xref: /linux/sound/soc/codecs/tlv320aic31xx.c (revision 7ec462100ef9142344ddbf86f2c3008b97acddbe)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * ALSA SoC TLV320AIC31xx CODEC Driver
4  *
5  * Copyright (C) 2014-2017 Texas Instruments Incorporated - https://www.ti.com/
6  *	Jyri Sarha <jsarha@ti.com>
7  *
8  * Based on ground work by: Ajit Kulkarni <x0175765@ti.com>
9  *
10  * The TLV320AIC31xx series of audio codecs are low-power, highly integrated
11  * high performance codecs which provides a stereo DAC, a mono ADC,
12  * and mono/stereo Class-D speaker driver.
13  */
14 
15 #include <linux/unaligned.h>
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/init.h>
19 #include <linux/clk.h>
20 #include <linux/delay.h>
21 #include <linux/pm.h>
22 #include <linux/i2c.h>
23 #include <linux/gpio/consumer.h>
24 #include <linux/regulator/consumer.h>
25 #include <linux/acpi.h>
26 #include <linux/firmware.h>
27 #include <linux/of.h>
28 #include <linux/slab.h>
29 #include <sound/core.h>
30 #include <sound/jack.h>
31 #include <sound/pcm.h>
32 #include <sound/pcm_params.h>
33 #include <sound/soc.h>
34 #include <sound/initval.h>
35 #include <sound/tlv.h>
36 #include <dt-bindings/sound/tlv320aic31xx.h>
37 
38 #include "tlv320aic31xx.h"
39 
40 static int aic31xx_set_jack(struct snd_soc_component *component,
41                             struct snd_soc_jack *jack, void *data);
42 
43 static const struct reg_default aic31xx_reg_defaults[] = {
44 	{ AIC31XX_CLKMUX, 0x00 },
45 	{ AIC31XX_PLLPR, 0x11 },
46 	{ AIC31XX_PLLJ, 0x04 },
47 	{ AIC31XX_PLLDMSB, 0x00 },
48 	{ AIC31XX_PLLDLSB, 0x00 },
49 	{ AIC31XX_NDAC, 0x01 },
50 	{ AIC31XX_MDAC, 0x01 },
51 	{ AIC31XX_DOSRMSB, 0x00 },
52 	{ AIC31XX_DOSRLSB, 0x80 },
53 	{ AIC31XX_NADC, 0x01 },
54 	{ AIC31XX_MADC, 0x01 },
55 	{ AIC31XX_AOSR, 0x80 },
56 	{ AIC31XX_IFACE1, 0x00 },
57 	{ AIC31XX_DATA_OFFSET, 0x00 },
58 	{ AIC31XX_IFACE2, 0x00 },
59 	{ AIC31XX_BCLKN, 0x01 },
60 	{ AIC31XX_DACSETUP, 0x14 },
61 	{ AIC31XX_DACMUTE, 0x0c },
62 	{ AIC31XX_LDACVOL, 0x00 },
63 	{ AIC31XX_RDACVOL, 0x00 },
64 	{ AIC31XX_ADCSETUP, 0x00 },
65 	{ AIC31XX_ADCFGA, 0x80 },
66 	{ AIC31XX_ADCVOL, 0x00 },
67 	{ AIC31XX_HPDRIVER, 0x04 },
68 	{ AIC31XX_SPKAMP, 0x06 },
69 	{ AIC31XX_DACMIXERROUTE, 0x00 },
70 	{ AIC31XX_LANALOGHPL, 0x7f },
71 	{ AIC31XX_RANALOGHPR, 0x7f },
72 	{ AIC31XX_LANALOGSPL, 0x7f },
73 	{ AIC31XX_RANALOGSPR, 0x7f },
74 	{ AIC31XX_HPLGAIN, 0x02 },
75 	{ AIC31XX_HPRGAIN, 0x02 },
76 	{ AIC31XX_SPLGAIN, 0x00 },
77 	{ AIC31XX_SPRGAIN, 0x00 },
78 	{ AIC31XX_MICBIAS, 0x00 },
79 	{ AIC31XX_MICPGA, 0x80 },
80 	{ AIC31XX_MICPGAPI, 0x00 },
81 	{ AIC31XX_MICPGAMI, 0x00 },
82 };
83 
aic31xx_volatile(struct device * dev,unsigned int reg)84 static bool aic31xx_volatile(struct device *dev, unsigned int reg)
85 {
86 	switch (reg) {
87 	case AIC31XX_PAGECTL: /* regmap implementation requires this */
88 	case AIC31XX_RESET: /* always clears after write */
89 	case AIC31XX_OT_FLAG:
90 	case AIC31XX_ADCFLAG:
91 	case AIC31XX_DACFLAG1:
92 	case AIC31XX_DACFLAG2:
93 	case AIC31XX_OFFLAG: /* Sticky interrupt flags */
94 	case AIC31XX_INTRDACFLAG: /* Sticky interrupt flags */
95 	case AIC31XX_INTRADCFLAG: /* Sticky interrupt flags */
96 	case AIC31XX_INTRDACFLAG2:
97 	case AIC31XX_INTRADCFLAG2:
98 	case AIC31XX_HSDETECT:
99 		return true;
100 	}
101 	return false;
102 }
103 
aic31xx_writeable(struct device * dev,unsigned int reg)104 static bool aic31xx_writeable(struct device *dev, unsigned int reg)
105 {
106 	switch (reg) {
107 	case AIC31XX_OT_FLAG:
108 	case AIC31XX_ADCFLAG:
109 	case AIC31XX_DACFLAG1:
110 	case AIC31XX_DACFLAG2:
111 	case AIC31XX_OFFLAG: /* Sticky interrupt flags */
112 	case AIC31XX_INTRDACFLAG: /* Sticky interrupt flags */
113 	case AIC31XX_INTRADCFLAG: /* Sticky interrupt flags */
114 	case AIC31XX_INTRDACFLAG2:
115 	case AIC31XX_INTRADCFLAG2:
116 		return false;
117 	}
118 	return true;
119 }
120 
121 static const struct regmap_range_cfg aic31xx_ranges[] = {
122 	{
123 		.range_min = 0,
124 		.range_max = 12 * 128,
125 		.selector_reg = AIC31XX_PAGECTL,
126 		.selector_mask = 0xff,
127 		.selector_shift = 0,
128 		.window_start = 0,
129 		.window_len = 128,
130 	},
131 };
132 
133 static const struct regmap_config aic31xx_i2c_regmap = {
134 	.reg_bits = 8,
135 	.val_bits = 8,
136 	.writeable_reg = aic31xx_writeable,
137 	.volatile_reg = aic31xx_volatile,
138 	.reg_defaults = aic31xx_reg_defaults,
139 	.num_reg_defaults = ARRAY_SIZE(aic31xx_reg_defaults),
140 	.cache_type = REGCACHE_RBTREE,
141 	.ranges = aic31xx_ranges,
142 	.num_ranges = ARRAY_SIZE(aic31xx_ranges),
143 	.max_register = 12 * 128,
144 };
145 
146 static const char * const aic31xx_supply_names[] = {
147 	"HPVDD",
148 	"SPRVDD",
149 	"SPLVDD",
150 	"AVDD",
151 	"IOVDD",
152 	"DVDD",
153 };
154 
155 #define AIC31XX_NUM_SUPPLIES ARRAY_SIZE(aic31xx_supply_names)
156 
157 struct aic31xx_disable_nb {
158 	struct notifier_block nb;
159 	struct aic31xx_priv *aic31xx;
160 };
161 
162 struct aic31xx_priv {
163 	struct snd_soc_component *component;
164 	u8 i2c_regs_status;
165 	struct device *dev;
166 	struct regmap *regmap;
167 	enum aic31xx_type codec_type;
168 	struct gpio_desc *gpio_reset;
169 	int micbias_vg;
170 	struct aic31xx_pdata pdata;
171 	struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
172 	struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
173 	struct snd_soc_jack *jack;
174 	u32 sysclk_id;
175 	unsigned int sysclk;
176 	u8 p_div;
177 	int rate_div_line;
178 	bool master_dapm_route_applied;
179 	int irq;
180 	u8 ocmv; /* output common-mode voltage */
181 };
182 
183 struct aic31xx_rate_divs {
184 	u32 mclk_p;
185 	u32 rate;
186 	u8 pll_r;
187 	u8 pll_j;
188 	u16 pll_d;
189 	u16 dosr;
190 	u8 ndac;
191 	u8 mdac;
192 	u8 aosr;
193 	u8 nadc;
194 	u8 madc;
195 };
196 
197 /* ADC dividers can be disabled by configuring them to 0 */
198 static const struct aic31xx_rate_divs aic31xx_divs[] = {
199 	/* mclk/p    rate  pll: r  j     d     dosr ndac mdac  aors nadc madc */
200 	/* 8k rate */
201 	{  512000,   8000,	4, 48,   0,	128,  48,  2,   128,  48,  2},
202 	{12000000,   8000,	1, 8, 1920,	128,  48,  2,	128,  48,  2},
203 	{12000000,   8000,	1, 8, 1920,	128,  32,  3,	128,  32,  3},
204 	{12500000,   8000,	1, 7, 8643,	128,  48,  2,	128,  48,  2},
205 	/* 11.025k rate */
206 	{  705600,  11025,	3, 48,   0,	128,  24,  3,	128,  24,  3},
207 	{12000000,  11025,	1, 7, 5264,	128,  32,  2,	128,  32,  2},
208 	{12000000,  11025,	1, 8, 4672,	128,  24,  3,	128,  24,  3},
209 	{12500000,  11025,	1, 7, 2253,	128,  32,  2,	128,  32,  2},
210 	/* 16k rate */
211 	{  512000,  16000,	4, 48,   0,	128,  16,  3,	128,  16,  3},
212 	{ 1024000,  16000,	2, 48,   0,	128,  16,  3,	128,  16,  3},
213 	{12000000,  16000,	1, 8, 1920,	128,  24,  2,	128,  24,  2},
214 	{12000000,  16000,	1, 8, 1920,	128,  16,  3,	128,  16,  3},
215 	{12500000,  16000,	1, 7, 8643,	128,  24,  2,	128,  24,  2},
216 	/* 22.05k rate */
217 	{  705600,  22050,	4, 36,   0,	128,  12,  3,	128,  12,  3},
218 	{ 1411200,  22050,	2, 36,   0,	128,  12,  3,	128,  12,  3},
219 	{12000000,  22050,	1, 7, 5264,	128,  16,  2,	128,  16,  2},
