Commit | Line | Data |
---|---|---|
34ca27f3 AP |
1 | /* |
2 | * Nuvoton NAU8825 audio codec driver | |
3 | * | |
4 | * Copyright 2015 Google Chromium project. | |
5 | * Author: Anatol Pomozov <anatol@chromium.org> | |
6 | * Copyright 2015 Nuvoton Technology Corp. | |
7 | * Co-author: Meng-Huang Kuo <mhkuo@nuvoton.com> | |
8 | * | |
9 | * Licensed under the GPL-2. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/delay.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/i2c.h> | |
16 | #include <linux/regmap.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/clk.h> | |
b3681308 | 19 | #include <linux/acpi.h> |
c86ba612 | 20 | #include <linux/math64.h> |
34ca27f3 AP |
21 | |
22 | #include <sound/initval.h> | |
23 | #include <sound/tlv.h> | |
24 | #include <sound/core.h> | |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/jack.h> | |
29 | ||
30 | ||
31 | #include "nau8825.h" | |
32 | ||
c86ba612 BZ |
33 | #define NAU_FREF_MAX 13500000 |
34 | #define NAU_FVCO_MAX 100000000 | |
35 | #define NAU_FVCO_MIN 90000000 | |
36 | ||
37 | struct nau8825_fll { | |
38 | int mclk_src; | |
39 | int ratio; | |
40 | int fll_frac; | |
41 | int fll_int; | |
42 | int clk_ref_div; | |
43 | }; | |
44 | ||
45 | struct nau8825_fll_attr { | |
46 | unsigned int param; | |
47 | unsigned int val; | |
48 | }; | |
49 | ||
50 | /* scaling for mclk from sysclk_src output */ | |
51 | static const struct nau8825_fll_attr mclk_src_scaling[] = { | |
52 | { 1, 0x0 }, | |
53 | { 2, 0x2 }, | |
54 | { 4, 0x3 }, | |
55 | { 8, 0x4 }, | |
56 | { 16, 0x5 }, | |
57 | { 32, 0x6 }, | |
58 | { 3, 0x7 }, | |
59 | { 6, 0xa }, | |
60 | { 12, 0xb }, | |
61 | { 24, 0xc }, | |
62 | { 48, 0xd }, | |
63 | { 96, 0xe }, | |
64 | { 5, 0xf }, | |
65 | }; | |
66 | ||
67 | /* ratio for input clk freq */ | |
68 | static const struct nau8825_fll_attr fll_ratio[] = { | |
69 | { 512000, 0x01 }, | |
70 | { 256000, 0x02 }, | |
71 | { 128000, 0x04 }, | |
72 | { 64000, 0x08 }, | |
73 | { 32000, 0x10 }, | |
74 | { 8000, 0x20 }, | |
75 | { 4000, 0x40 }, | |
76 | }; | |
77 | ||
78 | static const struct nau8825_fll_attr fll_pre_scalar[] = { | |
79 | { 1, 0x0 }, | |
80 | { 2, 0x1 }, | |
81 | { 4, 0x2 }, | |
82 | { 8, 0x3 }, | |
83 | }; | |
84 | ||
34ca27f3 AP |
85 | static const struct reg_default nau8825_reg_defaults[] = { |
86 | { NAU8825_REG_ENA_CTRL, 0x00ff }, | |
87 | { NAU8825_REG_CLK_DIVIDER, 0x0050 }, | |
88 | { NAU8825_REG_FLL1, 0x0 }, | |
89 | { NAU8825_REG_FLL2, 0x3126 }, | |
90 | { NAU8825_REG_FLL3, 0x0008 }, | |
91 | { NAU8825_REG_FLL4, 0x0010 }, | |
92 | { NAU8825_REG_FLL5, 0x0 }, | |
93 | { NAU8825_REG_FLL6, 0x6000 }, | |
94 | { NAU8825_REG_FLL_VCO_RSV, 0xf13c }, | |
95 | { NAU8825_REG_HSD_CTRL, 0x000c }, | |
96 | { NAU8825_REG_JACK_DET_CTRL, 0x0 }, | |
97 | { NAU8825_REG_INTERRUPT_MASK, 0x0 }, | |
98 | { NAU8825_REG_INTERRUPT_DIS_CTRL, 0xffff }, | |
99 | { NAU8825_REG_SAR_CTRL, 0x0015 }, | |
100 | { NAU8825_REG_KEYDET_CTRL, 0x0110 }, | |
101 | { NAU8825_REG_VDET_THRESHOLD_1, 0x0 }, | |
102 | { NAU8825_REG_VDET_THRESHOLD_2, 0x0 }, | |
103 | { NAU8825_REG_VDET_THRESHOLD_3, 0x0 }, | |
104 | { NAU8825_REG_VDET_THRESHOLD_4, 0x0 }, | |
105 | { NAU8825_REG_GPIO34_CTRL, 0x0 }, | |
106 | { NAU8825_REG_GPIO12_CTRL, 0x0 }, | |
107 | { NAU8825_REG_TDM_CTRL, 0x0 }, | |
108 | { NAU8825_REG_I2S_PCM_CTRL1, 0x000b }, | |
109 | { NAU8825_REG_I2S_PCM_CTRL2, 0x8010 }, | |
110 | { NAU8825_REG_LEFT_TIME_SLOT, 0x0 }, | |
111 | { NAU8825_REG_RIGHT_TIME_SLOT, 0x0 }, | |
112 | { NAU8825_REG_BIQ_CTRL, 0x0 }, | |
113 | { NAU8825_REG_BIQ_COF1, 0x0 }, | |
114 | { NAU8825_REG_BIQ_COF2, 0x0 }, | |
115 | { NAU8825_REG_BIQ_COF3, 0x0 }, | |
116 | { NAU8825_REG_BIQ_COF4, 0x0 }, | |
117 | { NAU8825_REG_BIQ_COF5, 0x0 }, | |
118 | { NAU8825_REG_BIQ_COF6, 0x0 }, | |
119 | { NAU8825_REG_BIQ_COF7, 0x0 }, | |
120 | { NAU8825_REG_BIQ_COF8, 0x0 }, | |
121 | { NAU8825_REG_BIQ_COF9, 0x0 }, | |
122 | { NAU8825_REG_BIQ_COF10, 0x0 }, | |
123 | { NAU8825_REG_ADC_RATE, 0x0010 }, | |
124 | { NAU8825_REG_DAC_CTRL1, 0x0001 }, | |
125 | { NAU8825_REG_DAC_CTRL2, 0x0 }, | |
126 | { NAU8825_REG_DAC_DGAIN_CTRL, 0x0 }, | |
127 | { NAU8825_REG_ADC_DGAIN_CTRL, 0x00cf }, | |
128 | { NAU8825_REG_MUTE_CTRL, 0x0 }, | |
129 | { NAU8825_REG_HSVOL_CTRL, 0x0 }, | |
130 | { NAU8825_REG_DACL_CTRL, 0x02cf }, | |
131 | { NAU8825_REG_DACR_CTRL, 0x00cf }, | |
132 | { NAU8825_REG_ADC_DRC_KNEE_IP12, 0x1486 }, | |
133 | { NAU8825_REG_ADC_DRC_KNEE_IP34, 0x0f12 }, | |
134 | { NAU8825_REG_ADC_DRC_SLOPES, 0x25ff }, | |
135 | { NAU8825_REG_ADC_DRC_ATKDCY, 0x3457 }, | |
136 | { NAU8825_REG_DAC_DRC_KNEE_IP12, 0x1486 }, | |
137 | { NAU8825_REG_DAC_DRC_KNEE_IP34, 0x0f12 }, | |
138 | { NAU8825_REG_DAC_DRC_SLOPES, 0x25f9 }, | |
139 | { NAU8825_REG_DAC_DRC_ATKDCY, 0x3457 }, | |
140 | { NAU8825_REG_IMM_MODE_CTRL, 0x0 }, | |
141 | { NAU8825_REG_CLASSG_CTRL, 0x0 }, | |
142 | { NAU8825_REG_OPT_EFUSE_CTRL, 0x0 }, | |
143 | { NAU8825_REG_MISC_CTRL, 0x0 }, | |
144 | { NAU8825_REG_BIAS_ADJ, 0x0 }, | |
145 | { NAU8825_REG_TRIM_SETTINGS, 0x0 }, | |
146 | { NAU8825_REG_ANALOG_CONTROL_1, 0x0 }, | |
147 | { NAU8825_REG_ANALOG_CONTROL_2, 0x0 }, | |
148 | { NAU8825_REG_ANALOG_ADC_1, 0x0011 }, | |
149 | { NAU8825_REG_ANALOG_ADC_2, 0x0020 }, | |
150 | { NAU8825_REG_RDAC, 0x0008 }, | |
151 | { NAU8825_REG_MIC_BIAS, 0x0006 }, | |
152 | { NAU8825_REG_BOOST, 0x0 }, | |
153 | { NAU8825_REG_FEPGA, 0x0 }, | |
154 | { NAU8825_REG_POWER_UP_CONTROL, 0x0 }, | |
155 | { NAU8825_REG_CHARGE_PUMP, 0x0 }, | |
156 | }; | |
157 | ||
158 | static bool nau8825_readable_reg(struct device *dev, unsigned int reg) | |
159 | { | |
160 | switch (reg) { | |
161 | case NAU8825_REG_ENA_CTRL: | |
162 | case NAU8825_REG_CLK_DIVIDER ... NAU8825_REG_FLL_VCO_RSV: | |
163 | case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL: | |
164 | case NAU8825_REG_INTERRUPT_MASK ... NAU8825_REG_KEYDET_CTRL: | |
165 | case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL: | |
166 | case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY: | |
167 | case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY: | |
168 | case NAU8825_REG_IMM_MODE_CTRL ... NAU8825_REG_IMM_RMS_R: | |
169 | case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL: | |
170 | case NAU8825_REG_MISC_CTRL: | |
171 | case NAU8825_REG_I2C_DEVICE_ID ... NAU8825_REG_SARDOUT_RAM_STATUS: | |
172 | case NAU8825_REG_BIAS_ADJ: | |
173 | case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2: | |
174 | case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS: | |
