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[mirror_ubuntu-artful-kernel.git] / sound / soc / codecs / wm8580.c
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e88ba015
MB		 1/*
2 * wm8580.c -- WM8580 ALSA Soc Audio driver
3 *
6f7cb44b 4 * Copyright 2008, 2009 Wolfson Microelectronics PLC.
e88ba015
MB		 5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * Notes:
12 * The WM8580 is a multichannel codec with S/PDIF support, featuring six
13 * DAC channels and two ADC channels.
14 *
15 * Currently only the primary audio interface is supported - S/PDIF and
16 * the secondary audio interfaces are not.
17 */
18
19#include <linux/module.h>
20#include <linux/moduleparam.h>
e88ba015
MB		 21#include <linux/kernel.h>
22#include <linux/init.h>
23#include <linux/delay.h>
24#include <linux/pm.h>
25#include <linux/i2c.h>
26#include <linux/platform_device.h>
a583cd53 27#include <linux/regulator/consumer.h>
5a0e3ad6 28#include <linux/slab.h>
733eef3e 29#include <linux/of_device.h>
a583cd53 30
e88ba015
MB		 31#include <sound/core.h>
32#include <sound/pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/soc.h>
e88ba015
MB		 35#include <sound/tlv.h>
36#include <sound/initval.h>
37#include <asm/div64.h>
38
39#include "wm8580.h"
40
e88ba015
MB		 41/* WM8580 register space */
42#define WM8580_PLLA1 0x00
43#define WM8580_PLLA2 0x01
44#define WM8580_PLLA3 0x02
45#define WM8580_PLLA4 0x03
46#define WM8580_PLLB1 0x04
47#define WM8580_PLLB2 0x05
48#define WM8580_PLLB3 0x06
49#define WM8580_PLLB4 0x07
50#define WM8580_CLKSEL 0x08
51#define WM8580_PAIF1 0x09
52#define WM8580_PAIF2 0x0A
53#define WM8580_SAIF1 0x0B
54#define WM8580_PAIF3 0x0C
55#define WM8580_PAIF4 0x0D
56#define WM8580_SAIF2 0x0E
57#define WM8580_DAC_CONTROL1 0x0F
58#define WM8580_DAC_CONTROL2 0x10
59#define WM8580_DAC_CONTROL3 0x11
60#define WM8580_DAC_CONTROL4 0x12
61#define WM8580_DAC_CONTROL5 0x13
62#define WM8580_DIGITAL_ATTENUATION_DACL1 0x14
63#define WM8580_DIGITAL_ATTENUATION_DACR1 0x15
64#define WM8580_DIGITAL_ATTENUATION_DACL2 0x16
65#define WM8580_DIGITAL_ATTENUATION_DACR2 0x17
66#define WM8580_DIGITAL_ATTENUATION_DACL3 0x18
67#define WM8580_DIGITAL_ATTENUATION_DACR3 0x19
68#define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C
69#define WM8580_ADC_CONTROL1 0x1D
70#define WM8580_SPDTXCHAN0 0x1E
71#define WM8580_SPDTXCHAN1 0x1F
72#define WM8580_SPDTXCHAN2 0x20
73#define WM8580_SPDTXCHAN3 0x21
74#define WM8580_SPDTXCHAN4 0x22
75#define WM8580_SPDTXCHAN5 0x23
76#define WM8580_SPDMODE 0x24
77#define WM8580_INTMASK 0x25
78#define WM8580_GPO1 0x26
79#define WM8580_GPO2 0x27
80#define WM8580_GPO3 0x28
81#define WM8580_GPO4 0x29
82#define WM8580_GPO5 0x2A
83#define WM8580_INTSTAT 0x2B
84#define WM8580_SPDRXCHAN1 0x2C
85#define WM8580_SPDRXCHAN2 0x2D
86#define WM8580_SPDRXCHAN3 0x2E
87#define WM8580_SPDRXCHAN4 0x2F
88#define WM8580_SPDRXCHAN5 0x30
89#define WM8580_SPDSTAT 0x31
90#define WM8580_PWRDN1 0x32
91#define WM8580_PWRDN2 0x33
92#define WM8580_READBACK 0x34
93#define WM8580_RESET 0x35
94
6f7cb44b
MB		 95#define WM8580_MAX_REGISTER 0x35
96
6bfb6aa9
MB		 97#define WM8580_DACOSR 0x40
98
e88ba015
MB		 99/* PLLB4 (register 7h) */
100#define WM8580_PLLB4_MCLKOUTSRC_MASK 0x60
101#define WM8580_PLLB4_MCLKOUTSRC_PLLA 0x20
102#define WM8580_PLLB4_MCLKOUTSRC_PLLB 0x40
103#define WM8580_PLLB4_MCLKOUTSRC_OSC 0x60
104
105#define WM8580_PLLB4_CLKOUTSRC_MASK 0x180
106#define WM8580_PLLB4_CLKOUTSRC_PLLACLK 0x080
107#define WM8580_PLLB4_CLKOUTSRC_PLLBCLK 0x100
108#define WM8580_PLLB4_CLKOUTSRC_OSCCLK 0x180
109
110/* CLKSEL (register 8h) */
111#define WM8580_CLKSEL_DAC_CLKSEL_MASK 0x03
112#define WM8580_CLKSEL_DAC_CLKSEL_PLLA 0x01
113#define WM8580_CLKSEL_DAC_CLKSEL_PLLB 0x02
114
