167b22517SAlexander Sverdlin /* 267b22517SAlexander Sverdlin * CS4271 ASoC codec driver 367b22517SAlexander Sverdlin * 467b22517SAlexander Sverdlin * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru> 567b22517SAlexander Sverdlin * 667b22517SAlexander Sverdlin * This program is free software; you can redistribute it and/or 767b22517SAlexander Sverdlin * modify it under the terms of the GNU General Public License 867b22517SAlexander Sverdlin * as published by the Free Software Foundation; either version 2 967b22517SAlexander Sverdlin * of the License, or (at your option) any later version. 1067b22517SAlexander Sverdlin * 1167b22517SAlexander Sverdlin * This program is distributed in the hope that it will be useful, 1267b22517SAlexander Sverdlin * but WITHOUT ANY WARRANTY; without even the implied warranty of 1367b22517SAlexander Sverdlin * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1467b22517SAlexander Sverdlin * GNU General Public License for more details. 1567b22517SAlexander Sverdlin * 1667b22517SAlexander Sverdlin * This driver support CS4271 codec being master or slave, working 1767b22517SAlexander Sverdlin * in control port mode, connected either via SPI or I2C. 1867b22517SAlexander Sverdlin * The data format accepted is I2S or left-justified. 1967b22517SAlexander Sverdlin * DAPM support not implemented. 2067b22517SAlexander Sverdlin */ 2167b22517SAlexander Sverdlin 2267b22517SAlexander Sverdlin #include <linux/module.h> 2367b22517SAlexander Sverdlin #include <linux/slab.h> 2467b22517SAlexander Sverdlin #include <linux/delay.h> 2567b22517SAlexander Sverdlin #include <linux/gpio.h> 2667b22517SAlexander Sverdlin #include <linux/i2c.h> 2767b22517SAlexander Sverdlin #include <linux/spi/spi.h> 28a7ea1b72SSachin Kamat #include <linux/of.h> 29a31ebc34SDaniel Mack #include <linux/of_device.h> 30a31ebc34SDaniel Mack #include <linux/of_gpio.h> 31a31ebc34SDaniel Mack #include <sound/pcm.h> 32a31ebc34SDaniel Mack #include <sound/soc.h> 33a31ebc34SDaniel Mack #include <sound/tlv.h> 3467b22517SAlexander Sverdlin #include <sound/cs4271.h> 3567b22517SAlexander Sverdlin 3667b22517SAlexander Sverdlin #define CS4271_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ 3767b22517SAlexander Sverdlin SNDRV_PCM_FMTBIT_S24_LE | \ 3867b22517SAlexander Sverdlin SNDRV_PCM_FMTBIT_S32_LE) 39383f8465SAlexander Sverdlin #define CS4271_PCM_RATES SNDRV_PCM_RATE_8000_192000 4067b22517SAlexander Sverdlin 4167b22517SAlexander Sverdlin /* 4267b22517SAlexander Sverdlin * CS4271 registers 4367b22517SAlexander Sverdlin */ 441b1861eaSDaniel Mack #define CS4271_MODE1 0x01 /* Mode Control 1 */ 451b1861eaSDaniel Mack #define CS4271_DACCTL 0x02 /* DAC Control */ 461b1861eaSDaniel Mack #define CS4271_DACVOL 0x03 /* DAC Volume & Mixing Control */ 471b1861eaSDaniel Mack #define CS4271_VOLA 0x04 /* DAC Channel A Volume Control */ 481b1861eaSDaniel Mack #define CS4271_VOLB 0x05 /* DAC Channel B Volume Control */ 491b1861eaSDaniel Mack #define CS4271_ADCCTL 0x06 /* ADC Control */ 501b1861eaSDaniel Mack #define CS4271_MODE2 0x07 /* Mode Control 2 */ 511b1861eaSDaniel Mack #define CS4271_CHIPID 0x08 /* Chip ID */ 5267b22517SAlexander Sverdlin 5367b22517SAlexander Sverdlin #define CS4271_FIRSTREG CS4271_MODE1 5467b22517SAlexander Sverdlin #define CS4271_LASTREG CS4271_MODE2 5567b22517SAlexander Sverdlin #define CS4271_NR_REGS ((CS4271_LASTREG & 0xFF) + 1) 5667b22517SAlexander Sverdlin 5767b22517SAlexander Sverdlin /* Bit masks for the CS4271 registers */ 5867b22517SAlexander Sverdlin #define CS4271_MODE1_MODE_MASK 0xC0 5967b22517SAlexander Sverdlin #define CS4271_MODE1_MODE_1X 0x00 6067b22517SAlexander Sverdlin #define CS4271_MODE1_MODE_2X 0x80 6167b22517SAlexander Sverdlin #define CS4271_MODE1_MODE_4X 0xC0 6267b22517SAlexander Sverdlin 6367b22517SAlexander Sverdlin #define CS4271_MODE1_DIV_MASK 0x30 6467b22517SAlexander Sverdlin #define CS4271_MODE1_DIV_1 0x00 6567b22517SAlexander Sverdlin #define CS4271_MODE1_DIV_15 0x10 6667b22517SAlexander Sverdlin #define CS4271_MODE1_DIV_2 0x20 6767b22517SAlexander Sverdlin #define CS4271_MODE1_DIV_3 0x30 6867b22517SAlexander Sverdlin 6967b22517SAlexander Sverdlin #define CS4271_MODE1_MASTER 0x08 7067b22517SAlexander Sverdlin 7167b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_MASK 0x07 7267b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_LJ 0x00 7367b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_I2S 0x01 7467b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_RJ16 0x02 7567b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_RJ24 0x03 7667b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_RJ20 0x04 7767b22517SAlexander Sverdlin #define CS4271_MODE1_DAC_DIF_RJ18 0x05 7867b22517SAlexander Sverdlin 7967b22517SAlexander Sverdlin #define CS4271_DACCTL_AMUTE 0x80 8067b22517SAlexander Sverdlin #define CS4271_DACCTL_IF_SLOW 0x40 8167b22517SAlexander Sverdlin 8267b22517SAlexander Sverdlin #define CS4271_DACCTL_DEM_MASK 0x30 8367b22517SAlexander Sverdlin #define CS4271_DACCTL_DEM_DIS 0x00 8467b22517SAlexander Sverdlin #define CS4271_DACCTL_DEM_441 0x10 8567b22517SAlexander Sverdlin #define CS4271_DACCTL_DEM_48 0x20 8667b22517SAlexander Sverdlin #define CS4271_DACCTL_DEM_32 0x30 8767b22517SAlexander Sverdlin 8867b22517SAlexander Sverdlin #define CS4271_DACCTL_SVRU 0x08 8967b22517SAlexander Sverdlin #define CS4271_DACCTL_SRD 0x04 9067b22517SAlexander Sverdlin #define CS4271_DACCTL_INVA 