175 | case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA: | |
176 | case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_GENERAL_STATUS: | |
177 | return true; | |
178 | default: | |
179 | return false; | |
180 | } | |
181 | ||
182 | } | |
183 | ||
184 | static bool nau8825_writeable_reg(struct device *dev, unsigned int reg) | |
185 | { | |
186 | switch (reg) { | |
187 | case NAU8825_REG_RESET ... NAU8825_REG_ENA_CTRL: | |
188 | case NAU8825_REG_CLK_DIVIDER ... NAU8825_REG_FLL_VCO_RSV: | |
189 | case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL: | |
190 | case NAU8825_REG_INTERRUPT_MASK: | |
191 | case NAU8825_REG_INT_CLR_KEY_STATUS ... NAU8825_REG_KEYDET_CTRL: | |
192 | case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL: | |
193 | case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY: | |
194 | case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY: | |
195 | case NAU8825_REG_IMM_MODE_CTRL: | |
196 | case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL: | |
197 | case NAU8825_REG_MISC_CTRL: | |
198 | case NAU8825_REG_BIAS_ADJ: | |
199 | case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2: | |
200 | case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS: | |
201 | case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA: | |
202 | case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_CHARGE_PUMP: | |
203 | return true; | |
204 | default: | |
205 | return false; | |
206 | } | |
207 | } | |
208 | ||
209 | static bool nau8825_volatile_reg(struct device *dev, unsigned int reg) | |
210 | { | |
211 | switch (reg) { | |
212 | case NAU8825_REG_RESET: | |
213 | case NAU8825_REG_IRQ_STATUS: | |
214 | case NAU8825_REG_INT_CLR_KEY_STATUS: | |
215 | case NAU8825_REG_IMM_RMS_L: | |
216 | case NAU8825_REG_IMM_RMS_R: | |
217 | case NAU8825_REG_I2C_DEVICE_ID: | |
218 | case NAU8825_REG_SARDOUT_RAM_STATUS: | |
219 | case NAU8825_REG_CHARGE_PUMP_INPUT_READ: | |
220 | case NAU8825_REG_GENERAL_STATUS: | |
221 | return true; | |
222 | default: | |
223 | return false; | |
224 | } | |
225 | } | |
226 | ||
227 | static int nau8825_pump_event(struct snd_soc_dapm_widget *w, | |
228 | struct snd_kcontrol *kcontrol, int event) | |
229 | { | |
230 | switch (event) { | |
231 | case SND_SOC_DAPM_POST_PMU: | |
232 | /* Prevent startup click by letting charge pump to ramp up */ | |
233 | msleep(10); | |
234 | break; | |
235 | default: | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | return 0; | |
240 | } | |
241 | ||
242 | static const char * const nau8825_adc_decimation[] = { | |
243 | "32", "64", "128", "256" | |
244 | }; | |
245 | ||
246 | static const struct soc_enum nau8825_adc_decimation_enum = | |
247 | SOC_ENUM_SINGLE(NAU8825_REG_ADC_RATE, NAU8825_ADC_SYNC_DOWN_SFT, | |
248 | ARRAY_SIZE(nau8825_adc_decimation), nau8825_adc_decimation); | |
249 | ||
250 | static const char * const nau8825_dac_oversampl[] = { | |
251 | "64", "256", "128", "", "32" | |
252 | }; | |
253 | ||
254 | static const struct soc_enum nau8825_dac_oversampl_enum = | |
255 | SOC_ENUM_SINGLE(NAU8825_REG_DAC_CTRL1, NAU8825_DAC_OVERSAMPLE_SFT, | |
256 | ARRAY_SIZE(nau8825_dac_oversampl), nau8825_dac_oversampl); | |
257 | ||
258 | static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -10300, 2400); | |
259 | static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0); | |
260 | static const DECLARE_TLV_DB_MINMAX(dac_vol_tlv, -5400, 0); | |
261 | static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600); | |
262 | static const DECLARE_TLV_DB_MINMAX_MUTE(crosstalk_vol_tlv, -9600, 2400); | |
263 | ||
264 | static const struct snd_kcontrol_new nau8825_controls[] = { | |
265 | SOC_SINGLE_TLV("Mic Volume", NAU8825_REG_ADC_DGAIN_CTRL, | |
266 | 0, 0xff, 0, adc_vol_tlv), | |
267 | SOC_DOUBLE_TLV("Headphone Bypass Volume", NAU8825_REG_ADC_DGAIN_CTRL, | |
268 | 12, 8, 0x0f, 0, sidetone_vol_tlv), | |
269 | SOC_DOUBLE_TLV("Headphone Volume", NAU8825_REG_HSVOL_CTRL, | |
270 | 6, 0, 0x3f, 1, dac_vol_tlv), | |
271 | SOC_SINGLE_TLV("Frontend PGA Volume", NAU8825_REG_POWER_UP_CONTROL, | |
272 | 8, 37, 0, fepga_gain_tlv), | |
273 | SOC_DOUBLE_TLV("Headphone Crosstalk Volume", NAU8825_REG_DAC_DGAIN_CTRL, | |
274 | 0, 8, 0xff, 0, crosstalk_vol_tlv), | |
275 | ||
276 | SOC_ENUM("ADC Decimation Rate", nau8825_adc_decimation_enum), | |
277 | SOC_ENUM("DAC Oversampling Rate", nau8825_dac_oversampl_enum), | |
278 | }; | |
279 | ||
280 | /* DAC Mux 0x33[9] and 0x34[9] */ | |
281 | static const char * const nau8825_dac_src[] = { | |
282 | "DACL", "DACR", | |
283 | }; | |
284 | ||
285 | static SOC_ENUM_SINGLE_DECL( | |
286 | nau8825_dacl_enum, NAU8825_REG_DACL_CTRL, | |
287 | NAU8825_DACL_CH_SEL_SFT, nau8825_dac_src); | |
288 | ||
289 | static SOC_ENUM_SINGLE_DECL( | |
290 | nau8825_dacr_enum, NAU8825_REG_DACR_CTRL, | |
291 | NAU8825_DACR_CH_SEL_SFT, nau8825_dac_src); | |
292 | ||
293 | static const struct snd_kcontrol_new nau8825_dacl_mux = | |
294 | SOC_DAPM_ENUM("DACL Source", nau8825_dacl_enum); | |
295 | ||
296 | static const struct snd_kcontrol_new nau8825_dacr_mux = | |
297 | SOC_DAPM_ENUM("DACR Source", nau8825_dacr_enum); | |
298 | ||
299 | ||
300 | static const struct snd_soc_dapm_widget nau8825_dapm_widgets[] = { | |
301 | SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, NAU8825_REG_I2S_PCM_CTRL2, | |
302 | 15, 1), | |
303 | ||
304 | SND_SOC_DAPM_INPUT("MIC"), | |
305 | SND_SOC_DAPM_MICBIAS("MICBIAS", NAU8825_REG_MIC_BIAS, 8, 0), | |
306 | ||
307 | SND_SOC_DAPM_PGA("Frontend PGA", NAU8825_REG_POWER_UP_CONTROL, 14, 0, | |
308 | NULL, 0), | |
309 | ||
310 | SND_SOC_DAPM_ADC("ADC", NULL, NAU8825_REG_ENA_CTRL, 8, 0), | |
311 | SND_SOC_DAPM_SUPPLY("ADC Clock", NAU8825_REG_ENA_CTRL, 7, 0, NULL, 0), | |
312 | SND_SOC_DAPM_SUPPLY("ADC Power", NAU8825_REG_ANALOG_ADC_2, 6, 0, NULL, | |
313 | 0), | |
314 | ||
315 | /* ADC for button press detection */ | |
316 | SND_SOC_DAPM_ADC("SAR", NULL, NAU8825_REG_SAR_CTRL, | |
317 | NAU8825_SAR_ADC_EN_SFT, 0), | |
318 | ||
319 | SND_SOC_DAPM_DAC("ADACL", NULL, NAU8825_REG_RDAC, 12, 0), | |
320 | SND_SOC_DAPM_DAC("ADACR", NULL, NAU8825_REG_RDAC, 13, 0), | |
321 | SND_SOC_DAPM_SUPPLY("ADACL Clock", NAU8825_REG_RDAC, 8, 0, NULL, 0), | |
322 | SND_SOC_DAPM_SUPPLY("ADACR Clock", NAU8825_REG_RDAC, 9, 0, NULL, 0), | |
323 | ||
324 | SND_SOC_DAPM_DAC("DDACR", NULL, NAU8825_REG_ENA_CTRL, | |
325 | NAU8825_ENABLE_DACR_SFT, 0), | |
326 | SND_SOC_DAPM_DAC("DDACL", NULL, NAU8825_REG_ENA_CTRL, | |
