_ANA_TEST2: | |
880 | case SGTL5000_DAP_CTRL: | |
881 | case SGTL5000_DAP_PEQ: | |
882 | case SGTL5000_DAP_BASS_ENHANCE: | |
883 | case SGTL5000_DAP_BASS_ENHANCE_CTRL: | |
884 | case SGTL5000_DAP_AUDIO_EQ: | |
885 | case SGTL5000_DAP_SURROUND: | |
886 | case SGTL5000_DAP_FLT_COEF_ACCESS: | |
887 | case SGTL5000_DAP_COEF_WR_B0_MSB: | |
888 | case SGTL5000_DAP_COEF_WR_B0_LSB: | |
889 | case SGTL5000_DAP_EQ_BASS_BAND0: | |
890 | case SGTL5000_DAP_EQ_BASS_BAND1: | |
891 | case SGTL5000_DAP_EQ_BASS_BAND2: | |
892 | case SGTL5000_DAP_EQ_BASS_BAND3: | |
893 | case SGTL5000_DAP_EQ_BASS_BAND4: | |
894 | case SGTL5000_DAP_MAIN_CHAN: | |
895 | case SGTL5000_DAP_MIX_CHAN: | |
896 | case SGTL5000_DAP_AVC_CTRL: | |
897 | case SGTL5000_DAP_AVC_THRESHOLD: | |
898 | case SGTL5000_DAP_AVC_ATTACK: | |
899 | case SGTL5000_DAP_AVC_DECAY: | |
900 | case SGTL5000_DAP_COEF_WR_B1_MSB: | |
901 | case SGTL5000_DAP_COEF_WR_B1_LSB: | |
902 | case SGTL5000_DAP_COEF_WR_B2_MSB: | |
903 | case SGTL5000_DAP_COEF_WR_B2_LSB: | |
904 | case SGTL5000_DAP_COEF_WR_A1_MSB: | |
905 | case SGTL5000_DAP_COEF_WR_A1_LSB: | |
906 | case SGTL5000_DAP_COEF_WR_A2_MSB: | |
907 | case SGTL5000_DAP_COEF_WR_A2_LSB: | |
908 | return true; | |
909 | ||
910 | default: | |
911 | return false; | |
912 | } | |
9b34e6cc ZZ |
913 | } |
914 | ||
1f39d939 AS |
915 | /* |
916 | * This precalculated table contains all (vag_val * 100 / lo_calcntrl) results | |
917 | * to select an appropriate lo_vol_* in SGTL5000_CHIP_LINE_OUT_VOL | |
918 | * The calculatation was done for all possible register values which | |
919 | * is the array index and the following formula: 10^((idx−15)/40) * 100 | |
920 | */ | |
921 | static const u8 vol_quot_table[] = { | |
922 | 42, 45, 47, 50, 53, 56, 60, 63, | |
923 | 67, 71, 75, 79, 84, 89, 94, 100, | |
924 | 106, 112, 119, 126, 133, 141, 150, 158, | |
925 | 168, 178, 188, 200, 211, 224, 237, 251 | |
926 | }; | |
927 | ||
9b34e6cc ZZ |
928 | /* |
929 | * sgtl5000 has 3 internal power supplies: | |
930 | * 1. VAG, normally set to vdda/2 | |
7f6d75d7 | 931 | * 2. charge pump, set to different value |
9b34e6cc ZZ |
932 | * according to voltage of vdda and vddio |
933 | * 3. line out VAG, normally set to vddio/2 | |
934 | * | |
935 | * and should be set according to: | |
936 | * 1. vddd provided by external or not | |
937 | * 2. vdda and vddio voltage value. > 3.1v or not | |
9b34e6cc ZZ |
938 | */ |
939 | static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) | |
940 | { | |
941 | int vddd; | |
942 | int vdda; | |
943 | int vddio; | |
944 | u16 ana_pwr; | |
945 | u16 lreg_ctrl; | |
946 | int vag; | |
d2b7c2aa | 947 | int lo_vag; |
1f39d939 AS |