0x02 9167b22517SAlexander Sverdlin #define CS4271_DACCTL_INVB 0x01 9267b22517SAlexander Sverdlin 9367b22517SAlexander Sverdlin #define CS4271_DACVOL_BEQUA 0x40 9467b22517SAlexander Sverdlin #define CS4271_DACVOL_SOFT 0x20 9567b22517SAlexander Sverdlin #define CS4271_DACVOL_ZEROC 0x10 9667b22517SAlexander Sverdlin 9767b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_MASK 0x0F 9867b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_M_M 0x00 9967b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_M_BR 0x01 10067b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_M_BL 0x02 10167b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_M_BLR2 0x03 10267b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AR_M 0x04 10367b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AR_BR 0x05 10467b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AR_BL 0x06 10567b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AR_BLR2 0x07 10667b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AL_M 0x08 10767b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AL_BR 0x09 10867b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AL_BL 0x0A 10967b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_AL_BLR2 0x0B 11067b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_ALR2_M 0x0C 11167b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_ALR2_BR 0x0D 11267b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_ALR2_BL 0x0E 11367b22517SAlexander Sverdlin #define CS4271_DACVOL_ATAPI_ALR2_BLR2 0x0F 11467b22517SAlexander Sverdlin 11567b22517SAlexander Sverdlin #define CS4271_VOLA_MUTE 0x80 11667b22517SAlexander Sverdlin #define CS4271_VOLA_VOL_MASK 0x7F 11767b22517SAlexander Sverdlin #define CS4271_VOLB_MUTE 0x80 11867b22517SAlexander Sverdlin #define CS4271_VOLB_VOL_MASK 0x7F 11967b22517SAlexander Sverdlin 12067b22517SAlexander Sverdlin #define CS4271_ADCCTL_DITHER16 0x20 12167b22517SAlexander Sverdlin 12267b22517SAlexander Sverdlin #define CS4271_ADCCTL_ADC_DIF_MASK 0x10 12367b22517SAlexander Sverdlin #define CS4271_ADCCTL_ADC_DIF_LJ 0x00 12467b22517SAlexander Sverdlin #define CS4271_ADCCTL_ADC_DIF_I2S 0x10 12567b22517SAlexander Sverdlin 12667b22517SAlexander Sverdlin #define CS4271_ADCCTL_MUTEA 0x08 12767b22517SAlexander Sverdlin #define CS4271_ADCCTL_MUTEB 0x04 12867b22517SAlexander Sverdlin #define CS4271_ADCCTL_HPFDA 0x02 12967b22517SAlexander Sverdlin #define CS4271_ADCCTL_HPFDB 0x01 13067b22517SAlexander Sverdlin 13167b22517SAlexander Sverdlin #define CS4271_MODE2_LOOP 0x10 13267b22517SAlexander Sverdlin #define CS4271_MODE2_MUTECAEQUB 0x08 13367b22517SAlexander Sverdlin #define CS4271_MODE2_FREEZE 0x04 13467b22517SAlexander Sverdlin #define CS4271_MODE2_CPEN 0x02 13567b22517SAlexander Sverdlin #define CS4271_MODE2_PDN 0x01 13667b22517SAlexander Sverdlin 13767b22517SAlexander Sverdlin #define CS4271_CHIPID_PART_MASK 0xF0 13867b22517SAlexander Sverdlin #define CS4271_CHIPID_REV_MASK 0x0F 13967b22517SAlexander Sverdlin 14067b22517SAlexander Sverdlin /* 14167b22517SAlexander Sverdlin * Default CS4271 power-up configuration 14267b22517SAlexander Sverdlin * Array contains non-existing in hw register at address 0 14367b22517SAlexander Sverdlin * Array do not include Chip ID, as codec driver does not use 14467b22517SAlexander Sverdlin * registers read operations at all 14567b22517SAlexander Sverdlin */ 1461b1861eaSDaniel Mack static const struct reg_default cs4271_reg_defaults[] = { 1471b1861eaSDaniel Mack { CS4271_MODE1, 0, }, 1481b1861eaSDaniel Mack { CS4271_DACCTL, CS4271_DACCTL_AMUTE, }, 1491b1861eaSDaniel Mack { CS4271_DACVOL, CS4271_DACVOL_SOFT | CS4271_DACVOL_ATAPI_AL_BR, }, 1501b1861eaSDaniel Mack { CS4271_VOLA, 0, }, 1511b1861eaSDaniel Mack { CS4271_VOLB, 0, }, 1521b1861eaSDaniel Mack { CS4271_ADCCTL, 0, }, 1531b1861eaSDaniel Mack { CS4271_MODE2, 0, }, 15467b22517SAlexander Sverdlin }; 15567b22517SAlexander Sverdlin 1561b1861eaSDaniel Mack static bool cs4271_volatile_reg(struct device *dev, unsigned int reg) 1571b1861eaSDaniel Mack { 1581b1861eaSDaniel Mack return reg == CS4271_CHIPID; 1591b1861eaSDaniel Mack } 1601b1861eaSDaniel Mack 16167b22517SAlexander Sverdlin struct cs4271_private { 16267b22517SAlexander Sverdlin /* SND_SOC_I2C or SND_SOC_SPI */ 16367b22517SAlexander Sverdlin unsigned int mclk; 16467b22517SAlexander Sverdlin bool master; 16567b22517SAlexander Sverdlin bool deemph; 1661b1861eaSDaniel Mack struct regmap *regmap; 16767b22517SAlexander Sverdlin /* Current sample rate for de-emphasis control */ 16867b22517SAlexander Sverdlin int rate; 16967b22517SAlexander Sverdlin /* GPIO driving Reset pin, if any */ 17067b22517SAlexander Sverdlin int gpio_nreset; 17167b22517SAlexander Sverdlin /* GPIO that disable serial bus, if any */ 17267b22517SAlexander Sverdlin int gpio_disable; 173fd23fb9fSDaniel Mack /* enable soft reset workaround */ 174fd23fb9fSDaniel Mack bool enable_soft_reset; 17567b22517SAlexander Sverdlin }; 17667b22517SAlexander Sverdlin 1772e7fb942SMark Brown static const struct snd_soc_dapm_widget cs4271_dapm_widgets[] = { 1782e7fb942SMark Brown SND_SOC_DAPM_INPUT("AINA"), 1792e7fb942SMark Brown SND_SOC_DAPM_INPUT("AINB"), 1802e7fb942SMark Brown 1812e7fb942SMark Brown SND_SOC_DAPM_OUTPUT("AOUTA+"), 1822e7fb942SMark Brown SND_SOC_DAPM_OUTPUT("AOUTA-"), 1832e7fb942SMark Brown SND_SOC_DAPM_OUTPUT("AOUTB+"), 1842e7fb942SMark Brown SND_SOC_DAPM_OUTPUT("AOUTB-"), 1852e7fb942SMark Brown }; 