xref: /openbmc/linux/sound/soc/codecs/wm8903.c (revision 7de380ee)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * wm8903.c  --  WM8903 ALSA SoC Audio driver
4  *
5  * Copyright 2008-12 Wolfson Microelectronics
6  * Copyright 2011-2012 NVIDIA, Inc.
7  *
8  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
9  *
10  * TODO:
11  *  - TDM mode configuration.
12  */
13 
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/completion.h>
18 #include <linux/delay.h>
19 #include <linux/gpio/driver.h>
20 #include <linux/pm.h>
21 #include <linux/i2c.h>
22 #include <linux/regmap.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/slab.h>
25 #include <linux/irq.h>
26 #include <linux/mutex.h>
27 #include <sound/core.h>
28 #include <sound/jack.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/tlv.h>
32 #include <sound/soc.h>
33 #include <sound/initval.h>
34 #include <sound/wm8903.h>
35 #include <trace/events/asoc.h>
36 
37 #include "wm8903.h"
38 
39 /* Register defaults at reset */
40 static const struct reg_default wm8903_reg_defaults[] = {
41 	{ 4,  0x0018 },     /* R4   - Bias Control 0 */
42 	{ 5,  0x0000 },     /* R5   - VMID Control 0 */
43 	{ 6,  0x0000 },     /* R6   - Mic Bias Control 0 */
44 	{ 8,  0x0001 },     /* R8   - Analogue DAC 0 */
45 	{ 10, 0x0001 },     /* R10  - Analogue ADC 0 */
46 	{ 12, 0x0000 },     /* R12  - Power Management 0 */
47 	{ 13, 0x0000 },     /* R13  - Power Management 1 */
48 	{ 14, 0x0000 },     /* R14  - Power Management 2 */
49 	{ 15, 0x0000 },     /* R15  - Power Management 3 */
50 	{ 16, 0x0000 },     /* R16  - Power Management 4 */
51 	{ 17, 0x0000 },     /* R17  - Power Management 5 */
52 	{ 18, 0x0000 },     /* R18  - Power Management 6 */
53 	{ 20, 0x0400 },     /* R20  - Clock Rates 0 */
54 	{ 21, 0x0D07 },     /* R21  - Clock Rates 1 */
55 	{ 22, 0x0000 },     /* R22  - Clock Rates 2 */
56 	{ 24, 0x0050 },     /* R24  - Audio Interface 0 */
57 	{ 25, 0x0242 },     /* R25  - Audio Interface 1 */
58 	{ 26, 0x0008 },     /* R26  - Audio Interface 2 */
59 	{ 27, 0x0022 },     /* R27  - Audio Interface 3 */
60 	{ 30, 0x00C0 },     /* R30  - DAC Digital Volume Left */
61 	{ 31, 0x00C0 },     /* R31  - DAC Digital Volume Right */
62 	{ 32, 0x0000 },     /* R32  - DAC Digital 0 */
63 	{ 33, 0x0000 },     /* R33  - DAC Digital 1 */
64 	{ 36, 0x00C0 },     /* R36  - ADC Digital Volume Left */
65 	{ 37, 0x00C0 },     /* R37  - ADC Digital Volume Right */
66 	{ 38, 0x0000 },     /* R38  - ADC Digital 0 */
67 	{ 39, 0x0073 },     /* R39  - Digital Microphone 0 */
68 	{ 40, 0x09BF },     /* R40  - DRC 0 */
69 	{ 41, 0x3241 },     /* R41  - DRC 1 */
70 	{ 42, 0x0020 },     /* R42  - DRC 2 */
71 	{ 43, 0x0000 },     /* R43  - DRC 3 */
72 	{ 44, 0x0085 },     /* R44  - Analogue Left Input 0 */
73 	{ 45, 0x0085 },     /* R45  - Analogue Right Input 0 */
74 	{ 46, 0x0044 },     /* R46  - Analogue Left Input 1 */
75 	{ 47, 0x0044 },     /* R47  - Analogue Right Input 1 */
76 	{ 50, 0x0008 },     /* R50  - Analogue Left Mix 0 */
77 	{ 51, 0x0004 },     /* R51  - Analogue Right Mix 0 */
78 	{ 52, 0x0000 },     /* R52  - Analogue Spk Mix Left 0 */
79 	{ 53, 0x0000 },     /* R53  - Analogue Spk Mix Left 1 */
80 	{ 54, 0x0000 },     /* R54  - Analogue Spk Mix Right 0 */
81 	{ 55, 0x0000 },     /* R55  - Analogue Spk Mix Right 1 */
82 	{ 57, 0x002D },     /* R57  - Analogue OUT1 Left */
83 	{ 58, 0x002D },     /* R58  - Analogue OUT1 Right */
84 	{ 59, 0x0039 },     /* R59  - Analogue OUT2 Left */
85 	{ 60, 0x0039 },     /* R60  - Analogue OUT2 Right */
86 	{ 62, 0x0139 },     /* R62  - Analogue OUT3 Left */
87 	{ 63, 0x0139 },     /* R63  - Analogue OUT3 Right */
88 	{ 64, 0x0000 },     /* R65  - Analogue SPK Output Control 0 */
89 	{ 67, 0x0010 },     /* R67  - DC Servo 0 */
90 	{ 69, 0x00A4 },     /* R69  - DC Servo 2 */
91 	{ 90, 0x0000 },     /* R90  - Analogue HP 0 */
92 	{ 94, 0x0000 },     /* R94  - Analogue Lineout 0 */
93 	{ 98, 0x0000 },     /* R98  - Charge Pump 0 */
94 	{ 104, 0x0000 },    /* R104 - Class W 0 */
95 	{ 108, 0x0000 },    /* R108 - Write Sequencer 0 */
96 	{ 109, 0x0000 },    /* R109 - Write Sequencer 1 */
97 	{ 110, 0x0000 },    /* R110 - Write Sequencer 2 */
98 	{ 111, 0x0000 },    /* R111 - Write Sequencer 3 */
99 	{ 112, 0x0000 },    /* R112 - Write Sequencer 4 */
100 	{ 114, 0x0000 },    /* R114 - Control Interface */
101 	{ 116, 0x00A8 },    /* R116 - GPIO Control 1 */
102 	{ 117, 0x00A8 },    /* R117 - GPIO Control 2 */
103 	{ 118, 0x00A8 },    /* R118 - GPIO Control 3 */
104 	{ 119, 0x0220 },    /* R119 - GPIO Control 4 */
105 	{ 120, 0x01A0 },    /* R120 - GPIO Control 5 */
106 	{ 122, 0xFFFF },    /* R122 - Interrupt Status 1 Mask */
107 	{ 123, 0x0000 },    /* R123 - Interrupt Polarity 1 */
108 	{ 126, 0x0000 },    /* R126 - Interrupt Control */
109 	{ 129, 0x0000 },    /* R129 - Control Interface Test 1 */
110 	{ 149, 0x6810 },    /* R149 - Charge Pump Test 1 */
111 	{ 164, 0x0028 },    /* R164 - Clock Rate Test 4 */
112 	{ 172, 0x0000 },    /* R172 - Analogue Output Bias 0 */
113 };
114 
115 #define WM8903_NUM_SUPPLIES 4
116 static const char *wm8903_supply_names[WM8903_NUM_SUPPLIES] = {
117 	"AVDD",
118 	"CPVDD",
119 	"DBVDD",
120 	"DCVDD",
121 };
122 
123 struct wm8903_priv {
124 	struct wm8903_platform_data *pdata;
125 	struct device *dev;
126 	struct regmap *regmap;
127 	struct regulator_bulk_data supplies[WM8903_NUM_SUPPLIES];
128 
129 	int sysclk;
130 	int irq;
131 
132 	struct mutex lock;
133 	int fs;
134 	int deemph;
135 
136 	int dcs_pending;
137 	int dcs_cache[4];
138 
139 	/* Reference count */
140 	int class_w_users;
141 
142 	struct snd_soc_jack *mic_jack;
143 	int mic_det;
144 	int mic_short;
145 	int mic_last_report;
146 	int mic_delay;
147 
148 #ifdef CONFIG_GPIOLIB
149 	struct gpio_chip gpio_chip;
150 #endif
151 };
152 
wm8903_readable_register(struct device * dev,unsigned int reg)153 static bool wm8903_readable_register(struct device *dev, unsigned int reg)
154 {
155 	switch (reg) {
156 	case WM8903_SW_RESET_AND_ID:
157 	case WM8903_REVISION_NUMBER:
158 	case WM8903_BIAS_CONTROL_0:
159 	case WM8903_VMID_CONTROL_0:
160 	case WM8903_MIC_BIAS_CONTROL_0:
161 	case WM8903_ANALOGUE_DAC_0:
162 	case WM8903_ANALOGUE_ADC_0:
163 	case WM8903_POWER_MANAGEMENT_0:
164 	case WM8903_POWER_MANAGEMENT_1:
165 	case WM8903_POWER_MANAGEMENT_2:
166 	case WM8903_POWER_MANAGEMENT_3:
167 	case WM8903_POWER_MANAGEMENT_4:
168 	case WM8903_POWER_MANAGEMENT_5:
169 	case WM8903_POWER_MANAGEMENT_6:
170 	case WM8903_CLOCK_RATES_0:
171 	case WM8903_CLOCK_RATES_1:
172 	case WM8903_CLOCK_RATES_2:
173 	case WM8903_AUDIO_INTERFACE_0:
174 	case WM8903_AUDIO_INTERFACE_1:
175 	case WM8903_AUDIO_INTERFACE_2:
176 	case WM8903_AUDIO_INTERFACE_3:
177 	case WM8903_DAC_DIGITAL_VOLUME_LEFT:
178 	case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
179 	case WM8903_DAC_DIGITAL_0:
180 	case WM8903_DAC_DIGITAL_1:
181 	case WM8903_ADC_DIGITAL_VOLUME_LEFT:
182 	case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
183 	case WM8903_ADC_DIGITAL_0:
184 	case WM8903_DIGITAL_MICROPHONE_0:
185 	case WM8903_DRC_0:
186 	case WM8903_DRC_1:
187 	case WM8903_DRC_2:
188 	case WM8903_DRC_3:
189 	case WM8903_ANALOGUE_LEFT_INPUT_0:
190 	case WM8903_ANALOGUE_RIGHT_INPUT_0:
191 	case WM8903_ANALOGUE_LEFT_INPUT_1:
192 	case WM8903_ANALOGUE_RIGHT_INPUT_1:
193 	case WM8903_ANALOGUE_LEFT_MIX_0:
194 	case WM8903_ANALOGUE_RIGHT_MIX_0:
195 	case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
196 	case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
