.. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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1 | 2 | /* |
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2 | 3 | * cs42l51.c |
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3 | 4 | * |
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.. | .. |
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7 | 8 | * |
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8 | 9 | * Based on cs4270.c - Copyright (c) Freescale Semiconductor |
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9 | 10 | * |
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10 | | - * This program is free software; you can redistribute it and/or modify |
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11 | | - * it under the terms of the GNU General Public License version 2 as |
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12 | | - * published by the Free Software Foundation. |
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13 | | - * |
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14 | | - * This program is distributed in the hope that it will be useful, |
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15 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | | - * GNU General Public License for more details. |
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18 | | - * |
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19 | 11 | * For now: |
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20 | 12 | * - Only I2C is support. Not SPI |
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21 | 13 | * - master mode *NOT* supported |
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22 | 14 | */ |
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23 | 15 | |
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| 16 | +#include <linux/clk.h> |
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24 | 17 | #include <linux/module.h> |
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25 | 18 | #include <linux/slab.h> |
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26 | 19 | #include <sound/core.h> |
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.. | .. |
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29 | 22 | #include <sound/initval.h> |
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30 | 23 | #include <sound/pcm_params.h> |
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31 | 24 | #include <sound/pcm.h> |
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| 25 | +#include <linux/gpio/consumer.h> |
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32 | 26 | #include <linux/regmap.h> |
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| 27 | +#include <linux/regulator/consumer.h> |
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33 | 28 | |
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34 | 29 | #include "cs42l51.h" |
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35 | 30 | |
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.. | .. |
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39 | 34 | MODE_MASTER, |
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40 | 35 | }; |
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41 | 36 | |
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| 37 | +static const char * const cs42l51_supply_names[] = { |
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| 38 | + "VL", |
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| 39 | + "VD", |
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| 40 | + "VA", |
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| 41 | + "VAHP", |
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| 42 | +}; |
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| 43 | + |
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42 | 44 | struct cs42l51_private { |
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43 | 45 | unsigned int mclk; |
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| 46 | + struct clk *mclk_handle; |
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44 | 47 | unsigned int audio_mode; /* The mode (I2S or left-justified) */ |
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45 | 48 | enum master_slave_mode func; |
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| 49 | + struct regulator_bulk_data supplies[ARRAY_SIZE(cs42l51_supply_names)]; |
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| 50 | + struct gpio_desc *reset_gpio; |
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| 51 | + struct regmap *regmap; |
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46 | 52 | }; |
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47 | 53 | |
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48 | 54 | #define CS42L51_FORMATS ( \ |
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.. | .. |
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55 | 61 | struct snd_ctl_elem_value *ucontrol) |
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56 | 62 | { |
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57 | 63 | struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
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58 | | - unsigned long value = snd_soc_component_read32(component, CS42L51_PCM_MIXER)&3; |
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| 64 | + unsigned long value = snd_soc_component_read(component, CS42L51_PCM_MIXER)&3; |
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59 | 65 | |
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60 | 66 | switch (value) { |
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61 | 67 | default: |
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.. | .. |
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109 | 115 | static const DECLARE_TLV_DB_SCALE(aout_tlv, -10200, 50, 0); |
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110 | 116 | |
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111 | 117 | static const DECLARE_TLV_DB_SCALE(boost_tlv, 1600, 1600, 0); |
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| 118 | +static const DECLARE_TLV_DB_SCALE(adc_boost_tlv, 2000, 2000, 0); |
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112 | 119 | static const char *chan_mix[] = { |
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113 | 120 | "L R", |