1862e7fb942SMark Brown 1872e7fb942SMark Brown static const struct snd_soc_dapm_route cs4271_dapm_routes[] = { 1882e7fb942SMark Brown { "Capture", NULL, "AINA" }, 1892e7fb942SMark Brown { "Capture", NULL, "AINB" }, 1902e7fb942SMark Brown 1912e7fb942SMark Brown { "AOUTA+", NULL, "Playback" }, 1922e7fb942SMark Brown { "AOUTA-", NULL, "Playback" }, 1932e7fb942SMark Brown { "AOUTB+", NULL, "Playback" }, 1942e7fb942SMark Brown { "AOUTB-", NULL, "Playback" }, 1952e7fb942SMark Brown }; 1962e7fb942SMark Brown 19767b22517SAlexander Sverdlin /* 19867b22517SAlexander Sverdlin * @freq is the desired MCLK rate 19967b22517SAlexander Sverdlin * MCLK rate should (c) be the sample rate, multiplied by one of the 20067b22517SAlexander Sverdlin * ratios listed in cs4271_mclk_fs_ratios table 20167b22517SAlexander Sverdlin */ 20267b22517SAlexander Sverdlin static int cs4271_set_dai_sysclk(struct snd_soc_dai *codec_dai, 20367b22517SAlexander Sverdlin int clk_id, unsigned int freq, int dir) 20467b22517SAlexander Sverdlin { 20567b22517SAlexander Sverdlin struct snd_soc_codec *codec = codec_dai->codec; 20667b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 20767b22517SAlexander Sverdlin 20867b22517SAlexander Sverdlin cs4271->mclk = freq; 20967b22517SAlexander Sverdlin return 0; 21067b22517SAlexander Sverdlin } 21167b22517SAlexander Sverdlin 21267b22517SAlexander Sverdlin static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai, 21367b22517SAlexander Sverdlin unsigned int format) 21467b22517SAlexander Sverdlin { 21567b22517SAlexander Sverdlin struct snd_soc_codec *codec = codec_dai->codec; 21667b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 21767b22517SAlexander Sverdlin unsigned int val = 0; 2180d42e6e7SAlexander Sverdlin int ret; 21967b22517SAlexander Sverdlin 22067b22517SAlexander Sverdlin switch (format & SND_SOC_DAIFMT_MASTER_MASK) { 22167b22517SAlexander Sverdlin case SND_SOC_DAIFMT_CBS_CFS: 22267b22517SAlexander Sverdlin cs4271->master = 0; 22367b22517SAlexander Sverdlin break; 22467b22517SAlexander Sverdlin case SND_SOC_DAIFMT_CBM_CFM: 22567b22517SAlexander Sverdlin cs4271->master = 1; 22667b22517SAlexander Sverdlin val |= CS4271_MODE1_MASTER; 22767b22517SAlexander Sverdlin break; 22867b22517SAlexander Sverdlin default: 22967b22517SAlexander Sverdlin dev_err(codec->dev, "Invalid DAI format\n"); 23067b22517SAlexander Sverdlin return -EINVAL; 23167b22517SAlexander Sverdlin } 23267b22517SAlexander Sverdlin 23367b22517SAlexander Sverdlin switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { 23467b22517SAlexander Sverdlin case SND_SOC_DAIFMT_LEFT_J: 23567b22517SAlexander Sverdlin val |= CS4271_MODE1_DAC_DIF_LJ; 2361b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL, 23767b22517SAlexander Sverdlin CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_LJ); 2380d42e6e7SAlexander Sverdlin if (ret < 0) 2390d42e6e7SAlexander Sverdlin return ret; 24067b22517SAlexander Sverdlin break; 24167b22517SAlexander Sverdlin case SND_SOC_DAIFMT_I2S: 24267b22517SAlexander Sverdlin val |= CS4271_MODE1_DAC_DIF_I2S; 2431b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL, 24467b22517SAlexander Sverdlin CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_I2S); 2450d42e6e7SAlexander Sverdlin if (ret < 0) 2460d42e6e7SAlexander Sverdlin return ret; 24767b22517SAlexander Sverdlin break; 24867b22517SAlexander Sverdlin default: 24967b22517SAlexander Sverdlin dev_err(codec->dev, "Invalid DAI format\n"); 25067b22517SAlexander Sverdlin return -EINVAL; 25167b22517SAlexander Sverdlin } 25267b22517SAlexander Sverdlin 2531b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1, 25467b22517SAlexander Sverdlin CS4271_MODE1_DAC_DIF_MASK | CS4271_MODE1_MASTER, val); 2550d42e6e7SAlexander Sverdlin if (ret < 0) 2560d42e6e7SAlexander Sverdlin return ret; 25767b22517SAlexander Sverdlin return 0; 25867b22517SAlexander Sverdlin } 25967b22517SAlexander Sverdlin 26067b22517SAlexander Sverdlin static int cs4271_deemph[] = {0, 44100, 48000, 32000}; 26167b22517SAlexander Sverdlin 26267b22517SAlexander Sverdlin static int cs4271_set_deemph(struct snd_soc_codec *codec) 26367b22517SAlexander Sverdlin { 26467b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 2650d42e6e7SAlexander Sverdlin int i, ret; 26667b22517SAlexander Sverdlin int val = CS4271_DACCTL_DEM_DIS; 26767b22517SAlexander Sverdlin 26867b22517SAlexander Sverdlin if (cs4271->deemph) { 26967b22517SAlexander Sverdlin /* Find closest de-emphasis freq */ 27067b22517SAlexander Sverdlin val = 1; 27167b22517SAlexander Sverdlin for (i = 2; i < ARRAY_SIZE(cs4271_deemph); i++) 27267b22517SAlexander Sverdlin if (abs(cs4271_deemph[i] - cs4271->rate) < 27367b22517SAlexander Sverdlin abs(cs4271_deemph[val] - cs4271->rate)) 27467b22517SAlexander Sverdlin val = i; 27567b22517SAlexander Sverdlin val <<= 4; 27667b22517SAlexander Sverdlin } 27767b22517SAlexander Sverdlin 2781b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_DACCTL, 27967b22517SAlexander Sverdlin CS4271_DACCTL_DEM_MASK, val); 2800d42e6e7SAlexander Sverdlin if (ret < 0) 2810d42e6e7SAlexander Sverdlin return ret; 2820d42e6e7SAlexander Sverdlin return 0; 28367b22517SAlexander Sverdlin } 28467b22517SAlexander Sverdlin 28567b22517SAlexander Sverdlin static int cs4271_get_deemph(struct snd_kcontrol *kcontrol, 28667b22517SAlexander Sverdlin struct snd_ctl_elem_value *ucontrol) 28767b22517SAlexander Sverdlin { 28867b22517SAlexander Sverdlin struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 28967b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 29067b22517SAlexander Sverdlin 29167b22517SAlexander Sverdlin ucontrol->value.enumerated.item[0] = cs4271->deemph; 29267b22517SAlexander Sverdlin return 0; 29367b22517SAlexander Sverdlin } 29467b22517SAlexander Sverdlin 29567b22517SAlexander Sverdlin static int cs4271_put_deemph(struct snd_kcontrol *kcontrol, 29667b22517SAlexander Sverdlin struct snd_ctl_elem_value *ucontrol) 29767b22517SAlexander Sverdlin { 29867b22517SAlexander Sverdlin struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 29967b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 30067b22517SAlexander Sverdlin 30167b22517SAlexander Sverdlin cs4271->deemph = ucontrol->value.enumerated.item[0]; 30267b22517SAlexander Sverdlin return cs4271_set_deemph(codec); 30367b22517SAlexander Sverdlin } 30467b22517SAlexander Sverdlin 3055c3a12e9SAlexander Sverdlin struct cs4271_clk_cfg { 3065c3a12e9SAlexander Sverdlin bool master; /* codec mode */ 3075c3a12e9SAlexander Sverdlin u8 speed_mode; /* codec speed mode: 1x, 2x, 4x */ 3085c3a12e9SAlexander Sverdlin unsigned short ratio; /* MCLK / sample rate */ 3095c3a12e9SAlexander Sverdlin u8 ratio_mask; /* ratio bit mask for Master mode */ 3105c3a12e9SAlexander Sverdlin }; 3115c3a12e9SAlexander Sverdlin 3125c3a12e9SAlexander Sverdlin static struct cs4271_clk_cfg cs4271_clk_tab[] = { 3135c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_1X, 256, CS4271_MODE1_DIV_1}, 3145c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_1X, 384, CS4271_MODE1_DIV_15}, 3155c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_1X, 512, CS4271_MODE1_DIV_2}, 3165c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_1X, 768, CS4271_MODE1_DIV_3}, 3175c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_2X, 128, CS4271_MODE1_DIV_1}, 3185c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_2X, 192, CS4271_MODE1_DIV_15}, 3195c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_2X, 256, CS4271_MODE1_DIV_2}, 3205c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_2X, 384, CS4271_MODE1_DIV_3}, 3215c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_4X, 64, CS4271_MODE1_DIV_1}, 3225c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_4X, 96, CS4271_MODE1_DIV_15}, 3235c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_4X, 128, CS4271_MODE1_DIV_2}, 3245c3a12e9SAlexander Sverdlin {1, CS4271_MODE1_MODE_4X, 192, CS4271_MODE1_DIV_3}, 3255c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_1X, 256, CS4271_MODE1_DIV_1}, 3265c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_1X, 384, CS4271_MODE1_DIV_1}, 3275c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_1X, 512, CS4271_MODE1_DIV_1}, 3285c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_1X, 768, CS4271_MODE1_DIV_2}, 3295c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_1X, 1024, CS4271_MODE1_DIV_2}, 3305c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_2X, 128, CS4271_MODE1_DIV_1}, 3315c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_2X, 192, CS4271_MODE1_DIV_1}, 3325c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_2X, 256, CS4271_MODE1_DIV_1}, 3335c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_2X, 384, CS4271_MODE1_DIV_2}, 3345c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_2X, 512, CS4271_MODE1_DIV_2}, 3355c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_4X, 64, CS4271_MODE1_DIV_1}, 3365c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_4X, 96, CS4271_MODE1_DIV_1}, 3375c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_4X, 128, CS4271_MODE1_DIV_1}, 3385c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_4X, 192, CS4271_MODE1_DIV_2}, 3395c3a12e9SAlexander Sverdlin {0, CS4271_MODE1_MODE_4X, 256, CS4271_MODE1_DIV_2}, 3405c3a12e9SAlexander Sverdlin }; 3415c3a12e9SAlexander Sverdlin 3425c3a12e9SAlexander Sverdlin #define CS4171_NR_RATIOS ARRAY_SIZE(cs4271_clk_tab) 3435c3a12e9SAlexander Sverdlin 34467b22517SAlexander Sverdlin static int cs4271_hw_params(struct snd_pcm_substream *substream, 34567b22517SAlexander Sverdlin struct snd_pcm_hw_params *params, 34667b22517SAlexander Sverdlin struct snd_soc_dai *dai) 34767b22517SAlexander Sverdlin { 348e6968a17SMark Brown struct snd_soc_codec *codec = dai->codec; 34967b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 3500d42e6e7SAlexander Sverdlin int i, ret; 3510d42e6e7SAlexander Sverdlin unsigned int ratio, val; 35267b22517SAlexander Sverdlin 353fd23fb9fSDaniel Mack if (cs4271->enable_soft_reset) { 354fd23fb9fSDaniel Mack /* 355fd23fb9fSDaniel Mack * Put the codec in soft reset and back again in case it's not 356fd23fb9fSDaniel Mack * currently streaming data. This way of bringing the codec in 357fd23fb9fSDaniel Mack * sync to the current clocks is not explicitly documented in 358fd23fb9fSDaniel Mack * the data sheet, but it seems to work fine, and in contrast 359fd23fb9fSDaniel Mack * to a read hardware reset, we don't have to sync back all 360fd23fb9fSDaniel Mack * registers every time. 361fd23fb9fSDaniel Mack */ 362fd23fb9fSDaniel Mack 363fd23fb9fSDaniel Mack if ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK && 364fd23fb9fSDaniel Mack !dai->capture_active) || 365fd23fb9fSDaniel Mack (substream->stream == SNDRV_PCM_STREAM_CAPTURE && 366fd23fb9fSDaniel Mack !dai->playback_active)) { 3671b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 