197 	case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
198 	case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
199 	case WM8903_ANALOGUE_OUT1_LEFT:
200 	case WM8903_ANALOGUE_OUT1_RIGHT:
201 	case WM8903_ANALOGUE_OUT2_LEFT:
202 	case WM8903_ANALOGUE_OUT2_RIGHT:
203 	case WM8903_ANALOGUE_OUT3_LEFT:
204 	case WM8903_ANALOGUE_OUT3_RIGHT:
205 	case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
206 	case WM8903_DC_SERVO_0:
207 	case WM8903_DC_SERVO_2:
208 	case WM8903_DC_SERVO_READBACK_1:
209 	case WM8903_DC_SERVO_READBACK_2:
210 	case WM8903_DC_SERVO_READBACK_3:
211 	case WM8903_DC_SERVO_READBACK_4:
212 	case WM8903_ANALOGUE_HP_0:
213 	case WM8903_ANALOGUE_LINEOUT_0:
214 	case WM8903_CHARGE_PUMP_0:
215 	case WM8903_CLASS_W_0:
216 	case WM8903_WRITE_SEQUENCER_0:
217 	case WM8903_WRITE_SEQUENCER_1:
218 	case WM8903_WRITE_SEQUENCER_2:
219 	case WM8903_WRITE_SEQUENCER_3:
220 	case WM8903_WRITE_SEQUENCER_4:
221 	case WM8903_CONTROL_INTERFACE:
222 	case WM8903_GPIO_CONTROL_1:
223 	case WM8903_GPIO_CONTROL_2:
224 	case WM8903_GPIO_CONTROL_3:
225 	case WM8903_GPIO_CONTROL_4:
226 	case WM8903_GPIO_CONTROL_5:
227 	case WM8903_INTERRUPT_STATUS_1:
228 	case WM8903_INTERRUPT_STATUS_1_MASK:
229 	case WM8903_INTERRUPT_POLARITY_1:
230 	case WM8903_INTERRUPT_CONTROL:
231 	case WM8903_CLOCK_RATE_TEST_4:
232 	case WM8903_ANALOGUE_OUTPUT_BIAS_0:
233 		return true;
234 	default:
235 		return false;
236 	}
237 }
238 
wm8903_volatile_register(struct device * dev,unsigned int reg)239 static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
240 {
241 	switch (reg) {
242 	case WM8903_SW_RESET_AND_ID:
243 	case WM8903_REVISION_NUMBER:
244 	case WM8903_INTERRUPT_STATUS_1:
245 	case WM8903_WRITE_SEQUENCER_4:
246 	case WM8903_DC_SERVO_READBACK_1:
247 	case WM8903_DC_SERVO_READBACK_2:
248 	case WM8903_DC_SERVO_READBACK_3:
249 	case WM8903_DC_SERVO_READBACK_4:
250 		return true;
251 
252 	default:
253 		return false;
254 	}
255 }
256 
wm8903_cp_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)257 static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
258 			   struct snd_kcontrol *kcontrol, int event)
259 {
260 	WARN_ON(event != SND_SOC_DAPM_POST_PMU);
261 	mdelay(4);
262 
263 	return 0;
264 }
265 
wm8903_dcs_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)266 static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
267 			    struct snd_kcontrol *kcontrol, int event)
268 {
269 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
270 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
271 
272 	switch (event) {
273 	case SND_SOC_DAPM_POST_PMU:
274 		wm8903->dcs_pending |= 1 << w->shift;
275 		break;
276 	case SND_SOC_DAPM_PRE_PMD:
277 		snd_soc_component_update_bits(component, WM8903_DC_SERVO_0,
278 				    1 << w->shift, 0);
279 		break;
280 	}
281 
282 	return 0;
283 }
284 
285 #define WM8903_DCS_MODE_WRITE_STOP 0
286 #define WM8903_DCS_MODE_START_STOP 2
287 
wm8903_seq_notifier(struct snd_soc_component * component,enum snd_soc_dapm_type event,int subseq)288 static void wm8903_seq_notifier(struct snd_soc_component *component,
289 				enum snd_soc_dapm_type event, int subseq)
290 {
291 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
292 	int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
293 	int i, val;
294 
295 	/* Complete any pending DC servo starts */
296 	if (wm8903->dcs_pending) {
297 		dev_dbg(component->dev, "Starting DC servo for %x\n",
298 			wm8903->dcs_pending);
299 
300 		/* If we've no cached values then we need to do startup */
301 		for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
302 			if (!(wm8903->dcs_pending & (1 << i)))
303 				continue;
304 
305 			if (wm8903->dcs_cache[i]) {
306 				dev_dbg(component->dev,
307 					"Restore DC servo %d value %x\n",
308 					3 - i, wm8903->dcs_cache[i]);
309 
310 				snd_soc_component_write(component, WM8903_DC_SERVO_4 + i,
311 					      wm8903->dcs_cache[i] & 0xff);
312 			} else {
313 				dev_dbg(component->dev,
314 					"Calibrate DC servo %d\n", 3 - i);
315 				dcs_mode = WM8903_DCS_MODE_START_STOP;
316 			}
317 		}
318 
319 		/* Don't trust the cache for analogue */
320 		if (wm8903->class_w_users)
321 			dcs_mode = WM8903_DCS_MODE_START_STOP;
322 
323 		snd_soc_component_update_bits(component, WM8903_DC_SERVO_2,
324 				    WM8903_DCS_MODE_MASK, dcs_mode);
325 
326 		snd_soc_component_update_bits(component, WM8903_DC_SERVO_0,
327 				    WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
328 
329 		switch (dcs_mode) {
330 		case WM8903_DCS_MODE_WRITE_STOP:
331 			break;
332 
333 		case WM8903_DCS_MODE_START_STOP:
334 			msleep(270);
335 
336 			/* Cache the measured offsets for digital */
337 			if (wm8903->class_w_users)
338 				break;
339 
340 			for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
341 				if (!(wm8903->dcs_pending & (1 << i)))
342 					continue;
343 
344 				val = snd_soc_component_read(component,
345 						   WM8903_DC_SERVO_READBACK_1 + i);
346 				dev_dbg(component->dev, "DC servo %d: %x\n",
347 					3 - i, val);
348 				wm8903->dcs_cache[i] = val;
349 			}
350 			break;
351 
352 		default:
353 			pr_warn("DCS mode %d delay not set\n", dcs_mode);
354 			break;
355 		}
356 
357 		wm8903->dcs_pending = 0;
358 	}
359 }
360 
361 /*
362  * When used with DAC outputs only the WM8903 charge pump supports
363  * operation in class W mode, providing very low power consumption
364  * when used with digital sources.  Enable and disable this mode
365  * automatically depending on the mixer configuration.
366  *
367  * All the relevant controls are simple switches.
368  */
wm8903_class_w_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)369 static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
370 			      struct snd_ctl_elem_value *ucontrol)
371 {
372 	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
373 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
374 	u16 reg;
375 	int ret;
376 
377 	reg = snd_soc_component_read(component, WM8903_CLASS_W_0);
378 
379 	/* Turn it off if we're about to enable bypass */
380 	if (ucontrol->value.integer.value[0]) {
381 		if (wm8903->class_w_users == 0) {
382 			dev_dbg(component->dev, "Disabling Class W\n");
383 			snd_soc_component_write(component, WM8903_CLASS_W_0, reg &
384 				     ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
385 		}
386 		wm8903->class_w_users++;
387 	}
388 
389 	/* Implement the change */
390 	ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
391 
392 	/* If we've just disabled the last bypass path turn Class W on */
393 	if (!ucontrol->value.integer.value[0]) {
394 		if (wm8903->class_w_users == 1) {
395 			dev_dbg(component->dev, "Enabling Class W\n");
396 			snd_soc_component_write(component, WM8903_CLASS_W_0, reg |
397 				     WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
398 		}
399 		wm8903->class_w_users--;
400 	}
401 
402 	dev_dbg(component->dev, "Bypass use count now %d\n",
403 		wm8903->class_w_users);
404 
405 	return ret;
406 }
407 
408 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
409 	SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
410 		snd_soc_dapm_get_volsw, wm8903_class_w_put)
411 
412 
413 static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
414 
wm8903_set_deemph(struct snd_soc_component * component)415 static int wm8903_set_deemph(struct snd_soc_component *component)
416 {
417 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
418 	int val, i, best;
419 
420 	/* If we're using deemphasis select the nearest available sample
421 	 * rate.
