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ARM: dts: omap5: Add bus_dma_limit for L3 bus
[linux/fpc-iii.git] / sound / soc / codecs / nau8824.c
blob15bd8335f6678203527ee08c46c855f61e4cb44e
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * NAU88L24 ALSA SoC audio driver
4 *
5 * Copyright 2016 Nuvoton Technology Corp.
6 * Author: John Hsu <KCHSU0@nuvoton.com>
7 */
8
9 #include <linux/module.h>
10 #include <linux/delay.h>
11 #include <linux/init.h>
12 #include <linux/i2c.h>
13 #include <linux/regmap.h>
14 #include <linux/slab.h>
15 #include <linux/clk.h>
16 #include <linux/acpi.h>
17 #include <linux/math64.h>
18 #include <linux/semaphore.h>
19
20 #include <sound/initval.h>
21 #include <sound/tlv.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/jack.h>
27
28 #include "nau8824.h"
29
30
31 static int nau8824_config_sysclk(struct nau8824 *nau8824,
32 int clk_id, unsigned int freq);
33 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824);
34
35 /* the ADC threshold of headset */
36 #define DMIC_CLK 3072000
37
38 /* the ADC threshold of headset */
39 #define HEADSET_SARADC_THD 0x80
40
41 /* the parameter threshold of FLL */
42 #define NAU_FREF_MAX 13500000
43 #define NAU_FVCO_MAX 100000000
44 #define NAU_FVCO_MIN 90000000
45
46 /* scaling for mclk from sysclk_src output */
47 static const struct nau8824_fll_attr mclk_src_scaling[] = {
48 { 1, 0x0 },
49 { 2, 0x2 },
50 { 4, 0x3 },
51 { 8, 0x4 },
52 { 16, 0x5 },
53 { 32, 0x6 },
54 { 3, 0x7 },
55 { 6, 0xa },
56 { 12, 0xb },
57 { 24, 0xc },
58 };
59
60 /* ratio for input clk freq */
61 static const struct nau8824_fll_attr fll_ratio[] = {
62 { 512000, 0x01 },
63 { 256000, 0x02 },
64 { 128000, 0x04 },
65 { 64000, 0x08 },
66 { 32000, 0x10 },
67 { 8000, 0x20 },
68 { 4000, 0x40 },
69 };
70
71 static const struct nau8824_fll_attr fll_pre_scalar[] = {
72 { 1, 0x0 },
73 { 2, 0x1 },
74 { 4, 0x2 },
75 { 8, 0x3 },
76 };
77
78 /* the maximum frequency of CLK_ADC and CLK_DAC */
79 #define CLK_DA_AD_MAX 6144000
80
81 /* over sampling rate */
82 static const struct nau8824_osr_attr osr_dac_sel[] = {
83 { 64, 2 }, /* OSR 64, SRC 1/4 */
84 { 256, 0 }, /* OSR 256, SRC 1 */
85 { 128, 1 }, /* OSR 128, SRC 1/2 */
86 { 0, 0 },
87 { 32, 3 }, /* OSR 32, SRC 1/8 */
88 };
89
90 static const struct nau8824_osr_attr osr_adc_sel[] = {
91 { 32, 3 }, /* OSR 32, SRC 1/8 */
92 { 64, 2 }, /* OSR 64, SRC 1/4 */
93 { 128, 1 }, /* OSR 128, SRC 1/2 */
94 { 256, 0 }, /* OSR 256, SRC 1 */
95 };
96
97 static const struct reg_default nau8824_reg_defaults[] = {
98 { NAU8824_REG_ENA_CTRL, 0x0000 },
99 { NAU8824_REG_CLK_GATING_ENA, 0x0000 },
100 { NAU8824_REG_CLK_DIVIDER, 0x0000 },
101 { NAU8824_REG_FLL1, 0x0000 },
102 { NAU8824_REG_FLL2, 0x3126 },
103 { NAU8824_REG_FLL3, 0x0008 },
104 { NAU8824_REG_FLL4, 0x0010 },
105 { NAU8824_REG_FLL5, 0xC000 },
106 { NAU8824_REG_FLL6, 0x6000 },
107 { NAU8824_REG_FLL_VCO_RSV, 0xF13C },
108 { NAU8824_REG_JACK_DET_CTRL, 0x0000 },
109 { NAU8824_REG_INTERRUPT_SETTING_1, 0x0000 },
110 { NAU8824_REG_IRQ, 0x0000 },
111 { NAU8824_REG_CLEAR_INT_REG, 0x0000 },
112 { NAU8824_REG_INTERRUPT_SETTING, 0x1000 },
113 { NAU8824_REG_SAR_ADC, 0x0015 },
114 { NAU8824_REG_VDET_COEFFICIENT, 0x0110 },
115 { NAU8824_REG_VDET_THRESHOLD_1, 0x0000 },
116 { NAU8824_REG_VDET_THRESHOLD_2, 0x0000 },
117 { NAU8824_REG_VDET_THRESHOLD_3, 0x0000 },
118 { NAU8824_REG_VDET_THRESHOLD_4, 0x0000 },
119 { NAU8824_REG_GPIO_SEL, 0x0000 },
120 { NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 0x000B },
121 { NAU8824_REG_PORT0_I2S_PCM_CTRL_2, 0x0010 },
122 { NAU8824_REG_PORT0_LEFT_TIME_SLOT, 0x0000 },
123 { NAU8824_REG_PORT0_RIGHT_TIME_SLOT, 0x0000 },
124 { NAU8824_REG_TDM_CTRL, 0x0000 },
125 { NAU8824_REG_ADC_HPF_FILTER, 0x0000 },
126 { NAU8824_REG_ADC_FILTER_CTRL, 0x0002 },
127 { NAU8824_REG_DAC_FILTER_CTRL_1, 0x0000 },
128 { NAU8824_REG_DAC_FILTER_CTRL_2, 0x0000 },
129 { NAU8824_REG_NOTCH_FILTER_1, 0x0000 },
130 { NAU8824_REG_NOTCH_FILTER_2, 0x0000 },
131 { NAU8824_REG_EQ1_LOW, 0x112C },
132 { NAU8824_REG_EQ2_EQ3, 0x2C2C },
133 { NAU8824_REG_EQ4_EQ5, 0x2C2C },
134 { NAU8824_REG_ADC_CH0_DGAIN_CTRL, 0x0100 },
135 { NAU8824_REG_ADC_CH1_DGAIN_CTRL, 0x0100 },
136 { NAU8824_REG_ADC_CH2_DGAIN_CTRL, 0x0100 },
137 { NAU8824_REG_ADC_CH3_DGAIN_CTRL, 0x0100 },
138 { NAU8824_REG_DAC_MUTE_CTRL, 0x0000 },
139 { NAU8824_REG_DAC_CH0_DGAIN_CTRL, 0x0100 },
140 { NAU8824_REG_DAC_CH1_DGAIN_CTRL, 0x0100 },
141 { NAU8824_REG_ADC_TO_DAC_ST, 0x0000 },
142 { NAU8824_REG_DRC_KNEE_IP12_ADC_CH01, 0x1486 },
143 { NAU8824_REG_DRC_KNEE_IP34_ADC_CH01, 0x0F12 },
144 { NAU8824_REG_DRC_SLOPE_ADC_CH01, 0x25FF },
145 { NAU8824_REG_DRC_ATKDCY_ADC_CH01, 0x3457 },
146 { NAU8824_REG_DRC_KNEE_IP12_ADC_CH23, 0x1486 },
147 { NAU8824_REG_DRC_KNEE_IP34_ADC_CH23, 0x0F12 },
148 { NAU8824_REG_DRC_SLOPE_ADC_CH23, 0x25FF },
149 { NAU8824_REG_DRC_ATKDCY_ADC_CH23, 0x3457 },
150 { NAU8824_REG_DRC_GAINL_ADC0, 0x0200 },
151 { NAU8824_REG_DRC_GAINL_ADC1, 0x0200 },
152 { NAU8824_REG_DRC_GAINL_ADC2, 0x0200 },
153 { NAU8824_REG_DRC_GAINL_ADC3, 0x0200 },
154 { NAU8824_REG_DRC_KNEE_IP12_DAC, 0x1486 },
155 { NAU8824_REG_DRC_KNEE_IP34_DAC, 0x0F12 },
156 { NAU8824_REG_DRC_SLOPE_DAC, 0x25F9 },
157 { NAU8824_REG_DRC_ATKDCY_DAC, 0x3457 },
158 { NAU8824_REG_DRC_GAIN_DAC_CH0, 0x0200 },
159 { NAU8824_REG_DRC_GAIN_DAC_CH1, 0x0200 },
160 { NAU8824_REG_MODE, 0x0000 },
161 { NAU8824_REG_MODE1, 0x0000 },
162 { NAU8824_REG_MODE2, 0x0000 },
163 { NAU8824_REG_CLASSG, 0x0000 },
164 { NAU8824_REG_OTP_EFUSE, 0x0000 },
165 { NAU8824_REG_OTPDOUT_1, 0x0000 },
166 { NAU8824_REG_OTPDOUT_2, 0x0000 },
167 { NAU8824_REG_MISC_CTRL, 0x0000 },
168 { NAU8824_REG_I2C_TIMEOUT, 0xEFFF },
169 { NAU8824_REG_TEST_MODE, 0x0000 },
170 { NAU8824_REG_I2C_DEVICE_ID, 0x1AF1 },
171 { NAU8824_REG_SAR_ADC_DATA_OUT, 0x00FF },
172 { NAU8824_REG_BIAS_ADJ, 0x0000 },
173 { NAU8824_REG_PGA_GAIN, 0x0000 },
174 { NAU8824_REG_TRIM_SETTINGS, 0x0000 },
175 { NAU8824_REG_ANALOG_CONTROL_1, 0x0000 },
176 { NAU8824_REG_ANALOG_CONTROL_2, 0x0000 },
177 { NAU8824_REG_ENABLE_LO, 0x0000 },
178 { NAU8824_REG_GAIN_LO, 0x0000 },
179 { NAU8824_REG_CLASSD_GAIN_1, 0x0000 },
180 { NAU8824_REG_CLASSD_GAIN_2, 0x0000 },
181 { NAU8824_REG_ANALOG_ADC_1, 0x0011 },
182 { NAU8824_REG_ANALOG_ADC_2, 0x0020 },
183 { NAU8824_REG_RDAC, 0x0008 },
184 { NAU8824_REG_MIC_BIAS, 0x0006 },
185 { NAU8824_REG_HS_VOLUME_CONTROL, 0x0000 },
186 { NAU8824_REG_BOOST, 0x0000 },
187 { NAU8824_REG_FEPGA, 0x0000 },
188 { NAU8824_REG_FEPGA_II, 0x0000 },
189 { NAU8824_REG_FEPGA_SE, 0x0000 },
190 { NAU8824_REG_FEPGA_ATTENUATION, 0x0000 },
191 { NAU8824_REG_ATT_PORT0, 0x0000 },
192 { NAU8824_REG_ATT_PORT1, 0x0000 },
193 { NAU8824_REG_POWER_UP_CONTROL, 0x0000 },
194 { NAU8824_REG_CHARGE_PUMP_CONTROL, 0x0300 },
195 { NAU8824_REG_CHARGE_PUMP_INPUT, 0x0013 },
196 };
197
198 static int nau8824_sema_acquire(struct nau8824 *nau8824, long timeout)
199 {
200 int ret;
201
202 if (timeout) {
203 ret = down_timeout(&nau8824->jd_sem, timeout);
204 if (ret < 0)
205 dev_warn(nau8824->dev, "Acquire semaphore timeout\n");
206 } else {
207 ret = down_interruptible(&nau8824->jd_sem);
208 if (ret < 0)
209 dev_warn(nau8824->dev, "Acquire semaphore fail\n");
210 }
211
212 return ret;
213 }
214
215 static inline void nau8824_sema_release(struct nau8824 *nau8824)
216 {
217 up(&nau8824->jd_sem);
218 }
219
220 static bool nau8824_readable_reg(struct device *dev, unsigned int reg)
221 {
222 switch (reg) {
223 case NAU8824_REG_ENA_CTRL ... NAU8824_REG_FLL_VCO_RSV:
224 case NAU8824_REG_JACK_DET_CTRL:
225 case NAU8824_REG_INTERRUPT_SETTING_1:
226 case NAU8824_REG_IRQ:
227 case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4:
228 case NAU8824_REG_GPIO_SEL:
229 case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL:
230 case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5:
231 case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST:
232 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01 ... NAU8824_REG_DRC_GAINL_ADC3:
