1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // nau8822.c -- NAU8822 ALSA Soc Audio driver
4 //
5 // Copyright 2017 Nuvoton Technology Crop.
6 //
7 // Author: David Lin <ctlin0@nuvoton.com>
8 // Co-author: John Hsu <kchsu0@nuvoton.com>
9 // Co-author: Seven Li <wtli@nuvoton.com>
10 //
11 // Based on WM8974.c
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/clk.h>
18 #include <linux/delay.h>
19 #include <linux/pm.h>
20 #include <linux/i2c.h>
21 #include <linux/regmap.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/initval.h>
28 #include <sound/tlv.h>
29 #include <asm/div64.h>
30 #include "nau8822.h"
31
32 #define NAU_PLL_FREQ_MAX 100000000
33 #define NAU_PLL_FREQ_MIN 90000000
34 #define NAU_PLL_REF_MAX 33000000
35 #define NAU_PLL_REF_MIN 8000000
36 #define NAU_PLL_OPTOP_MIN 6
37
38 static const int nau8822_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 };
39
40 static const struct reg_default nau8822_reg_defaults[] = {
41 { NAU8822_REG_POWER_MANAGEMENT_1, 0x0000 },
42 { NAU8822_REG_POWER_MANAGEMENT_2, 0x0000 },
43 { NAU8822_REG_POWER_MANAGEMENT_3, 0x0000 },
44 { NAU8822_REG_AUDIO_INTERFACE, 0x0050 },
45 { NAU8822_REG_COMPANDING_CONTROL, 0x0000 },
46 { NAU8822_REG_CLOCKING, 0x0140 },
47 { NAU8822_REG_ADDITIONAL_CONTROL, 0x0000 },
48 { NAU8822_REG_GPIO_CONTROL, 0x0000 },
49 { NAU8822_REG_JACK_DETECT_CONTROL_1, 0x0000 },
50 { NAU8822_REG_DAC_CONTROL, 0x0000 },
51 { NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 0x00ff },
52 { NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0x00ff },
53 { NAU8822_REG_JACK_DETECT_CONTROL_2, 0x0000 },
54 { NAU8822_REG_ADC_CONTROL, 0x0100 },
55 { NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 0x00ff },
56 { NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0x00ff },
57 { NAU8822_REG_EQ1, 0x012c },
58 { NAU8822_REG_EQ2, 0x002c },
59 { NAU8822_REG_EQ3, 0x002c },
60 { NAU8822_REG_EQ4, 0x002c },
61 { NAU8822_REG_EQ5, 0x002c },
62 { NAU8822_REG_DAC_LIMITER_1, 0x0032 },
63 { NAU8822_REG_DAC_LIMITER_2, 0x0000 },
64 { NAU8822_REG_NOTCH_FILTER_1, 0x0000 },
65 { NAU8822_REG_NOTCH_FILTER_2, 0x0000 },
66 { NAU8822_REG_NOTCH_FILTER_3, 0x0000 },
67 { NAU8822_REG_NOTCH_FILTER_4, 0x0000 },
68 { NAU8822_REG_ALC_CONTROL_1, 0x0038 },
69 { NAU8822_REG_ALC_CONTROL_2, 0x000b },
70 { NAU8822_REG_ALC_CONTROL_3, 0x0032 },
71 { NAU8822_REG_NOISE_GATE, 0x0010 },
72 { NAU8822_REG_PLL_N, 0x0008 },
73 { NAU8822_REG_PLL_K1, 0x000c },
74 { NAU8822_REG_PLL_K2, 0x0093 },
75 { NAU8822_REG_PLL_K3, 0x00e9 },
76 { NAU8822_REG_3D_CONTROL, 0x0000 },
77 { NAU8822_REG_RIGHT_SPEAKER_CONTROL, 0x0000 },
78 { NAU8822_REG_INPUT_CONTROL, 0x0033 },
79 { NAU8822_REG_LEFT_INP_PGA_CONTROL, 0x0010 },
80 { NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0x0010 },
81 { NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 0x0100 },
82 { NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0x0100 },
83 { NAU8822_REG_OUTPUT_CONTROL, 0x0002 },
84 { NAU8822_REG_LEFT_MIXER_CONTROL, 0x0001 },
85 { NAU8822_REG_RIGHT_MIXER_CONTROL, 0x0001 },
86 { NAU8822_REG_LHP_VOLUME, 0x0039 },
87 { NAU8822_REG_RHP_VOLUME, 0x0039 },
88 { NAU8822_REG_LSPKOUT_VOLUME, 0x0039 },
89 { NAU8822_REG_RSPKOUT_VOLUME, 0x0039 },
90 { NAU8822_REG_AUX2_MIXER, 0x0001 },
91 { NAU8822_REG_AUX1_MIXER, 0x0001 },
92 { NAU8822_REG_POWER_MANAGEMENT_4, 0x0000 },
93 { NAU8822_REG_LEFT_TIME_SLOT, 0x0000 },
94 { NAU8822_REG_MISC, 0x0020 },
95 { NAU8822_REG_RIGHT_TIME_SLOT, 0x0000 },
96 { NAU8822_REG_DEVICE_REVISION, 0x007f },
97 { NAU8822_REG_DEVICE_ID, 0x001a },
98 { NAU8822_REG_DAC_DITHER, 0x0114 },
99 { NAU8822_REG_ALC_ENHANCE_1, 0x0000 },
100 { NAU8822_REG_ALC_ENHANCE_2, 0x0000 },
101 { NAU8822_REG_192KHZ_SAMPLING, 0x0008 },
102 { NAU8822_REG_MISC_CONTROL, 0x0000 },
103 { NAU8822_REG_INPUT_TIEOFF, 0x0000 },
104 { NAU8822_REG_POWER_REDUCTION, 0x0000 },
105 { NAU8822_REG_AGC_PEAK2PEAK, 0x0000 },
106 { NAU8822_REG_AGC_PEAK_DETECT, 0x0000 },
107 { NAU8822_REG_AUTOMUTE_CONTROL, 0x0000 },
108 { NAU8822_REG_OUTPUT_TIEOFF, 0x0000 },
109 };
110
111 static bool nau8822_readable_reg(struct device *dev, unsigned int reg)
112 {
113 switch (reg) {
114 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1:
115 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME:
116 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME:
117 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5:
118 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2:
119 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4:
120 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3:
121 case NAU8822_REG_3D_CONTROL:
122 case NAU8822_REG_RIGHT_SPEAKER_CONTROL:
123 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL:
124 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER:
125 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID:
126 case NAU8822_REG_DAC_DITHER:
127 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL:
128 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF:
129 return true;
130 default:
131 return false;