220 	{12000000,  22050,	1, 8, 4672,	128,  12,  3,	128,  12,  3},
221 	{12500000,  22050,	1, 7, 2253,	128,  16,  2,	128,  16,  2},
222 	/* 32k rate */
223 	{ 1024000,  32000,      2, 48,   0,	128,  12,  2,	128,  12,  2},
224 	{ 2048000,  32000,      1, 48,   0,	128,  12,  2,	128,  12,  2},
225 	{12000000,  32000,	1, 8, 1920,	128,  12,  2,	128,  12,  2},
226 	{12000000,  32000,	1, 8, 1920,	128,   8,  3,	128,   8,  3},
227 	{12500000,  32000,	1, 7, 8643,	128,  12,  2,	128,  12,  2},
228 	/* 44.1k rate */
229 	{ 1411200,  44100,	2, 32,   0,	128,   8,  2,	128,   8,  2},
230 	{ 2822400,  44100,	1, 32,   0,	128,   8,  2,	128,   8,  2},
231 	{12000000,  44100,	1, 7, 5264,	128,   8,  2,	128,   8,  2},
232 	{12000000,  44100,	1, 8, 4672,	128,   6,  3,	128,   6,  3},
233 	{12500000,  44100,	1, 7, 2253,	128,   8,  2,	128,   8,  2},
234 	/* 48k rate */
235 	{ 1536000,  48000,	2, 32,   0,	128,   8,  2,	128,   8,  2},
236 	{ 3072000,  48000,	1, 32,   0,	128,   8,  2,	128,   8,  2},
237 	{12000000,  48000,	1, 8, 1920,	128,   8,  2,	128,   8,  2},
238 	{12000000,  48000,	1, 7, 6800,	 96,   5,  4,	 96,   5,  4},
239 	{12500000,  48000,	1, 7, 8643,	128,   8,  2,	128,   8,  2},
240 	/* 88.2k rate */
241 	{ 2822400,  88200,	2, 16,   0,	 64,   8,  2,	 64,   8,  2},
242 	{ 5644800,  88200,	1, 16,   0,	 64,   8,  2,	 64,   8,  2},
243 	{12000000,  88200,	1, 7, 5264,	 64,   8,  2,	 64,   8,  2},
244 	{12000000,  88200,	1, 8, 4672,	 64,   6,  3,	 64,   6,  3},
245 	{12500000,  88200,	1, 7, 2253,	 64,   8,  2,	 64,   8,  2},
246 	/* 96k rate */
247 	{ 3072000,  96000,	2, 16,   0,	 64,   8,  2,	 64,   8,  2},
248 	{ 6144000,  96000,	1, 16,   0,	 64,   8,  2,	 64,   8,  2},
249 	{12000000,  96000,	1, 8, 1920,	 64,   8,  2,	 64,   8,  2},
250 	{12000000,  96000,	1, 7, 6800,	 48,   5,  4,	 48,   5,  4},
251 	{12500000,  96000,	1, 7, 8643,	 64,   8,  2,	 64,   8,  2},
252 	/* 176.4k rate */
253 	{ 5644800, 176400,	2, 8,    0,	 32,   8,  2,	 32,   8,  2},
254 	{11289600, 176400,	1, 8,    0,	 32,   8,  2,	 32,   8,  2},
255 	{12000000, 176400,	1, 7, 5264,	 32,   8,  2,	 32,   8,  2},
256 	{12000000, 176400,	1, 8, 4672,	 32,   6,  3,	 32,   6,  3},
257 	{12500000, 176400,	1, 7, 2253,	 32,   8,  2,	 32,   8,  2},
258 	/* 192k rate */
259 	{ 6144000, 192000,	2, 8,	 0,	 32,   8,  2,	 32,   8,  2},
260 	{12288000, 192000,	1, 8,	 0,	 32,   8,  2,	 32,   8,  2},
261 	{12000000, 192000,	1, 8, 1920,	 32,   8,  2,	 32,   8,  2},
262 	{12000000, 192000,	1, 7, 6800,	 24,   5,  4,	 24,   5,  4},
263 	{12500000, 192000,	1, 7, 8643,	 32,   8,  2,	 32,   8,  2},
264 };
265 
266 static const char * const ldac_in_text[] = {
267 	"Off", "Left Data", "Right Data", "Mono"
268 };
269 
270 static const char * const rdac_in_text[] = {
271 	"Off", "Right Data", "Left Data", "Mono"
272 };
273 
274 static SOC_ENUM_SINGLE_DECL(ldac_in_enum, AIC31XX_DACSETUP, 4, ldac_in_text);
275 
276 static SOC_ENUM_SINGLE_DECL(rdac_in_enum, AIC31XX_DACSETUP, 2, rdac_in_text);
277 
278 static const char * const mic_select_text[] = {
279 	"Off", "FFR 10 Ohm", "FFR 20 Ohm", "FFR 40 Ohm"
280 };
281 
282 static SOC_ENUM_SINGLE_DECL(mic1lp_p_enum, AIC31XX_MICPGAPI, 6,
283 	mic_select_text);
284 static SOC_ENUM_SINGLE_DECL(mic1rp_p_enum, AIC31XX_MICPGAPI, 4,
285 	mic_select_text);
286 static SOC_ENUM_SINGLE_DECL(mic1lm_p_enum, AIC31XX_MICPGAPI, 2,
287 	mic_select_text);
288 
289 static SOC_ENUM_SINGLE_DECL(mic1lm_m_enum, AIC31XX_MICPGAMI, 4,
290 	mic_select_text);
291 
292 static const char * const hp_poweron_time_text[] = {
293 	"0us", "15.3us", "153us", "1.53ms", "15.3ms", "76.2ms",
294 	"153ms", "304ms", "610ms", "1.22s", "3.04s", "6.1s" };
295 
296 static SOC_ENUM_SINGLE_DECL(hp_poweron_time_enum, AIC31XX_HPPOP, 3,
297 	hp_poweron_time_text);
298 
299 static const char * const hp_rampup_step_text[] = {
300 	"0ms", "0.98ms", "1.95ms", "3.9ms" };
301 
302 static SOC_ENUM_SINGLE_DECL(hp_rampup_step_enum, AIC31XX_HPPOP, 1,
303 	hp_rampup_step_text);
304 
305 static const char * const vol_soft_step_mode_text[] = {
306 	"fast", "slow", "disabled" };
307 
308 static SOC_ENUM_SINGLE_DECL(vol_soft_step_mode_enum, AIC31XX_DACSETUP, 0,
309 	vol_soft_step_mode_text);
310 
311 static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -6350, 50, 0);
312 static const DECLARE_TLV_DB_SCALE(adc_fgain_tlv, 0, 10, 0);
313 static const DECLARE_TLV_DB_SCALE(adc_cgain_tlv, -2000, 50, 0);
314 static const DECLARE_TLV_DB_SCALE(mic_pga_tlv, 0, 50, 0);
315 static const DECLARE_TLV_DB_SCALE(hp_drv_tlv, 0, 100, 0);
316 static const DECLARE_TLV_DB_SCALE(class_D_drv_tlv, 600, 600, 0);
317 static const DECLARE_TLV_DB_SCALE(hp_vol_tlv, -6350, 50, 0);
318 static const DECLARE_TLV_DB_SCALE(sp_vol_tlv, -6350, 50, 0);
319 
320 /*
321  * controls to be exported to the user space
322  */
323 static const struct snd_kcontrol_new common31xx_snd_controls[] = {
324 	SOC_DOUBLE_R_S_TLV("DAC Playback Volume", AIC31XX_LDACVOL,
325 			   AIC31XX_RDACVOL, 0, -127, 48, 7, 0, dac_vol_tlv),
326 
327 	SOC_DOUBLE_R("HP Driver Playback Switch", AIC31XX_HPLGAIN,
328 		     AIC31XX_HPRGAIN, 2, 1, 0),
329 	SOC_DOUBLE_R_TLV("HP Driver Playback Volume", AIC31XX_HPLGAIN,
330 			 AIC31XX_HPRGAIN, 3, 0x09, 0, hp_drv_tlv),
331 
332 	SOC_DOUBLE_R_TLV("HP Analog Playback Volume", AIC31XX_LANALOGHPL,
333 			 AIC31XX_RANALOGHPR, 0, 0x7F, 1, hp_vol_tlv),
334 
335 	/* HP de-pop control: apply power not immediately but via ramp
336 	 * function with these psarameters. Note that power up sequence
337 	 * has to wait for this to complete; this is implemented by
338 	 * polling HP driver status in aic31xx_dapm_power_event()
339 	 */
340 	SOC_ENUM("HP Output Driver Power-On time", hp_poweron_time_enum),
341 	SOC_ENUM("HP Output Driver Ramp-up step", hp_rampup_step_enum),
342 
343 	SOC_ENUM("Volume Soft Stepping", vol_soft_step_mode_enum),
344 };
345 
346 static const struct snd_kcontrol_new aic31xx_snd_controls[] = {
347 	SOC_SINGLE_TLV("ADC Fine Capture Volume", AIC31XX_ADCFGA, 4, 4, 1,
348 		       adc_fgain_tlv),
349 
350 	SOC_SINGLE("ADC Capture Switch", AIC31XX_ADCFGA, 7, 1, 1),
351 	SOC_DOUBLE_R_S_TLV("ADC Capture Volume", AIC31XX_ADCVOL, AIC31XX_ADCVOL,
352 			   0, -24, 40, 6, 0, adc_cgain_tlv),
353 
354 	SOC_SINGLE_TLV("Mic PGA Capture Volume", AIC31XX_MICPGA, 0,
355 		       119, 0, mic_pga_tlv),
356 };
357 
358 static const struct snd_kcontrol_new aic311x_snd_controls[] = {
359 	SOC_DOUBLE_R("Speaker Driver Playback Switch", AIC31XX_SPLGAIN,
360 		     AIC31XX_SPRGAIN, 2, 1, 0),
361 	SOC_DOUBLE_R_TLV("Speaker Driver Playback Volume", AIC31XX_SPLGAIN,
362 			 AIC31XX_SPRGAIN, 3, 3, 0, class_D_drv_tlv),
363 
364 	SOC_DOUBLE_R_TLV("Speaker Analog Playback Volume", AIC31XX_LANALOGSPL,
365 			 AIC31XX_RANALOGSPR, 0, 0x7F, 1, sp_vol_tlv),
366 };
367 
368 static const struct snd_kcontrol_new aic310x_snd_controls[] = {
369 	SOC_SINGLE("Speaker Driver Playback Switch", AIC31XX_SPLGAIN,
370 		   2, 1, 0),
371 	SOC_SINGLE_TLV("Speaker Driver Playback Volume", AIC31XX_SPLGAIN,
372 		       3, 3, 0, class_D_drv_tlv),
373 
374 	SOC_SINGLE_TLV("Speaker Analog Playback Volume", AIC31XX_LANALOGSPL,
375 		       0, 0x7F, 1, sp_vol_tlv),
376 };
377 
378 static const struct snd_kcontrol_new ldac_in_control =