368fd23fb9fSDaniel Mack CS4271_MODE2_PDN, 369fd23fb9fSDaniel Mack CS4271_MODE2_PDN); 370fd23fb9fSDaniel Mack if (ret < 0) 371fd23fb9fSDaniel Mack return ret; 372fd23fb9fSDaniel Mack 3731b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 374fd23fb9fSDaniel Mack CS4271_MODE2_PDN, 0); 375fd23fb9fSDaniel Mack if (ret < 0) 376fd23fb9fSDaniel Mack return ret; 377fd23fb9fSDaniel Mack } 378fd23fb9fSDaniel Mack } 379fd23fb9fSDaniel Mack 38067b22517SAlexander Sverdlin cs4271->rate = params_rate(params); 3815c3a12e9SAlexander Sverdlin 3825c3a12e9SAlexander Sverdlin /* Configure DAC */ 3835c3a12e9SAlexander Sverdlin if (cs4271->rate < 50000) 3845c3a12e9SAlexander Sverdlin val = CS4271_MODE1_MODE_1X; 3855c3a12e9SAlexander Sverdlin else if (cs4271->rate < 100000) 3865c3a12e9SAlexander Sverdlin val = CS4271_MODE1_MODE_2X; 3875c3a12e9SAlexander Sverdlin else 3885c3a12e9SAlexander Sverdlin val = CS4271_MODE1_MODE_4X; 3895c3a12e9SAlexander Sverdlin 39067b22517SAlexander Sverdlin ratio = cs4271->mclk / cs4271->rate; 39167b22517SAlexander Sverdlin for (i = 0; i < CS4171_NR_RATIOS; i++) 3925c3a12e9SAlexander Sverdlin if ((cs4271_clk_tab[i].master == cs4271->master) && 3935c3a12e9SAlexander Sverdlin (cs4271_clk_tab[i].speed_mode == val) && 3945c3a12e9SAlexander Sverdlin (cs4271_clk_tab[i].ratio == ratio)) 39567b22517SAlexander Sverdlin break; 39667b22517SAlexander Sverdlin 3975c3a12e9SAlexander Sverdlin if (i == CS4171_NR_RATIOS) { 39867b22517SAlexander Sverdlin dev_err(codec->dev, "Invalid sample rate\n"); 39967b22517SAlexander Sverdlin return -EINVAL; 40067b22517SAlexander Sverdlin } 40167b22517SAlexander Sverdlin 4025c3a12e9SAlexander Sverdlin val |= cs4271_clk_tab[i].ratio_mask; 40367b22517SAlexander Sverdlin 4041b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1, 40567b22517SAlexander Sverdlin CS4271_MODE1_MODE_MASK | CS4271_MODE1_DIV_MASK, val); 4060d42e6e7SAlexander Sverdlin if (ret < 0) 4070d42e6e7SAlexander Sverdlin return ret; 40867b22517SAlexander Sverdlin 40967b22517SAlexander Sverdlin return cs4271_set_deemph(codec); 41067b22517SAlexander Sverdlin } 41167b22517SAlexander Sverdlin 412c24a34dbSDaniel Mack static int cs4271_mute_stream(struct snd_soc_dai *dai, int mute, int stream) 41367b22517SAlexander Sverdlin { 41467b22517SAlexander Sverdlin struct snd_soc_codec *codec = dai->codec; 4151b1861eaSDaniel Mack struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 4160d42e6e7SAlexander Sverdlin int ret; 41767b22517SAlexander Sverdlin int val_a = 0; 41867b22517SAlexander Sverdlin int val_b = 0; 41967b22517SAlexander Sverdlin 420c24a34dbSDaniel Mack if (stream != SNDRV_PCM_STREAM_PLAYBACK) 421c24a34dbSDaniel Mack return 0; 422c24a34dbSDaniel Mack 42367b22517SAlexander Sverdlin if (mute) { 42467b22517SAlexander Sverdlin val_a = CS4271_VOLA_MUTE; 42567b22517SAlexander Sverdlin val_b = CS4271_VOLB_MUTE; 42667b22517SAlexander Sverdlin } 42767b22517SAlexander Sverdlin 4281b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_VOLA, 4291b1861eaSDaniel Mack CS4271_VOLA_MUTE, val_a); 4300d42e6e7SAlexander Sverdlin if (ret < 0) 4310d42e6e7SAlexander Sverdlin return ret; 4321b1861eaSDaniel Mack 4331b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_VOLB, 4341b1861eaSDaniel Mack CS4271_VOLB_MUTE, val_b); 4350d42e6e7SAlexander Sverdlin if (ret < 0) 4360d42e6e7SAlexander Sverdlin return ret; 43767b22517SAlexander Sverdlin 43867b22517SAlexander Sverdlin return 0; 43967b22517SAlexander Sverdlin } 44067b22517SAlexander Sverdlin 44167b22517SAlexander Sverdlin /* CS4271 controls */ 44267b22517SAlexander Sverdlin static DECLARE_TLV_DB_SCALE(cs4271_dac_tlv, -12700, 100, 0); 44367b22517SAlexander Sverdlin 44467b22517SAlexander Sverdlin static const struct snd_kcontrol_new cs4271_snd_controls[] = { 44567b22517SAlexander Sverdlin SOC_DOUBLE_R_TLV("Master Playback Volume", CS4271_VOLA, CS4271_VOLB, 44667b22517SAlexander Sverdlin 0, 0x7F, 1, cs4271_dac_tlv), 44767b22517SAlexander Sverdlin SOC_SINGLE("Digital Loopback Switch", CS4271_MODE2, 4, 1, 0), 44867b22517SAlexander Sverdlin SOC_SINGLE("Soft Ramp Switch", CS4271_DACVOL, 5, 1, 0), 44967b22517SAlexander Sverdlin SOC_SINGLE("Zero Cross Switch", CS4271_DACVOL, 4, 1, 0), 45067b22517SAlexander Sverdlin SOC_SINGLE_BOOL_EXT("De-emphasis Switch", 0, 45167b22517SAlexander Sverdlin cs4271_get_deemph, cs4271_put_deemph), 45267b22517SAlexander Sverdlin SOC_SINGLE("Auto-Mute Switch", CS4271_DACCTL, 7, 1, 0), 45367b22517SAlexander Sverdlin SOC_SINGLE("Slow Roll Off Filter Switch", CS4271_DACCTL, 6, 1, 0), 45467b22517SAlexander Sverdlin SOC_SINGLE("Soft Volume Ramp-Up Switch", CS4271_DACCTL, 3, 1, 0), 45567b22517SAlexander Sverdlin SOC_SINGLE("Soft Ramp-Down Switch", CS4271_DACCTL, 2, 1, 0), 45667b22517SAlexander Sverdlin SOC_SINGLE("Left Channel Inversion Switch", CS4271_DACCTL, 1, 1, 0), 45767b22517SAlexander Sverdlin SOC_SINGLE("Right Channel Inversion Switch", CS4271_DACCTL, 0, 1, 0), 45867b22517SAlexander Sverdlin SOC_DOUBLE("Master Capture Switch", CS4271_ADCCTL, 3, 2, 1, 1), 45967b22517SAlexander Sverdlin SOC_SINGLE("Dither 16-Bit Data Switch", CS4271_ADCCTL, 5, 1, 0), 46067b22517SAlexander Sverdlin SOC_DOUBLE("High Pass Filter Switch", CS4271_ADCCTL, 1, 0, 1, 1), 46167b22517SAlexander Sverdlin SOC_DOUBLE_R("Master Playback Switch", CS4271_VOLA, CS4271_VOLB, 46267b22517SAlexander Sverdlin 7, 1, 1), 46367b22517SAlexander Sverdlin }; 46467b22517SAlexander Sverdlin 46585e7652dSLars-Peter