115/* AIF control 1 (registers 9h-bh) */
116#define WM8580_AIF_RATE_MASK 0x7
e88ba015 117#define WM8580_AIF_BCLKSEL_MASK 0x18
e88ba015
MB		 118
119#define WM8580_AIF_MS 0x20
120
121#define WM8580_AIF_CLKSRC_MASK 0xc0
122#define WM8580_AIF_CLKSRC_PLLA 0x40
123#define WM8580_AIF_CLKSRC_PLLB 0x40
124#define WM8580_AIF_CLKSRC_MCLK 0xc0
125
126/* AIF control 2 (registers ch-eh) */
127#define WM8580_AIF_FMT_MASK 0x03
128#define WM8580_AIF_FMT_RIGHTJ 0x00
129#define WM8580_AIF_FMT_LEFTJ 0x01
130#define WM8580_AIF_FMT_I2S 0x02
131#define WM8580_AIF_FMT_DSP 0x03
132
133#define WM8580_AIF_LENGTH_MASK 0x0c
134#define WM8580_AIF_LENGTH_16 0x00
135#define WM8580_AIF_LENGTH_20 0x04
136#define WM8580_AIF_LENGTH_24 0x08
137#define WM8580_AIF_LENGTH_32 0x0c
138
139#define WM8580_AIF_LRP 0x10
140#define WM8580_AIF_BCP 0x20
141
142/* Powerdown Register 1 (register 32h) */
143#define WM8580_PWRDN1_PWDN 0x001
144#define WM8580_PWRDN1_ALLDACPD 0x040
145
146/* Powerdown Register 2 (register 33h) */
147#define WM8580_PWRDN2_OSSCPD 0x001
148#define WM8580_PWRDN2_PLLAPD 0x002
149#define WM8580_PWRDN2_PLLBPD 0x004
150#define WM8580_PWRDN2_SPDIFPD 0x008
151#define WM8580_PWRDN2_SPDIFTXD 0x010
152#define WM8580_PWRDN2_SPDIFRXD 0x020
153
154#define WM8580_DAC_CONTROL5_MUTEALL 0x10
155
156/*
157 * wm8580 register cache
158 * We can't read the WM8580 register space when we
159 * are using 2 wire for device control, so we cache them instead.
160 */
161static const u16 wm8580_reg[] = {
162 0x0121, 0x017e, 0x007d, 0x0014, /*R3*/
163 0x0121, 0x017e, 0x007d, 0x0194, /*R7*/
a0968628 164 0x0010, 0x0002, 0x0002, 0x00c2, /*R11*/
e88ba015
MB		 165 0x0182, 0x0082, 0x000a, 0x0024, /*R15*/
166 0x0009, 0x0000, 0x00ff, 0x0000, /*R19*/
167 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R23*/
168 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R27*/
169 0x01f0, 0x0040, 0x0000, 0x0000, /*R31(0x1F)*/
170 0x0000, 0x0000, 0x0031, 0x000b, /*R35*/
171 0x0039, 0x0000, 0x0010, 0x0032, /*R39*/
172 0x0054, 0x0076, 0x0098, 0x0000, /*R43(0x2B)*/
173 0x0000, 0x0000, 0x0000, 0x0000, /*R47*/
174 0x0000, 0x0000, 0x005e, 0x003e, /*R51(0x33)*/
175 0x0000, 0x0000 /*R53*/
176};
177
6f7cb44b
MB		 178struct pll_state {
179 unsigned int in;
180 unsigned int out;
181};
182
a583cd53
MB		 183#define WM8580_NUM_SUPPLIES 3
184static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
185 "AVDD",
186 "DVDD",
187 "PVDD",
188};
189
6f7cb44b
MB		 190/* codec private data */
191struct wm8580_priv {
f0fba2ad 192 enum snd_soc_control_type control_type;
a583cd53 193 struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
6f7cb44b
MB		 194 struct pll_state a;
195 struct pll_state b;
c5607d8e 196 int sysclk[2];
6f7cb44b
MB		 197};
198
e88ba015
MB		 199static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
200
201static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
202 struct snd_ctl_elem_value *ucontrol)
203{
ccb077fd
MB		 204 struct soc_mixer_control *mc =
205 (struct soc_mixer_control *)kcontrol->private_value;
e88ba015 206 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f6f1eb10 207 u16 *reg_cache = codec->reg_cache;
ccb077fd
MB		 208 unsigned int reg = mc->reg;
209 unsigned int reg2 = mc->rreg;
e88ba015 210 int ret;
e88ba015
MB		 211
212 /* Clear the register cache so we write without VU set */
f6f1eb10
MB		 213 reg_cache[reg] = 0;
214 reg_cache[reg2] = 0;
e88ba015
MB		 215
216 ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
217 if (ret < 0)
218 return ret;
219
220 /* Now write again with the volume update bit set */
f6f1eb10
MB		 221 snd_soc_update_bits(codec, reg, 0x100, 0x100);
222 snd_soc_update_bits(codec, reg2, 0x100, 0x100);
e88ba015
MB		 223
224 return 0;
225}
226
