533 lines
13 KiB
C
533 lines
13 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/bits.h>
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#include <linux/bitfield.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#define RT9120_REG_DEVID 0x00
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#define RT9120_REG_I2SFMT 0x02
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#define RT9120_REG_I2SWL 0x03
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#define RT9120_REG_SDIOSEL 0x04
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#define RT9120_REG_SYSCTL 0x05
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#define RT9120_REG_SPKGAIN 0x07
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#define RT9120_REG_VOLRAMP 0x0A
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#define RT9120_REG_ERRRPT 0x10
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#define RT9120_REG_MSVOL 0x20
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#define RT9120_REG_SWRESET 0x40
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#define RT9120_REG_INTERCFG 0x63
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#define RT9120_REG_INTERNAL0 0x65
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#define RT9120_REG_INTERNAL1 0x69
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#define RT9120_REG_UVPOPT 0x6C
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#define RT9120_REG_DIGCFG 0xF8
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#define RT9120_VID_MASK GENMASK(15, 8)
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#define RT9120_SWRST_MASK BIT(7)
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#define RT9120_MUTE_MASK GENMASK(5, 4)
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#define RT9120_I2SFMT_MASK GENMASK(4, 2)
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#define RT9120_I2SFMT_SHIFT 2
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#define RT9120_CFG_FMT_I2S 0
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#define RT9120_CFG_FMT_LEFTJ 1
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#define RT9120_CFG_FMT_RIGHTJ 2
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#define RT9120_CFG_FMT_DSPA 3
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#define RT9120_CFG_FMT_DSPB 7
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#define RT9120_AUDBIT_MASK GENMASK(1, 0)
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#define RT9120_CFG_AUDBIT_16 0
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#define RT9120_CFG_AUDBIT_20 1
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#define RT9120_CFG_AUDBIT_24 2
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#define RT9120_AUDWL_MASK GENMASK(5, 0)
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#define RT9120_CFG_WORDLEN_16 16
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#define RT9120_CFG_WORDLEN_24 24
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#define RT9120_CFG_WORDLEN_32 32
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#define RT9120_DVDD_UVSEL_MASK GENMASK(5, 4)
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#define RT9120_AUTOSYNC_MASK BIT(6)
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#define RT9120_VENDOR_ID 0x42
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#define RT9120S_VENDOR_ID 0x43
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#define RT9120_RESET_WAITMS 20
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#define RT9120_CHIPON_WAITMS 20
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#define RT9120_AMPON_WAITMS 50
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#define RT9120_AMPOFF_WAITMS 100
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#define RT9120_LVAPP_THRESUV 2000000
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/* 8000 to 192000 supported , only 176400 not support */
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#define RT9120_RATES_MASK (SNDRV_PCM_RATE_8000_192000 &\
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~SNDRV_PCM_RATE_176400)
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#define RT9120_FMTS_MASK (SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S24_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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enum {
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CHIP_IDX_RT9120 = 0,
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CHIP_IDX_RT9120S,
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CHIP_IDX_MAX
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};
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struct rt9120_data {
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struct device *dev;
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struct regmap *regmap;
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int chip_idx;
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};
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/* 11bit [min,max,step] = [-103.9375dB, 24dB, 0.0625dB] */
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static const DECLARE_TLV_DB_SCALE(digital_tlv, -1039375, 625, 1);
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/* {6, 8, 10, 12, 13, 14, 15, 16}dB */
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static const DECLARE_TLV_DB_RANGE(classd_tlv,
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0, 3, TLV_DB_SCALE_ITEM(600, 200, 0),
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4, 7, TLV_DB_SCALE_ITEM(1300, 100, 0)
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);