132 }
133 }
134
135 static bool nau8822_writeable_reg(struct device *dev, unsigned int reg)
136 {
137 switch (reg) {
138 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1:
139 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME:
140 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME:
141 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5:
142 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2:
143 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4:
144 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3:
145 case NAU8822_REG_3D_CONTROL:
146 case NAU8822_REG_RIGHT_SPEAKER_CONTROL:
147 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL:
148 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER:
149 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID:
150 case NAU8822_REG_DAC_DITHER:
151 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL:
152 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF:
153 return true;
154 default:
155 return false;
156 }
157 }
158
159 static bool nau8822_volatile(struct device *dev, unsigned int reg)
160 {
161 switch (reg) {
162 case NAU8822_REG_RESET:
163 case NAU8822_REG_DEVICE_REVISION:
164 case NAU8822_REG_DEVICE_ID:
165 case NAU8822_REG_AGC_PEAK2PEAK:
166 case NAU8822_REG_AGC_PEAK_DETECT:
167 case NAU8822_REG_AUTOMUTE_CONTROL:
168 return true;
169 default:
170 return false;
171 }
172 }
173
174 /* The EQ parameters get function is to get the 5 band equalizer control.
175 * The regmap raw read can't work here because regmap doesn't provide
176 * value format for value width of 9 bits. Therefore, the driver reads data
177 * from cache and makes value format according to the endianness of
178 * bytes type control element.
179 */
180 static int nau8822_eq_get(struct snd_kcontrol *kcontrol,
181 struct snd_ctl_elem_value *ucontrol)
182 {
183 struct snd_soc_component *component =
184 snd_soc_kcontrol_component(kcontrol);
185 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
186 int i, reg;
187 u16 reg_val, *val;
188 __be16 tmp;
189
190 val = (u16 *)ucontrol->value.bytes.data;
191 reg = NAU8822_REG_EQ1;
192 for (i = 0; i < params->max / sizeof(u16); i++) {
193 reg_val = snd_soc_component_read(component, reg + i);
194 /* conversion of 16-bit integers between native CPU format
195 * and big endian format
196 */
197 tmp = cpu_to_be16(reg_val);
198 memcpy(val + i, &tmp, sizeof(tmp));
199 }
200
201 return 0;
202 }
203
204 /* The EQ parameters put function is to make configuration of 5 band equalizer
205 * control. These configuration includes central frequency, equalizer gain,
206 * cut-off frequency, bandwidth control, and equalizer path.
207 * The regmap raw write can't work here because regmap doesn't provide
208 * register and value format for register with address 7 bits and value 9 bits.
209 * Therefore, the driver makes value format according to the endianness of
210 * bytes type control element and writes data to codec.
211 */
212 static int nau8822_eq_put(struct snd_kcontrol *kcontrol,
213 struct snd_ctl_elem_value *ucontrol)
214 {
215 struct snd_soc_component *component =
216 snd_soc_kcontrol_component(kcontrol);
217 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
218 void *data;
219 u16 *val, value;
220 int i, reg, ret;
221 __be16 *tmp;
222
223 data = kmemdup(ucontrol->value.bytes.data,
224 params->max, GFP_KERNEL | GFP_DMA);
225 if (!data)
226 return -ENOMEM;
227
228 val = (u16 *)data;
229 reg = NAU8822_REG_EQ1;
230 for (i = 0; i < params->max / sizeof(u16); i++) {
231 /* conversion of 16-bit integers between native CPU format
232 * and big endian format
233 */
234 tmp = (__be16 *)(val + i);
235 value = be16_to_cpup(tmp);
236 ret = snd_soc_component_write(component, reg + i, value);
237 if (ret) {
238 dev_err(component->dev,
239 "EQ configuration fail, register: %x ret: %d\n",
240 reg + i, ret);
241 kfree(data);
242 return ret;
243 }
244 }
245 kfree(data);
246
247 return 0;
248 }
249
250 static const char * const nau8822_companding[] = {
251 "Off", "NC", "u-law", "A-law"};
252
253 static const struct soc_enum nau8822_companding_adc_enum =
254 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT,
255 ARRAY_SIZE(nau8822_companding), nau8822_companding);
256
257 static const struct soc_enum nau8822_companding_dac_enum =
258 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT,
259 ARRAY_SIZE(nau8822_companding), nau8822_companding);
260
261 static const char * const nau8822_eqmode[] = {"Capture", "Playback"};
262
263 static const struct soc_enum nau8822_eqmode_enum =
264 SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT,
265 ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode);
266
267 static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"};
268 static const char * const nau8822_alc3[] = {"Normal", "Limiter"};
269
270 static const struct soc_enum nau8822_alc_enable_enum =
271 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT,
272 ARRAY_SIZE(nau8822_alc1), nau8822_alc1);
273