948 | int vol_quot; |
949 | int lo_vol; | |
950 | size_t i; | |
9b34e6cc ZZ |
951 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); |
952 | ||
953 | vdda = regulator_get_voltage(sgtl5000->supplies[VDDA].consumer); | |
954 | vddio = regulator_get_voltage(sgtl5000->supplies[VDDIO].consumer); | |
940adb28 EN |
955 | vddd = (sgtl5000->num_supplies > VDDD) |
956 | ? regulator_get_voltage(sgtl5000->supplies[VDDD].consumer) | |
957 | : LDO_VOLTAGE; | |
9b34e6cc ZZ |
958 | |
959 | vdda = vdda / 1000; | |
960 | vddio = vddio / 1000; | |
961 | vddd = vddd / 1000; | |
962 | ||
963 | if (vdda <= 0 || vddio <= 0 || vddd < 0) { | |
964 | dev_err(codec->dev, "regulator voltage not set correctly\n"); | |
965 | ||
966 | return -EINVAL; | |
967 | } | |
968 | ||
969 | /* according to datasheet, maximum voltage of supplies */ | |
970 | if (vdda > 3600 || vddio > 3600 || vddd > 1980) { | |
971 | dev_err(codec->dev, | |
cf1ee98d | 972 | "exceed max voltage vdda %dmV vddio %dmV vddd %dmV\n", |
9b34e6cc ZZ |
973 | vdda, vddio, vddd); |
974 | ||
975 | return -EINVAL; | |
976 | } | |
977 | ||
978 | /* reset value */ | |
979 | ana_pwr = snd_soc_read(codec, SGTL5000_CHIP_ANA_POWER); | |
980 | ana_pwr |= SGTL5000_DAC_STEREO | | |
981 | SGTL5000_ADC_STEREO | | |
982 | SGTL5000_REFTOP_POWERUP; | |
983 | lreg_ctrl = snd_soc_read(codec, SGTL5000_CHIP_LINREG_CTRL); | |
984 | ||
985 | if (vddio < 3100 && vdda < 3100) { | |
986 | /* enable internal oscillator used for charge pump */ | |
987 | snd_soc_update_bits(codec, SGTL5000_CHIP_CLK_TOP_CTRL, | |
988 | SGTL5000_INT_OSC_EN, | |
989 | SGTL5000_INT_OSC_EN); | |
990 | /* Enable VDDC charge pump */ | |
991 | ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP; | |
992 | } else if (vddio >= 3100 && vdda >= 3100) { | |
c7d910b8 | 993 | ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP; |
9b34e6cc ZZ |
994 | /* VDDC use VDDIO rail */ |
995 | lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD; | |
996 | lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO << | |
997 | SGTL5000_VDDC_MAN_ASSN_SHIFT; | |
998 | } | |
999 | ||
1000 | snd_soc_write(codec, SGTL5000_CHIP_LINREG_CTRL, lreg_ctrl); | |
1001 | ||
1002 | snd_soc_write(codec, SGTL5000_CHIP_ANA_POWER, ana_pwr); | |
1003 | ||
9b34e6cc ZZ |
1004 | /* |
1005 | * set ADC/DAC VAG to vdda / 2, | |
1006 | * should stay in range (0.8v, 1.575v) | |
1007 | */ | |
1008 | vag = vdda / 2; | |
1009 | if (vag <= SGTL5000_ANA_GND_BASE) | |
1010 | vag = 0; | |
1011 | else if (vag >= SGTL5000_ANA_GND_BASE + SGTL5000_ANA_GND_STP * | |
1012 | (SGTL5000_ANA_GND_MASK >> SGTL5000_ANA_GND_SHIFT)) | |
1013 | vag = SGTL5000_ANA_GND_MASK >> SGTL5000_ANA_GND_SHIFT; | |