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static const char * const sdo_select_text[] = {
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"None", "INTF", "Final", "RMS Detect"
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};
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static const struct soc_enum sdo_select_enum =
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SOC_ENUM_SINGLE(RT9120_REG_SDIOSEL, 4, ARRAY_SIZE(sdo_select_text),
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sdo_select_text);
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static const struct snd_kcontrol_new rt9120_snd_controls[] = {
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SOC_SINGLE_TLV("MS Volume", RT9120_REG_MSVOL, 0, 2047, 1, digital_tlv),
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SOC_SINGLE_TLV("SPK Gain Volume", RT9120_REG_SPKGAIN, 0, 7, 0, classd_tlv),
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SOC_SINGLE("PBTL Switch", RT9120_REG_SYSCTL, 3, 1, 0),
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SOC_ENUM("SDO Select", sdo_select_enum),
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};
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static int internal_power_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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snd_soc_component_write(comp, RT9120_REG_ERRRPT, 0);
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break;
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case SND_SOC_DAPM_POST_PMU:
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msleep(RT9120_AMPON_WAITMS);
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break;
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case SND_SOC_DAPM_POST_PMD:
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msleep(RT9120_AMPOFF_WAITMS);
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break;
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default:
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break;
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}
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return 0;
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}
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static const struct snd_soc_dapm_widget rt9120_dapm_widgets[] = {
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SND_SOC_DAPM_MIXER("DMIX", SND_SOC_NOPM, 0, 0, NULL, 0),
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SND_SOC_DAPM_DAC("LDAC", NULL, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_DAC("RDAC", NULL, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_SUPPLY("PWND", RT9120_REG_SYSCTL, 6, 1,
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internal_power_event, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_PGA("SPKL PA", SND_SOC_NOPM, 0, 0, NULL, 0),
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SND_SOC_DAPM_PGA("SPKR PA", SND_SOC_NOPM, 0, 0, NULL, 0),
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SND_SOC_DAPM_OUTPUT("SPKL"),
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SND_SOC_DAPM_OUTPUT("SPKR"),
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};
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static const struct snd_soc_dapm_route rt9120_dapm_routes[] = {
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{ "DMIX", NULL, "AIF Playback" },
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/* SPKL */
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{ "LDAC", NULL, "PWND" },
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{ "LDAC", NULL, "DMIX" },
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{ "SPKL PA", NULL, "LDAC" },
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{ "SPKL", NULL, "SPKL PA" },
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/* SPKR */
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{ "RDAC", NULL, "PWND" },
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{ "RDAC", NULL, "DMIX" },
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{ "SPKR PA", NULL, "RDAC" },
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{ "SPKR", NULL, "SPKR PA" },
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/* Cap */
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{ "AIF Capture", NULL, "LDAC" },
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{ "AIF Capture", NULL, "RDAC" },
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};
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static int rt9120_codec_probe(struct snd_soc_component *comp)
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{
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struct rt9120_data *data = snd_soc_component_get_drvdata(comp);
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snd_soc_component_init_regmap(comp, data->regmap);
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/* Internal setting */
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if (data->chip_idx == CHIP_IDX_RT9120S) {
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snd_soc_component_write(comp, RT9120_REG_INTERCFG, 0xde);
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snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x66);
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} else
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snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x04);
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return 0;
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}
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static const struct snd_soc_component_driver rt9120_component_driver = {
