diff options
Diffstat (limited to 'sound/soc/codecs/cs42l51.c')
| -rw-r--r-- | sound/soc/codecs/cs42l51.c | 409 |
1 files changed, 333 insertions, 76 deletions
diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c index 96cfe38943cd..0519affe0ed8 100644 --- a/sound/soc/codecs/cs42l51.c +++ b/sound/soc/codecs/cs42l51.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * cs42l51.c * @@ -7,20 +8,12 @@ * * Based on cs4270.c - Copyright (c) Freescale Semiconductor * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * For now: * - Only I2C is support. Not SPI * - master mode *NOT* supported */ +#include <linux/clk.h> #include <linux/module.h> #include <linux/slab.h> #include <sound/core.h> @@ -29,7 +22,9 @@ #include <sound/initval.h> #include <sound/pcm_params.h> #include <sound/pcm.h> +#include <linux/gpio/consumer.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include "cs42l51.h" @@ -39,23 +34,31 @@ enum master_slave_mode { MODE_MASTER, }; +static const char * const cs42l51_supply_names[] = { + "VL", + "VD", + "VA", + "VAHP", +}; + struct cs42l51_private { unsigned int mclk; + struct clk *mclk_handle; unsigned int audio_mode; /* The mode (I2S or left-justified) */ enum master_slave_mode func; + struct regulator_bulk_data supplies[ARRAY_SIZE(cs42l51_supply_names)]; + struct gpio_desc *reset_gpio; + struct regmap *regmap; }; -#define CS42L51_FORMATS ( \ - SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \ - SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \ - SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \ - SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE) +#define CS42L51_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE) static int cs42l51_get_chan_mix(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); - unsigned long value = snd_soc_read(codec, CS42L51_PCM_MIXER)&3; + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + unsigned long value = snd_soc_component_read(component, CS42L51_PCM_MIXER)&3; switch (value) { default: @@ -82,7 +85,7 @@ static int cs42l51_get_chan_mix(struct snd_kcontrol *kcontrol, static int cs42l51_set_chan_mix(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); unsigned char val; switch (ucontrol->value.enumerated.item[0]) { @@ -98,7 +101,7 @@ static int cs42l51_set_chan_mix(struct snd_kcontrol *kcontrol, break; } - snd_soc_write(codec, CS42L51_PCM_MIXER, val); + snd_soc_component_write(component, CS42L51_PCM_MIXER, val); return 1; } @@ -109,12 +112,16 @@ static const DECLARE_TLV_DB_SCALE(tone_tlv, -1050, 150, 0); static const DECLARE_TLV_DB_SCALE(aout_tlv, -10200, 50, 0); static const DECLARE_TLV_DB_SCALE(boost_tlv, 1600, 1600, 0); +static const DECLARE_TLV_DB_SCALE(adc_boost_tlv, 2000, 2000, 0); static const char *chan_mix[] = { "L R", "L+R", "R L", }; +static const DECLARE_TLV_DB_SCALE(pga_tlv, -300, 50, 0); +static const DECLARE_TLV_DB_SCALE(adc_att_tlv, -9600, 100, 0); + static SOC_ENUM_SINGLE_EXT_DECL(cs42l51_chan_mix, chan_mix); static const struct snd_kcontrol_new cs42l51_snd_controls[] = { @@ -131,12 +138,20 @@ static const struct snd_kcontrol_new cs42l51_snd_controls[] = { 0, 0x19, 0x7F, adc_pcm_tlv), SOC_DOUBLE_R("ADC Mixer Switch", CS42L51_ADCA_VOL, CS42L51_ADCB_VOL, 7, 1, 1), + SOC_DOUBLE_R_SX_TLV("ADC Attenuator Volume", + CS42L51_ADCA_ATT, CS42L51_ADCB_ATT, + 0, 0xA0, 96, adc_att_tlv), + SOC_DOUBLE_R_SX_TLV("PGA