1014 | else | |
1015 | vag = (vag - SGTL5000_ANA_GND_BASE) / SGTL5000_ANA_GND_STP; | |
1016 | ||
1017 | snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL, | |
33cb92cf | 1018 | SGTL5000_ANA_GND_MASK, vag << SGTL5000_ANA_GND_SHIFT); |
9b34e6cc ZZ |
1019 | |
1020 | /* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */ | |
d2b7c2aa AS |
1021 | lo_vag = vddio / 2; |
1022 | if (lo_vag <= SGTL5000_LINE_OUT_GND_BASE) | |
1023 | lo_vag = 0; | |
1024 | else if (lo_vag >= SGTL5000_LINE_OUT_GND_BASE + | |
9b34e6cc | 1025 | SGTL5000_LINE_OUT_GND_STP * SGTL5000_LINE_OUT_GND_MAX) |
d2b7c2aa | 1026 | lo_vag = SGTL5000_LINE_OUT_GND_MAX; |
9b34e6cc | 1027 | else |
d2b7c2aa | 1028 | lo_vag = (lo_vag - SGTL5000_LINE_OUT_GND_BASE) / |
9b34e6cc ZZ |
1029 | SGTL5000_LINE_OUT_GND_STP; |
1030 | ||
1031 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_CTRL, | |
33cb92cf AL |
1032 | SGTL5000_LINE_OUT_CURRENT_MASK | |
1033 | SGTL5000_LINE_OUT_GND_MASK, | |
d2b7c2aa | 1034 | lo_vag << SGTL5000_LINE_OUT_GND_SHIFT | |
9b34e6cc ZZ |
1035 | SGTL5000_LINE_OUT_CURRENT_360u << |
1036 | SGTL5000_LINE_OUT_CURRENT_SHIFT); | |
1037 | ||
1f39d939 AS |
1038 | /* |
1039 | * Set lineout output level in range (0..31) | |
1040 | * the same value is used for right and left channel | |
1041 | * | |
1042 | * Searching for a suitable index solving this formula: | |
1043 | * idx = 40 * log10(vag_val / lo_cagcntrl) + 15 | |
1044 | */ | |
1045 | vol_quot = (vag * 100) / lo_vag; | |
1046 | lo_vol = 0; | |
1047 | for (i = 0; i < ARRAY_SIZE(vol_quot_table); i++) { | |
1048 | if (vol_quot >= vol_quot_table[i]) | |
1049 | lo_vol = i; | |
1050 | else | |
1051 | break; | |
1052 | } | |
1053 | ||
1054 | snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_VOL, | |
1055 | SGTL5000_LINE_OUT_VOL_RIGHT_MASK | | |
1056 | SGTL5000_LINE_OUT_VOL_LEFT_MASK, | |
1057 | lo_vol << SGTL5000_LINE_OUT_VOL_RIGHT_SHIFT | | |
1058 | lo_vol << SGTL5000_LINE_OUT_VOL_LEFT_SHIFT); | |
1059 | ||
9b34e6cc ZZ |
1060 | return 0; |
1061 | } | |
1062 | ||
940adb28 | 1063 | static int sgtl5000_enable_regulators(struct i2c_client *client) |
9b34e6cc | 1064 | { |
9b34e6cc | 1065 | int ret; |
9b34e6cc ZZ |
1066 | int i; |
1067 | int external_vddd = 0; | |
11db0da8 | 1068 | struct regulator *vddd; |
940adb28 | 1069 | struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client); |
9b34e6cc ZZ |
1070 | |
1071 | for (i = 0; i < ARRAY_SIZE(sgtl5000->supplies); i++) | |
1072 | sgtl5000->supplies[i].supply = supply_names[i]; | |
1073 | ||
940adb28 EN |
1074 | vddd = regulator_get_optional(&client->dev, "VDDD"); |
1075 | if (IS_ERR(vddd)) { | |
1076 | /* See if it's just not registered yet */ | |
