Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 2 | /* |
| 3 | * wm8978.c -- WM8978 ALSA SoC Audio Codec driver |
| 4 | * |
| 5 | * Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de> |
| 6 | * Copyright (C) 2007 Carlos Munoz <carlos@kenati.com> |
| 7 | * Copyright 2006-2009 Wolfson Microelectronics PLC. |
| 8 | * Based on wm8974 and wm8990 by Liam Girdwood <lrg@slimlogic.co.uk> |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/moduleparam.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/pm.h> |
| 17 | #include <linux/i2c.h> |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 18 | #include <linux/regmap.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 19 | #include <linux/slab.h> |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 20 | #include <sound/core.h> |
| 21 | #include <sound/pcm.h> |
| 22 | #include <sound/pcm_params.h> |
| 23 | #include <sound/soc.h> |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 24 | #include <sound/initval.h> |
| 25 | #include <sound/tlv.h> |
| 26 | #include <asm/div64.h> |
| 27 | |
| 28 | #include "wm8978.h" |
| 29 | |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 30 | static const struct reg_default wm8978_reg_defaults[] = { |
| 31 | { 1, 0x0000 }, |
| 32 | { 2, 0x0000 }, |
| 33 | { 3, 0x0000 }, |
| 34 | { 4, 0x0050 }, |
| 35 | { 5, 0x0000 }, |
| 36 | { 6, 0x0140 }, |
| 37 | { 7, 0x0000 }, |
| 38 | { 8, 0x0000 }, |
| 39 | { 9, 0x0000 }, |
| 40 | { 10, 0x0000 }, |
| 41 | { 11, 0x00ff }, |
| 42 | { 12, 0x00ff }, |
| 43 | { 13, 0x0000 }, |
| 44 | { 14, 0x0100 }, |
| 45 | { 15, 0x00ff }, |
| 46 | { 16, 0x00ff }, |
| 47 | { 17, 0x0000 }, |
| 48 | { 18, 0x012c }, |
| 49 | { 19, 0x002c }, |
| 50 | { 20, 0x002c }, |
| 51 | { 21, 0x002c }, |
| 52 | { 22, 0x002c }, |
| 53 | { 23, 0x0000 }, |
| 54 | { 24, 0x0032 }, |
| 55 | { 25, 0x0000 }, |
| 56 | { 26, 0x0000 }, |
| 57 | { 27, 0x0000 }, |
| 58 | { 28, 0x0000 }, |
| 59 | { 29, 0x0000 }, |
| 60 | { 30, 0x0000 }, |
| 61 | { 31, 0x0000 }, |
| 62 | { 32, 0x0038 }, |
| 63 | { 33, 0x000b }, |
| 64 | { 34, 0x0032 }, |
| 65 | { 35, 0x0000 }, |
| 66 | { 36, 0x0008 }, |
| 67 | { 37, 0x000c }, |
| 68 | { 38, 0x0093 }, |
| 69 | { 39, 0x00e9 }, |
| 70 | { 40, 0x0000 }, |
| 71 | { 41, 0x0000 }, |
| 72 | { 42, 0x0000 }, |
| 73 | { 43, 0x0000 }, |
| 74 | { 44, 0x0033 }, |
| 75 | { 45, 0x0010 }, |
| 76 | { 46, 0x0010 }, |
| 77 | { 47, 0x0100 }, |
| 78 | { 48, 0x0100 }, |
| 79 | { 49, 0x0002 }, |
| 80 | { 50, 0x0001 }, |
| 81 | { 51, 0x0001 }, |
| 82 | { 52, 0x0039 }, |
| 83 | { 53, 0x0039 }, |
| 84 | { 54, 0x0039 }, |
| 85 | { 55, 0x0039 }, |
| 86 | { 56, 0x0001 }, |
| 87 | { 57, 0x0001 }, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 88 | }; |
| 89 | |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 90 | static bool wm8978_volatile(struct device *dev, unsigned int reg) |
| 91 | { |
| 92 | return reg == WM8978_RESET; |
| 93 | } |
| 94 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 95 | /* codec private data */ |
| 96 | struct wm8978_priv { |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 97 | struct regmap *regmap; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 98 | unsigned int f_pllout; |
| 99 | unsigned int f_mclk; |
| 100 | unsigned int f_256fs; |
| 101 | unsigned int f_opclk; |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 102 | int mclk_idx; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 103 | enum wm8978_sysclk_src sysclk; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 104 | }; |
| 105 | |
| 106 | static const char *wm8978_companding[] = {"Off", "NC", "u-law", "A-law"}; |
| 107 | static const char *wm8978_eqmode[] = {"Capture", "Playback"}; |
| 108 | static const char *wm8978_bw[] = {"Narrow", "Wide"}; |
| 109 | static const char *wm8978_eq1[] = {"80Hz", "105Hz", "135Hz", "175Hz"}; |
| 110 | static const char *wm8978_eq2[] = {"230Hz", "300Hz", "385Hz", "500Hz"}; |
| 111 | static const char *wm8978_eq3[] = {"650Hz", "850Hz", "1.1kHz", "1.4kHz"}; |
| 112 | static const char *wm8978_eq4[] = {"1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"}; |
| 113 | static const char *wm8978_eq5[] = {"5.3kHz", "6.9kHz", "9kHz", "11.7kHz"}; |
| 114 | static const char *wm8978_alc3[] = {"ALC", "Limiter"}; |
| 115 | static const char *wm8978_alc1[] = {"Off", "Right", "Left", "Both"}; |
| 116 | |
Takashi Iwai | 11a544b | 2014-02-18 09:44:10 +0100 | [diff] [blame] | 117 | static SOC_ENUM_SINGLE_DECL(adc_compand, WM8978_COMPANDING_CONTROL, 1, |
| 118 | wm8978_companding); |
| 119 | static SOC_ENUM_SINGLE_DECL(dac_compand, WM8978_COMPANDING_CONTROL, 3, |
| 120 | wm8978_companding); |
| 121 | static SOC_ENUM_SINGLE_DECL(eqmode, WM8978_EQ1, 8, wm8978_eqmode); |
| 122 | static SOC_ENUM_SINGLE_DECL(eq1, WM8978_EQ1, 5, wm8978_eq1); |
| 123 | static SOC_ENUM_SINGLE_DECL(eq2bw, WM8978_EQ2, 8, wm8978_bw); |
| 124 | static SOC_ENUM_SINGLE_DECL(eq2, WM8978_EQ2, 5, wm8978_eq2); |
| 125 | static SOC_ENUM_SINGLE_DECL(eq3bw, WM8978_EQ3, 8, wm8978_bw); |
| 126 | static SOC_ENUM_SINGLE_DECL(eq3, WM8978_EQ3, 5, wm8978_eq3); |
| 127 | static SOC_ENUM_SINGLE_DECL(eq4bw, WM8978_EQ4, 8, wm8978_bw); |
| 128 | static SOC_ENUM_SINGLE_DECL(eq4, WM8978_EQ4, 5, wm8978_eq4); |
| 129 | static SOC_ENUM_SINGLE_DECL(eq5, WM8978_EQ5, 5, wm8978_eq5); |
| 130 | static SOC_ENUM_SINGLE_DECL(alc3, WM8978_ALC_CONTROL_3, 8, wm8978_alc3); |
| 131 | static SOC_ENUM_SINGLE_DECL(alc1, WM8978_ALC_CONTROL_1, 7, wm8978_alc1); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 132 | |
| 133 | static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); |
| 134 | static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); |
| 135 | static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); |
| 136 | static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); |
| 137 | static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1); |
Mark Brown | 1916a2a | 2011-03-02 11:04:10 +0000 | [diff] [blame] | 138 | static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 139 | |
| 140 | static const struct snd_kcontrol_new wm8978_snd_controls[] = { |
| 141 | |
| 142 | SOC_SINGLE("Digital Loopback Switch", |
| 143 | WM8978_COMPANDING_CONTROL, 0, 1, 0), |
| 144 | |
| 145 | SOC_ENUM("ADC Companding", adc_compand), |
| 146 | SOC_ENUM("DAC Companding", dac_compand), |
| 147 | |
| 148 | SOC_DOUBLE("DAC Inversion Switch", WM8978_DAC_CONTROL, 0, 1, 1, 0), |
| 149 | |
| 150 | SOC_DOUBLE_R_TLV("PCM Volume", |
| 151 | WM8978_LEFT_DAC_DIGITAL_VOLUME, WM8978_RIGHT_DAC_DIGITAL_VOLUME, |
| 152 | 0, 255, 0, digital_tlv), |
| 153 | |
| 154 | SOC_SINGLE("High Pass Filter Switch", WM8978_ADC_CONTROL, 8, 1, 0), |
| 155 | SOC_SINGLE("High Pass Cut Off", WM8978_ADC_CONTROL, 4, 7, 0), |
| 156 | SOC_DOUBLE("ADC Inversion Switch", WM8978_ADC_CONTROL, 0, 1, 1, 0), |