422 	 */
423 	if (wm8903->deemph) {
424 		best = 1;
425 		for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
426 			if (abs(wm8903_deemph[i] - wm8903->fs) <
427 			    abs(wm8903_deemph[best] - wm8903->fs))
428 				best = i;
429 		}
430 
431 		val = best << WM8903_DEEMPH_SHIFT;
432 	} else {
433 		best = 0;
434 		val = 0;
435 	}
436 
437 	dev_dbg(component->dev, "Set deemphasis %d (%dHz)\n",
438 		best, wm8903_deemph[best]);
439 
440 	return snd_soc_component_update_bits(component, WM8903_DAC_DIGITAL_1,
441 				   WM8903_DEEMPH_MASK, val);
442 }
443 
wm8903_get_deemph(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)444 static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
445 			     struct snd_ctl_elem_value *ucontrol)
446 {
447 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
448 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
449 
450 	ucontrol->value.integer.value[0] = wm8903->deemph;
451 
452 	return 0;
453 }
454 
wm8903_put_deemph(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)455 static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
456 			     struct snd_ctl_elem_value *ucontrol)
457 {
458 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
459 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
460 	unsigned int deemph = ucontrol->value.integer.value[0];
461 	int ret = 0;
462 
463 	if (deemph > 1)
464 		return -EINVAL;
465 
466 	mutex_lock(&wm8903->lock);
467 	if (wm8903->deemph != deemph) {
468 		wm8903->deemph = deemph;
469 
470 		wm8903_set_deemph(component);
471 
472 		ret = 1;
473 	}
474 	mutex_unlock(&wm8903->lock);
475 
476 	return ret;
477 }
478 
479 /* ALSA can only do steps of .01dB */
480 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
481 
482 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
483 
484 static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
485 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
486 
487 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
488 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
489 static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
490 static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
491 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
492 
493 static const char *hpf_mode_text[] = {
494 	"Hi-fi", "Voice 1", "Voice 2", "Voice 3"
495 };
496 
497 static SOC_ENUM_SINGLE_DECL(hpf_mode,
498 			    WM8903_ADC_DIGITAL_0, 5, hpf_mode_text);
499 
500 static const char *osr_text[] = {
501 	"Low power", "High performance"
502 };
503 
504 static SOC_ENUM_SINGLE_DECL(adc_osr,
505 			    WM8903_ANALOGUE_ADC_0, 0, osr_text);
506 
507 static SOC_ENUM_SINGLE_DECL(dac_osr,
508 			    WM8903_DAC_DIGITAL_1, 0, osr_text);
509 
510 static const char *drc_slope_text[] = {
511 	"1", "1/2", "1/4", "1/8", "1/16", "0"
512 };
513 
514 static SOC_ENUM_SINGLE_DECL(drc_slope_r0,
515 			    WM8903_DRC_2, 3, drc_slope_text);
516 
517 static SOC_ENUM_SINGLE_DECL(drc_slope_r1,
518 			    WM8903_DRC_2, 0, drc_slope_text);
519 
520 static const char *drc_attack_text[] = {
521 	"instantaneous",
522 	"363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
523 	"46.4ms", "92.8ms", "185.6ms"
524 };
525 
526 static SOC_ENUM_SINGLE_DECL(drc_attack,
527 			    WM8903_DRC_1, 12, drc_attack_text);
528 
529 static const char *drc_decay_text[] = {
530 	"186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
531 	"23.87s", "47.56s"
532 };
533 
534 static SOC_ENUM_SINGLE_DECL(drc_decay,
535 			    WM8903_DRC_1, 8, drc_decay_text);
536 
537 static const char *drc_ff_delay_text[] = {
538 	"5 samples", "9 samples"
539 };
540 
541 static SOC_ENUM_SINGLE_DECL(drc_ff_delay,
542 			    WM8903_DRC_0, 5, drc_ff_delay_text);
543 
544 static const char *drc_qr_decay_text[] = {
545 	"0.725ms", "1.45ms", "5.8ms"
546 };
547 
548 static SOC_ENUM_SINGLE_DECL(drc_qr_decay,
549 			    WM8903_DRC_1, 4, drc_qr_decay_text);
550 
551 static const char *drc_smoothing_text[] = {
552 	"Low", "Medium", "High"
553 };
554 
555 static SOC_ENUM_SINGLE_DECL(drc_smoothing,
556 			    WM8903_DRC_0, 11, drc_smoothing_text);
557 
558 static const char *soft_mute_text[] = {
559 	"Fast (fs/2)", "Slow (fs/32)"
560 };
561 
562 static SOC_ENUM_SINGLE_DECL(soft_mute,
563 			    WM8903_DAC_DIGITAL_1, 10, soft_mute_text);
564 
565 static const char *mute_mode_text[] = {
566 	"Hard", "Soft"
567 };
568 
569 static SOC_ENUM_SINGLE_DECL(mute_mode,
570 			    WM8903_DAC_DIGITAL_1, 9, mute_mode_text);
571 
572 static const char *companding_text[] = {
573 	"ulaw", "alaw"
574 };
575 
576 static SOC_ENUM_SINGLE_DECL(dac_companding,
577 			    WM8903_AUDIO_INTERFACE_0, 0, companding_text);
578 
579 static SOC_ENUM_SINGLE_DECL(adc_companding,
580 			    WM8903_AUDIO_INTERFACE_0, 2, companding_text);
581 
582 static const char *input_mode_text[] = {
583 	"Single-Ended", "Differential Line", "Differential Mic"
584 };
585 
586 static SOC_ENUM_SINGLE_DECL(linput_mode_enum,
587 			    WM8903_ANALOGUE_LEFT_INPUT_1, 0, input_mode_text);
588 
589 static SOC_ENUM_SINGLE_DECL(rinput_mode_enum,
590 			    WM8903_ANALOGUE_RIGHT_INPUT_1, 0, input_mode_text);
591 
592 static const char *linput_mux_text[] = {
593 	"IN1L", "IN2L", "IN3L"
594 };
595 
596 static SOC_ENUM_SINGLE_DECL(linput_enum,
597 			    WM8903_ANALOGUE_LEFT_INPUT_1, 2, linput_mux_text);
598 
599 static SOC_ENUM_SINGLE_DECL(linput_inv_enum,
600 			    WM8903_ANALOGUE_LEFT_INPUT_1, 4, linput_mux_text);
601 
602 static const char *rinput_mux_text[] = {
603 	"IN1R", "IN2R", "IN3R"
604 };
605 
606 static SOC_ENUM_SINGLE_DECL(rinput_enum,
607 			    WM8903_ANALOGUE_RIGHT_INPUT_1, 2, rinput_mux_text);
608 
609 static SOC_ENUM_SINGLE_DECL(rinput_inv_enum,
610 			    WM8903_ANALOGUE_RIGHT_INPUT_1, 4, rinput_mux_text);
611 
612 
613 static const char *sidetone_text[] = {
614 	"None", "Left", "Right"
615 };
616 
617 static SOC_ENUM_SINGLE_DECL(lsidetone_enum,
618 			    WM8903_DAC_DIGITAL_0, 2, sidetone_text);
619 
620 static SOC_ENUM_SINGLE_DECL(rsidetone_enum,
621 			    WM8903_DAC_DIGITAL_0, 0, sidetone_text);
622 
623 static const char *adcinput_text[] = {
624 	"ADC", "DMIC"
625 };
626 
627 static SOC_ENUM_SINGLE_DECL(adcinput_enum,
628 			    WM8903_CLOCK_RATE_TEST_4, 9, adcinput_text);
629 
630 static const char *aif_text[] = {
631 	"Left", "Right"
632 };
633 
634 static SOC_ENUM_SINGLE_DECL(lcapture_enum,
635 			    WM8903_AUDIO_INTERFACE_0, 7, aif_text);
636 
637 static SOC_ENUM_SINGLE_DECL(rcapture_enum,
638 			    WM8903_AUDIO_INTERFACE_0, 6, aif_text);
639 
640 static SOC_ENUM_SINGLE_DECL(lplay_enum,
641 			    WM8903_AUDIO_INTERFACE_0, 5, aif_text);
642 
643 static SOC_ENUM_SINGLE_DECL(rplay_enum,
644 			    WM8903_AUDIO_INTERFACE_0, 4, aif_text);
645 
646 static const struct snd_kcontrol_new wm8903_snd_controls[] = {
647 
648 /* Input PGAs - No TLV since the scale depends on PGA mode */
649 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
650 	   7, 1, 1),
651 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
652 	   0, 31, 0),
653 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
654 	   6, 1, 0),
655 
656 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
657 	   7, 1, 1),
658 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
659 	   0, 31, 0),
660 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
661 	   6, 1, 0),
662 
663 /* ADCs */
664 SOC_ENUM("ADC OSR", adc_osr),
665 SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
666 SOC_ENUM("HPF Mode", hpf_mode),
667 SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
668 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
669 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
670 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
671 	       drc_tlv_thresh),
672 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
673 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
674 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
675 SOC_ENUM("DRC Attack Rate", drc_attack),
676 SOC_ENUM("DRC Decay Rate", drc_decay),
677 SOC_ENUM("DRC FF Delay", drc_ff_delay),
678 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
679 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
680 SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
681 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
682 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
683 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
684 SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
685 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
686 
687 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
688 		 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
689 SOC_ENUM("ADC Companding Mode", adc_companding),
690 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
691 
692 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
693 	       12, 0, digital_sidetone_tlv),
694 
695 /* DAC */
696 SOC_ENUM("DAC OSR", dac_osr),
697 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
698 		 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
699 SOC_ENUM("DAC Soft Mute Rate", soft_mute),
700 SOC_ENUM("DAC Mute Mode", mute_mode),
701 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
702 SOC_ENUM("DAC Companding Mode", dac_companding),
703 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
704 SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
705 	       dac_boost_tlv),
706 SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
707 		    wm8903_get_deemph, wm8903_put_deemph),
708 
709 /* Headphones */
710 SOC_DOUBLE_R("Headphone Switch",
711 	     WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
712 	     8, 1, 1),
713 SOC_DOUBLE_R("Headphone ZC Switch",
714 	     WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
715 	     6, 1, 0),
716 SOC_DOUBLE_R_TLV("Headphone Volume",
717 		 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
718 		 0, 63, 0, out_tlv),
719 
720 /* Line out */
721 SOC_DOUBLE_R("Line Out Switch",
722 	     WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
723 	     8, 1, 1),
724 SOC_DOUBLE_R("Line Out ZC Switch",
725 	     WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
726 	     6, 1, 0),
727 SOC_DOUBLE_R_TLV("Line Out Volume",
728 		 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