e88ba015 227static const struct snd_kcontrol_new wm8580_snd_controls[] = {
0f9887d1
PU		 228SOC_DOUBLE_R_EXT_TLV("DAC1 Playback Volume",
229 WM8580_DIGITAL_ATTENUATION_DACL1,
230 WM8580_DIGITAL_ATTENUATION_DACR1,
231 0, 0xff, 0, snd_soc_get_volsw_2r, wm8580_out_vu, dac_tlv),
232SOC_DOUBLE_R_EXT_TLV("DAC2 Playback Volume",
233 WM8580_DIGITAL_ATTENUATION_DACL2,
234 WM8580_DIGITAL_ATTENUATION_DACR2,
235 0, 0xff, 0, snd_soc_get_volsw_2r, wm8580_out_vu, dac_tlv),
236SOC_DOUBLE_R_EXT_TLV("DAC3 Playback Volume",
237 WM8580_DIGITAL_ATTENUATION_DACL3,
238 WM8580_DIGITAL_ATTENUATION_DACR3,
239 0, 0xff, 0, snd_soc_get_volsw_2r, wm8580_out_vu, dac_tlv),
e88ba015
MB		 240
241SOC_SINGLE("DAC1 Deemphasis Switch", WM8580_DAC_CONTROL3, 0, 1, 0),
242SOC_SINGLE("DAC2 Deemphasis Switch", WM8580_DAC_CONTROL3, 1, 1, 0),
243SOC_SINGLE("DAC3 Deemphasis Switch", WM8580_DAC_CONTROL3, 2, 1, 0),
244
245SOC_DOUBLE("DAC1 Invert Switch", WM8580_DAC_CONTROL4, 0, 1, 1, 0),
246SOC_DOUBLE("DAC2 Invert Switch", WM8580_DAC_CONTROL4, 2, 3, 1, 0),
247SOC_DOUBLE("DAC3 Invert Switch", WM8580_DAC_CONTROL4, 4, 5, 1, 0),
248
249SOC_SINGLE("DAC ZC Switch", WM8580_DAC_CONTROL5, 5, 1, 0),
4f0ed9a5
MB		 250SOC_SINGLE("DAC1 Switch", WM8580_DAC_CONTROL5, 0, 1, 1),
251SOC_SINGLE("DAC2 Switch", WM8580_DAC_CONTROL5, 1, 1, 1),
252SOC_SINGLE("DAC3 Switch", WM8580_DAC_CONTROL5, 2, 1, 1),
e88ba015 253
dacfe9f2 254SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1),
6f341d14 255SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
e88ba015
MB		 256};
257
e88ba015
MB		 258static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
259SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
260SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
261SND_SOC_DAPM_DAC("DAC3", "Playback", WM8580_PWRDN1, 4, 1),
262
263SND_SOC_DAPM_OUTPUT("VOUT1L"),
264SND_SOC_DAPM_OUTPUT("VOUT1R"),
265SND_SOC_DAPM_OUTPUT("VOUT2L"),
266SND_SOC_DAPM_OUTPUT("VOUT2R"),
267SND_SOC_DAPM_OUTPUT("VOUT3L"),
268SND_SOC_DAPM_OUTPUT("VOUT3R"),
269
270SND_SOC_DAPM_ADC("ADC", "Capture", WM8580_PWRDN1, 1, 1),
271
272SND_SOC_DAPM_INPUT("AINL"),
273SND_SOC_DAPM_INPUT("AINR"),
274};
275
276static const struct snd_soc_dapm_route audio_map[] = {
277 { "VOUT1L", NULL, "DAC1" },
278 { "VOUT1R", NULL, "DAC1" },
279
280 { "VOUT2L", NULL, "DAC2" },
281 { "VOUT2R", NULL, "DAC2" },
282
283 { "VOUT3L", NULL, "DAC3" },
284 { "VOUT3R", NULL, "DAC3" },
285
286 { "ADC", NULL, "AINL" },
287 { "ADC", NULL, "AINR" },
288};
289
290static int wm8580_add_widgets(struct snd_soc_codec *codec)
291{
ce6120cc 292 struct snd_soc_dapm_context *dapm = &codec->dapm;
e88ba015 293
ce6120cc
LG		 294 snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets,
295 ARRAY_SIZE(wm8580_dapm_widgets));
296 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
e88ba015 297
e88ba015
MB		 298 return 0;
299}
300
301/* PLL divisors */
302struct _pll_div {
303 u32 prescale:1;
304 u32 postscale:1;
305 u32 freqmode:2;
306 u32 n:4;
307 u32 k:24;
308};
309
310/* The size in bits of the pll divide */
311#define FIXED_PLL_SIZE (1 << 22)
312
313/* PLL rate to output rate divisions */
314static struct {
315 unsigned int div;
316 unsigned int freqmode;
317 unsigned int postscale;
318} post_table[] = {
319 { 2, 0, 0 },
320 { 4, 0, 1 },
321 { 4, 1, 0 },
322 { 8, 1, 1 },
323 { 8, 2, 0 },
324 { 16, 2, 1 },
325 { 12, 3, 0 },
326 { 24, 3, 1 }
327};
328
329static int pll_factors(struct _pll_div *pll_div, unsigned int target,
330 unsigned int source)
331{
332 u64 Kpart;
333 unsigned int K, Ndiv, Nmod;
334 int i;
335
449bd54d 336 pr_debug("wm8580: PLL %uHz->%uHz\n", source, target);
e88ba015
MB		 337
338 /* Scale the output frequency up; the PLL should run in the
339 * region of 90-100MHz.