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.probe = rt9120_codec_probe,
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.controls = rt9120_snd_controls,
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.num_controls = ARRAY_SIZE(rt9120_snd_controls),
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.dapm_widgets = rt9120_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rt9120_dapm_widgets),
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.dapm_routes = rt9120_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(rt9120_dapm_routes),
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};
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static int rt9120_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_component *comp = dai->component;
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unsigned int format;
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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format = RT9120_CFG_FMT_I2S;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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format = RT9120_CFG_FMT_LEFTJ;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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format = RT9120_CFG_FMT_RIGHTJ;
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break;
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case SND_SOC_DAIFMT_DSP_A:
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format = RT9120_CFG_FMT_DSPA;
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break;
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case SND_SOC_DAIFMT_DSP_B:
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format = RT9120_CFG_FMT_DSPB;
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break;
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default:
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dev_err(dai->dev, "Unknown dai format\n");
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return -EINVAL;
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}
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snd_soc_component_update_bits(comp, RT9120_REG_I2SFMT,
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RT9120_I2SFMT_MASK,
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format << RT9120_I2SFMT_SHIFT);
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return 0;
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}
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static int rt9120_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *param,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *comp = dai->component;
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unsigned int param_width, param_slot_width, auto_sync;
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int width, fs;
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switch (width = params_width(param)) {
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case 16:
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param_width = RT9120_CFG_AUDBIT_16;
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break;
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case 20:
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param_width = RT9120_CFG_AUDBIT_20;
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break;
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case 24:
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case 32:
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param_width = RT9120_CFG_AUDBIT_24;
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break;
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default:
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dev_err(dai->dev, "Unsupported data width [%d]\n", width);
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return -EINVAL;
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}
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snd_soc_component_update_bits(comp, RT9120_REG_I2SFMT,
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RT9120_AUDBIT_MASK, param_width);
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switch (width = params_physical_width(param)) {
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case 16:
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param_slot_width = RT9120_CFG_WORDLEN_16;
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break;
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case 24:
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param_slot_width = RT9120_CFG_WORDLEN_24;
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break;
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case 32:
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param_slot_width = RT9120_CFG_WORDLEN_32;
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break;
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default:
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dev_err(dai->dev, "Unsupported slot width [%d]\n", width);
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return -EINVAL;
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}
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snd_soc_component_update_bits(comp, RT9120_REG_I2SWL,
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RT9120_AUDWL_MASK, param_slot_width);
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fs = width * params_channels(param);
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/* If fs is divided by 48, disable auto sync */