327 | NAU8825_ENABLE_DACL_SFT, 0), | |
328 | SND_SOC_DAPM_SUPPLY("DDAC Clock", NAU8825_REG_ENA_CTRL, 6, 0, NULL, 0), | |
329 | ||
330 | SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &nau8825_dacl_mux), | |
331 | SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &nau8825_dacr_mux), | |
332 | ||
333 | SND_SOC_DAPM_PGA("HP amp L", NAU8825_REG_CLASSG_CTRL, 1, 0, NULL, 0), | |
334 | SND_SOC_DAPM_PGA("HP amp R", NAU8825_REG_CLASSG_CTRL, 2, 0, NULL, 0), | |
335 | SND_SOC_DAPM_SUPPLY("HP amp power", NAU8825_REG_CLASSG_CTRL, 0, 0, NULL, | |
336 | 0), | |
337 | ||
338 | SND_SOC_DAPM_SUPPLY("Charge Pump", NAU8825_REG_CHARGE_PUMP, 5, 0, | |
339 | nau8825_pump_event, SND_SOC_DAPM_POST_PMU), | |
340 | ||
341 | SND_SOC_DAPM_PGA("Output Driver R Stage 1", | |
342 | NAU8825_REG_POWER_UP_CONTROL, 5, 0, NULL, 0), | |
343 | SND_SOC_DAPM_PGA("Output Driver L Stage 1", | |
344 | NAU8825_REG_POWER_UP_CONTROL, 4, 0, NULL, 0), | |
345 | SND_SOC_DAPM_PGA("Output Driver R Stage 2", | |
346 | NAU8825_REG_POWER_UP_CONTROL, 3, 0, NULL, 0), | |
347 | SND_SOC_DAPM_PGA("Output Driver L Stage 2", | |
348 | NAU8825_REG_POWER_UP_CONTROL, 2, 0, NULL, 0), | |
349 | SND_SOC_DAPM_PGA_S("Output Driver R Stage 3", 1, | |
350 | NAU8825_REG_POWER_UP_CONTROL, 1, 0, NULL, 0), | |
351 | SND_SOC_DAPM_PGA_S("Output Driver L Stage 3", 1, | |
352 | NAU8825_REG_POWER_UP_CONTROL, 0, 0, NULL, 0), | |
353 | ||
354 | SND_SOC_DAPM_PGA_S("Output DACL", 2, NAU8825_REG_CHARGE_PUMP, 8, 1, NULL, 0), | |
355 | SND_SOC_DAPM_PGA_S("Output DACR", 2, NAU8825_REG_CHARGE_PUMP, 9, 1, NULL, 0), | |
356 | ||
357 | SND_SOC_DAPM_OUTPUT("HPOL"), | |
358 | SND_SOC_DAPM_OUTPUT("HPOR"), | |
359 | }; | |
360 | ||
361 | static const struct snd_soc_dapm_route nau8825_dapm_routes[] = { | |
362 | {"Frontend PGA", NULL, "MIC"}, | |
363 | {"ADC", NULL, "Frontend PGA"}, | |
364 | {"ADC", NULL, "ADC Clock"}, | |
365 | {"ADC", NULL, "ADC Power"}, | |
366 | {"AIFTX", NULL, "ADC"}, | |
367 | ||
368 | {"DDACL", NULL, "Playback"}, | |
369 | {"DDACR", NULL, "Playback"}, | |
370 | {"DDACL", NULL, "DDAC Clock"}, | |
371 | {"DDACR", NULL, "DDAC Clock"}, | |
372 | {"DACL Mux", "DACL", "DDACL"}, | |
373 | {"DACL Mux", "DACR", "DDACR"}, | |
374 | {"DACR Mux", "DACL", "DDACL"}, | |
375 | {"DACR Mux", "DACR", "DDACR"}, | |
376 | {"HP amp L", NULL, "DACL Mux"}, | |
377 | {"HP amp R", NULL, "DACR Mux"}, | |
378 | {"HP amp L", NULL, "HP amp power"}, | |
379 | {"HP amp R", NULL, "HP amp power"}, | |
380 | {"ADACL", NULL, "HP amp L"}, | |
381 | {"ADACR", NULL, "HP amp R"}, | |
382 | {"ADACL", NULL, "ADACL Clock"}, | |
383 | {"ADACR", NULL, "ADACR Clock"}, | |
384 | {"Output Driver L Stage 1", NULL, "ADACL"}, | |
385 | {"Output Driver R Stage 1", NULL, "ADACR"}, | |
386 | {"Output Driver L Stage 2", NULL, "Output Driver L Stage 1"}, | |
387 | {"Output Driver R Stage 2", NULL, "Output Driver R Stage 1"}, | |
388 | {"Output Driver L Stage 3", NULL, "Output Driver L Stage 2"}, | |
389 | {"Output Driver R Stage 3", NULL, "Output Driver R Stage 2"}, | |
390 | {"Output DACL", NULL, "Output Driver L Stage 3"}, | |
391 | {"Output DACR", NULL, "Output Driver R Stage 3"}, | |
392 | {"HPOL", NULL, "Output DACL"}, | |
393 | {"HPOR", NULL, "Output DACR"}, | |
394 | {"HPOL", NULL, "Charge Pump"}, | |
395 | {"HPOR", NULL, "Charge Pump"}, | |
396 | }; | |
397 | ||
398 | static int nau8825_hw_params(struct snd_pcm_substream *substream, | |
399 | struct snd_pcm_hw_params *params, | |
400 | struct snd_soc_dai *dai) | |
401 | { | |
402 | struct snd_soc_codec *codec = dai->codec; | |
403 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
404 | unsigned int val_len = 0; | |
405 | ||
406 | switch (params_width(params)) { | |
407 | case 16: | |
408 | val_len |= NAU8825_I2S_DL_16; | |
409 | break; | |
410 | case 20: | |
411 | val_len |= NAU8825_I2S_DL_20; | |
412 | break; | |
413 | case 24: | |
414 | val_len |= NAU8825_I2S_DL_24; | |
415 | break; | |
416 | case 32: | |
417 | val_len |= NAU8825_I2S_DL_32; | |
418 | break; | |
419 | default: | |
420 | return -EINVAL; | |
421 | } | |
422 | ||
423 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1, | |
424 | NAU8825_I2S_DL_MASK, val_len); | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
429 | static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
430 | { | |
431 | struct snd_soc_codec *codec = codec_dai->codec; | |
432 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
433 | unsigned int ctrl1_val = 0, ctrl2_val = 0; | |
434 | ||
435 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
436 | case SND_SOC_DAIFMT_CBM_CFM: | |
437 | ctrl2_val |= NAU8825_I2S_MS_MASTER; | |
438 | break; | |
439 | case SND_SOC_DAIFMT_CBS_CFS: | |
440 | break; | |
441 | default: | |
442 | return -EINVAL; | |
443 | } | |
444 | ||
445 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
446 | case SND_SOC_DAIFMT_NB_NF: | |
447 | break; | |
448 | case SND_SOC_DAIFMT_IB_NF: | |
449 | ctrl1_val |= NAU8825_I2S_BP_INV; | |
450 | break; | |
451 | default: | |
452 | return -EINVAL; | |
453 | } | |
454 | ||
455 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
456 | case SND_SOC_DAIFMT_I2S: | |
457 | ctrl1_val |= NAU8825_I2S_DF_I2S; | |
458 | break; | |
459 | case SND_SOC_DAIFMT_LEFT_J: | |
460 | ctrl1_val |= NAU8825_I2S_DF_LEFT; | |
461 | break; | |
462 | case SND_SOC_DAIFMT_RIGHT_J: | |
463 | ctrl1_val |= NAU8825_I2S_DF_RIGTH; | |
464 | break; | |
465 | case SND_SOC_DAIFMT_DSP_A: | |
466 | ctrl1_val |= NAU8825_I2S_DF_PCM_AB; | |
467 | break; | |
468 | case SND_SOC_DAIFMT_DSP_B: | |
469 | ctrl1_val |= NAU8825_I2S_DF_PCM_AB; | |
470 | ctrl1_val |= NAU8825_I2S_PCMB_EN; | |
471 | break; | |
472 | default: | |
473 | return -EINVAL; | |
474 | } | |
475 | ||
476 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1, | |
477 | NAU8825_I2S_DL_MASK | NAU8825_I2S_DF_MASK | | |
478 | NAU8825_I2S_BP_MASK | NAU8825_I2S_PCMB_MASK, | |
479 | ctrl1_val); | |
480 | regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
481 | NAU8825_I2S_MS_MASK, ctrl2_val); | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | static const struct snd_soc_dai_ops nau8825_dai_ops = { | |
487 | .hw_params = nau8825_hw_params, | |
488 | .set_fmt = nau8825_set_dai_fmt, | |
489 | }; | |
490 | ||
491 | #define NAU8825_RATES SNDRV_PCM_RATE_8000_192000 | |
492 | #define NAU8825_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \ | |
493 | | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) | |
494 | ||
495 | static struct snd_soc_dai_driver nau8825_dai = { | |