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114 | 121 | "L+R", |
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115 | 122 | "R L", |
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116 | 123 | }; |
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| 124 | + |
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| 125 | +static const DECLARE_TLV_DB_SCALE(pga_tlv, -300, 50, 0); |
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| 126 | +static const DECLARE_TLV_DB_SCALE(adc_att_tlv, -9600, 100, 0); |
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117 | 127 | |
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118 | 128 | static SOC_ENUM_SINGLE_EXT_DECL(cs42l51_chan_mix, chan_mix); |
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119 | 129 | |
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.. | .. |
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131 | 141 | 0, 0x19, 0x7F, adc_pcm_tlv), |
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132 | 142 | SOC_DOUBLE_R("ADC Mixer Switch", |
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133 | 143 | CS42L51_ADCA_VOL, CS42L51_ADCB_VOL, 7, 1, 1), |
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| 144 | + SOC_DOUBLE_R_SX_TLV("ADC Attenuator Volume", |
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| 145 | + CS42L51_ADCA_ATT, CS42L51_ADCB_ATT, |
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| 146 | + 0, 0xA0, 96, adc_att_tlv), |
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| 147 | + SOC_DOUBLE_R_SX_TLV("PGA Volume", |
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| 148 | + CS42L51_ALC_PGA_CTL, CS42L51_ALC_PGB_CTL, |
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| 149 | + 0, 0x1A, 30, pga_tlv), |
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134 | 150 | SOC_SINGLE("Playback Deemphasis Switch", CS42L51_DAC_CTL, 3, 1, 0), |
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135 | 151 | SOC_SINGLE("Auto-Mute Switch", CS42L51_DAC_CTL, 2, 1, 0), |
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136 | 152 | SOC_SINGLE("Soft Ramp Switch", CS42L51_DAC_CTL, 1, 1, 0), |
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137 | 153 | SOC_SINGLE("Zero Cross Switch", CS42L51_DAC_CTL, 0, 0, 0), |
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138 | 154 | SOC_DOUBLE_TLV("Mic Boost Volume", |
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139 | 155 | CS42L51_MIC_CTL, 0, 1, 1, 0, boost_tlv), |
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| 156 | + SOC_DOUBLE_TLV("ADC Boost Volume", |
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| 157 | + CS42L51_MIC_CTL, 5, 6, 1, 0, adc_boost_tlv), |
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140 | 158 | SOC_SINGLE_TLV("Bass Volume", CS42L51_TONE_CTL, 0, 0xf, 1, tone_tlv), |
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141 | 159 | SOC_SINGLE_TLV("Treble Volume", CS42L51_TONE_CTL, 4, 0xf, 1, tone_tlv), |
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142 | 160 | SOC_ENUM_EXT("PCM channel mixer", |
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.. | .. |
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193 | 211 | SOC_DAPM_ENUM("Route", cs42l51_adcr_mux_enum); |
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194 | 212 | |
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195 | 213 | static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { |
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196 | | - SND_SOC_DAPM_MICBIAS("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1), |
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| 214 | + SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1, NULL, |
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| 215 | + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), |
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197 | 216 | SND_SOC_DAPM_PGA_E("Left PGA", CS42L51_POWER_CTL1, 3, 1, NULL, 0, |
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198 | 217 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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199 | 218 | SND_SOC_DAPM_PGA_E("Right PGA", CS42L51_POWER_CTL1, 4, 1, NULL, 0, |
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.. | .. |
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204 | 223 | SND_SOC_DAPM_ADC_E("Right ADC", "Right HiFi Capture", |
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205 | 224 | CS42L51_POWER_CTL1, 2, 1, |
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206 | 225 | cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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207 | | - SND_SOC_DAPM_DAC_E("Left DAC", "Left HiFi Playback", |
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208 | | - CS42L51_POWER_CTL1, 5, 1, |
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209 | | - cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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210 | | - SND_SOC_DAPM_DAC_E("Right DAC", "Right HiFi Playback", |
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211 | | - CS42L51_POWER_CTL1, 6, 1, |
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212 | | - cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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| 226 | + SND_SOC_DAPM_DAC_E("Left DAC", NULL, CS42L51_POWER_CTL1, 5, 1, |
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| 227 | + cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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| 228 | + SND_SOC_DAPM_DAC_E("Right DAC", NULL, CS42L51_POWER_CTL1, 6, 1, |
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| 229 | + cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), |
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213 | 230 | |
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214 | 231 | /* analog/mic */ |
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215 | 232 | SND_SOC_DAPM_INPUT("AIN1L"), |
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.. | .. |
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237 | 254 | &cs42l51_adcr_mux_controls), |
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238 | 255 | }; |
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239 | 256 | |