729 		 0, 63, 0, out_tlv),
730 
731 /* Speaker */
732 SOC_DOUBLE_R("Speaker Switch",
733 	     WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
734 SOC_DOUBLE_R("Speaker ZC Switch",
735 	     WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
736 SOC_DOUBLE_R_TLV("Speaker Volume",
737 		 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
738 		 0, 63, 0, out_tlv),
739 };
740 
741 static const struct snd_kcontrol_new linput_mode_mux =
742 	SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
743 
744 static const struct snd_kcontrol_new rinput_mode_mux =
745 	SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
746 
747 static const struct snd_kcontrol_new linput_mux =
748 	SOC_DAPM_ENUM("Left Input Mux", linput_enum);
749 
750 static const struct snd_kcontrol_new linput_inv_mux =
751 	SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
752 
753 static const struct snd_kcontrol_new rinput_mux =
754 	SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
755 
756 static const struct snd_kcontrol_new rinput_inv_mux =
757 	SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
758 
759 static const struct snd_kcontrol_new lsidetone_mux =
760 	SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
761 
762 static const struct snd_kcontrol_new rsidetone_mux =
763 	SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
764 
765 static const struct snd_kcontrol_new adcinput_mux =
766 	SOC_DAPM_ENUM("ADC Input", adcinput_enum);
767 
768 static const struct snd_kcontrol_new lcapture_mux =
769 	SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
770 
771 static const struct snd_kcontrol_new rcapture_mux =
772 	SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
773 
774 static const struct snd_kcontrol_new lplay_mux =
775 	SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
776 
777 static const struct snd_kcontrol_new rplay_mux =
778 	SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
779 
780 static const struct snd_kcontrol_new left_output_mixer[] = {
781 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
782 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
783 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
784 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
785 };
786 
787 static const struct snd_kcontrol_new right_output_mixer[] = {
788 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
789 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
790 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
791 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
792 };
793 
794 static const struct snd_kcontrol_new left_speaker_mixer[] = {
795 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
796 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
797 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
798 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
799 		0, 1, 0),
800 };
801 
802 static const struct snd_kcontrol_new right_speaker_mixer[] = {
803 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
804 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
805 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
806 		1, 1, 0),
807 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
808 		0, 1, 0),
809 };
810 
811 static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
812 SND_SOC_DAPM_INPUT("IN1L"),
813 SND_SOC_DAPM_INPUT("IN1R"),
814 SND_SOC_DAPM_INPUT("IN2L"),
815 SND_SOC_DAPM_INPUT("IN2R"),
816 SND_SOC_DAPM_INPUT("IN3L"),
817 SND_SOC_DAPM_INPUT("IN3R"),
818 SND_SOC_DAPM_INPUT("DMICDAT"),
819 
820 SND_SOC_DAPM_OUTPUT("HPOUTL"),
821 SND_SOC_DAPM_OUTPUT("HPOUTR"),
822 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
823 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
824 SND_SOC_DAPM_OUTPUT("LOP"),
825 SND_SOC_DAPM_OUTPUT("LON"),
826 SND_SOC_DAPM_OUTPUT("ROP"),
827 SND_SOC_DAPM_OUTPUT("RON"),
828 
829 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
830 
831 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
832 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
833 		 &linput_inv_mux),
834 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
835 
836 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
837 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
838 		 &rinput_inv_mux),
839 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
840 
841 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
842 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
843 
844 SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
845 SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
846 
847 SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
848 SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
849 
850 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
851 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
852 
853 SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
854 SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
855 
856 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
857 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
858 
859 SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
860 SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
861 
862 SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
863 SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
864 
865 SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
866 SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
867 
868 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
869 		   left_output_mixer, ARRAY_SIZE(left_output_mixer)),
870 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
871 		   right_output_mixer, ARRAY_SIZE(right_output_mixer)),
872 
873 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
874 		   left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
875 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
876 		   right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
877 
878 SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
879 		   1, 0, NULL, 0),
880 SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
881 		   0, 0, NULL, 0),
882 
883 SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
884 		   NULL, 0),
885 SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
886 		   NULL, 0),
887 
888 SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
889 SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
890 SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
891 SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
892 SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
893 SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
894 SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
895 SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
896 
897 SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
898 		   NULL, 0),
899 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
900 		   NULL, 0),
901 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
902 		   NULL, 0),
903 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
904 		   NULL, 0),
905 SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
906 		   NULL, 0),
907 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
908 		   NULL, 0),
909 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
910 		   NULL, 0),
911 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
912 		   NULL, 0),
913 
914 SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
915 SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
916 		   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
917 SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
918 		   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
919 SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
920 		   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
921 SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
922 		   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
923 
924 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
925 		 NULL, 0),
926 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
927 		 NULL, 0),
928 
929 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
930 		    wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
931 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
932 SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
933 };
934 
935 static const struct snd_soc_dapm_route wm8903_intercon[] = {
936 
937 	{ "CLK_DSP", NULL, "CLK_SYS" },
938 	{ "MICBIAS", NULL, "CLK_SYS" },
939 	{ "HPL_DCS", NULL, "CLK_SYS" },
940 	{ "HPR_DCS", NULL, "CLK_SYS" },
941 	{ "LINEOUTL_DCS", NULL, "CLK_SYS" },
942 	{ "LINEOUTR_DCS", NULL, "CLK_SYS" },
943 
944 	{ "Left Input Mux", "IN1L", "IN1L" },
945 	{ "Left Input Mux", "IN2L", "IN2L" },
946 	{ "Left Input Mux", "IN3L", "IN3L" },
947 
948 	{ "Left Input Inverting Mux", "IN1L", "IN1L" },
949 	{ "Left Input Inverting Mux", "IN2L", "IN2L" },
950 	{ "Left Input Inverting Mux", "IN3L", "IN3L" },
951 
952 	{ "Right Input Mux", "IN1R", "IN1R" },
953 	{ "Right Input Mux", "IN2R", "IN2R" },
954 	{ "Right Input Mux", "IN3R", "IN3R" },
955 
956 	{ "Right Input Inverting Mux", "IN1R", "IN1R" },
957 	{ "Right Input Inverting Mux", "IN2R", "IN2R" },
958 	{ "Right Input Inverting Mux", "IN3R", "IN3R" },
959 
960 	{ "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
961 	{ "Left Input Mode Mux", "Differential Line",
962 	  "Left Input Mux" },
963 	{ "Left Input Mode Mux", "Differential Line",
964 	  "Left Input Inverting Mux" },
965 	{ "Left Input Mode Mux", "Differential Mic",
966 	  "Left Input Mux" },
967 	{ "Left Input Mode Mux", "Differential Mic",
968 	  "Left Input Inverting Mux" },
969 
970 	{ "Right Input Mode Mux", "Single-Ended",
971 	  "Right Input Inverting Mux" },
972 	{ "Right Input Mode Mux", "Differential Line",
973 	  "Right Input Mux" },
974 	{ "Right Input Mode Mux", "Differential Line",
975 	  "Right Input Inverting Mux" },
976 	{ "Right Input Mode Mux", "Differential Mic",
977 	  "Right Input Mux" },
978 	{ "Right Input Mode Mux", "Differential Mic",
979 	  "Right Input Inverting Mux" },
980 
981 	{ "Left Input PGA", NULL, "Left Input Mode Mux" },
982 	{ "Right Input PGA", NULL, "Right Input Mode Mux" },
983 
984 	{ "Left ADC Input", "ADC", "Left Input PGA" },
