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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c046fd4d DP |
2 | /* |
3 | * wm8770.c -- WM8770 ALSA SoC Audio driver | |
4 | * | |
5 | * Copyright 2010 Wolfson Microelectronics plc | |
6 | * | |
7 | * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | |
c046fd4d DP |
8 | */ |
9 | ||
10 | #include <linux/module.h> | |
11 | #include <linux/moduleparam.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/delay.h> | |
13c7d08f | 14 | #include <linux/of_device.h> |
c046fd4d | 15 | #include <linux/pm.h> |
c046fd4d | 16 | #include <linux/spi/spi.h> |
dc43b046 | 17 | #include <linux/regmap.h> |
c046fd4d DP |
18 | #include <linux/regulator/consumer.h> |
19 | #include <linux/slab.h> | |
20 | #include <sound/core.h> | |
21 | #include <sound/pcm.h> | |
22 | #include <sound/pcm_params.h> | |
23 | #include <sound/soc.h> | |
c046fd4d DP |
24 | #include <sound/initval.h> |
25 | #include <sound/tlv.h> | |
26 | ||
27 | #include "wm8770.h" | |
28 | ||
29 | #define WM8770_NUM_SUPPLIES 3 | |
30 | static const char *wm8770_supply_names[WM8770_NUM_SUPPLIES] = { | |
31 | "AVDD1", | |
32 | "AVDD2", | |
33 | "DVDD" | |
34 | }; | |
35 | ||
dc43b046 MB |
36 | static const struct reg_default wm8770_reg_defaults[] = { |
37 | { 0, 0x7f }, | |
38 | { 1, 0x7f }, | |
39 | { 2, 0x7f }, | |
40 | { 3, 0x7f }, | |
41 | { 4, 0x7f }, | |
42 | { 5, 0x7f }, | |
43 | { 6, 0x7f }, | |
44 | { 7, 0x7f }, | |
45 | { 8, 0x7f }, | |
46 | { 9, 0xff }, | |
47 | { 10, 0xff }, | |
48 | { 11, 0xff }, | |
49 | { 12, 0xff }, | |
50 | { 13, 0xff }, | |
51 | { 14, 0xff }, | |
52 | { 15, 0xff }, | |
53 | { 16, 0xff }, | |
54 | { 17, 0xff }, | |
55 | { 18, 0 }, | |
56 | { 19, 0x90 }, | |
57 | { 20, 0 }, | |
58 | { 21, 0 }, | |
59 | { 22, 0x22 }, | |
60 | { 23, 0x22 }, | |
61 | { 24, 0x3e }, | |
62 | { 25, 0xc }, | |
63 | { 26, 0xc }, | |
64 | { 27, 0x100 }, | |
65 | { 28, 0x189 }, | |
66 | { 29, 0x189 }, | |
67 | { 30, 0x8770 }, | |
c046fd4d DP |
68 | }; |
69 | ||
dc43b046 MB |
70 | static bool wm8770_volatile_reg(struct device *dev, unsigned int reg) |
71 | { | |
72 | switch (reg) { | |
73 | case WM8770_RESET: | |
74 | return true; | |
75 | default: | |
76 | return false; | |
77 | } | |
78 | } | |
79 | ||
c046fd4d | 80 | struct wm8770_priv { |
dc43b046 | 81 | struct regmap *regmap; |
c046fd4d DP |
82 | struct regulator_bulk_data supplies[WM8770_NUM_SUPPLIES]; |
83 | struct notifier_block disable_nb[WM8770_NUM_SUPPLIES]; | |
502cb3a2 | 84 | struct snd_soc_component *component; |
c046fd4d DP |
85 | int sysclk; |
86 | }; | |
87 | ||
88 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
89 | struct snd_kcontrol *kcontrol, int event); | |
90 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
91 | struct snd_kcontrol *kcontrol, int event); | |
92 | ||
93 | /* | |
94 | * We can't use the same notifier block for more than one supply and | |
95 | * there's no way I can see to get from a callback to the caller | |
96 | * except container_of(). | |
97 | */ | |
98 | #define WM8770_REGULATOR_EVENT(n) \ | |
99 | static int wm8770_regulator_event_##n(struct notifier_block *nb, \ | |
100 | unsigned long event, void *data) \ | |
101 | { \ | |
102 | struct wm8770_priv *wm8770 = container_of(nb, struct wm8770_priv, \ | |
103 | disable_nb[n]); \ | |
104 | if (event & REGULATOR_EVENT_DISABLE) { \ | |