Clausen static const struct snd_soc_dai_ops cs4271_dai_ops = { 46667b22517SAlexander Sverdlin .hw_params = cs4271_hw_params, 46767b22517SAlexander Sverdlin .set_sysclk = cs4271_set_dai_sysclk, 46867b22517SAlexander Sverdlin .set_fmt = cs4271_set_dai_fmt, 469c24a34dbSDaniel Mack .mute_stream = cs4271_mute_stream, 47067b22517SAlexander Sverdlin }; 47167b22517SAlexander Sverdlin 47216af7d60SMark Brown static struct snd_soc_dai_driver cs4271_dai = { 47367b22517SAlexander Sverdlin .name = "cs4271-hifi", 47467b22517SAlexander Sverdlin .playback = { 47567b22517SAlexander Sverdlin .stream_name = "Playback", 47667b22517SAlexander Sverdlin .channels_min = 2, 47767b22517SAlexander Sverdlin .channels_max = 2, 478383f8465SAlexander Sverdlin .rates = CS4271_PCM_RATES, 47967b22517SAlexander Sverdlin .formats = CS4271_PCM_FORMATS, 48067b22517SAlexander Sverdlin }, 48167b22517SAlexander Sverdlin .capture = { 48267b22517SAlexander Sverdlin .stream_name = "Capture", 48367b22517SAlexander Sverdlin .channels_min = 2, 48467b22517SAlexander Sverdlin .channels_max = 2, 485383f8465SAlexander Sverdlin .rates = CS4271_PCM_RATES, 48667b22517SAlexander Sverdlin .formats = CS4271_PCM_FORMATS, 48767b22517SAlexander Sverdlin }, 48867b22517SAlexander Sverdlin .ops = &cs4271_dai_ops, 48967b22517SAlexander Sverdlin .symmetric_rates = 1, 49067b22517SAlexander Sverdlin }; 49167b22517SAlexander Sverdlin 49267b22517SAlexander Sverdlin #ifdef CONFIG_PM 49384b315eeSLars-Peter Clausen static int cs4271_soc_suspend(struct snd_soc_codec *codec) 49467b22517SAlexander Sverdlin { 4950d42e6e7SAlexander Sverdlin int ret; 4961b1861eaSDaniel Mack struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 4971b1861eaSDaniel Mack 49867b22517SAlexander Sverdlin /* Set power-down bit */ 4991b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 5001b1861eaSDaniel Mack CS4271_MODE2_PDN, CS4271_MODE2_PDN); 5010d42e6e7SAlexander Sverdlin if (ret < 0) 5020d42e6e7SAlexander Sverdlin return ret; 5031b1861eaSDaniel Mack 50467b22517SAlexander Sverdlin return 0; 50567b22517SAlexander Sverdlin } 50667b22517SAlexander Sverdlin 50767b22517SAlexander Sverdlin static int cs4271_soc_resume(struct snd_soc_codec *codec) 50867b22517SAlexander Sverdlin { 5090d42e6e7SAlexander Sverdlin int ret; 5101b1861eaSDaniel Mack struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 5111b1861eaSDaniel Mack 51267b22517SAlexander Sverdlin /* Restore codec state */ 5131b1861eaSDaniel Mack ret = regcache_sync(cs4271->regmap); 5140d42e6e7SAlexander Sverdlin if (ret < 0) 5150d42e6e7SAlexander Sverdlin return ret; 5161b1861eaSDaniel Mack 51767b22517SAlexander Sverdlin /* then disable the power-down bit */ 5181b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 5191b1861eaSDaniel Mack CS4271_MODE2_PDN, 0); 5200d42e6e7SAlexander Sverdlin if (ret < 0) 5210d42e6e7SAlexander Sverdlin return ret; 5221b1861eaSDaniel Mack 52367b22517SAlexander Sverdlin return 0; 52467b22517SAlexander Sverdlin } 52567b22517SAlexander Sverdlin #else 52667b22517SAlexander Sverdlin #define cs4271_soc_suspend NULL 52767b22517SAlexander Sverdlin #define cs4271_soc_resume NULL 52867b22517SAlexander Sverdlin #endif /* CONFIG_PM */ 52967b22517SAlexander Sverdlin 530a31ebc34SDaniel Mack #ifdef CONFIG_OF 531a31ebc34SDaniel Mack static const struct of_device_id cs4271_dt_ids[] = { 532a31ebc34SDaniel Mack { .compatible = "cirrus,cs4271", }, 533a31ebc34SDaniel Mack { } 534a31ebc34SDaniel Mack }; 535a31ebc34SDaniel Mack MODULE_DEVICE_TABLE(of, cs4271_dt_ids); 536a31ebc34SDaniel Mack #endif 537a31ebc34SDaniel Mack 53867b22517SAlexander Sverdlin static int cs4271_probe(struct snd_soc_codec *codec) 53967b22517SAlexander Sverdlin { 54067b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 54167b22517SAlexander Sverdlin struct cs4271_platform_data *cs4271plat = codec->dev->platform_data; 54267b22517SAlexander Sverdlin int ret; 54367b22517SAlexander Sverdlin int gpio_nreset = -EINVAL; 54426047e2dSDaniel Mack bool amutec_eq_bmutec = false; 54567b22517SAlexander Sverdlin 546a31ebc34SDaniel Mack #ifdef CONFIG_OF 547293750f9SDaniel Mack if (of_match_device(cs4271_dt_ids, codec->dev)) { 548a31ebc34SDaniel Mack gpio_nreset = of_get_named_gpio(codec->dev->of_node, 549a31ebc34SDaniel Mack "reset-gpio", 0); 550293750f9SDaniel Mack 551b8455c9fSDaniel Mack if (of_get_property(codec->dev->of_node, 552293750f9SDaniel Mack "cirrus,amutec-eq-bmutec", NULL)) 55326047e2dSDaniel Mack amutec_eq_bmutec = true; 554fd23fb9fSDaniel Mack 555fd23fb9fSDaniel Mack if (of_get_property(codec->dev->of_node, 556fd23fb9fSDaniel Mack "cirrus,enable-soft-reset", NULL)) 557fd23fb9fSDaniel Mack cs4271->enable_soft_reset = true; 558293750f9SDaniel Mack } 559a31ebc34SDaniel Mack #endif 560a31ebc34SDaniel Mack 561293750f9SDaniel Mack if (cs4271plat) { 562293750f9SDaniel Mack if (gpio_is_valid(cs4271plat->gpio_nreset)) 56367b22517SAlexander Sverdlin gpio_nreset = cs4271plat->gpio_nreset; 56467b22517SAlexander Sverdlin 565293750f9SDaniel Mack amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec; 566fd23fb9fSDaniel Mack cs4271->enable_soft_reset = cs4271plat->enable_soft_reset; 567293750f9SDaniel Mack } 568293750f9SDaniel Mack 56967b22517SAlexander Sverdlin if (gpio_nreset >= 0) 5705574f774SDaniel Mack if (devm_gpio_request(codec->dev, gpio_nreset, "CS4271 Reset")) 57167b22517SAlexander Sverdlin gpio_nreset = -EINVAL; 57267b22517SAlexander Sverdlin if (gpio_nreset >= 0) { 