340 */
341 for (i = 0; i < ARRAY_SIZE(post_table); i++) {
342 if (target * post_table[i].div >= 90000000 &&
343 target * post_table[i].div <= 100000000) {
344 pll_div->freqmode = post_table[i].freqmode;
345 pll_div->postscale = post_table[i].postscale;
346 target *= post_table[i].div;
347 break;
348 }
349 }
350
351 if (i == ARRAY_SIZE(post_table)) {
352 printk(KERN_ERR "wm8580: Unable to scale output frequency "
353 "%u\n", target);
354 return -EINVAL;
355 }
356
357 Ndiv = target / source;
358
359 if (Ndiv < 5) {
360 source /= 2;
361 pll_div->prescale = 1;
362 Ndiv = target / source;
363 } else
364 pll_div->prescale = 0;
365
366 if ((Ndiv < 5) || (Ndiv > 13)) {
367 printk(KERN_ERR
449bd54d 368 "WM8580 N=%u outside supported range\n", Ndiv);
e88ba015
MB		 369 return -EINVAL;
370 }
371
372 pll_div->n = Ndiv;
373 Nmod = target % source;
374 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
375
376 do_div(Kpart, source);
377
378 K = Kpart & 0xFFFFFFFF;
379
380 pll_div->k = K;
381
382 pr_debug("PLL %x.%x prescale %d freqmode %d postscale %d\n",
383 pll_div->n, pll_div->k, pll_div->prescale, pll_div->freqmode,
384 pll_div->postscale);
385
386 return 0;
387}
388
85488037
MB		 389static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
390 int source, unsigned int freq_in, unsigned int freq_out)
e88ba015
MB		 391{
392 int offset;
393 struct snd_soc_codec *codec = codec_dai->codec;
b2c812e2 394 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
e88ba015
MB		 395 struct pll_state *state;
396 struct _pll_div pll_div;
397 unsigned int reg;
398 unsigned int pwr_mask;
399 int ret;
400
401 /* GCC isn't able to work out the ifs below for initialising/using
402 * pll_div so suppress warnings.
403 */
404 memset(&pll_div, 0, sizeof(pll_div));
405
406 switch (pll_id) {
407 case WM8580_PLLA:
408 state = &wm8580->a;
409 offset = 0;
410 pwr_mask = WM8580_PWRDN2_PLLAPD;
411 break;
412 case WM8580_PLLB:
413 state = &wm8580->b;
414 offset = 4;
415 pwr_mask = WM8580_PWRDN2_PLLBPD;
416 break;
417 default:
418 return -ENODEV;
419 }
420
421 if (freq_in && freq_out) {
422 ret = pll_factors(&pll_div, freq_out, freq_in);
423 if (ret != 0)
424 return ret;
425 }
426
427 state->in = freq_in;
428 state->out = freq_out;
429
430 /* Always disable the PLL - it is not safe to leave it running
431 * while reprogramming it.
432 */
f6f1eb10
MB		 433 reg = snd_soc_read(codec, WM8580_PWRDN2);
434 snd_soc_write(codec, WM8580_PWRDN2, reg | pwr_mask);
e88ba015
MB		 435
436 if (!freq_in || !freq_out)
437 return 0;
438
f6f1eb10 439 snd_soc_write(codec, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
5c0d38c9 440 snd_soc_write(codec, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0x1ff);
f6f1eb10 441 snd_soc_write(codec, WM8580_PLLA3 + offset,
e88ba015
MB		 442 (pll_div.k >> 18 & 0xf) | (pll_div.n << 4));
443
f6f1eb10 444 reg = snd_soc_read(codec, WM8580_PLLA4 + offset);
5c0d38c9 445 reg &= ~0x1b;
e88ba015 446 reg |= pll_div.prescale | pll_div.postscale << 1 |
ce88168f 447 pll_div.freqmode << 3;
e88ba015 448
f6f1eb10 449 snd_soc_write(codec, WM8580_PLLA4 + offset, reg);
e88ba015
MB		 450
451 /* All done, turn it on */
f6f1eb10
MB		 452 reg = snd_soc_read(codec, WM8580_PWRDN2);
453 snd_soc_write(codec, WM8580_PWRDN2, reg & ~pwr_mask);
e88ba015
MB		 454
455 return 0;
456}
457
c5607d8e
MB		 458static const int wm8580_sysclk_ratios[] = {
459 128, 192, 256, 384, 512, 768, 1152,
460};
461
e88ba015
MB		 462/*
463 * Set PCM DAI bit size and sample rate.