1077 | if (PTR_ERR(vddd) == -EPROBE_DEFER) | |
1078 | return -EPROBE_DEFER; | |
1079 | } else { | |
1080 | external_vddd = 1; | |
1081 | regulator_put(vddd); | |
9b34e6cc ZZ |
1082 | } |
1083 | ||
940adb28 EN |
1084 | sgtl5000->num_supplies = ARRAY_SIZE(sgtl5000->supplies) |
1085 | - 1 + external_vddd; | |
1086 | ret = regulator_bulk_get(&client->dev, sgtl5000->num_supplies, | |
11db0da8 SG |
1087 | sgtl5000->supplies); |
1088 | if (ret) | |
940adb28 | 1089 | return ret; |
9b34e6cc | 1090 | |
940adb28 EN |
1091 | ret = regulator_bulk_enable(sgtl5000->num_supplies, |
1092 | sgtl5000->supplies); | |
1093 | if (!ret) | |
1094 | usleep_range(10, 20); | |
1095 | else | |
1096 | regulator_bulk_free(sgtl5000->num_supplies, | |
1097 | sgtl5000->supplies); | |
9b34e6cc | 1098 | |
9b34e6cc | 1099 | return ret; |
9b34e6cc ZZ |
1100 | } |
1101 | ||
1102 | static int sgtl5000_probe(struct snd_soc_codec *codec) | |
1103 | { | |
1104 | int ret; | |
1105 | struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); | |
1106 | ||
9b34e6cc ZZ |
1107 | /* power up sgtl5000 */ |
1108 | ret = sgtl5000_set_power_regs(codec); | |
1109 | if (ret) | |
1110 | goto err; | |
1111 | ||
1112 | /* enable small pop, introduce 400ms delay in turning off */ | |
1113 | snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL, | |
c251ea7b | 1114 | SGTL5000_SMALL_POP, 1); |
9b34e6cc ZZ |
1115 | |
1116 | /* disable short cut detector */ | |
1117 | snd_soc_write(codec, SGTL5000_CHIP_SHORT_CTRL, 0); | |
1118 | ||
1119 | /* | |
1120 | * set i2s as default input of sound switch | |
1121 | * TODO: add sound switch to control and dapm widge. | |
1122 | */ | |
1123 | snd_soc_write(codec, SGTL5000_CHIP_SSS_CTRL, | |
1124 | SGTL5000_DAC_SEL_I2S_IN << SGTL5000_DAC_SEL_SHIFT); | |
1125 | snd_soc_write(codec, SGTL5000_CHIP_DIG_POWER, | |
1126 | SGTL5000_ADC_EN | SGTL5000_DAC_EN); | |
1127 | ||
1128 | /* enable dac volume ramp by default */ | |
1129 | snd_soc_write(codec, SGTL5000_CHIP_ADCDAC_CTRL, | |
1130 | SGTL5000_DAC_VOL_RAMP_EN | | |
1131 | SGTL5000_DAC_MUTE_RIGHT | | |
1132 | SGTL5000_DAC_MUTE_LEFT); | |
1133 | ||
1134 | snd_soc_write(codec, SGTL5000_CHIP_PAD_STRENGTH, 0x015f); | |
1135 | ||
1136 | snd_soc_write(codec, SGTL5000_CHIP_ANA_CTRL, | |
1137 | SGTL5000_HP_ZCD_EN | | |
1138 | SGTL5000_ADC_ZCD_EN); | |
1139 | ||
bd0593f5 JMH |
1140 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
1141 | SGTL5000_BIAS_R_MASK, | |
1142 | sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT); | |
9b34e6cc | 1143 | |
87357797 | 1144 | snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, |
e256da84 GR |
1145 | SGTL5000_BIAS_VOLT_MASK, |