| 157 | |
| 158 | SOC_DOUBLE_R_TLV("ADC Volume", |
| 159 | WM8978_LEFT_ADC_DIGITAL_VOLUME, WM8978_RIGHT_ADC_DIGITAL_VOLUME, |
| 160 | 0, 255, 0, digital_tlv), |
| 161 | |
| 162 | SOC_ENUM("Equaliser Function", eqmode), |
| 163 | SOC_ENUM("EQ1 Cut Off", eq1), |
| 164 | SOC_SINGLE_TLV("EQ1 Volume", WM8978_EQ1, 0, 24, 1, eq_tlv), |
| 165 | |
Masanari Iida | c46d5c0 | 2012-11-02 23:25:30 +0900 | [diff] [blame] | 166 | SOC_ENUM("Equaliser EQ2 Bandwidth", eq2bw), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 167 | SOC_ENUM("EQ2 Cut Off", eq2), |
| 168 | SOC_SINGLE_TLV("EQ2 Volume", WM8978_EQ2, 0, 24, 1, eq_tlv), |
| 169 | |
Masanari Iida | c46d5c0 | 2012-11-02 23:25:30 +0900 | [diff] [blame] | 170 | SOC_ENUM("Equaliser EQ3 Bandwidth", eq3bw), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 171 | SOC_ENUM("EQ3 Cut Off", eq3), |
| 172 | SOC_SINGLE_TLV("EQ3 Volume", WM8978_EQ3, 0, 24, 1, eq_tlv), |
| 173 | |
Masanari Iida | c46d5c0 | 2012-11-02 23:25:30 +0900 | [diff] [blame] | 174 | SOC_ENUM("Equaliser EQ4 Bandwidth", eq4bw), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 175 | SOC_ENUM("EQ4 Cut Off", eq4), |
| 176 | SOC_SINGLE_TLV("EQ4 Volume", WM8978_EQ4, 0, 24, 1, eq_tlv), |
| 177 | |
| 178 | SOC_ENUM("EQ5 Cut Off", eq5), |
| 179 | SOC_SINGLE_TLV("EQ5 Volume", WM8978_EQ5, 0, 24, 1, eq_tlv), |
| 180 | |
| 181 | SOC_SINGLE("DAC Playback Limiter Switch", |
| 182 | WM8978_DAC_LIMITER_1, 8, 1, 0), |
| 183 | SOC_SINGLE("DAC Playback Limiter Decay", |
| 184 | WM8978_DAC_LIMITER_1, 4, 15, 0), |
| 185 | SOC_SINGLE("DAC Playback Limiter Attack", |
| 186 | WM8978_DAC_LIMITER_1, 0, 15, 0), |
| 187 | |
| 188 | SOC_SINGLE("DAC Playback Limiter Threshold", |
| 189 | WM8978_DAC_LIMITER_2, 4, 7, 0), |
Mark Brown | 1916a2a | 2011-03-02 11:04:10 +0000 | [diff] [blame] | 190 | SOC_SINGLE_TLV("DAC Playback Limiter Volume", |
| 191 | WM8978_DAC_LIMITER_2, 0, 12, 0, limiter_tlv), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 192 | |
| 193 | SOC_ENUM("ALC Enable Switch", alc1), |
| 194 | SOC_SINGLE("ALC Capture Min Gain", WM8978_ALC_CONTROL_1, 0, 7, 0), |
| 195 | SOC_SINGLE("ALC Capture Max Gain", WM8978_ALC_CONTROL_1, 3, 7, 0), |
| 196 | |
Mark Brown | c8fb034 | 2011-03-02 11:01:18 +0000 | [diff] [blame] | 197 | SOC_SINGLE("ALC Capture Hold", WM8978_ALC_CONTROL_2, 4, 10, 0), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 198 | SOC_SINGLE("ALC Capture Target", WM8978_ALC_CONTROL_2, 0, 15, 0), |
| 199 | |
| 200 | SOC_ENUM("ALC Capture Mode", alc3), |
Mark Brown | c8fb034 | 2011-03-02 11:01:18 +0000 | [diff] [blame] | 201 | SOC_SINGLE("ALC Capture Decay", WM8978_ALC_CONTROL_3, 4, 10, 0), |
| 202 | SOC_SINGLE("ALC Capture Attack", WM8978_ALC_CONTROL_3, 0, 10, 0), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 203 | |
| 204 | SOC_SINGLE("ALC Capture Noise Gate Switch", WM8978_NOISE_GATE, 3, 1, 0), |
| 205 | SOC_SINGLE("ALC Capture Noise Gate Threshold", |
| 206 | WM8978_NOISE_GATE, 0, 7, 0), |
| 207 | |
| 208 | SOC_DOUBLE_R("Capture PGA ZC Switch", |
| 209 | WM8978_LEFT_INP_PGA_CONTROL, WM8978_RIGHT_INP_PGA_CONTROL, |
| 210 | 7, 1, 0), |
| 211 | |
| 212 | /* OUT1 - Headphones */ |
| 213 | SOC_DOUBLE_R("Headphone Playback ZC Switch", |
| 214 | WM8978_LOUT1_HP_CONTROL, WM8978_ROUT1_HP_CONTROL, 7, 1, 0), |
| 215 | |
| 216 | SOC_DOUBLE_R_TLV("Headphone Playback Volume", |
| 217 | WM8978_LOUT1_HP_CONTROL, WM8978_ROUT1_HP_CONTROL, |
| 218 | 0, 63, 0, spk_tlv), |
| 219 | |
| 220 | /* OUT2 - Speakers */ |
| 221 | SOC_DOUBLE_R("Speaker Playback ZC Switch", |
| 222 | WM8978_LOUT2_SPK_CONTROL, WM8978_ROUT2_SPK_CONTROL, 7, 1, 0), |
| 223 | |
| 224 | SOC_DOUBLE_R_TLV("Speaker Playback Volume", |
| 225 | WM8978_LOUT2_SPK_CONTROL, WM8978_ROUT2_SPK_CONTROL, |
| 226 | 0, 63, 0, spk_tlv), |
| 227 | |
| 228 | /* OUT3/4 - Line Output */ |
| 229 | SOC_DOUBLE_R("Line Playback Switch", |
| 230 | WM8978_OUT3_MIXER_CONTROL, WM8978_OUT4_MIXER_CONTROL, 6, 1, 1), |
| 231 | |
| 232 | /* Mixer #3: Boost (Input) mixer */ |
| 233 | SOC_DOUBLE_R("PGA Boost (+20dB)", |
| 234 | WM8978_LEFT_ADC_BOOST_CONTROL, WM8978_RIGHT_ADC_BOOST_CONTROL, |
| 235 | 8, 1, 0), |
| 236 | SOC_DOUBLE_R_TLV("L2/R2 Boost Volume", |
| 237 | WM8978_LEFT_ADC_BOOST_CONTROL, WM8978_RIGHT_ADC_BOOST_CONTROL, |
| 238 | 4, 7, 0, boost_tlv), |
| 239 | SOC_DOUBLE_R_TLV("Aux Boost Volume", |
| 240 | WM8978_LEFT_ADC_BOOST_CONTROL, WM8978_RIGHT_ADC_BOOST_CONTROL, |
| 241 | 0, 7, 0, boost_tlv), |
| 242 | |
| 243 | /* Input PGA volume */ |
| 244 | SOC_DOUBLE_R_TLV("Input PGA Volume", |
| 245 | WM8978_LEFT_INP_PGA_CONTROL, WM8978_RIGHT_INP_PGA_CONTROL, |
| 246 | 0, 63, 0, inpga_tlv), |
| 247 | |
| 248 | /* Headphone */ |
| 249 | SOC_DOUBLE_R("Headphone Switch", |
| 250 | WM8978_LOUT1_HP_CONTROL, WM8978_ROUT1_HP_CONTROL, 6, 1, 1), |
| 251 | |
| 252 | /* Speaker */ |
| 253 | SOC_DOUBLE_R("Speaker Switch", |
| 254 | WM8978_LOUT2_SPK_CONTROL, WM8978_ROUT2_SPK_CONTROL, 6, 1, 1), |
Guennadi Liakhovetski | b2c3e92 | 2010-01-29 15:31:06 +0100 | [diff] [blame] | 255 | |
| 256 | /* DAC / ADC oversampling */ |
Mark Brown | c8fb034 | 2011-03-02 11:01:18 +0000 | [diff] [blame] | 257 | SOC_SINGLE("DAC 128x Oversampling Switch", WM8978_DAC_CONTROL, |
| 258 | 5, 1, 0), |
| 259 | SOC_SINGLE("ADC 128x Oversampling Switch", WM8978_ADC_CONTROL, |
| 260 | 5, 1, 0), |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 261 | }; |
| 262 | |
| 263 | /* Mixer #1: Output (OUT1, OUT2) Mixer: mix AUX, Input mixer output and DAC */ |
| 264 | static const struct snd_kcontrol_new wm8978_left_out_mixer[] = { |
| 265 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8978_LEFT_MIXER_CONTROL, 1, 1, 0), |
| 266 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8978_LEFT_MIXER_CONTROL, 5, 1, 0), |
| 267 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8978_LEFT_MIXER_CONTROL, 0, 1, 0), |
| 268 | }; |
| 269 | |
| 270 | static const struct snd_kcontrol_new wm8978_right_out_mixer[] = { |
| 271 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8978_RIGHT_MIXER_CONTROL, 1, 1, 0), |
| 272 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8978_RIGHT_MIXER_CONTROL, 5, 1, 0), |
| 273 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8978_RIGHT_MIXER_CONTROL, 0, 1, 0), |
| 274 | }; |
| 275 | |
| 276 | /* OUT3/OUT4 Mixer not implemented */ |
| 277 | |
| 278 | /* Mixer #2: Input PGA Mute */ |
| 279 | static const struct snd_kcontrol_new wm8978_left_input_mixer[] = { |
| 280 | SOC_DAPM_SINGLE("L2 Switch", WM8978_INPUT_CONTROL, 2, 1, 0), |
| 281 | SOC_DAPM_SINGLE("MicN Switch", WM8978_INPUT_CONTROL, 1, 1, 0), |
| 282 | SOC_DAPM_SINGLE("MicP Switch", WM8978_INPUT_CONTROL, 0, 1, 0), |
| 283 | }; |
| 284 | static const struct snd_kcontrol_new wm8978_right_input_mixer[] = { |