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if (fs % 48 == 0)
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auto_sync = 0;
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else
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auto_sync = RT9120_AUTOSYNC_MASK;
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snd_soc_component_update_bits(comp, RT9120_REG_DIGCFG,
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RT9120_AUTOSYNC_MASK, auto_sync);
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return 0;
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}
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static const struct snd_soc_dai_ops rt9120_dai_ops = {
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.set_fmt = rt9120_set_fmt,
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.hw_params = rt9120_hw_params,
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};
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static struct snd_soc_dai_driver rt9120_dai = {
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.name = "rt9120_aif",
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.playback = {
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.stream_name = "AIF Playback",
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.rates = RT9120_RATES_MASK,
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.formats = RT9120_FMTS_MASK,
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.rate_max = 192000,
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.rate_min = 8000,
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.channels_min = 1,
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.channels_max = 2,
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},
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.capture = {
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.stream_name = "AIF Capture",
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.rates = RT9120_RATES_MASK,
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.formats = RT9120_FMTS_MASK,
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.rate_max = 192000,
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.rate_min = 8000,
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.channels_min = 1,
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.channels_max = 2,
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},
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.ops = &rt9120_dai_ops,
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.symmetric_rate = 1,
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.symmetric_sample_bits = 1,
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};
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static const struct regmap_range rt9120_rd_yes_ranges[] = {
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regmap_reg_range(0x00, 0x0C),
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regmap_reg_range(0x10, 0x15),
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regmap_reg_range(0x20, 0x27),
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regmap_reg_range(0x30, 0x38),
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regmap_reg_range(0x3A, 0x40),
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regmap_reg_range(0x63, 0x63),
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regmap_reg_range(0x65, 0x65),
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regmap_reg_range(0x69, 0x69),
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regmap_reg_range(0x6C, 0x6C),
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regmap_reg_range(0xF8, 0xF8)
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};
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static const struct regmap_access_table rt9120_rd_table = {
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.yes_ranges = rt9120_rd_yes_ranges,
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.n_yes_ranges = ARRAY_SIZE(rt9120_rd_yes_ranges),
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};
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static const struct regmap_range rt9120_wr_yes_ranges[] = {
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regmap_reg_range(0x00, 0x00),
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regmap_reg_range(0x02, 0x0A),
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regmap_reg_range(0x10, 0x15),
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regmap_reg_range(0x20, 0x27),
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regmap_reg_range(0x30, 0x38),
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regmap_reg_range(0x3A, 0x3D),
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regmap_reg_range(0x40, 0x40),
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regmap_reg_range(0x63, 0x63),
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regmap_reg_range(0x65, 0x65),
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regmap_reg_range(0x69, 0x69),
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|
|
regmap_reg_range(0x6C, 0x6C),
|
||
|
|
regmap_reg_range(0xF8, 0xF8)
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct regmap_access_table rt9120_wr_table = {
|
||
|
|
.yes_ranges = rt9120_wr_yes_ranges,
|
||
|
|
.n_yes_ranges = ARRAY_SIZE(rt9120_wr_yes_ranges),
|
||
|
|
};
|
||
|
|
|
||
|
|
static int rt9120_get_reg_size(unsigned int reg)
|
||
|
|
{
|
||
|
|
switch (reg) {
|
||
|
|
case 0x00:
|
||
|
|
case 0x20 ... 0x27:
|
||
|
|
return 2;
|
||
|
|
case 0x30 ... 0x3D:
|
||
|
|
return 3;
|
||
|
|
case 0x3E ... 0x3F:
|
||
|
|