233 case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_GAIN_DAC_CH1:
234 case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE:
235 case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2:
236 case NAU8824_REG_I2C_TIMEOUT:
237 case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT:
238 case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2:
239 case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1:
240 case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_INPUT:
241 return true;
242 default:
243 return false;
244 }
245
246 }
247
248 static bool nau8824_writeable_reg(struct device *dev, unsigned int reg)
249 {
250 switch (reg) {
251 case NAU8824_REG_RESET ... NAU8824_REG_FLL_VCO_RSV:
252 case NAU8824_REG_JACK_DET_CTRL:
253 case NAU8824_REG_INTERRUPT_SETTING_1:
254 case NAU8824_REG_CLEAR_INT_REG ... NAU8824_REG_VDET_THRESHOLD_4:
255 case NAU8824_REG_GPIO_SEL:
256 case NAU8824_REG_PORT0_I2S_PCM_CTRL_1 ... NAU8824_REG_TDM_CTRL:
257 case NAU8824_REG_ADC_HPF_FILTER ... NAU8824_REG_EQ4_EQ5:
258 case NAU8824_REG_ADC_CH0_DGAIN_CTRL ... NAU8824_REG_ADC_TO_DAC_ST:
259 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH01:
260 case NAU8824_REG_DRC_KNEE_IP34_ADC_CH01:
261 case NAU8824_REG_DRC_SLOPE_ADC_CH01:
262 case NAU8824_REG_DRC_ATKDCY_ADC_CH01:
263 case NAU8824_REG_DRC_KNEE_IP12_ADC_CH23:
264 case NAU8824_REG_DRC_KNEE_IP34_ADC_CH23:
265 case NAU8824_REG_DRC_SLOPE_ADC_CH23:
266 case NAU8824_REG_DRC_ATKDCY_ADC_CH23:
267 case NAU8824_REG_DRC_KNEE_IP12_DAC ... NAU8824_REG_DRC_ATKDCY_DAC:
268 case NAU8824_REG_CLASSG ... NAU8824_REG_OTP_EFUSE:
269 case NAU8824_REG_I2C_TIMEOUT:
270 case NAU8824_REG_BIAS_ADJ ... NAU8824_REG_CLASSD_GAIN_2:
271 case NAU8824_REG_ANALOG_ADC_1 ... NAU8824_REG_ATT_PORT1:
272 case NAU8824_REG_POWER_UP_CONTROL ... NAU8824_REG_CHARGE_PUMP_CONTROL:
273 return true;
274 default:
275 return false;
276 }
277 }
278
279 static bool nau8824_volatile_reg(struct device *dev, unsigned int reg)
280 {
281 switch (reg) {
282 case NAU8824_REG_RESET:
283 case NAU8824_REG_IRQ ... NAU8824_REG_CLEAR_INT_REG:
284 case NAU8824_REG_DRC_GAINL_ADC0 ... NAU8824_REG_DRC_GAINL_ADC3:
285 case NAU8824_REG_DRC_GAIN_DAC_CH0 ... NAU8824_REG_DRC_GAIN_DAC_CH1:
286 case NAU8824_REG_OTPDOUT_1 ... NAU8824_REG_OTPDOUT_2:
287 case NAU8824_REG_I2C_DEVICE_ID ... NAU8824_REG_SAR_ADC_DATA_OUT:
288 case NAU8824_REG_CHARGE_PUMP_INPUT:
289 return true;
290 default:
291 return false;
292 }
293 }
294
295 static const char * const nau8824_companding[] = {
296 "Off", "NC", "u-law", "A-law" };
297
298 static const struct soc_enum nau8824_companding_adc_enum =
299 SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 12,
300 ARRAY_SIZE(nau8824_companding), nau8824_companding);
301
302 static const struct soc_enum nau8824_companding_dac_enum =
303 SOC_ENUM_SINGLE(NAU8824_REG_PORT0_I2S_PCM_CTRL_1, 14,
304 ARRAY_SIZE(nau8824_companding), nau8824_companding);
305
306 static const char * const nau8824_adc_decimation[] = {
307 "32", "64", "128", "256" };
308
309 static const struct soc_enum nau8824_adc_decimation_enum =
310 SOC_ENUM_SINGLE(NAU8824_REG_ADC_FILTER_CTRL, 0,
311 ARRAY_SIZE(nau8824_adc_decimation), nau8824_adc_decimation);
312
313 static const char * const nau8824_dac_oversampl[] = {
314 "64", "256", "128", "", "32" };
315
316 static const struct soc_enum nau8824_dac_oversampl_enum =
317 SOC_ENUM_SINGLE(NAU8824_REG_DAC_FILTER_CTRL_1, 0,
318 ARRAY_SIZE(nau8824_dac_oversampl), nau8824_dac_oversampl);
319
320 static const char * const nau8824_input_channel[] = {
321 "Input CH0", "Input CH1", "Input CH2", "Input CH3" };
322
323 static const struct soc_enum nau8824_adc_ch0_enum =
324 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH0_DGAIN_CTRL, 9,
325 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
326
327 static const struct soc_enum nau8824_adc_ch1_enum =
328 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH1_DGAIN_CTRL, 9,
329 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
330
331 static const struct soc_enum nau8824_adc_ch2_enum =
332 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH2_DGAIN_CTRL, 9,
333 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
334
335 static const struct soc_enum nau8824_adc_ch3_enum =
336 SOC_ENUM_SINGLE(NAU8824_REG_ADC_CH3_DGAIN_CTRL, 9,
337 ARRAY_SIZE(nau8824_input_channel), nau8824_input_channel);
338
339 static const char * const nau8824_tdm_slot[] = {
340 "Slot 0", "Slot 1", "Slot 2", "Slot 3" };
341
342 static const struct soc_enum nau8824_dac_left_sel_enum =
343 SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 6,
344 ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot);
345
346 static const struct soc_enum nau8824_dac_right_sel_enum =
347 SOC_ENUM_SINGLE(NAU8824_REG_TDM_CTRL, 4,
348 ARRAY_SIZE(nau8824_tdm_slot), nau8824_tdm_slot);
349
350 static const DECLARE_TLV_DB_MINMAX_MUTE(spk_vol_tlv, 0, 2400);
351 static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -3000, 0);
352 static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 200, 0);
353 static const DECLARE_TLV_DB_SCALE(dmic_vol_tlv, -12800, 50, 0);
354
355 static const struct snd_kcontrol_new nau8824_snd_controls[] = {
356 SOC_ENUM("ADC Companding", nau8824_companding_adc_enum),
357 SOC_ENUM("DAC Companding", nau8824_companding_dac_enum),
358
359 SOC_ENUM("ADC Decimation Rate", nau8824_adc_decimation_enum),
360 SOC_ENUM("DAC Oversampling Rate", nau8824_dac_oversampl_enum),
361
362 SOC_SINGLE_TLV("Speaker Right DACR Volume",
363 NAU8824_REG_CLASSD_GAIN_1, 8, 0x1f, 0, spk_vol_tlv),
364 SOC_SINGLE_TLV("Speaker Left DACL Volume",
365 NAU8824_REG_CLASSD_GAIN_2, 0, 0x1f, 0, spk_vol_tlv),
366 SOC_SINGLE_TLV("Speaker Left DACR Volume",
367 NAU8824_REG_CLASSD_GAIN_1, 0, 0x1f, 0, spk_vol_tlv),
368 SOC_SINGLE_TLV("Speaker Right DACL Volume",
369 NAU8824_REG_CLASSD_GAIN_2, 8, 0x1f, 0, spk_vol_tlv),
370
371 SOC_SINGLE_TLV("Headphone Right DACR Volume",
372 NAU8824_REG_ATT_PORT0, 8, 0x1f, 0, hp_vol_tlv),
373 SOC_SINGLE_TLV("Headphone Left DACL Volume",
374 NAU8824_REG_ATT_PORT0, 0, 0x1f, 0, hp_vol_tlv),
375 SOC_SINGLE_TLV("Headphone Right DACL Volume",
376 NAU8824_REG_ATT_PORT1, 8, 0x1f, 0, hp_vol_tlv),
377 SOC_SINGLE_TLV("Headphone Left DACR Volume",
378 NAU8824_REG_ATT_PORT1, 0, 0x1f, 0, hp_vol_tlv),
379
380 SOC_SINGLE_TLV("MIC1 Volume", NAU8824_REG_FEPGA_II,
381 NAU8824_FEPGA_GAINL_SFT, 0x12, 0, mic_vol_tlv),
382 SOC_SINGLE_TLV("MIC2 Volume", NAU8824_REG_FEPGA_II,
383 NAU8824_FEPGA_GAINR_SFT, 0x12, 0, mic_vol_tlv),
384
385 SOC_SINGLE_TLV("DMIC1 Volume", NAU8824_REG_ADC_CH0_DGAIN_CTRL,
386 0, 0x164, 0, dmic_vol_tlv),
387 SOC_SINGLE_TLV("DMIC2 Volume", NAU8824_REG_ADC_CH1_DGAIN_CTRL,
388 0, 0x164, 0, dmic_vol_tlv),
389 SOC_SINGLE_TLV("DMIC3 Volume", NAU8824_REG_ADC_CH2_DGAIN_CTRL,
390 0, 0x164, 0, dmic_vol_tlv),
391 SOC_SINGLE_TLV("DMIC4 Volume", NAU8824_REG_ADC_CH3_DGAIN_CTRL,
392 0, 0x164, 0, dmic_vol_tlv),
393
394 SOC_ENUM("ADC CH0 Select", nau8824_adc_ch0_enum),
395 SOC_ENUM("ADC CH1 Select", nau8824_adc_ch1_enum),
396 SOC_ENUM("ADC CH2 Select", nau8824_adc_ch2_enum),
397 SOC_ENUM("ADC CH3 Select", nau8824_adc_ch3_enum),
398
399 SOC_SINGLE("ADC CH0 TX Switch", NAU8824_REG_TDM_CTRL, 0, 1, 0),
400 SOC_SINGLE("ADC CH1 TX Switch", NAU8824_REG_TDM_CTRL, 1, 1, 0),
401 SOC_SINGLE("ADC CH2 TX Switch", NAU8824_REG_TDM_CTRL, 2, 1, 0),
402 SOC_SINGLE("ADC CH3 TX Switch", NAU8824_REG_TDM_CTRL, 3, 1, 0),
403
404 SOC_ENUM("DACL Channel Source", nau8824_dac_left_sel_enum),
405 SOC_ENUM("DACR Channel Source", nau8824_dac_right_sel_enum),
406
407 SOC_SINGLE("DACL LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 0, 1, 0),
408 SOC_SINGLE("DACR LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 1, 1, 0),
409
410 SOC_SINGLE("THD for key media",
411 NAU8824_REG_VDET_THRESHOLD_1, 8, 0xff, 0),
412 SOC_SINGLE("THD for key voice command",
413 NAU8824_REG_VDET_THRESHOLD_1, 0, 0xff, 0),
414 SOC_SINGLE("THD for key volume up",