| 285 | SOC_DAPM_SINGLE("R2 Switch", WM8978_INPUT_CONTROL, 6, 1, 0), |
| 286 | SOC_DAPM_SINGLE("MicN Switch", WM8978_INPUT_CONTROL, 5, 1, 0), |
| 287 | SOC_DAPM_SINGLE("MicP Switch", WM8978_INPUT_CONTROL, 4, 1, 0), |
| 288 | }; |
| 289 | |
| 290 | static const struct snd_soc_dapm_widget wm8978_dapm_widgets[] = { |
| 291 | SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", |
| 292 | WM8978_POWER_MANAGEMENT_3, 0, 0), |
| 293 | SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", |
| 294 | WM8978_POWER_MANAGEMENT_3, 1, 0), |
| 295 | SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", |
| 296 | WM8978_POWER_MANAGEMENT_2, 0, 0), |
| 297 | SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", |
| 298 | WM8978_POWER_MANAGEMENT_2, 1, 0), |
| 299 | |
| 300 | /* Mixer #1: OUT1,2 */ |
| 301 | SOC_MIXER_ARRAY("Left Output Mixer", WM8978_POWER_MANAGEMENT_3, |
| 302 | 2, 0, wm8978_left_out_mixer), |
| 303 | SOC_MIXER_ARRAY("Right Output Mixer", WM8978_POWER_MANAGEMENT_3, |
| 304 | 3, 0, wm8978_right_out_mixer), |
| 305 | |
| 306 | SOC_MIXER_ARRAY("Left Input Mixer", WM8978_POWER_MANAGEMENT_2, |
| 307 | 2, 0, wm8978_left_input_mixer), |
| 308 | SOC_MIXER_ARRAY("Right Input Mixer", WM8978_POWER_MANAGEMENT_2, |
| 309 | 3, 0, wm8978_right_input_mixer), |
| 310 | |
| 311 | SND_SOC_DAPM_PGA("Left Boost Mixer", WM8978_POWER_MANAGEMENT_2, |
| 312 | 4, 0, NULL, 0), |
| 313 | SND_SOC_DAPM_PGA("Right Boost Mixer", WM8978_POWER_MANAGEMENT_2, |
| 314 | 5, 0, NULL, 0), |
| 315 | |
| 316 | SND_SOC_DAPM_PGA("Left Capture PGA", WM8978_LEFT_INP_PGA_CONTROL, |
| 317 | 6, 1, NULL, 0), |
| 318 | SND_SOC_DAPM_PGA("Right Capture PGA", WM8978_RIGHT_INP_PGA_CONTROL, |
| 319 | 6, 1, NULL, 0), |
| 320 | |
| 321 | SND_SOC_DAPM_PGA("Left Headphone Out", WM8978_POWER_MANAGEMENT_2, |
| 322 | 7, 0, NULL, 0), |
| 323 | SND_SOC_DAPM_PGA("Right Headphone Out", WM8978_POWER_MANAGEMENT_2, |
| 324 | 8, 0, NULL, 0), |
| 325 | |
| 326 | SND_SOC_DAPM_PGA("Left Speaker Out", WM8978_POWER_MANAGEMENT_3, |
| 327 | 6, 0, NULL, 0), |
| 328 | SND_SOC_DAPM_PGA("Right Speaker Out", WM8978_POWER_MANAGEMENT_3, |
| 329 | 5, 0, NULL, 0), |
| 330 | |
| 331 | SND_SOC_DAPM_MIXER("OUT4 VMID", WM8978_POWER_MANAGEMENT_3, |
| 332 | 8, 0, NULL, 0), |
| 333 | |
| 334 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8978_POWER_MANAGEMENT_1, 4, 0), |
| 335 | |
| 336 | SND_SOC_DAPM_INPUT("LMICN"), |
| 337 | SND_SOC_DAPM_INPUT("LMICP"), |
| 338 | SND_SOC_DAPM_INPUT("RMICN"), |
| 339 | SND_SOC_DAPM_INPUT("RMICP"), |
| 340 | SND_SOC_DAPM_INPUT("LAUX"), |
| 341 | SND_SOC_DAPM_INPUT("RAUX"), |
| 342 | SND_SOC_DAPM_INPUT("L2"), |
| 343 | SND_SOC_DAPM_INPUT("R2"), |
| 344 | SND_SOC_DAPM_OUTPUT("LHP"), |
| 345 | SND_SOC_DAPM_OUTPUT("RHP"), |
| 346 | SND_SOC_DAPM_OUTPUT("LSPK"), |
| 347 | SND_SOC_DAPM_OUTPUT("RSPK"), |
| 348 | }; |
| 349 | |
Mark Brown | 803b378 | 2011-12-29 11:15:43 +0000 | [diff] [blame] | 350 | static const struct snd_soc_dapm_route wm8978_dapm_routes[] = { |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 351 | /* Output mixer */ |
| 352 | {"Right Output Mixer", "PCM Playback Switch", "Right DAC"}, |
| 353 | {"Right Output Mixer", "Aux Playback Switch", "RAUX"}, |
| 354 | {"Right Output Mixer", "Line Bypass Switch", "Right Boost Mixer"}, |
| 355 | |
| 356 | {"Left Output Mixer", "PCM Playback Switch", "Left DAC"}, |
| 357 | {"Left Output Mixer", "Aux Playback Switch", "LAUX"}, |
| 358 | {"Left Output Mixer", "Line Bypass Switch", "Left Boost Mixer"}, |
| 359 | |
| 360 | /* Outputs */ |
| 361 | {"Right Headphone Out", NULL, "Right Output Mixer"}, |
| 362 | {"RHP", NULL, "Right Headphone Out"}, |
| 363 | |
| 364 | {"Left Headphone Out", NULL, "Left Output Mixer"}, |
| 365 | {"LHP", NULL, "Left Headphone Out"}, |
| 366 | |
| 367 | {"Right Speaker Out", NULL, "Right Output Mixer"}, |
| 368 | {"RSPK", NULL, "Right Speaker Out"}, |
| 369 | |
| 370 | {"Left Speaker Out", NULL, "Left Output Mixer"}, |
| 371 | {"LSPK", NULL, "Left Speaker Out"}, |
| 372 | |
| 373 | /* Boost Mixer */ |
| 374 | {"Right ADC", NULL, "Right Boost Mixer"}, |
| 375 | |
| 376 | {"Right Boost Mixer", NULL, "RAUX"}, |
| 377 | {"Right Boost Mixer", NULL, "Right Capture PGA"}, |
| 378 | {"Right Boost Mixer", NULL, "R2"}, |
| 379 | |
| 380 | {"Left ADC", NULL, "Left Boost Mixer"}, |
| 381 | |
| 382 | {"Left Boost Mixer", NULL, "LAUX"}, |
| 383 | {"Left Boost Mixer", NULL, "Left Capture PGA"}, |
| 384 | {"Left Boost Mixer", NULL, "L2"}, |
| 385 | |
| 386 | /* Input PGA */ |
| 387 | {"Right Capture PGA", NULL, "Right Input Mixer"}, |
| 388 | {"Left Capture PGA", NULL, "Left Input Mixer"}, |
| 389 | |
| 390 | {"Right Input Mixer", "R2 Switch", "R2"}, |
| 391 | {"Right Input Mixer", "MicN Switch", "RMICN"}, |
| 392 | {"Right Input Mixer", "MicP Switch", "RMICP"}, |
| 393 | |
| 394 | {"Left Input Mixer", "L2 Switch", "L2"}, |
| 395 | {"Left Input Mixer", "MicN Switch", "LMICN"}, |
| 396 | {"Left Input Mixer", "MicP Switch", "LMICP"}, |
| 397 | }; |
| 398 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 399 | /* PLL divisors */ |
| 400 | struct wm8978_pll_div { |
| 401 | u32 k; |
| 402 | u8 n; |
| 403 | u8 div2; |
| 404 | }; |
| 405 | |
| 406 | #define FIXED_PLL_SIZE (1 << 24) |
| 407 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 408 | static void pll_factors(struct snd_soc_component *component, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 409 | struct wm8978_pll_div *pll_div, unsigned int target, unsigned int source) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 410 | { |
| 411 | u64 k_part; |
| 412 | unsigned int k, n_div, n_mod; |
| 413 | |
| 414 | n_div = target / source; |
| 415 | if (n_div < 6) { |
| 416 | source >>= 1; |
| 417 | pll_div->div2 = 1; |
| 418 | n_div = target / source; |
| 419 | } else { |
| 420 | pll_div->div2 = 0; |
| 421 | } |
| 422 | |
| 423 | if (n_div < 6 || n_div > 12) |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 424 | dev_warn(component->dev, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 425 | "WM8978 N value exceeds recommended range! N = %u\n", |
| 426 | n_div); |
| 427 | |
| 428 | pll_div->n = n_div; |
| 429 | n_mod = target - source * n_div; |
| 430 | k_part = FIXED_PLL_SIZE * (long long)n_mod + source / 2; |
| 431 | |
| 432 | do_div(k_part, source); |
| 433 | |
| 434 | k = k_part & 0xFFFFFFFF; |
| 435 | |
| 436 | pll_div->k = k; |
| 437 | } |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 438 | |
| 439 | /* MCLK dividers */ |
| 440 | static const int mclk_numerator[] = {1, 3, 2, 3, 4, 6, 8, 12}; |
| 441 | static const int mclk_denominator[] = {1, 2, 1, 1, 1, 1, 1, 1}; |
| 442 | |
| 443 | /* |
| 444 | * find index >= idx, such that, for a given f_out, |
| 445 | * 3 * f_mclk / 4 <= f_PLLOUT < 13 * f_mclk / 4 |