1146 | sgtl5000->micbias_voltage << SGTL5000_BIAS_VOLT_SHIFT); | |
9b34e6cc ZZ |
1147 | /* |
1148 | * disable DAP | |
1149 | * TODO: | |
1150 | * Enable DAP in kcontrol and dapm. | |
1151 | */ | |
1152 | snd_soc_write(codec, SGTL5000_DAP_CTRL, 0); | |
1153 | ||
9b34e6cc ZZ |
1154 | return 0; |
1155 | ||
1156 | err: | |
9b34e6cc ZZ |
1157 | return ret; |
1158 | } | |
1159 | ||
1160 | static int sgtl5000_remove(struct snd_soc_codec *codec) | |
1161 | { | |
9b34e6cc ZZ |
1162 | return 0; |
1163 | } | |
1164 | ||
61a142b7 | 1165 | static struct snd_soc_codec_driver sgtl5000_driver = { |
9b34e6cc ZZ |
1166 | .probe = sgtl5000_probe, |
1167 | .remove = sgtl5000_remove, | |
9b34e6cc | 1168 | .set_bias_level = sgtl5000_set_bias_level, |
e649057a | 1169 | .suspend_bias_off = true, |
89989637 FE |
1170 | .controls = sgtl5000_snd_controls, |
1171 | .num_controls = ARRAY_SIZE(sgtl5000_snd_controls), | |
5e0ac527 MB |
1172 | .dapm_widgets = sgtl5000_dapm_widgets, |
1173 | .num_dapm_widgets = ARRAY_SIZE(sgtl5000_dapm_widgets), | |
1174 | .dapm_routes = sgtl5000_dapm_routes, | |
1175 | .num_dapm_routes = ARRAY_SIZE(sgtl5000_dapm_routes), | |
9b34e6cc ZZ |
1176 | }; |
1177 | ||
e5d80e82 FE |
1178 | static const struct regmap_config sgtl5000_regmap = { |
1179 | .reg_bits = 16, | |
1180 | .val_bits = 16, | |
cb23e852 | 1181 | .reg_stride = 2, |
e5d80e82 FE |
1182 | |
1183 | .max_register = SGTL5000_MAX_REG_OFFSET, | |
1184 | .volatile_reg = sgtl5000_volatile, | |
1185 | .readable_reg = sgtl5000_readable, | |
1186 | ||
1187 | .cache_type = REGCACHE_RBTREE, | |
1188 | .reg_defaults = sgtl5000_reg_defaults, | |
1189 | .num_reg_defaults = ARRAY_SIZE(sgtl5000_reg_defaults), | |
1190 | }; | |
1191 | ||
af8ee112 FE |
1192 | /* |
1193 | * Write all the default values from sgtl5000_reg_defaults[] array into the | |
1194 | * sgtl5000 registers, to make sure we always start with the sane registers | |
1195 | * values as stated in the datasheet. | |
1196 | * | |
1197 | * Since sgtl5000 does not have a reset line, nor a reset command in software, | |
1198 | * we follow this approach to guarantee we always start from the default values | |
1199 | * and avoid problems like, not being able to probe after an audio playback | |
1200 | * followed by a system reset or a 'reboot' command in Linux | |
1201 | */ | |
f219b169 | 1202 | static void sgtl5000_fill_defaults(struct i2c_client *client) |
af8ee112 | 1203 | { |
f219b169 | 1204 | struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client); |
af8ee112 FE |
1205 | int i, ret, val, index; |
1206 | ||
1207 | for (i = 0; i < ARRAY_SIZE(sgtl5000_reg_defaults); i++) { | |
1208 | val = sgtl5000_reg_defaults[i].def; | |