415 NAU8824_REG_VDET_THRESHOLD_2, 8, 0xff, 0),
416 SOC_SINGLE("THD for key volume down",
417 NAU8824_REG_VDET_THRESHOLD_2, 0, 0xff, 0),
418 };
419
420 static int nau8824_output_dac_event(struct snd_soc_dapm_widget *w,
421 struct snd_kcontrol *kcontrol, int event)
422 {
423 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
424 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
425
426 switch (event) {
427 case SND_SOC_DAPM_PRE_PMU:
428 /* Disables the TESTDAC to let DAC signal pass through. */
429 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,
430 NAU8824_TEST_DAC_EN, 0);
431 break;
432 case SND_SOC_DAPM_POST_PMD:
433 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,
434 NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN);
435 break;
436 default:
437 return -EINVAL;
438 }
439
440 return 0;
441 }
442
443 static int nau8824_spk_event(struct snd_soc_dapm_widget *w,
444 struct snd_kcontrol *kcontrol, int event)
445 {
446 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
447 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
448
449 switch (event) {
450 case SND_SOC_DAPM_PRE_PMU:
451 regmap_update_bits(nau8824->regmap,
452 NAU8824_REG_ANALOG_CONTROL_2,
453 NAU8824_CLASSD_CLAMP_DIS, NAU8824_CLASSD_CLAMP_DIS);
454 break;
455 case SND_SOC_DAPM_POST_PMD:
456 regmap_update_bits(nau8824->regmap,
457 NAU8824_REG_ANALOG_CONTROL_2,
458 NAU8824_CLASSD_CLAMP_DIS, 0);
459 break;
460 default:
461 return -EINVAL;
462 }
463
464 return 0;
465 }
466
467 static int nau8824_pump_event(struct snd_soc_dapm_widget *w,
468 struct snd_kcontrol *kcontrol, int event)
469 {
470 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
471 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
472
473 switch (event) {
474 case SND_SOC_DAPM_POST_PMU:
475 /* Prevent startup click by letting charge pump to ramp up */
476 msleep(10);
477 regmap_update_bits(nau8824->regmap,
478 NAU8824_REG_CHARGE_PUMP_CONTROL,
479 NAU8824_JAMNODCLOW, NAU8824_JAMNODCLOW);
480 break;
481 case SND_SOC_DAPM_PRE_PMD:
482 regmap_update_bits(nau8824->regmap,
483 NAU8824_REG_CHARGE_PUMP_CONTROL,
484 NAU8824_JAMNODCLOW, 0);
485 break;
486 default:
487 return -EINVAL;
488 }
489
490 return 0;
491 }
492
493 static int system_clock_control(struct snd_soc_dapm_widget *w,
494 struct snd_kcontrol *k, int event)
495 {
496 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
497 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
498 struct regmap *regmap = nau8824->regmap;
499 unsigned int value;
500 bool clk_fll, error;
501
502 if (SND_SOC_DAPM_EVENT_OFF(event)) {
503 dev_dbg(nau8824->dev, "system clock control : POWER OFF\n");
504 /* Set clock source to disable or internal clock before the
505 * playback or capture end. Codec needs clock for Jack
506 * detection and button press if jack inserted; otherwise,
507 * the clock should be closed.
508 */
509 if (nau8824_is_jack_inserted(nau8824)) {
510 nau8824_config_sysclk(nau8824,
511 NAU8824_CLK_INTERNAL, 0);
512 } else {
513 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
514 }
515 } else {
516 dev_dbg(nau8824->dev, "system clock control : POWER ON\n");
517 /* Check the clock source setting is proper or not
518 * no matter the source is from FLL or MCLK.
519 */
520 regmap_read(regmap, NAU8824_REG_FLL1, &value);
521 clk_fll = value & NAU8824_FLL_RATIO_MASK;
522 /* It's error to use internal clock when playback */
523 regmap_read(regmap, NAU8824_REG_FLL6, &value);
524 error = value & NAU8824_DCO_EN;
525 if (!error) {
526 /* Check error depending on source is FLL or MCLK. */
527 regmap_read(regmap, NAU8824_REG_CLK_DIVIDER, &value);
528 if (clk_fll)
529 error = !(value & NAU8824_CLK_SRC_VCO);
530 else
531 error = value & NAU8824_CLK_SRC_VCO;
532 }
533 /* Recover the clock source setting if error. */
534 if (error) {
535 if (clk_fll) {
536 regmap_update_bits(regmap,
537 NAU8824_REG_FLL6, NAU8824_DCO_EN, 0);
538 regmap_update_bits(regmap,
539 NAU8824_REG_CLK_DIVIDER,
540 NAU8824_CLK_SRC_MASK,
541 NAU8824_CLK_SRC_VCO);
542 } else {
543 nau8824_config_sysclk(nau8824,
544 NAU8824_CLK_MCLK, 0);
545 }
546 }
547 }
548
549 return 0;
550 }
551
552 static int dmic_clock_control(struct snd_soc_dapm_widget *w,
553 struct snd_kcontrol *k, int event)
554 {
555 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
556 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
557 int src;
558
559 /* The DMIC clock is gotten from system clock (256fs) divided by
560 * DMIC_SRC (1, 2, 4, 8, 16, 32). The clock has to be equal or
561 * less than 3.072 MHz.
562 */
563 for (src = 0; src < 5; src++) {
564 if ((0x1 << (8 - src)) * nau8824->fs <= DMIC_CLK)
565 break;
566 }
567 dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, nau8824->fs * 256);
568 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
569 NAU8824_CLK_DMIC_SRC_MASK, (src << NAU8824_CLK_DMIC_SRC_SFT));
570
571 return 0;
572 }
573
574 static const struct snd_kcontrol_new nau8824_adc_ch0_dmic =
575 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
576 NAU8824_ADC_CH0_DMIC_SFT, 1, 0);
577
578 static const struct snd_kcontrol_new nau8824_adc_ch1_dmic =
579 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
580 NAU8824_ADC_CH1_DMIC_SFT, 1, 0);
581
582 static const struct snd_kcontrol_new nau8824_adc_ch2_dmic =
583 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
584 NAU8824_ADC_CH2_DMIC_SFT, 1, 0);
585
586 static const struct snd_kcontrol_new nau8824_adc_ch3_dmic =
587 SOC_DAPM_SINGLE("Switch", NAU8824_REG_ENA_CTRL,
588 NAU8824_ADC_CH3_DMIC_SFT, 1, 0);
589
590 static const struct snd_kcontrol_new nau8824_adc_left_mixer[] = {
591 SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA,
592 NAU8824_FEPGA_MODEL_MIC1_SFT, 1, 0),
593 SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA,
594 NAU8824_FEPGA_MODEL_HSMIC_SFT, 1, 0),
595 };
596
597 static const struct snd_kcontrol_new nau8824_adc_right_mixer[] = {
598 SOC_DAPM_SINGLE("MIC Switch", NAU8824_REG_FEPGA,
599 NAU8824_FEPGA_MODER_MIC2_SFT, 1, 0),
600 SOC_DAPM_SINGLE("HSMIC Switch", NAU8824_REG_FEPGA,
601 NAU8824_FEPGA_MODER_HSMIC_SFT, 1, 0),
602 };
603
604 static const struct snd_kcontrol_new nau8824_hp_left_mixer[] = {
605 SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO,
606 NAU8824_DACR_HPL_EN_SFT, 1, 0),
607 SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO,
608 NAU8824_DACL_HPL_EN_SFT, 1, 0),
609 };
610
611 static const struct snd_kcontrol_new nau8824_hp_right_mixer[] = {
612 SOC_DAPM_SINGLE("DAC Left Switch", NAU8824_REG_ENABLE_LO,
613 NAU8824_DACL_HPR_EN_SFT, 1, 0),
614 SOC_DAPM_SINGLE("DAC Right Switch", NAU8824_REG_ENABLE_LO,
615 NAU8824_DACR_HPR_EN_SFT, 1, 0),
616 };
617
618 static const char * const nau8824_dac_src[] = { "DACL", "DACR" };
619
620 static SOC_ENUM_SINGLE_DECL(
621 nau8824_dacl_enum, NAU8824_REG_DAC_CH0_DGAIN_CTRL,
622 NAU8824_DAC_CH0_SEL_SFT, nau8824_dac_src);
623
624 static SOC_ENUM_SINGLE_DECL(
625 nau8824_dacr_enum, NAU8824_REG_DAC_CH1_DGAIN_CTRL,
626 NAU8824_DAC_CH1_SEL_SFT, nau8824_dac_src);
627
628 static const struct snd_kcontrol_new nau8824_dacl_mux =
629 SOC_DAPM_ENUM("DACL Source", nau8824_dacl_enum);
630
631 static const struct snd_kcontrol_new nau8824_dacr_mux =
632 SOC_DAPM_ENUM("DACR Source", nau8824_dacr_enum);
633
634
635 static const struct snd_soc_dapm_widget nau8824_dapm_widgets[] = {
636 SND_SOC_DAPM_SUPPLY("System Clock", SND_SOC_NOPM, 0, 0,
637 system_clock_control, SND_SOC_DAPM_POST_PMD |
638 SND_SOC_DAPM_POST_PMU),
639
640 SND_SOC_DAPM_INPUT("HSMIC1"),
641 SND_SOC_DAPM_INPUT("HSMIC2"),
642 SND_SOC_DAPM_INPUT("MIC1"),
643 SND_SOC_DAPM_INPUT("MIC2"),
644 SND_SOC_DAPM_INPUT("DMIC1"),
645 SND_SOC_DAPM_INPUT("DMIC2"),
646 SND_SOC_DAPM_INPUT("DMIC3"),
647 SND_SOC_DAPM_INPUT("DMIC4"),
648
649 SND_SOC_DAPM_SUPPLY("SAR", NAU8824_REG_SAR_ADC,
650 NAU8824_SAR_ADC_EN_SFT, 0, NULL, 0),
651 SND_SOC_DAPM_SUPPLY("MICBIAS", NAU8824_REG_MIC_BIAS,
652 NAU8824_MICBIAS_POWERUP_SFT, 0, NULL, 0),