496 | .name = "nau8825-hifi", | |
497 | .playback = { | |
498 | .stream_name = "Playback", | |
499 | .channels_min = 1, | |
500 | .channels_max = 2, | |
501 | .rates = NAU8825_RATES, | |
502 | .formats = NAU8825_FORMATS, | |
503 | }, | |
504 | .capture = { | |
505 | .stream_name = "Capture", | |
506 | .channels_min = 1, | |
507 | .channels_max = 1, | |
508 | .rates = NAU8825_RATES, | |
509 | .formats = NAU8825_FORMATS, | |
510 | }, | |
511 | .ops = &nau8825_dai_ops, | |
512 | }; | |
513 | ||
514 | /** | |
515 | * nau8825_enable_jack_detect - Specify a jack for event reporting | |
516 | * | |
517 | * @component: component to register the jack with | |
518 | * @jack: jack to use to report headset and button events on | |
519 | * | |
520 | * After this function has been called the headset insert/remove and button | |
521 | * events will be routed to the given jack. Jack can be null to stop | |
522 | * reporting. | |
523 | */ | |
524 | int nau8825_enable_jack_detect(struct snd_soc_codec *codec, | |
525 | struct snd_soc_jack *jack) | |
526 | { | |
527 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
528 | struct regmap *regmap = nau8825->regmap; | |
529 | ||
530 | nau8825->jack = jack; | |
531 | ||
532 | /* Ground HP Outputs[1:0], needed for headset auto detection | |
533 | * Enable Automatic Mic/Gnd switching reading on insert interrupt[6] | |
534 | */ | |
535 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, | |
536 | NAU8825_HSD_AUTO_MODE | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L, | |
537 | NAU8825_HSD_AUTO_MODE | NAU8825_SPKR_DWN1R | NAU8825_SPKR_DWN1L); | |
538 | ||
539 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
540 | NAU8825_IRQ_HEADSET_COMPLETE_EN | NAU8825_IRQ_EJECT_EN, 0); | |
541 | ||
542 | return 0; | |
543 | } | |
544 | EXPORT_SYMBOL_GPL(nau8825_enable_jack_detect); | |
545 | ||
546 | ||
547 | static bool nau8825_is_jack_inserted(struct regmap *regmap) | |
548 | { | |
549 | int status; | |
550 | ||
551 | regmap_read(regmap, NAU8825_REG_I2C_DEVICE_ID, &status); | |
552 | return !(status & NAU8825_GPIO2JD1); | |
553 | } | |
554 | ||
555 | static void nau8825_restart_jack_detection(struct regmap *regmap) | |
556 | { | |
557 | /* this will restart the entire jack detection process including MIC/GND | |
558 | * switching and create interrupts. We have to go from 0 to 1 and back | |
559 | * to 0 to restart. | |
560 | */ | |
561 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
562 | NAU8825_JACK_DET_RESTART, NAU8825_JACK_DET_RESTART); | |
563 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
564 | NAU8825_JACK_DET_RESTART, 0); | |
565 | } | |
566 | ||
567 | static void nau8825_eject_jack(struct nau8825 *nau8825) | |
568 | { | |
569 | struct snd_soc_dapm_context *dapm = nau8825->dapm; | |
570 | struct regmap *regmap = nau8825->regmap; | |
571 | ||
572 | snd_soc_dapm_disable_pin(dapm, "SAR"); | |
573 | snd_soc_dapm_disable_pin(dapm, "MICBIAS"); | |
574 | /* Detach 2kOhm Resistors from MICBIAS to MICGND1/2 */ | |
575 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
576 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, 0); | |
577 | /* ground HPL/HPR, MICGRND1/2 */ | |
578 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0xf, 0xf); | |
579 | ||
580 | snd_soc_dapm_sync(dapm); | |
581 | } | |
582 | ||
583 | static int nau8825_button_decode(int value) | |
584 | { | |
585 | int buttons = 0; | |
586 | ||
587 | /* The chip supports up to 8 buttons, but ALSA defines only 6 buttons */ | |
588 | if (value & BIT(0)) | |
589 | buttons |= SND_JACK_BTN_0; | |
590 | if (value & BIT(1)) | |
591 | buttons |= SND_JACK_BTN_1; | |
592 | if (value & BIT(2)) | |
593 | buttons |= SND_JACK_BTN_2; | |
594 | if (value & BIT(3)) | |
595 | buttons |= SND_JACK_BTN_3; | |
596 | if (value & BIT(4)) | |
597 | buttons |= SND_JACK_BTN_4; | |
598 | if (value & BIT(5)) | |
599 | buttons |= SND_JACK_BTN_5; | |
600 | ||
601 | return buttons; | |
602 | } | |
603 | ||
604 | static int nau8825_jack_insert(struct nau8825 *nau8825) | |
605 | { | |
606 | struct regmap *regmap = nau8825->regmap; | |
607 | struct snd_soc_dapm_context *dapm = nau8825->dapm; | |
608 | int jack_status_reg, mic_detected; | |
609 | int type = 0; | |
610 | ||
611 | regmap_read(regmap, NAU8825_REG_GENERAL_STATUS, &jack_status_reg); | |
612 | mic_detected = (jack_status_reg >> 10) & 3; | |
613 | ||
614 | switch (mic_detected) { | |
615 | case 0: | |
616 | /* no mic */ | |
617 | type = SND_JACK_HEADPHONE; | |
618 | break; | |
619 | case 1: | |
620 | dev_dbg(nau8825->dev, "OMTP (micgnd1) mic connected\n"); | |
621 | type = SND_JACK_HEADSET; | |
622 | ||
623 | /* Unground MICGND1 */ | |
624 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2, | |
625 | 1 << 2); | |
626 | /* Attach 2kOhm Resistor from MICBIAS to MICGND1 */ | |
627 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
628 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, | |
629 | NAU8825_MICBIAS_JKR2); | |
630 | /* Attach SARADC to MICGND1 */ | |
631 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
632 | NAU8825_SAR_INPUT_MASK, | |
633 | NAU8825_SAR_INPUT_JKR2); | |
634 | ||
635 | snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); | |
636 | snd_soc_dapm_force_enable_pin(dapm, "SAR"); | |
637 | snd_soc_dapm_sync(dapm); | |
638 | break; | |
639 | case 2: | |
640 | case 3: | |
641 | dev_dbg(nau8825->dev, "CTIA (micgnd2) mic connected\n"); | |
642 | type = SND_JACK_HEADSET; | |
643 | ||
644 | /* Unground MICGND2 */ | |
645 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2, | |
646 | 2 << 2); | |
647 | /* Attach 2kOhm Resistor from MICBIAS to MICGND2 */ | |
648 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
649 | NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, | |
650 | NAU8825_MICBIAS_JKSLV); | |
651 | /* Attach SARADC to MICGND2 */ | |
652 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
653 | NAU8825_SAR_INPUT_MASK, | |
654 | NAU8825_SAR_INPUT_JKSLV); | |
655 | ||
656 | snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); | |
657 | snd_soc_dapm_force_enable_pin(dapm, "SAR"); | |
658 | snd_soc_dapm_sync(dapm); | |
659 | break; | |
660 | } | |
661 | ||
662 | if (type & SND_JACK_HEADPHONE) { | |
663 | /* Unground HPL/R */ | |
664 | regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0x3, 0); | |
665 | } | |
666 | ||
667 | return type; | |
668 | } | |
669 | ||
670 | #define NAU8825_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \ | |
671 | SND_JACK_BTN_2 | SND_JACK_BTN_3) | |
672 | ||
673 | static irqreturn_t nau8825_interrupt(int irq, void *data) | |
674 | { | |
675 | struct nau8825 *nau8825 = (struct nau8825 *)data; | |
676 | struct regmap *regmap = nau8825->regmap; | |
677 | int active_irq, clear_irq = 0, event = 0, event_mask = 0; | |
678 | ||
679 | regmap_read(regmap, NAU8825_REG_IRQ_STATUS, &active_irq); | |
680 | ||
681 | if ((active_irq & NAU8825_JACK_EJECTION_IRQ_MASK) == | |
682 | NAU8825_JACK_EJECTION_DETECTED) { | |
683 | ||
684 | nau8825_eject_jack(nau8825); | |
685 | event_mask |= SND_JACK_HEADSET; | |
686 | clear_irq = NAU8825_JACK_EJECTION_IRQ_MASK; | |
687 | } else if (active_irq & NAU8825_KEY_SHORT_PRESS_IRQ) { | |
688 | int key_status; | |
689 | ||
690 | regmap_read(regmap, NAU8825_REG_INT_CLR_KEY_STATUS, | |
691 | &key_status); | |
692 | ||
693 | /* upper 8 bits of the register are for short pressed keys, | |
694 | * lower 8 bits - for long pressed buttons | |
695 | */ | |
696 | nau8825->button_pressed = nau8825_button_decode( | |
697 | key_status >> 8); | |
698 | ||
699 | event |= nau8825->button_pressed; | |
700 | event_mask |= NAU8825_BUTTONS; | |
701 | clear_irq = NAU8825_KEY_SHORT_PRESS_IRQ; | |
702 | } else if (active_irq & NAU8825_KEY_RELEASE_IRQ) { | |
703 | event_mask = NAU8825_BUTTONS; | |
704 | clear_irq = NAU8825_KEY_RELEASE_IRQ; | |
705 | } else if (active_irq & NAU8825_HEADSET_COMPLETION_IRQ) { | |
706 | if (nau8825_is_jack_inserted(regmap)) { | |
707 | event |= nau8825_jack_insert(nau8825); | |
708 | } else { | |
709 | dev_warn(nau8825->dev, "Headset completion IRQ fired but no headset connected\n"); | |
710 | nau8825_eject_jack(nau8825); | |
711 | } | |
712 | ||
713 | event_mask |= SND_JACK_HEADSET; | |
714 | clear_irq = NAU8825_HEADSET_COMPLETION_IRQ; | |
715 | } | |
716 | ||
717 | if (!clear_irq) | |
718 | clear_irq = active_irq; | |
719 | /* clears the rightmost interruption */ | |
720 | regmap_write(regmap, NAU8825_REG_INT_CLR_KEY_STATUS, clear_irq); | |
721 | ||
722 | if (event_mask) | |
723 | snd_soc_jack_report(nau8825->jack, event, event_mask); | |
724 | ||
725 | return IRQ_HANDLED; | |
726 | } | |
727 | ||
728 | static void nau8825_setup_buttons(struct nau8825 *nau8825) | |
729 | { | |
730 | struct regmap *regmap = nau8825->regmap; | |
731 | ||
732 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
733 | NAU8825_SAR_TRACKING_GAIN_MASK, | |
734 | nau8825->sar_voltage << NAU8825_SAR_TRACKING_GAIN_SFT); | |
735 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
736 | NAU8825_SAR_COMPARE_TIME_MASK, | |
737 | nau8825->sar_compare_time << NAU8825_SAR_COMPARE_TIME_SFT); | |
738 | regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL, | |
739 | NAU8825_SAR_SAMPLING_TIME_MASK, | |
740 | nau8825->sar_sampling_time << NAU8825_SAR_SAMPLING_TIME_SFT); | |
741 | ||
742 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
743 | NAU8825_KEYDET_LEVELS_NR_MASK, | |
744 | (nau8825->sar_threshold_num - 1) << NAU8825_KEYDET_LEVELS_NR_SFT); | |
745 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
746 | NAU8825_KEYDET_HYSTERESIS_MASK, | |
747 | nau8825->sar_hysteresis << NAU8825_KEYDET_HYSTERESIS_SFT); | |
748 | regmap_update_bits(regmap, NAU8825_REG_KEYDET_CTRL, | |
749 | NAU8825_KEYDET_SHORTKEY_DEBOUNCE_MASK, | |
750 | nau8825->key_debounce << NAU8825_KEYDET_SHORTKEY_DEBOUNCE_SFT); | |
751 | ||
752 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_1, | |
753 | (nau8825->sar_threshold[0] << 8) | nau8825->sar_threshold[1]); | |
754 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_2, | |
755 | (nau8825->sar_threshold[2] << 8) | nau8825->sar_threshold[3]); | |
756 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_3, | |
757 | (nau8825->sar_threshold[4] << 8) | nau8825->sar_threshold[5]); | |
758 | regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_4, | |
759 | (nau8825->sar_threshold[6] << 8) | nau8825->sar_threshold[7]); | |
760 | ||
761 | /* Enable short press and release interruptions */ | |
762 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
763 | NAU8825_IRQ_KEY_SHORT_PRESS_EN | NAU8825_IRQ_KEY_RELEASE_EN, | |
764 | 0); | |
765 | } | |
766 | ||
767 | static void nau8825_init_regs(struct nau8825 *nau8825) | |
768 | { | |
769 | struct regmap *regmap = nau8825->regmap; | |
770 | ||
771 | /* Enable Bias/Vmid */ | |
772 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BIAS_ADJ, | |
773 | NAU8825_BIAS_VMID, NAU8825_BIAS_VMID); | |
774 | regmap_update_bits(nau8825->regmap, NAU8825_REG_BOOST, | |
775 | NAU8825_GLOBAL_BIAS_EN, NAU8825_GLOBAL_BIAS_EN); | |
776 | ||
777 | /* VMID Tieoff */ | |
778 | regmap_update_bits(regmap, NAU8825_REG_BIAS_ADJ, | |
779 | NAU8825_BIAS_VMID_SEL_MASK, | |
780 | nau8825->vref_impedance << NAU8825_BIAS_VMID_SEL_SFT); | |
781 | /* Disable Boost Driver, Automatic Short circuit protection enable */ | |
782 | regmap_update_bits(regmap, NAU8825_REG_BOOST, | |
783 | NAU8825_PRECHARGE_DIS | NAU8825_HP_BOOST_G_DIS | | |
784 | NAU8825_SHORT_SHUTDOWN_EN, | |
785 | NAU8825_PRECHARGE_DIS | NAU8825_HP_BOOST_G_DIS | | |
786 | NAU8825_SHORT_SHUTDOWN_EN); | |
787 | ||
788 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
789 | NAU8825_JKDET_OUTPUT_EN, | |
790 | nau8825->jkdet_enable ? 0 : NAU8825_JKDET_OUTPUT_EN); | |
791 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
792 | NAU8825_JKDET_PULL_EN, | |
793 | nau8825->jkdet_pull_enable ? 0 : NAU8825_JKDET_PULL_EN); | |
794 | regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL, | |
795 | NAU8825_JKDET_PULL_UP, | |
796 | nau8825->jkdet_pull_up ? NAU8825_JKDET_PULL_UP : 0); | |
797 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
798 | NAU8825_JACK_POLARITY, | |
799 | /* jkdet_polarity - 1 is for active-low */ | |
800 | nau8825->jkdet_polarity ? 0 : NAU8825_JACK_POLARITY); | |
801 | ||
802 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
803 | NAU8825_JACK_INSERT_DEBOUNCE_MASK, | |
804 | nau8825->jack_insert_debounce << NAU8825_JACK_INSERT_DEBOUNCE_SFT); | |
805 | regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL, | |
806 | NAU8825_JACK_EJECT_DEBOUNCE_MASK, | |
807 | nau8825->jack_eject_debounce << NAU8825_JACK_EJECT_DEBOUNCE_SFT); | |
808 | ||
809 | /* Mask unneeded IRQs: 1 - disable, 0 - enable */ | |
810 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, 0x7ff, 0x7ff); | |
811 | ||
812 | regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS, | |
813 | NAU8825_MICBIAS_VOLTAGE_MASK, nau8825->micbias_voltage); | |
814 | ||