379 	SOC_DAPM_ENUM("DAC Left Input", ldac_in_enum);
380 
381 static const struct snd_kcontrol_new rdac_in_control =
382 	SOC_DAPM_ENUM("DAC Right Input", rdac_in_enum);
383 
aic31xx_wait_bits(struct aic31xx_priv * aic31xx,unsigned int reg,unsigned int mask,unsigned int wbits,int sleep,int count)384 static int aic31xx_wait_bits(struct aic31xx_priv *aic31xx, unsigned int reg,
385 			     unsigned int mask, unsigned int wbits, int sleep,
386 			     int count)
387 {
388 	unsigned int bits;
389 	int counter = count;
390 	int ret = regmap_read(aic31xx->regmap, reg, &bits);
391 
392 	while ((bits & mask) != wbits && counter && !ret) {
393 		usleep_range(sleep, sleep * 2);
394 		ret = regmap_read(aic31xx->regmap, reg, &bits);
395 		counter--;
396 	}
397 	if ((bits & mask) != wbits) {
398 		dev_err(aic31xx->dev,
399 			"%s: Failed! 0x%x was 0x%x expected 0x%x (%d, 0x%x, %d us)\n",
400 			__func__, reg, bits, wbits, ret, mask,
401 			(count - counter) * sleep);
402 		ret = -1;
403 	}
404 	return ret;
405 }
406 
407 #define WIDGET_BIT(reg, shift) (((shift) << 8) | (reg))
408 
aic31xx_dapm_power_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)409 static int aic31xx_dapm_power_event(struct snd_soc_dapm_widget *w,
410 				    struct snd_kcontrol *kcontrol, int event)
411 {
412 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
413 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
414 	unsigned int reg = AIC31XX_DACFLAG1;
415 	unsigned int mask;
416 	unsigned int timeout = 500 * USEC_PER_MSEC;
417 
418 	switch (WIDGET_BIT(w->reg, w->shift)) {
419 	case WIDGET_BIT(AIC31XX_DACSETUP, 7):
420 		mask = AIC31XX_LDACPWRSTATUS_MASK;
421 		break;
422 	case WIDGET_BIT(AIC31XX_DACSETUP, 6):
423 		mask = AIC31XX_RDACPWRSTATUS_MASK;
424 		break;
425 	case WIDGET_BIT(AIC31XX_HPDRIVER, 7):
426 		mask = AIC31XX_HPLDRVPWRSTATUS_MASK;
427 		if (event == SND_SOC_DAPM_POST_PMU)
428 			timeout = 7 * USEC_PER_SEC;
429 		break;
430 	case WIDGET_BIT(AIC31XX_HPDRIVER, 6):
431 		mask = AIC31XX_HPRDRVPWRSTATUS_MASK;
432 		if (event == SND_SOC_DAPM_POST_PMU)
433 			timeout = 7 * USEC_PER_SEC;
434 		break;
435 	case WIDGET_BIT(AIC31XX_SPKAMP, 7):
436 		mask = AIC31XX_SPLDRVPWRSTATUS_MASK;
437 		break;
438 	case WIDGET_BIT(AIC31XX_SPKAMP, 6):
439 		mask = AIC31XX_SPRDRVPWRSTATUS_MASK;
440 		break;
441 	case WIDGET_BIT(AIC31XX_ADCSETUP, 7):
442 		mask = AIC31XX_ADCPWRSTATUS_MASK;
443 		reg = AIC31XX_ADCFLAG;
444 		break;
445 	default:
446 		dev_err(component->dev, "Unknown widget '%s' calling %s\n",
447 			w->name, __func__);
448 		return -EINVAL;
449 	}
450 
451 	switch (event) {
452 	case SND_SOC_DAPM_POST_PMU:
453 		return aic31xx_wait_bits(aic31xx, reg, mask, mask,
454 				5000, timeout / 5000);
455 	case SND_SOC_DAPM_POST_PMD:
456 		return aic31xx_wait_bits(aic31xx, reg, mask, 0,
457 				5000, timeout / 5000);
458 	default:
459 		dev_dbg(component->dev,
460 			"Unhandled dapm widget event %d from %s\n",
461 			event, w->name);
462 	}
463 	return 0;
464 }
465 
466 static const struct snd_kcontrol_new aic31xx_left_output_switches[] = {
467 	SOC_DAPM_SINGLE("From Left DAC", AIC31XX_DACMIXERROUTE, 6, 1, 0),
468 	SOC_DAPM_SINGLE("From MIC1LP", AIC31XX_DACMIXERROUTE, 5, 1, 0),
469 	SOC_DAPM_SINGLE("From MIC1RP", AIC31XX_DACMIXERROUTE, 4, 1, 0),
470 };
471 
472 static const struct snd_kcontrol_new aic31xx_right_output_switches[] = {
473 	SOC_DAPM_SINGLE("From Right DAC", AIC31XX_DACMIXERROUTE, 2, 1, 0),
474 	SOC_DAPM_SINGLE("From MIC1RP", AIC31XX_DACMIXERROUTE, 1, 1, 0),
475 };
476 
477 static const struct snd_kcontrol_new dac31xx_left_output_switches[] = {
478 	SOC_DAPM_SINGLE("From Left DAC", AIC31XX_DACMIXERROUTE, 6, 1, 0),
479 	SOC_DAPM_SINGLE("From AIN1", AIC31XX_DACMIXERROUTE, 5, 1, 0),
480 	SOC_DAPM_SINGLE("From AIN2", AIC31XX_DACMIXERROUTE, 4, 1, 0),
481 };
482 
483 static const struct snd_kcontrol_new dac31xx_right_output_switches[] = {
484 	SOC_DAPM_SINGLE("From Right DAC", AIC31XX_DACMIXERROUTE, 2, 1, 0),
485 	SOC_DAPM_SINGLE("From AIN2", AIC31XX_DACMIXERROUTE, 1, 1, 0),
486 };
487 
488 static const struct snd_kcontrol_new p_term_mic1lp =
489 	SOC_DAPM_ENUM("MIC1LP P-Terminal", mic1lp_p_enum);
490 
491 static const struct snd_kcontrol_new p_term_mic1rp =
492 	SOC_DAPM_ENUM("MIC1RP P-Terminal", mic1rp_p_enum);
493 
494 static const struct snd_kcontrol_new p_term_mic1lm =
495 	SOC_DAPM_ENUM("MIC1LM P-Terminal", mic1lm_p_enum);
496 
497 static const struct snd_kcontrol_new m_term_mic1lm =
498 	SOC_DAPM_ENUM("MIC1LM M-Terminal", mic1lm_m_enum);
499 
500 static const struct snd_kcontrol_new aic31xx_dapm_hpl_switch =
501 	SOC_DAPM_SINGLE("Switch", AIC31XX_LANALOGHPL, 7, 1, 0);
502 
503 static const struct snd_kcontrol_new aic31xx_dapm_hpr_switch =
504 	SOC_DAPM_SINGLE("Switch", AIC31XX_RANALOGHPR, 7, 1, 0);
505 
506 static const struct snd_kcontrol_new aic31xx_dapm_spl_switch =
507 	SOC_DAPM_SINGLE("Switch", AIC31XX_LANALOGSPL, 7, 1, 0);
508 
509 static const struct snd_kcontrol_new aic31xx_dapm_spr_switch =
510 	SOC_DAPM_SINGLE("Switch", AIC31XX_RANALOGSPR, 7, 1, 0);
511 
mic_bias_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)512 static int mic_bias_event(struct snd_soc_dapm_widget *w,
513 			  struct snd_kcontrol *kcontrol, int event)
514 {
515 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
516 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
517 
518 	switch (event) {
519 	case SND_SOC_DAPM_POST_PMU:
520 		/* change mic bias voltage to user defined */
521 		snd_soc_component_update_bits(component, AIC31XX_MICBIAS,
522 				    AIC31XX_MICBIAS_MASK,
523 				    aic31xx->micbias_vg <<
524 				    AIC31XX_MICBIAS_SHIFT);
525 		dev_dbg(component->dev, "%s: turned on\n", __func__);
526 		break;
527 	case SND_SOC_DAPM_PRE_PMD:
528 		/* turn mic bias off */
529 		snd_soc_component_update_bits(component, AIC31XX_MICBIAS,
530 				    AIC31XX_MICBIAS_MASK, 0);
531 		dev_dbg(component->dev, "%s: turned off\n", __func__);
532 		break;
533 	}
534 	return 0;
535 }
536 
537 static const struct snd_soc_dapm_widget common31xx_dapm_widgets[] = {
538 	SND_SOC_DAPM_AIF_IN("AIF IN", "Playback", 0, SND_SOC_NOPM, 0, 0),
539 
540 	SND_SOC_DAPM_MUX("DAC Left Input",
541 			 SND_SOC_NOPM, 0, 0, &ldac_in_control),
542 	SND_SOC_DAPM_MUX("DAC Right Input",
543 			 SND_SOC_NOPM, 0, 0, &rdac_in_control),
544 	/* DACs */
545 	SND_SOC_DAPM_DAC_E("DAC Left", "Left Playback",
546 			   AIC31XX_DACSETUP, 7, 0, aic31xx_dapm_power_event,
547 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
548 
549 	SND_SOC_DAPM_DAC_E("DAC Right", "Right Playback",
550 			   AIC31XX_DACSETUP, 6, 0, aic31xx_dapm_power_event,
551 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
552 
553 	/* HP */
554 	SND_SOC_DAPM_SWITCH("HP Left", SND_SOC_NOPM, 0, 0,
555 			    &aic31xx_dapm_hpl_switch),
556 	SND_SOC_DAPM_SWITCH("HP Right", SND_SOC_NOPM, 0, 0,
557 			    &aic31xx_dapm_hpr_switch),
558 
559 	/* Output drivers */
560 	SND_SOC_DAPM_OUT_DRV_E("HPL Driver", AIC31XX_HPDRIVER, 7, 0,
561 			       NULL, 0, aic31xx_dapm_power_event,
562 			       SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU),