274 static const struct soc_enum nau8822_alc_mode_enum =
275 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT,
276 ARRAY_SIZE(nau8822_alc3), nau8822_alc3);
277
278 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
279 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
280 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
281 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
282 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1);
283 static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0);
284
285 static const struct snd_kcontrol_new nau8822_snd_controls[] = {
286 SOC_ENUM("ADC Companding", nau8822_companding_adc_enum),
287 SOC_ENUM("DAC Companding", nau8822_companding_dac_enum),
288
289 SOC_ENUM("EQ Function", nau8822_eqmode_enum),
290 SND_SOC_BYTES_EXT("EQ Parameters", 10,
291 nau8822_eq_get, nau8822_eq_put),
292
293 SOC_DOUBLE("DAC Inversion Switch",
294 NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0),
295 SOC_DOUBLE_R_TLV("PCM Volume",
296 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
297 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
298
299 SOC_SINGLE("High Pass Filter Switch",
300 NAU8822_REG_ADC_CONTROL, 8, 1, 0),
301 SOC_SINGLE("High Pass Cut Off",
302 NAU8822_REG_ADC_CONTROL, 4, 7, 0),
303
304 SOC_DOUBLE("ADC Inversion Switch",
305 NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0),
306 SOC_DOUBLE_R_TLV("ADC Volume",
307 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
308 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
309
310 SOC_SINGLE("DAC Limiter Switch",
311 NAU8822_REG_DAC_LIMITER_1, 8, 1, 0),
312 SOC_SINGLE("DAC Limiter Decay",
313 NAU8822_REG_DAC_LIMITER_1, 4, 15, 0),
314 SOC_SINGLE("DAC Limiter Attack",
315 NAU8822_REG_DAC_LIMITER_1, 0, 15, 0),
316 SOC_SINGLE("DAC Limiter Threshold",
317 NAU8822_REG_DAC_LIMITER_2, 4, 7, 0),
318 SOC_SINGLE_TLV("DAC Limiter Volume",
319 NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv),
320
321 SOC_ENUM("ALC Mode", nau8822_alc_mode_enum),
322 SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum),
323 SOC_SINGLE("ALC Min Gain",
324 NAU8822_REG_ALC_CONTROL_1, 0, 7, 0),
325 SOC_SINGLE("ALC Max Gain",
326 NAU8822_REG_ALC_CONTROL_1, 3, 7, 0),
327 SOC_SINGLE("ALC Hold",
328 NAU8822_REG_ALC_CONTROL_2, 4, 10, 0),
329 SOC_SINGLE("ALC Target",
330 NAU8822_REG_ALC_CONTROL_2, 0, 15, 0),
331 SOC_SINGLE("ALC Decay",
332 NAU8822_REG_ALC_CONTROL_3, 4, 10, 0),
333 SOC_SINGLE("ALC Attack",
334 NAU8822_REG_ALC_CONTROL_3, 0, 10, 0),
335 SOC_SINGLE("ALC Noise Gate Switch",
336 NAU8822_REG_NOISE_GATE, 3, 1, 0),
337 SOC_SINGLE("ALC Noise Gate Threshold",
338 NAU8822_REG_NOISE_GATE, 0, 7, 0),
339
340 SOC_DOUBLE_R("PGA ZC Switch",
341 NAU8822_REG_LEFT_INP_PGA_CONTROL,
342 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
343 7, 1, 0),
344 SOC_DOUBLE_R_TLV("PGA Volume",
345 NAU8822_REG_LEFT_INP_PGA_CONTROL,
346 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv),
347
348 SOC_DOUBLE_R("Headphone ZC Switch",
349 NAU8822_REG_LHP_VOLUME,
350 NAU8822_REG_RHP_VOLUME, 7, 1, 0),
351 SOC_DOUBLE_R("Headphone Playback Switch",
352 NAU8822_REG_LHP_VOLUME,
353 NAU8822_REG_RHP_VOLUME, 6, 1, 1),
354 SOC_DOUBLE_R_TLV("Headphone Volume",
355 NAU8822_REG_LHP_VOLUME,
356 NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv),
357
358 SOC_DOUBLE_R("Speaker ZC Switch",
359 NAU8822_REG_LSPKOUT_VOLUME,
360 NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0),
361 SOC_DOUBLE_R("Speaker Playback Switch",
362 NAU8822_REG_LSPKOUT_VOLUME,
363 NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1),
364 SOC_DOUBLE_R_TLV("Speaker Volume",
365 NAU8822_REG_LSPKOUT_VOLUME,
366 NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv),
367
368 SOC_DOUBLE_R("AUXOUT Playback Switch",
369 NAU8822_REG_AUX2_MIXER,
370 NAU8822_REG_AUX1_MIXER, 6, 1, 1),
371
372 SOC_DOUBLE_R_TLV("PGA Boost Volume",
373 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
374 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv),
375 SOC_DOUBLE_R_TLV("L2/R2 Boost Volume",
376 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
377 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv),
378 SOC_DOUBLE_R_TLV("Aux Boost Volume",
379 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
380 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv),
381
382 SOC_SINGLE("DAC 128x Oversampling Switch",
383 NAU8822_REG_DAC_CONTROL, 5, 1, 0),
384 SOC_SINGLE("ADC 128x Oversampling Switch",
385 NAU8822_REG_ADC_CONTROL, 5, 1, 0),
386 };
387
388 /* LMAIN and RMAIN Mixer */
389 static const struct snd_kcontrol_new nau8822_left_out_mixer[] = {
390 SOC_DAPM_SINGLE("LINMIX Switch",
391 NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0),
392 SOC_DAPM_SINGLE("LAUX Switch",
393 NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0),
394 SOC_DAPM_SINGLE("LDAC Switch",
395 NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0),
396 SOC_DAPM_SINGLE("RDAC Switch",
397 NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0),
398 };