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| 257 | +static int mclk_event(struct snd_soc_dapm_widget *w, |
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| 258 | + struct snd_kcontrol *kcontrol, int event) |
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| 259 | +{ |
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| 260 | + struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm); |
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| 261 | + struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(comp); |
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| 262 | + |
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| 263 | + switch (event) { |
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| 264 | + case SND_SOC_DAPM_PRE_PMU: |
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| 265 | + return clk_prepare_enable(cs42l51->mclk_handle); |
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| 266 | + case SND_SOC_DAPM_POST_PMD: |
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| 267 | + /* Delay mclk shutdown to fulfill power-down sequence requirements */ |
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| 268 | + msleep(20); |
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| 269 | + clk_disable_unprepare(cs42l51->mclk_handle); |
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| 270 | + break; |
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| 271 | + } |
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| 272 | + |
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| 273 | + return 0; |
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| 274 | +} |
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| 275 | + |
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| 276 | +static const struct snd_soc_dapm_widget cs42l51_dapm_mclk_widgets[] = { |
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| 277 | + SND_SOC_DAPM_SUPPLY("MCLK", SND_SOC_NOPM, 0, 0, mclk_event, |
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| 278 | + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), |
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| 279 | +}; |
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| 280 | + |
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240 | 281 | static const struct snd_soc_dapm_route cs42l51_routes[] = { |
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241 | 282 | {"HPL", NULL, "Left DAC"}, |
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242 | 283 | {"HPR", NULL, "Right DAC"}, |
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| 284 | + |
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| 285 | + {"Right DAC", NULL, "DAC Mux"}, |
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| 286 | + {"Left DAC", NULL, "DAC Mux"}, |
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| 287 | + |
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| 288 | + {"DAC Mux", "Direct PCM", "Playback"}, |
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| 289 | + {"DAC Mux", "DSP PCM", "Playback"}, |
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243 | 290 | |
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244 | 291 | {"Left ADC", NULL, "Left PGA"}, |
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245 | 292 | {"Right ADC", NULL, "Right PGA"}, |
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.. | .. |
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323 | 370 | { 256, CS42L51_DSM_MODE, 1 }, { 384, CS42L51_DSM_MODE, 1 }, |
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324 | 371 | }; |
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325 | 372 | |
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| 373 | +/* |
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| 374 | + * Master mode mclk/fs ratios. |
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| 375 | + * Recommended configurations are SSM for 4-50khz and DSM for 50-100kHz ranges |
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| 376 | + * The table below provides support of following ratios: |
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| 377 | + * 128: SSM (%128) with div2 disabled |
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| 378 | + * 256: SSM (%128) with div2 enabled |
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| 379 | + * In both cases, if sampling rate is above 50kHz, SSM is overridden |
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| 380 | + * with DSM (%128) configuration |
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| 381 | + */ |
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| 382 | +static struct cs42l51_ratios master_ratios[] = { |
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| 383 | + { 128, CS42L51_SSM_MODE, 0 }, { 256, CS42L51_SSM_MODE, 1 }, |
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| 384 | +}; |
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| 385 | + |
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326 | 386 | static int cs42l51_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
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327 | 387 | int clk_id, unsigned int freq, int dir) |
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328 | 388 | { |
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.. | .. |
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345 | 405 | unsigned int ratio; |
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346 | 406 | struct cs42l51_ratios *ratios = NULL; |
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347 | 407 | int nr_ratios = 0; |
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348 | | - int intf_ctl, power_ctl, fmt; |
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| 408 | + int intf_ctl, power_ctl, fmt, mode; |
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349 | 409 | |
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350 | 410 | switch (cs42l51->func) { |
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351 | 411 | case MODE_MASTER: |
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352 | | - return -EINVAL; |
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| 412 | + ratios = master_ratios; |
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| 413 | + nr_ratios = ARRAY_SIZE(master_ratios); |
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| 414 | + break; |