985 	{ "Left ADC Input", "DMIC", "DMICDAT" },
986 	{ "Right ADC Input", "ADC", "Right Input PGA" },
987 	{ "Right ADC Input", "DMIC", "DMICDAT" },
988 
989 	{ "Left Capture Mux", "Left", "ADCL" },
990 	{ "Left Capture Mux", "Right", "ADCR" },
991 
992 	{ "Right Capture Mux", "Left", "ADCL" },
993 	{ "Right Capture Mux", "Right", "ADCR" },
994 
995 	{ "AIFTXL", NULL, "Left Capture Mux" },
996 	{ "AIFTXR", NULL, "Right Capture Mux" },
997 
998 	{ "ADCL", NULL, "Left ADC Input" },
999 	{ "ADCL", NULL, "CLK_DSP" },
1000 	{ "ADCR", NULL, "Right ADC Input" },
1001 	{ "ADCR", NULL, "CLK_DSP" },
1002 
1003 	{ "Left Playback Mux", "Left", "AIFRXL" },
1004 	{ "Left Playback Mux", "Right", "AIFRXR" },
1005 
1006 	{ "Right Playback Mux", "Left", "AIFRXL" },
1007 	{ "Right Playback Mux", "Right", "AIFRXR" },
1008 
1009 	{ "DACL Sidetone", "Left", "ADCL" },
1010 	{ "DACL Sidetone", "Right", "ADCR" },
1011 	{ "DACR Sidetone", "Left", "ADCL" },
1012 	{ "DACR Sidetone", "Right", "ADCR" },
1013 
1014 	{ "DACL", NULL, "Left Playback Mux" },
1015 	{ "DACL", NULL, "DACL Sidetone" },
1016 	{ "DACL", NULL, "CLK_DSP" },
1017 
1018 	{ "DACR", NULL, "Right Playback Mux" },
1019 	{ "DACR", NULL, "DACR Sidetone" },
1020 	{ "DACR", NULL, "CLK_DSP" },
1021 
1022 	{ "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1023 	{ "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1024 	{ "Left Output Mixer", "DACL Switch", "DACL" },
1025 	{ "Left Output Mixer", "DACR Switch", "DACR" },
1026 
1027 	{ "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1028 	{ "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1029 	{ "Right Output Mixer", "DACL Switch", "DACL" },
1030 	{ "Right Output Mixer", "DACR Switch", "DACR" },
1031 
1032 	{ "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1033 	{ "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1034 	{ "Left Speaker Mixer", "DACL Switch", "DACL" },
1035 	{ "Left Speaker Mixer", "DACR Switch", "DACR" },
1036 
1037 	{ "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1038 	{ "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1039 	{ "Right Speaker Mixer", "DACL Switch", "DACL" },
1040 	{ "Right Speaker Mixer", "DACR Switch", "DACR" },
1041 
1042 	{ "Left Line Output PGA", NULL, "Left Output Mixer" },
1043 	{ "Right Line Output PGA", NULL, "Right Output Mixer" },
1044 
1045 	{ "Left Headphone Output PGA", NULL, "Left Output Mixer" },
1046 	{ "Right Headphone Output PGA", NULL, "Right Output Mixer" },
1047 
1048 	{ "Left Speaker PGA", NULL, "Left Speaker Mixer" },
1049 	{ "Right Speaker PGA", NULL, "Right Speaker Mixer" },
1050 
1051 	{ "HPL_ENA", NULL, "Left Headphone Output PGA" },
1052 	{ "HPR_ENA", NULL, "Right Headphone Output PGA" },
1053 	{ "HPL_ENA_DLY", NULL, "HPL_ENA" },
1054 	{ "HPR_ENA_DLY", NULL, "HPR_ENA" },
1055 	{ "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
1056 	{ "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
1057 	{ "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
1058 	{ "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
1059 
1060 	{ "HPL_DCS", NULL, "DCS Master" },
1061 	{ "HPR_DCS", NULL, "DCS Master" },
1062 	{ "LINEOUTL_DCS", NULL, "DCS Master" },
1063 	{ "LINEOUTR_DCS", NULL, "DCS Master" },
1064 
1065 	{ "HPL_DCS", NULL, "HPL_ENA_DLY" },
1066 	{ "HPR_DCS", NULL, "HPR_ENA_DLY" },
1067 	{ "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
1068 	{ "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
1069 
1070 	{ "HPL_ENA_OUTP", NULL, "HPL_DCS" },
1071 	{ "HPR_ENA_OUTP", NULL, "HPR_DCS" },
1072 	{ "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
1073 	{ "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
1074 
1075 	{ "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
1076 	{ "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
1077 	{ "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
1078 	{ "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
1079 
1080 	{ "HPOUTL", NULL, "HPL_RMV_SHORT" },
1081 	{ "HPOUTR", NULL, "HPR_RMV_SHORT" },
1082 	{ "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
1083 	{ "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
1084 
1085 	{ "LOP", NULL, "Left Speaker PGA" },
1086 	{ "LON", NULL, "Left Speaker PGA" },
1087 
1088 	{ "ROP", NULL, "Right Speaker PGA" },
1089 	{ "RON", NULL, "Right Speaker PGA" },
1090 
1091 	{ "Charge Pump", NULL, "CLK_DSP" },
1092 
1093 	{ "Left Headphone Output PGA", NULL, "Charge Pump" },
1094 	{ "Right Headphone Output PGA", NULL, "Charge Pump" },
1095 	{ "Left Line Output PGA", NULL, "Charge Pump" },
1096 	{ "Right Line Output PGA", NULL, "Charge Pump" },
1097 };
1098 
wm8903_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)1099 static int wm8903_set_bias_level(struct snd_soc_component *component,
1100 				 enum snd_soc_bias_level level)
1101 {
1102 	switch (level) {
1103 	case SND_SOC_BIAS_ON:
1104 		break;
1105 
1106 	case SND_SOC_BIAS_PREPARE:
1107 		snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1108 				    WM8903_VMID_RES_MASK,
1109 				    WM8903_VMID_RES_50K);
1110 		break;
1111 
1112 	case SND_SOC_BIAS_STANDBY:
1113 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1114 			snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
1115 					    WM8903_POBCTRL | WM8903_ISEL_MASK |
1116 					    WM8903_STARTUP_BIAS_ENA |
1117 					    WM8903_BIAS_ENA,
1118 					    WM8903_POBCTRL |
1119 					    (2 << WM8903_ISEL_SHIFT) |
1120 					    WM8903_STARTUP_BIAS_ENA);
1121 
1122 			snd_soc_component_update_bits(component,
1123 					    WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1124 					    WM8903_SPK_DISCHARGE,
1125 					    WM8903_SPK_DISCHARGE);
1126 
1127 			msleep(33);
1128 
1129 			snd_soc_component_update_bits(component, WM8903_POWER_MANAGEMENT_5,
1130 					    WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1131 					    WM8903_SPKL_ENA | WM8903_SPKR_ENA);
1132 
1133 			snd_soc_component_update_bits(component,
1134 					    WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1135 					    WM8903_SPK_DISCHARGE, 0);
1136 
1137 			snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1138 					    WM8903_VMID_TIE_ENA |
1139 					    WM8903_BUFIO_ENA |
1140 					    WM8903_VMID_IO_ENA |
1141 					    WM8903_VMID_SOFT_MASK |
1142 					    WM8903_VMID_RES_MASK |
1143 					    WM8903_VMID_BUF_ENA,
1144 					    WM8903_VMID_TIE_ENA |
1145 					    WM8903_BUFIO_ENA |
1146 					    WM8903_VMID_IO_ENA |
1147 					    (2 << WM8903_VMID_SOFT_SHIFT) |
1148 					    WM8903_VMID_RES_250K |
1149 					    WM8903_VMID_BUF_ENA);
1150 
1151 			msleep(129);
1152 
1153 			snd_soc_component_update_bits(component, WM8903_POWER_MANAGEMENT_5,
1154 					    WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1155 					    0);
1156 
1157 			snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1158 					    WM8903_VMID_SOFT_MASK, 0);
1159 
1160 			snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1161 					    WM8903_VMID_RES_MASK,
1162 					    WM8903_VMID_RES_50K);
1163 
1164 			snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
1165 					    WM8903_BIAS_ENA | WM8903_POBCTRL,
1166 					    WM8903_BIAS_ENA);
1167 
1168 			/* By default no bypass paths are enabled so
1169 			 * enable Class W support.
1170 			 */
1171 			dev_dbg(component->dev, "Enabling Class W\n");
1172 			snd_soc_component_update_bits(component, WM8903_CLASS_W_0,
1173 					    WM8903_CP_DYN_FREQ |
1174 					    WM8903_CP_DYN_V,
1175 					    WM8903_CP_DYN_FREQ |
1176 					    WM8903_CP_DYN_V);
1177 		}
1178 
1179 		snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1180 				    WM8903_VMID_RES_MASK,
1181 				    WM8903_VMID_RES_250K);
1182 		break;
1183 
1184 	case SND_SOC_BIAS_OFF:
1185 		snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
1186 				    WM8903_BIAS_ENA, 0);
1187 
1188 		snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1189 				    WM8903_VMID_SOFT_MASK,
1190 				    2 << WM8903_VMID_SOFT_SHIFT);
1191 
1192 		snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1193 				    WM8903_VMID_BUF_ENA, 0);
1194 
1195 		msleep(290);
1196 
1197 		snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
1198 				    WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
1199 				    WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
1200 				    WM8903_VMID_SOFT_MASK |
1201 				    WM8903_VMID_BUF_ENA, 0);
1202 
1203 		snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
1204 				    WM8903_STARTUP_BIAS_ENA, 0);
1205 		break;
1206 	}
1207 
1208 	return 0;
1209 }
1210 
wm8903_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)1211 static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1212 				 int clk_id, unsigned int freq, int dir)
1213 {
1214 	struct snd_soc_component *component = codec_dai->component;
1215 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
1216 
1217 	wm8903->sysclk = freq;
1218 
1219 	return 0;
1220 }
1221 
wm8903_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)1222 static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1223 			      unsigned int fmt)
1224 {
1225 	struct snd_soc_component *component = codec_dai->component;
1226 	u16 aif1 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_1);
1227 
1228 	aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1229 		  WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1230 
1231 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1232 	case SND_SOC_DAIFMT_CBS_CFS:
1233 		break;
1234 	case SND_SOC_DAIFMT_CBS_CFM:
1235 		aif1 |= WM8903_LRCLK_DIR;
1236 		break;
1237 	case SND_SOC_DAIFMT_CBM_CFM:
1238 		aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1239 		break;
1240 	case SND_SOC_DAIFMT_CBM_CFS:
1241 		aif1 |= WM8903_BCLK_DIR;
1242 		break;
1243 	default:
1244 		return -EINVAL;
1245 	}
1246 
1247 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1248 	case SND_SOC_DAIFMT_DSP_A:
1249 		aif1 |= 0x3;
1250 		break;
1251 	case SND_SOC_DAIFMT_DSP_B:
1252 		aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1253 		break;
1254 	case SND_SOC_DAIFMT_I2S:
1255 		aif1 |= 0x2;
1256 		break;
1257 	case SND_SOC_DAIFMT_RIGHT_J:
1258 		aif1 |= 0x1;
1259 		break;
1260 	case SND_SOC_DAIFMT_LEFT_J:
1261 		break;
1262 	default:
1263 		return -EINVAL;