464 */
465static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
dee89c4d
MB		 466 struct snd_pcm_hw_params *params,
467 struct snd_soc_dai *dai)
e88ba015
MB		 468{
469 struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad 470 struct snd_soc_codec *codec = rtd->codec;
c5607d8e
MB		 471 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
472 u16 paifa = 0;
e231cab0 473 u16 paifb = 0;
6bfb6aa9 474 int i, ratio, osr;
e88ba015 475
e88ba015
MB		 476 /* bit size */
477 switch (params_format(params)) {
478 case SNDRV_PCM_FORMAT_S16_LE:
ba2772ed 479 paifa |= 0x8;
e88ba015
MB		 480 break;
481 case SNDRV_PCM_FORMAT_S20_3LE:
6b464321 482 paifa |= 0x0;
e88ba015
MB		 483 paifb |= WM8580_AIF_LENGTH_20;
484 break;
485 case SNDRV_PCM_FORMAT_S24_LE:
6b464321 486 paifa |= 0x0;
e88ba015
MB		 487 paifb |= WM8580_AIF_LENGTH_24;
488 break;
489 case SNDRV_PCM_FORMAT_S32_LE:
6b464321
JB		 490 paifa |= 0x0;
491 paifb |= WM8580_AIF_LENGTH_32;
e88ba015
MB		 492 break;
493 default:
494 return -EINVAL;
495 }
496
c5607d8e 497 /* Look up the SYSCLK ratio; accept only exact matches */
06286938 498 ratio = wm8580->sysclk[dai->driver->id] / params_rate(params);
c5607d8e
MB		 499 for (i = 0; i < ARRAY_SIZE(wm8580_sysclk_ratios); i++)
500 if (ratio == wm8580_sysclk_ratios[i])
501 break;
502 if (i == ARRAY_SIZE(wm8580_sysclk_ratios)) {
503 dev_err(codec->dev, "Invalid clock ratio %d/%d\n",
06286938 504 wm8580->sysclk[dai->driver->id], params_rate(params));
c5607d8e
MB		 505 return -EINVAL;
506 }
507 paifa |= i;
508 dev_dbg(codec->dev, "Running at %dfs with %dHz clock\n",
509 wm8580_sysclk_ratios[i], wm8580->sysclk[dai->driver->id]);
510
6bfb6aa9
MB		 511 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
512 switch (ratio) {
513 case 128:
514 case 192:
515 osr = WM8580_DACOSR;
516 dev_dbg(codec->dev, "Selecting 64x OSR\n");
517 break;
518 default:
519 osr = 0;
520 dev_dbg(codec->dev, "Selecting 128x OSR\n");
521 break;
522 }
523
524 snd_soc_update_bits(codec, WM8580_PAIF3, WM8580_DACOSR, osr);
525 }
526
c5607d8e 527 snd_soc_update_bits(codec, WM8580_PAIF1 + dai->driver->id,
ba2772ed
MB		 528 WM8580_AIF_RATE_MASK | WM8580_AIF_BCLKSEL_MASK,
529 paifa);
e231cab0
MB		 530 snd_soc_update_bits(codec, WM8580_PAIF3 + dai->driver->id,
531 WM8580_AIF_LENGTH_MASK, paifb);
e88ba015
MB		 532 return 0;
533}
534
535static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
536 unsigned int fmt)
537{
538 struct snd_soc_codec *codec = codec_dai->codec;
539 unsigned int aifa;
540 unsigned int aifb;
541 int can_invert_lrclk;
542
f0fba2ad
LG		 543 aifa = snd_soc_read(codec, WM8580_PAIF1 + codec_dai->driver->id);
544 aifb = snd_soc_read(codec, WM8580_PAIF3 + codec_dai->driver->id);
e88ba015
MB		 545
546 aifb &= ~(WM8580_AIF_FMT_MASK | WM8580_AIF_LRP | WM8580_AIF_BCP);
547
548 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
549 case SND_SOC_DAIFMT_CBS_CFS:
550 aifa &= ~WM8580_AIF_MS;
551 break;
552 case SND_SOC_DAIFMT_CBM_CFM:
553 aifa |= WM8580_AIF_MS;
554 break;
555 default:
556 return -EINVAL;
557 }
558
559 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
560 case SND_SOC_DAIFMT_I2S:
561 can_invert_lrclk = 1;
562 aifb |= WM8580_AIF_FMT_I2S;
563 break;
564 case SND_SOC_DAIFMT_RIGHT_J:
565 can_invert_lrclk = 1;
566 aifb |= WM8580_AIF_FMT_RIGHTJ;
567 break;
568 case SND_SOC_DAIFMT_LEFT_J:
569 can_invert_lrclk = 1;
570 aifb |= WM8580_AIF_FMT_LEFTJ;
571 break;
572 case SND_SOC_DAIFMT_DSP_A:
573 can_invert_lrclk = 0;
574 aifb |= WM8580_AIF_FMT_DSP;
575 break;
576 case SND_SOC_DAIFMT_DSP_B:
577 can_invert_lrclk = 0;
578 aifb |= WM8580_AIF_FMT_DSP;
579 aifb |= WM8580_AIF_LRP;
580 break;
581 default:
582 return -EINVAL;
583 }
584
585 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
586 case SND_SOC_DAIFMT_NB_NF:
587 break;
588