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353 | 415 | case MODE_SLAVE: |
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354 | 416 | ratios = slave_ratios; |
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355 | 417 | nr_ratios = ARRAY_SIZE(slave_ratios); |
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.. | .. |
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374 | 436 | return -EINVAL; |
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375 | 437 | } |
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376 | 438 | |
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377 | | - intf_ctl = snd_soc_component_read32(component, CS42L51_INTF_CTL); |
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378 | | - power_ctl = snd_soc_component_read32(component, CS42L51_MIC_POWER_CTL); |
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| 439 | + intf_ctl = snd_soc_component_read(component, CS42L51_INTF_CTL); |
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| 440 | + power_ctl = snd_soc_component_read(component, CS42L51_MIC_POWER_CTL); |
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379 | 441 | |
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380 | 442 | intf_ctl &= ~(CS42L51_INTF_CTL_MASTER | CS42L51_INTF_CTL_ADC_I2S |
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381 | 443 | | CS42L51_INTF_CTL_DAC_FORMAT(7)); |
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.. | .. |
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385 | 447 | switch (cs42l51->func) { |
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386 | 448 | case MODE_MASTER: |
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387 | 449 | intf_ctl |= CS42L51_INTF_CTL_MASTER; |
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388 | | - power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); |
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| 450 | + mode = ratios[i].speed_mode; |
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| 451 | + /* Force DSM mode if sampling rate is above 50kHz */ |
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| 452 | + if (rate > 50000) |
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| 453 | + mode = CS42L51_DSM_MODE; |
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| 454 | + power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(mode); |
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| 455 | + /* |
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| 456 | + * Auto detect mode is not applicable for master mode and has to |
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| 457 | + * be disabled. Otherwise SPEED[1:0] bits will be ignored. |
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| 458 | + */ |
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| 459 | + power_ctl &= ~CS42L51_MIC_POWER_CTL_AUTO; |
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389 | 460 | break; |
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390 | 461 | case MODE_SLAVE: |
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391 | 462 | power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); |
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.. | .. |
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442 | 513 | return 0; |
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443 | 514 | } |
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444 | 515 | |
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445 | | -static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute) |
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| 516 | +static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute, int direction) |
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446 | 517 | { |
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447 | 518 | struct snd_soc_component *component = dai->component; |
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448 | 519 | int reg; |
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449 | 520 | int mask = CS42L51_DAC_OUT_CTL_DACA_MUTE|CS42L51_DAC_OUT_CTL_DACB_MUTE; |
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450 | 521 | |
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451 | | - reg = snd_soc_component_read32(component, CS42L51_DAC_OUT_CTL); |
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| 522 | + reg = snd_soc_component_read(component, CS42L51_DAC_OUT_CTL); |
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452 | 523 | |
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453 | 524 | if (mute) |
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454 | 525 | reg |= mask; |
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.. | .. |
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458 | 529 | return snd_soc_component_write(component, CS42L51_DAC_OUT_CTL, reg); |
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459 | 530 | } |
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460 | 531 | |
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| 532 | +static int cs42l51_of_xlate_dai_id(struct snd_soc_component *component, |
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| 533 | + struct device_node *endpoint) |
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| 534 | +{ |
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| 535 | + /* return dai id 0, whatever the endpoint index */ |
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| 536 | + return 0; |
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| 537 | +} |
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| 538 | + |
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461 | 539 | static const struct snd_soc_dai_ops cs42l51_dai_ops = { |
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462 | 540 | .hw_params = cs42l51_hw_params, |
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463 | 541 | .set_sysclk = cs42l51_set_dai_sysclk, |
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464 | 542 | .set_fmt = cs42l51_set_dai_fmt, |
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465 | | - .digital_mute = cs42l51_dai_mute, |
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| 543 | + .mute_stream = cs42l51_dai_mute, |
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| 544 | + .no_capture_mute = 1, |
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466 | 545 | }; |