| 446 | * f_out can be f_256fs or f_opclk, currently only used for f_256fs. Can be |
| 447 | * generalised for f_opclk with suitable coefficient arrays, but currently |
| 448 | * the OPCLK divisor is calculated directly, not iteratively. |
| 449 | */ |
| 450 | static int wm8978_enum_mclk(unsigned int f_out, unsigned int f_mclk, |
| 451 | unsigned int *f_pllout) |
| 452 | { |
| 453 | int i; |
| 454 | |
| 455 | for (i = 0; i < ARRAY_SIZE(mclk_numerator); i++) { |
| 456 | unsigned int f_pllout_x4 = 4 * f_out * mclk_numerator[i] / |
| 457 | mclk_denominator[i]; |
| 458 | if (3 * f_mclk <= f_pllout_x4 && f_pllout_x4 < 13 * f_mclk) { |
| 459 | *f_pllout = f_pllout_x4 / 4; |
| 460 | return i; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | return -EINVAL; |
| 465 | } |
| 466 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 467 | /* |
| 468 | * Calculate internal frequencies and dividers, according to Figure 40 |
| 469 | * "PLL and Clock Select Circuit" in WM8978 datasheet Rev. 2.6 |
| 470 | */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 471 | static int wm8978_configure_pll(struct snd_soc_component *component) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 472 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 473 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 474 | struct wm8978_pll_div pll_div; |
| 475 | unsigned int f_opclk = wm8978->f_opclk, f_mclk = wm8978->f_mclk, |
| 476 | f_256fs = wm8978->f_256fs; |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 477 | unsigned int f2; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 478 | |
| 479 | if (!f_mclk) |
| 480 | return -EINVAL; |
| 481 | |
| 482 | if (f_opclk) { |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 483 | unsigned int opclk_div; |
| 484 | /* Cannot set up MCLK divider now, do later */ |
| 485 | wm8978->mclk_idx = -1; |
| 486 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 487 | /* |
| 488 | * The user needs OPCLK. Choose OPCLKDIV to put |
| 489 | * 6 <= R = f2 / f1 < 13, 1 <= OPCLKDIV <= 4. |
| 490 | * f_opclk = f_mclk * prescale * R / 4 / OPCLKDIV, where |
| 491 | * prescale = 1, or prescale = 2. Prescale is calculated inside |
| 492 | * pll_factors(). We have to select f_PLLOUT, such that |
| 493 | * f_mclk * 3 / 4 <= f_PLLOUT < f_mclk * 13 / 4. Must be |
| 494 | * f_mclk * 3 / 16 <= f_opclk < f_mclk * 13 / 4. |
| 495 | */ |
| 496 | if (16 * f_opclk < 3 * f_mclk || 4 * f_opclk >= 13 * f_mclk) |
| 497 | return -EINVAL; |
| 498 | |
| 499 | if (4 * f_opclk < 3 * f_mclk) |
| 500 | /* Have to use OPCLKDIV */ |
Shang XiaoJing | c544026 | 2022-09-27 22:09:46 +0800 | [diff] [blame] | 501 | opclk_div = DIV_ROUND_UP(3 * f_mclk / 4, f_opclk); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 502 | else |
| 503 | opclk_div = 1; |
| 504 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 505 | dev_dbg(component->dev, "%s: OPCLKDIV=%d\n", __func__, opclk_div); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 506 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 507 | snd_soc_component_update_bits(component, WM8978_GPIO_CONTROL, 0x30, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 508 | (opclk_div - 1) << 4); |
| 509 | |
| 510 | wm8978->f_pllout = f_opclk * opclk_div; |
| 511 | } else if (f_256fs) { |
| 512 | /* |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 513 | * Not using OPCLK, but PLL is used for the codec, choose R: |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 514 | * 6 <= R = f2 / f1 < 13, to put 1 <= MCLKDIV <= 12. |
| 515 | * f_256fs = f_mclk * prescale * R / 4 / MCLKDIV, where |
| 516 | * prescale = 1, or prescale = 2. Prescale is calculated inside |
| 517 | * pll_factors(). We have to select f_PLLOUT, such that |
| 518 | * f_mclk * 3 / 4 <= f_PLLOUT < f_mclk * 13 / 4. Must be |
| 519 | * f_mclk * 3 / 48 <= f_256fs < f_mclk * 13 / 4. This means MCLK |
| 520 | * must be 3.781MHz <= f_MCLK <= 32.768MHz |
| 521 | */ |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 522 | int idx = wm8978_enum_mclk(f_256fs, f_mclk, &wm8978->f_pllout); |
| 523 | if (idx < 0) |
| 524 | return idx; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 525 | |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 526 | wm8978->mclk_idx = idx; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 527 | } else { |
| 528 | return -EINVAL; |
| 529 | } |
| 530 | |
| 531 | f2 = wm8978->f_pllout * 4; |
| 532 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 533 | dev_dbg(component->dev, "%s: f_MCLK=%uHz, f_PLLOUT=%uHz\n", __func__, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 534 | wm8978->f_mclk, wm8978->f_pllout); |
| 535 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 536 | pll_factors(component, &pll_div, f2, wm8978->f_mclk); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 537 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 538 | dev_dbg(component->dev, "%s: calculated PLL N=0x%x, K=0x%x, div2=%d\n", |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 539 | __func__, pll_div.n, pll_div.k, pll_div.div2); |
| 540 | |
| 541 | /* Turn PLL off for configuration... */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 542 | snd_soc_component_update_bits(component, WM8978_POWER_MANAGEMENT_1, 0x20, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 543 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 544 | snd_soc_component_write(component, WM8978_PLL_N, (pll_div.div2 << 4) | pll_div.n); |
| 545 | snd_soc_component_write(component, WM8978_PLL_K1, pll_div.k >> 18); |
| 546 | snd_soc_component_write(component, WM8978_PLL_K2, (pll_div.k >> 9) & 0x1ff); |
| 547 | snd_soc_component_write(component, WM8978_PLL_K3, pll_div.k & 0x1ff); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 548 | |
| 549 | /* ...and on again */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 550 | snd_soc_component_update_bits(component, WM8978_POWER_MANAGEMENT_1, 0x20, 0x20); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 551 | |
| 552 | if (f_opclk) |
| 553 | /* Output PLL (OPCLK) to GPIO1 */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 554 | snd_soc_component_update_bits(component, WM8978_GPIO_CONTROL, 7, 4); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 555 | |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | /* |
| 560 | * Configure WM8978 clock dividers. |
| 561 | */ |
| 562 | static int wm8978_set_dai_clkdiv(struct snd_soc_dai *codec_dai, |
| 563 | int div_id, int div) |
| 564 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 565 | struct snd_soc_component *component = codec_dai->component; |
| 566 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 567 | int ret = 0; |
| 568 | |
| 569 | switch (div_id) { |