563 	SND_SOC_DAPM_OUT_DRV_E("HPR Driver", AIC31XX_HPDRIVER, 6, 0,
564 			       NULL, 0, aic31xx_dapm_power_event,
565 			       SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU),
566 
567 	/* Mic Bias */
568 	SND_SOC_DAPM_SUPPLY("MICBIAS", SND_SOC_NOPM, 0, 0, mic_bias_event,
569 			    SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
570 
571 	/* Keep BCLK/WCLK enabled even if DAC/ADC is powered down */
572 	SND_SOC_DAPM_SUPPLY("Activate I2S clocks", AIC31XX_IFACE2, 2, 0,
573 			    NULL, 0),
574 
575 	/* Outputs */
576 	SND_SOC_DAPM_OUTPUT("HPL"),
577 	SND_SOC_DAPM_OUTPUT("HPR"),
578 };
579 
580 static const struct snd_soc_dapm_widget dac31xx_dapm_widgets[] = {
581 	/* Inputs */
582 	SND_SOC_DAPM_INPUT("AIN1"),
583 	SND_SOC_DAPM_INPUT("AIN2"),
584 
585 	/* Output Mixers */
586 	SND_SOC_DAPM_MIXER("Output Left", SND_SOC_NOPM, 0, 0,
587 			   dac31xx_left_output_switches,
588 			   ARRAY_SIZE(dac31xx_left_output_switches)),
589 	SND_SOC_DAPM_MIXER("Output Right", SND_SOC_NOPM, 0, 0,
590 			   dac31xx_right_output_switches,
591 			   ARRAY_SIZE(dac31xx_right_output_switches)),
592 };
593 
594 static const struct snd_soc_dapm_widget aic31xx_dapm_widgets[] = {
595 	/* Inputs */
596 	SND_SOC_DAPM_INPUT("MIC1LP"),
597 	SND_SOC_DAPM_INPUT("MIC1RP"),
598 	SND_SOC_DAPM_INPUT("MIC1LM"),
599 
600 	/* Input Selection to MIC_PGA */
601 	SND_SOC_DAPM_MUX("MIC1LP P-Terminal", SND_SOC_NOPM, 0, 0,
602 			 &p_term_mic1lp),
603 	SND_SOC_DAPM_MUX("MIC1RP P-Terminal", SND_SOC_NOPM, 0, 0,
604 			 &p_term_mic1rp),
605 	SND_SOC_DAPM_MUX("MIC1LM P-Terminal", SND_SOC_NOPM, 0, 0,
606 			 &p_term_mic1lm),
607 
608 	/* ADC */
609 	SND_SOC_DAPM_ADC_E("ADC", "Capture", AIC31XX_ADCSETUP, 7, 0,
610 			   aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU |
611 			   SND_SOC_DAPM_POST_PMD),
612 
613 	SND_SOC_DAPM_MUX("MIC1LM M-Terminal", SND_SOC_NOPM, 0, 0,
614 			 &m_term_mic1lm),
615 
616 	/* Enabling & Disabling MIC Gain Ctl */
617 	SND_SOC_DAPM_PGA("MIC_GAIN_CTL", AIC31XX_MICPGA,
618 			 7, 1, NULL, 0),
619 
620 	/* Output Mixers */
621 	SND_SOC_DAPM_MIXER("Output Left", SND_SOC_NOPM, 0, 0,
622 			   aic31xx_left_output_switches,
623 			   ARRAY_SIZE(aic31xx_left_output_switches)),
624 	SND_SOC_DAPM_MIXER("Output Right", SND_SOC_NOPM, 0, 0,
625 			   aic31xx_right_output_switches,
626 			   ARRAY_SIZE(aic31xx_right_output_switches)),
627 
628 	SND_SOC_DAPM_AIF_OUT("AIF OUT", "Capture", 0, SND_SOC_NOPM, 0, 0),
629 };
630 
631 static const struct snd_soc_dapm_widget aic311x_dapm_widgets[] = {
632 	/* AIC3111 and AIC3110 have stereo class-D amplifier */
633 	SND_SOC_DAPM_OUT_DRV_E("SPL ClassD", AIC31XX_SPKAMP, 7, 0, NULL, 0,
634 			       aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU |
635 			       SND_SOC_DAPM_POST_PMD),
636 	SND_SOC_DAPM_OUT_DRV_E("SPR ClassD", AIC31XX_SPKAMP, 6, 0, NULL, 0,
637 			       aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU |
638 			       SND_SOC_DAPM_POST_PMD),
639 	SND_SOC_DAPM_SWITCH("Speaker Left", SND_SOC_NOPM, 0, 0,
640 			    &aic31xx_dapm_spl_switch),
641 	SND_SOC_DAPM_SWITCH("Speaker Right", SND_SOC_NOPM, 0, 0,
642 			    &aic31xx_dapm_spr_switch),
643 	SND_SOC_DAPM_OUTPUT("SPL"),
644 	SND_SOC_DAPM_OUTPUT("SPR"),
645 };
646 
647 /* AIC3100 and AIC3120 have only mono class-D amplifier */
648 static const struct snd_soc_dapm_widget aic310x_dapm_widgets[] = {
649 	SND_SOC_DAPM_OUT_DRV_E("SPK ClassD", AIC31XX_SPKAMP, 7, 0, NULL, 0,
650 			       aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU |
651 			       SND_SOC_DAPM_POST_PMD),
652 	SND_SOC_DAPM_SWITCH("Speaker", SND_SOC_NOPM, 0, 0,
653 			    &aic31xx_dapm_spl_switch),
654 	SND_SOC_DAPM_OUTPUT("SPK"),
655 };
656 
657 static const struct snd_soc_dapm_route
658 common31xx_audio_map[] = {
659 	/* DAC Input Routing */
660 	{"DAC Left Input", "Left Data", "AIF IN"},
661 	{"DAC Left Input", "Right Data", "AIF IN"},
662 	{"DAC Left Input", "Mono", "AIF IN"},
663 	{"DAC Right Input", "Left Data", "AIF IN"},
664 	{"DAC Right Input", "Right Data", "AIF IN"},
665 	{"DAC Right Input", "Mono", "AIF IN"},
666 	{"DAC Left", NULL, "DAC Left Input"},
667 	{"DAC Right", NULL, "DAC Right Input"},
668 
669 	/* HPL path */
670 	{"HP Left", "Switch", "Output Left"},
671 	{"HPL Driver", NULL, "HP Left"},
672 	{"HPL", NULL, "HPL Driver"},
673 
674 	/* HPR path */
675 	{"HP Right", "Switch", "Output Right"},
676 	{"HPR Driver", NULL, "HP Right"},
677 	{"HPR", NULL, "HPR Driver"},
678 };
679 
680 static const struct snd_soc_dapm_route
681 dac31xx_audio_map[] = {
682 	/* Left Output */
683 	{"Output Left", "From Left DAC", "DAC Left"},
684 	{"Output Left", "From AIN1", "AIN1"},
685 	{"Output Left", "From AIN2", "AIN2"},
686 
687 	/* Right Output */
688 	{"Output Right", "From Right DAC", "DAC Right"},
689 	{"Output Right", "From AIN2", "AIN2"},
690 };
691 
692 static const struct snd_soc_dapm_route
693 aic31xx_audio_map[] = {
694 	/* Mic input */
695 	{"MIC1LP P-Terminal", "FFR 10 Ohm", "MIC1LP"},
696 	{"MIC1LP P-Terminal", "FFR 20 Ohm", "MIC1LP"},
697 	{"MIC1LP P-Terminal", "FFR 40 Ohm", "MIC1LP"},
698 	{"MIC1RP P-Terminal", "FFR 10 Ohm", "MIC1RP"},
699 	{"MIC1RP P-Terminal", "FFR 20 Ohm", "MIC1RP"},
700 	{"MIC1RP P-Terminal", "FFR 40 Ohm", "MIC1RP"},
701 	{"MIC1LM P-Terminal", "FFR 10 Ohm", "MIC1LM"},
702 	{"MIC1LM P-Terminal", "FFR 20 Ohm", "MIC1LM"},
703 	{"MIC1LM P-Terminal", "FFR 40 Ohm", "MIC1LM"},
704 
705 	{"MIC1LM M-Terminal", "FFR 10 Ohm", "MIC1LM"},
706 	{"MIC1LM M-Terminal", "FFR 20 Ohm", "MIC1LM"},
707 	{"MIC1LM M-Terminal", "FFR 40 Ohm", "MIC1LM"},
708 
709 	{"MIC_GAIN_CTL", NULL, "MIC1LP P-Terminal"},
710 	{"MIC_GAIN_CTL", NULL, "MIC1RP P-Terminal"},
711 	{"MIC_GAIN_CTL", NULL, "MIC1LM P-Terminal"},
712 	{"MIC_GAIN_CTL", NULL, "MIC1LM M-Terminal"},
713 
714 	{"ADC", NULL, "MIC_GAIN_CTL"},
715 
716 	{"AIF OUT", NULL, "ADC"},
717 
718 	/* Left Output */
719 	{"Output Left", "From Left DAC", "DAC Left"},
720 	{"Output Left", "From MIC1LP", "MIC1LP"},
721 	{"Output Left", "From MIC1RP", "MIC1RP"},
722 
723 	/* Right Output */
724 	{"Output Right", "From Right DAC", "DAC Right"},
725 	{"Output Right", "From MIC1RP", "MIC1RP"},
726 };
727 
728 static const struct snd_soc_dapm_route
729 aic311x_audio_map[] = {
730 	/* SP L path */
731 	{"Speaker Left", "Switch", "Output Left"},
732 	{"SPL ClassD", NULL, "Speaker Left"},
733 	{"SPL", NULL, "SPL ClassD"},
734 
735 	/* SP R path */
736 	{"Speaker Right", "Switch", "Output Right"},
737 	{"SPR ClassD", NULL, "Speaker Right"},
738 	{"SPR", NULL, "SPR ClassD"},
739 };
740 
741 static const struct snd_soc_dapm_route
742 aic310x_audio_map[] = {
743 	/* SP L path */
744 	{"Speaker", "Switch", "Output Left"},
745 	{"SPK ClassD", NULL, "Speaker"},
746 	{"SPK", NULL, "SPK ClassD"},
747 };
748 
749 /*
750  * Always connected DAPM routes for codec clock master modes.
751  * If the codec is the master on the I2S bus, we need to power up components
752  * to have valid DAC_CLK.
753  *
754  * In order to have the I2S clocks on the bus either the DACs/ADC need to be
755  * enabled, or the P0/R29/D2 (Keep bclk/wclk in power down) need to be set.
756  *
757  * Otherwise the codec will not generate clocks on the bus.