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467 | 546 | |
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468 | 547 | static struct snd_soc_dai_driver cs42l51_dai = { |
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.. | .. |
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487 | 566 | static int cs42l51_component_probe(struct snd_soc_component *component) |
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488 | 567 | { |
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489 | 568 | int ret, reg; |
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| 569 | + struct snd_soc_dapm_context *dapm; |
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| 570 | + struct cs42l51_private *cs42l51; |
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| 571 | + |
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| 572 | + cs42l51 = snd_soc_component_get_drvdata(component); |
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| 573 | + dapm = snd_soc_component_get_dapm(component); |
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| 574 | + |
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| 575 | + if (cs42l51->mclk_handle) |
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| 576 | + snd_soc_dapm_new_controls(dapm, cs42l51_dapm_mclk_widgets, 1); |
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490 | 577 | |
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491 | 578 | /* |
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492 | 579 | * DAC configuration |
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.. | .. |
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512 | 599 | .num_dapm_widgets = ARRAY_SIZE(cs42l51_dapm_widgets), |
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513 | 600 | .dapm_routes = cs42l51_routes, |
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514 | 601 | .num_dapm_routes = ARRAY_SIZE(cs42l51_routes), |
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| 602 | + .of_xlate_dai_id = cs42l51_of_xlate_dai_id, |
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515 | 603 | .idle_bias_on = 1, |
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516 | 604 | .use_pmdown_time = 1, |
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517 | 605 | .endianness = 1, |
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518 | 606 | .non_legacy_dai_naming = 1, |
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519 | 607 | }; |
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520 | 608 | |
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| 609 | +static bool cs42l51_writeable_reg(struct device *dev, unsigned int reg) |
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| 610 | +{ |
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| 611 | + switch (reg) { |
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| 612 | + case CS42L51_POWER_CTL1: |
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| 613 | + case CS42L51_MIC_POWER_CTL: |
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| 614 | + case CS42L51_INTF_CTL: |
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| 615 | + case CS42L51_MIC_CTL: |
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| 616 | + case CS42L51_ADC_CTL: |
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| 617 | + case CS42L51_ADC_INPUT: |
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| 618 | + case CS42L51_DAC_OUT_CTL: |
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| 619 | + case CS42L51_DAC_CTL: |
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| 620 | + case CS42L51_ALC_PGA_CTL: |
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| 621 | + case CS42L51_ALC_PGB_CTL: |
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| 622 | + case CS42L51_ADCA_ATT: |
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| 623 | + case CS42L51_ADCB_ATT: |
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| 624 | + case CS42L51_ADCA_VOL: |
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| 625 | + case CS42L51_ADCB_VOL: |
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| 626 | + case CS42L51_PCMA_VOL: |
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| 627 | + case CS42L51_PCMB_VOL: |
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| 628 | + case CS42L51_BEEP_FREQ: |
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| 629 | + case CS42L51_BEEP_VOL: |
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| 630 | + case CS42L51_BEEP_CONF: |
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| 631 | + case CS42L51_TONE_CTL: |
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| 632 | + case CS42L51_AOUTA_VOL: |
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| 633 | + case CS42L51_AOUTB_VOL: |
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| 634 | + case CS42L51_PCM_MIXER: |
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| 635 | + case CS42L51_LIMIT_THRES_DIS: |
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| 636 | + case CS42L51_LIMIT_REL: |
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| 637 | + case CS42L51_LIMIT_ATT: |
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| 638 | + case CS42L51_ALC_EN: |
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| 639 | + case CS42L51_ALC_REL: |
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| 640 | + case CS42L51_ALC_THRES: |
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| 641 | + case CS42L51_NOISE_CONF: |
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| 642 | + case CS42L51_CHARGE_FREQ: |
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| 643 | + return true; |
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| 644 | + default: |
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| 645 | + return false; |
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| 646 | + } |
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| 647 | +} |
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| 648 | + |
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| 649 | +static bool cs42l51_volatile_reg(struct device *dev, unsigned int reg) |
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| 650 | +{ |
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| 651 | + switch (reg) { |
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| 652 | + case CS42L51_STATUS: |