dc43b046 | 105 | regcache_mark_dirty(wm8770->regmap); \ |
c046fd4d DP |
106 | } \ |
107 | return 0; \ | |
108 | } | |
109 | ||
110 | WM8770_REGULATOR_EVENT(0) | |
111 | WM8770_REGULATOR_EVENT(1) | |
112 | WM8770_REGULATOR_EVENT(2) | |
113 | ||
114 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 100, 0); | |
115 | static const DECLARE_TLV_DB_SCALE(dac_dig_tlv, -12750, 50, 1); | |
116 | static const DECLARE_TLV_DB_SCALE(dac_alg_tlv, -12700, 100, 1); | |
117 | ||
118 | static const char *dac_phase_text[][2] = { | |
119 | { "DAC1 Normal", "DAC1 Inverted" }, | |
120 | { "DAC2 Normal", "DAC2 Inverted" }, | |
121 | { "DAC3 Normal", "DAC3 Inverted" }, | |
122 | { "DAC4 Normal", "DAC4 Inverted" }, | |
123 | }; | |
124 | ||
125 | static const struct soc_enum dac_phase[] = { | |
126 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 0, 1, 2, dac_phase_text[0]), | |
127 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 2, 3, 2, dac_phase_text[1]), | |
128 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 4, 5, 2, dac_phase_text[2]), | |
129 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 6, 7, 2, dac_phase_text[3]), | |
130 | }; | |
131 | ||
132 | static const struct snd_kcontrol_new wm8770_snd_controls[] = { | |
133 | /* global DAC playback controls */ | |
134 | SOC_SINGLE_TLV("DAC Playback Volume", WM8770_MSDIGVOL, 0, 255, 0, | |
135 | dac_dig_tlv), | |
136 | SOC_SINGLE("DAC Playback Switch", WM8770_DACMUTE, 4, 1, 1), | |
137 | SOC_SINGLE("DAC Playback ZC Switch", WM8770_DACCTRL1, 0, 1, 0), | |
138 | ||
139 | /* global VOUT playback controls */ | |
140 | SOC_SINGLE_TLV("VOUT Playback Volume", WM8770_MSALGVOL, 0, 127, 0, | |
141 | dac_alg_tlv), | |
142 | SOC_SINGLE("VOUT Playback ZC Switch", WM8770_MSALGVOL, 7, 1, 0), | |
143 | ||
144 | /* VOUT1/2/3/4 specific controls */ | |
145 | SOC_DOUBLE_R_TLV("VOUT1 Playback Volume", WM8770_VOUT1LVOL, | |
146 | WM8770_VOUT1RVOL, 0, 127, 0, dac_alg_tlv), | |
147 | SOC_DOUBLE_R("VOUT1 Playback ZC Switch", WM8770_VOUT1LVOL, | |
148 | WM8770_VOUT1RVOL, 7, 1, 0), | |
149 | SOC_DOUBLE_R_TLV("VOUT2 Playback Volume", WM8770_VOUT2LVOL, | |
150 | WM8770_VOUT2RVOL, 0, 127, 0, dac_alg_tlv), | |
151 | SOC_DOUBLE_R("VOUT2 Playback ZC Switch", WM8770_VOUT2LVOL, | |
152 | WM8770_VOUT2RVOL, 7, 1, 0), | |
153 | SOC_DOUBLE_R_TLV("VOUT3 Playback Volume", WM8770_VOUT3LVOL, | |
154 | WM8770_VOUT3RVOL, 0, 127, 0, dac_alg_tlv), | |
155 | SOC_DOUBLE_R("VOUT3 Playback ZC Switch", WM8770_VOUT3LVOL, | |
156 | WM8770_VOUT3RVOL, 7, 1, 0), | |
157 | SOC_DOUBLE_R_TLV("VOUT4 Playback Volume", WM8770_VOUT4LVOL, | |
158 | WM8770_VOUT4RVOL, 0, 127, 0, dac_alg_tlv), | |
159 | SOC_DOUBLE_R("VOUT4 Playback ZC Switch", WM8770_VOUT4LVOL, | |
160 | WM8770_VOUT4RVOL, 7, 1, 0), | |
161 | ||
162 | /* DAC1/2/3/4 specific controls */ | |
163 | SOC_DOUBLE_R_TLV("DAC1 Playback Volume", WM8770_DAC1LVOL, | |
164 | WM8770_DAC1RVOL, 0, 255, 0, dac_dig_tlv), | |
165 | SOC_SINGLE("DAC1 Deemphasis Switch", WM8770_DACCTRL2, 0, 1, 0), | |
166 | SOC_ENUM("DAC1 Phase", dac_phase[0]), | |
167 | SOC_DOUBLE_R_TLV("DAC2 Playback Volume", WM8770_DAC2LVOL, | |
168 | WM8770_DAC2RVOL, 0, 255, 0, dac_dig_tlv), | |
169 | SOC_SINGLE("DAC2 Deemphasis Switch", WM8770_DACCTRL2, 1, 1, 0), | |
170 | SOC_ENUM("DAC2 Phase", dac_phase[1]), | |
171 | SOC_DOUBLE_R_TLV("DAC3 Playback Volume", WM8770_DAC3LVOL, | |