589 case SND_SOC_DAIFMT_IB_IF:
590 if (!can_invert_lrclk)
591 return -EINVAL;
592 aifb |= WM8580_AIF_BCP;
593 aifb |= WM8580_AIF_LRP;
594 break;
595
596 case SND_SOC_DAIFMT_IB_NF:
597 aifb |= WM8580_AIF_BCP;
598 break;
599
600 case SND_SOC_DAIFMT_NB_IF:
601 if (!can_invert_lrclk)
602 return -EINVAL;
603 aifb |= WM8580_AIF_LRP;
604 break;
605
606 default:
607 return -EINVAL;
608 }
609
f0fba2ad
LG		 610 snd_soc_write(codec, WM8580_PAIF1 + codec_dai->driver->id, aifa);
611 snd_soc_write(codec, WM8580_PAIF3 + codec_dai->driver->id, aifb);
e88ba015
MB		 612
613 return 0;
614}
615
616static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
617 int div_id, int div)
618{
619 struct snd_soc_codec *codec = codec_dai->codec;
620 unsigned int reg;
621
622 switch (div_id) {
623 case WM8580_MCLK:
f6f1eb10 624 reg = snd_soc_read(codec, WM8580_PLLB4);
e88ba015
MB		 625 reg &= ~WM8580_PLLB4_MCLKOUTSRC_MASK;
626
627 switch (div) {
628 case WM8580_CLKSRC_MCLK:
629 /* Input */
630 break;
631
632 case WM8580_CLKSRC_PLLA:
633 reg |= WM8580_PLLB4_MCLKOUTSRC_PLLA;
634 break;
635 case WM8580_CLKSRC_PLLB:
636 reg |= WM8580_PLLB4_MCLKOUTSRC_PLLB;
637 break;
638
639 case WM8580_CLKSRC_OSC:
640 reg |= WM8580_PLLB4_MCLKOUTSRC_OSC;
641 break;
642
643 default:
644 return -EINVAL;
645 }
f6f1eb10 646 snd_soc_write(codec, WM8580_PLLB4, reg);
e88ba015
MB		 647 break;
648
e88ba015 649 case WM8580_CLKOUTSRC:
f6f1eb10 650 reg = snd_soc_read(codec, WM8580_PLLB4);
e88ba015
MB		 651 reg &= ~WM8580_PLLB4_CLKOUTSRC_MASK;
652
653 switch (div) {
654 case WM8580_CLKSRC_NONE:
655 break;
656
657 case WM8580_CLKSRC_PLLA:
658 reg |= WM8580_PLLB4_CLKOUTSRC_PLLACLK;
659 break;
660
661 case WM8580_CLKSRC_PLLB:
662 reg |= WM8580_PLLB4_CLKOUTSRC_PLLBCLK;
663 break;
664
665 case WM8580_CLKSRC_OSC:
666 reg |= WM8580_PLLB4_CLKOUTSRC_OSCCLK;
667 break;
668
669 default:
670 return -EINVAL;
671 }
f6f1eb10 672 snd_soc_write(codec, WM8580_PLLB4, reg);
e88ba015
MB		 673 break;
674
675 default:
676 return -EINVAL;
677 }
678
679 return 0;
680}
681
c5607d8e
MB		 682static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
683 unsigned int freq, int dir)
684{
685 struct snd_soc_codec *codec = dai->codec;
686 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
687 int sel, sel_mask, sel_shift;
688
689 switch (dai->driver->id) {
c25edef8 690 case WM8580_DAI_PAIFRX:
c5607d8e
MB		 691 sel_mask = 0x3;
692 sel_shift = 0;
693 break;
694
c25edef8 695 case WM8580_DAI_PAIFTX:
c5607d8e
MB		 696 sel_mask = 0xc;
697 sel_shift = 2;
698 break;
699
700 default:
701 BUG_ON("Unknown DAI driver ID\n");
702 return -EINVAL;
703 }
704
705 switch (clk_id) {
706 case WM8580_CLKSRC_ADCMCLK:
06286938 707 if (dai->driver->id != WM8580_DAI_PAIFTX)
c5607d8e
MB		 708 return -EINVAL;
709 sel = 0 << sel_shift;
710 break;
711 case WM8580_CLKSRC_PLLA:
712 sel = 1 << sel_shift;
713 break;
714 case WM8580_CLKSRC_PLLB:
715 sel = 2 << sel_shift;
716 break;
717 case WM8580_CLKSRC_MCLK:
718 sel = 3 << sel_shift;
719 break;
720 default:
721 dev_err(codec->dev, "Unknown clock %d\n", clk_id);
722 return -EINVAL;
723 }
724
725 /* We really should validate PLL settings but not yet */
06286938 726 wm8580->sysclk[dai->driver->id] = freq;
c5607d8e 727
f538281c 728 return snd_soc_update_bits(codec, WM8580_CLKSEL, sel_mask, sel);
c5607d8e
MB		 729}
730
e88ba015
MB		 731static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
732{
733 struct snd_soc_codec *codec = codec_dai->codec;
734 unsigned int reg;
735
f6f1eb10 736 reg = snd_soc_read(codec, WM8580_DAC_CONTROL5);
e88ba015
MB		 737
738 if (mute)
739 reg |= WM8580_DAC_CONTROL5_MUTEALL;
740 else
741 reg &= ~WM8580_DAC_CONTROL5_MUTEALL;
742
f6f1eb10 743 snd_soc_write(codec, WM8580_DAC_CONTROL5, reg);
e88ba015
MB		 744
745 return 0;
746}
747
748static int wm8580_set_bias_level(struct snd_soc_codec *codec,