1209 | index = sgtl5000_reg_defaults[i].reg; | |
1210 | ret = regmap_write(sgtl5000->regmap, index, val); | |
1211 | if (ret) | |
f219b169 EN |
1212 | dev_err(&client->dev, |
1213 | "%s: error %d setting reg 0x%02x to 0x%04x\n", | |
1214 | __func__, ret, index, val); | |
af8ee112 | 1215 | } |
af8ee112 FE |
1216 | } |
1217 | ||
7a79e94e BP |
1218 | static int sgtl5000_i2c_probe(struct i2c_client *client, |
1219 | const struct i2c_device_id *id) | |
9b34e6cc ZZ |
1220 | { |
1221 | struct sgtl5000_priv *sgtl5000; | |
b871f1ad | 1222 | int ret, reg, rev; |
bd0593f5 JMH |
1223 | struct device_node *np = client->dev.of_node; |
1224 | u32 value; | |
3d632cc8 | 1225 | u16 ana_pwr; |
9b34e6cc | 1226 | |
3f7256fe | 1227 | sgtl5000 = devm_kzalloc(&client->dev, sizeof(*sgtl5000), GFP_KERNEL); |
9b34e6cc ZZ |
1228 | if (!sgtl5000) |
1229 | return -ENOMEM; | |
1230 | ||
940adb28 EN |
1231 | i2c_set_clientdata(client, sgtl5000); |
1232 | ||
1233 | ret = sgtl5000_enable_regulators(client); | |
1234 | if (ret) | |
1235 | return ret; | |
1236 | ||
e5d80e82 FE |
1237 | sgtl5000->regmap = devm_regmap_init_i2c(client, &sgtl5000_regmap); |
1238 | if (IS_ERR(sgtl5000->regmap)) { | |
1239 | ret = PTR_ERR(sgtl5000->regmap); | |
1240 | dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret); | |
940adb28 | 1241 | goto disable_regs; |
e5d80e82 FE |
1242 | } |
1243 | ||
9e13f345 FE |
1244 | sgtl5000->mclk = devm_clk_get(&client->dev, NULL); |
1245 | if (IS_ERR(sgtl5000->mclk)) { | |
1246 | ret = PTR_ERR(sgtl5000->mclk); | |
1247 | dev_err(&client->dev, "Failed to get mclock: %d\n", ret); | |
46a5905e SG |
1248 | /* Defer the probe to see if the clk will be provided later */ |
1249 | if (ret == -ENOENT) | |
940adb28 EN |
1250 | ret = -EPROBE_DEFER; |
1251 | goto disable_regs; | |
9e13f345 FE |
1252 | } |
1253 | ||
1254 | ret = clk_prepare_enable(sgtl5000->mclk); | |
940adb28 EN |
1255 | if (ret) { |
1256 | dev_err(&client->dev, "Error enabling clock %d\n", ret); | |
1257 | goto disable_regs; | |
1258 | } | |
9e13f345 | 1259 | |
58cc9c9a EN |
1260 | /* Need 8 clocks before I2C accesses */ |
1261 | udelay(1); | |
1262 | ||
b871f1ad FE |
1263 | /* read chip information */ |
1264 | ret = regmap_read(sgtl5000->regmap, SGTL5000_CHIP_ID, ®); | |
940adb28 EN |
1265 | if (ret) { |
1266 | dev_err(&client->dev, "Error reading chip id %d\n", ret); | |
9e13f345 | 1267 | goto disable_clk; |
940adb28 | 1268 | } |
b871f1ad FE |
1269 | |
1270 | if (((reg & SGTL5000_PARTID_MASK) >> SGTL5000_PARTID_SHIFT) != | |
1271 | SGTL5000_PARTID_PART_ID) { | |
1272 | dev_err(&client->dev, | |
1273 | "Device with ID register %x is not a sgtl5000\n", reg); | |