172 | WM8770_DAC3RVOL, 0, 255, 0, dac_dig_tlv), | |
173 | SOC_SINGLE("DAC3 Deemphasis Switch", WM8770_DACCTRL2, 2, 1, 0), | |
174 | SOC_ENUM("DAC3 Phase", dac_phase[2]), | |
175 | SOC_DOUBLE_R_TLV("DAC4 Playback Volume", WM8770_DAC4LVOL, | |
176 | WM8770_DAC4RVOL, 0, 255, 0, dac_dig_tlv), | |
177 | SOC_SINGLE("DAC4 Deemphasis Switch", WM8770_DACCTRL2, 3, 1, 0), | |
178 | SOC_ENUM("DAC4 Phase", dac_phase[3]), | |
179 | ||
180 | /* ADC specific controls */ | |
181 | SOC_DOUBLE_R_TLV("Capture Volume", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
182 | 0, 31, 0, adc_tlv), | |
183 | SOC_DOUBLE_R("Capture Switch", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
184 | 5, 1, 1), | |
185 | ||
186 | /* other controls */ | |
187 | SOC_SINGLE("ADC 128x Oversampling Switch", WM8770_MSTRCTRL, 3, 1, 0), | |
188 | SOC_SINGLE("ADC Highpass Filter Switch", WM8770_IFACECTRL, 8, 1, 1) | |
189 | }; | |
190 | ||
191 | static const char *ain_text[] = { | |
192 | "AIN1", "AIN2", "AIN3", "AIN4", | |
193 | "AIN5", "AIN6", "AIN7", "AIN8" | |
194 | }; | |
195 | ||
7a6c0a58 TI |
196 | static SOC_ENUM_DOUBLE_DECL(ain_enum, |
197 | WM8770_ADCMUX, 0, 4, ain_text); | |
c046fd4d DP |
198 | |
199 | static const struct snd_kcontrol_new ain_mux = | |
200 | SOC_DAPM_ENUM("Capture Mux", ain_enum); | |
201 | ||
202 | static const struct snd_kcontrol_new vout1_mix_controls[] = { | |
203 | SOC_DAPM_SINGLE("DAC1 Switch", WM8770_OUTMUX1, 0, 1, 0), | |
204 | SOC_DAPM_SINGLE("AUX1 Switch", WM8770_OUTMUX1, 1, 1, 0), | |
205 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 2, 1, 0) | |
206 | }; | |
207 | ||
208 | static const struct snd_kcontrol_new vout2_mix_controls[] = { | |
209 | SOC_DAPM_SINGLE("DAC2 Switch", WM8770_OUTMUX1, 3, 1, 0), | |
210 | SOC_DAPM_SINGLE("AUX2 Switch", WM8770_OUTMUX1, 4, 1, 0), | |
211 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 5, 1, 0) | |
212 | }; | |
213 | ||
214 | static const struct snd_kcontrol_new vout3_mix_controls[] = { | |
215 | SOC_DAPM_SINGLE("DAC3 Switch", WM8770_OUTMUX2, 0, 1, 0), | |
216 | SOC_DAPM_SINGLE("AUX3 Switch", WM8770_OUTMUX2, 1, 1, 0), | |
217 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 2, 1, 0) | |
218 | }; | |
219 | ||
220 | static const struct snd_kcontrol_new vout4_mix_controls[] = { | |
221 | SOC_DAPM_SINGLE("DAC4 Switch", WM8770_OUTMUX2, 3, 1, 0), | |
222 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 4, 1, 0) | |
223 | }; | |
224 | ||
225 | static const struct snd_soc_dapm_widget wm8770_dapm_widgets[] = { | |
226 | SND_SOC_DAPM_INPUT("AUX1"), | |
227 | SND_SOC_DAPM_INPUT("AUX2"), | |
228 | SND_SOC_DAPM_INPUT("AUX3"), | |
229 | ||
230 | SND_SOC_DAPM_INPUT("AIN1"), | |
231 | SND_SOC_DAPM_INPUT("AIN2"), | |
232 | SND_SOC_DAPM_INPUT("AIN3"), | |
233 | SND_SOC_DAPM_INPUT("AIN4"), | |
234 | SND_SOC_DAPM_INPUT("AIN5"), | |
235 | SND_SOC_DAPM_INPUT("AIN6"), | |
236 | SND_SOC_DAPM_INPUT("AIN7"), | |
237 | SND_SOC_DAPM_INPUT("AIN8"), | |
238 | ||
239 | SND_SOC_DAPM_MUX("Capture Mux", WM8770_ADCMUX, 8, 1, &ain_mux), | |
240 | ||
241 | SND_SOC_DAPM_ADC("ADC", "Capture", WM8770_PWDNCTRL, 1, 1), | |
242 | ||
243 | SND_SOC_DAPM_DAC("DAC1", "Playback", WM8770_PWDNCTRL, 2, 1), | |
244 | SND_SOC_DAPM_DAC("DAC2", "Playback", WM8770_PWDNCTRL, 3, 1), | |
245 | SND_SOC_DAPM_DAC("DAC3", "Playback", WM8770_PWDNCTRL, 4, 1), | |