| 570 | case WM8978_OPCLKRATE: |
| 571 | wm8978->f_opclk = div; |
| 572 | |
| 573 | if (wm8978->f_mclk) |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 574 | /* |
| 575 | * We know the MCLK frequency, the user has requested |
| 576 | * OPCLK, configure the PLL based on that and start it |
| 577 | * and OPCLK immediately. We will configure PLL to match |
| 578 | * user-requested OPCLK frquency as good as possible. |
| 579 | * In fact, it is likely, that matching the sampling |
| 580 | * rate, when it becomes known, is more important, and |
| 581 | * we will not be reconfiguring PLL then, because we |
| 582 | * must not interrupt OPCLK. But it should be fine, |
| 583 | * because typically the user will request OPCLK to run |
| 584 | * at 256fs or 512fs, and for these cases we will also |
| 585 | * find an exact MCLK divider configuration - it will |
| 586 | * be equal to or double the OPCLK divisor. |
| 587 | */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 588 | ret = wm8978_configure_pll(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 589 | break; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 590 | case WM8978_BCLKDIV: |
| 591 | if (div & ~0x1c) |
| 592 | return -EINVAL; |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 593 | snd_soc_component_update_bits(component, WM8978_CLOCKING, 0x1c, div); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 594 | break; |
| 595 | default: |
| 596 | return -EINVAL; |
| 597 | } |
| 598 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 599 | dev_dbg(component->dev, "%s: ID %d, value %u\n", __func__, div_id, div); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 600 | |
| 601 | return ret; |
| 602 | } |
| 603 | |
| 604 | /* |
| 605 | * @freq: when .set_pll() us not used, freq is codec MCLK input frequency |
| 606 | */ |
| 607 | static int wm8978_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, |
| 608 | unsigned int freq, int dir) |
| 609 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 610 | struct snd_soc_component *component = codec_dai->component; |
| 611 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 612 | int ret = 0; |
| 613 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 614 | dev_dbg(component->dev, "%s: ID %d, freq %u\n", __func__, clk_id, freq); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 615 | |
| 616 | if (freq) { |
| 617 | wm8978->f_mclk = freq; |
| 618 | |
| 619 | /* Even if MCLK is used for system clock, might have to drive OPCLK */ |
| 620 | if (wm8978->f_opclk) |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 621 | ret = wm8978_configure_pll(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 622 | |
| 623 | /* Our sysclk is fixed to 256 * fs, will configure in .hw_params() */ |
| 624 | |
| 625 | if (!ret) |
| 626 | wm8978->sysclk = clk_id; |
| 627 | } |
| 628 | |
| 629 | if (wm8978->sysclk == WM8978_PLL && (!freq || clk_id == WM8978_MCLK)) { |
| 630 | /* Clock CODEC directly from MCLK */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 631 | snd_soc_component_update_bits(component, WM8978_CLOCKING, 0x100, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 632 | |
| 633 | /* GPIO1 into default mode as input - before configuring PLL */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 634 | snd_soc_component_update_bits(component, WM8978_GPIO_CONTROL, 7, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 635 | |
| 636 | /* Turn off PLL */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 637 | snd_soc_component_update_bits(component, WM8978_POWER_MANAGEMENT_1, 0x20, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 638 | wm8978->sysclk = WM8978_MCLK; |
| 639 | wm8978->f_pllout = 0; |
| 640 | wm8978->f_opclk = 0; |
| 641 | } |
| 642 | |
| 643 | return ret; |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | * Set ADC and Voice DAC format. |
| 648 | */ |
| 649 | static int wm8978_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) |
| 650 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 651 | struct snd_soc_component *component = codec_dai->component; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 652 | /* |
| 653 | * BCLK polarity mask = 0x100, LRC clock polarity mask = 0x80, |
| 654 | * Data Format mask = 0x18: all will be calculated anew |
| 655 | */ |
Kuninori Morimoto | 6d75dfc | 2020-06-16 14:21:29 +0900 | [diff] [blame] | 656 | u16 iface = snd_soc_component_read(component, WM8978_AUDIO_INTERFACE) & ~0x198; |
| 657 | u16 clk = snd_soc_component_read(component, WM8978_CLOCKING); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 658 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 659 | dev_dbg(component->dev, "%s\n", __func__); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 660 | |
| 661 | /* set master/slave audio interface */ |
| 662 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 663 | case SND_SOC_DAIFMT_CBM_CFM: |
| 664 | clk |= 1; |
| 665 | break; |
| 666 | case SND_SOC_DAIFMT_CBS_CFS: |
| 667 | clk &= ~1; |
| 668 | break; |
| 669 | default: |
| 670 | return -EINVAL; |
| 671 | } |
| 672 | |
| 673 | /* interface format */ |
| 674 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 675 | case SND_SOC_DAIFMT_I2S: |
| 676 | iface |= 0x10; |
| 677 | break; |
| 678 | case SND_SOC_DAIFMT_RIGHT_J: |
| 679 | break; |
| 680 | case SND_SOC_DAIFMT_LEFT_J: |
| 681 | iface |= 0x8; |
| 682 | break; |
| 683 | case SND_SOC_DAIFMT_DSP_A: |
| 684 | iface |= 0x18; |
| 685 | break; |
| 686 | default: |
| 687 | return -EINVAL; |
| 688 | } |
| 689 | |
| 690 | /* clock inversion */ |
| 691 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 692 | case SND_SOC_DAIFMT_NB_NF: |
| 693 | break; |
| 694 | case SND_SOC_DAIFMT_IB_IF: |
| 695 | iface |= 0x180; |
| 696 | break; |
| 697 | case SND_SOC_DAIFMT_IB_NF: |
| 698 | iface |= 0x100; |
| 699 | break; |
| 700 | case SND_SOC_DAIFMT_NB_IF: |
| 701 | iface |= 0x80; |
| 702 | break; |
| 703 | default: |
| 704 | return -EINVAL; |
| 705 | } |
| 706 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 707 | snd_soc_component_write(component, WM8978_AUDIO_INTERFACE, iface); |
| 708 | snd_soc_component_write(component, WM8978_CLOCKING, clk); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 709 | |
| 710 | return 0; |
| 711 | } |
| 712 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 713 | /* |
| 714 | * Set PCM DAI bit size and sample rate. |
| 715 | */ |
| 716 | static int wm8978_hw_params(struct snd_pcm_substream *substream, |
| 717 | struct snd_pcm_hw_params *params, |
| 718 | struct snd_soc_dai *dai) |
| 719 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 720 | struct snd_soc_component *component = dai->component; |