653 SND_SOC_DAPM_SUPPLY("DMIC12 Power", NAU8824_REG_BIAS_ADJ,
654 NAU8824_DMIC1_EN_SFT, 0, NULL, 0),
655 SND_SOC_DAPM_SUPPLY("DMIC34 Power", NAU8824_REG_BIAS_ADJ,
656 NAU8824_DMIC2_EN_SFT, 0, NULL, 0),
657 SND_SOC_DAPM_SUPPLY("DMIC Clock", SND_SOC_NOPM, 0, 0,
658 dmic_clock_control, SND_SOC_DAPM_POST_PMU),
659
660 SND_SOC_DAPM_SWITCH("DMIC1 Enable", SND_SOC_NOPM,
661 0, 0, &nau8824_adc_ch0_dmic),
662 SND_SOC_DAPM_SWITCH("DMIC2 Enable", SND_SOC_NOPM,
663 0, 0, &nau8824_adc_ch1_dmic),
664 SND_SOC_DAPM_SWITCH("DMIC3 Enable", SND_SOC_NOPM,
665 0, 0, &nau8824_adc_ch2_dmic),
666 SND_SOC_DAPM_SWITCH("DMIC4 Enable", SND_SOC_NOPM,
667 0, 0, &nau8824_adc_ch3_dmic),
668
669 SND_SOC_DAPM_MIXER("Left ADC", NAU8824_REG_POWER_UP_CONTROL,
670 12, 0, nau8824_adc_left_mixer,
671 ARRAY_SIZE(nau8824_adc_left_mixer)),
672 SND_SOC_DAPM_MIXER("Right ADC", NAU8824_REG_POWER_UP_CONTROL,
673 13, 0, nau8824_adc_right_mixer,
674 ARRAY_SIZE(nau8824_adc_right_mixer)),
675
676 SND_SOC_DAPM_ADC("ADCL", NULL, NAU8824_REG_ANALOG_ADC_2,
677 NAU8824_ADCL_EN_SFT, 0),
678 SND_SOC_DAPM_ADC("ADCR", NULL, NAU8824_REG_ANALOG_ADC_2,
679 NAU8824_ADCR_EN_SFT, 0),
680
681 SND_SOC_DAPM_AIF_OUT("AIFTX", "Capture", 0, SND_SOC_NOPM, 0, 0),
682 SND_SOC_DAPM_AIF_IN("AIFRX", "Playback", 0, SND_SOC_NOPM, 0, 0),
683
684 SND_SOC_DAPM_DAC("DACL", NULL, NAU8824_REG_RDAC,
685 NAU8824_DACL_EN_SFT, 0),
686 SND_SOC_DAPM_SUPPLY("DACL Clock", NAU8824_REG_RDAC,
687 NAU8824_DACL_CLK_SFT, 0, NULL, 0),
688 SND_SOC_DAPM_DAC("DACR", NULL, NAU8824_REG_RDAC,
689 NAU8824_DACR_EN_SFT, 0),
690 SND_SOC_DAPM_SUPPLY("DACR Clock", NAU8824_REG_RDAC,
691 NAU8824_DACR_CLK_SFT, 0, NULL, 0),
692
693 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacl_mux),
694 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &nau8824_dacr_mux),
695
696 SND_SOC_DAPM_PGA_S("Output DACL", 0, NAU8824_REG_CHARGE_PUMP_CONTROL,
697 8, 1, nau8824_output_dac_event,
698 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
699 SND_SOC_DAPM_PGA_S("Output DACR", 0, NAU8824_REG_CHARGE_PUMP_CONTROL,
700 9, 1, nau8824_output_dac_event,
701 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
702
703 SND_SOC_DAPM_PGA_S("ClassD", 0, NAU8824_REG_CLASSD_GAIN_1,
704 NAU8824_CLASSD_EN_SFT, 0, nau8824_spk_event,
705 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
706
707 SND_SOC_DAPM_MIXER("Left Headphone", NAU8824_REG_CLASSG,
708 NAU8824_CLASSG_LDAC_EN_SFT, 0, nau8824_hp_left_mixer,
709 ARRAY_SIZE(nau8824_hp_left_mixer)),
710 SND_SOC_DAPM_MIXER("Right Headphone", NAU8824_REG_CLASSG,
711 NAU8824_CLASSG_RDAC_EN_SFT, 0, nau8824_hp_right_mixer,
712 ARRAY_SIZE(nau8824_hp_right_mixer)),
713 SND_SOC_DAPM_PGA_S("Charge Pump", 1, NAU8824_REG_CHARGE_PUMP_CONTROL,
714 NAU8824_CHARGE_PUMP_EN_SFT, 0, nau8824_pump_event,
715 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
716 SND_SOC_DAPM_PGA("Output Driver L",
717 NAU8824_REG_POWER_UP_CONTROL, 3, 0, NULL, 0),
718 SND_SOC_DAPM_PGA("Output Driver R",
719 NAU8824_REG_POWER_UP_CONTROL, 2, 0, NULL, 0),
720 SND_SOC_DAPM_PGA("Main Driver L",
721 NAU8824_REG_POWER_UP_CONTROL, 1, 0, NULL, 0),
722 SND_SOC_DAPM_PGA("Main Driver R",
723 NAU8824_REG_POWER_UP_CONTROL, 0, 0, NULL, 0),
724 SND_SOC_DAPM_PGA("HP Boost Driver", NAU8824_REG_BOOST,
725 NAU8824_HP_BOOST_DIS_SFT, 1, NULL, 0),
726 SND_SOC_DAPM_PGA("Class G", NAU8824_REG_CLASSG,
727 NAU8824_CLASSG_EN_SFT, 0, NULL, 0),
728
729 SND_SOC_DAPM_OUTPUT("SPKOUTL"),
730 SND_SOC_DAPM_OUTPUT("SPKOUTR"),
731 SND_SOC_DAPM_OUTPUT("HPOL"),
732 SND_SOC_DAPM_OUTPUT("HPOR"),
733 };
734
735 static const struct snd_soc_dapm_route nau8824_dapm_routes[] = {
736 {"DMIC1 Enable", "Switch", "DMIC1"},
737 {"DMIC2 Enable", "Switch", "DMIC2"},
738 {"DMIC3 Enable", "Switch", "DMIC3"},
739 {"DMIC4 Enable", "Switch", "DMIC4"},
740
741 {"DMIC1", NULL, "DMIC12 Power"},
742 {"DMIC2", NULL, "DMIC12 Power"},
743 {"DMIC3", NULL, "DMIC34 Power"},
744 {"DMIC4", NULL, "DMIC34 Power"},
745 {"DMIC12 Power", NULL, "DMIC Clock"},
746 {"DMIC34 Power", NULL, "DMIC Clock"},
747
748 {"Left ADC", "MIC Switch", "MIC1"},
749 {"Left ADC", "HSMIC Switch", "HSMIC1"},
750 {"Right ADC", "MIC Switch", "MIC2"},
751 {"Right ADC", "HSMIC Switch", "HSMIC2"},
752
753 {"ADCL", NULL, "Left ADC"},
754 {"ADCR", NULL, "Right ADC"},
755
756 {"AIFTX", NULL, "MICBIAS"},
757 {"AIFTX", NULL, "ADCL"},
758 {"AIFTX", NULL, "ADCR"},
759 {"AIFTX", NULL, "DMIC1 Enable"},
760 {"AIFTX", NULL, "DMIC2 Enable"},
761 {"AIFTX", NULL, "DMIC3 Enable"},
762 {"AIFTX", NULL, "DMIC4 Enable"},
763
764 {"AIFTX", NULL, "System Clock"},
765 {"AIFRX", NULL, "System Clock"},
766
767 {"DACL", NULL, "AIFRX"},
768 {"DACL", NULL, "DACL Clock"},
769 {"DACR", NULL, "AIFRX"},
770 {"DACR", NULL, "DACR Clock"},
771
772 {"DACL Mux", "DACL", "DACL"},
773 {"DACL Mux", "DACR", "DACR"},
774 {"DACR Mux", "DACL", "DACL"},
775 {"DACR Mux", "DACR", "DACR"},
776
777 {"Output DACL", NULL, "DACL Mux"},
778 {"Output DACR", NULL, "DACR Mux"},
779
780 {"ClassD", NULL, "Output DACL"},
781 {"ClassD", NULL, "Output DACR"},
782
783 {"Left Headphone", "DAC Left Switch", "Output DACL"},
784 {"Left Headphone", "DAC Right Switch", "Output DACR"},
785 {"Right Headphone", "DAC Left Switch", "Output DACL"},
786 {"Right Headphone", "DAC Right Switch", "Output DACR"},
787
788 {"Charge Pump", NULL, "Left Headphone"},
789 {"Charge Pump", NULL, "Right Headphone"},
790 {"Output Driver L", NULL, "Charge Pump"},
791 {"Output Driver R", NULL, "Charge Pump"},
792 {"Main Driver L", NULL, "Output Driver L"},
793 {"Main Driver R", NULL, "Output Driver R"},
794 {"Class G", NULL, "Main Driver L"},
795 {"Class G", NULL, "Main Driver R"},
796 {"HP Boost Driver", NULL, "Class G"},
797
798 {"SPKOUTL", NULL, "ClassD"},
799 {"SPKOUTR", NULL, "ClassD"},
800 {"HPOL", NULL, "HP Boost Driver"},
801 {"HPOR", NULL, "HP Boost Driver"},
802 };
803
804 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824)
805 {
806 struct snd_soc_jack *jack = nau8824->jack;
807 bool insert = false;
808
809 if (nau8824->irq && jack)
810 insert = jack->status & SND_JACK_HEADPHONE;
811
812 return insert;
813 }
814
815 static void nau8824_int_status_clear_all(struct regmap *regmap)
816 {
817 int active_irq, clear_irq, i;
818
819 /* Reset the intrruption status from rightmost bit if the corres-
820 * ponding irq event occurs.
821 */
822 regmap_read(regmap, NAU8824_REG_IRQ, &active_irq);
823 for (i = 0; i < NAU8824_REG_DATA_LEN; i++) {
824 clear_irq = (0x1 << i);
825 if (active_irq & clear_irq)
826 regmap_write(regmap,
827 NAU8824_REG_CLEAR_INT_REG, clear_irq);
828 }
829 }
830
831 static void nau8824_dapm_disable_pin(struct nau8824 *nau8824, const char *pin)
832 {
833 struct snd_soc_dapm_context *dapm = nau8824->dapm;
834 const char *prefix = dapm->component->name_prefix;
835 char prefixed_pin[80];
836
837 if (prefix) {
838 snprintf(prefixed_pin, sizeof(prefixed_pin), "%s %s",
839 prefix, pin);
840 snd_soc_dapm_disable_pin(dapm, prefixed_pin);
841 } else {
842 snd_soc_dapm_disable_pin(dapm, pin);
843 }
844 }
845
846 static void nau8824_dapm_enable_pin(struct nau8824 *nau8824, const char *pin)
847 {
848 struct snd_soc_dapm_context *dapm = nau8824->dapm;
849 const char *prefix = dapm->component->name_prefix;
850 char prefixed_pin[80];
851
852 if (prefix) {
853 snprintf(prefixed_pin, sizeof(prefixed_pin), "%s %s",
854 prefix, pin);
855 snd_soc_dapm_force_enable_pin(dapm, prefixed_pin);
856 } else {
857 snd_soc_dapm_force_enable_pin(dapm, pin);
858 }
859 }
860
861 static void nau8824_eject_jack(struct nau8824 *nau8824)
862 {
863 struct snd_soc_dapm_context *dapm = nau8824->dapm;
864 struct regmap *regmap = nau8824->regmap;
865
866 /* Clear all interruption status */
867 nau8824_int_status_clear_all(regmap);
868
869 nau8824_dapm_disable_pin(nau8824, "SAR");
870 nau8824_dapm_disable_pin(nau8824, "MICBIAS");
871 snd_soc_dapm_sync(dapm);
872
873 /* Enable the insertion interruption, disable the ejection
874 * interruption, and then bypass de-bounce circuit.