1264 	}
1265 
1266 	/* Clock inversion */
1267 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1268 	case SND_SOC_DAIFMT_DSP_A:
1269 	case SND_SOC_DAIFMT_DSP_B:
1270 		/* frame inversion not valid for DSP modes */
1271 		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1272 		case SND_SOC_DAIFMT_NB_NF:
1273 			break;
1274 		case SND_SOC_DAIFMT_IB_NF:
1275 			aif1 |= WM8903_AIF_BCLK_INV;
1276 			break;
1277 		default:
1278 			return -EINVAL;
1279 		}
1280 		break;
1281 	case SND_SOC_DAIFMT_I2S:
1282 	case SND_SOC_DAIFMT_RIGHT_J:
1283 	case SND_SOC_DAIFMT_LEFT_J:
1284 		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1285 		case SND_SOC_DAIFMT_NB_NF:
1286 			break;
1287 		case SND_SOC_DAIFMT_IB_IF:
1288 			aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1289 			break;
1290 		case SND_SOC_DAIFMT_IB_NF:
1291 			aif1 |= WM8903_AIF_BCLK_INV;
1292 			break;
1293 		case SND_SOC_DAIFMT_NB_IF:
1294 			aif1 |= WM8903_AIF_LRCLK_INV;
1295 			break;
1296 		default:
1297 			return -EINVAL;
1298 		}
1299 		break;
1300 	default:
1301 		return -EINVAL;
1302 	}
1303 
1304 	snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_1, aif1);
1305 
1306 	return 0;
1307 }
1308 
wm8903_mute(struct snd_soc_dai * codec_dai,int mute,int direction)1309 static int wm8903_mute(struct snd_soc_dai *codec_dai, int mute, int direction)
1310 {
1311 	struct snd_soc_component *component = codec_dai->component;
1312 	u16 reg;
1313 
1314 	reg = snd_soc_component_read(component, WM8903_DAC_DIGITAL_1);
1315 
1316 	if (mute)
1317 		reg |= WM8903_DAC_MUTE;
1318 	else
1319 		reg &= ~WM8903_DAC_MUTE;
1320 
1321 	snd_soc_component_write(component, WM8903_DAC_DIGITAL_1, reg);
1322 
1323 	return 0;
1324 }
1325 
1326 /* Lookup table for CLK_SYS/fs ratio.  256fs or more is recommended
1327  * for optimal performance so we list the lower rates first and match
1328  * on the last match we find. */
1329 static struct {
1330 	int div;
1331 	int rate;
1332 	int mode;
1333 	int mclk_div;
1334 } clk_sys_ratios[] = {
1335 	{   64, 0x0, 0x0, 1 },
1336 	{   68, 0x0, 0x1, 1 },
1337 	{  125, 0x0, 0x2, 1 },
1338 	{  128, 0x1, 0x0, 1 },
1339 	{  136, 0x1, 0x1, 1 },
1340 	{  192, 0x2, 0x0, 1 },
1341 	{  204, 0x2, 0x1, 1 },
1342 
1343 	{   64, 0x0, 0x0, 2 },
1344 	{   68, 0x0, 0x1, 2 },
1345 	{  125, 0x0, 0x2, 2 },
1346 	{  128, 0x1, 0x0, 2 },
1347 	{  136, 0x1, 0x1, 2 },
1348 	{  192, 0x2, 0x0, 2 },
1349 	{  204, 0x2, 0x1, 2 },
1350 
1351 	{  250, 0x2, 0x2, 1 },
1352 	{  256, 0x3, 0x0, 1 },
1353 	{  272, 0x3, 0x1, 1 },
1354 	{  384, 0x4, 0x0, 1 },
1355 	{  408, 0x4, 0x1, 1 },
1356 	{  375, 0x4, 0x2, 1 },
1357 	{  512, 0x5, 0x0, 1 },
1358 	{  544, 0x5, 0x1, 1 },
1359 	{  500, 0x5, 0x2, 1 },
1360 	{  768, 0x6, 0x0, 1 },
1361 	{  816, 0x6, 0x1, 1 },
1362 	{  750, 0x6, 0x2, 1 },
1363 	{ 1024, 0x7, 0x0, 1 },
1364 	{ 1088, 0x7, 0x1, 1 },
1365 	{ 1000, 0x7, 0x2, 1 },
1366 	{ 1408, 0x8, 0x0, 1 },
1367 	{ 1496, 0x8, 0x1, 1 },
1368 	{ 1536, 0x9, 0x0, 1 },
1369 	{ 1632, 0x9, 0x1, 1 },
1370 	{ 1500, 0x9, 0x2, 1 },
1371 
1372 	{  250, 0x2, 0x2, 2 },
1373 	{  256, 0x3, 0x0, 2 },
1374 	{  272, 0x3, 0x1, 2 },
1375 	{  384, 0x4, 0x0, 2 },
1376 	{  408, 0x4, 0x1, 2 },
1377 	{  375, 0x4, 0x2, 2 },
1378 	{  512, 0x5, 0x0, 2 },
1379 	{  544, 0x5, 0x1, 2 },
1380 	{  500, 0x5, 0x2, 2 },
1381 	{  768, 0x6, 0x0, 2 },
1382 	{  816, 0x6, 0x1, 2 },
1383 	{  750, 0x6, 0x2, 2 },
1384 	{ 1024, 0x7, 0x0, 2 },
1385 	{ 1088, 0x7, 0x1, 2 },
1386 	{ 1000, 0x7, 0x2, 2 },
1387 	{ 1408, 0x8, 0x0, 2 },
1388 	{ 1496, 0x8, 0x1, 2 },
1389 	{ 1536, 0x9, 0x0, 2 },
1390 	{ 1632, 0x9, 0x1, 2 },
1391 	{ 1500, 0x9, 0x2, 2 },
1392 };
1393 
1394 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1395 static struct {
1396 	int ratio;
1397 	int div;
1398 } bclk_divs[] = {
1399 	{  10,  0 },
1400 	{  20,  2 },
1401 	{  30,  3 },
1402 	{  40,  4 },
1403 	{  50,  5 },
1404 	{  60,  7 },
1405 	{  80,  8 },
1406 	{ 100,  9 },
1407 	{ 120, 11 },
1408 	{ 160, 12 },
1409 	{ 200, 13 },
1410 	{ 220, 14 },
1411 	{ 240, 15 },
1412 	{ 300, 17 },
1413 	{ 320, 18 },
1414 	{ 440, 19 },
1415 	{ 480, 20 },
1416 };
1417 
1418 /* Sample rates for DSP */
1419 static struct {
1420 	int rate;
1421 	int value;
1422 } sample_rates[] = {
1423 	{  8000,  0 },
1424 	{ 11025,  1 },
1425 	{ 12000,  2 },
1426 	{ 16000,  3 },
1427 	{ 22050,  4 },
1428 	{ 24000,  5 },
1429 	{ 32000,  6 },
1430 	{ 44100,  7 },
1431 	{ 48000,  8 },
1432 	{ 88200,  9 },
1433 	{ 96000, 10 },
1434 	{ 0,      0 },
1435 };
1436 
wm8903_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)1437 static int wm8903_hw_params(struct snd_pcm_substream *substream,
1438 			    struct snd_pcm_hw_params *params,
1439 			    struct snd_soc_dai *dai)
1440 {
1441 	struct snd_soc_component *component = dai->component;
1442 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
1443 	int fs = params_rate(params);
1444 	int bclk;
1445 	int bclk_div;
1446 	int i;
1447 	int dsp_config;
1448 	int clk_config;
1449 	int best_val;
1450 	int cur_val;
1451 	int clk_sys;
1452 
1453 	u16 aif1 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_1);
1454 	u16 aif2 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_2);
1455 	u16 aif3 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_3);
1456 	u16 clock0 = snd_soc_component_read(component, WM8903_CLOCK_RATES_0);
1457 	u16 clock1 = snd_soc_component_read(component, WM8903_CLOCK_RATES_1);
1458 	u16 dac_digital1 = snd_soc_component_read(component, WM8903_DAC_DIGITAL_1);
1459 
1460 	/* Enable sloping stopband filter for low sample rates */
1461 	if (fs <= 24000)
1462 		dac_digital1 |= WM8903_DAC_SB_FILT;
1463 	else
1464 		dac_digital1 &= ~WM8903_DAC_SB_FILT;
1465 
1466 	/* Configure sample rate logic for DSP - choose nearest rate */
1467 	dsp_config = 0;
1468 	best_val = abs(sample_rates[dsp_config].rate - fs);
1469 	for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1470 		cur_val = abs(sample_rates[i].rate - fs);
1471 		if (cur_val <= best_val) {
1472 			dsp_config = i;
1473 			best_val = cur_val;
1474 		}
1475 	}
1476 
1477 	dev_dbg(component->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1478 	clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1479 	clock1 |= sample_rates[dsp_config].value;
1480 
1481 	aif1 &= ~WM8903_AIF_WL_MASK;
1482 	bclk = 2 * fs;
1483 	switch (params_width(params)) {
1484 	case 16:
1485 		bclk *= 16;
1486 		break;
1487 	case 20:
1488 		bclk *= 20;
1489 		aif1 |= 0x4;
1490 		break;
1491 	case 24:
1492 		bclk *= 24;
1493 		aif1 |= 0x8;
1494 		break;
1495 	case 32:
1496 		bclk *= 32;
1497 		aif1 |= 0xc;
1498 		break;
1499 	default:
1500 		return -EINVAL;
1501 	}
1502 
1503 	dev_dbg(component->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1504 		wm8903->sysclk, fs);
1505 
1506 	/* We may not have an MCLK which allows us to generate exactly
1507 	 * the clock we want, particularly with USB derived inputs, so
1508 	 * approximate.
1509 	 */
1510 	clk_config = 0;
1511 	best_val = abs((wm8903->sysclk /
1512 			(clk_sys_ratios[0].mclk_div *
1513 			 clk_sys_ratios[0].div)) - fs);
1514 	for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1515 		cur_val = abs((wm8903->sysclk /
1516 			       (clk_sys_ratios[i].mclk_div *
1517 				clk_sys_ratios[i].div)) - fs);
1518 
1519 		if (cur_val <= best_val) {
1520 			clk_config = i;
1521 			best_val = cur_val;
1522 		}
1523 	}
1524 
1525 	if (clk_sys_ratios[clk_config].mclk_div == 2) {
1526 		clock0 |= WM8903_MCLKDIV2;
1527 		clk_sys = wm8903->sysclk / 2;
1528 	} else {
1529 		clock0 &= ~WM8903_MCLKDIV2;
1530 		clk_sys = wm8903->sysclk;
1531 	}
1532 
1533 	clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1534 		    WM8903_CLK_SYS_MODE_MASK);
1535 	clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1536 	clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1537 
1538 	dev_dbg(component->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1539 		clk_sys_ratios[clk_config].rate,
1540 		clk_sys_ratios[clk_config].mode,
1541 		clk_sys_ratios[clk_config].div);
1542 
1543 	dev_dbg(component->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1544 
1545 	/* We may not get quite the right frequency if using
1546 	 * approximate clocks so look for the closest match that is
1547 	 * higher than the target (we need to ensure that there enough
1548 	 * BCLKs to clock out the samples).
1549 	 */
1550 	bclk_div = 0;
1551 	i = 1;
1552 	while (i < ARRAY_SIZE(bclk_divs)) {
1553 		cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1554 		if (cur_val < 0) /* BCLK table is sorted */
1555 			break;
1556 		bclk_div = i;
1557 		i++;
1558 	}
1559 
1560 	aif2 &= ~WM8903_BCLK_DIV_MASK;
1561 	aif3 &= ~WM8903_LRCLK_RATE_MASK;
1562 
1563 	dev_dbg(component->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1564 		bclk_divs[bclk_div].ratio / 10, bclk,
1565 		(clk_sys * 10) / bclk_divs[bclk_div].ratio);
1566 
1567 	aif2 |= bclk_divs[bclk_div].div;
1568 	aif3 |= bclk / fs;
1569 
1570 	wm8903->fs = params_rate(params);
1571 	wm8903_set_deemph(component);
1572 
1573 	snd_soc_component_write(component, WM8903_CLOCK_RATES_0, clock0);
1574 	snd_soc_component_write(component, WM8903_CLOCK_RATES_1, clock1);
1575 	snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_1, aif1);
1576 	snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_2, aif2);
1577 	snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_3, aif3);
1578 	snd_soc_component_write(component, WM8903_DAC_DIGITAL_1, dac_digital1);
1579 
1580 	return 0;
1581 }
1582 
1583 /**
1584  * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
1585  *
1586  * @component:  WM8903 component
1587  * @jack:   jack to report detection events on
1588  * @det:    value to report for presence detection
1589  * @shrt:   value to report for short detection
1590  *
1591  * Enable microphone detection via IRQ on the WM8903.  If GPIOs are
1592  * being used to bring out signals to the processor then only platform
1593  * data configuration is needed for WM8903 and processor GPIOs should
1594  * be configured using snd_soc_jack_add_gpios() instead.
1595  *
1596  * The current threasholds for detection should be configured using
1597  * micdet_cfg in the platform data.  Using this function will force on
1598  * the microphone bias for the device.