758  */
759 static const struct snd_soc_dapm_route
760 common31xx_cm_audio_map[] = {
761 	{"HPL", NULL, "AIF IN"},
762 	{"HPR", NULL, "AIF IN"},
763 
764 	{"AIF IN", NULL, "Activate I2S clocks"},
765 };
766 
767 static const struct snd_soc_dapm_route
768 aic31xx_cm_audio_map[] = {
769 	{"AIF OUT", NULL, "MIC1LP"},
770 	{"AIF OUT", NULL, "MIC1RP"},
771 	{"AIF OUT", NULL, "MIC1LM"},
772 
773 	{"AIF OUT", NULL, "Activate I2S clocks"},
774 };
775 
aic31xx_add_controls(struct snd_soc_component * component)776 static int aic31xx_add_controls(struct snd_soc_component *component)
777 {
778 	int ret = 0;
779 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
780 
781 	if (!(aic31xx->codec_type & DAC31XX_BIT))
782 		ret = snd_soc_add_component_controls(
783 			component, aic31xx_snd_controls,
784 			ARRAY_SIZE(aic31xx_snd_controls));
785 	if (ret)
786 		return ret;
787 
788 	if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT)
789 		ret = snd_soc_add_component_controls(
790 			component, aic311x_snd_controls,
791 			ARRAY_SIZE(aic311x_snd_controls));
792 	else
793 		ret = snd_soc_add_component_controls(
794 			component, aic310x_snd_controls,
795 			ARRAY_SIZE(aic310x_snd_controls));
796 
797 	return ret;
798 }
799 
aic31xx_add_widgets(struct snd_soc_component * component)800 static int aic31xx_add_widgets(struct snd_soc_component *component)
801 {
802 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
803 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
804 	int ret = 0;
805 
806 	if (aic31xx->codec_type & DAC31XX_BIT) {
807 		ret = snd_soc_dapm_new_controls(
808 			dapm, dac31xx_dapm_widgets,
809 			ARRAY_SIZE(dac31xx_dapm_widgets));
810 		if (ret)
811 			return ret;
812 
813 		ret = snd_soc_dapm_add_routes(dapm, dac31xx_audio_map,
814 					      ARRAY_SIZE(dac31xx_audio_map));
815 		if (ret)
816 			return ret;
817 	} else {
818 		ret = snd_soc_dapm_new_controls(
819 			dapm, aic31xx_dapm_widgets,
820 			ARRAY_SIZE(aic31xx_dapm_widgets));
821 		if (ret)
822 			return ret;
823 
824 		ret = snd_soc_dapm_add_routes(dapm, aic31xx_audio_map,
825 					      ARRAY_SIZE(aic31xx_audio_map));
826 		if (ret)
827 			return ret;
828 	}
829 
830 	if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT) {
831 		ret = snd_soc_dapm_new_controls(
832 			dapm, aic311x_dapm_widgets,
833 			ARRAY_SIZE(aic311x_dapm_widgets));
834 		if (ret)
835 			return ret;
836 
837 		ret = snd_soc_dapm_add_routes(dapm, aic311x_audio_map,
838 					      ARRAY_SIZE(aic311x_audio_map));
839 		if (ret)
840 			return ret;
841 	} else {
842 		ret = snd_soc_dapm_new_controls(
843 			dapm, aic310x_dapm_widgets,
844 			ARRAY_SIZE(aic310x_dapm_widgets));
845 		if (ret)
846 			return ret;
847 
848 		ret = snd_soc_dapm_add_routes(dapm, aic310x_audio_map,
849 					      ARRAY_SIZE(aic310x_audio_map));
850 		if (ret)
851 			return ret;
852 	}
853 
854 	return 0;
855 }
856 
aic31xx_setup_pll(struct snd_soc_component * component,struct snd_pcm_hw_params * params)857 static int aic31xx_setup_pll(struct snd_soc_component *component,
858 			     struct snd_pcm_hw_params *params)
859 {
860 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
861 	int bclk_score = snd_soc_params_to_frame_size(params);
862 	int mclk_p;
863 	int bclk_n = 0;
864 	int match = -1;
865 	int i;
866 
867 	if (!aic31xx->sysclk || !aic31xx->p_div) {
868 		dev_err(component->dev, "Master clock not supplied\n");
869 		return -EINVAL;
870 	}
871 	mclk_p = aic31xx->sysclk / aic31xx->p_div;
872 
873 	/* Use PLL as CODEC_CLKIN and DAC_CLK as BDIV_CLKIN */
874 	snd_soc_component_update_bits(component, AIC31XX_CLKMUX,
875 			    AIC31XX_CODEC_CLKIN_MASK, AIC31XX_CODEC_CLKIN_PLL);
876 	snd_soc_component_update_bits(component, AIC31XX_IFACE2,
877 			    AIC31XX_BDIVCLK_MASK, AIC31XX_DAC2BCLK);
878 
879 	for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++) {
880 		if (aic31xx_divs[i].rate == params_rate(params) &&
881 		    aic31xx_divs[i].mclk_p == mclk_p) {
882 			int s =	(aic31xx_divs[i].dosr * aic31xx_divs[i].mdac) %
883 				snd_soc_params_to_frame_size(params);
884 			int bn = (aic31xx_divs[i].dosr * aic31xx_divs[i].mdac) /
885 				snd_soc_params_to_frame_size(params);
886 			if (s < bclk_score && bn > 0) {
887 				match = i;
888 				bclk_n = bn;
889 				bclk_score = s;
890 			}
891 		}
892 	}
893 
894 	if (match == -1) {
895 		dev_err(component->dev,
896 			"%s: Sample rate (%u) and format not supported\n",
897 			__func__, params_rate(params));
898 		/* See below for details on how to fix this. */
899 		return -EINVAL;
900 	}
901 	if (bclk_score != 0) {
902 		dev_warn(component->dev, "Can not produce exact bitclock");
903 		/* This is fine if using dsp format, but if using i2s
904 		   there may be trouble. To fix the issue edit the
905 		   aic31xx_divs table for your mclk and sample
906 		   rate. Details can be found from:
907 		   https://www.ti.com/lit/ds/symlink/tlv320aic3100.pdf
908 		   Section: 5.6 CLOCK Generation and PLL
909 		*/
910 	}
911 	i = match;
912 
913 	/* PLL configuration */
914 	snd_soc_component_update_bits(component, AIC31XX_PLLPR, AIC31XX_PLL_MASK,
915 			    (aic31xx->p_div << 4) | aic31xx_divs[i].pll_r);
916 	snd_soc_component_write(component, AIC31XX_PLLJ, aic31xx_divs[i].pll_j);
917 
918 	snd_soc_component_write(component, AIC31XX_PLLDMSB,
919 		      aic31xx_divs[i].pll_d >> 8);
920 	snd_soc_component_write(component, AIC31XX_PLLDLSB,
921 		      aic31xx_divs[i].pll_d & 0xff);
922 
923 	/* DAC dividers configuration */
924 	snd_soc_component_update_bits(component, AIC31XX_NDAC, AIC31XX_PLL_MASK,
925 			    aic31xx_divs[i].ndac);
926 	snd_soc_component_update_bits(component, AIC31XX_MDAC, AIC31XX_PLL_MASK,
927 			    aic31xx_divs[i].mdac);
928 
929 	snd_soc_component_write(component, AIC31XX_DOSRMSB, aic31xx_divs[i].dosr >> 8);
930 	snd_soc_component_write(component, AIC31XX_DOSRLSB, aic31xx_divs[i].dosr & 0xff);
931 
932 	/* ADC dividers configuration. Write reset value 1 if not used. */
933 	snd_soc_component_update_bits(component, AIC31XX_NADC, AIC31XX_PLL_MASK,
934 			    aic31xx_divs[i].nadc ? aic31xx_divs[i].nadc : 1);
935 	snd_soc_component_update_bits(component, AIC31XX_MADC, AIC31XX_PLL_MASK,
936 			    aic31xx_divs[i].madc ? aic31xx_divs[i].madc : 1);
937 
938 	snd_soc_component_write(component, AIC31XX_AOSR, aic31xx_divs[i].aosr);
939 
940 	/* Bit clock divider configuration. */
941 	snd_soc_component_update_bits(component, AIC31XX_BCLKN,
942 			    AIC31XX_PLL_MASK, bclk_n);
943 
944 	aic31xx->rate_div_line = i;
945 
946 	dev_dbg(component->dev,
947 		"pll %d.%04d/%d dosr %d n %d m %d aosr %d n %d m %d bclk_n %d\n",
948 		aic31xx_divs[i].pll_j,
949 		aic31xx_divs[i].pll_d,
950 		aic31xx->p_div,
951 		aic31xx_divs[i].dosr,
952 		aic31xx_divs[i].ndac,
953 		aic31xx_divs[i].mdac,
954 		aic31xx_divs[i].aosr,
955 		aic31xx_divs[i].nadc,
956 		aic31xx_divs[i].madc,
957 		bclk_n
958 	);
959 
960 	return 0;
961 }
962 
aic31xx_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)963 static int aic31xx_hw_params(struct snd_pcm_substream *substream,
964 			     struct snd_pcm_hw_params *params,
965 			     struct snd_soc_dai *dai)
966 {
967 	struct snd_soc_component *component = dai->component;
968 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
969 	u8 data = 0;
970 
971 	dev_dbg(component->dev, "## %s: width %d rate %d\n",
972 		__func__, params_width(params),
973 		params_rate(params));
974 
975 	switch (params_width(params)) {
976 	case 16:
977 		break;
978 	case 20:
979 		data = (AIC31XX_WORD_LEN_20BITS <<
980 			AIC31XX_IFACE1_DATALEN_SHIFT);
981 		break;
982 	case 24:
983 		data = (AIC31XX_WORD_LEN_24BITS <<
984 			AIC31XX_IFACE1_DATALEN_SHIFT);
985 		break;
986 	case 32:
987 		data = (AIC31XX_WORD_LEN_32BITS <<
988 			AIC31XX_IFACE1_DATALEN_SHIFT);
989 		break;
990 	default:
991 		dev_err(component->dev, "%s: Unsupported width %d\n",
992 			__func__, params_width(params));
993 		return -EINVAL;
994 	}
995 
996 	snd_soc_component_update_bits(component, AIC31XX_IFACE1,
997 			    AIC31XX_IFACE1_DATALEN_MASK,
998 			    data);
999 
1000 	/*
1001 	 * If BCLK is used as PLL input, the sysclk is determined by the hw
1002 	 * params. So it must be updated here to match the input frequency.