| 721 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 722 | /* Word length mask = 0x60 */ |
Kuninori Morimoto | 6d75dfc | 2020-06-16 14:21:29 +0900 | [diff] [blame] | 723 | u16 iface_ctl = snd_soc_component_read(component, WM8978_AUDIO_INTERFACE) & ~0x60; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 724 | /* Sampling rate mask = 0xe (for filters) */ |
Kuninori Morimoto | 6d75dfc | 2020-06-16 14:21:29 +0900 | [diff] [blame] | 725 | u16 add_ctl = snd_soc_component_read(component, WM8978_ADDITIONAL_CONTROL) & ~0xe; |
| 726 | u16 clking = snd_soc_component_read(component, WM8978_CLOCKING); |
Pierre-Louis Bossart | 729d42a | 2021-03-10 18:43:28 -0600 | [diff] [blame] | 727 | enum wm8978_sysclk_src current_clk_id = (clking & 0x100) ? |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 728 | WM8978_PLL : WM8978_MCLK; |
| 729 | unsigned int f_sel, diff, diff_best = INT_MAX; |
| 730 | int i, best = 0; |
| 731 | |
| 732 | if (!wm8978->f_mclk) |
| 733 | return -EINVAL; |
| 734 | |
| 735 | /* bit size */ |
Mark Brown | a4c8261 | 2014-07-31 12:53:57 +0100 | [diff] [blame] | 736 | switch (params_width(params)) { |
| 737 | case 16: |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 738 | break; |
Mark Brown | a4c8261 | 2014-07-31 12:53:57 +0100 | [diff] [blame] | 739 | case 20: |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 740 | iface_ctl |= 0x20; |
| 741 | break; |
Mark Brown | a4c8261 | 2014-07-31 12:53:57 +0100 | [diff] [blame] | 742 | case 24: |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 743 | iface_ctl |= 0x40; |
| 744 | break; |
Mark Brown | a4c8261 | 2014-07-31 12:53:57 +0100 | [diff] [blame] | 745 | case 32: |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 746 | iface_ctl |= 0x60; |
| 747 | break; |
| 748 | } |
| 749 | |
| 750 | /* filter coefficient */ |
| 751 | switch (params_rate(params)) { |
| 752 | case 8000: |
| 753 | add_ctl |= 0x5 << 1; |
| 754 | break; |
| 755 | case 11025: |
| 756 | add_ctl |= 0x4 << 1; |
| 757 | break; |
| 758 | case 16000: |
| 759 | add_ctl |= 0x3 << 1; |
| 760 | break; |
| 761 | case 22050: |
| 762 | add_ctl |= 0x2 << 1; |
| 763 | break; |
| 764 | case 32000: |
| 765 | add_ctl |= 0x1 << 1; |
| 766 | break; |
| 767 | case 44100: |
| 768 | case 48000: |
| 769 | break; |
| 770 | } |
| 771 | |
| 772 | /* Sampling rate is known now, can configure the MCLK divider */ |
| 773 | wm8978->f_256fs = params_rate(params) * 256; |
| 774 | |
| 775 | if (wm8978->sysclk == WM8978_MCLK) { |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 776 | wm8978->mclk_idx = -1; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 777 | f_sel = wm8978->f_mclk; |
| 778 | } else { |
Eric Millbrandt | 55c6f4c | 2012-11-02 17:05:44 -0400 | [diff] [blame] | 779 | if (!wm8978->f_opclk) { |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 780 | /* We only enter here, if OPCLK is not used */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 781 | int ret = wm8978_configure_pll(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 782 | if (ret < 0) |
| 783 | return ret; |
| 784 | } |
| 785 | f_sel = wm8978->f_pllout; |
| 786 | } |
| 787 | |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 788 | if (wm8978->mclk_idx < 0) { |
| 789 | /* Either MCLK is used directly, or OPCLK is used */ |
| 790 | if (f_sel < wm8978->f_256fs || f_sel > 12 * wm8978->f_256fs) |
| 791 | return -EINVAL; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 792 | |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 793 | for (i = 0; i < ARRAY_SIZE(mclk_numerator); i++) { |
| 794 | diff = abs(wm8978->f_256fs * 3 - |
| 795 | f_sel * 3 * mclk_denominator[i] / mclk_numerator[i]); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 796 | |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 797 | if (diff < diff_best) { |
| 798 | diff_best = diff; |
| 799 | best = i; |
| 800 | } |
| 801 | |
| 802 | if (!diff) |
| 803 | break; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 804 | } |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 805 | } else { |
| 806 | /* OPCLK not used, codec driven by PLL */ |
| 807 | best = wm8978->mclk_idx; |
| 808 | diff = 0; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 809 | } |
| 810 | |
| 811 | if (diff) |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 812 | dev_warn(component->dev, "Imprecise sampling rate: %uHz%s\n", |
Guennadi Liakhovetski | b058091 | 2010-01-29 14:51:26 +0100 | [diff] [blame] | 813 | f_sel * mclk_denominator[best] / mclk_numerator[best] / 256, |
| 814 | wm8978->sysclk == WM8978_MCLK ? |
| 815 | ", consider using PLL" : ""); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 816 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 817 | dev_dbg(component->dev, "%s: width %d, rate %u, MCLK divisor #%d\n", __func__, |
Mark Brown | a4c8261 | 2014-07-31 12:53:57 +0100 | [diff] [blame] | 818 | params_width(params), params_rate(params), best); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 819 | |
| 820 | /* MCLK divisor mask = 0xe0 */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 821 | snd_soc_component_update_bits(component, WM8978_CLOCKING, 0xe0, best << 5); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 822 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 823 | snd_soc_component_write(component, WM8978_AUDIO_INTERFACE, iface_ctl); |
| 824 | snd_soc_component_write(component, WM8978_ADDITIONAL_CONTROL, add_ctl); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 825 | |
| 826 | if (wm8978->sysclk != current_clk_id) { |
| 827 | if (wm8978->sysclk == WM8978_PLL) |
| 828 | /* Run CODEC from PLL instead of MCLK */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 829 | snd_soc_component_update_bits(component, WM8978_CLOCKING, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 830 | 0x100, 0x100); |
| 831 | else |
| 832 | /* Clock CODEC directly from MCLK */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 833 | snd_soc_component_update_bits(component, WM8978_CLOCKING, 0x100, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | return 0; |
| 837 | } |
| 838 | |
Kuninori Morimoto | 26d3c16 | 2020-07-09 10:56:53 +0900 | [diff] [blame] | 839 | static int wm8978_mute(struct snd_soc_dai *dai, int mute, int direction) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 840 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 841 | struct snd_soc_component *component = dai->component; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 842 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 843 | dev_dbg(component->dev, "%s: %d\n", __func__, mute); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 844 | |