246 | SND_SOC_DAPM_DAC("DAC4", "Playback", WM8770_PWDNCTRL, 5, 1), | |
247 | ||
248 | SND_SOC_DAPM_SUPPLY("VOUT12 Supply", SND_SOC_NOPM, 0, 0, | |
249 | vout12supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
250 | SND_SOC_DAPM_SUPPLY("VOUT34 Supply", SND_SOC_NOPM, 0, 0, | |
251 | vout34supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
252 | ||
253 | SND_SOC_DAPM_MIXER("VOUT1 Mixer", SND_SOC_NOPM, 0, 0, | |
254 | vout1_mix_controls, ARRAY_SIZE(vout1_mix_controls)), | |
255 | SND_SOC_DAPM_MIXER("VOUT2 Mixer", SND_SOC_NOPM, 0, 0, | |
256 | vout2_mix_controls, ARRAY_SIZE(vout2_mix_controls)), | |
257 | SND_SOC_DAPM_MIXER("VOUT3 Mixer", SND_SOC_NOPM, 0, 0, | |
258 | vout3_mix_controls, ARRAY_SIZE(vout3_mix_controls)), | |
259 | SND_SOC_DAPM_MIXER("VOUT4 Mixer", SND_SOC_NOPM, 0, 0, | |
260 | vout4_mix_controls, ARRAY_SIZE(vout4_mix_controls)), | |
261 | ||
262 | SND_SOC_DAPM_OUTPUT("VOUT1"), | |
263 | SND_SOC_DAPM_OUTPUT("VOUT2"), | |
264 | SND_SOC_DAPM_OUTPUT("VOUT3"), | |
265 | SND_SOC_DAPM_OUTPUT("VOUT4") | |
266 | }; | |
267 | ||
268 | static const struct snd_soc_dapm_route wm8770_intercon[] = { | |
269 | { "Capture Mux", "AIN1", "AIN1" }, | |
270 | { "Capture Mux", "AIN2", "AIN2" }, | |
271 | { "Capture Mux", "AIN3", "AIN3" }, | |
272 | { "Capture Mux", "AIN4", "AIN4" }, | |
273 | { "Capture Mux", "AIN5", "AIN5" }, | |
274 | { "Capture Mux", "AIN6", "AIN6" }, | |
275 | { "Capture Mux", "AIN7", "AIN7" }, | |
276 | { "Capture Mux", "AIN8", "AIN8" }, | |
277 | ||
278 | { "ADC", NULL, "Capture Mux" }, | |
279 | ||
280 | { "VOUT1 Mixer", NULL, "VOUT12 Supply" }, | |
281 | { "VOUT1 Mixer", "DAC1 Switch", "DAC1" }, | |
282 | { "VOUT1 Mixer", "AUX1 Switch", "AUX1" }, | |
283 | { "VOUT1 Mixer", "Bypass Switch", "Capture Mux" }, | |
284 | ||
285 | { "VOUT2 Mixer", NULL, "VOUT12 Supply" }, | |
286 | { "VOUT2 Mixer", "DAC2 Switch", "DAC2" }, | |
287 | { "VOUT2 Mixer", "AUX2 Switch", "AUX2" }, | |
288 | { "VOUT2 Mixer", "Bypass Switch", "Capture Mux" }, | |
289 | ||
290 | { "VOUT3 Mixer", NULL, "VOUT34 Supply" }, | |
291 | { "VOUT3 Mixer", "DAC3 Switch", "DAC3" }, | |
292 | { "VOUT3 Mixer", "AUX3 Switch", "AUX3" }, | |
293 | { "VOUT3 Mixer", "Bypass Switch", "Capture Mux" }, | |
294 | ||
295 | { "VOUT4 Mixer", NULL, "VOUT34 Supply" }, | |
296 | { "VOUT4 Mixer", "DAC4 Switch", "DAC4" }, | |
297 | { "VOUT4 Mixer", "Bypass Switch", "Capture Mux" }, | |
298 | ||
299 | { "VOUT1", NULL, "VOUT1 Mixer" }, | |
300 | { "VOUT2", NULL, "VOUT2 Mixer" }, | |
301 | { "VOUT3", NULL, "VOUT3 Mixer" }, | |
302 | { "VOUT4", NULL, "VOUT4 Mixer" } | |
303 | }; | |
304 | ||
305 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
306 | struct snd_kcontrol *kcontrol, int event) | |
307 | { | |
502cb3a2 | 308 | struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); |
c046fd4d DP |
309 | |
310 | switch (event) { | |
311 | case SND_SOC_DAPM_PRE_PMU: | |
502cb3a2 | 312 | snd_soc_component_update_bits(component, WM8770_OUTMUX1, 0x180, 0); |
c046fd4d DP |
313 | break; |
314 | case SND_SOC_DAPM_POST_PMD: | |
502cb3a2 | 315 | snd_soc_component_update_bits(component, WM8770_OUTMUX1, 0x180, 0x180); |
c046fd4d DP |
316 | break; |
317 | } | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
322 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
323 | struct snd_kcontrol *kcontrol, int event) | |
324 | { | |