1003 	 */
1004 	if (aic31xx->sysclk_id == AIC31XX_PLL_CLKIN_BCLK) {
1005 		aic31xx->sysclk = params_rate(params) * params_width(params) *
1006 				  params_channels(params);
1007 		aic31xx->p_div = 1;
1008 	}
1009 
1010 	return aic31xx_setup_pll(component, params);
1011 }
1012 
aic31xx_dac_mute(struct snd_soc_dai * codec_dai,int mute,int direction)1013 static int aic31xx_dac_mute(struct snd_soc_dai *codec_dai, int mute,
1014 			    int direction)
1015 {
1016 	struct snd_soc_component *component = codec_dai->component;
1017 
1018 	if (mute) {
1019 		snd_soc_component_update_bits(component, AIC31XX_DACMUTE,
1020 				    AIC31XX_DACMUTE_MASK,
1021 				    AIC31XX_DACMUTE_MASK);
1022 	} else {
1023 		snd_soc_component_update_bits(component, AIC31XX_DACMUTE,
1024 				    AIC31XX_DACMUTE_MASK, 0x0);
1025 	}
1026 
1027 	return 0;
1028 }
1029 
aic31xx_clock_master_routes(struct snd_soc_component * component,unsigned int fmt)1030 static int aic31xx_clock_master_routes(struct snd_soc_component *component,
1031 				       unsigned int fmt)
1032 {
1033 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
1034 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1035 	int ret;
1036 
1037 	fmt &= SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK;
1038 	if (fmt == SND_SOC_DAIFMT_CBC_CFC &&
1039 	    aic31xx->master_dapm_route_applied) {
1040 		/*
1041 		 * Remove the DAPM route(s) for codec clock master modes,
1042 		 * if applied
1043 		 */
1044 		ret = snd_soc_dapm_del_routes(dapm, common31xx_cm_audio_map,
1045 					ARRAY_SIZE(common31xx_cm_audio_map));
1046 		if (!ret && !(aic31xx->codec_type & DAC31XX_BIT))
1047 			ret = snd_soc_dapm_del_routes(dapm,
1048 					aic31xx_cm_audio_map,
1049 					ARRAY_SIZE(aic31xx_cm_audio_map));
1050 
1051 		if (ret)
1052 			return ret;
1053 
1054 		aic31xx->master_dapm_route_applied = false;
1055 	} else if (fmt != SND_SOC_DAIFMT_CBC_CFC &&
1056 		   !aic31xx->master_dapm_route_applied) {
1057 		/*
1058 		 * Add the needed DAPM route(s) for codec clock master modes,
1059 		 * if it is not done already
1060 		 */
1061 		ret = snd_soc_dapm_add_routes(dapm, common31xx_cm_audio_map,
1062 					ARRAY_SIZE(common31xx_cm_audio_map));
1063 		if (!ret && !(aic31xx->codec_type & DAC31XX_BIT))
1064 			ret = snd_soc_dapm_add_routes(dapm,
1065 					aic31xx_cm_audio_map,
1066 					ARRAY_SIZE(aic31xx_cm_audio_map));
1067 
1068 		if (ret)
1069 			return ret;
1070 
1071 		aic31xx->master_dapm_route_applied = true;
1072 	}
1073 
1074 	return 0;
1075 }
1076 
aic31xx_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)1077 static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
1078 			       unsigned int fmt)
1079 {
1080 	struct snd_soc_component *component = codec_dai->component;
1081 	u8 iface_reg1 = 0;
1082 	u8 iface_reg2 = 0;
1083 	u8 dsp_a_val = 0;
1084 
1085 	dev_dbg(component->dev, "## %s: fmt = 0x%x\n", __func__, fmt);
1086 
1087 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
1088 	case SND_SOC_DAIFMT_CBP_CFP:
1089 		iface_reg1 |= AIC31XX_BCLK_MASTER | AIC31XX_WCLK_MASTER;
1090 		break;
1091 	case SND_SOC_DAIFMT_CBC_CFP:
1092 		iface_reg1 |= AIC31XX_WCLK_MASTER;
1093 		break;
1094 	case SND_SOC_DAIFMT_CBP_CFC:
1095 		iface_reg1 |= AIC31XX_BCLK_MASTER;
1096 		break;
1097 	case SND_SOC_DAIFMT_CBC_CFC:
1098 		break;
1099 	default:
1100 		dev_err(component->dev, "Invalid DAI clock provider\n");
1101 		return -EINVAL;
1102 	}
1103 
1104 	/* signal polarity */
1105 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1106 	case SND_SOC_DAIFMT_NB_NF:
1107 		break;
1108 	case SND_SOC_DAIFMT_IB_NF:
1109 		iface_reg2 |= AIC31XX_BCLKINV_MASK;
1110 		break;
1111 	default:
1112 		dev_err(component->dev, "Invalid DAI clock signal polarity\n");
1113 		return -EINVAL;
1114 	}
1115 
1116 	/* interface format */
1117 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1118 	case SND_SOC_DAIFMT_I2S:
1119 		break;
1120 	case SND_SOC_DAIFMT_DSP_A:
1121 		dsp_a_val = 0x1;
1122 		fallthrough;
1123 	case SND_SOC_DAIFMT_DSP_B:
1124 		/*
1125 		 * NOTE: This CODEC samples on the falling edge of BCLK in
1126 		 * DSP mode, this is inverted compared to what most DAIs
1127 		 * expect, so we invert for this mode
1128 		 */
1129 		iface_reg2 ^= AIC31XX_BCLKINV_MASK;
1130 		iface_reg1 |= (AIC31XX_DSP_MODE <<
1131 			       AIC31XX_IFACE1_DATATYPE_SHIFT);
1132 		break;
1133 	case SND_SOC_DAIFMT_RIGHT_J:
1134 		iface_reg1 |= (AIC31XX_RIGHT_JUSTIFIED_MODE <<
1135 			       AIC31XX_IFACE1_DATATYPE_SHIFT);
1136 		break;
1137 	case SND_SOC_DAIFMT_LEFT_J:
1138 		iface_reg1 |= (AIC31XX_LEFT_JUSTIFIED_MODE <<
1139 			       AIC31XX_IFACE1_DATATYPE_SHIFT);
1140 		break;
1141 	default:
1142 		dev_err(component->dev, "Invalid DAI interface format\n");
1143 		return -EINVAL;
1144 	}
1145 
1146 	snd_soc_component_update_bits(component, AIC31XX_IFACE1,
1147 			    AIC31XX_IFACE1_DATATYPE_MASK |
1148 			    AIC31XX_IFACE1_MASTER_MASK,
1149 			    iface_reg1);
1150 	snd_soc_component_update_bits(component, AIC31XX_DATA_OFFSET,
1151 			    AIC31XX_DATA_OFFSET_MASK,
1152 			    dsp_a_val);
1153 	snd_soc_component_update_bits(component, AIC31XX_IFACE2,
1154 			    AIC31XX_BCLKINV_MASK,
1155 			    iface_reg2);
1156 
1157 	return aic31xx_clock_master_routes(component, fmt);
1158 }
1159 
aic31xx_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)1160 static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1161 				  int clk_id, unsigned int freq, int dir)
1162 {
1163 	struct snd_soc_component *component = codec_dai->component;
1164 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1165 	int i;
1166 
1167 	dev_dbg(component->dev, "## %s: clk_id = %d, freq = %d, dir = %d\n",
1168 		__func__, clk_id, freq, dir);
1169 
1170 	for (i = 1; i < 8; i++)
1171 		if (freq / i <= 20000000)
1172 			break;
1173 	if (freq/i > 20000000) {
1174 		dev_err(aic31xx->dev, "%s: Too high mclk frequency %u\n",
1175 			__func__, freq);
1176 		return -EINVAL;
1177 	}
1178 	aic31xx->p_div = i;
1179 
1180 	for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++)
1181 		if (aic31xx_divs[i].mclk_p == freq / aic31xx->p_div)
1182 			break;
1183 	if (i == ARRAY_SIZE(aic31xx_divs)) {
1184 		dev_err(aic31xx->dev, "%s: Unsupported frequency %d\n",
1185 			__func__, freq);
1186 		return -EINVAL;
1187 	}
1188 
1189 	/* set clock on MCLK, BCLK, or GPIO1 as PLL input */
1190 	snd_soc_component_update_bits(component, AIC31XX_CLKMUX, AIC31XX_PLL_CLKIN_MASK,
1191 			    clk_id << AIC31XX_PLL_CLKIN_SHIFT);
1192 
1193 	aic31xx->sysclk_id = clk_id;
1194 	aic31xx->sysclk = freq;
1195 
1196 	return 0;
1197 }
1198 
aic31xx_regulator_event(struct notifier_block * nb,unsigned long event,void * data)1199 static int aic31xx_regulator_event(struct notifier_block *nb,
1200 				   unsigned long event, void *data)
1201 {
1202 	struct aic31xx_disable_nb *disable_nb =
1203 		container_of(nb, struct aic31xx_disable_nb, nb);
1204 	struct aic31xx_priv *aic31xx = disable_nb->aic31xx;
1205 
1206 	if (event & REGULATOR_EVENT_DISABLE) {
1207 		/*
1208 		 * Put codec to reset and as at least one of the
1209 		 * supplies was disabled.
1210 		 */
1211 		if (aic31xx->gpio_reset)
1212 			gpiod_set_value_cansleep(aic31xx->gpio_reset, 1);
1213 
1214 		regcache_mark_dirty(aic31xx->regmap);
1215 		dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
1216 	}
1217 
1218 	return 0;
1219 }
1220 
aic31xx_reset(struct aic31xx_priv * aic31xx)1221 static int aic31xx_reset(struct aic31xx_priv *aic31xx)
1222 {
1223 	int ret = 0;
1224 
1225 	if (aic31xx->gpio_reset) {
1226 		gpiod_set_value_cansleep(aic31xx->gpio_reset, 1);
1227 		ndelay(10); /* At least 10ns */
1228 		gpiod_set_value_cansleep(aic31xx->gpio_reset, 0);
1229 	} else {
1230 		ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
1231 	}
1232 	mdelay(1); /* At least 1ms */
1233 
1234 	return ret;
1235 }
1236 
aic31xx_clk_on(struct snd_soc_component * component)1237 static void aic31xx_clk_on(struct snd_soc_component *component)
1238 {
1239 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1240 	u8 mask = AIC31XX_PM_MASK;
1241 	u8 on = AIC31XX_PM_MASK;
1242 
1243 	dev_dbg(component->dev, "codec clock -> on (rate %d)\n",
1244 		aic31xx_divs[aic31xx->rate_div_line].rate);
1245 	snd_soc_component_update_bits(component, AIC31XX_PLLPR, mask, on);
1246 	mdelay(10);
1247 	snd_soc_component_update_bits(component, AIC31XX_NDAC, mask, on);
1248 	snd_soc_component_update_bits(component, AIC31XX_MDAC, mask, on);
1249 	if (aic31xx_divs[aic31xx->rate_div_line].nadc)
1250 		snd_soc_component_update_bits(component, AIC31XX_NADC, mask, on);
1251 	if (aic31xx_divs[aic31xx->rate_div_line].madc)
1252 		snd_soc_component_update_bits(component, AIC31XX_MADC, mask, on);
1253 	snd_soc_component_update_bits(component, AIC31XX_BCLKN, mask, on);
1254 }
1255 
aic31xx_clk_off(struct snd_soc_component * component)1256 static void aic31xx_clk_off(struct snd_soc_component *component)
1257 {
1258 	u8 mask = AIC31XX_PM_MASK;
1259 	u8 off = 0;
1260 
1261 	dev_dbg(component->dev, "codec clock -> off\n");
1262 	snd_soc_component_update_bits(component, AIC31XX_BCLKN, mask, off);
1263 	snd_soc_component_update_bits(component, AIC31XX_MADC, mask, off);
1264 	snd_soc_component_update_bits(component, AIC31XX_NADC, mask, off);
1265 	snd_soc_component_update_bits(component, AIC31XX_MDAC, mask, off);
1266 	snd_soc_component_update_bits(component, AIC31XX_NDAC, mask, off);
1267 	snd_soc_component_update_bits(component, AIC31XX_PLLPR, mask, off);
1268 }
1269 
aic31xx_power_on(struct snd_soc_component * component)1270 static int aic31xx_power_on(struct snd_soc_component *component)
1271 {
1272 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1273 	int ret;
1274 
1275 	ret = regulator_bulk_enable(ARRAY_SIZE(aic31xx->supplies),
1276 				    aic31xx->supplies);
1277 	if (ret)
1278 		return ret;
1279 
1280 	regcache_cache_only(aic31xx->regmap, false);
1281 
1282 	/* Reset device registers for a consistent power-on like state */
1283 	ret = aic31xx_reset(aic31xx);
1284 	if (ret < 0)
1285 		dev_err(aic31xx->dev, "Could not reset device: %d\n", ret);
1286 
1287 	ret = regcache_sync(aic31xx->regmap);
1288 	if (ret) {
1289 		dev_err(component->dev,
1290 			"Failed to restore cache: %d\n", ret);
1291 		regcache_cache_only(aic31xx->regmap, true);
1292 		regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
1293 				       aic31xx->supplies);
1294 		return ret;
1295 	}
1296 
1297 	/*
1298 	 * The jack detection configuration is in the same register
1299 	 * that is used to report jack detect status so is volatile
1300 	 * and not covered by the cache sync, restore it separately.