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| 653 | + return true; |
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| 654 | + default: |
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| 655 | + return false; |
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| 656 | + } |
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| 657 | +} |
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| 658 | + |
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| 659 | +static bool cs42l51_readable_reg(struct device *dev, unsigned int reg) |
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| 660 | +{ |
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| 661 | + switch (reg) { |
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| 662 | + case CS42L51_CHIP_REV_ID: |
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| 663 | + case CS42L51_POWER_CTL1: |
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| 664 | + case CS42L51_MIC_POWER_CTL: |
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| 665 | + case CS42L51_INTF_CTL: |
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| 666 | + case CS42L51_MIC_CTL: |
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| 667 | + case CS42L51_ADC_CTL: |
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| 668 | + case CS42L51_ADC_INPUT: |
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| 669 | + case CS42L51_DAC_OUT_CTL: |
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| 670 | + case CS42L51_DAC_CTL: |
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| 671 | + case CS42L51_ALC_PGA_CTL: |
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| 672 | + case CS42L51_ALC_PGB_CTL: |
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| 673 | + case CS42L51_ADCA_ATT: |
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| 674 | + case CS42L51_ADCB_ATT: |
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| 675 | + case CS42L51_ADCA_VOL: |
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| 676 | + case CS42L51_ADCB_VOL: |
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| 677 | + case CS42L51_PCMA_VOL: |
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| 678 | + case CS42L51_PCMB_VOL: |
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| 679 | + case CS42L51_BEEP_FREQ: |
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| 680 | + case CS42L51_BEEP_VOL: |
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| 681 | + case CS42L51_BEEP_CONF: |
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| 682 | + case CS42L51_TONE_CTL: |
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| 683 | + case CS42L51_AOUTA_VOL: |
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| 684 | + case CS42L51_AOUTB_VOL: |
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| 685 | + case CS42L51_PCM_MIXER: |
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| 686 | + case CS42L51_LIMIT_THRES_DIS: |
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| 687 | + case CS42L51_LIMIT_REL: |
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| 688 | + case CS42L51_LIMIT_ATT: |
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| 689 | + case CS42L51_ALC_EN: |
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| 690 | + case CS42L51_ALC_REL: |
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| 691 | + case CS42L51_ALC_THRES: |
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| 692 | + case CS42L51_NOISE_CONF: |
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| 693 | + case CS42L51_STATUS: |
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| 694 | + case CS42L51_CHARGE_FREQ: |
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| 695 | + return true; |
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| 696 | + default: |
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| 697 | + return false; |
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| 698 | + } |
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| 699 | +} |
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| 700 | + |
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521 | 701 | const struct regmap_config cs42l51_regmap = { |
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| 702 | + .reg_bits = 8, |
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| 703 | + .reg_stride = 1, |
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| 704 | + .val_bits = 8, |
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| 705 | + .use_single_write = true, |
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| 706 | + .readable_reg = cs42l51_readable_reg, |
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| 707 | + .volatile_reg = cs42l51_volatile_reg, |
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| 708 | + .writeable_reg = cs42l51_writeable_reg, |
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522 | 709 | .max_register = CS42L51_CHARGE_FREQ, |
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523 | 710 | .cache_type = REGCACHE_RBTREE, |
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524 | 711 | }; |
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.. | .. |
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528 | 715 | { |
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529 | 716 | struct cs42l51_private *cs42l51; |
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530 | 717 | unsigned int val; |
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531 | | - int ret; |
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| 718 | + int ret, i; |
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532 | 719 | |
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533 | 720 | if (IS_ERR(regmap)) |
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534 | 721 | return PTR_ERR(regmap); |
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.. | .. |
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539 | 726 | return -ENOMEM; |
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540 | 727 | |
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541 | 728 | dev_set_drvdata(dev, cs42l51); |
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| 729 | + cs42l51->regmap = regmap; |
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| 730 | + |