502cb3a2 | 325 | struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); |
c046fd4d DP |
326 | |
327 | switch (event) { | |
328 | case SND_SOC_DAPM_PRE_PMU: | |
502cb3a2 | 329 | snd_soc_component_update_bits(component, WM8770_OUTMUX2, 0x180, 0); |
c046fd4d DP |
330 | break; |
331 | case SND_SOC_DAPM_POST_PMD: | |
502cb3a2 | 332 | snd_soc_component_update_bits(component, WM8770_OUTMUX2, 0x180, 0x180); |
c046fd4d DP |
333 | break; |
334 | } | |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
502cb3a2 | 339 | static int wm8770_reset(struct snd_soc_component *component) |
c046fd4d | 340 | { |
502cb3a2 | 341 | return snd_soc_component_write(component, WM8770_RESET, 0); |
c046fd4d DP |
342 | } |
343 | ||
344 | static int wm8770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
345 | { | |
502cb3a2 | 346 | struct snd_soc_component *component; |
c046fd4d DP |
347 | int iface, master; |
348 | ||
502cb3a2 | 349 | component = dai->component; |
c046fd4d DP |
350 | |
351 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
352 | case SND_SOC_DAIFMT_CBM_CFM: | |
353 | master = 0x100; | |
354 | break; | |
355 | case SND_SOC_DAIFMT_CBS_CFS: | |
356 | master = 0; | |
357 | break; | |
358 | default: | |
359 | return -EINVAL; | |
360 | } | |
361 | ||
362 | iface = 0; | |
363 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
364 | case SND_SOC_DAIFMT_I2S: | |
365 | iface |= 0x2; | |
366 | break; | |
367 | case SND_SOC_DAIFMT_RIGHT_J: | |
368 | break; | |
369 | case SND_SOC_DAIFMT_LEFT_J: | |
370 | iface |= 0x1; | |
371 | break; | |
372 | default: | |
373 | return -EINVAL; | |
374 | } | |
375 | ||
376 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
377 | case SND_SOC_DAIFMT_NB_NF: | |
378 | break; | |
379 | case SND_SOC_DAIFMT_IB_IF: | |
380 | iface |= 0xc; | |
381 | break; | |
382 | case SND_SOC_DAIFMT_IB_NF: | |
383 | iface |= 0x8; | |
384 | break; | |
385 | case SND_SOC_DAIFMT_NB_IF: | |
386 | iface |= 0x4; | |
387 | break; | |
388 | default: | |
389 | return -EINVAL; | |
390 | } | |
391 | ||
502cb3a2 KM |
392 | snd_soc_component_update_bits(component, WM8770_IFACECTRL, 0xf, iface); |
393 | snd_soc_component_update_bits(component, WM8770_MSTRCTRL, 0x100, master); | |
c046fd4d DP |
394 | |
395 | return 0; | |
396 | } | |
397 | ||
398 | static const int mclk_ratios[] = { | |
399 | 128, | |
400 | 192, | |
401 | 256, | |
402 | 384, | |
403 | 512, | |
404 | 768 | |
405 | }; | |
406 | ||
407 | static int wm8770_hw_params(struct snd_pcm_substream *substream, | |
408 | struct snd_pcm_hw_params *params, | |
409 | struct snd_soc_dai *dai) | |
410 | { | |
502cb3a2 | 411 | struct snd_soc_component *component; |
c046fd4d DP |
412 | struct wm8770_priv *wm8770; |
413 | int i; | |
414 | int iface; | |
415 | int shift; | |
416 | int ratio; | |
417 | ||
502cb3a2 KM |
418 | component = dai->component; |
419 | wm8770 = snd_soc_component_get_drvdata(component); | |
c046fd4d DP |
420 | |
421 | iface = 0; | |
18ce1da9 MB |
422 | switch (params_width(params)) { |
423 | case 16: | |
c046fd4d | 424 | break; |
18ce1da9 | 425 | case 20: |
c046fd4d DP |
426 | iface |= 0x10; |
427 | break; | |
18ce1da9 | 428 | case 24: |
c046fd4d DP |
429 | iface |= 0x20; |
430 | break; | |
18ce1da9 | 431 | case 32: |
c046fd4d DP |
432 | iface |= 0x30; |
433 | break; | |
434 | } | |
435 | ||
436 | switch (substream->stream) { | |
437 | case SNDRV_PCM_STREAM_PLAYBACK: | |
