Commit | Line | Data |
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805d132d | 1 | /* |
2 | * max9867.c -- max9867 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2013-15 Maxim Integrated Products | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/delay.h> | |
12 | #include <linux/i2c.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/regmap.h> | |
15 | #include <sound/pcm_params.h> | |
16 | #include <sound/soc.h> | |
17 | #include <sound/tlv.h> | |
18 | #include "max9867.h" | |
19 | ||
20 | static const char *const max9867_spmode[] = { | |
21 | "Stereo Diff", "Mono Diff", | |
22 | "Stereo Cap", "Mono Cap", | |
23 | "Stereo Single", "Mono Single", | |
24 | "Stereo Single Fast", "Mono Single Fast" | |
25 | }; | |
26 | static const char *const max9867_sidetone_text[] = { | |
27 | "None", "Left", "Right", "LeftRight", "LeftRightDiv2", | |
28 | }; | |
29 | static const char *const max9867_filter_text[] = {"IIR", "FIR"}; | |
30 | ||
31 | static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7, | |
32 | max9867_filter_text); | |
33 | static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0, | |
34 | max9867_spmode); | |
35 | static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6, | |
36 | max9867_sidetone_text); | |
37 | static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0); | |
38 | static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1); | |
39 | static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1); | |
40 | static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1); | |
349fa18c | 41 | static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv, |
805d132d | 42 | 0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0), |
43 | 2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0), | |
349fa18c | 44 | ); |
805d132d | 45 | |
46 | static const struct snd_kcontrol_new max9867_snd_controls[] = { | |
47 | SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL, | |
48 | MAX9867_RIGHTVOL, 0, 63, 1), | |
49 | SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN, | |
50 | MAX9867_RIGHTMICGAIN, | |
51 | 0, 15, 1, max9860_capture_tlv), | |
52 | SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN, | |
53 | MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv), | |
54 | SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN, | |
55 | MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv), | |
56 | SOC_ENUM("Digital Sidetone Src", max9867_sidetone), | |
57 | SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1), | |
58 | SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0), | |
59 | SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1), | |
60 | SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL, | |
61 | 4, 15, 1, max9860_adc_left_tlv), | |
62 | SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL, | |
63 | 0, 15, 1, max9860_adc_right_tlv), | |
64 | SOC_ENUM("Speaker Mode", max9867_spkmode), | |
65 | SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0), | |
66 | SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0), | |
67 | SOC_ENUM("DSP Filter", max9867_filter), | |
68 | }; | |
69 | ||
70 | static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"}; | |
71 | ||
72 | static SOC_ENUM_SINGLE_DECL(max9867_mux_enum, | |
73 | MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT, | |
74 | max9867_mux); | |
75 | ||
76 | static const struct snd_kcontrol_new max9867_dapm_mux_controls = | |
77 | SOC_DAPM_ENUM("Route", max9867_mux_enum); | |
78 | ||
79 | static const struct snd_kcontrol_new max9867_left_dapm_control = | |
80 | SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0); | |
81 | static const struct snd_kcontrol_new max9867_right_dapm_control = | |
82 | SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0); | |
83 | static const struct snd_kcontrol_new max9867_line_dapm_control = | |
84 | SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1); | |
85 | ||
86 | static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = { | |
87 | SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0), | |