815 | if (nau8825->sar_threshold_num) | |
816 | nau8825_setup_buttons(nau8825); | |
817 | ||
818 | /* Default oversampling/decimations settings are unusable | |
819 | * (audible hiss). Set it to something better. | |
820 | */ | |
821 | regmap_update_bits(regmap, NAU8825_REG_ADC_RATE, | |
822 | NAU8825_ADC_SYNC_DOWN_MASK, NAU8825_ADC_SYNC_DOWN_128); | |
823 | regmap_update_bits(regmap, NAU8825_REG_DAC_CTRL1, | |
824 | NAU8825_DAC_OVERSAMPLE_MASK, NAU8825_DAC_OVERSAMPLE_128); | |
825 | } | |
826 | ||
827 | static const struct regmap_config nau8825_regmap_config = { | |
828 | .val_bits = 16, | |
829 | .reg_bits = 16, | |
830 | ||
831 | .max_register = NAU8825_REG_MAX, | |
832 | .readable_reg = nau8825_readable_reg, | |
833 | .writeable_reg = nau8825_writeable_reg, | |
834 | .volatile_reg = nau8825_volatile_reg, | |
835 | ||
836 | .cache_type = REGCACHE_RBTREE, | |
837 | .reg_defaults = nau8825_reg_defaults, | |
838 | .num_reg_defaults = ARRAY_SIZE(nau8825_reg_defaults), | |
839 | }; | |
840 | ||
841 | static int nau8825_codec_probe(struct snd_soc_codec *codec) | |
842 | { | |
843 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
844 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); | |
845 | ||
846 | nau8825->dapm = dapm; | |
847 | ||
848 | /* The interrupt clock is gated by x1[10:8], | |
849 | * one of them needs to be enabled all the time for | |
850 | * interrupts to happen. | |
851 | */ | |
852 | snd_soc_dapm_force_enable_pin(dapm, "DDACR"); | |
853 | snd_soc_dapm_sync(dapm); | |
854 | ||
855 | /* Unmask interruptions. Handler uses dapm object so we can enable | |
856 | * interruptions only after dapm is fully initialized. | |
857 | */ | |
858 | regmap_write(nau8825->regmap, NAU8825_REG_INTERRUPT_DIS_CTRL, 0); | |
859 | nau8825_restart_jack_detection(nau8825->regmap); | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
c86ba612 BZ |
864 | /** |
865 | * nau8825_calc_fll_param - Calculate FLL parameters. | |
866 | * @fll_in: external clock provided to codec. | |
867 | * @fs: sampling rate. | |
868 | * @fll_param: Pointer to structure of FLL parameters. | |
869 | * | |
870 | * Calculate FLL parameters to configure codec. | |
871 | * | |
872 | * Returns 0 for success or negative error code. | |
873 | */ | |
874 | static int nau8825_calc_fll_param(unsigned int fll_in, unsigned int fs, | |
875 | struct nau8825_fll *fll_param) | |
876 | { | |
877 | u64 fvco; | |
878 | unsigned int fref, i; | |
879 | ||
880 | /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by dividing | |
881 | * freq_in by 1, 2, 4, or 8 using FLL pre-scalar. | |
882 | * FREF = freq_in / NAU8825_FLL_REF_DIV_MASK | |
883 | */ | |
884 | for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) { | |
885 | fref = fll_in / fll_pre_scalar[i].param; | |
886 | if (fref <= NAU_FREF_MAX) | |
887 | break; | |
888 | } | |
889 | if (i == ARRAY_SIZE(fll_pre_scalar)) | |
890 | return -EINVAL; | |
891 | fll_param->clk_ref_div = fll_pre_scalar[i].val; | |
892 | ||
893 | /* Choose the FLL ratio based on FREF */ | |
894 | for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) { | |
895 | if (fref >= fll_ratio[i].param) | |
896 | break; | |
897 | } | |
898 | if (i == ARRAY_SIZE(fll_ratio)) | |
899 | return -EINVAL; | |
900 | fll_param->ratio = fll_ratio[i].val; | |
901 | ||
902 | /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs. | |
903 | * FDCO must be within the 90MHz - 100MHz or the FFL cannot be | |
904 | * guaranteed across the full range of operation. | |
905 | * FDCO = freq_out * 2 * mclk_src_scaling | |
906 | */ | |
907 | for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) { | |
908 | fvco = 256 * fs * 2 * mclk_src_scaling[i].param; | |
909 | if (NAU_FVCO_MIN < fvco && fvco < NAU_FVCO_MAX) | |
910 | break; | |
911 | } | |
912 | if (i == ARRAY_SIZE(mclk_src_scaling)) | |
913 | return -EINVAL; | |
914 | fll_param->mclk_src = mclk_src_scaling[i].val; | |
915 | ||
916 | /* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional | |
917 | * input based on FDCO, FREF and FLL ratio. | |
918 | */ | |
919 | fvco = div_u64(fvco << 16, fref * fll_param->ratio); | |
920 | fll_param->fll_int = (fvco >> 16) & 0x3FF; | |
921 | fll_param->fll_frac = fvco & 0xFFFF; | |
922 | return 0; | |
923 | } | |
924 | ||
925 | static void nau8825_fll_apply(struct nau8825 *nau8825, | |
926 | struct nau8825_fll *fll_param) | |
927 | { | |
928 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
929 | NAU8825_CLK_MCLK_SRC_MASK, fll_param->mclk_src); | |
930 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL1, | |
931 | NAU8825_FLL_RATIO_MASK, fll_param->ratio); | |
932 | /* FLL 16-bit fractional input */ | |
933 | regmap_write(nau8825->regmap, NAU8825_REG_FLL2, fll_param->fll_frac); | |
934 | /* FLL 10-bit integer input */ | |
935 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL3, | |
936 | NAU8825_FLL_INTEGER_MASK, fll_param->fll_int); | |
937 | /* FLL pre-scaler */ | |
938 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL4, | |
939 | NAU8825_FLL_REF_DIV_MASK, fll_param->clk_ref_div); | |
940 | /* select divided VCO input */ | |
941 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL5, | |
942 | NAU8825_FLL_FILTER_SW_MASK, 0x0000); | |
943 | /* FLL sigma delta modulator enable */ | |
944 | regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL6, | |
945 | NAU8825_SDM_EN_MASK, NAU8825_SDM_EN); | |
946 | } | |
947 | ||
948 | /* freq_out must be 256*Fs in order to achieve the best performance */ | |
949 | static int nau8825_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
950 | unsigned int freq_in, unsigned int freq_out) | |
951 | { | |
952 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
953 | struct nau8825_fll fll_param; | |
954 | int ret, fs; | |
955 | ||
956 | fs = freq_out / 256; | |
957 | ret = nau8825_calc_fll_param(freq_in, fs, &fll_param); | |
958 | if (ret < 0) { | |
959 | dev_err(codec->dev, "Unsupported input clock %d\n", freq_in); | |
960 | return ret; | |
961 | } | |
962 | dev_dbg(codec->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n", | |
963 | fll_param.mclk_src, fll_param.ratio, fll_param.fll_frac, | |
964 | fll_param.fll_int, fll_param.clk_ref_div); | |
965 | ||
966 | nau8825_fll_apply(nau8825, &fll_param); | |
967 | mdelay(2); | |
968 | regmap_update_bits(nau8825->regmap, NAU8825_REG_CLK_DIVIDER, | |
969 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_VCO); | |
970 | return 0; | |
971 | } | |
972 | ||
34ca27f3 AP |