875 */
876 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
877 NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS |
878 NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS,
879 NAU8824_IRQ_KEY_RELEASE_DIS | NAU8824_IRQ_KEY_SHORT_PRESS_DIS |
880 NAU8824_IRQ_EJECT_DIS);
881 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1,
882 NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN,
883 NAU8824_IRQ_INSERT_EN);
884 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
885 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
886
887 /* Close clock for jack type detection at manual mode */
888 if (dapm->bias_level < SND_SOC_BIAS_PREPARE)
889 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
890 }
891
892 static void nau8824_jdet_work(struct work_struct *work)
893 {
894 struct nau8824 *nau8824 = container_of(
895 work, struct nau8824, jdet_work);
896 struct snd_soc_dapm_context *dapm = nau8824->dapm;
897 struct regmap *regmap = nau8824->regmap;
898 int adc_value, event = 0, event_mask = 0;
899
900 nau8824_dapm_enable_pin(nau8824, "MICBIAS");
901 nau8824_dapm_enable_pin(nau8824, "SAR");
902 snd_soc_dapm_sync(dapm);
903
904 msleep(100);
905
906 regmap_read(regmap, NAU8824_REG_SAR_ADC_DATA_OUT, &adc_value);
907 adc_value = adc_value & NAU8824_SAR_ADC_DATA_MASK;
908 dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value);
909 if (adc_value < HEADSET_SARADC_THD) {
910 event |= SND_JACK_HEADPHONE;
911
912 nau8824_dapm_disable_pin(nau8824, "SAR");
913 nau8824_dapm_disable_pin(nau8824, "MICBIAS");
914 snd_soc_dapm_sync(dapm);
915 } else {
916 event |= SND_JACK_HEADSET;
917 }
918 event_mask |= SND_JACK_HEADSET;
919 snd_soc_jack_report(nau8824->jack, event, event_mask);
920
921 /* Enable short key press and release interruption. */
922 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
923 NAU8824_IRQ_KEY_RELEASE_DIS |
924 NAU8824_IRQ_KEY_SHORT_PRESS_DIS, 0);
925
926 nau8824_sema_release(nau8824);
927 }
928
929 static void nau8824_setup_auto_irq(struct nau8824 *nau8824)
930 {
931 struct regmap *regmap = nau8824->regmap;
932
933 /* Enable jack ejection interruption. */
934 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING_1,
935 NAU8824_IRQ_INSERT_EN | NAU8824_IRQ_EJECT_EN,
936 NAU8824_IRQ_EJECT_EN);
937 regmap_update_bits(regmap, NAU8824_REG_INTERRUPT_SETTING,
938 NAU8824_IRQ_EJECT_DIS, 0);
939 /* Enable internal VCO needed for interruptions */
940 if (nau8824->dapm->bias_level < SND_SOC_BIAS_PREPARE)
941 nau8824_config_sysclk(nau8824, NAU8824_CLK_INTERNAL, 0);
942 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
943 NAU8824_JD_SLEEP_MODE, 0);
944 }
945
946 static int nau8824_button_decode(int value)
947 {
948 int buttons = 0;
949
950 /* The chip supports up to 8 buttons, but ALSA defines
951 * only 6 buttons.
952 */
953 if (value & BIT(0))
954 buttons |= SND_JACK_BTN_0;
955 if (value & BIT(1))
956 buttons |= SND_JACK_BTN_1;
957 if (value & BIT(2))
958 buttons |= SND_JACK_BTN_2;
959 if (value & BIT(3))
960 buttons |= SND_JACK_BTN_3;
961 if (value & BIT(4))
962 buttons |= SND_JACK_BTN_4;
963 if (value & BIT(5))
964 buttons |= SND_JACK_BTN_5;
965
966 return buttons;
967 }
968
969 #define NAU8824_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \
970 SND_JACK_BTN_2 | SND_JACK_BTN_3)
971
972 static irqreturn_t nau8824_interrupt(int irq, void *data)
973 {
974 struct nau8824 *nau8824 = (struct nau8824 *)data;
975 struct regmap *regmap = nau8824->regmap;
976 int active_irq, clear_irq = 0, event = 0, event_mask = 0;
977
978 if (regmap_read(regmap, NAU8824_REG_IRQ, &active_irq)) {
979 dev_err(nau8824->dev, "failed to read irq status\n");
980 return IRQ_NONE;
981 }
982 dev_dbg(nau8824->dev, "IRQ %x\n", active_irq);
983
984 if (active_irq & NAU8824_JACK_EJECTION_DETECTED) {
985 nau8824_eject_jack(nau8824);
986 event_mask |= SND_JACK_HEADSET;
987 clear_irq = NAU8824_JACK_EJECTION_DETECTED;
988 /* release semaphore held after resume,
989 * and cancel jack detection
990 */
991 nau8824_sema_release(nau8824);
992 cancel_work_sync(&nau8824->jdet_work);
993 } else if (active_irq & NAU8824_KEY_SHORT_PRESS_IRQ) {
994 int key_status, button_pressed;
995
996 regmap_read(regmap, NAU8824_REG_CLEAR_INT_REG,
997 &key_status);
998
999 /* lower 8 bits of the register are for pressed keys */
1000 button_pressed = nau8824_button_decode(key_status);
1001
1002 event |= button_pressed;
1003 dev_dbg(nau8824->dev, "button %x pressed\n", event);
1004 event_mask |= NAU8824_BUTTONS;
1005 clear_irq = NAU8824_KEY_SHORT_PRESS_IRQ;
1006 } else if (active_irq & NAU8824_KEY_RELEASE_IRQ) {
1007 event_mask = NAU8824_BUTTONS;
1008 clear_irq = NAU8824_KEY_RELEASE_IRQ;
1009 } else if (active_irq & NAU8824_JACK_INSERTION_DETECTED) {
1010 /* Turn off insertion interruption at manual mode */
1011 regmap_update_bits(regmap,
1012 NAU8824_REG_INTERRUPT_SETTING,
1013 NAU8824_IRQ_INSERT_DIS,
1014 NAU8824_IRQ_INSERT_DIS);
1015 regmap_update_bits(regmap,
1016 NAU8824_REG_INTERRUPT_SETTING_1,
1017 NAU8824_IRQ_INSERT_EN, 0);
1018 /* detect microphone and jack type */
1019 cancel_work_sync(&nau8824->jdet_work);
1020 schedule_work(&nau8824->jdet_work);
1021
1022 /* Enable interruption for jack type detection at audo
1023 * mode which can detect microphone and jack type.
1024 */
1025 nau8824_setup_auto_irq(nau8824);
1026 }
1027
1028 if (!clear_irq)
1029 clear_irq = active_irq;
1030 /* clears the rightmost interruption */
1031 regmap_write(regmap, NAU8824_REG_CLEAR_INT_REG, clear_irq);
1032
1033 if (event_mask)
1034 snd_soc_jack_report(nau8824->jack, event, event_mask);
1035
1036 return IRQ_HANDLED;
1037 }
1038
1039 static int nau8824_clock_check(struct nau8824 *nau8824,
1040 int stream, int rate, int osr)
1041 {
1042 int osrate;
1043
1044 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1045 if (osr >= ARRAY_SIZE(osr_dac_sel))
1046 return -EINVAL;
1047 osrate = osr_dac_sel[osr].osr;
1048 } else {
1049 if (osr >= ARRAY_SIZE(osr_adc_sel))
1050 return -EINVAL;
1051 osrate = osr_adc_sel[osr].osr;
1052 }
1053
1054 if (!osrate || rate * osr > CLK_DA_AD_MAX) {
1055 dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n");
1056 return -EINVAL;
1057 }
1058
1059 return 0;
1060 }
1061
1062 static int nau8824_hw_params(struct snd_pcm_substream *substream,
1063 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
1064 {
1065 struct snd_soc_component *component = dai->component;
1066 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1067 unsigned int val_len = 0, osr, ctrl_val, bclk_fs, bclk_div;
1068
1069 nau8824_sema_acquire(nau8824, HZ);
1070
1071 /* CLK_DAC or CLK_ADC = OSR * FS
1072 * DAC or ADC clock frequency is defined as Over Sampling Rate (OSR)
1073 * multiplied by the audio sample rate (Fs). Note that the OSR and Fs
1074 * values must be selected such that the maximum frequency is less
1075 * than 6.144 MHz.
1076 */
1077 nau8824->fs = params_rate(params);
1078 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1079 regmap_read(nau8824->regmap,
1080 NAU8824_REG_DAC_FILTER_CTRL_1, &osr);
1081 osr &= NAU8824_DAC_OVERSAMPLE_MASK;
1082 if (nau8824_clock_check(nau8824, substream->stream,
1083 nau8824->fs, osr))
1084 return -EINVAL;
1085 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1086 NAU8824_CLK_DAC_SRC_MASK,
1087 osr_dac_sel[osr].clk_src << NAU8824_CLK_DAC_SRC_SFT);
1088 } else {
1089 regmap_read(nau8824->regmap,
1090 NAU8824_REG_ADC_FILTER_CTRL, &osr);
1091 osr &= NAU8824_ADC_SYNC_DOWN_MASK;
1092 if (nau8824_clock_check(nau8824, substream->stream,
1093 nau8824->fs, osr))
1094 return -EINVAL;
1095 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1096 NAU8824_CLK_ADC_SRC_MASK,
1097 osr_adc_sel[osr].clk_src << NAU8824_CLK_ADC_SRC_SFT);
1098 }
1099
1100 /* make BCLK and LRC divde configuration if the codec as master. */
1101 regmap_read(nau8824->regmap,
1102 NAU8824_REG_PORT0_I2S_PCM_CTRL_2, &ctrl_val);
1103 if (ctrl_val & NAU8824_I2S_MS_MASTER) {
1104 /* get the bclk and fs ratio */
1105 bclk_fs = snd_soc_params_to_bclk(params) / nau8824->fs;
1106 if (bclk_fs <= 32)
1107 bclk_div = 0x3;
1108 else if (bclk_fs <= 64)
1109 bclk_div = 0x2;
1110 else if (bclk_fs <= 128)
1111 bclk_div = 0x1;
1112 else if (bclk_fs <= 256)
1113 bclk_div = 0;
1114 else
1115 return -EINVAL;
1116 regmap_update_bits(nau8824->regmap,
1117 NAU8824_REG_PORT0_I2S_PCM_CTRL_2,
1118 NAU8824_I2S_LRC_DIV_MASK | NAU8824_I2S_BLK_DIV_MASK,
1119 (bclk_div << NAU8824_I2S_LRC_DIV_SFT) | bclk_div);
1120 }
1121
1122 switch (params_width(params)) {
1123 case 16:
1124 val_len |= NAU8824_I2S_DL_16;
1125 break;
1126 case 20:
1127 val_len |= NAU8824_I2S_DL_20;
1128 break;
1129 case 24:
1130 val_len |= NAU8824_I2S_DL_24;
1131 break;
1132 case 32:
1133 val_len |= NAU8824_I2S_DL_32;
1134 break;
1135 default:
1136 return -EINVAL;
1137 }
1138
1139 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,
1140 NAU8824_I2S_DL_MASK, val_len);
1141
1142 nau8824_sema_release(nau8824);
1143
1144 return 0;
1145 }
1146
1147 static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1148 {
1149 struct snd_soc_component *component = dai->component;
1150 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1151 unsigned int ctrl1_val = 0, ctrl2_val = 0;
1152
1153 nau8824_sema_acquire(nau8824, HZ);
1154
1155 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1156 case SND_SOC_DAIFMT_CBM_CFM:
1157 ctrl2_val |= NAU8824_I2S_MS_MASTER;
1158 break;
1159 case SND_SOC_DAIFMT_CBS_CFS:
1160 break;
1161 default:
1162 return -EINVAL;
1163 }
1164
1165 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1166 case SND_SOC_DAIFMT_NB_NF:
1167 break;
1168 case SND_SOC_DAIFMT_IB_NF:
1169 ctrl1_val |= NAU8824_I2S_BP_INV;
1170 break;
1171 default:
1172 return -EINVAL;
1173 }
1174
1175 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1176 case SND_SOC_DAIFMT_I2S:
1177 ctrl1_val |= NAU8824_I2S_DF_I2S;
1178 break;
1179 case SND_SOC_DAIFMT_LEFT_J:
1180 ctrl1_val |= NAU8824_I2S_DF_LEFT;
1181 break;
1182 case SND_SOC_DAIFMT_RIGHT_J:
1183 ctrl1_val |= NAU8824_I2S_DF_RIGTH;
1184 break;
1185 case SND_SOC_DAIFMT_DSP_A:
1186 ctrl1_val |= NAU8824_I2S_DF_PCM_AB;
1187 break;
1188 case SND_SOC_DAIFMT_DSP_B:
1189 ctrl1_val |= NAU8824_I2S_DF_PCM_AB;
1190 ctrl1_val |= NAU8824_I2S_PCMB_EN;
1191 break;
1192 default:
1193 return -EINVAL;
1194 }
1195
1196 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,
1197 NAU8824_I2S_DF_MASK | NAU8824_I2S_BP_MASK |
1198 NAU8824_I2S_PCMB_EN, ctrl1_val);
1199 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2,
1200 NAU8824_I2S_MS_MASK, ctrl2_val);
1201
1202 nau8824_sema_release(nau8824);
1203
1204 return 0;
1205 }
1206
1207 /**
1208 * nau8824_set_tdm_slot - configure DAI TDM.