399
400 static const struct snd_kcontrol_new nau8822_right_out_mixer[] = {
401 SOC_DAPM_SINGLE("RINMIX Switch",
402 NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0),
403 SOC_DAPM_SINGLE("RAUX Switch",
404 NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0),
405 SOC_DAPM_SINGLE("RDAC Switch",
406 NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0),
407 SOC_DAPM_SINGLE("LDAC Switch",
408 NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0),
409 };
410
411 /* AUX1 and AUX2 Mixer */
412 static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = {
413 SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0),
414 SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0),
415 SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0),
416 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0),
417 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0),
418 };
419
420 static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = {
421 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0),
422 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0),
423 SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0),
424 SOC_DAPM_SINGLE("AUX1MIX Output Switch",
425 NAU8822_REG_AUX2_MIXER, 3, 1, 0),
426 };
427
428 /* Input PGA */
429 static const struct snd_kcontrol_new nau8822_left_input_mixer[] = {
430 SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0),
431 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0),
432 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0),
433 };
434 static const struct snd_kcontrol_new nau8822_right_input_mixer[] = {
435 SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0),
436 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0),
437 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0),
438 };
439
440 /* Loopback Switch */
441 static const struct snd_kcontrol_new nau8822_loopback =
442 SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL,
443 NAU8822_ADDAP_SFT, 1, 0);
444
445 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source,
446 struct snd_soc_dapm_widget *sink)
447 {
448 struct snd_soc_component *component =
449 snd_soc_dapm_to_component(source->dapm);
450 unsigned int value;
451
452 value = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
453
454 return (value & NAU8822_CLKM_MASK);
455 }
456
457 static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = {
458 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
459 NAU8822_REG_POWER_MANAGEMENT_3, 0, 0),
460 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
461 NAU8822_REG_POWER_MANAGEMENT_3, 1, 0),
462 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture",
463 NAU8822_REG_POWER_MANAGEMENT_2, 0, 0),
464 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture",
465 NAU8822_REG_POWER_MANAGEMENT_2, 1, 0),
466
467 SOC_MIXER_ARRAY("Left Output Mixer",
468 NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer),
469 SOC_MIXER_ARRAY("Right Output Mixer",
470 NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer),
471 SOC_MIXER_ARRAY("AUX1 Output Mixer",
472 NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer),
473 SOC_MIXER_ARRAY("AUX2 Output Mixer",
474 NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer),
475
476 SOC_MIXER_ARRAY("Left Input Mixer",
477 NAU8822_REG_POWER_MANAGEMENT_2,
478 2, 0, nau8822_left_input_mixer),
479 SOC_MIXER_ARRAY("Right Input Mixer",
480 NAU8822_REG_POWER_MANAGEMENT_2,
481 3, 0, nau8822_right_input_mixer),
482
483 SND_SOC_DAPM_PGA("Left Boost Mixer",
484 NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
485 SND_SOC_DAPM_PGA("Right Boost Mixer",
486 NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
487
488 SND_SOC_DAPM_PGA("Left Capture PGA",
489 NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0),
490 SND_SOC_DAPM_PGA("Right Capture PGA",
491 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0),
492
493 SND_SOC_DAPM_PGA("Left Headphone Out",
494 NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
495 SND_SOC_DAPM_PGA("Right Headphone Out",
496 NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0),
497
498 SND_SOC_DAPM_PGA("Left Speaker Out",
499 NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0),
500 SND_SOC_DAPM_PGA("Right Speaker Out",
501 NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0),
502
503 SND_SOC_DAPM_PGA("AUX1 Out",
504 NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
505 SND_SOC_DAPM_PGA("AUX2 Out",
506 NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0),
507
508 SND_SOC_DAPM_SUPPLY("Mic Bias",
509 NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
510 SND_SOC_DAPM_SUPPLY("PLL",
511 NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
512
513 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0,
514 &nau8822_loopback),
515
516 SND_SOC_DAPM_INPUT("LMICN"),
517 SND_SOC_DAPM_INPUT("LMICP"),
518 SND_SOC_DAPM_INPUT("RMICN"),
519 SND_SOC_DAPM_INPUT("RMICP"),
520 SND_SOC_DAPM_INPUT("LAUX"),
521 SND_SOC_DAPM_INPUT("RAUX"),
522 SND_SOC_DAPM_INPUT("L2"),