9e13f345 FE |
1274 | ret = -ENODEV; |
1275 | goto disable_clk; | |
b871f1ad FE |
1276 | } |
1277 | ||
1278 | rev = (reg & SGTL5000_REVID_MASK) >> SGTL5000_REVID_SHIFT; | |
1279 | dev_info(&client->dev, "sgtl5000 revision 0x%x\n", rev); | |
252e91ff | 1280 | sgtl5000->revision = rev; |
b871f1ad | 1281 | |
940adb28 | 1282 | /* Follow section 2.2.1.1 of AN3663 */ |
3d632cc8 | 1283 | ana_pwr = SGTL5000_ANA_POWER_DEFAULT; |
940adb28 EN |
1284 | if (sgtl5000->num_supplies <= VDDD) { |
1285 | /* internal VDDD at 1.2V */ | |
3d632cc8 EN |
1286 | ret = regmap_update_bits(sgtl5000->regmap, |
1287 | SGTL5000_CHIP_LINREG_CTRL, | |
1288 | SGTL5000_LINREG_VDDD_MASK, | |
1289 | LINREG_VDDD); | |
1290 | if (ret) | |
1291 | dev_err(&client->dev, | |
1292 | "Error %d setting LINREG_VDDD\n", ret); | |
1293 | ||
1294 | ana_pwr |= SGTL5000_LINEREG_D_POWERUP; | |
1295 | dev_info(&client->dev, | |
1296 | "Using internal LDO instead of VDDD: check ER1\n"); | |
940adb28 EN |
1297 | } else { |
1298 | /* using external LDO for VDDD | |
1299 | * Clear startup powerup and simple powerup | |
1300 | * bits to save power | |
1301 | */ | |
3d632cc8 EN |
1302 | ana_pwr &= ~(SGTL5000_STARTUP_POWERUP |
1303 | | SGTL5000_LINREG_SIMPLE_POWERUP); | |
940adb28 EN |
1304 | dev_dbg(&client->dev, "Using external VDDD\n"); |
1305 | } | |
3d632cc8 EN |
1306 | ret = regmap_write(sgtl5000->regmap, SGTL5000_CHIP_ANA_POWER, ana_pwr); |
1307 | if (ret) | |
1308 | dev_err(&client->dev, | |
1309 | "Error %d setting CHIP_ANA_POWER to %04x\n", | |
1310 | ret, ana_pwr); | |
940adb28 | 1311 | |
bd0593f5 JMH |
1312 | if (np) { |
1313 | if (!of_property_read_u32(np, | |
1314 | "micbias-resistor-k-ohms", &value)) { | |
1315 | switch (value) { | |
1316 | case SGTL5000_MICBIAS_OFF: | |
1317 | sgtl5000->micbias_resistor = 0; | |
1318 | break; | |
1319 | case SGTL5000_MICBIAS_2K: | |
1320 | sgtl5000->micbias_resistor = 1; | |
1321 | break; | |
1322 | case SGTL5000_MICBIAS_4K: | |
1323 | sgtl5000->micbias_resistor = 2; | |
1324 | break; | |
1325 | case SGTL5000_MICBIAS_8K: | |
1326 | sgtl5000->micbias_resistor = 3; | |
1327 | break; | |
1328 | default: | |
1329 | sgtl5000->micbias_resistor = 2; | |
1330 | dev_err(&client->dev, | |
1331 | "Unsuitable MicBias resistor\n"); | |
1332 | } | |
1333 | } else { | |
1334 | /* default is 4Kohms */ | |
1335 | sgtl5000->micbias_resistor = 2; | |
1336 | } | |
87357797 JMH |
1337 | if (!of_property_read_u32(np, |
1338 | "micbias-voltage-m-volts", &value)) { | |
1339 | /* 1250mV => 0 */ | |
1340 | /* steps of 250mV */ | |
1341 | if ((value >= 1250) && (value <= 3000)) | |
1342 | sgtl5000->micbias_voltage = (value / 250) - 5; | |