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| 731 | + cs42l51->mclk_handle = devm_clk_get(dev, "MCLK"); |
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| 732 | + if (IS_ERR(cs42l51->mclk_handle)) { |
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| 733 | + if (PTR_ERR(cs42l51->mclk_handle) != -ENOENT) |
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| 734 | + return PTR_ERR(cs42l51->mclk_handle); |
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| 735 | + cs42l51->mclk_handle = NULL; |
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| 736 | + } |
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| 737 | + |
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| 738 | + for (i = 0; i < ARRAY_SIZE(cs42l51->supplies); i++) |
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| 739 | + cs42l51->supplies[i].supply = cs42l51_supply_names[i]; |
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| 740 | + |
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| 741 | + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs42l51->supplies), |
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| 742 | + cs42l51->supplies); |
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| 743 | + if (ret != 0) { |
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| 744 | + dev_err(dev, "Failed to request supplies: %d\n", ret); |
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| 745 | + return ret; |
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| 746 | + } |
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| 747 | + |
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| 748 | + ret = regulator_bulk_enable(ARRAY_SIZE(cs42l51->supplies), |
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| 749 | + cs42l51->supplies); |
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| 750 | + if (ret != 0) { |
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| 751 | + dev_err(dev, "Failed to enable supplies: %d\n", ret); |
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| 752 | + return ret; |
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| 753 | + } |
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| 754 | + |
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| 755 | + cs42l51->reset_gpio = devm_gpiod_get_optional(dev, "reset", |
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| 756 | + GPIOD_OUT_LOW); |
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| 757 | + if (IS_ERR(cs42l51->reset_gpio)) |
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| 758 | + return PTR_ERR(cs42l51->reset_gpio); |
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| 759 | + |
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| 760 | + if (cs42l51->reset_gpio) { |
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| 761 | + dev_dbg(dev, "Release reset gpio\n"); |
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| 762 | + gpiod_set_value_cansleep(cs42l51->reset_gpio, 0); |
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| 763 | + mdelay(2); |
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| 764 | + } |
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542 | 765 | |
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543 | 766 | /* Verify that we have a CS42L51 */ |
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544 | 767 | ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val); |
---|
.. | .. |
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558 | 781 | |
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559 | 782 | ret = devm_snd_soc_register_component(dev, |
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560 | 783 | &soc_component_device_cs42l51, &cs42l51_dai, 1); |
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| 784 | + if (ret < 0) |
---|
| 785 | + goto error; |
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| 786 | + |
---|
| 787 | + return 0; |
---|
| 788 | + |
---|
561 | 789 | error: |
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| 790 | + regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), |
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| 791 | + cs42l51->supplies); |
---|
562 | 792 | return ret; |
---|
563 | 793 | } |
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564 | 794 | EXPORT_SYMBOL_GPL(cs42l51_probe); |
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565 | 795 | |
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| 796 | +int cs42l51_remove(struct device *dev) |
---|
| 797 | +{ |
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| 798 | + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); |
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| 799 | + |
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| 800 | + gpiod_set_value_cansleep(cs42l51->reset_gpio, 1); |
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| 801 | + |
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| 802 | + return regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), |
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| 803 | + cs42l51->supplies); |
---|
| 804 | +} |
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| 805 | +EXPORT_SYMBOL_GPL(cs42l51_remove); |
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| 806 | + |
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| 807 | +int __maybe_unused cs42l51_suspend(struct device *dev) |
---|
| 808 | +{ |
---|
| 809 | + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); |
---|
| 810 | + |
---|
| 811 | + regcache_cache_only(cs42l51->regmap, true); |
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| 812 | + regcache_mark_dirty(cs42l51->regmap); |
---|
| 813 | + |
---|
| 814 | + return 0; |
---|
| 815 | +} |
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| 816 | +EXPORT_SYMBOL_GPL(cs42l51_suspend); |
---|
| 817 | + |
---|
| 818 | +int __maybe_unused cs42l51_resume(struct device *dev) |
---|
| 819 | +{ |
---|
| 820 | + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); |
---|
| 821 | + |
---|
| 822 | + regcache_cache_only(cs42l51->regmap, false); |
---|
| 823 | + |
---|
| 824 | + return regcache_sync(cs42l51->regmap); |
---|
| 825 | +} |
---|
| 826 | +EXPORT_SYMBOL_GPL(cs42l51_resume); |
---|
| 827 | + |
---|
566 | 828 | const struct of_device_id cs42l51_of_match[] = { |
---|
567 | 829 | { .compatible = "cirrus,cs42l51", }, |
---|
568 | 830 | { } |
---|