88 | SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0), | |
89 | SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0), | |
90 | SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), | |
91 | SND_SOC_DAPM_OUTPUT("HPOUT"), | |
92 | ||
93 | SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0), | |
94 | SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0), | |
95 | SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0), | |
96 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
97 | &max9867_dapm_mux_controls), | |
98 | ||
99 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), | |
100 | SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1, | |
101 | &max9867_left_dapm_control), | |
102 | SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1, | |
103 | &max9867_right_dapm_control), | |
104 | SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0, | |
105 | &max9867_line_dapm_control), | |
106 | SND_SOC_DAPM_INPUT("LINE_IN"), | |
107 | }; | |
108 | ||
109 | static const struct snd_soc_dapm_route max9867_audio_map[] = { | |
110 | {"Left DAC", NULL, "DAI_OUT"}, | |
111 | {"Right DAC", NULL, "DAI_OUT"}, | |
112 | {"Output Mixer", NULL, "Left DAC"}, | |
113 | {"Output Mixer", NULL, "Right DAC"}, | |
114 | {"HPOUT", NULL, "Output Mixer"}, | |
115 | ||
116 | {"Left ADC", NULL, "DAI_IN"}, | |
117 | {"Right ADC", NULL, "DAI_IN"}, | |
118 | {"Input Mixer", NULL, "Left ADC"}, | |
119 | {"Input Mixer", NULL, "Right ADC"}, | |
120 | {"Input Mux", "Line", "Input Mixer"}, | |
121 | {"Input Mux", "Mic", "Input Mixer"}, | |
122 | {"Input Mux", "Mic_Line", "Input Mixer"}, | |
123 | {"Right Line", "Switch", "Input Mux"}, | |
124 | {"Left Line", "Switch", "Input Mux"}, | |
125 | {"LINE_IN", NULL, "Left Line"}, | |
126 | {"LINE_IN", NULL, "Right Line"}, | |
127 | }; | |
128 | ||
129 | enum rates { | |
130 | pcm_rate_8, pcm_rate_16, pcm_rate_24, | |
131 | pcm_rate_32, pcm_rate_44, | |
132 | pcm_rate_48, max_pcm_rate, | |
133 | }; | |
134 | ||
1943b066 | 135 | static const struct ni_div_rates { |
805d132d | 136 | u32 mclk; |
137 | u16 ni[max_pcm_rate]; | |
138 | } ni_div[] = { | |
139 | {11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} }, | |
140 | {12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} }, | |
141 | {12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} }, | |
142 | {13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} }, | |
143 | {19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} }, | |
144 | {24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} }, | |
145 | {26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} }, | |
146 | {27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} }, | |
147 | }; | |
148 | ||
149 | static inline int get_ni_value(int mclk, int rate) | |
150 | { | |
151 | int i, ret = 0; | |
152 | ||
153 | /* find the closest rate index*/ | |
154 | for (i = 0; i < ARRAY_SIZE(ni_div); i++) { | |
155 | if (ni_div[i].mclk >= mclk) | |
156 | break; | |
157 | } | |
90966391 DC |
158 | if (i == ARRAY_SIZE(ni_div)) |
159 | return -EINVAL; | |
805d132d | 160 | |
161 | switch (rate) { | |
162 | case 8000: | |
163 | return ni_div[i].ni[pcm_rate_8]; | |
164 | case 16000: | |
165 | return ni_div[i].ni[pcm_rate_16]; | |
166 | case 32000: | |
167 | return ni_div[i].ni[pcm_rate_32]; | |
168 | case 44100: | |
169 | return ni_div[i].ni[pcm_rate_44]; | |
170 | case 48000: | |
171 | return ni_div[i].ni[pcm_rate_48]; | |
172 | default: | |
173 | pr_err("%s wrong rate %d\n", __func__, rate); | |
174 | ret = -EINVAL; | |
175 | } | |
176 | return ret; | |
177 | } | |
178 | ||
179 | static int max9867_dai_hw_params(struct snd_pcm_substream *substream, | |
180 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) | |
181 | { | |
182 | struct snd_soc_codec *codec = dai->codec; | |
183 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
127a9cbb AH |
184 | unsigned int ni_h, ni_l; |
185 | int value; | |
805d132d | 186 | |
187 | value = get_ni_value(max9867->sysclk, params_rate(params)); | |
188 | if (value < 0) | |
189 | return value; | |
190 | ||
191 | ni_h = (0xFF00 & value) >> 8; | |