523 SND_SOC_DAPM_INPUT("R2"),
524 SND_SOC_DAPM_OUTPUT("LHP"),
525 SND_SOC_DAPM_OUTPUT("RHP"),
526 SND_SOC_DAPM_OUTPUT("LSPK"),
527 SND_SOC_DAPM_OUTPUT("RSPK"),
528 SND_SOC_DAPM_OUTPUT("AUXOUT1"),
529 SND_SOC_DAPM_OUTPUT("AUXOUT2"),
530 };
531
532 static const struct snd_soc_dapm_route nau8822_dapm_routes[] = {
533 {"Right DAC", NULL, "PLL", check_mclk_select_pll},
534 {"Left DAC", NULL, "PLL", check_mclk_select_pll},
535
536 /* LMAIN and RMAIN Mixer */
537 {"Right Output Mixer", "LDAC Switch", "Left DAC"},
538 {"Right Output Mixer", "RDAC Switch", "Right DAC"},
539 {"Right Output Mixer", "RAUX Switch", "RAUX"},
540 {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
541
542 {"Left Output Mixer", "LDAC Switch", "Left DAC"},
543 {"Left Output Mixer", "RDAC Switch", "Right DAC"},
544 {"Left Output Mixer", "LAUX Switch", "LAUX"},
545 {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
546
547 /* AUX1 and AUX2 Mixer */
548 {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"},
549 {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"},
550 {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
551 {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"},
552 {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"},
553
554 {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"},
555 {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"},
556 {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
557 {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"},
558
559 /* Outputs */
560 {"Right Headphone Out", NULL, "Right Output Mixer"},
561 {"RHP", NULL, "Right Headphone Out"},
562
563 {"Left Headphone Out", NULL, "Left Output Mixer"},
564 {"LHP", NULL, "Left Headphone Out"},
565
566 {"Right Speaker Out", NULL, "Right Output Mixer"},
567 {"RSPK", NULL, "Right Speaker Out"},
568
569 {"Left Speaker Out", NULL, "Left Output Mixer"},
570 {"LSPK", NULL, "Left Speaker Out"},
571
572 {"AUX1 Out", NULL, "AUX1 Output Mixer"},
573 {"AUX2 Out", NULL, "AUX2 Output Mixer"},
574 {"AUXOUT1", NULL, "AUX1 Out"},
575 {"AUXOUT2", NULL, "AUX2 Out"},
576
577 /* Boost Mixer */
578 {"Right ADC", NULL, "PLL", check_mclk_select_pll},
579 {"Left ADC", NULL, "PLL", check_mclk_select_pll},
580
581 {"Right ADC", NULL, "Right Boost Mixer"},
582
583 {"Right Boost Mixer", NULL, "RAUX"},
584 {"Right Boost Mixer", NULL, "Right Capture PGA"},
585 {"Right Boost Mixer", NULL, "R2"},
586
587 {"Left ADC", NULL, "Left Boost Mixer"},
588
589 {"Left Boost Mixer", NULL, "LAUX"},
590 {"Left Boost Mixer", NULL, "Left Capture PGA"},
591 {"Left Boost Mixer", NULL, "L2"},
592
593 /* Input PGA */
594 {"Right Capture PGA", NULL, "Right Input Mixer"},
595 {"Left Capture PGA", NULL, "Left Input Mixer"},
596
597 /* Enable Microphone Power */
598 {"Right Capture PGA", NULL, "Mic Bias"},
599 {"Left Capture PGA", NULL, "Mic Bias"},
600
601 {"Right Input Mixer", "R2 Switch", "R2"},
602 {"Right Input Mixer", "MicN Switch", "RMICN"},
603 {"Right Input Mixer", "MicP Switch", "RMICP"},
604
605 {"Left Input Mixer", "L2 Switch", "L2"},
606 {"Left Input Mixer", "MicN Switch", "LMICN"},
607 {"Left Input Mixer", "MicP Switch", "LMICP"},
608
609 /* Digital Loopback */
610 {"Digital Loopback", "Switch", "Left ADC"},
611 {"Digital Loopback", "Switch", "Right ADC"},
612 {"Left DAC", NULL, "Digital Loopback"},
613 {"Right DAC", NULL, "Digital Loopback"},
614 };
615
616 static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs,
617 struct nau8822_pll *pll_param)
618 {
619 u64 f2, f2_max, pll_ratio;
620 int i, scal_sel;
621
622 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN)
623 return -EINVAL;
624 f2_max = 0;
625 scal_sel = ARRAY_SIZE(nau8822_mclk_scaler);
626
627 for (i = 0; i < scal_sel; i++) {
628 f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10;
629 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
630 f2_max < f2) {
631 f2_max = f2;
632 scal_sel = i;
633 }
634 }
635
636 if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel)
637 return -EINVAL;
638 pll_param->mclk_scaler = scal_sel;
639 f2 = f2_max;
640
641 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional
642 * input; round up the 24+4bit.
643 */
644 pll_ratio = div_u64(f2 << 28, pll_in);
645 pll_param->pre_factor = 0;
646 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) {
647 pll_ratio <<= 1;
648 pll_param->pre_factor = 1;
649 }
650 pll_param->pll_int = (pll_ratio >> 28) & 0xF;
651 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4);
652
653 return 0;
654 }
655
656 static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate)
657 {
658 struct snd_soc_component *component = dai->component;
659 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
660 struct nau8822_pll *pll = &nau8822->pll;
661 int i, sclk, imclk;
662
663 switch (nau8822->div_id) {
664 case NAU8822_CLK_MCLK:
665 /* Configure the master clock prescaler div to make system
666 * clock to approximate the internal master clock (IMCLK);
667 * and large or equal to IMCLK.