1599  */
wm8903_mic_detect(struct snd_soc_component * component,struct snd_soc_jack * jack,int det,int shrt)1600 int wm8903_mic_detect(struct snd_soc_component *component, struct snd_soc_jack *jack,
1601 		      int det, int shrt)
1602 {
1603 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
1604 	int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1605 
1606 	dev_dbg(component->dev, "Enabling microphone detection: %x %x\n",
1607 		det, shrt);
1608 
1609 	/* Store the configuration */
1610 	wm8903->mic_jack = jack;
1611 	wm8903->mic_det = det;
1612 	wm8903->mic_short = shrt;
1613 
1614 	/* Enable interrupts we've got a report configured for */
1615 	if (det)
1616 		irq_mask &= ~WM8903_MICDET_EINT;
1617 	if (shrt)
1618 		irq_mask &= ~WM8903_MICSHRT_EINT;
1619 
1620 	snd_soc_component_update_bits(component, WM8903_INTERRUPT_STATUS_1_MASK,
1621 			    WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1622 			    irq_mask);
1623 
1624 	if (det || shrt) {
1625 		/* Enable mic detection, this may not have been set through
1626 		 * platform data (eg, if the defaults are OK). */
1627 		snd_soc_component_update_bits(component, WM8903_WRITE_SEQUENCER_0,
1628 				    WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1629 		snd_soc_component_update_bits(component, WM8903_MIC_BIAS_CONTROL_0,
1630 				    WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1631 	} else {
1632 		snd_soc_component_update_bits(component, WM8903_MIC_BIAS_CONTROL_0,
1633 				    WM8903_MICDET_ENA, 0);
1634 	}
1635 
1636 	return 0;
1637 }
1638 EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1639 
wm8903_irq(int irq,void * data)1640 static irqreturn_t wm8903_irq(int irq, void *data)
1641 {
1642 	struct wm8903_priv *wm8903 = data;
1643 	int mic_report, ret;
1644 	unsigned int int_val, mask, int_pol;
1645 
1646 	ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
1647 			  &mask);
1648 	if (ret != 0) {
1649 		dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
1650 		return IRQ_NONE;
1651 	}
1652 
1653 	ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
1654 	if (ret != 0) {
1655 		dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
1656 		return IRQ_NONE;
1657 	}
1658 
1659 	int_val &= ~mask;
1660 
1661 	if (int_val & WM8903_WSEQ_BUSY_EINT) {
1662 		dev_warn(wm8903->dev, "Write sequencer done\n");
1663 	}
1664 
1665 	/*
1666 	 * The rest is microphone jack detection.  We need to manually
1667 	 * invert the polarity of the interrupt after each event - to
1668 	 * simplify the code keep track of the last state we reported
1669 	 * and just invert the relevant bits in both the report and
1670 	 * the polarity register.
1671 	 */
1672 	mic_report = wm8903->mic_last_report;
1673 	ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1674 			  &int_pol);
1675 	if (ret != 0) {
1676 		dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
1677 			ret);
1678 		return IRQ_HANDLED;
1679 	}
1680 
1681 #ifndef CONFIG_SND_SOC_WM8903_MODULE
1682 	if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
1683 		trace_snd_soc_jack_irq(dev_name(wm8903->dev));
1684 #endif
1685 
1686 	if (int_val & WM8903_MICSHRT_EINT) {
1687 		dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
1688 
1689 		mic_report ^= wm8903->mic_short;
1690 		int_pol ^= WM8903_MICSHRT_INV;
1691 	}
1692 
1693 	if (int_val & WM8903_MICDET_EINT) {
1694 		dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
1695 
1696 		mic_report ^= wm8903->mic_det;
1697 		int_pol ^= WM8903_MICDET_INV;
1698 
1699 		msleep(wm8903->mic_delay);
1700 	}
1701 
1702 	regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1703 			   WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1704 
1705 	snd_soc_jack_report(wm8903->mic_jack, mic_report,
1706 			    wm8903->mic_short | wm8903->mic_det);
1707 
1708 	wm8903->mic_last_report = mic_report;
1709 
1710 	return IRQ_HANDLED;
1711 }
1712 
1713 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1714 			       SNDRV_PCM_RATE_11025 |	\
1715 			       SNDRV_PCM_RATE_16000 |	\
1716 			       SNDRV_PCM_RATE_22050 |	\
1717 			       SNDRV_PCM_RATE_32000 |	\
1718 			       SNDRV_PCM_RATE_44100 |	\
1719 			       SNDRV_PCM_RATE_48000 |	\
1720 			       SNDRV_PCM_RATE_88200 |	\
1721 			       SNDRV_PCM_RATE_96000)
1722 
1723 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1724 			      SNDRV_PCM_RATE_11025 |	\
1725 			      SNDRV_PCM_RATE_16000 |	\
1726 			      SNDRV_PCM_RATE_22050 |	\
1727 			      SNDRV_PCM_RATE_32000 |	\
1728 			      SNDRV_PCM_RATE_44100 |	\
1729 			      SNDRV_PCM_RATE_48000)
1730 
1731 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1732 			SNDRV_PCM_FMTBIT_S20_3LE |\
1733 			SNDRV_PCM_FMTBIT_S24_LE)
1734 
1735 static const struct snd_soc_dai_ops wm8903_dai_ops = {
1736 	.hw_params	= wm8903_hw_params,
1737 	.mute_stream	= wm8903_mute,
1738 	.set_fmt	= wm8903_set_dai_fmt,
1739 	.set_sysclk	= wm8903_set_dai_sysclk,
1740 	.no_capture_mute = 1,
1741 };
1742 
1743 static struct snd_soc_dai_driver wm8903_dai = {
1744 	.name = "wm8903-hifi",
1745 	.playback = {
1746 		.stream_name = "Playback",
1747 		.channels_min = 2,
1748 		.channels_max = 2,
1749 		.rates = WM8903_PLAYBACK_RATES,
1750 		.formats = WM8903_FORMATS,
1751 	},
1752 	.capture = {
1753 		 .stream_name = "Capture",
1754 		 .channels_min = 2,
1755 		 .channels_max = 2,
1756 		 .rates = WM8903_CAPTURE_RATES,
1757 		 .formats = WM8903_FORMATS,
1758 	 },
1759 	.ops = &wm8903_dai_ops,
1760 	.symmetric_rate = 1,
1761 };
1762 
wm8903_resume(struct snd_soc_component * component)1763 static int wm8903_resume(struct snd_soc_component *component)
1764 {
1765 	struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
1766 
1767 	regcache_sync(wm8903->regmap);
1768 
1769 	return 0;
1770 }
1771 
1772 #ifdef CONFIG_GPIOLIB
wm8903_gpio_request(struct gpio_chip * chip,unsigned offset)1773 static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
1774 {
1775 	if (offset >= WM8903_NUM_GPIO)
1776 		return -EINVAL;
1777 
1778 	return 0;
1779 }
1780 
wm8903_gpio_direction_in(struct gpio_chip * chip,unsigned offset)1781 static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
1782 {
1783 	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1784 	unsigned int mask, val;
1785 	int ret;
1786 
1787 	mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
1788 	val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
1789 		WM8903_GP1_DIR;
1790 
1791 	ret = regmap_update_bits(wm8903->regmap,
1792 				 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1793 	if (ret < 0)
1794 		return ret;
1795 
1796 	return 0;
1797 }
1798 
wm8903_gpio_get(struct gpio_chip * chip,unsigned offset)1799 static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
1800 {
1801 	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1802 	unsigned int reg;
1803 
1804 	regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
1805 
1806 	return !!((reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT);
1807 }
1808 
wm8903_gpio_direction_out(struct gpio_chip * chip,unsigned offset,int value)1809 static int wm8903_gpio_direction_out(struct gpio_chip *chip,
1810 				     unsigned offset, int value)
1811 {
1812 	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1813 	unsigned int mask, val;
1814 	int ret;
1815 
1816 	mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
1817 	val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
1818 		(value << WM8903_GP2_LVL_SHIFT);
1819 
1820 	ret = regmap_update_bits(wm8903->regmap,
1821 				 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1822 	if (ret < 0)
1823 		return ret;
1824 
1825 	return 0;
1826 }
1827 
wm8903_gpio_set(struct gpio_chip * chip,unsigned offset,int value)1828 static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
1829 {
1830 	struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1831 
1832 	regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
1833 			   WM8903_GP1_LVL_MASK,
1834 			   !!value << WM8903_GP1_LVL_SHIFT);
1835 }
1836 
1837 static const struct gpio_chip wm8903_template_chip = {
1838 	.label			= "wm8903",
1839 	.owner			= THIS_MODULE,
1840 	.request		= wm8903_gpio_request,
1841 	.direction_input	= wm8903_gpio_direction_in,
1842 	.get			= wm8903_gpio_get,
1843 	.direction_output	= wm8903_gpio_direction_out,
1844 	.set			= wm8903_gpio_set,
1845 	.can_sleep		= 1,
1846 };
1847 
wm8903_init_gpio(struct wm8903_priv * wm8903)1848 static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1849 {
1850 	struct wm8903_platform_data *pdata = wm8903->pdata;
1851 	int ret;
1852 
1853 	wm8903->gpio_chip = wm8903_template_chip;
1854 	wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
1855 	wm8903->gpio_chip.parent = wm8903->dev;
1856 
1857 	if (pdata->gpio_base)
1858 		wm8903->gpio_chip.base = pdata->gpio_base;
1859 	else
1860 		wm8903->gpio_chip.base = -1;
1861 
1862 	ret = gpiochip_add_data(&wm8903->gpio_chip, wm8903);
1863 	if (ret != 0)
1864 		dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
1865 }
1866 
wm8903_free_gpio(struct wm8903_priv * wm8903)1867 static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1868 {
1869 	gpiochip_remove(&wm8903->gpio_chip);
1870 }
1871 #else
wm8903_init_gpio(struct wm8903_priv * wm8903)1872 static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1873 {
1874 }
1875 
wm8903_free_gpio(struct wm8903_priv * wm8903)1876 static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1877 {
1878 }
1879 #endif
1880 
1881 static const struct snd_soc_component_driver soc_component_dev_wm8903 = {
1882 	.resume			= wm8903_resume,
1883 	.set_bias_level		= wm8903_set_bias_level,
1884 	.seq_notifier		= wm8903_seq_notifier,
1885 	.controls		= wm8903_snd_controls,
1886 	.num_controls		= ARRAY_SIZE(wm8903_snd_controls),
1887 	.dapm_widgets		= wm8903_dapm_widgets,
1888 	.num_dapm_widgets	= ARRAY_SIZE(wm8903_dapm_widgets),
1889 	.dapm_routes		= wm8903_intercon,
1890 	.num_dapm_routes	= ARRAY_SIZE(wm8903_intercon),
1891 	.suspend_bias_off	= 1,
1892 	.idle_bias_on		= 1,
1893 	.use_pmdown_time	= 1,
1894 	.endianness		= 1,
1895 };
1896 
1897 static const struct regmap_config wm8903_regmap = {
1898 	.reg_bits = 8,
1899 	.val_bits = 16,
1900 
1901 	.max_register = WM8903_MAX_REGISTER,
1902 	.volatile_reg = wm8903_volatile_register,
1903 	.readable_reg = wm8903_readable_register,
1904 
1905 	.cache_type = REGCACHE_MAPLE,
1906 	.reg_defaults = wm8903_reg_defaults,
1907 	.num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
1908 };
1909 
wm8903_set_pdata_irq_trigger(struct i2c_client * i2c,struct wm8903_platform_data * pdata)1910 static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
1911 					struct wm8903_platform_data *pdata)
1912 {
1913 	struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
1914 	if (!irq_data) {
1915 		dev_err(&i2c->dev, "Invalid IRQ: %d\n",
1916 			i2c->irq);
1917 		return -EINVAL;
1918 	}
1919 
1920 	switch (irqd_get_trigger_type(irq_data)) {
1921 	case IRQ_TYPE_NONE:
1922 	default:
1923 		/*
1924 		* We assume the controller imposes no restrictions,
1925 		* so we are able to select active-high
1926 		*/
1927 		fallthrough;
1928 	case IRQ_TYPE_LEVEL_HIGH:
1929 		pdata->irq_active_low = false;
1930 		break;
1931 	case IRQ_TYPE_LEVEL_LOW:
1932 		pdata->irq_active_low = true;
1933 		break;
1934 	}
1935 
1936 	return 0;
1937 }
1938 
wm8903_set_pdata_from_of(struct i2c_client * i2c,struct wm8903_platform_data * pdata)1939 static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
1940 				    struct wm8903_platform_data *pdata)
1941 {
1942 	const struct device_node *np = i2c->dev.of_node;
1943 	u32 val32;
1944 	int i;
1945 
1946 	if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
1947 		pdata->micdet_cfg = val32;
1948 
1949 	if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
1950 		pdata->micdet_delay = val32;
1951 
1952 	if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
1953 				       ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
1954 		/*
1955 		 * In device tree: 0 means "write 0",
1956 		 * 0xffffffff means "don't touch".