Volume", + CS42L51_ALC_PGA_CTL, CS42L51_ALC_PGB_CTL, + 0, 0x1A, 30, pga_tlv), SOC_SINGLE("Playback Deemphasis Switch", CS42L51_DAC_CTL, 3, 1, 0), SOC_SINGLE("Auto-Mute Switch", CS42L51_DAC_CTL, 2, 1, 0), SOC_SINGLE("Soft Ramp Switch", CS42L51_DAC_CTL, 1, 1, 0), SOC_SINGLE("Zero Cross Switch", CS42L51_DAC_CTL, 0, 0, 0), SOC_DOUBLE_TLV("Mic Boost Volume", CS42L51_MIC_CTL, 0, 1, 1, 0, boost_tlv), + SOC_DOUBLE_TLV("ADC Boost Volume", + CS42L51_MIC_CTL, 5, 6, 1, 0, adc_boost_tlv), SOC_SINGLE_TLV("Bass Volume", CS42L51_TONE_CTL, 0, 0xf, 1, tone_tlv), SOC_SINGLE_TLV("Treble Volume", CS42L51_TONE_CTL, 4, 0xf, 1, tone_tlv), SOC_ENUM_EXT("PCM channel mixer", @@ -153,17 +168,17 @@ static const struct snd_kcontrol_new cs42l51_snd_controls[] = { static int cs42l51_pdn_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { - struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); switch (event) { case SND_SOC_DAPM_PRE_PMD: - snd_soc_update_bits(codec, CS42L51_POWER_CTL1, + snd_soc_component_update_bits(component, CS42L51_POWER_CTL1, CS42L51_POWER_CTL1_PDN, CS42L51_POWER_CTL1_PDN); break; default: case SND_SOC_DAPM_POST_PMD: - snd_soc_update_bits(codec, CS42L51_POWER_CTL1, + snd_soc_component_update_bits(component, CS42L51_POWER_CTL1, CS42L51_POWER_CTL1_PDN, 0); break; } @@ -193,7 +208,8 @@ static const struct snd_kcontrol_new cs42l51_adcr_mux_controls = SOC_DAPM_ENUM("Route", cs42l51_adcr_mux_enum); static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { - SND_SOC_DAPM_MICBIAS("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1), + SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L51_MIC_POWER_CTL, 1, 1, NULL, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("Left PGA", CS42L51_POWER_CTL1, 3, 1, NULL, 0, cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), SND_SOC_DAPM_PGA_E("Right PGA", CS42L51_POWER_CTL1, 4, 1, NULL, 0, @@ -204,12 +220,10 @@ static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { SND_SOC_DAPM_ADC_E("Right ADC", "Right HiFi Capture", CS42L51_POWER_CTL1, 2, 1, cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), - SND_SOC_DAPM_DAC_E("Left DAC", "Left HiFi Playback", - CS42L51_POWER_CTL1, 5, 1, - cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), - SND_SOC_DAPM_DAC_E("Right DAC", "Right HiFi Playback", - CS42L51_POWER_CTL1, 6, 1, - cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), + SND_SOC_DAPM_DAC_E("Left DAC", NULL, CS42L51_POWER_CTL1, 5, 1, + cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), + SND_SOC_DAPM_DAC_E("Right DAC", NULL, CS42L51_POWER_CTL1, 6, 1, + cs42l51_pdn_event, SND_SOC_DAPM_PRE_POST_PMD), /* analog/mic */ SND_SOC_DAPM_INPUT("AIN1L"), @@ -237,10 +251,40 @@ static const struct snd_soc_dapm_widget cs42l51_dapm_widgets[] = { &cs42l51_adcr_mux_controls), }; +static int mclk_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm); + struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(comp); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return clk_prepare_enable(cs42l51->mclk_handle); + case SND_SOC_DAPM_POST_PMD: + /* Delay mclk shutdown to fulfill power-down sequence requirements */ + msleep(20); + clk_disable_unprepare(cs42l51->mclk_handle); + break; + } + + return 0; +} + +static const struct snd_soc_dapm_widget cs42l51_dapm_mclk_widgets[] = { + SND_SOC_DAPM_SUPPLY("MCLK", SND_SOC_NOPM, 0, 0, mclk_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +}; + static