668 */
669 div = 0;
670 imclk = rate * 256;
671 for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) {
672 sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i];
673 if (sclk < imclk)
674 break;
675 div = i;
676 }
677 dev_dbg(component->dev, "master clock prescaler %x for fs %d\n",
678 div, rate);
679
680 /* master clock from MCLK and disable PLL */
681 snd_soc_component_update_bits(component,
682 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
683 (div << NAU8822_MCLKSEL_SFT));
684 snd_soc_component_update_bits(component,
685 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
686 NAU8822_CLKM_MCLK);
687 break;
688
689 case NAU8822_CLK_PLL:
690 /* master clock from PLL and enable PLL */
691 if (pll->mclk_scaler != div) {
692 dev_err(component->dev,
693 "master clock prescaler not meet PLL parameters\n");
694 return -EINVAL;
695 }
696 snd_soc_component_update_bits(component,
697 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
698 (div << NAU8822_MCLKSEL_SFT));
699 snd_soc_component_update_bits(component,
700 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
701 NAU8822_CLKM_PLL);
702 break;
703
704 default:
705 return -EINVAL;
706 }
707
708 return 0;
709 }
710
711 static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
712 unsigned int freq_in, unsigned int freq_out)
713 {
714 struct snd_soc_component *component = dai->component;
715 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
716 struct nau8822_pll *pll_param = &nau8822->pll;
717 int ret, fs;
718
719 if (freq_in == pll_param->freq_in &&
720 freq_out == pll_param->freq_out)
721 return 0;
722
723 if (freq_out == 0) {
724 dev_dbg(component->dev, "PLL disabled\n");
725 snd_soc_component_update_bits(component,
726 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF);
727 return 0;
728 }
729
730 fs = freq_out / 256;
731
732 ret = nau8822_calc_pll(freq_in, fs, pll_param);
733 if (ret < 0) {
734 dev_err(component->dev, "Unsupported input clock %d\n",
735 freq_in);
736 return ret;
737 }
738
739 dev_dbg(component->dev,
740 "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n",
741 pll_param->pll_int, pll_param->pll_frac,
742 pll_param->mclk_scaler, pll_param->pre_factor);
743
744 snd_soc_component_update_bits(component,
745 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF);
746 snd_soc_component_update_bits(component,
747 NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK,
748 (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) |
749 pll_param->pll_int);
750 snd_soc_component_write(component,
751 NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) &
752 NAU8822_PLLK1_MASK);
753 snd_soc_component_write(component,
754 NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) &
755 NAU8822_PLLK2_MASK);
756 snd_soc_component_write(component,
757 NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK);
758 snd_soc_component_update_bits(component,
759 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
760 pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT);
761 snd_soc_component_update_bits(component,
762 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL);
763 snd_soc_component_update_bits(component,
764 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_ON);
765
766 pll_param->freq_in = freq_in;
767 pll_param->freq_out = freq_out;
768
769 return 0;
770 }
771
772 static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
773 unsigned int freq, int dir)
774 {
775 struct snd_soc_component *component = dai->component;
776 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
777 unsigned long mclk_freq;
778
779 nau8822->div_id = clk_id;
780 nau8822->sysclk = freq;
781
782 if (nau8822->mclk) {
783 mclk_freq = clk_get_rate(nau8822->mclk);
784 if (mclk_freq != freq) {
785 int ret = nau8822_set_pll(dai, NAU8822_CLK_MCLK,
786 NAU8822_CLK_MCLK, mclk_freq, freq);
787 if (ret) {
788 dev_err(component->dev, "Failed to set PLL\n");
789 return ret;
790 }
791 nau8822->div_id = NAU8822_CLK_PLL;
792 }
793 }
794
795 dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq,
796 nau8822->div_id == NAU8822_CLK_PLL ? "PLL" : "MCLK");
797
798 return 0;
799 }
800
801 static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
802 {
803 struct snd_soc_component *component = dai->component;
804 u16 ctrl1_val = 0, ctrl2_val = 0;
805
806 dev_dbg(component->dev, "%s\n", __func__);
807
808 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
809 case SND_SOC_DAIFMT_CBM_CFM:
810 ctrl2_val |= 1;
811 break;
812 case SND_SOC_DAIFMT_CBS_CFS:
813 ctrl2_val &= ~1;
814 break;
815 default:
816 return -EINVAL;
817 }
818
819 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
820 case SND_SOC_DAIFMT_I2S:
821 ctrl1_val |= 0x10;
822 break;
823 case SND_SOC_DAIFMT_RIGHT_J:
824 break;
825 case SND_SOC_DAIFMT_LEFT_J:
826 ctrl1_val |= 0x8;
827 break;
828 case SND_SOC_DAIFMT_DSP_A:
829 ctrl1_val |= 0x18;
830 break;
831 default:
832 return -EINVAL;
833 }
834
835 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
836 case SND_SOC_DAIFMT_NB_NF:
837 break;
838 case SND_SOC_DAIFMT_IB_IF:
839 ctrl1_val |= 0x180;
840 break;
841 case SND_SOC_DAIFMT_IB_NF:
842 ctrl1_val |= 0x100;
843 break;
844 case SND_SOC_DAIFMT_NB_IF:
845 ctrl1_val |= 0x80;
846 break;
847 default:
848 return -EINVAL;
849 }
850
851 snd_soc_component_update_bits(component,
852 NAU8822_REG_AUDIO_INTERFACE,
853 NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK,
854 ctrl1_val);
855 snd_soc_component_update_bits(component,
856 NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val);
857
858 return 0;
859 }
860
861 static int nau8822_hw_params(struct snd_pcm_substream *substream,
862 struct snd_pcm_hw_params *params,
863 struct snd_soc_dai *dai)
864 {
865 struct snd_soc_component *component = dai->component;
866 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
867 int div = 0, val_len = 0, val_rate = 0;
868 unsigned int ctrl_val, bclk_fs, bclk_div;
869
870 /* make BCLK and LRC divide configuration if the codec as master. */
871 ctrl_val = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
872 if (ctrl_val & NAU8822_CLK_MASTER) {
873 /* get the bclk and fs ratio */
874 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params);
875 if (bclk_fs <= 32)
876 bclk_div = NAU8822_BCLKDIV_8;
877 else if (bclk_fs <= 64)
878 bclk_div = NAU8822_BCLKDIV_4;
879 else if (bclk_fs <= 128)
880 bclk_div = NAU8822_BCLKDIV_2;
881 else
882 return -EINVAL;
883 snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING,
884 NAU8822_BCLKSEL_MASK, bclk_div);
885 }
886
887 switch (params_format(params)) {
888 case SNDRV_PCM_FORMAT_S16_LE:
889 break;
890 case SNDRV_PCM_FORMAT_S20_3LE:
891 val_len |= NAU8822_WLEN_20;
892 break;
893 case SNDRV_PCM_FORMAT_S24_LE:
894 val_len |= NAU8822_WLEN_24;
895 break;
896 case SNDRV_PCM_FORMAT_S32_LE:
897 val_len |= NAU8822_WLEN_32;
898 break;
899 default:
900 return -EINVAL;
901 }
902
903 switch (params_rate(params)) {
904 case 8000:
905 val_rate |= NAU8822_SMPLR_8K;
906 break;
907 case 11025:
908 val_rate |= NAU8822_SMPLR_12K;
909 break;
910 case 16000:
911 val_rate |= NAU8822_SMPLR_16K;
912 break;
913 case 22050:
914 val_rate |= NAU8822_SMPLR_24K;
915 break;
916 case 32000:
917 val_rate |= NAU8822_SMPLR_32K;
918 break;
919 case 44100:
920 case 48000:
921 break;
922 default:
923 return -EINVAL;
924 }
925
926 snd_soc_component_update_bits(component,
927 NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len);
928 snd_soc_component_update_bits(component,
929 NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate);
930
931 /* If the master clock is from MCLK, provide the runtime FS for driver
932 * to get the master clock prescaler configuration.