1209 * @dai: DAI
1210 * @tx_mask: Bitmask representing active TX slots. Ex.
1211 * 0xf for normal 4 channel TDM.
1212 * 0xf0 for shifted 4 channel TDM
1213 * @rx_mask: Bitmask [0:1] representing active DACR RX slots.
1214 * Bitmask [2:3] representing active DACL RX slots.
1215 * 00=CH0,01=CH1,10=CH2,11=CH3. Ex.
1216 * 0xf for DACL/R selecting TDM CH3.
1217 * 0xf0 for DACL/R selecting shifted TDM CH3.
1218 * @slots: Number of slots in use.
1219 * @slot_width: Width in bits for each slot.
1220 *
1221 * Configures a DAI for TDM operation. Only support 4 slots TDM.
1222 */
1223 static int nau8824_set_tdm_slot(struct snd_soc_dai *dai,
1224 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
1225 {
1226 struct snd_soc_component *component = dai->component;
1227 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1228 unsigned int tslot_l = 0, ctrl_val = 0;
1229
1230 if (slots > 4 || ((tx_mask & 0xf0) && (tx_mask & 0xf)) ||
1231 ((rx_mask & 0xf0) && (rx_mask & 0xf)) ||
1232 ((rx_mask & 0xf0) && (tx_mask & 0xf)) ||
1233 ((rx_mask & 0xf) && (tx_mask & 0xf0)))
1234 return -EINVAL;
1235
1236 ctrl_val |= (NAU8824_TDM_MODE | NAU8824_TDM_OFFSET_EN);
1237 if (tx_mask & 0xf0) {
1238 tslot_l = 4 * slot_width;
1239 ctrl_val |= (tx_mask >> 4);
1240 } else {
1241 ctrl_val |= tx_mask;
1242 }
1243 if (rx_mask & 0xf0)
1244 ctrl_val |= ((rx_mask >> 4) << NAU8824_TDM_DACR_RX_SFT);
1245 else
1246 ctrl_val |= (rx_mask << NAU8824_TDM_DACR_RX_SFT);
1247
1248 regmap_update_bits(nau8824->regmap, NAU8824_REG_TDM_CTRL,
1249 NAU8824_TDM_MODE | NAU8824_TDM_OFFSET_EN |
1250 NAU8824_TDM_DACL_RX_MASK | NAU8824_TDM_DACR_RX_MASK |
1251 NAU8824_TDM_TX_MASK, ctrl_val);
1252 regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_LEFT_TIME_SLOT,
1253 NAU8824_TSLOT_L_MASK, tslot_l);
1254
1255 return 0;
1256 }
1257
1258 /**
1259 * nau8824_calc_fll_param - Calculate FLL parameters.
1260 * @fll_in: external clock provided to codec.
1261 * @fs: sampling rate.
1262 * @fll_param: Pointer to structure of FLL parameters.
1263 *
1264 * Calculate FLL parameters to configure codec.
1265 *
1266 * Returns 0 for success or negative error code.
1267 */
1268 static int nau8824_calc_fll_param(unsigned int fll_in,
1269 unsigned int fs, struct nau8824_fll *fll_param)
1270 {
1271 u64 fvco, fvco_max;
1272 unsigned int fref, i, fvco_sel;
1273
1274 /* Ensure the reference clock frequency (FREF) is <= 13.5MHz by dividing
1275 * freq_in by 1, 2, 4, or 8 using FLL pre-scalar.
1276 * FREF = freq_in / NAU8824_FLL_REF_DIV_MASK
1277 */
1278 for (i = 0; i < ARRAY_SIZE(fll_pre_scalar); i++) {
1279 fref = fll_in / fll_pre_scalar[i].param;
1280 if (fref <= NAU_FREF_MAX)
1281 break;
1282 }
1283 if (i == ARRAY_SIZE(fll_pre_scalar))
1284 return -EINVAL;
1285 fll_param->clk_ref_div = fll_pre_scalar[i].val;
1286
1287 /* Choose the FLL ratio based on FREF */
1288 for (i = 0; i < ARRAY_SIZE(fll_ratio); i++) {
1289 if (fref >= fll_ratio[i].param)
1290 break;
1291 }
1292 if (i == ARRAY_SIZE(fll_ratio))
1293 return -EINVAL;
1294 fll_param->ratio = fll_ratio[i].val;
1295
1296 /* Calculate the frequency of DCO (FDCO) given freq_out = 256 * Fs.
1297 * FDCO must be within the 90MHz - 124MHz or the FFL cannot be
1298 * guaranteed across the full range of operation.
1299 * FDCO = freq_out * 2 * mclk_src_scaling
1300 */
1301 fvco_max = 0;
1302 fvco_sel = ARRAY_SIZE(mclk_src_scaling);
1303 for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) {
1304 fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param;
1305 if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX &&
1306 fvco_max < fvco) {
1307 fvco_max = fvco;
1308 fvco_sel = i;
1309 }
1310 }
1311 if (ARRAY_SIZE(mclk_src_scaling) == fvco_sel)
1312 return -EINVAL;
1313 fll_param->mclk_src = mclk_src_scaling[fvco_sel].val;
1314
1315 /* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional
1316 * input based on FDCO, FREF and FLL ratio.
1317 */
1318 fvco = div_u64(fvco_max << 16, fref * fll_param->ratio);
1319 fll_param->fll_int = (fvco >> 16) & 0x3FF;
1320 fll_param->fll_frac = fvco & 0xFFFF;
1321 return 0;
1322 }
1323
1324 static void nau8824_fll_apply(struct regmap *regmap,
1325 struct nau8824_fll *fll_param)
1326 {
1327 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1328 NAU8824_CLK_SRC_MASK | NAU8824_CLK_MCLK_SRC_MASK,
1329 NAU8824_CLK_SRC_MCLK | fll_param->mclk_src);
1330 regmap_update_bits(regmap, NAU8824_REG_FLL1,
1331 NAU8824_FLL_RATIO_MASK, fll_param->ratio);
1332 /* FLL 16-bit fractional input */
1333 regmap_write(regmap, NAU8824_REG_FLL2, fll_param->fll_frac);
1334 /* FLL 10-bit integer input */
1335 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1336 NAU8824_FLL_INTEGER_MASK, fll_param->fll_int);
1337 /* FLL pre-scaler */
1338 regmap_update_bits(regmap, NAU8824_REG_FLL4,
1339 NAU8824_FLL_REF_DIV_MASK,
1340 fll_param->clk_ref_div << NAU8824_FLL_REF_DIV_SFT);
1341 /* select divided VCO input */
1342 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1343 NAU8824_FLL_CLK_SW_MASK, NAU8824_FLL_CLK_SW_REF);
1344 /* Disable free-running mode */
1345 regmap_update_bits(regmap,
1346 NAU8824_REG_FLL6, NAU8824_DCO_EN, 0);
1347 if (fll_param->fll_frac) {
1348 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1349 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1350 NAU8824_FLL_FTR_SW_MASK,
1351 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1352 NAU8824_FLL_FTR_SW_FILTER);
1353 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1354 NAU8824_SDM_EN, NAU8824_SDM_EN);
1355 } else {
1356 regmap_update_bits(regmap, NAU8824_REG_FLL5,
1357 NAU8824_FLL_PDB_DAC_EN | NAU8824_FLL_LOOP_FTR_EN |
1358 NAU8824_FLL_FTR_SW_MASK, NAU8824_FLL_FTR_SW_ACCU);
1359 regmap_update_bits(regmap,
1360 NAU8824_REG_FLL6, NAU8824_SDM_EN, 0);
1361 }
1362 }
1363
1364 /* freq_out must be 256*Fs in order to achieve the best performance */
1365 static int nau8824_set_pll(struct snd_soc_component *component, int pll_id, int source,
1366 unsigned int freq_in, unsigned int freq_out)
1367 {
1368 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1369 struct nau8824_fll fll_param;
1370 int ret, fs;
1371
1372 fs = freq_out / 256;
1373 ret = nau8824_calc_fll_param(freq_in, fs, &fll_param);
1374 if (ret < 0) {
1375 dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in);
1376 return ret;
1377 }
1378 dev_dbg(nau8824->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",
1379 fll_param.mclk_src, fll_param.ratio, fll_param.fll_frac,
1380 fll_param.fll_int, fll_param.clk_ref_div);
1381
1382 nau8824_fll_apply(nau8824->regmap, &fll_param);
1383 mdelay(2);
1384 regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,
1385 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO);
1386
1387 return 0;
1388 }
1389
1390 static int nau8824_config_sysclk(struct nau8824 *nau8824,
1391 int clk_id, unsigned int freq)
1392 {
1393 struct regmap *regmap = nau8824->regmap;
1394
1395 switch (clk_id) {
1396 case NAU8824_CLK_DIS:
1397 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1398 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK);
1399 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1400 NAU8824_DCO_EN, 0);
1401 break;
1402
1403 case NAU8824_CLK_MCLK:
1404 nau8824_sema_acquire(nau8824, HZ);
1405 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1406 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_MCLK);
1407 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1408 NAU8824_DCO_EN, 0);
1409 nau8824_sema_release(nau8824);
1410 break;
1411
1412 case NAU8824_CLK_INTERNAL:
1413 regmap_update_bits(regmap, NAU8824_REG_FLL6,
1414 NAU8824_DCO_EN, NAU8824_DCO_EN);
1415 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1416 NAU8824_CLK_SRC_MASK, NAU8824_CLK_SRC_VCO);
1417 break;
1418
1419 case NAU8824_CLK_FLL_MCLK:
1420 nau8824_sema_acquire(nau8824, HZ);
1421 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1422 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_MCLK);
1423 nau8824_sema_release(nau8824);
1424 break;
1425
1426 case NAU8824_CLK_FLL_BLK:
1427 nau8824_sema_acquire(nau8824, HZ);
1428 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1429 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_BLK);
1430 nau8824_sema_release(nau8824);
1431 break;
1432
1433 case NAU8824_CLK_FLL_FS:
1434 nau8824_sema_acquire(nau8824, HZ);
1435 regmap_update_bits(regmap, NAU8824_REG_FLL3,
1436 NAU8824_FLL_CLK_SRC_MASK, NAU8824_FLL_CLK_SRC_FS);
1437 nau8824_sema_release(nau8824);
1438 break;
1439
1440 default:
1441 dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id);
1442 return -EINVAL;
1443 }
1444
1445 dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq,
1446 clk_id);
1447
1448 return 0;
1449 }
1450
1451 static int nau8824_set_sysclk(struct snd_soc_component *component,
1452 int clk_id, int source, unsigned int freq, int dir)
1453 {
1454 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1455
1456 return nau8824_config_sysclk(nau8824, clk_id, freq);
1457 }
1458
1459 static void nau8824_resume_setup(struct nau8824 *nau8824)
1460 {
1461 nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);
1462 if (nau8824->irq) {
1463 /* Clear all interruption status */
1464 nau8824_int_status_clear_all(nau8824->regmap);
1465 /* Enable jack detection at sleep mode, insertion detection,
1466 * and ejection detection.