const struct snd_soc_dapm_route cs42l51_routes[] = { {"HPL", NULL, "Left DAC"}, {"HPR", NULL, "Right DAC"}, + {"Right DAC", NULL, "DAC Mux"}, + {"Left DAC", NULL, "DAC Mux"}, + + {"DAC Mux", "Direct PCM", "Playback"}, + {"DAC Mux", "DSP PCM", "Playback"}, + {"Left ADC", NULL, "Left PGA"}, {"Right ADC", NULL, "Right PGA"}, @@ -263,8 +307,8 @@ static const struct snd_soc_dapm_route cs42l51_routes[] = { static int cs42l51_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { - struct snd_soc_codec *codec = codec_dai->codec; - struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_component *component = codec_dai->component; + struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component); switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: @@ -273,19 +317,19 @@ static int cs42l51_set_dai_fmt(struct snd_soc_dai *codec_dai, cs42l51->audio_mode = format & SND_SOC_DAIFMT_FORMAT_MASK; break; default: - dev_err(codec->dev, "invalid DAI format\n"); + dev_err(component->dev, "invalid DAI format\n"); return -EINVAL; } switch (format & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: + case SND_SOC_DAIFMT_CBP_CFP: cs42l51->func = MODE_MASTER; break; - case SND_SOC_DAIFMT_CBS_CFS: + case SND_SOC_DAIFMT_CBC_CFC: cs42l51->func = MODE_SLAVE_AUTO; break; default: - dev_err(codec->dev, "Unknown master/slave configuration\n"); + dev_err(component->dev, "Unknown master/slave configuration\n"); return -EINVAL; } @@ -323,11 +367,24 @@ static struct cs42l51_ratios slave_auto_ratios[] = { { 256, CS42L51_DSM_MODE, 1 }, { 384, CS42L51_DSM_MODE, 1 }, }; +/* + * Master mode mclk/fs ratios. + * Recommended configurations are SSM for 4-50khz and DSM for 50-100kHz ranges + * The table below provides support of following ratios: + * 128: SSM (%128) with div2 disabled + * 256: SSM (%128) with div2 enabled + * In both cases, if sampling rate is above 50kHz, SSM is overridden + * with DSM (%128) configuration + */ +static struct cs42l51_ratios master_ratios[] = { + { 128, CS42L51_SSM_MODE, 0 }, { 256, CS42L51_SSM_MODE, 1 }, +}; + static int cs42l51_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { - struct snd_soc_codec *codec = codec_dai->codec; - struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_component *component = codec_dai->component; + struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component); cs42l51->mclk = freq; return 0; @@ -337,19 +394,21 @@ static int cs42l51_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { - struct snd_soc_codec *codec = dai->codec; - struct cs42l51_private *cs42l51 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_component *component = dai->component; + struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component); int ret; unsigned int i; unsigned int rate; unsigned int ratio; struct cs42l51_ratios *ratios = NULL; int nr_ratios = 0; - int intf_ctl, power_ctl, fmt; + int intf_ctl, power_ctl, fmt, mode; switch (cs42l51->func) { case MODE_MASTER: - return -EINVAL; + ratios = master_ratios; + nr_ratios = ARRAY_SIZE(master_ratios); + break; case MODE_SLAVE: ratios = slave_ratios; nr_ratios = ARRAY_SIZE(slave_ratios); @@ -370,12 +429,12 @@ static int cs42l51_hw_params(struct snd_pcm_substream *substream, if (i == nr_ratios) { /* We did not find a matching ratio */ - dev_err(codec->dev, "could not find matching