1957 		 *
1958 		 * In platform data: 0 means "don't touch",
1959 		 * 0x8000 means "write 0".
1960 		 *
1961 		 * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
1962 		 *
1963 		 *  Convert from DT to pdata representation here,
1964 		 * so no other code needs to change.
1965 		 */
1966 		for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
1967 			if (pdata->gpio_cfg[i] == 0) {
1968 				pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
1969 			} else if (pdata->gpio_cfg[i] == 0xffffffff) {
1970 				pdata->gpio_cfg[i] = 0;
1971 			} else if (pdata->gpio_cfg[i] > 0x7fff) {
1972 				dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
1973 					i, pdata->gpio_cfg[i]);
1974 				return -EINVAL;
1975 			}
1976 		}
1977 	}
1978 
1979 	return 0;
1980 }
1981 
wm8903_i2c_probe(struct i2c_client * i2c)1982 static int wm8903_i2c_probe(struct i2c_client *i2c)
1983 {
1984 	struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
1985 	struct wm8903_priv *wm8903;
1986 	int trigger;
1987 	bool mic_gpio = false;
1988 	unsigned int val, irq_pol;
1989 	int ret, i;
1990 
1991 	wm8903 = devm_kzalloc(&i2c->dev, sizeof(*wm8903), GFP_KERNEL);
1992 	if (wm8903 == NULL)
1993 		return -ENOMEM;
1994 
1995 	mutex_init(&wm8903->lock);
1996 	wm8903->dev = &i2c->dev;
1997 
1998 	wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
1999 	if (IS_ERR(wm8903->regmap)) {
2000 		ret = PTR_ERR(wm8903->regmap);
2001 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
2002 			ret);
2003 		return ret;
2004 	}
2005 
2006 	i2c_set_clientdata(i2c, wm8903);
2007 
2008 	/* If no platform data was supplied, create storage for defaults */
2009 	if (pdata) {
2010 		wm8903->pdata = pdata;
2011 	} else {
2012 		wm8903->pdata = devm_kzalloc(&i2c->dev, sizeof(*wm8903->pdata),
2013 					     GFP_KERNEL);
2014 		if (!wm8903->pdata)
2015 			return -ENOMEM;
2016 
2017 		if (i2c->irq) {
2018 			ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
2019 			if (ret != 0)
2020 				return ret;
2021 		}
2022 
2023 		if (i2c->dev.of_node) {
2024 			ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
2025 			if (ret != 0)
2026 				return ret;
2027 		}
2028 	}
2029 
2030 	pdata = wm8903->pdata;
2031 
2032 	for (i = 0; i < ARRAY_SIZE(wm8903->supplies); i++)
2033 		wm8903->supplies[i].supply = wm8903_supply_names[i];
2034 
2035 	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8903->supplies),
2036 				      wm8903->supplies);
2037 	if (ret != 0) {
2038 		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
2039 		return ret;
2040 	}
2041 
2042 	ret = regulator_bulk_enable(ARRAY_SIZE(wm8903->supplies),
2043 				    wm8903->supplies);
2044 	if (ret != 0) {
2045 		dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
2046 		return ret;
2047 	}
2048 
2049 	ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
2050 	if (ret != 0) {
2051 		dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
2052 		goto err;
2053 	}
2054 	if (val != 0x8903) {
2055 		dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
2056 		ret = -ENODEV;
2057 		goto err;
2058 	}
2059 
2060 	ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
2061 	if (ret != 0) {
2062 		dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
2063 		goto err;
2064 	}
2065 	dev_info(&i2c->dev, "WM8903 revision %c\n",
2066 		 (val & WM8903_CHIP_REV_MASK) + 'A');
2067 
2068 	/* Reset the device */
2069 	regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
2070 
2071 	wm8903_init_gpio(wm8903);
2072 
2073 	/* Set up GPIO pin state, detect if any are MIC detect outputs */
2074 	for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2075 		if ((!pdata->gpio_cfg[i]) ||
2076 		    (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
2077 			continue;
2078 
2079 		regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
2080 				pdata->gpio_cfg[i] & 0x7fff);
2081 
2082 		val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
2083 			>> WM8903_GP1_FN_SHIFT;
2084 
2085 		switch (val) {
2086 		case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
2087 		case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
2088 			mic_gpio = true;
2089 			break;
2090 		default:
2091 			break;
2092 		}
2093 	}
2094 
2095 	/* Set up microphone detection */
2096 	regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
2097 		     pdata->micdet_cfg);
2098 
2099 	/* Microphone detection needs the WSEQ clock */
2100 	if (pdata->micdet_cfg)
2101 		regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
2102 				   WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
2103 
2104 	/* If microphone detection is enabled by pdata but
2105 	 * detected via IRQ then interrupts can be lost before
2106 	 * the machine driver has set up microphone detection
2107 	 * IRQs as the IRQs are clear on read.  The detection
2108 	 * will be enabled when the machine driver configures.
2109 	 */
2110 	WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
2111 
2112 	wm8903->mic_delay = pdata->micdet_delay;
2113 
2114 	if (i2c->irq) {
2115 		if (pdata->irq_active_low) {
2116 			trigger = IRQF_TRIGGER_LOW;
2117 			irq_pol = WM8903_IRQ_POL;
2118 		} else {
2119 			trigger = IRQF_TRIGGER_HIGH;
2120 			irq_pol = 0;
2121 		}
2122 
2123 		regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
2124 				   WM8903_IRQ_POL, irq_pol);
2125 
2126 		ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
2127 					   trigger | IRQF_ONESHOT,
2128 					   "wm8903", wm8903);
2129 		if (ret != 0) {
2130 			dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
2131 				ret);
2132 			goto err;
2133 		}
2134 
2135 		/* Enable write sequencer interrupts */
2136 		regmap_update_bits(wm8903->regmap,
2137 				   WM8903_INTERRUPT_STATUS_1_MASK,
2138 				   WM8903_IM_WSEQ_BUSY_EINT, 0);
2139 	}
2140 
2141 	/* Latch volume update bits */
2142 	regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
2143 			   WM8903_ADCVU, WM8903_ADCVU);
2144 	regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
2145 			   WM8903_ADCVU, WM8903_ADCVU);
2146 
2147 	regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
2148 			   WM8903_DACVU, WM8903_DACVU);
2149 	regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
2150 			   WM8903_DACVU, WM8903_DACVU);
2151 
2152 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
2153 			   WM8903_HPOUTVU, WM8903_HPOUTVU);
2154 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
2155 			   WM8903_HPOUTVU, WM8903_HPOUTVU);
2156 
2157 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
2158 			   WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2159 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
2160 			   WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2161 
2162 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
2163 			   WM8903_SPKVU, WM8903_SPKVU);
2164 	regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
2165 			   WM8903_SPKVU, WM8903_SPKVU);
2166 
2167 	/* Enable DAC soft mute by default */
2168 	regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
2169 			   WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
2170 			   WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
2171 
2172 	ret = devm_snd_soc_register_component(&i2c->dev,
2173 			&soc_component_dev_wm8903, &wm8903_dai, 1);
2174 	if (ret != 0)
2175 		goto err;
2176 
2177 	return 0;
2178 err:
2179 	regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
2180 			       wm8903->supplies);
2181 	return ret;
2182 }
2183 
wm8903_i2c_remove(struct i2c_client * client)2184 static void wm8903_i2c_remove(struct i2c_client *client)
2185 {
2186 	struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
2187 
2188 	regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
2189 			       wm8903->supplies);
2190 	if (client->irq)
2191 		free_irq(client->irq, wm8903);
2192 	wm8903_free_gpio(wm8903);
2193 }
2194 
2195 static const struct of_device_id wm8903_of_match[] = {
2196 	{ .compatible = "wlf,wm8903", },
2197 	{},
2198 };
2199 MODULE_DEVICE_TABLE(of, wm8903_of_match);
2200 
2201 static const struct i2c_device_id wm8903_i2c_id[] = {
2202 	{ "wm8903", 0 },
2203 	{ }
2204 };
2205 MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
2206 
2207 static struct i2c_driver wm8903_i2c_driver = {
2208 	.driver = {
2209 		.name = "wm8903",
2210 		.of_match_table = wm8903_of_match,
2211 	},
2212 	.probe =    wm8903_i2c_probe,
2213 	.remove =   wm8903_i2c_remove,
2214 	.id_table = wm8903_i2c_id,
2215 };
2216 
2217 module_i2c_driver(wm8903_i2c_driver);
2218 
2219 MODULE_DESCRIPTION("ASoC WM8903 driver");
2220 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
2221 MODULE_LICENSE("GPL");
2222