1467 */
1468 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,
1469 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
1470 regmap_update_bits(nau8824->regmap,
1471 NAU8824_REG_INTERRUPT_SETTING_1,
1472 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN,
1473 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN);
1474 regmap_update_bits(nau8824->regmap,
1475 NAU8824_REG_INTERRUPT_SETTING,
1476 NAU8824_IRQ_EJECT_DIS | NAU8824_IRQ_INSERT_DIS, 0);
1477 }
1478 }
1479
1480 static int nau8824_set_bias_level(struct snd_soc_component *component,
1481 enum snd_soc_bias_level level)
1482 {
1483 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1484
1485 switch (level) {
1486 case SND_SOC_BIAS_ON:
1487 break;
1488
1489 case SND_SOC_BIAS_PREPARE:
1490 break;
1491
1492 case SND_SOC_BIAS_STANDBY:
1493 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1494 /* Setup codec configuration after resume */
1495 nau8824_resume_setup(nau8824);
1496 }
1497 break;
1498
1499 case SND_SOC_BIAS_OFF:
1500 regmap_update_bits(nau8824->regmap,
1501 NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff);
1502 regmap_update_bits(nau8824->regmap,
1503 NAU8824_REG_INTERRUPT_SETTING_1,
1504 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0);
1505 break;
1506 }
1507
1508 return 0;
1509 }
1510
1511 static int nau8824_component_probe(struct snd_soc_component *component)
1512 {
1513 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1514 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
1515
1516 nau8824->dapm = dapm;
1517
1518 return 0;
1519 }
1520
1521 static int __maybe_unused nau8824_suspend(struct snd_soc_component *component)
1522 {
1523 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1524
1525 if (nau8824->irq) {
1526 disable_irq(nau8824->irq);
1527 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
1528 }
1529 regcache_cache_only(nau8824->regmap, true);
1530 regcache_mark_dirty(nau8824->regmap);
1531
1532 return 0;
1533 }
1534
1535 static int __maybe_unused nau8824_resume(struct snd_soc_component *component)
1536 {
1537 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1538
1539 regcache_cache_only(nau8824->regmap, false);
1540 regcache_sync(nau8824->regmap);
1541 if (nau8824->irq) {
1542 /* Hold semaphore to postpone playback happening
1543 * until jack detection done.
1544 */
1545 nau8824_sema_acquire(nau8824, 0);
1546 enable_irq(nau8824->irq);
1547 }
1548
1549 return 0;
1550 }
1551
1552 static const struct snd_soc_component_driver nau8824_component_driver = {
1553 .probe = nau8824_component_probe,
1554 .set_sysclk = nau8824_set_sysclk,
1555 .set_pll = nau8824_set_pll,
1556 .set_bias_level = nau8824_set_bias_level,
1557 .suspend = nau8824_suspend,
1558 .resume = nau8824_resume,
1559 .controls = nau8824_snd_controls,
1560 .num_controls = ARRAY_SIZE(nau8824_snd_controls),
1561 .dapm_widgets = nau8824_dapm_widgets,
1562 .num_dapm_widgets = ARRAY_SIZE(nau8824_dapm_widgets),
1563 .dapm_routes = nau8824_dapm_routes,
1564 .num_dapm_routes = ARRAY_SIZE(nau8824_dapm_routes),
1565 .suspend_bias_off = 1,
1566 .idle_bias_on = 1,
1567 .use_pmdown_time = 1,
1568 .endianness = 1,
1569 .non_legacy_dai_naming = 1,
1570 };
1571
1572 static const struct snd_soc_dai_ops nau8824_dai_ops = {
1573 .hw_params = nau8824_hw_params,
1574 .set_fmt = nau8824_set_fmt,
1575 .set_tdm_slot = nau8824_set_tdm_slot,
1576 };
1577
1578 #define NAU8824_RATES SNDRV_PCM_RATE_8000_192000
1579 #define NAU8824_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
1580 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
1581
1582 static struct snd_soc_dai_driver nau8824_dai = {
1583 .name = NAU8824_CODEC_DAI,
1584 .playback = {
1585 .stream_name = "Playback",
1586 .channels_min = 1,
1587 .channels_max = 2,
1588 .rates = NAU8824_RATES,
1589 .formats = NAU8824_FORMATS,
1590 },
1591 .capture = {
1592 .stream_name = "Capture",
1593 .channels_min = 1,
1594 .channels_max = 2,
1595 .rates = NAU8824_RATES,
1596 .formats = NAU8824_FORMATS,
1597 },
1598 .ops = &nau8824_dai_ops,
1599 };
1600
1601 static const struct regmap_config nau8824_regmap_config = {
1602 .val_bits = NAU8824_REG_ADDR_LEN,
1603 .reg_bits = NAU8824_REG_DATA_LEN,
1604
1605 .max_register = NAU8824_REG_MAX,
1606 .readable_reg = nau8824_readable_reg,
1607 .writeable_reg = nau8824_writeable_reg,
1608 .volatile_reg = nau8824_volatile_reg,
1609
1610 .cache_type = REGCACHE_RBTREE,
1611 .reg_defaults = nau8824_reg_defaults,
1612 .num_reg_defaults = ARRAY_SIZE(nau8824_reg_defaults),
1613 };
1614
1615 /**
1616 * nau8824_enable_jack_detect - Specify a jack for event reporting
1617 *
1618 * @component: component to register the jack with
1619 * @jack: jack to use to report headset and button events on
1620 *
1621 * After this function has been called the headset insert/remove and button
1622 * events will be routed to the given jack. Jack can be null to stop
1623 * reporting.
1624 */
1625 int nau8824_enable_jack_detect(struct snd_soc_component *component,
1626 struct snd_soc_jack *jack)
1627 {
1628 struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);
1629 int ret;
1630
1631 nau8824->jack = jack;
1632 /* Initiate jack detection work queue */
1633 INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work);
1634 ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL,
1635 nau8824_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1636 "nau8824", nau8824);
1637 if (ret) {
1638 dev_err(nau8824->dev, "Cannot request irq %d (%d)\n",
1639 nau8824->irq, ret);
1640 }
1641
1642 return ret;
1643 }
1644 EXPORT_SYMBOL_GPL(nau8824_enable_jack_detect);
1645
1646 static void nau8824_reset_chip(struct regmap *regmap)
1647 {
1648 regmap_write(regmap, NAU8824_REG_RESET, 0x00);
1649 regmap_write(regmap, NAU8824_REG_RESET, 0x00);
1650 }
1651
1652 static void nau8824_setup_buttons(struct nau8824 *nau8824)
1653 {
1654 struct regmap *regmap = nau8824->regmap;
1655
1656 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1657 NAU8824_SAR_TRACKING_GAIN_MASK,
1658 nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT);
1659 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1660 NAU8824_SAR_COMPARE_TIME_MASK,
1661 nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT);
1662 regmap_update_bits(regmap, NAU8824_REG_SAR_ADC,
1663 NAU8824_SAR_SAMPLING_TIME_MASK,
1664 nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT);
1665
1666 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1667 NAU8824_LEVELS_NR_MASK,
1668 (nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT);
1669 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1670 NAU8824_HYSTERESIS_MASK,
1671 nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT);
1672 regmap_update_bits(regmap, NAU8824_REG_VDET_COEFFICIENT,
1673 NAU8824_SHORTKEY_DEBOUNCE_MASK,
1674 nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);
1675
1676 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_1,
1677 (nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]);
1678 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_2,
1679 (nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]);
1680 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_3,
1681 (nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]);
1682 regmap_write(regmap, NAU8824_REG_VDET_THRESHOLD_4,
1683 (nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]);
1684 }
1685
1686 static void nau8824_init_regs(struct nau8824 *nau8824)
1687 {
1688 struct regmap *regmap = nau8824->regmap;
1689
1690 /* Enable Bias/VMID/VMID Tieoff */
1691 regmap_update_bits(regmap, NAU8824_REG_BIAS_ADJ,
1692 NAU8824_VMID | NAU8824_VMID_SEL_MASK, NAU8824_VMID |
1693 (nau8824->vref_impedance << NAU8824_VMID_SEL_SFT));
1694 regmap_update_bits(regmap, NAU8824_REG_BOOST,
1695 NAU8824_GLOBAL_BIAS_EN, NAU8824_GLOBAL_BIAS_EN);
1696 mdelay(2);
1697 regmap_update_bits(regmap, NAU8824_REG_MIC_BIAS,
1698 NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage);
1699 /* Disable Boost Driver, Automatic Short circuit protection enable */
1700 regmap_update_bits(regmap, NAU8824_REG_BOOST,
1701 NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS |
1702 NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN,
1703 NAU8824_PRECHARGE_DIS | NAU8824_HP_BOOST_DIS |
1704 NAU8824_HP_BOOST_G_DIS | NAU8824_SHORT_SHUTDOWN_EN);
1705 /* Scaling for ADC and DAC clock */
1706 regmap_update_bits(regmap, NAU8824_REG_CLK_DIVIDER,
1707 NAU8824_CLK_ADC_SRC_MASK | NAU8824_CLK_DAC_SRC_MASK,
1708 (0x1 << NAU8824_CLK_ADC_SRC_SFT) |
1709 (0x1 << NAU8824_CLK_DAC_SRC_SFT));
1710 regmap_update_bits(regmap, NAU8824_REG_DAC_MUTE_CTRL,
1711 NAU8824_DAC_ZC_EN, NAU8824_DAC_ZC_EN);
1712 regmap_update_bits(regmap, NAU8824_REG_ENA_CTRL,
1713 NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN |
1714 NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN |
1715 NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN,
1716 NAU8824_DAC_CH1_EN | NAU8824_DAC_CH0_EN |
1717 NAU8824_ADC_CH0_EN | NAU8824_ADC_CH1_EN |
1718 NAU8824_ADC_CH2_EN | NAU8824_ADC_CH3_EN);
1719 regmap_update_bits(regmap, NAU8824_REG_CLK_GATING_ENA,
1720 NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN |
1721 NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN |
1722 NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN |
1723 NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN,
1724 NAU8824_CLK_ADC_CH23_EN | NAU8824_CLK_ADC_CH01_EN |
1725 NAU8824_CLK_DAC_CH1_EN | NAU8824_CLK_DAC_CH0_EN |
1726 NAU8824_CLK_I2S_EN | NAU8824_CLK_GAIN_EN |
1727 NAU8824_CLK_SAR_EN | NAU8824_CLK_DMIC_CH23_EN);
1728 /* Class G timer 64ms */
1729 regmap_update_bits(regmap, NAU8824_REG_CLASSG,
1730 NAU8824_CLASSG_TIMER_MASK,
1731 0x20 << NAU8824_CLASSG_TIMER_SFT);
1732 regmap_update_bits(regmap, NAU8824_REG_TRIM_SETTINGS,
1733 NAU8824_DRV_CURR_INC, NAU8824_DRV_CURR_INC);
1734 /* Disable DACR/L power */
1735 regmap_update_bits(regmap, NAU8824_REG_CHARGE_PUMP_CONTROL,
1736 NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN |
1737 NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL,
1738 NAU8824_SPKR_PULL_DOWN | NAU8824_SPKL_PULL_DOWN |
1739 NAU8824_POWER_DOWN_DACR | NAU8824_POWER_DOWN_DACL);
1740 /* Enable TESTDAC. This sets the analog DAC inputs to a '0' input
1741 * signal to avoid any glitches due to power up transients in both
1742 * the analog and digital DAC circuit.