438 | i = 0; | |
439 | shift = 4; | |
440 | break; | |
441 | case SNDRV_PCM_STREAM_CAPTURE: | |
442 | i = 2; | |
443 | shift = 0; | |
444 | break; | |
445 | default: | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
449 | /* Only need to set MCLK/LRCLK ratio if we're master */ | |
502cb3a2 | 450 | if (snd_soc_component_read32(component, WM8770_MSTRCTRL) & 0x100) { |
c046fd4d DP |
451 | for (; i < ARRAY_SIZE(mclk_ratios); ++i) { |
452 | ratio = wm8770->sysclk / params_rate(params); | |
453 | if (ratio == mclk_ratios[i]) | |
454 | break; | |
455 | } | |
456 | ||
457 | if (i == ARRAY_SIZE(mclk_ratios)) { | |
502cb3a2 | 458 | dev_err(component->dev, |
c046fd4d DP |
459 | "Unable to configure MCLK ratio %d/%d\n", |
460 | wm8770->sysclk, params_rate(params)); | |
461 | return -EINVAL; | |
462 | } | |
463 | ||
502cb3a2 | 464 | dev_dbg(component->dev, "MCLK is %dfs\n", mclk_ratios[i]); |
c046fd4d | 465 | |
502cb3a2 | 466 | snd_soc_component_update_bits(component, WM8770_MSTRCTRL, 0x7 << shift, |
c046fd4d DP |
467 | i << shift); |
468 | } | |
469 | ||
502cb3a2 | 470 | snd_soc_component_update_bits(component, WM8770_IFACECTRL, 0x30, iface); |
c046fd4d DP |
471 | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static int wm8770_mute(struct snd_soc_dai *dai, int mute) | |
476 | { | |
502cb3a2 | 477 | struct snd_soc_component *component; |
c046fd4d | 478 | |
502cb3a2 KM |
479 | component = dai->component; |
480 | return snd_soc_component_update_bits(component, WM8770_DACMUTE, 0x10, | |
c046fd4d DP |
481 | !!mute << 4); |
482 | } | |
483 | ||
484 | static int wm8770_set_sysclk(struct snd_soc_dai *dai, | |
485 | int clk_id, unsigned int freq, int dir) | |
486 | { | |
502cb3a2 | 487 | struct snd_soc_component *component; |
c046fd4d DP |
488 | struct wm8770_priv *wm8770; |
489 | ||
502cb3a2 KM |
490 | component = dai->component; |
491 | wm8770 = snd_soc_component_get_drvdata(component); | |
c046fd4d DP |
492 | wm8770->sysclk = freq; |
493 | return 0; | |
494 | } | |
495 | ||
502cb3a2 | 496 | static int wm8770_set_bias_level(struct snd_soc_component *component, |
c046fd4d DP |
497 | enum snd_soc_bias_level level) |
498 | { | |
499 | int ret; | |
500 | struct wm8770_priv *wm8770; | |
501 | ||
502cb3a2 | 502 | wm8770 = snd_soc_component_get_drvdata(component); |
c046fd4d DP |
503 | |
504 | switch (level) { | |
505 | case SND_SOC_BIAS_ON: | |
506 | break; | |
507 | case SND_SOC_BIAS_PREPARE: | |
508 | break; | |
509 | case SND_SOC_BIAS_STANDBY: | |
502cb3a2 | 510 | if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
c046fd4d DP |
511 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), |
512 | wm8770->supplies); | |
513 | if (ret) { | |
502cb3a2 | 514 | dev_err(component->dev, |
c046fd4d DP |
515 | "Failed to enable supplies: %d\n", |
516 | ret); | |
517 | return ret; | |
518 | } | |
dc43b046 MB |
519 | |
520 | regcache_sync(wm8770->regmap); | |
521 | ||
c046fd4d | 522 | /* global powerup */ |
502cb3a2 | 523 | snd_soc_component_write(component, WM8770_PWDNCTRL, 0); |
c046fd4d DP |
524 | } |
525 | break; | |
526 | case SND_SOC_BIAS_OFF: | |
527 | /* global powerdown */ | |
502cb3a2 | 528 | snd_soc_component_write(component, WM8770_PWDNCTRL, 1); |
c046fd4d DP |
529 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), |
530 | wm8770->supplies); | |
531 | break; | |
532 | } | |