1301 	 */
1302 	aic31xx_set_jack(component, aic31xx->jack, NULL);
1303 
1304 	return 0;
1305 }
1306 
aic31xx_power_off(struct snd_soc_component * component)1307 static void aic31xx_power_off(struct snd_soc_component *component)
1308 {
1309 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1310 
1311 	regcache_cache_only(aic31xx->regmap, true);
1312 	regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
1313 			       aic31xx->supplies);
1314 }
1315 
aic31xx_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)1316 static int aic31xx_set_bias_level(struct snd_soc_component *component,
1317 				  enum snd_soc_bias_level level)
1318 {
1319 	dev_dbg(component->dev, "## %s: %d -> %d\n", __func__,
1320 		snd_soc_component_get_bias_level(component), level);
1321 
1322 	switch (level) {
1323 	case SND_SOC_BIAS_ON:
1324 		break;
1325 	case SND_SOC_BIAS_PREPARE:
1326 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY)
1327 			aic31xx_clk_on(component);
1328 		break;
1329 	case SND_SOC_BIAS_STANDBY:
1330 		switch (snd_soc_component_get_bias_level(component)) {
1331 		case SND_SOC_BIAS_OFF:
1332 			aic31xx_power_on(component);
1333 			break;
1334 		case SND_SOC_BIAS_PREPARE:
1335 			aic31xx_clk_off(component);
1336 			break;
1337 		default:
1338 			BUG();
1339 		}
1340 		break;
1341 	case SND_SOC_BIAS_OFF:
1342 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY)
1343 			aic31xx_power_off(component);
1344 		break;
1345 	}
1346 
1347 	return 0;
1348 }
1349 
aic31xx_set_jack(struct snd_soc_component * component,struct snd_soc_jack * jack,void * data)1350 static int aic31xx_set_jack(struct snd_soc_component *component,
1351 			    struct snd_soc_jack *jack, void *data)
1352 {
1353 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1354 
1355 	aic31xx->jack = jack;
1356 
1357 	/* Enable/Disable jack detection */
1358 	regmap_write(aic31xx->regmap, AIC31XX_HSDETECT,
1359 		     jack ? AIC31XX_HSD_ENABLE : 0);
1360 
1361 	return 0;
1362 }
1363 
aic31xx_codec_probe(struct snd_soc_component * component)1364 static int aic31xx_codec_probe(struct snd_soc_component *component)
1365 {
1366 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
1367 	int i, ret;
1368 
1369 	dev_dbg(aic31xx->dev, "## %s\n", __func__);
1370 
1371 	aic31xx->component = component;
1372 
1373 	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) {
1374 		aic31xx->disable_nb[i].nb.notifier_call =
1375 			aic31xx_regulator_event;
1376 		aic31xx->disable_nb[i].aic31xx = aic31xx;
1377 		ret = devm_regulator_register_notifier(
1378 						aic31xx->supplies[i].consumer,
1379 						&aic31xx->disable_nb[i].nb);
1380 		if (ret) {
1381 			dev_err(component->dev,
1382 				"Failed to request regulator notifier: %d\n",
1383 				ret);
1384 			return ret;
1385 		}
1386 	}
1387 
1388 	regcache_cache_only(aic31xx->regmap, true);
1389 	regcache_mark_dirty(aic31xx->regmap);
1390 
1391 	ret = aic31xx_add_controls(component);
1392 	if (ret)
1393 		return ret;
1394 
1395 	ret = aic31xx_add_widgets(component);
1396 	if (ret)
1397 		return ret;
1398 
1399 	/* set output common-mode voltage */
1400 	snd_soc_component_update_bits(component, AIC31XX_HPDRIVER,
1401 				      AIC31XX_HPD_OCMV_MASK,
1402 				      aic31xx->ocmv << AIC31XX_HPD_OCMV_SHIFT);
1403 
1404 	return 0;
1405 }
1406 
1407 static const struct snd_soc_component_driver soc_codec_driver_aic31xx = {
1408 	.probe			= aic31xx_codec_probe,
1409 	.set_jack		= aic31xx_set_jack,
1410 	.set_bias_level		= aic31xx_set_bias_level,
1411 	.controls		= common31xx_snd_controls,
1412 	.num_controls		= ARRAY_SIZE(common31xx_snd_controls),
1413 	.dapm_widgets		= common31xx_dapm_widgets,
1414 	.num_dapm_widgets	= ARRAY_SIZE(common31xx_dapm_widgets),
1415 	.dapm_routes		= common31xx_audio_map,
1416 	.num_dapm_routes	= ARRAY_SIZE(common31xx_audio_map),
1417 	.suspend_bias_off	= 1,
1418 	.idle_bias_on		= 1,
1419 	.use_pmdown_time	= 1,
1420 	.endianness		= 1,
1421 };
1422 
1423 static const struct snd_soc_dai_ops aic31xx_dai_ops = {
1424 	.hw_params	= aic31xx_hw_params,
1425 	.set_sysclk	= aic31xx_set_dai_sysclk,
1426 	.set_fmt	= aic31xx_set_dai_fmt,
1427 	.mute_stream	= aic31xx_dac_mute,
1428 	.no_capture_mute = 1,
1429 };
1430 
1431 static struct snd_soc_dai_driver dac31xx_dai_driver[] = {
1432 	{
1433 		.name = "tlv320dac31xx-hifi",
1434 		.playback = {
1435 			.stream_name	 = "Playback",
1436 			.channels_min	 = 2,
1437 			.channels_max	 = 2,
1438 			.rates		 = AIC31XX_RATES,
1439 			.formats	 = AIC31XX_FORMATS,
1440 		},
1441 		.ops = &aic31xx_dai_ops,
1442 		.symmetric_rate = 1,
1443 	}
1444 };
1445 
1446 static struct snd_soc_dai_driver aic31xx_dai_driver[] = {
1447 	{
1448 		.name = "tlv320aic31xx-hifi",
1449 		.playback = {
1450 			.stream_name	 = "Playback",
1451 			.channels_min	 = 2,
1452 			.channels_max	 = 2,
1453 			.rates		 = AIC31XX_RATES,
1454 			.formats	 = AIC31XX_FORMATS,
1455 		},
1456 		.capture = {
1457 			.stream_name	 = "Capture",
1458 			.channels_min	 = 2,
1459 			.channels_max	 = 2,
1460 			.rates		 = AIC31XX_RATES,
1461 			.formats	 = AIC31XX_FORMATS,
1462 		},
1463 		.ops = &aic31xx_dai_ops,
1464 		.symmetric_rate = 1,
1465 	}
1466 };
1467 
1468 #if defined(CONFIG_OF)
1469 static const struct of_device_id tlv320aic31xx_of_match[] = {
1470 	{ .compatible = "ti,tlv320aic310x" },
1471 	{ .compatible = "ti,tlv320aic311x" },
1472 	{ .compatible = "ti,tlv320aic3100" },
1473 	{ .compatible = "ti,tlv320aic3110" },
1474 	{ .compatible = "ti,tlv320aic3120" },
1475 	{ .compatible = "ti,tlv320aic3111" },
1476 	{ .compatible = "ti,tlv320dac3100" },
1477 	{ .compatible = "ti,tlv320dac3101" },
1478 	{},
1479 };
1480 MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match);
1481 #endif /* CONFIG_OF */
1482 
1483 #ifdef CONFIG_ACPI
1484 static const struct acpi_device_id aic31xx_acpi_match[] = {
1485 	{ "10TI3100", 0 },
1486 	{ }
1487 };
1488 MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
1489 #endif
1490 
aic31xx_irq(int irq,void * data)1491 static irqreturn_t aic31xx_irq(int irq, void *data)
1492 {
1493 	struct aic31xx_priv *aic31xx = data;
1494 	struct device *dev = aic31xx->dev;
1495 	unsigned int value;
1496 	bool handled = false;
1497 	int ret;
1498 
1499 	ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value);
1500 	if (ret) {
1501 		dev_err(dev, "Failed to read interrupt mask: %d\n", ret);
1502 		goto exit;
1503 	}
1504 
1505 	if (value)
1506 		handled = true;
1507 	else
1508 		goto read_overflow;
1509 
1510 	if (value & AIC31XX_HPLSCDETECT)
1511 		dev_err(dev, "Short circuit on Left output is detected\n");
1512 	if (value & AIC31XX_HPRSCDETECT)
1513 		dev_err(dev, "Short circuit on Right output is detected\n");
1514 	if (value & (AIC31XX_HSPLUG | AIC31XX_BUTTONPRESS)) {
1515 		unsigned int val;
1516 		int status = 0;
1517 
1518 		ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG2,
1519 				  &val);
1520 		if (ret) {
1521 			dev_err(dev, "Failed to read interrupt mask: %d\n",
1522 				ret);
1523 			goto exit;
1524 		}
1525 
1526 		if (val & AIC31XX_BUTTONPRESS)
1527 			status |= SND_JACK_BTN_0;
1528 
1529 		ret = regmap_read(aic31xx->regmap, AIC31XX_HSDETECT, &val);
1530 		if (ret) {
1531 			dev_err(dev, "Failed to read headset type: %d\n", ret);
1532 			goto exit;
1533 		}
1534 
1535 		switch ((val & AIC31XX_HSD_TYPE_MASK) >>
1536 			AIC31XX_HSD_TYPE_SHIFT) {
1537 		case AIC31XX_HSD_HP:
1538 			status |= SND_JACK_HEADPHONE;
1539 			break;
1540 		case AIC31XX_HSD_HS:
1541 			status |= SND_JACK_HEADSET;
1542 			break;
1543 		default:
1544 			break;
1545 		}
1546 
1547 		if (aic31xx->jack)
1548 			snd_soc_jack_report(aic31xx->jack, status,
1549 					    AIC31XX_JACK_MASK);
1550 	}
1551 	if (value & ~(AIC31XX_HPLSCDETECT |
1552 		      AIC31XX_HPRSCDETECT |
1553 		      AIC31XX_HSPLUG |
1554 		      AIC31XX_BUTTONPRESS))
1555 		dev_err(dev, "Unknown DAC interrupt flags: 0x%08x\n", value);
1556 
1557 read_overflow:
1558 	ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value);
1559 	if (ret) {
1560 		dev_err(dev, "Failed to read overflow flag: %d\n", ret);
1561 		goto exit;
1562 	}
1563 
1564 	if (value)
1565 		handled = true;
1566 	else
1567 		goto exit;
1568 
1569 	if (value & AIC31XX_DAC_OF_LEFT)
1570 		dev_warn(dev, "Left-channel DAC overflow has occurred\n");
1571 	if (value & AIC31XX_DAC_OF_RIGHT)
1572 		dev_warn(dev, "Right-channel DAC overflow has occurred\n");
1573 	if (value & AIC31XX_DAC_OF_SHIFTER)
1574 		dev_warn(dev, "DAC barrel shifter overflow has occurred\n");
1575 	if (value & AIC31XX_ADC_OF)
1576 		dev_warn(dev, "ADC overflow has occurred\n");
1577 	if (value & AIC31XX_ADC_OF_SHIFTER)
1578 		dev_warn(dev, "ADC barrel shifter overflow has occurred\n");
1579 	if (value & ~(AIC31XX_DAC_OF_LEFT |
1580 		      AIC31XX_DAC_OF_RIGHT |
1581 		      AIC31XX_DAC_OF_SHIFTER |
1582 		      AIC31XX_ADC_OF |
1583 		      AIC31XX_ADC_OF_SHIFTER))
1584 		dev_warn(dev, "Unknown overflow interrupt flags: 0x%08x\n", value);
1585 
1586 exit:
1587 	if (handled)
1588 		return IRQ_HANDLED;
1589 	else
1590 		return IRQ_NONE;
1591 }
1592 
aic31xx_configure_ocmv(struct aic31xx_priv * priv)1593 static void aic31xx_configure_ocmv(struct aic31xx_priv *priv)
1594 {
1595 	struct device *dev = priv->dev;
1596 	int dvdd, avdd;
1597 	u32 value;
1598 
1599 	if (dev->fwnode &&
1600 	    fwnode_property_read_u32(dev->fwnode, "ai31xx-ocmv", &value)) {
1601 		/* OCMV setting is forced by DT */
1602 		if (value <= 3) {
1603 			priv->ocmv = value;
1604 			return;
1605 		}
1606 	}
1607 
1608 	avdd = regulator_get_voltage(priv->supplies[3].consumer);
1609 	dvdd = regulator_get_voltage(priv->supplies[5].consumer);
1610 
1611 	if (avdd > 3600000 || dvdd > 1950000) {
1612 		dev_warn(dev,
1613 			 "Too high supply voltage(s) AVDD: %d, DVDD: %d\n",
1614 			 avdd, dvdd);
1615 	} else if (avdd == 3600000 && dvdd == 1950000) {
1616 		priv->ocmv = AIC31XX_HPD_OCMV_1_8V;
1617 	} else if (avdd >= 3300000 && dvdd >= 1800000) {
1618 		priv->ocmv = AIC31XX_HPD_OCMV_1_65V;
1619 	} else if (avdd >= 3000000 && dvdd >= 1650000) {
1620 		priv->ocmv = AIC31XX_HPD_OCMV_1_5V;
1621 	} else if (avdd >= 2700000 && dvdd >= 1525000) {
1622 		priv->ocmv = AIC31XX_HPD_OCMV_1_35V;
1623 	} else {
1624 		dev_warn(dev,
1625 			 "Invalid supply voltage(s) AVDD: %d, DVDD: %d\n",
1626 			 avdd, dvdd);
1627 	}
1628 }
1629 
1630 static const struct i2c_device_id aic31xx_i2c_id[] = {
1631 	{ "tlv320aic310x", AIC3100 },
1632 	{ "tlv320aic311x", AIC3110 },
1633 	{ "tlv320aic3100", AIC3100 },
1634 	{ "tlv320aic3110", AIC3110 },
1635 	{ "tlv320aic3120", AIC3120 },
1636 	{ "tlv320aic3111", AIC3111 },
1637 	{ "tlv320dac3100", DAC3100 },
1638 	{ "tlv320dac3101", DAC3101 },
1639 	{ }
1640 };
1641 MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id);
1642 
tlv320dac3100_fw_load(struct aic31xx_priv * aic31xx,const u8 * data,size_t size)1643 static int tlv320dac3100_fw_load(struct aic31xx_priv *aic31xx,
1644 				 const u8 *data, size_t size)
1645 {
1646 	int ret, reg;
1647 	u16 val16;
1648 
1649 	/*
1650 	 * Coefficients firmware binary structure. Multi-byte values are big-endian.