ratio\n"); + dev_err(component->dev, "could not find matching ratio\n"); return -EINVAL; } - intf_ctl = snd_soc_read(codec, CS42L51_INTF_CTL); - power_ctl = snd_soc_read(codec, CS42L51_MIC_POWER_CTL); + intf_ctl = snd_soc_component_read(component, CS42L51_INTF_CTL); + power_ctl = snd_soc_component_read(component, CS42L51_MIC_POWER_CTL); intf_ctl &= ~(CS42L51_INTF_CTL_MASTER | CS42L51_INTF_CTL_ADC_I2S | CS42L51_INTF_CTL_DAC_FORMAT(7)); @@ -385,7 +444,16 @@ static int cs42l51_hw_params(struct snd_pcm_substream *substream, switch (cs42l51->func) { case MODE_MASTER: intf_ctl |= CS42L51_INTF_CTL_MASTER; - power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); + mode = ratios[i].speed_mode; + /* Force DSM mode if sampling rate is above 50kHz */ + if (rate > 50000) + mode = CS42L51_DSM_MODE; + power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(mode); + /* + * Auto detect mode is not applicable for master mode and has to + * be disabled. Otherwise SPEED[1:0] bits will be ignored. + */ + power_ctl &= ~CS42L51_MIC_POWER_CTL_AUTO; break; case MODE_SLAVE: power_ctl |= CS42L51_MIC_POWER_CTL_SPEED(ratios[i].speed_mode); @@ -418,51 +486,59 @@ static int cs42l51_hw_params(struct snd_pcm_substream *substream, fmt = CS42L51_DAC_DIF_RJ24; break; default: - dev_err(codec->dev, "unknown format\n"); + dev_err(component->dev, "unknown format\n"); return -EINVAL; } intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(fmt); break; default: - dev_err(codec->dev, "unknown format\n"); + dev_err(component->dev, "unknown format\n"); return -EINVAL; } if (ratios[i].mclk) power_ctl |= CS42L51_MIC_POWER_CTL_MCLK_DIV2; - ret = snd_soc_write(codec, CS42L51_INTF_CTL, intf_ctl); + ret = snd_soc_component_write(component, CS42L51_INTF_CTL, intf_ctl); if (ret < 0) return ret; - ret = snd_soc_write(codec, CS42L51_MIC_POWER_CTL, power_ctl); + ret = snd_soc_component_write(component, CS42L51_MIC_POWER_CTL, power_ctl); if (ret < 0) return ret; return 0; } -static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute) +static int cs42l51_dai_mute(struct snd_soc_dai *dai, int mute, int direction) { - struct snd_soc_codec *codec = dai->codec; + struct snd_soc_component *component = dai->component; int reg; int mask = CS42L51_DAC_OUT_CTL_DACA_MUTE|CS42L51_DAC_OUT_CTL_DACB_MUTE; - reg = snd_soc_read(codec, CS42L51_DAC_OUT_CTL); + reg = snd_soc_component_read(component, CS42L51_DAC_OUT_CTL); if (mute) reg |= mask; else reg &= ~mask; - return snd_soc_write(codec, CS42L51_DAC_OUT_CTL, reg); + return snd_soc_component_write(component, CS42L51_DAC_OUT_CTL, reg); +} + +static int cs42l51_of_xlate_dai_id(struct snd_soc_component *component, + struct device_node *endpoint) +{ + /* return dai id 0, whatever the endpoint index */ + return 0; } static const struct snd_soc_dai_ops cs42l51_dai_ops = { .hw_params = cs42l51_hw_params, .set_sysclk = cs42l51_set_dai_sysclk, .set_fmt = cs42l51_set_dai_fmt, - .digital_mute = cs42l51_dai_mute, + .mute_stream = cs42l51_dai_mute, + .no_capture_mute = 1, }; static struct snd_soc_dai_driver cs42l51_dai = { @@ -484,9 +560,17 @@ static struct snd_soc_dai_driver cs42l51_dai = { .ops = &cs42l51_dai_ops, }; -static int cs42l51_codec_probe(struct snd_soc_codec *codec) +static int cs42l51_component_probe(struct snd_soc_component *component) { int ret, reg; + struct snd_soc_dapm_context *dapm; + struct cs42l51_private *cs42l51; + + cs42l51 = snd_soc_component_get_drvdata(component); + dapm = snd_soc_component_to_dapm(component); + + if (cs42l51->mclk_handle) + snd_soc_dapm_new_controls(dapm, cs42l51_dapm_mclk_widgets, 1); /* * DAC configuration @@ -497,29 +581,129 @@ static int cs42l51_codec_probe(struct snd_soc_codec *codec) */ reg = CS42L51_DAC_CTL_DATA_SEL(1) | CS42L51_DAC_CTL_AMUTE | CS42L51_DAC_CTL_DACSZ(0); - ret = snd_soc_write(codec, CS42L51_DAC_CTL, reg); + ret = snd_soc_component_write(component, CS42L51_DAC_CTL, reg); if (ret < 0) return ret; return 0; } -static struct snd_soc_codec_driver soc_codec_device_cs42l51 = { - .probe = cs42l51_codec_probe, - - .component_driver = { - .controls = cs42l51_snd_controls, - .num_controls = ARRAY_SIZE(cs42l51_snd_controls), - .dapm_widgets = cs42l51_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(cs42l51_dapm_widgets), - .dapm_routes = cs42l51_routes, - .num_dapm_routes = ARRAY_SIZE(cs42l51_routes), - }, +static const struct snd_soc_component_driver soc_component_device_cs42l51 = { + .probe = cs42l51_component_probe, + .controls = cs42l51_snd_controls, + .num_controls = ARRAY_SIZE(cs42l51_snd_controls), + .dapm_widgets = cs42l51_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(cs42l51_dapm_widgets), + .dapm_routes = cs42l51_routes, + .num_dapm_routes = ARRAY_SIZE(cs42l51_routes), + .of_xlate_dai_id = cs42l51_of_xlate_dai_id, + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, }; +static bool cs42l51_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS42L51_POWER_CTL1: + case CS42L51_MIC_POWER_CTL: + case CS42L51_INTF_CTL: + case CS42L51_MIC_CTL: + case CS42L51_ADC_CTL: + case CS42L51_ADC_INPUT: + case CS42L51_DAC_OUT_CTL: + case CS42L51_DAC_CTL: + case CS42L51_ALC_PGA_CTL: + case CS42L51_ALC_PGB_CTL: + case CS42L51_ADCA_ATT: + case CS42L51_ADCB_ATT: + case CS42L51_ADCA_VOL: + case CS42L51_ADCB_VOL: + case CS42L51_PCMA_VOL: + case CS42L51_PCMB_VOL: + case CS42L51_BEEP_FREQ: + case CS42L51_BEEP_VOL: + case CS42L51_BEEP_CONF: + case CS42L51_TONE_CTL: + case CS42L51_AOUTA_VOL: + case CS42L51_AOUTB_VOL: + case CS42L51_PCM_MIXER: + case CS42L51_LIMIT_THRES_DIS: + case CS42L51_LIMIT_REL: + case CS42L51_LIMIT_ATT: + case CS42L51_ALC_EN: + case CS42L51_ALC_REL: + case CS42L51_ALC_THRES: + case CS42L51_NOISE_CONF: + case CS42L51_CHARGE_FREQ: + return true; + default: + return false; + } +} + +static bool cs42l51_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS42L51_STATUS: + return true; + default: + return false; + } +} + +static bool cs42l51_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS42L51_CHIP_REV_ID: + case CS42L51_POWER_CTL1: + case CS42L51_MIC_POWER_CTL: + case CS42L51_INTF_CTL: + case CS42L51_MIC_CTL: + case CS42L51_ADC_CTL: + case CS42L51_ADC_INPUT: + case CS42L51_DAC_OUT_CTL: + case CS42L51_DAC_CTL: + case CS42L51_ALC_PGA_CTL: + case CS42L51_ALC_PGB_CTL: + case CS42L51_ADCA_ATT: + case CS42L51_ADCB_ATT: + case CS42L51_ADCA_VOL: + case CS42L51_ADCB_VOL: + case CS42L51_PCMA_VOL: + case CS42L51_PCMB_VOL: + case CS42L51_BEEP_FREQ: + case CS42L51_BEEP_VOL: + case CS42L51_BEEP_CONF: + case CS42L51_TONE_CTL: + case CS42L51_AOUTA_VOL: + case CS42L51_AOUTB_VOL: + case CS42L51_PCM_MIXER: + case CS42L51_LIMIT_THRES_DIS: + case CS42L51_LIMIT_REL: + case CS42L51_LIMIT_ATT: + case CS42L51_ALC_EN: + case CS42L51_ALC_REL: + case CS42L51_ALC_THRES: + case CS42L51_NOISE_CONF: + case