973 | static int nau8825_configure_sysclk(struct nau8825 *nau8825, int clk_id, |
974 | unsigned int freq) | |
975 | { | |
976 | struct regmap *regmap = nau8825->regmap; | |
977 | int ret; | |
978 | ||
979 | switch (clk_id) { | |
980 | case NAU8825_CLK_MCLK: | |
981 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
982 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_MCLK); | |
983 | regmap_update_bits(regmap, NAU8825_REG_FLL6, NAU8825_DCO_EN, 0); | |
984 | ||
985 | /* We selected MCLK source but the clock itself managed externally */ | |
986 | if (!nau8825->mclk) | |
987 | break; | |
988 | ||
989 | if (!nau8825->mclk_freq) { | |
990 | ret = clk_prepare_enable(nau8825->mclk); | |
991 | if (ret) { | |
992 | dev_err(nau8825->dev, "Unable to prepare codec mclk\n"); | |
993 | return ret; | |
994 | } | |
995 | } | |
996 | ||
997 | if (nau8825->mclk_freq != freq) { | |
998 | nau8825->mclk_freq = freq; | |
999 | ||
1000 | freq = clk_round_rate(nau8825->mclk, freq); | |
1001 | ret = clk_set_rate(nau8825->mclk, freq); | |
1002 | if (ret) { | |
1003 | dev_err(nau8825->dev, "Unable to set mclk rate\n"); | |
1004 | return ret; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | break; | |
1009 | case NAU8825_CLK_INTERNAL: | |
1010 | regmap_update_bits(regmap, NAU8825_REG_FLL6, NAU8825_DCO_EN, | |
1011 | NAU8825_DCO_EN); | |
1012 | regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER, | |
1013 | NAU8825_CLK_SRC_MASK, NAU8825_CLK_SRC_VCO); | |
1014 | ||
1015 | if (nau8825->mclk_freq) { | |
1016 | clk_disable_unprepare(nau8825->mclk); | |
1017 | nau8825->mclk_freq = 0; | |
1018 | } | |
1019 | ||
1020 | break; | |
1021 | default: | |
1022 | dev_err(nau8825->dev, "Invalid clock id (%d)\n", clk_id); | |
1023 | return -EINVAL; | |
1024 | } | |
1025 | ||
1026 | dev_dbg(nau8825->dev, "Sysclk is %dHz and clock id is %d\n", freq, | |
1027 | clk_id); | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | static int nau8825_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
1032 | int source, unsigned int freq, int dir) | |
1033 | { | |
1034 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1035 | ||
1036 | return nau8825_configure_sysclk(nau8825, clk_id, freq); | |
1037 | } | |
1038 | ||
1039 | static int nau8825_set_bias_level(struct snd_soc_codec *codec, | |
1040 | enum snd_soc_bias_level level) | |
1041 | { | |
1042 | struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec); | |
1043 | int ret; | |
1044 | ||
1045 | switch (level) { | |
1046 | case SND_SOC_BIAS_ON: | |
1047 | break; | |
1048 | ||
1049 | case SND_SOC_BIAS_PREPARE: | |
1050 | break; | |
1051 | ||
1052 | case SND_SOC_BIAS_STANDBY: | |
1053 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { | |
1054 | if (nau8825->mclk_freq) { | |
1055 | ret = clk_prepare_enable(nau8825->mclk); | |
1056 | if (ret) { | |
1057 | dev_err(nau8825->dev, "Unable to prepare codec mclk\n"); | |
1058 | return ret; | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | ret = regcache_sync(nau8825->regmap); | |
1063 | if (ret) { | |
1064 | dev_err(codec->dev, | |
1065 | "Failed to sync cache: %d\n", ret); | |
1066 | return ret; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | break; | |
1071 | ||
1072 | case SND_SOC_BIAS_OFF: | |
1073 | if (nau8825->mclk_freq) | |
1074 | clk_disable_unprepare(nau8825->mclk); | |
1075 | ||
1076 | regcache_mark_dirty(nau8825->regmap); | |
1077 | break; | |
1078 | } | |
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | static struct snd_soc_codec_driver nau8825_codec_driver = { | |
1083 | .probe = nau8825_codec_probe, | |
1084 | .set_sysclk = nau8825_set_sysclk, | |
c86ba612 | 1085 | .set_pll = nau8825_set_pll, |
34ca27f3 AP |
1086 | .set_bias_level = nau8825_set_bias_level, |
1087 | .suspend_bias_off = true, | |
1088 | ||
1089 | .controls = nau8825_controls, | |
1090 | .num_controls = ARRAY_SIZE(nau8825_controls), | |
1091 | .dapm_widgets = nau8825_dapm_widgets, | |
1092 | .num_dapm_widgets = ARRAY_SIZE(nau8825_dapm_widgets), | |
1093 | .dapm_routes = nau8825_dapm_routes, | |
1094 | .num_dapm_routes = ARRAY_SIZE(nau8825_dapm_routes), | |
1095 | }; | |
1096 | ||
1097 | static void nau8825_reset_chip(struct regmap *regmap) | |
1098 | { | |
1099 | regmap_write(regmap, NAU8825_REG_RESET, 0x00); | |
1100 | regmap_write(regmap, NAU8825_REG_RESET, 0x00); | |
1101 | } | |
1102 | ||
218d2ce2 BZ |
1103 | static void nau8825_print_device_properties(struct nau8825 *nau8825) |
1104 | { | |
1105 | int i; | |
1106 | struct device *dev = nau8825->dev; | |
1107 | ||
1108 | dev_dbg(dev, "jkdet-enable: %d\n", nau8825->jkdet_enable); | |
1109 | dev_dbg(dev, "jkdet-pull-enable: %d\n", nau8825->jkdet_pull_enable); | |
1110 | dev_dbg(dev, "jkdet-pull-up: %d\n", nau8825->jkdet_pull_up); | |
1111 | dev_dbg(dev, "jkdet-polarity: %d\n", nau8825->jkdet_polarity); | |
1112 | dev_dbg(dev, "micbias-voltage: %d\n", nau8825->micbias_voltage); | |
1113 | dev_dbg(dev, "vref-impedance: %d\n", nau8825->vref_impedance); | |
1114 | ||
1115 | dev_dbg(dev, "sar-threshold-num: %d\n", nau8825->sar_threshold_num); | |
1116 | for (i = 0; i < nau8825->sar_threshold_num; i++) | |
1117 | dev_dbg(dev, "sar-threshold[%d]=%d\n", i, | |
1118 | nau8825->sar_threshold[i]); | |
1119 | ||
1120 | dev_dbg(dev, "sar-hysteresis: %d\n", nau8825->sar_hysteresis); | |
1121 | dev_dbg(dev, "sar-voltage: %d\n", nau8825->sar_voltage); | |
1122 | dev_dbg(dev, "sar-compare-time: %d\n", nau8825->sar_compare_time); | |
1123 | dev_dbg(dev, "sar-sampling-time: %d\n", nau8825->sar_sampling_time); | |
1124 | dev_dbg(dev, "short-key-debounce: %d\n", nau8825->key_debounce); | |
1125 | dev_dbg(dev, "jack-insert-debounce: %d\n", | |
1126 | nau8825->jack_insert_debounce); | |
1127 | dev_dbg(dev, "jack-eject-debounce: %d\n", | |
1128 | nau8825->jack_eject_debounce); | |
1129 | } | |
1130 | ||
34ca27f3 AP |
1131 | static int nau8825_read_device_properties(struct device *dev, |
1132 | struct nau8825 *nau8825) { | |
1133 | ||
1134 | nau8825->jkdet_enable = device_property_read_bool(dev, | |
1135 | "nuvoton,jkdet-enable"); | |
1136 | nau8825->jkdet_pull_enable = device_property_read_bool(dev, | |
1137 | "nuvoton,jkdet-pull-enable"); | |
1138 | nau8825->jkdet_pull_up = device_property_read_bool(dev, | |
1139 | "nuvoton,jkdet-pull-up"); | |
1140 | device_property_read_u32(dev, "nuvoton,jkdet-polarity", | |
1141 | &nau8825->jkdet_polarity); | |
1142 | device_property_read_u32(dev, "nuvoton,micbias-voltage", | |
1143 | &nau8825->micbias_voltage); | |