57367b22517SAlexander Sverdlin /* Reset codec */ 57467b22517SAlexander Sverdlin gpio_direction_output(gpio_nreset, 0); 57567b22517SAlexander Sverdlin udelay(1); 57667b22517SAlexander Sverdlin gpio_set_value(gpio_nreset, 1); 57767b22517SAlexander Sverdlin /* Give the codec time to wake up */ 57867b22517SAlexander Sverdlin udelay(1); 57967b22517SAlexander Sverdlin } 58067b22517SAlexander Sverdlin 58167b22517SAlexander Sverdlin cs4271->gpio_nreset = gpio_nreset; 58267b22517SAlexander Sverdlin 5831b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 584ef0cd470SAxel Lin CS4271_MODE2_PDN | CS4271_MODE2_CPEN, 58567b22517SAlexander Sverdlin CS4271_MODE2_PDN | CS4271_MODE2_CPEN); 5860d42e6e7SAlexander Sverdlin if (ret < 0) 5870d42e6e7SAlexander Sverdlin return ret; 5881b1861eaSDaniel Mack ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 5891b1861eaSDaniel Mack CS4271_MODE2_PDN, 0); 5900d42e6e7SAlexander Sverdlin if (ret < 0) 5910d42e6e7SAlexander Sverdlin return ret; 59267b22517SAlexander Sverdlin /* Power-up sequence requires 85 uS */ 59367b22517SAlexander Sverdlin udelay(85); 59467b22517SAlexander Sverdlin 595293750f9SDaniel Mack if (amutec_eq_bmutec) 5961b1861eaSDaniel Mack regmap_update_bits(cs4271->regmap, CS4271_MODE2, 597293750f9SDaniel Mack CS4271_MODE2_MUTECAEQUB, 598293750f9SDaniel Mack CS4271_MODE2_MUTECAEQUB); 599293750f9SDaniel Mack 600bad268f3SMark Brown return 0; 60167b22517SAlexander Sverdlin } 60267b22517SAlexander Sverdlin 60367b22517SAlexander Sverdlin static int cs4271_remove(struct snd_soc_codec *codec) 60467b22517SAlexander Sverdlin { 60567b22517SAlexander Sverdlin struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 60667b22517SAlexander Sverdlin 6075574f774SDaniel Mack if (gpio_is_valid(cs4271->gpio_nreset)) 60867b22517SAlexander Sverdlin /* Set codec to the reset state */ 6095574f774SDaniel Mack gpio_set_value(cs4271->gpio_nreset, 0); 61067b22517SAlexander Sverdlin 61167b22517SAlexander Sverdlin return 0; 61267b22517SAlexander Sverdlin }; 61367b22517SAlexander Sverdlin 61416af7d60SMark Brown static struct snd_soc_codec_driver soc_codec_dev_cs4271 = { 61567b22517SAlexander Sverdlin .probe = cs4271_probe, 61667b22517SAlexander Sverdlin .remove = cs4271_remove, 61767b22517SAlexander Sverdlin .suspend = cs4271_soc_suspend, 61867b22517SAlexander Sverdlin .resume = cs4271_soc_resume, 619bad268f3SMark Brown 620bad268f3SMark Brown .controls = cs4271_snd_controls, 621bad268f3SMark Brown .num_controls = ARRAY_SIZE(cs4271_snd_controls), 6222e7fb942SMark Brown .dapm_widgets = cs4271_dapm_widgets, 6232e7fb942SMark Brown .num_dapm_widgets = ARRAY_SIZE(cs4271_dapm_widgets), 6242e7fb942SMark Brown .dapm_routes = cs4271_dapm_routes, 6252e7fb942SMark Brown .num_dapm_routes = ARRAY_SIZE(cs4271_dapm_routes), 62667b22517SAlexander Sverdlin }; 62767b22517SAlexander Sverdlin 62867b22517SAlexander Sverdlin #if defined(CONFIG_SPI_MASTER) 6291b1861eaSDaniel Mack 6301b1861eaSDaniel Mack static const struct regmap_config cs4271_spi_regmap = { 6311b1861eaSDaniel Mack .reg_bits = 16, 6321b1861eaSDaniel Mack .val_bits = 8, 6331b1861eaSDaniel Mack .max_register = CS4271_LASTREG, 6341b1861eaSDaniel Mack .read_flag_mask = 0x21, 6351b1861eaSDaniel Mack .write_flag_mask = 0x20, 6361b1861eaSDaniel Mack 6371b1861eaSDaniel Mack .reg_defaults = cs4271_reg_defaults, 6381b1861eaSDaniel Mack .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults), 6391b1861eaSDaniel Mack .cache_type = REGCACHE_RBTREE, 6401b1861eaSDaniel Mack 6411b1861eaSDaniel Mack .volatile_reg = cs4271_volatile_reg, 6421b1861eaSDaniel Mack }; 6431b1861eaSDaniel Mack 6447a79e94eSBill Pemberton static int cs4271_spi_probe(struct spi_device *spi) 64567b22517SAlexander Sverdlin { 64667b22517SAlexander Sverdlin struct cs4271_private *cs4271; 64767b22517SAlexander Sverdlin 64867b22517SAlexander Sverdlin cs4271 = devm_kzalloc(&spi->dev, sizeof(*cs4271), GFP_KERNEL); 64967b22517SAlexander Sverdlin if (!cs4271) 65067b22517SAlexander Sverdlin return -ENOMEM; 65167b22517SAlexander Sverdlin 65267b22517SAlexander Sverdlin spi_set_drvdata(spi, cs4271); 6531b1861eaSDaniel Mack cs4271->regmap = devm_regmap_init_spi(spi, &cs4271_spi_regmap); 6541b1861eaSDaniel Mack if (IS_ERR(cs4271->regmap)) 6551b1861eaSDaniel Mack return PTR_ERR(cs4271->regmap); 65667b22517SAlexander Sverdlin 65767b22517SAlexander Sverdlin return snd_soc_register_codec(&spi->dev, &soc_codec_dev_cs4271, 65867b22517SAlexander Sverdlin &cs4271_dai, 1); 65967b22517SAlexander Sverdlin } 66067b22517SAlexander Sverdlin 6617a79e94eSBill Pemberton static int cs4271_spi_remove(struct spi_device *spi) 66267b22517SAlexander Sverdlin { 66367b22517SAlexander Sverdlin snd_soc_unregister_codec(&spi->dev); 66467b22517SAlexander Sverdlin return 0; 66567b22517SAlexander Sverdlin } 66667b22517SAlexander Sverdlin 66767b22517SAlexander Sverdlin static struct spi_driver cs4271_spi_driver = { 66867b22517SAlexander Sverdlin .driver = { 66967b22517SAlexander Sverdlin .name = "cs4271", 67067b22517SAlexander Sverdlin .owner = THIS_MODULE, 671a31ebc34SDaniel Mack .of_match_table = of_match_ptr(cs4271_dt_ids), 67267b22517SAlexander Sverdlin }, 67367b22517SAlexander Sverdlin .probe = cs4271_spi_probe, 6747a79e94eSBill Pemberton .remove = cs4271_spi_remove, 67567b22517SAlexander Sverdlin }; 67667b22517SAlexander Sverdlin #endif /* defined(CONFIG_SPI_MASTER) */ 67767b22517SAlexander Sverdlin 67867b22517SAlexander Sverdlin #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 67979a54ea1SAxel Lin static const struct i2c_device_id cs4271_i2c_id[] = { 68067b22517SAlexander Sverdlin {"cs4271", 0}, 68167b22517SAlexander Sverdlin {} 68267b22517SAlexander Sverdlin }; 68367b22517SAlexander Sverdlin MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id); 68467b22517SAlexander Sverdlin 6851b1861eaSDaniel Mack static const struct regmap_config cs4271_i2c_regmap = { 6861b1861eaSDaniel Mack .reg_bits = 8, 6871b1861eaSDaniel Mack .val_bits = 8, 6881b1861eaSDaniel Mack .max_register = CS4271_LASTREG, 6891b1861eaSDaniel Mack 6901b1861eaSDaniel Mack .reg_defaults = cs4271_reg_defaults, 6911b1861eaSDaniel Mack .