192 | ni_l = 0x00FF & value; | |
193 | /* set up the ni value */ | |
194 | regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH, | |
195 | MAX9867_NI_HIGH_MASK, ni_h); | |
196 | regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW, | |
197 | MAX9867_NI_LOW_MASK, ni_l); | |
198 | if (!max9867->master) { | |
199 | /* | |
200 | * digital pll locks on to any externally supplied LRCLK signal | |
201 | * and also enable rapid lock mode. | |
202 | */ | |
203 | regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW, | |
204 | MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK); | |
205 | regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH, | |
206 | MAX9867_PLL, MAX9867_PLL); | |
207 | } else { | |
208 | unsigned long int bclk_rate, pclk_bclk_ratio; | |
209 | int bclk_value; | |
210 | ||
9dcc72ef | 211 | bclk_rate = params_rate(params) * 2 * params_width(params); |
805d132d | 212 | pclk_bclk_ratio = max9867->pclk/bclk_rate; |
9dcc72ef | 213 | switch (params_width(params)) { |
805d132d | 214 | case 8: |
215 | case 16: | |
b1461450 | 216 | switch (pclk_bclk_ratio) { |
217 | case 2: | |
805d132d | 218 | bclk_value = MAX9867_IFC1B_PCLK_2; |
b1461450 | 219 | break; |
220 | case 4: | |
805d132d | 221 | bclk_value = MAX9867_IFC1B_PCLK_4; |
b1461450 | 222 | break; |
223 | case 8: | |
805d132d | 224 | bclk_value = MAX9867_IFC1B_PCLK_8; |
b1461450 | 225 | break; |
226 | case 16: | |
805d132d | 227 | bclk_value = MAX9867_IFC1B_PCLK_16; |
b1461450 | 228 | break; |
229 | default: | |
230 | dev_err(codec->dev, | |
231 | "unsupported sampling rate\n"); | |
805d132d | 232 | return -EINVAL; |
233 | } | |
234 | break; | |
235 | case 24: | |
236 | bclk_value = MAX9867_IFC1B_24BIT; | |
237 | break; | |
238 | case 32: | |
239 | bclk_value = MAX9867_IFC1B_32BIT; | |
240 | break; | |
241 | default: | |
242 | dev_err(codec->dev, "unsupported sampling rate\n"); | |
243 | return -EINVAL; | |
244 | } | |
245 | regmap_update_bits(max9867->regmap, MAX9867_IFC1B, | |
246 | MAX9867_IFC1B_BCLK_MASK, bclk_value); | |
247 | } | |
248 | return 0; | |
249 | } | |
250 | ||
251 | static int max9867_prepare(struct snd_pcm_substream *substream, | |
252 | struct snd_soc_dai *dai) | |
253 | { | |
254 | struct snd_soc_codec *codec = dai->codec; | |
255 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
256 | ||
257 | regmap_update_bits(max9867->regmap, MAX9867_PWRMAN, | |
258 | MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | static int max9867_mute(struct snd_soc_dai *dai, int mute) | |
263 | { | |
264 | struct snd_soc_codec *codec = dai->codec; | |
265 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
266 | ||
267 | if (mute) | |
268 | regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL, | |
269 | MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK); | |
270 | else | |
271 | regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL, | |
272 | MAX9867_DAC_MUTE_MASK, 0); | |
273 | return 0; | |
274 | } | |
275 | ||
276 | static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
277 | int clk_id, unsigned int freq, int dir) | |
278 | { | |
279 | struct snd_soc_codec *codec = codec_dai->codec; | |
280 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
281 | int value = 0; | |
282 | ||
283 | /* Set the prescaler based on the master clock frequency*/ | |
284 | if (freq >= 10000000 && freq <= 20000000) { | |
285 | value |= MAX9867_PSCLK_10_20; | |
286 | max9867->pclk = freq; | |
287 | } else if (freq >= 20000000 && freq <= 40000000) { | |
288 | value |= MAX9867_PSCLK_20_40; | |
289 | max9867->pclk = freq/2; | |
290 | } else if (freq >= 40000000 && freq <= 60000000) { | |
291 | value |= MAX9867_PSCLK_40_60; | |
292 | max9867->pclk = freq/4; | |
293 | } else { | |
294 | pr_err("bad clock frequency %d", freq); | |
295 | return -EINVAL; | |
296 | } | |
297 | value = value << MAX9867_PSCLK_SHIFT; | |
298 | max9867->sysclk = freq; | |
299 | /* exact integer mode is not supported */ | |
300 | value &= ~MAX9867_FREQ_MASK; | |
301 | regmap_update_bits(max9867->regmap, MAX9867_SYSCLK, | |
302 | MAX9867_PSCLK_MASK, value); | |
303 | return 0; | |