| 845 | if (mute) |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 846 | snd_soc_component_update_bits(component, WM8978_DAC_CONTROL, 0x40, 0x40); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 847 | else |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 848 | snd_soc_component_update_bits(component, WM8978_DAC_CONTROL, 0x40, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 849 | |
| 850 | return 0; |
| 851 | } |
| 852 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 853 | static int wm8978_set_bias_level(struct snd_soc_component *component, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 854 | enum snd_soc_bias_level level) |
| 855 | { |
Kuninori Morimoto | 6d75dfc | 2020-06-16 14:21:29 +0900 | [diff] [blame] | 856 | u16 power1 = snd_soc_component_read(component, WM8978_POWER_MANAGEMENT_1) & ~3; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 857 | |
| 858 | switch (level) { |
| 859 | case SND_SOC_BIAS_ON: |
| 860 | case SND_SOC_BIAS_PREPARE: |
| 861 | power1 |= 1; /* VMID 75k */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 862 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_1, power1); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 863 | break; |
| 864 | case SND_SOC_BIAS_STANDBY: |
| 865 | /* bit 3: enable bias, bit 2: enable I/O tie off buffer */ |
| 866 | power1 |= 0xc; |
| 867 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 868 | if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 869 | /* Initial cap charge at VMID 5k */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 870 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_1, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 871 | power1 | 0x3); |
| 872 | mdelay(100); |
| 873 | } |
| 874 | |
| 875 | power1 |= 0x2; /* VMID 500k */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 876 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_1, power1); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 877 | break; |
| 878 | case SND_SOC_BIAS_OFF: |
| 879 | /* Preserve PLL - OPCLK may be used by someone */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 880 | snd_soc_component_update_bits(component, WM8978_POWER_MANAGEMENT_1, ~0x20, 0); |
| 881 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_2, 0); |
| 882 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_3, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 883 | break; |
| 884 | } |
| 885 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 886 | dev_dbg(component->dev, "%s: %d, %x\n", __func__, level, power1); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 887 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 888 | return 0; |
| 889 | } |
| 890 | |
| 891 | #define WM8978_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ |
| 892 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
| 893 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 894 | static const struct snd_soc_dai_ops wm8978_dai_ops = { |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 895 | .hw_params = wm8978_hw_params, |
Kuninori Morimoto | 26d3c16 | 2020-07-09 10:56:53 +0900 | [diff] [blame] | 896 | .mute_stream = wm8978_mute, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 897 | .set_fmt = wm8978_set_dai_fmt, |
| 898 | .set_clkdiv = wm8978_set_dai_clkdiv, |
| 899 | .set_sysclk = wm8978_set_dai_sysclk, |
Kuninori Morimoto | 26d3c16 | 2020-07-09 10:56:53 +0900 | [diff] [blame] | 900 | .no_capture_mute = 1, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 901 | }; |
| 902 | |
| 903 | /* Also supports 12kHz */ |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 904 | static struct snd_soc_dai_driver wm8978_dai = { |
| 905 | .name = "wm8978-hifi", |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 906 | .playback = { |
| 907 | .stream_name = "Playback", |
| 908 | .channels_min = 1, |
| 909 | .channels_max = 2, |
| 910 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 911 | .formats = WM8978_FORMATS, |
| 912 | }, |
| 913 | .capture = { |
| 914 | .stream_name = "Capture", |
| 915 | .channels_min = 1, |
| 916 | .channels_max = 2, |
| 917 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 918 | .formats = WM8978_FORMATS, |
| 919 | }, |
| 920 | .ops = &wm8978_dai_ops, |
Kuninori Morimoto | 0769575 | 2021-01-15 13:54:13 +0900 | [diff] [blame] | 921 | .symmetric_rate = 1, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 922 | }; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 923 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 924 | static int wm8978_suspend(struct snd_soc_component *component) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 925 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 926 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 927 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 928 | snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 929 | /* Also switch PLL off */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 930 | snd_soc_component_write(component, WM8978_POWER_MANAGEMENT_1, 0); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 931 | |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 932 | regcache_mark_dirty(wm8978->regmap); |
| 933 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 934 | return 0; |
| 935 | } |
| 936 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 937 | static int wm8978_resume(struct snd_soc_component *component) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 938 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 939 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 940 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 941 | /* Sync reg_cache with the hardware */ |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 942 | regcache_sync(wm8978->regmap); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 943 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 944 | snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 945 | |
| 946 | if (wm8978->f_pllout) |
| 947 | /* Switch PLL on */ |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 948 | snd_soc_component_update_bits(component, WM8978_POWER_MANAGEMENT_1, 0x20, 0x20); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 949 | |
| 950 | return 0; |
| 951 | } |
| 952 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 953 | /* |
| 954 | * These registers contain an "update" bit - bit 8. This means, for example, |
| 955 | * that one can write new DAC digital volume for both channels, but only when |
| 956 | * the update bit is set, will also the volume be updated - simultaneously for |
| 957 | * both channels. |
| 958 | */ |
| 959 | static const int update_reg[] = { |
| 960 | WM8978_LEFT_DAC_DIGITAL_VOLUME, |
| 961 | WM8978_RIGHT_DAC_DIGITAL_VOLUME, |
| 962 | WM8978_LEFT_ADC_DIGITAL_VOLUME, |
| 963 | WM8978_RIGHT_ADC_DIGITAL_VOLUME, |