533 | ||
c046fd4d DP |
534 | return 0; |
535 | } | |
536 | ||
537 | #define WM8770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
538 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
539 | ||
85e7652d | 540 | static const struct snd_soc_dai_ops wm8770_dai_ops = { |
c046fd4d DP |
541 | .digital_mute = wm8770_mute, |
542 | .hw_params = wm8770_hw_params, | |
543 | .set_fmt = wm8770_set_fmt, | |
544 | .set_sysclk = wm8770_set_sysclk, | |
545 | }; | |
546 | ||
547 | static struct snd_soc_dai_driver wm8770_dai = { | |
548 | .name = "wm8770-hifi", | |
549 | .playback = { | |
550 | .stream_name = "Playback", | |
551 | .channels_min = 2, | |
552 | .channels_max = 2, | |
553 | .rates = SNDRV_PCM_RATE_8000_192000, | |
554 | .formats = WM8770_FORMATS | |
555 | }, | |
556 | .capture = { | |
557 | .stream_name = "Capture", | |
558 | .channels_min = 2, | |
559 | .channels_max = 2, | |
560 | .rates = SNDRV_PCM_RATE_8000_96000, | |
561 | .formats = WM8770_FORMATS | |
562 | }, | |
563 | .ops = &wm8770_dai_ops, | |
564 | .symmetric_rates = 1 | |
565 | }; | |
566 | ||
502cb3a2 | 567 | static int wm8770_probe(struct snd_soc_component *component) |
c046fd4d DP |
568 | { |
569 | struct wm8770_priv *wm8770; | |
570 | int ret; | |
c046fd4d | 571 | |
502cb3a2 KM |
572 | wm8770 = snd_soc_component_get_drvdata(component); |
573 | wm8770->component = component; | |
c046fd4d | 574 | |
c046fd4d DP |
575 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), |
576 | wm8770->supplies); | |
577 | if (ret) { | |
502cb3a2 | 578 | dev_err(component->dev, "Failed to enable supplies: %d\n", ret); |
f81ad942 | 579 | return ret; |
c046fd4d DP |
580 | } |
581 | ||
502cb3a2 | 582 | ret = wm8770_reset(component); |
c046fd4d | 583 | if (ret < 0) { |
502cb3a2 | 584 | dev_err(component->dev, "Failed to issue reset: %d\n", ret); |
c046fd4d DP |
585 | goto err_reg_enable; |
586 | } | |
587 | ||
c046fd4d | 588 | /* latch the volume update bits */ |
502cb3a2 KM |
589 | snd_soc_component_update_bits(component, WM8770_MSDIGVOL, 0x100, 0x100); |
590 | snd_soc_component_update_bits(component, WM8770_MSALGVOL, 0x100, 0x100); | |
591 | snd_soc_component_update_bits(component, WM8770_VOUT1RVOL, 0x100, 0x100); | |
592 | snd_soc_component_update_bits(component, WM8770_VOUT2RVOL, 0x100, 0x100); | |
593 | snd_soc_component_update_bits(component, WM8770_VOUT3RVOL, 0x100, 0x100); | |
594 | snd_soc_component_update_bits(component, WM8770_VOUT4RVOL, 0x100, 0x100); | |
595 | snd_soc_component_update_bits(component, WM8770_DAC1RVOL, 0x100, 0x100); | |
596 | snd_soc_component_update_bits(component, WM8770_DAC2RVOL, 0x100, 0x100); | |
597 | snd_soc_component_update_bits(component, WM8770_DAC3RVOL, 0x100, 0x100); | |
598 | snd_soc_component_update_bits(component, WM8770_DAC4RVOL, 0x100, 0x100); | |
c046fd4d DP |
599 | |
600 | /* mute all DACs */ | |
502cb3a2 | 601 | snd_soc_component_update_bits(component, WM8770_DACMUTE, 0x10, 0x10); |
c046fd4d | 602 | |
c046fd4d DP |
603 | err_reg_enable: |
604 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
c046fd4d DP |
605 | return ret; |
606 | } | |
607 | ||
502cb3a2 KM |
608 | static const struct snd_soc_component_driver soc_component_dev_wm8770 = { |
609 | .probe = wm8770_probe, | |
610 | .set_bias_level = wm8770_set_bias_level, | |
611 | .controls = wm8770_snd_controls, | |