304 | } | |
305 | ||
306 | static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai, | |
307 | unsigned int fmt) | |
308 | { | |
309 | struct snd_soc_codec *codec = codec_dai->codec; | |
310 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
311 | u8 iface1A = 0, iface1B = 0; | |
805d132d | 312 | |
313 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
314 | case SND_SOC_DAIFMT_CBM_CFM: | |
315 | max9867->master = 1; | |
316 | iface1A |= MAX9867_MASTER; | |
317 | break; | |
318 | case SND_SOC_DAIFMT_CBS_CFS: | |
319 | max9867->master = 0; | |
320 | iface1A &= ~MAX9867_MASTER; | |
321 | break; | |
322 | default: | |
323 | return -EINVAL; | |
324 | } | |
325 | ||
326 | /* for i2s compatible mode */ | |
327 | iface1A |= MAX9867_I2S_DLY; | |
328 | /* SDOUT goes to hiz state after all data is transferred */ | |
329 | iface1A |= MAX9867_SDOUT_HIZ; | |
330 | ||
331 | /* Clock inversion bits, BCI and WCI */ | |
332 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
333 | case SND_SOC_DAIFMT_NB_NF: | |
334 | break; | |
335 | case SND_SOC_DAIFMT_IB_IF: | |
336 | iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE; | |
337 | break; | |
338 | case SND_SOC_DAIFMT_IB_NF: | |
339 | iface1A |= MAX9867_BCI_MODE; | |
340 | break; | |
341 | case SND_SOC_DAIFMT_NB_IF: | |
342 | iface1A |= MAX9867_WCI_MODE; | |
343 | break; | |
344 | default: | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
9fe78b28 VK |
348 | regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A); |
349 | regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B); | |
805d132d | 350 | return 0; |
351 | } | |
352 | ||
eb59d73c | 353 | static const struct snd_soc_dai_ops max9867_dai_ops = { |
805d132d | 354 | .set_fmt = max9867_dai_set_fmt, |
355 | .set_sysclk = max9867_set_dai_sysclk, | |
356 | .prepare = max9867_prepare, | |
357 | .digital_mute = max9867_mute, | |
358 | .hw_params = max9867_dai_hw_params, | |
359 | }; | |
360 | ||
361 | #define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ | |
362 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
363 | #define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) | |
364 | ||
365 | static struct snd_soc_dai_driver max9867_dai[] = { | |
366 | { | |
367 | .name = "max9867-aif1", | |
368 | .playback = { | |
369 | .stream_name = "HiFi Playback", | |
370 | .channels_min = 1, | |
371 | .channels_max = 2, | |
372 | .rates = MAX9867_RATES, | |
373 | .formats = MAX9867_FORMATS, | |
374 | }, | |
375 | .capture = { | |
376 | .stream_name = "HiFi Capture", | |
377 | .channels_min = 1, | |
378 | .channels_max = 2, | |
379 | .rates = MAX9867_RATES, | |
380 | .formats = MAX9867_FORMATS, | |
381 | }, | |
382 | .ops = &max9867_dai_ops, | |
383 | } | |
384 | }; | |
385 | ||
386 | #ifdef CONFIG_PM_SLEEP | |
387 | static int max9867_suspend(struct device *dev) | |
388 | { | |
389 | struct max9867_priv *max9867 = dev_get_drvdata(dev); | |
390 | ||
391 | /* Drop down to power saving mode when system is suspended */ | |
392 | regmap_update_bits(max9867->regmap, MAX9867_PWRMAN, | |
393 | MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK); | |
394 | return 0; | |
395 | } | |
396 | ||
397 | static int max9867_resume(struct device *dev) | |
398 | { | |
399 | struct max9867_priv *max9867 = dev_get_drvdata(dev); | |
400 | ||
401 | regmap_update_bits(max9867->regmap, MAX9867_PWRMAN, | |
402 | MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK); | |
403 | return 0; | |
404 | } | |
405 | #endif | |
406 | ||
407 | static int max9867_probe(struct snd_soc_codec *codec) | |
408 | { | |
409 | struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec); | |
410 | ||
411 | dev_dbg(codec->dev, "max98090_probe\n"); | |
412 | max9867->codec = codec; | |
413 | return 0; | |
414 | } | |
415 | ||
a180ba45 | 416 | static const struct snd_soc_codec_driver max9867_codec = { |
805d132d | 417 | .probe = max9867_probe, |
e92b48aa KM |
418 | .component_driver = { |
419 | .controls = max9867_snd_controls, | |
420 | .num_controls = ARRAY_SIZE(max9867_snd_controls), | |
421 | .dapm_routes = max9867_audio_map, | |