933 */
934 if (nau8822->div_id != NAU8822_CLK_MCLK)
935 div = nau8822->pll.mclk_scaler;
936
937 nau8822_config_clkdiv(dai, div, params_rate(params));
938
939 return 0;
940 }
941
942 static int nau8822_mute(struct snd_soc_dai *dai, int mute, int direction)
943 {
944 struct snd_soc_component *component = dai->component;
945
946 dev_dbg(component->dev, "%s: %d\n", __func__, mute);
947
948 if (mute)
949 snd_soc_component_update_bits(component,
950 NAU8822_REG_DAC_CONTROL, 0x40, 0x40);
951 else
952 snd_soc_component_update_bits(component,
953 NAU8822_REG_DAC_CONTROL, 0x40, 0);
954
955 return 0;
956 }
957
958 static int nau8822_set_bias_level(struct snd_soc_component *component,
959 enum snd_soc_bias_level level)
960 {
961 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
962
963 switch (level) {
964 case SND_SOC_BIAS_ON:
965 break;
966
967 case SND_SOC_BIAS_PREPARE:
968 if (nau8822->mclk &&
969 snd_soc_component_get_bias_level(component) != SND_SOC_BIAS_ON) {
970 int ret = clk_prepare_enable(nau8822->mclk);
971
972 if (ret) {
973 dev_err(component->dev,
974 "Failed to enable MCLK: %d\n", ret);
975 return ret;
976 }
977 }
978
979 snd_soc_component_update_bits(component,
980 NAU8822_REG_POWER_MANAGEMENT_1,
981 NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K);
982 break;
983
984 case SND_SOC_BIAS_STANDBY:
985 if (nau8822->mclk &&
986 snd_soc_component_get_bias_level(component) != SND_SOC_BIAS_OFF)
987 clk_disable_unprepare(nau8822->mclk);
988
989 snd_soc_component_update_bits(component,
990 NAU8822_REG_POWER_MANAGEMENT_1,
991 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN,
992 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN);
993
994 if (snd_soc_component_get_bias_level(component) ==
995 SND_SOC_BIAS_OFF) {
996 snd_soc_component_update_bits(component,
997 NAU8822_REG_POWER_MANAGEMENT_1,
998 NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K);
999 mdelay(100);
1000 }
1001 snd_soc_component_update_bits(component,
1002 NAU8822_REG_POWER_MANAGEMENT_1,
1003 NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K);
1004 break;
1005
1006 case SND_SOC_BIAS_OFF:
1007 snd_soc_component_write(component,
1008 NAU8822_REG_POWER_MANAGEMENT_1, 0);
1009 snd_soc_component_write(component,
1010 NAU8822_REG_POWER_MANAGEMENT_2, 0);
1011 snd_soc_component_write(component,
1012 NAU8822_REG_POWER_MANAGEMENT_3, 0);
1013 break;
1014 }
1015
1016 dev_dbg(component->dev, "%s: %d\n", __func__, level);
1017
1018 return 0;
1019 }
1020
1021 #define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000)
1022
1023 #define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1024 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1025
1026 static const struct snd_soc_dai_ops nau8822_dai_ops = {
1027 .hw_params = nau8822_hw_params,
1028 .mute_stream = nau8822_mute,
1029 .set_fmt = nau8822_set_dai_fmt,
1030 .set_sysclk = nau8822_set_dai_sysclk,
1031 .set_pll = nau8822_set_pll,
1032 .no_capture_mute = 1,
1033 };
1034
1035 static struct snd_soc_dai_driver nau8822_dai = {
1036 .name = "nau8822-hifi",
1037 .playback = {
1038 .stream_name = "Playback",
1039 .channels_min = 1,
1040 .channels_max = 2,
1041 .rates = NAU8822_RATES,
1042 .formats = NAU8822_FORMATS,
1043 },
1044 .capture = {
1045 .stream_name = "Capture",
1046 .channels_min = 1,
1047 .channels_max = 2,
1048 .rates = NAU8822_RATES,
1049 .formats = NAU8822_FORMATS,
1050 },
1051 .ops = &nau8822_dai_ops,
1052 .symmetric_rate = 1,
1053 };
1054
1055 static int nau8822_suspend(struct snd_soc_component *component)
1056 {
1057 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1058
1059 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
1060
1061 regcache_mark_dirty(nau8822->regmap);
1062
1063 return 0;
1064 }
1065
1066 static int nau8822_resume(struct snd_soc_component *component)
1067 {
1068 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1069
1070 regcache_sync(nau8822->regmap);
1071
1072 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
1073
1074 return 0;
1075 }
1076
1077 /*
1078 * These registers contain an "update" bit - bit 8. This means, for example,
1079 * that one can write new DAC digital volume for both channels, but only when
1080 * the update bit is set, will also the volume be updated - simultaneously for
1081 * both channels.