1651 	 *
1652 	 * @0, 16bits: Magic (0xB30C)
1653 	 * @2, 16bits: Version (0x0100 for version 1.0)
1654 	 * @4, 8bits: DAC Processing Block Selection
1655 	 * @5, 62 16-bit values: Page 8 buffer A DAC programmable filter coefficients
1656 	 * @129, 12 16-bit values: Page 9 Buffer A DAC programmable filter coefficients
1657 	 *
1658 	 * Filter coefficients are interpreted as two's complement values
1659 	 * ranging from -32 768 to 32 767. For more details on filter coefficients,
1660 	 * please refer to the TLV320DAC3100 datasheet, tables 6-120 and 6-123.
1661 	 */
1662 
1663 	if (size != 153) {
1664 		dev_err(aic31xx->dev, "firmware size is %zu, expected 153 bytes\n", size);
1665 		return -EINVAL;
1666 	}
1667 
1668 	/* Check magic */
1669 	val16 = get_unaligned_be16(data);
1670 	if (val16 != 0xb30c) {
1671 		dev_err(aic31xx->dev, "fw magic is 0x%04x expected 0xb30c\n", val16);
1672 		return -EINVAL;
1673 	}
1674 	data += 2;
1675 
1676 	/* Check version */
1677 	val16 = get_unaligned_be16(data);
1678 	if (val16 != 0x0100) {
1679 		dev_err(aic31xx->dev, "invalid firmware version 0x%04x! expected 1", val16);
1680 		return -EINVAL;
1681 	}
1682 	data += 2;
1683 
1684 	ret = regmap_write(aic31xx->regmap, AIC31XX_DACPRB, *data);
1685 	if (ret) {
1686 		dev_err(aic31xx->dev, "failed to write PRB index: err %d\n", ret);
1687 		return ret;
1688 	}
1689 	data += 1;
1690 
1691 	/* Page 8 Buffer A coefficients */
1692 	for (reg = 2; reg < 126; reg++) {
1693 		ret = regmap_write(aic31xx->regmap, AIC31XX_REG(8, reg), *data);
1694 		if (ret) {
1695 			dev_err(aic31xx->dev,
1696 				"failed to write page 8 filter coefficient %d: err %d\n", reg, ret);
1697 			return ret;
1698 		}
1699 		data++;
1700 	}
1701 
1702 	/* Page 9 Buffer A coefficients */
1703 	for (reg = 2; reg < 26; reg++) {
1704 		ret = regmap_write(aic31xx->regmap, AIC31XX_REG(9, reg), *data);
1705 		if (ret) {
1706 			dev_err(aic31xx->dev,
1707 				"failed to write page 9 filter coefficient %d: err %d\n", reg, ret);
1708 			return ret;
1709 		}
1710 		data++;
1711 	}
1712 
1713 	dev_info(aic31xx->dev, "done loading DAC filter coefficients\n");
1714 
1715 	return ret;
1716 }
1717 
tlv320dac3100_load_coeffs(struct aic31xx_priv * aic31xx,const char * fw_name)1718 static int tlv320dac3100_load_coeffs(struct aic31xx_priv *aic31xx,
1719 				     const char *fw_name)
1720 {
1721 	const struct firmware *fw;
1722 	int ret;
1723 
1724 	ret = request_firmware(&fw, fw_name, aic31xx->dev);
1725 	if (ret)
1726 		return ret;
1727 
1728 	ret = tlv320dac3100_fw_load(aic31xx, fw->data, fw->size);
1729 
1730 	release_firmware(fw);
1731 
1732 	return ret;
1733 }
1734 
aic31xx_i2c_probe(struct i2c_client * i2c)1735 static int aic31xx_i2c_probe(struct i2c_client *i2c)
1736 {
1737 	struct aic31xx_priv *aic31xx;
1738 	unsigned int micbias_value = MICBIAS_2_0V;
1739 	const struct i2c_device_id *id = i2c_match_id(aic31xx_i2c_id, i2c);
1740 	int i, ret;
1741 
1742 	dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
1743 		id->name, (int)id->driver_data);
1744 
1745 	aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
1746 	if (!aic31xx)
1747 		return -ENOMEM;
1748 
1749 	aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap);
1750 	if (IS_ERR(aic31xx->regmap)) {
1751 		ret = PTR_ERR(aic31xx->regmap);
1752 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1753 			ret);
1754 		return ret;
1755 	}
1756 	regcache_cache_only(aic31xx->regmap, true);
1757 
1758 	aic31xx->dev = &i2c->dev;
1759 	aic31xx->irq = i2c->irq;
1760 
1761 	aic31xx->codec_type = id->driver_data;
1762 
1763 	dev_set_drvdata(aic31xx->dev, aic31xx);
1764 
1765 	fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg",
1766 				 &micbias_value);
1767 	switch (micbias_value) {
1768 	case MICBIAS_2_0V:
1769 	case MICBIAS_2_5V:
1770 	case MICBIAS_AVDDV:
1771 		aic31xx->micbias_vg = micbias_value;
1772 		break;
1773 	default:
1774 		dev_err(aic31xx->dev, "Bad ai31xx-micbias-vg value %d\n",
1775 			micbias_value);
1776 		aic31xx->micbias_vg = MICBIAS_2_0V;
1777 	}
1778 
1779 	if (dev_get_platdata(aic31xx->dev)) {
1780 		memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev), sizeof(aic31xx->pdata));
1781 		aic31xx->codec_type = aic31xx->pdata.codec_type;
1782 		aic31xx->micbias_vg = aic31xx->pdata.micbias_vg;
1783 	}
1784 
1785 	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
1786 						      GPIOD_OUT_LOW);
1787 	if (IS_ERR(aic31xx->gpio_reset))
1788 		return dev_err_probe(aic31xx->dev, PTR_ERR(aic31xx->gpio_reset),
1789 				     "not able to acquire gpio\n");
1790 
1791 	for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
1792 		aic31xx->supplies[i].supply = aic31xx_supply_names[i];
1793 
1794 	ret = devm_regulator_bulk_get(aic31xx->dev,
1795 				      ARRAY_SIZE(aic31xx->supplies),
1796 				      aic31xx->supplies);
1797 	if (ret)
1798 		return dev_err_probe(aic31xx->dev, ret, "Failed to request supplies\n");
1799 
1800 	aic31xx_configure_ocmv(aic31xx);
1801 
1802 	if (aic31xx->irq > 0) {
1803 		regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1,
1804 				   AIC31XX_GPIO1_FUNC_MASK,
1805 				   AIC31XX_GPIO1_INT1 <<
1806 				   AIC31XX_GPIO1_FUNC_SHIFT);
1807 
1808 		regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL,
1809 			     AIC31XX_HSPLUGDET |
1810 			     AIC31XX_BUTTONPRESSDET |
1811 			     AIC31XX_SC |
1812 			     AIC31XX_ENGINE);
1813 
1814 		ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq,
1815 						NULL, aic31xx_irq,
1816 						IRQF_ONESHOT, "aic31xx-irq",
1817 						aic31xx);
1818 		if (ret) {
1819 			dev_err(aic31xx->dev, "Unable to request IRQ\n");
1820 			return ret;
1821 		}
1822 	}
1823 
1824 	if (aic31xx->codec_type == DAC3100) {
1825 		ret = tlv320dac3100_load_coeffs(aic31xx, "tlv320dac3100-coeffs.bin");
1826 		if (ret)
1827 			dev_warn(aic31xx->dev, "Did not load any filter coefficients\n");
1828 	}
1829 
1830 	if (aic31xx->codec_type & DAC31XX_BIT)
1831 		return devm_snd_soc_register_component(&i2c->dev,
1832 				&soc_codec_driver_aic31xx,
1833 				dac31xx_dai_driver,
1834 				ARRAY_SIZE(dac31xx_dai_driver));
1835 	else
1836 		return devm_snd_soc_register_component(&i2c->dev,
1837 				&soc_codec_driver_aic31xx,
1838 				aic31xx_dai_driver,
1839 				ARRAY_SIZE(aic31xx_dai_driver));
1840 }
1841 
1842 static struct i2c_driver aic31xx_i2c_driver = {
1843 	.driver = {
1844 		.name	= "tlv320aic31xx-codec",
1845 		.of_match_table = of_match_ptr(tlv320aic31xx_of_match),
1846 		.acpi_match_table = ACPI_PTR(aic31xx_acpi_match),
1847 	},
1848 	.probe		= aic31xx_i2c_probe,
1849 	.id_table	= aic31xx_i2c_id,
1850 };
1851 module_i2c_driver(aic31xx_i2c_driver);
1852 
1853 MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
1854 MODULE_DESCRIPTION("ASoC TLV320AIC31xx CODEC Driver");
1855 MODULE_LICENSE("GPL v2");
1856