422 | .num_dapm_routes = ARRAY_SIZE(max9867_audio_map), | |
423 | .dapm_widgets = max9867_dapm_widgets, | |
424 | .num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets), | |
425 | }, | |
805d132d | 426 | }; |
427 | ||
428 | static bool max9867_volatile_register(struct device *dev, unsigned int reg) | |
429 | { | |
430 | switch (reg) { | |
431 | case MAX9867_STATUS: | |
432 | case MAX9867_JACKSTATUS: | |
433 | case MAX9867_AUXHIGH: | |
434 | case MAX9867_AUXLOW: | |
435 | return true; | |
436 | default: | |
437 | return false; | |
438 | } | |
439 | } | |
440 | ||
250a99e7 | 441 | static const struct reg_default max9867_reg[] = { |
805d132d | 442 | { 0x04, 0x00 }, |
443 | { 0x05, 0x00 }, | |
444 | { 0x06, 0x00 }, | |
445 | { 0x07, 0x00 }, | |
446 | { 0x08, 0x00 }, | |
447 | { 0x09, 0x00 }, | |
448 | { 0x0A, 0x00 }, | |
449 | { 0x0B, 0x00 }, | |
450 | { 0x0C, 0x00 }, | |
451 | { 0x0D, 0x00 }, | |
452 | { 0x0E, 0x00 }, | |
453 | { 0x0F, 0x00 }, | |
454 | { 0x10, 0x00 }, | |
455 | { 0x11, 0x00 }, | |
456 | { 0x12, 0x00 }, | |
457 | { 0x13, 0x00 }, | |
458 | { 0x14, 0x00 }, | |
459 | { 0x15, 0x00 }, | |
460 | { 0x16, 0x00 }, | |
461 | { 0x17, 0x00 }, | |
462 | }; | |
463 | ||
250a99e7 | 464 | static const struct regmap_config max9867_regmap = { |
805d132d | 465 | .reg_bits = 8, |
466 | .val_bits = 8, | |
467 | .max_register = MAX9867_REVISION, | |
468 | .reg_defaults = max9867_reg, | |
469 | .num_reg_defaults = ARRAY_SIZE(max9867_reg), | |
470 | .volatile_reg = max9867_volatile_register, | |
471 | .cache_type = REGCACHE_RBTREE, | |
472 | }; | |
473 | ||
474 | static int max9867_i2c_probe(struct i2c_client *i2c, | |
475 | const struct i2c_device_id *id) | |
476 | { | |
477 | struct max9867_priv *max9867; | |
478 | int ret = 0, reg; | |
479 | ||
480 | max9867 = devm_kzalloc(&i2c->dev, | |
481 | sizeof(*max9867), GFP_KERNEL); | |
482 | if (!max9867) | |
483 | return -ENOMEM; | |
484 | ||
485 | i2c_set_clientdata(i2c, max9867); | |
486 | max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap); | |
487 | if (IS_ERR(max9867->regmap)) { | |
488 | ret = PTR_ERR(max9867->regmap); | |
489 | dev_err(&i2c->dev, | |
490 | "Failed to allocate regmap: %d\n", ret); | |
491 | return ret; | |
492 | } | |
493 | ret = regmap_read(max9867->regmap, | |
494 | MAX9867_REVISION, ®); | |
495 | if (ret < 0) { | |
496 | dev_err(&i2c->dev, "Failed to read: %d\n", ret); | |
497 | return ret; | |
498 | } | |
499 | dev_info(&i2c->dev, "device revision: %x\n", reg); | |
500 | ret = snd_soc_register_codec(&i2c->dev, &max9867_codec, | |
501 | max9867_dai, ARRAY_SIZE(max9867_dai)); | |
502 | if (ret < 0) { | |
503 | dev_err(&i2c->dev, "Failed to register codec: %d\n", ret); | |
504 | return ret; | |
505 | } | |
506 | return ret; | |
507 | } | |
508 | ||
509 | static int max9867_i2c_remove(struct i2c_client *client) | |
510 | { | |
511 | snd_soc_unregister_codec(&client->dev); | |
512 | return 0; | |
513 | } | |
514 | ||
515 | static const struct i2c_device_id max9867_i2c_id[] = { | |
516 | { "max9867", 0 }, | |
1b36e4a2 | 517 | { } |
805d132d | 518 | }; |
56af0e4c | 519 | MODULE_DEVICE_TABLE(i2c, max9867_i2c_id); |
805d132d | 520 | |
521 | static const struct of_device_id max9867_of_match[] = { | |
522 | { .compatible = "maxim,max9867", }, | |
523 | { } | |
524 | }; | |
56af0e4c | 525 | MODULE_DEVICE_TABLE(of, max9867_of_match); |
805d132d | 526 | |
527 | static const struct dev_pm_ops max9867_pm_ops = { | |
528 | SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume) | |
529 | }; | |
530 | ||
531 | static struct i2c_driver max9867_i2c_driver = { | |
532 | .driver = { | |
533 | .name = "max9867", | |
534 | .of_match_table = of_match_ptr(max9867_of_match), | |
535 | .pm = &max9867_pm_ops, | |
536 | }, | |
537 | .probe = max9867_i2c_probe, | |
538 | .remove = max9867_i2c_remove, | |
539 | .id_table = max9867_i2c_id, | |
540 | }; | |
541 | ||
542 | module_i2c_driver(max9867_i2c_driver); | |
543 | ||
544 | MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>"); | |
545 | MODULE_DESCRIPTION("ALSA SoC MAX9867 driver"); | |
546 | MODULE_LICENSE("GPL"); |