CS42L51_STATUS: + case CS42L51_CHARGE_FREQ: + return true; + default: + return false; + } +} + const struct regmap_config cs42l51_regmap = { + .reg_bits = 8, + .reg_stride = 1, + .val_bits = 8, + .use_single_write = true, + .readable_reg = cs42l51_readable_reg, + .volatile_reg = cs42l51_volatile_reg, + .writeable_reg = cs42l51_writeable_reg, .max_register = CS42L51_CHARGE_FREQ, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, }; EXPORT_SYMBOL_GPL(cs42l51_regmap); @@ -527,7 +711,7 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) { struct cs42l51_private *cs42l51; unsigned int val; - int ret; + int ret, i; if (IS_ERR(regmap)) return PTR_ERR(regmap); @@ -538,6 +722,41 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) return -ENOMEM; dev_set_drvdata(dev, cs42l51); + cs42l51->regmap = regmap; + + cs42l51->mclk_handle = devm_clk_get_optional(dev, "MCLK"); + if (IS_ERR(cs42l51->mclk_handle)) + return PTR_ERR(cs42l51->mclk_handle); + + for (i = 0; i < ARRAY_SIZE(cs42l51->supplies); i++) + cs42l51->supplies[i].supply = cs42l51_supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); + if (ret != 0) { + dev_err(dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); + if (ret != 0) { + dev_err(dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + + cs42l51->reset_gpio = devm_gpiod_get_optional(dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(cs42l51->reset_gpio)) { + ret = PTR_ERR(cs42l51->reset_gpio); + goto error; + } + + if (cs42l51->reset_gpio) { + dev_dbg(dev, "Release reset gpio\n"); + gpiod_set_value_cansleep(cs42l51->reset_gpio, 0); + mdelay(2); + } /* Verify that we have a CS42L51 */ ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val); @@ -555,19 +774,57 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) dev_info(dev, "Cirrus Logic CS42L51, Revision: %02X\n", val & CS42L51_CHIP_REV_MASK); - ret = snd_soc_register_codec(dev, - &soc_codec_device_cs42l51, &cs42l51_dai, 1); + ret = devm_snd_soc_register_component(dev, + &soc_component_device_cs42l51, &cs42l51_dai, 1); + if (ret < 0) + goto error; + + return 0; + error: + gpiod_set_value_cansleep(cs42l51->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); return ret; } EXPORT_SYMBOL_GPL(cs42l51_probe); -const struct of_device_id cs42l51_of_match[] = { - { .compatible = "cirrus,cs42l51", }, - { } -}; -MODULE_DEVICE_TABLE(of, cs42l51_of_match); -EXPORT_SYMBOL_GPL(cs42l51_of_match); +void cs42l51_remove(struct device *dev) +{ + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); + int ret; + + gpiod_set_value_cansleep(cs42l51->reset_gpio, 1); + + ret = regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); + if (ret) + dev_warn(dev, "Failed to disable all regulators (%pe)\n", + ERR_PTR(ret)); + +} +EXPORT_SYMBOL_GPL(cs42l51_remove); + +int cs42l51_suspend(struct device *dev) +{ + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); + + regcache_cache_only(cs42l51->regmap, true); + regcache_mark_dirty(cs42l51->regmap); + + return 0; +} +EXPORT_SYMBOL_GPL(cs42l51_suspend); + +int cs42l51_resume(struct device *dev) +{ + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); + + regcache_cache_only(cs42l51->regmap, false); + + return regcache_sync(cs42l51->regmap); +} +EXPORT_SYMBOL_GPL(cs42l51_resume); MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>"); MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver"); |