1743 */
1744 regmap_update_bits(regmap, NAU8824_REG_ENABLE_LO,
1745 NAU8824_TEST_DAC_EN, NAU8824_TEST_DAC_EN);
1746 /* Config L/R channel */
1747 regmap_update_bits(regmap, NAU8824_REG_DAC_CH0_DGAIN_CTRL,
1748 NAU8824_DAC_CH0_SEL_MASK, NAU8824_DAC_CH0_SEL_I2S0);
1749 regmap_update_bits(regmap, NAU8824_REG_DAC_CH1_DGAIN_CTRL,
1750 NAU8824_DAC_CH1_SEL_MASK, NAU8824_DAC_CH1_SEL_I2S1);
1751 regmap_update_bits(regmap, NAU8824_REG_ENABLE_LO,
1752 NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN,
1753 NAU8824_DACR_HPR_EN | NAU8824_DACL_HPL_EN);
1754 /* Default oversampling/decimations settings are unusable
1755 * (audible hiss). Set it to something better.
1756 */
1757 regmap_update_bits(regmap, NAU8824_REG_ADC_FILTER_CTRL,
1758 NAU8824_ADC_SYNC_DOWN_MASK, NAU8824_ADC_SYNC_DOWN_64);
1759 regmap_update_bits(regmap, NAU8824_REG_DAC_FILTER_CTRL_1,
1760 NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_MASK,
1761 NAU8824_DAC_CICCLP_OFF | NAU8824_DAC_OVERSAMPLE_64);
1762 /* DAC clock delay 2ns, VREF */
1763 regmap_update_bits(regmap, NAU8824_REG_RDAC,
1764 NAU8824_RDAC_CLK_DELAY_MASK | NAU8824_RDAC_VREF_MASK,
1765 (0x2 << NAU8824_RDAC_CLK_DELAY_SFT) |
1766 (0x3 << NAU8824_RDAC_VREF_SFT));
1767 /* PGA input mode selection */
1768 regmap_update_bits(regmap, NAU8824_REG_FEPGA,
1769 NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN,
1770 NAU8824_FEPGA_MODEL_SHORT_EN | NAU8824_FEPGA_MODER_SHORT_EN);
1771 /* Digital microphone control */
1772 regmap_update_bits(regmap, NAU8824_REG_ANALOG_CONTROL_1,
1773 NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST,
1774 NAU8824_DMIC_CLK_DRV_STRG | NAU8824_DMIC_CLK_SLEW_FAST);
1775 regmap_update_bits(regmap, NAU8824_REG_JACK_DET_CTRL,
1776 NAU8824_JACK_LOGIC,
1777 /* jkdet_polarity - 1 is for active-low */
1778 nau8824->jkdet_polarity ? 0 : NAU8824_JACK_LOGIC);
1779 regmap_update_bits(regmap,
1780 NAU8824_REG_JACK_DET_CTRL, NAU8824_JACK_EJECT_DT_MASK,
1781 (nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT));
1782 if (nau8824->sar_threshold_num)
1783 nau8824_setup_buttons(nau8824);
1784 }
1785
1786 static int nau8824_setup_irq(struct nau8824 *nau8824)
1787 {
1788 /* Disable interruption before codec initiation done */
1789 regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,
1790 NAU8824_JD_SLEEP_MODE, NAU8824_JD_SLEEP_MODE);
1791 regmap_update_bits(nau8824->regmap,
1792 NAU8824_REG_INTERRUPT_SETTING, 0x3ff, 0x3ff);
1793 regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1,
1794 NAU8824_IRQ_EJECT_EN | NAU8824_IRQ_INSERT_EN, 0);
1795
1796 return 0;
1797 }
1798
1799 static void nau8824_print_device_properties(struct nau8824 *nau8824)
1800 {
1801 struct device *dev = nau8824->dev;
1802 int i;
1803
1804 dev_dbg(dev, "jkdet-polarity: %d\n", nau8824->jkdet_polarity);
1805 dev_dbg(dev, "micbias-voltage: %d\n", nau8824->micbias_voltage);
1806 dev_dbg(dev, "vref-impedance: %d\n", nau8824->vref_impedance);
1807
1808 dev_dbg(dev, "sar-threshold-num: %d\n", nau8824->sar_threshold_num);
1809 for (i = 0; i < nau8824->sar_threshold_num; i++)
1810 dev_dbg(dev, "sar-threshold[%d]=%x\n", i,
1811 nau8824->sar_threshold[i]);
1812
1813 dev_dbg(dev, "sar-hysteresis: %d\n", nau8824->sar_hysteresis);
1814 dev_dbg(dev, "sar-voltage: %d\n", nau8824->sar_voltage);
1815 dev_dbg(dev, "sar-compare-time: %d\n", nau8824->sar_compare_time);
1816 dev_dbg(dev, "sar-sampling-time: %d\n", nau8824->sar_sampling_time);
1817 dev_dbg(dev, "short-key-debounce: %d\n", nau8824->key_debounce);
1818 dev_dbg(dev, "jack-eject-debounce: %d\n",
1819 nau8824->jack_eject_debounce);
1820 }
1821
1822 static int nau8824_read_device_properties(struct device *dev,
1823 struct nau8824 *nau8824) {
1824 int ret;
1825
1826 ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity",
1827 &nau8824->jkdet_polarity);
1828 if (ret)
1829 nau8824->jkdet_polarity = 1;
1830 ret = device_property_read_u32(dev, "nuvoton,micbias-voltage",
1831 &nau8824->micbias_voltage);
1832 if (ret)
1833 nau8824->micbias_voltage = 6;
1834 ret = device_property_read_u32(dev, "nuvoton,vref-impedance",
1835 &nau8824->vref_impedance);
1836 if (ret)
1837 nau8824->vref_impedance = 2;
1838 ret = device_property_read_u32(dev, "nuvoton,sar-threshold-num",
1839 &nau8824->sar_threshold_num);
1840 if (ret)
1841 nau8824->sar_threshold_num = 4;
1842 ret = device_property_read_u32_array(dev, "nuvoton,sar-threshold",
1843 nau8824->sar_threshold, nau8824->sar_threshold_num);
1844 if (ret) {
1845 nau8824->sar_threshold[0] = 0x0a;
1846 nau8824->sar_threshold[1] = 0x14;
1847 nau8824->sar_threshold[2] = 0x26;
1848 nau8824->sar_threshold[3] = 0x73;
1849 }
1850 ret = device_property_read_u32(dev, "nuvoton,sar-hysteresis",
1851 &nau8824->sar_hysteresis);
1852 if (ret)
1853 nau8824->sar_hysteresis = 0;
1854 ret = device_property_read_u32(dev, "nuvoton,sar-voltage",
1855 &nau8824->sar_voltage);
1856 if (ret)
1857 nau8824->sar_voltage = 6;
1858 ret = device_property_read_u32(dev, "nuvoton,sar-compare-time",
1859 &nau8824->sar_compare_time);
1860 if (ret)
1861 nau8824->sar_compare_time = 1;
1862 ret = device_property_read_u32(dev, "nuvoton,sar-sampling-time",
1863 &nau8824->sar_sampling_time);
1864 if (ret)
1865 nau8824->sar_sampling_time = 1;
1866 ret = device_property_read_u32(dev, "nuvoton,short-key-debounce",
1867 &nau8824->key_debounce);
1868 if (ret)
1869 nau8824->key_debounce = 0;
1870 ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce",
1871 &nau8824->jack_eject_debounce);
1872 if (ret)
1873 nau8824->jack_eject_debounce = 1;
1874
1875 return 0;
1876 }
1877
1878 static int nau8824_i2c_probe(struct i2c_client *i2c,
1879 const struct i2c_device_id *id)
1880 {
1881 struct device *dev = &i2c->dev;
1882 struct nau8824 *nau8824 = dev_get_platdata(dev);
1883 int ret, value;
1884
1885 if (!nau8824) {
1886 nau8824 = devm_kzalloc(dev, sizeof(*nau8824), GFP_KERNEL);
1887 if (!nau8824)
1888 return -ENOMEM;
1889 ret = nau8824_read_device_properties(dev, nau8824);
1890 if (ret)
1891 return ret;
1892 }
1893 i2c_set_clientdata(i2c, nau8824);
1894
1895 nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config);
1896 if (IS_ERR(nau8824->regmap))
1897 return PTR_ERR(nau8824->regmap);
1898 nau8824->dev = dev;
1899 nau8824->irq = i2c->irq;
1900 sema_init(&nau8824->jd_sem, 1);
1901
1902 nau8824_print_device_properties(nau8824);
1903
1904 ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);
1905 if (ret < 0) {
1906 dev_err(dev, "Failed to read device id from the NAU8824: %d\n",
1907 ret);
1908 return ret;
1909 }
1910 nau8824_reset_chip(nau8824->regmap);
1911 nau8824_init_regs(nau8824);
1912
1913 if (i2c->irq)
1914 nau8824_setup_irq(nau8824);
1915
1916 return devm_snd_soc_register_component(dev,
1917 &nau8824_component_driver, &nau8824_dai, 1);
1918 }
1919
1920 static const struct i2c_device_id nau8824_i2c_ids[] = {
1921 { "nau8824", 0 },
1922 { }
1923 };
1924 MODULE_DEVICE_TABLE(i2c, nau8824_i2c_ids);
1925
1926 #ifdef CONFIG_OF
1927 static const struct of_device_id nau8824_of_ids[] = {
1928 { .compatible = "nuvoton,nau8824", },
1929 {}
1930 };
1931 MODULE_DEVICE_TABLE(of, nau8824_of_ids);
1932 #endif
1933
1934 #ifdef CONFIG_ACPI
1935 static const struct acpi_device_id nau8824_acpi_match[] = {
1936 { "10508824", 0 },
1937 {},
1938 };
1939 MODULE_DEVICE_TABLE(acpi, nau8824_acpi_match);
1940 #endif
1941
1942 static struct i2c_driver nau8824_i2c_driver = {
1943 .driver = {
1944 .name = "nau8824",
1945 .of_match_table = of_match_ptr(nau8824_of_ids),
1946 .acpi_match_table = ACPI_PTR(nau8824_acpi_match),
1947 },
1948 .probe = nau8824_i2c_probe,
1949 .id_table = nau8824_i2c_ids,
1950 };
1951 module_i2c_driver(nau8824_i2c_driver);
1952
1953
1954 MODULE_DESCRIPTION("ASoC NAU88L24 driver");
1955 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>");
1956 MODULE_LICENSE("GPL v2");
Linux with added FPC-III support