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults), 6921b1861eaSDaniel Mack .cache_type = REGCACHE_RBTREE, 6931b1861eaSDaniel Mack 6941b1861eaSDaniel Mack .volatile_reg = cs4271_volatile_reg, 6951b1861eaSDaniel Mack }; 6961b1861eaSDaniel Mack 6977a79e94eSBill Pemberton static int cs4271_i2c_probe(struct i2c_client *client, 69867b22517SAlexander Sverdlin const struct i2c_device_id *id) 69967b22517SAlexander Sverdlin { 70067b22517SAlexander Sverdlin struct cs4271_private *cs4271; 70167b22517SAlexander Sverdlin 70267b22517SAlexander Sverdlin cs4271 = devm_kzalloc(&client->dev, sizeof(*cs4271), GFP_KERNEL); 70367b22517SAlexander Sverdlin if (!cs4271) 70467b22517SAlexander Sverdlin return -ENOMEM; 70567b22517SAlexander Sverdlin 70667b22517SAlexander Sverdlin i2c_set_clientdata(client, cs4271); 7071b1861eaSDaniel Mack cs4271->regmap = devm_regmap_init_i2c(client, &cs4271_i2c_regmap); 7081b1861eaSDaniel Mack if (IS_ERR(cs4271->regmap)) 7091b1861eaSDaniel Mack return PTR_ERR(cs4271->regmap); 71067b22517SAlexander Sverdlin 71167b22517SAlexander Sverdlin return snd_soc_register_codec(&client->dev, &soc_codec_dev_cs4271, 71267b22517SAlexander Sverdlin &cs4271_dai, 1); 71367b22517SAlexander Sverdlin } 71467b22517SAlexander Sverdlin 7157a79e94eSBill Pemberton static int cs4271_i2c_remove(struct i2c_client *client) 71667b22517SAlexander Sverdlin { 71767b22517SAlexander Sverdlin snd_soc_unregister_codec(&client->dev); 71867b22517SAlexander Sverdlin return 0; 71967b22517SAlexander Sverdlin } 72067b22517SAlexander Sverdlin 72167b22517SAlexander Sverdlin static struct i2c_driver cs4271_i2c_driver = { 72267b22517SAlexander Sverdlin .driver = { 72367b22517SAlexander Sverdlin .name = "cs4271", 72467b22517SAlexander Sverdlin .owner = THIS_MODULE, 725a31ebc34SDaniel Mack .of_match_table = of_match_ptr(cs4271_dt_ids), 72667b22517SAlexander Sverdlin }, 72767b22517SAlexander Sverdlin .id_table = cs4271_i2c_id, 72867b22517SAlexander Sverdlin .probe = cs4271_i2c_probe, 7297a79e94eSBill Pemberton .remove = cs4271_i2c_remove, 73067b22517SAlexander Sverdlin }; 73167b22517SAlexander Sverdlin #endif /* defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) */ 73267b22517SAlexander Sverdlin 73367b22517SAlexander Sverdlin /* 73467b22517SAlexander Sverdlin * We only register our serial bus driver here without 73567b22517SAlexander Sverdlin * assignment to particular chip. So if any of the below 73667b22517SAlexander Sverdlin * fails, there is some problem with I2C or SPI subsystem. 73767b22517SAlexander Sverdlin * In most cases this module will be compiled with support 73867b22517SAlexander Sverdlin * of only one serial bus. 73967b22517SAlexander Sverdlin */ 74067b22517SAlexander Sverdlin static int __init cs4271_modinit(void) 74167b22517SAlexander Sverdlin { 74267b22517SAlexander Sverdlin int ret; 74367b22517SAlexander Sverdlin 74467b22517SAlexander Sverdlin #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 74567b22517SAlexander Sverdlin ret = i2c_add_driver(&cs4271_i2c_driver); 74667b22517SAlexander Sverdlin if (ret) { 74767b22517SAlexander Sverdlin pr_err("Failed to register CS4271 I2C driver: %d\n", ret); 74867b22517SAlexander Sverdlin return ret; 74967b22517SAlexander Sverdlin } 75067b22517SAlexander Sverdlin #endif 75167b22517SAlexander Sverdlin 75267b22517SAlexander Sverdlin #if defined(CONFIG_SPI_MASTER) 75367b22517SAlexander Sverdlin ret = spi_register_driver(&cs4271_spi_driver); 75467b22517SAlexander Sverdlin if (ret) { 75567b22517SAlexander Sverdlin pr_err("Failed to register CS4271 SPI driver: %d\n", ret); 75667b22517SAlexander Sverdlin return ret; 75767b22517SAlexander Sverdlin } 75867b22517SAlexander Sverdlin #endif 75967b22517SAlexander Sverdlin 76067b22517SAlexander Sverdlin return 0; 76167b22517SAlexander Sverdlin } 76267b22517SAlexander Sverdlin module_init(cs4271_modinit); 76367b22517SAlexander Sverdlin 76467b22517SAlexander Sverdlin static void __exit cs4271_modexit(void) 76567b22517SAlexander Sverdlin { 76667b22517SAlexander Sverdlin #if defined(CONFIG_SPI_MASTER) 76767b22517SAlexander Sverdlin spi_unregister_driver(&cs4271_spi_driver); 76867b22517SAlexander Sverdlin #endif 76967b22517SAlexander Sverdlin 77067b22517SAlexander Sverdlin #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 77167b22517SAlexander Sverdlin i2c_del_driver(&cs4271_i2c_driver); 77267b22517SAlexander Sverdlin #endif 77367b22517SAlexander Sverdlin } 77467b22517SAlexander Sverdlin module_exit(cs4271_modexit); 77567b22517SAlexander Sverdlin 77667b22517SAlexander Sverdlin MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>"); 77767b22517SAlexander Sverdlin MODULE_DESCRIPTION("Cirrus Logic CS4271 ALSA SoC Codec Driver"); 77867b22517SAlexander Sverdlin MODULE_LICENSE("GPL"); 779