1343 | else { | |
1344 | sgtl5000->micbias_voltage = 0; | |
bd0593f5 | 1345 | dev_err(&client->dev, |
fb97d75b | 1346 | "Unsuitable MicBias voltage\n"); |
bd0593f5 JMH |
1347 | } |
1348 | } else { | |
87357797 | 1349 | sgtl5000->micbias_voltage = 0; |
bd0593f5 JMH |
1350 | } |
1351 | } | |
1352 | ||
af8ee112 | 1353 | /* Ensure sgtl5000 will start with sane register values */ |
f219b169 | 1354 | sgtl5000_fill_defaults(client); |
af8ee112 | 1355 | |
9b34e6cc ZZ |
1356 | ret = snd_soc_register_codec(&client->dev, |
1357 | &sgtl5000_driver, &sgtl5000_dai, 1); | |
9e13f345 FE |
1358 | if (ret) |
1359 | goto disable_clk; | |
1360 | ||
1361 | return 0; | |
1362 | ||
1363 | disable_clk: | |
1364 | clk_disable_unprepare(sgtl5000->mclk); | |
940adb28 EN |
1365 | |
1366 | disable_regs: | |
1367 | regulator_bulk_disable(sgtl5000->num_supplies, sgtl5000->supplies); | |
1368 | regulator_bulk_free(sgtl5000->num_supplies, sgtl5000->supplies); | |
1369 | ||
512fa7c4 | 1370 | return ret; |
9b34e6cc ZZ |
1371 | } |
1372 | ||
7a79e94e | 1373 | static int sgtl5000_i2c_remove(struct i2c_client *client) |
9b34e6cc | 1374 | { |
7c647af4 | 1375 | struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client); |
9b34e6cc | 1376 | |
9e13f345 FE |
1377 | snd_soc_unregister_codec(&client->dev); |
1378 | clk_disable_unprepare(sgtl5000->mclk); | |
940adb28 EN |
1379 | regulator_bulk_disable(sgtl5000->num_supplies, sgtl5000->supplies); |
1380 | regulator_bulk_free(sgtl5000->num_supplies, sgtl5000->supplies); | |
1381 | ||
9b34e6cc ZZ |
1382 | return 0; |
1383 | } | |
1384 | ||
1385 | static const struct i2c_device_id sgtl5000_id[] = { | |
1386 | {"sgtl5000", 0}, | |
1387 | {}, | |
1388 | }; | |
1389 | ||
1390 | MODULE_DEVICE_TABLE(i2c, sgtl5000_id); | |
1391 | ||
58e49424 SG |
1392 | static const struct of_device_id sgtl5000_dt_ids[] = { |
1393 | { .compatible = "fsl,sgtl5000", }, | |
1394 | { /* sentinel */ } | |
1395 | }; | |
4c54c6de | 1396 | MODULE_DEVICE_TABLE(of, sgtl5000_dt_ids); |
58e49424 | 1397 | |
9b34e6cc ZZ |
1398 | static struct i2c_driver sgtl5000_i2c_driver = { |
1399 | .driver = { | |
1400 | .name = "sgtl5000", | |
58e49424 | 1401 | .of_match_table = sgtl5000_dt_ids, |
9b34e6cc ZZ |
1402 | }, |
1403 | .probe = sgtl5000_i2c_probe, | |
7a79e94e | 1404 | .remove = sgtl5000_i2c_remove, |
9b34e6cc ZZ |
1405 | .id_table = sgtl5000_id, |
1406 | }; | |
1407 | ||
67d45090 | 1408 | module_i2c_driver(sgtl5000_i2c_driver); |
9b34e6cc ZZ |
1409 | |
1410 | MODULE_DESCRIPTION("Freescale SGTL5000 ALSA SoC Codec Driver"); | |
f7cb8a4b | 1411 | MODULE_AUTHOR("Zeng Zhaoming <zengzm.kernel@gmail.com>"); |
9b34e6cc | 1412 | MODULE_LICENSE("GPL"); |