return 4;
|
||
|
|
default:
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rt9120_reg_read(void *context, unsigned int reg, unsigned int *val)
|
||
|
|
{
|
||
|
|
struct rt9120_data *data = context;
|
||
|
|
struct i2c_client *i2c = to_i2c_client(data->dev);
|
||
|
|
int size = rt9120_get_reg_size(reg);
|
||
|
|
u8 raw[4] = {0};
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = i2c_smbus_read_i2c_block_data(i2c, reg, size, raw);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
else if (ret != size)
|
||
|
|
return -EIO;
|
||
|
|
|
||
|
|
switch (size) {
|
||
|
|
case 4:
|
||
|
|
*val = be32_to_cpup((__be32 *)raw);
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
*val = raw[0] << 16 | raw[1] << 8 | raw[0];
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
*val = be16_to_cpup((__be16 *)raw);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
*val = raw[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rt9120_reg_write(void *context, unsigned int reg, unsigned int val)
|
||
|
|
{
|
||
|
|
struct rt9120_data *data = context;
|
||
|
|
struct i2c_client *i2c = to_i2c_client(data->dev);
|
||
|
|
int size = rt9120_get_reg_size(reg);
|
||
|
|
__be32 be32_val;
|
||
|
|
u8 *rawp = (u8 *)&be32_val;
|
||
|
|
int offs = 4 - size;
|
||
|
|
|
||
|
|
be32_val = cpu_to_be32(val);
|
||
|
|
return i2c_smbus_write_i2c_block_data(i2c, reg, size, rawp + offs);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct regmap_config rt9120_regmap_config = {
|
||
|
|
.reg_bits = 8,
|
||
|
|
.val_bits = 32,
|
||
|
|
.max_register = RT9120_REG_DIGCFG,
|
||
|
|
|
||
|
|
.reg_read = rt9120_reg_read,
|
||
|
|
.reg_write = rt9120_reg_write,
|
||
|
|
|
||
|
|
.wr_table = &rt9120_wr_table,
|
||
|
|
.rd_table = &rt9120_rd_table,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int rt9120_check_vendor_info(struct rt9120_data *data)
|
||
|
|
{
|
||
|
|
unsigned int devid;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = regmap_read(data->regmap, RT9120_REG_DEVID, &devid);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
devid = FIELD_GET(RT9120_VID_MASK, devid);
|
||
|
|
switch (devid) {
|
||
|
|
case RT9120_VENDOR_ID:
|
||
|
|
data->chip_idx = CHIP_IDX_RT9120;
|
||
|
|
break;
|
||
|
|
case RT9120S_VENDOR_ID:
|
||
|
|
data->chip_idx = CHIP_IDX_RT9120S;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
dev_err(data->dev, "DEVID not correct [0x%0x]\n", devid);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rt9120_do_register_reset(struct rt9120_data *data)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = regmap_write(data->regmap, RT9120_REG_SWRESET,
|
||
|
|
RT9120_SWRST_MASK);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
msleep(RT9120_RESET_WAITMS);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rt9120_probe(struct i2c_client *i2c)
|
||
|
|
{
|
||
|
|
struct rt9120_data *data;
|
||
|
|
struct gpio_desc *pwdnn_gpio;
|
||
|
|
struct regulator *dvdd_supply;
|
||
|
|
int dvdd_supply_volt, ret;
|
||
|
|
|
||
|
|
data = devm_kzalloc(&i2c->dev, sizeof(*data), GFP_KERNEL);
|
||
|
|
if (!data)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
data->dev = &i2c->dev;
|
||
|
|
i2c_set_clientdata(i2c, data);
|
||
|
|
|
||
|
|
pwdnn_gpio = devm_gpiod_get_optional(&i2c->dev, "pwdnn",
|
||
|
|
GPIOD_OUT_HIGH);
|
||
|
|
if (IS_ERR(pwdnn_gpio)) {
|
||
|
|
dev_err(&i2c->dev, "Failed to initialize 'pwdnn' gpio\n");
|
||
|
|
return PTR_ERR(pwdnn_gpio);
|
||
|
|
} else if (pwdnn_gpio) {
|
||
|
|
dev_dbg(&i2c->dev, "'pwdnn' from low to high, wait chip on\n");
|
||
|
|
msleep(RT9120_CHIPON_WAITMS);
|
||
|
|
}
|
||
|
|
|
||
|
|
data->regmap = devm_regmap_init(&i2c->dev, NULL, data,
|
||
|
|
&rt9120_regmap_config);
|
||
|
|
if (IS_ERR(data->regmap)) {
|
||
|
|
ret = PTR_ERR(data->regmap);
|
||
|
|
dev_err(&i2c->dev, "Failed to init regmap [%d]\n", ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = rt9120_check_vendor_info(data);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&i2c->dev, "Failed to check vendor info\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = rt9120_do_register_reset(data);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&i2c->dev, "Failed to do register reset\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
dvdd_supply = devm_regulator_get(&i2c->dev, "dvdd");
|
||
|
|
if (IS_ERR(dvdd_supply)) {
|
||
|
|
dev_err(&i2c->dev, "No dvdd regulator found\n");
|
||
|
|
return PTR_ERR(dvdd_supply);
|
||
|
|
}
|
||
|
|
|
||
|
|
dvdd_supply_volt = regulator_get_voltage(dvdd_supply);
|
||
|
|
if (dvdd_supply_volt <= RT9120_LVAPP_THRESUV) {
|
||
|
|
dev_dbg(&i2c->dev, "dvdd low voltage design\n");
|
||
|
|
ret = regmap_update_bits(data->regmap, RT9120_REG_UVPOPT,
|
||
|
|
RT9120_DVDD_UVSEL_MASK, 0);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&i2c->dev, "Failed to config dvdd uvsel\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return devm_snd_soc_register_component(&i2c->dev,
|
||
|
|
&rt9120_component_driver,
|
||
|
|
&rt9120_dai, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct of_device_id __maybe_unused rt9120_device_table[] = {
|
||
|
|
{ .compatible = "richtek,rt9120", },
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, rt9120_device_table);
|
||
|
|
|
||
|
|
static struct i2c_driver rt9120_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "rt9120",
|
||
|
|
.of_match_table = rt9120_device_table,
|
||
|
|
},
|
||
|
|
.probe_new = rt9120_probe,
|
||
|
|
};
|
||
|
|
module_i2c_driver(rt9120_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
||
|
|
MODULE_DESCRIPTION("RT9120 Audio Amplifier Driver");
|
||
|
|
MODULE_LICENSE("GPL");
|