| 964 | WM8978_LEFT_INP_PGA_CONTROL, |
| 965 | WM8978_RIGHT_INP_PGA_CONTROL, |
| 966 | WM8978_LOUT1_HP_CONTROL, |
| 967 | WM8978_ROUT1_HP_CONTROL, |
| 968 | WM8978_LOUT2_SPK_CONTROL, |
| 969 | WM8978_ROUT2_SPK_CONTROL, |
| 970 | }; |
| 971 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 972 | static int wm8978_probe(struct snd_soc_component *component) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 973 | { |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 974 | struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component); |
Xiubo Li | 5d6be5a | 2014-03-11 12:43:20 +0800 | [diff] [blame] | 975 | int i; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 976 | |
| 977 | /* |
| 978 | * Set default system clock to PLL, it is more precise, this is also the |
| 979 | * default hardware setting |
| 980 | */ |
| 981 | wm8978->sysclk = WM8978_PLL; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 982 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 983 | /* |
| 984 | * Set the update bit in all registers, that have one. This way all |
| 985 | * writes to those registers will also cause the update bit to be |
| 986 | * written. |
| 987 | */ |
| 988 | for (i = 0; i < ARRAY_SIZE(update_reg); i++) |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 989 | snd_soc_component_update_bits(component, update_reg[i], 0x100, 0x100); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 990 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 991 | return 0; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 992 | } |
| 993 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 994 | static const struct snd_soc_component_driver soc_component_dev_wm8978 = { |
| 995 | .probe = wm8978_probe, |
| 996 | .suspend = wm8978_suspend, |
| 997 | .resume = wm8978_resume, |
| 998 | .set_bias_level = wm8978_set_bias_level, |
| 999 | .controls = wm8978_snd_controls, |
| 1000 | .num_controls = ARRAY_SIZE(wm8978_snd_controls), |
| 1001 | .dapm_widgets = wm8978_dapm_widgets, |
| 1002 | .num_dapm_widgets = ARRAY_SIZE(wm8978_dapm_widgets), |
| 1003 | .dapm_routes = wm8978_dapm_routes, |
| 1004 | .num_dapm_routes = ARRAY_SIZE(wm8978_dapm_routes), |
| 1005 | .idle_bias_on = 1, |
| 1006 | .use_pmdown_time = 1, |
| 1007 | .endianness = 1, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1008 | }; |
| 1009 | |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 1010 | static const struct regmap_config wm8978_regmap_config = { |
| 1011 | .reg_bits = 7, |
| 1012 | .val_bits = 9, |
| 1013 | |
| 1014 | .max_register = WM8978_MAX_REGISTER, |
| 1015 | .volatile_reg = wm8978_volatile, |
| 1016 | |
| 1017 | .cache_type = REGCACHE_RBTREE, |
| 1018 | .reg_defaults = wm8978_reg_defaults, |
| 1019 | .num_reg_defaults = ARRAY_SIZE(wm8978_reg_defaults), |
| 1020 | }; |
| 1021 | |
Stephen Kitt | 97b0b6e | 2022-04-05 14:24:11 +0200 | [diff] [blame] | 1022 | static int wm8978_i2c_probe(struct i2c_client *i2c) |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1023 | { |
| 1024 | struct wm8978_priv *wm8978; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1025 | int ret; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1026 | |
Mark Brown | 623105d | 2011-12-29 11:16:53 +0000 | [diff] [blame] | 1027 | wm8978 = devm_kzalloc(&i2c->dev, sizeof(struct wm8978_priv), |
| 1028 | GFP_KERNEL); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1029 | if (wm8978 == NULL) |
| 1030 | return -ENOMEM; |
| 1031 | |
Sachin Kamat | ad2c175 | 2012-11-26 17:19:45 +0530 | [diff] [blame] | 1032 | wm8978->regmap = devm_regmap_init_i2c(i2c, &wm8978_regmap_config); |
Mark Brown | ee60d01 | 2011-12-29 11:39:39 +0000 | [diff] [blame] | 1033 | if (IS_ERR(wm8978->regmap)) { |
| 1034 | ret = PTR_ERR(wm8978->regmap); |
| 1035 | dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); |
| 1036 | return ret; |
| 1037 | } |
| 1038 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1039 | i2c_set_clientdata(i2c, wm8978); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1040 | |
Mark Brown | 008f8d4 | 2011-12-29 11:44:03 +0000 | [diff] [blame] | 1041 | /* Reset the codec */ |
| 1042 | ret = regmap_write(wm8978->regmap, WM8978_RESET, 0); |
| 1043 | if (ret != 0) { |
| 1044 | dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); |
Sachin Kamat | ad2c175 | 2012-11-26 17:19:45 +0530 | [diff] [blame] | 1045 | return ret; |
Mark Brown | 008f8d4 | 2011-12-29 11:44:03 +0000 | [diff] [blame] | 1046 | } |
| 1047 | |
Kuninori Morimoto | 98020a7 | 2018-01-29 03:06:37 +0000 | [diff] [blame] | 1048 | ret = devm_snd_soc_register_component(&i2c->dev, |
| 1049 | &soc_component_dev_wm8978, &wm8978_dai, 1); |
Mark Brown | 008f8d4 | 2011-12-29 11:44:03 +0000 | [diff] [blame] | 1050 | if (ret != 0) { |
| 1051 | dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); |
Sachin Kamat | ad2c175 | 2012-11-26 17:19:45 +0530 | [diff] [blame] | 1052 | return ret; |
Mark Brown | 008f8d4 | 2011-12-29 11:44:03 +0000 | [diff] [blame] | 1053 | } |
Mark Brown | 623105d | 2011-12-29 11:16:53 +0000 | [diff] [blame] | 1054 | |
Mark Brown | 008f8d4 | 2011-12-29 11:44:03 +0000 | [diff] [blame] | 1055 | return 0; |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1056 | } |
| 1057 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1058 | static const struct i2c_device_id wm8978_i2c_id[] = { |
| 1059 | { "wm8978", 0 }, |
| 1060 | { } |
| 1061 | }; |
| 1062 | MODULE_DEVICE_TABLE(i2c, wm8978_i2c_id); |
| 1063 | |
Javier Martinez Canillas | 5cf015d | 2017-04-04 15:26:29 -0400 | [diff] [blame] | 1064 | static const struct of_device_id wm8978_of_match[] = { |
| 1065 | { .compatible = "wlf,wm8978", }, |
| 1066 | { } |
| 1067 | }; |
| 1068 | MODULE_DEVICE_TABLE(of, wm8978_of_match); |
| 1069 | |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1070 | static struct i2c_driver wm8978_i2c_driver = { |
| 1071 | .driver = { |
Mark Brown | 5250a50 | 2010-09-19 16:07:06 +0100 | [diff] [blame] | 1072 | .name = "wm8978", |
Javier Martinez Canillas | 5cf015d | 2017-04-04 15:26:29 -0400 | [diff] [blame] | 1073 | .of_match_table = wm8978_of_match, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1074 | }, |
Stephen Kitt | 97b0b6e | 2022-04-05 14:24:11 +0200 | [diff] [blame] | 1075 | .probe_new = wm8978_i2c_probe, |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1076 | .id_table = wm8978_i2c_id, |
| 1077 | }; |
| 1078 | |
Sachin Kamat | 0b34ac8 | 2012-08-06 17:25:50 +0530 | [diff] [blame] | 1079 | module_i2c_driver(wm8978_i2c_driver); |
Guennadi Liakhovetski | 0d34e91 | 2010-01-27 18:56:23 +0100 | [diff] [blame] | 1080 | |
| 1081 | MODULE_DESCRIPTION("ASoC WM8978 codec driver"); |
| 1082 | MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); |
| 1083 | MODULE_LICENSE("GPL"); |