1082 */
1083 static const int update_reg[] = {
1084 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
1085 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME,
1086 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
1087 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME,
1088 NAU8822_REG_LEFT_INP_PGA_CONTROL,
1089 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
1090 NAU8822_REG_LHP_VOLUME,
1091 NAU8822_REG_RHP_VOLUME,
1092 NAU8822_REG_LSPKOUT_VOLUME,
1093 NAU8822_REG_RSPKOUT_VOLUME,
1094 };
1095
1096 static int nau8822_probe(struct snd_soc_component *component)
1097 {
1098 int i;
1099 struct device_node *of_node = component->dev->of_node;
1100
1101 /*
1102 * Set the update bit in all registers, that have one. This way all
1103 * writes to those registers will also cause the update bit to be
1104 * written.
1105 */
1106 for (i = 0; i < ARRAY_SIZE(update_reg); i++)
1107 snd_soc_component_update_bits(component,
1108 update_reg[i], 0x100, 0x100);
1109
1110 /* Check property to configure the two loudspeaker outputs as
1111 * a single Bridge Tied Load output
1112 */
1113 if (of_property_read_bool(of_node, "nuvoton,spk-btl"))
1114 snd_soc_component_update_bits(component,
1115 NAU8822_REG_RIGHT_SPEAKER_CONTROL,
1116 NAU8822_RSUBBYP, NAU8822_RSUBBYP);
1117
1118 return 0;
1119 }
1120
1121 static const struct snd_soc_component_driver soc_component_dev_nau8822 = {
1122 .probe = nau8822_probe,
1123 .suspend = nau8822_suspend,
1124 .resume = nau8822_resume,
1125 .set_bias_level = nau8822_set_bias_level,
1126 .controls = nau8822_snd_controls,
1127 .num_controls = ARRAY_SIZE(nau8822_snd_controls),
1128 .dapm_widgets = nau8822_dapm_widgets,
1129 .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets),
1130 .dapm_routes = nau8822_dapm_routes,
1131 .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes),
1132 .idle_bias_on = 1,
1133 .use_pmdown_time = 1,
1134 .endianness = 1,
1135 };
1136
1137 static const struct regmap_config nau8822_regmap_config = {
1138 .reg_bits = 7,
1139 .val_bits = 9,
1140
1141 .max_register = NAU8822_REG_MAX_REGISTER,
1142 .volatile_reg = nau8822_volatile,
1143
1144 .readable_reg = nau8822_readable_reg,
1145 .writeable_reg = nau8822_writeable_reg,
1146
1147 .cache_type = REGCACHE_RBTREE,
1148 .reg_defaults = nau8822_reg_defaults,
1149 .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults),
1150 };
1151
1152 static int nau8822_i2c_probe(struct i2c_client *i2c)
1153 {
1154 struct device *dev = &i2c->dev;
1155 struct nau8822 *nau8822 = dev_get_platdata(dev);
1156 int ret;
1157
1158 if (!nau8822) {
1159 nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL);
1160 if (nau8822 == NULL)
1161 return -ENOMEM;
1162 }
1163 i2c_set_clientdata(i2c, nau8822);
1164
1165 nau8822->mclk = devm_clk_get_optional(&i2c->dev, "mclk");
1166 if (IS_ERR(nau8822->mclk))
1167 return dev_err_probe(&i2c->dev, PTR_ERR(nau8822->mclk),
1168 "Error getting mclk\n");
1169
1170 nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config);
1171 if (IS_ERR(nau8822->regmap)) {
1172 ret = PTR_ERR(nau8822->regmap);
1173 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
1174 return ret;
1175 }
1176 nau8822->dev = dev;
1177
1178 /* Reset the codec */
1179 ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00);
1180 if (ret != 0) {
1181 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1182 return ret;
1183 }
1184
1185 ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822,
1186 &nau8822_dai, 1);
1187 if (ret != 0) {
1188 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1189 return ret;
1190 }
1191
1192 return 0;
1193 }
1194
1195 static const struct i2c_device_id nau8822_i2c_id[] = {
1196 { "nau8822" },
1197 { }
1198 };
1199 MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id);
1200
1201 #ifdef CONFIG_OF
1202 static const struct of_device_id nau8822_of_match[] = {
1203 { .compatible = "nuvoton,nau8822", },
1204 { }
1205 };
1206 MODULE_DEVICE_TABLE(of, nau8822_of_match);
1207 #endif
1208
1209 static struct i2c_driver nau8822_i2c_driver = {
1210 .driver = {
1211 .name = "nau8822",
1212 .of_match_table = of_match_ptr(nau8822_of_match),
1213 },
1214 .probe = nau8822_i2c_probe,
1215 .id_table = nau8822_i2c_id,
1216 };
1217 module_i2c_driver(nau8822_i2c_driver);
1218
1219 MODULE_DESCRIPTION("ASoC NAU8822 codec driver");
1220 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>");
1221 MODULE_LICENSE("GPL v2");
1222
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