1144 | device_property_read_u32(dev, "nuvoton,vref-impedance", | |
1145 | &nau8825->vref_impedance); | |
1146 | device_property_read_u32(dev, "nuvoton,sar-threshold-num", | |
1147 | &nau8825->sar_threshold_num); | |
1148 | device_property_read_u32_array(dev, "nuvoton,sar-threshold", | |
1149 | nau8825->sar_threshold, nau8825->sar_threshold_num); | |
1150 | device_property_read_u32(dev, "nuvoton,sar-hysteresis", | |
1151 | &nau8825->sar_hysteresis); | |
1152 | device_property_read_u32(dev, "nuvoton,sar-voltage", | |
1153 | &nau8825->sar_voltage); | |
1154 | device_property_read_u32(dev, "nuvoton,sar-compare-time", | |
1155 | &nau8825->sar_compare_time); | |
1156 | device_property_read_u32(dev, "nuvoton,sar-sampling-time", | |
1157 | &nau8825->sar_sampling_time); | |
1158 | device_property_read_u32(dev, "nuvoton,short-key-debounce", | |
1159 | &nau8825->key_debounce); | |
1160 | device_property_read_u32(dev, "nuvoton,jack-insert-debounce", | |
1161 | &nau8825->jack_insert_debounce); | |
1162 | device_property_read_u32(dev, "nuvoton,jack-eject-debounce", | |
1163 | &nau8825->jack_eject_debounce); | |
1164 | ||
1165 | nau8825->mclk = devm_clk_get(dev, "mclk"); | |
1166 | if (PTR_ERR(nau8825->mclk) == -EPROBE_DEFER) { | |
1167 | return -EPROBE_DEFER; | |
1168 | } else if (PTR_ERR(nau8825->mclk) == -ENOENT) { | |
1169 | /* The MCLK is managed externally or not used at all */ | |
1170 | nau8825->mclk = NULL; | |
1171 | dev_info(dev, "No 'mclk' clock found, assume MCLK is managed externally"); | |
1172 | } else if (IS_ERR(nau8825->mclk)) { | |
1173 | return -EINVAL; | |
1174 | } | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | static int nau8825_setup_irq(struct nau8825 *nau8825) | |
1180 | { | |
1181 | struct regmap *regmap = nau8825->regmap; | |
1182 | int ret; | |
1183 | ||
1184 | /* IRQ Output Enable */ | |
1185 | regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, | |
1186 | NAU8825_IRQ_OUTPUT_EN, NAU8825_IRQ_OUTPUT_EN); | |
1187 | ||
1188 | /* Enable internal VCO needed for interruptions */ | |
1189 | nau8825_configure_sysclk(nau8825, NAU8825_CLK_INTERNAL, 0); | |
1190 | ||
1191 | /* Enable DDACR needed for interrupts | |
1192 | * It is the same as force_enable_pin("DDACR") we do later | |
1193 | */ | |
1194 | regmap_update_bits(regmap, NAU8825_REG_ENA_CTRL, | |
1195 | NAU8825_ENABLE_DACR, NAU8825_ENABLE_DACR); | |
1196 | ||
1197 | /* Chip needs one FSCLK cycle in order to generate interrupts, | |
1198 | * as we cannot guarantee one will be provided by the system. Turning | |
1199 | * master mode on then off enables us to generate that FSCLK cycle | |
1200 | * with a minimum of contention on the clock bus. | |
1201 | */ | |
1202 | regmap_update_bits(regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
1203 | NAU8825_I2S_MS_MASK, NAU8825_I2S_MS_MASTER); | |
1204 | regmap_update_bits(regmap, NAU8825_REG_I2S_PCM_CTRL2, | |
1205 | NAU8825_I2S_MS_MASK, NAU8825_I2S_MS_SLAVE); | |
1206 | ||
1207 | ret = devm_request_threaded_irq(nau8825->dev, nau8825->irq, NULL, | |
1208 | nau8825_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT, | |
1209 | "nau8825", nau8825); | |
1210 | ||
1211 | if (ret) { | |
1212 | dev_err(nau8825->dev, "Cannot request irq %d (%d)\n", | |
1213 | nau8825->irq, ret); | |
1214 | return ret; | |
1215 | } | |
1216 | ||
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | static int nau8825_i2c_probe(struct i2c_client *i2c, | |
1221 | const struct i2c_device_id *id) | |
1222 | { | |
1223 | struct device *dev = &i2c->dev; | |
1224 | struct nau8825 *nau8825 = dev_get_platdata(&i2c->dev); | |
1225 | int ret, value; | |
1226 | ||
1227 | if (!nau8825) { | |
1228 | nau8825 = devm_kzalloc(dev, sizeof(*nau8825), GFP_KERNEL); | |
1229 | if (!nau8825) | |
1230 | return -ENOMEM; | |
1231 | ret = nau8825_read_device_properties(dev, nau8825); | |
1232 | if (ret) | |
1233 | return ret; | |
1234 | } | |
1235 | ||
1236 | i2c_set_clientdata(i2c, nau8825); | |
1237 | ||
1238 | nau8825->regmap = devm_regmap_init_i2c(i2c, &nau8825_regmap_config); | |
1239 | if (IS_ERR(nau8825->regmap)) | |
1240 | return PTR_ERR(nau8825->regmap); | |
1241 | nau8825->dev = dev; | |
1242 | nau8825->irq = i2c->irq; | |
1243 | ||
218d2ce2 BZ |
1244 | nau8825_print_device_properties(nau8825); |
1245 | ||
34ca27f3 AP |
1246 | nau8825_reset_chip(nau8825->regmap); |
1247 | ret = regmap_read(nau8825->regmap, NAU8825_REG_I2C_DEVICE_ID, &value); | |
1248 | if (ret < 0) { | |
1249 | dev_err(dev, "Failed to read device id from the NAU8825: %d\n", | |
1250 | ret); | |
1251 | return ret; | |
1252 | } | |
1253 | if ((value & NAU8825_SOFTWARE_ID_MASK) != | |
1254 | NAU8825_SOFTWARE_ID_NAU8825) { | |
1255 | dev_err(dev, "Not a NAU8825 chip\n"); | |
1256 | return -ENODEV; | |
1257 | } | |
1258 | ||
1259 | nau8825_init_regs(nau8825); | |
1260 | ||
1261 | if (i2c->irq) | |
1262 | nau8825_setup_irq(nau8825); | |
1263 | ||
1264 | return snd_soc_register_codec(&i2c->dev, &nau8825_codec_driver, | |
1265 | &nau8825_dai, 1); | |
1266 | } | |
1267 | ||
1268 | static int nau8825_i2c_remove(struct i2c_client *client) | |
1269 | { | |
1270 | snd_soc_unregister_codec(&client->dev); | |
1271 | return 0; | |
1272 | } | |
1273 | ||
1274 | static const struct i2c_device_id nau8825_i2c_ids[] = { | |
1275 | { "nau8825", 0 }, | |
1276 | { } | |
1277 | }; | |
1278 | ||
1279 | #ifdef CONFIG_OF | |
1280 | static const struct of_device_id nau8825_of_ids[] = { | |
1281 | { .compatible = "nuvoton,nau8825", }, | |
1282 | {} | |
1283 | }; | |
1284 | MODULE_DEVICE_TABLE(of, nau8825_of_ids); | |
1285 | #endif | |
1286 | ||
b3681308 FY |
1287 | #ifdef CONFIG_ACPI |
1288 | static const struct acpi_device_id nau8825_acpi_match[] = { | |
1289 | { "10508825", 0 }, | |
1290 | {}, | |
1291 | }; | |
1292 | MODULE_DEVICE_TABLE(acpi, nau8825_acpi_match); | |
1293 | #endif | |
1294 | ||
34ca27f3 AP |
1295 | static struct i2c_driver nau8825_driver = { |
1296 | .driver = { | |
1297 | .name = "nau8825", | |
34ca27f3 | 1298 | .of_match_table = of_match_ptr(nau8825_of_ids), |
b3681308 | 1299 | .acpi_match_table = ACPI_PTR(nau8825_acpi_match), |
34ca27f3 AP |
1300 | }, |
1301 | .probe = nau8825_i2c_probe, | |
1302 | .remove = nau8825_i2c_remove, | |
1303 | .id_table = nau8825_i2c_ids, | |
1304 | }; | |
1305 | module_i2c_driver(nau8825_driver); | |
1306 | ||
1307 | MODULE_DESCRIPTION("ASoC nau8825 driver"); | |
1308 | MODULE_AUTHOR("Anatol Pomozov <anatol@chromium.org>"); | |
1309 | MODULE_LICENSE("GPL"); |