612 | .num_controls = ARRAY_SIZE(wm8770_snd_controls), | |
613 | .dapm_widgets = wm8770_dapm_widgets, | |
614 | .num_dapm_widgets = ARRAY_SIZE(wm8770_dapm_widgets), | |
615 | .dapm_routes = wm8770_intercon, | |
616 | .num_dapm_routes = ARRAY_SIZE(wm8770_intercon), | |
617 | .use_pmdown_time = 1, | |
618 | .endianness = 1, | |
619 | .non_legacy_dai_naming = 1, | |
c046fd4d DP |
620 | }; |
621 | ||
13c7d08f MB |
622 | static const struct of_device_id wm8770_of_match[] = { |
623 | { .compatible = "wlf,wm8770", }, | |
624 | { } | |
625 | }; | |
626 | MODULE_DEVICE_TABLE(of, wm8770_of_match); | |
627 | ||
dc43b046 MB |
628 | static const struct regmap_config wm8770_regmap = { |
629 | .reg_bits = 7, | |
630 | .val_bits = 9, | |
631 | .max_register = WM8770_RESET, | |
632 | ||
633 | .reg_defaults = wm8770_reg_defaults, | |
634 | .num_reg_defaults = ARRAY_SIZE(wm8770_reg_defaults), | |
635 | .cache_type = REGCACHE_RBTREE, | |
636 | ||
637 | .volatile_reg = wm8770_volatile_reg, | |
638 | }; | |
639 | ||
7a79e94e | 640 | static int wm8770_spi_probe(struct spi_device *spi) |
c046fd4d DP |
641 | { |
642 | struct wm8770_priv *wm8770; | |
f81ad942 | 643 | int ret, i; |
c046fd4d | 644 | |
3025ae45 MB |
645 | wm8770 = devm_kzalloc(&spi->dev, sizeof(struct wm8770_priv), |
646 | GFP_KERNEL); | |
c046fd4d DP |
647 | if (!wm8770) |
648 | return -ENOMEM; | |
649 | ||
f81ad942 MB |
650 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) |
651 | wm8770->supplies[i].supply = wm8770_supply_names[i]; | |
652 | ||
653 | ret = devm_regulator_bulk_get(&spi->dev, ARRAY_SIZE(wm8770->supplies), | |
654 | wm8770->supplies); | |
655 | if (ret) { | |
656 | dev_err(&spi->dev, "Failed to request supplies: %d\n", ret); | |
657 | return ret; | |
658 | } | |
659 | ||
660 | wm8770->disable_nb[0].notifier_call = wm8770_regulator_event_0; | |
661 | wm8770->disable_nb[1].notifier_call = wm8770_regulator_event_1; | |
662 | wm8770->disable_nb[2].notifier_call = wm8770_regulator_event_2; | |
663 | ||
664 | /* This should really be moved into the regulator core */ | |
665 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) { | |
0bb423f2 GL |
666 | ret = devm_regulator_register_notifier( |
667 | wm8770->supplies[i].consumer, | |
668 | &wm8770->disable_nb[i]); | |
f81ad942 MB |
669 | if (ret) { |
670 | dev_err(&spi->dev, | |
671 | "Failed to register regulator notifier: %d\n", | |
672 | ret); | |
673 | } | |
674 | } | |
675 | ||
dc43b046 MB |
676 | wm8770->regmap = devm_regmap_init_spi(spi, &wm8770_regmap); |
677 | if (IS_ERR(wm8770->regmap)) | |
678 | return PTR_ERR(wm8770->regmap); | |
679 | ||
c046fd4d DP |
680 | spi_set_drvdata(spi, wm8770); |
681 | ||
502cb3a2 KM |
682 | ret = devm_snd_soc_register_component(&spi->dev, |
683 | &soc_component_dev_wm8770, &wm8770_dai, 1); | |
3025ae45 | 684 | |
c046fd4d DP |
685 | return ret; |
686 | } | |
687 | ||
c046fd4d DP |
688 | static struct spi_driver wm8770_spi_driver = { |
689 | .driver = { | |
690 | .name = "wm8770", | |
13c7d08f | 691 | .of_match_table = wm8770_of_match, |
c046fd4d DP |
692 | }, |
693 | .probe = wm8770_spi_probe, | |
c046fd4d | 694 | }; |
c046fd4d | 695 | |
a5c88780 | 696 | module_spi_driver(wm8770_spi_driver); |
c046fd4d DP |
697 | |
698 | MODULE_DESCRIPTION("ASoC WM8770 driver"); | |
699 | MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); | |
700 | MODULE_LICENSE("GPL"); |