749 enum snd_soc_bias_level level)
750{
751 u16 reg;
752 switch (level) {
753 case SND_SOC_BIAS_ON:
754 case SND_SOC_BIAS_PREPARE:
6f7cb44b
MB		 755 break;
756
e88ba015 757 case SND_SOC_BIAS_STANDBY:
ce6120cc 758 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
6f7cb44b 759 /* Power up and get individual control of the DACs */
f6f1eb10 760 reg = snd_soc_read(codec, WM8580_PWRDN1);
6f7cb44b 761 reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD);
f6f1eb10 762 snd_soc_write(codec, WM8580_PWRDN1, reg);
6f7cb44b 763
25985edc 764 /* Make VMID high impedance */
f6f1eb10 765 reg = snd_soc_read(codec, WM8580_ADC_CONTROL1);
6f7cb44b 766 reg &= ~0x100;
f6f1eb10 767 snd_soc_write(codec, WM8580_ADC_CONTROL1, reg);
6f7cb44b 768 }
e88ba015 769 break;
6f7cb44b 770
e88ba015 771 case SND_SOC_BIAS_OFF:
f6f1eb10
MB		 772 reg = snd_soc_read(codec, WM8580_PWRDN1);
773 snd_soc_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN);
e88ba015
MB		 774 break;
775 }
ce6120cc 776 codec->dapm.bias_level = level;
e88ba015
MB		 777 return 0;
778}
779
780#define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
781 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
782
6335d055 783static struct snd_soc_dai_ops wm8580_dai_ops_playback = {
c5607d8e 784 .set_sysclk = wm8580_set_sysclk,
6335d055
EM		 785 .hw_params = wm8580_paif_hw_params,
786 .set_fmt = wm8580_set_paif_dai_fmt,
787 .set_clkdiv = wm8580_set_dai_clkdiv,
788 .set_pll = wm8580_set_dai_pll,
789 .digital_mute = wm8580_digital_mute,
790};
791
792static struct snd_soc_dai_ops wm8580_dai_ops_capture = {
c5607d8e 793 .set_sysclk = wm8580_set_sysclk,
6335d055
EM		 794 .hw_params = wm8580_paif_hw_params,
795 .set_fmt = wm8580_set_paif_dai_fmt,
796 .set_clkdiv = wm8580_set_dai_clkdiv,
797 .set_pll = wm8580_set_dai_pll,
798};
799
f0fba2ad 800static struct snd_soc_dai_driver wm8580_dai[] = {
e88ba015 801 {
f0fba2ad
LG		 802 .name = "wm8580-hifi-playback",
803 .id = WM8580_DAI_PAIFRX,
e88ba015
MB		 804 .playback = {
805 .stream_name = "Playback",
806 .channels_min = 1,
807 .channels_max = 6,
808 .rates = SNDRV_PCM_RATE_8000_192000,
809 .formats = WM8580_FORMATS,
810 },
6335d055 811 .ops = &wm8580_dai_ops_playback,
e88ba015
MB		 812 },
813 {
f0fba2ad
LG		 814 .name = "wm8580-hifi-capture",
815 .id = WM8580_DAI_PAIFTX,
e88ba015
MB		 816 .capture = {
817 .stream_name = "Capture",
818 .channels_min = 2,
819 .channels_max = 2,
820 .rates = SNDRV_PCM_RATE_8000_192000,
821 .formats = WM8580_FORMATS,
822 },
6335d055 823 .ops = &wm8580_dai_ops_capture,
e88ba015
MB		 824 },
825};
e88ba015 826
f0fba2ad 827static int wm8580_probe(struct snd_soc_codec *codec)
e88ba015 828{
f0fba2ad
LG		 829 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
830 int ret = 0,i;
6f7cb44b 831
f0fba2ad 832 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8580->control_type);
f6f1eb10
MB		 833 if (ret < 0) {
834 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
f0fba2ad 835 return ret;
f6f1eb10
MB		 836 }
837
a583cd53
MB		 838 for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++)
839 wm8580->supplies[i].supply = wm8580_supply_names[i];
840
841 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8580->supplies),
842 wm8580->supplies);
843 if (ret != 0) {
844 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
f0fba2ad 845 return ret;
a583cd53
MB		 846 }
847
848 ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
849 wm8580->supplies);
850 if (ret != 0) {
851 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
852 goto err_regulator_get;
853 }
854
6f7cb44b 855 /* Get the codec into a known state */
f6f1eb10 856 ret = snd_soc_write(codec, WM8580_RESET, 0);
6f7cb44b
MB		 857 if (ret != 0) {
858 dev_err(codec->dev, "Failed to reset codec: %d\n", ret);
a583cd53 859 goto err_regulator_enable;
6f7cb44b
MB		 860 }
861
6f7cb44b 862 wm8580_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
e88ba015 863
f0fba2ad
LG		 864 snd_soc_add_controls(codec, wm8580_snd_controls,
865 ARRAY_SIZE(wm8580_snd_controls));
866 wm8580_add_widgets(codec);
6f7cb44b
MB		 867
868 return 0;
869
a583cd53
MB		 870err_regulator_enable:
871 regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
872err_regulator_get:
873 regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
6f7cb44b
MB		 874 return ret;
875}
876
f0fba2ad
LG		 877/* power down chip */
878static int wm8580_remove(struct snd_soc_codec *codec)
6f7cb44b 879{
f0fba2ad
LG		 880 struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
881
882 wm8580_set_bias_level(codec, SND_SOC_BIAS_OFF);
883
a583cd53
MB		 884 regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
885 regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
f0fba2ad
LG		 886
887 return 0;
6f7cb44b
MB		 888}
889
f0fba2ad
LG		 890static struct snd_soc_codec_driver soc_codec_dev_wm8580 = {
891 .probe = wm8580_probe,
892 .remove = wm8580_remove,
893 .set_bias_level = wm8580_set_bias_level,
e5eec34c 894 .reg_cache_size = ARRAY_SIZE(wm8580_reg),
f0fba2ad 895 .reg_word_size = sizeof(u16),
0aa34b16 896 .reg_cache_default = wm8580_reg,
f0fba2ad
LG		 897};
898
733eef3e
MB		 899static const struct of_device_id wm8580_of_match[] = {
900 { .compatible = "wlf,wm8580" },
901 { },
902};
903
6f7cb44b 904#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
17be5522
JD		 905static int wm8580_i2c_probe(struct i2c_client *i2c,
906 const struct i2c_device_id *id)
e88ba015 907{
6f7cb44b 908 struct wm8580_priv *wm8580;
f0fba2ad 909 int ret;
6f7cb44b
MB		 910
911 wm8580 = kzalloc(sizeof(struct wm8580_priv), GFP_KERNEL);
912 if (wm8580 == NULL)
913 return -ENOMEM;
914
6f7cb44b 915 i2c_set_clientdata(i2c, wm8580);
f0fba2ad 916 wm8580->control_type = SND_SOC_I2C;
6f7cb44b 917
f0fba2ad
LG		 918 ret = snd_soc_register_codec(&i2c->dev,
919 &soc_codec_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai));
920 if (ret < 0)
921 kfree(wm8580);
922 return ret;
e88ba015
MB		 923}
924
17be5522 925static int wm8580_i2c_remove(struct i2c_client *client)
e88ba015 926{
f0fba2ad
LG		 927 snd_soc_unregister_codec(&client->dev);
928 kfree(i2c_get_clientdata(client));
e88ba015
MB		 929 return 0;
930}
931
17be5522
JD		 932static const struct i2c_device_id wm8580_i2c_id[] = {
933 { "wm8580", 0 },
934 { }
935};
936MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
e88ba015 937
e88ba015
MB		 938static struct i2c_driver wm8580_i2c_driver = {
939 .driver = {
722d0daf 940 .name = "wm8580",
e88ba015 941 .owner = THIS_MODULE,
733eef3e 942 .of_match_table = wm8580_of_match,
e88ba015 943 },
17be5522
JD		 944 .probe = wm8580_i2c_probe,
945 .remove = wm8580_i2c_remove,
946 .id_table = wm8580_i2c_id,
e88ba015 947};
6f7cb44b 948#endif
e88ba015 949
6f7cb44b 950static int __init wm8580_modinit(void)
17be5522 951{
f0fba2ad 952 int ret = 0;
17be5522 953
6f7cb44b 954#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
17be5522
JD		 955 ret = i2c_add_driver(&wm8580_i2c_driver);
956 if (ret != 0) {
6f7cb44b 957 pr_err("Failed to register WM8580 I2C driver: %d\n", ret);
e88ba015 958 }
e88ba015 959#endif
e88ba015 960
f0fba2ad 961 return ret;
e88ba015 962}
64089b84
MB		 963module_init(wm8580_modinit);
964
965static void __exit wm8580_exit(void)
966{
6f7cb44b
MB		 967#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
968 i2c_del_driver(&wm8580_i2c_driver);
969#endif
64089b84
MB		 970}
971module_exit(wm8580_exit);
972
e88ba015
MB		 973MODULE_DESCRIPTION("ASoC WM8580 driver");
974MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
975MODULE_LICENSE("GPL");
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