root/sound/soc/codecs/rt286.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * rt286.c  --  RT286 ALSA SoC audio codec driver
 *
 * Copyright 2013 Realtek Semiconductor Corp.
 * Author: Bard Liao <bardliao@realtek.com>
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/dmi.h>
#include <linux/acpi.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/jack.h>
#include <linux/workqueue.h>
#include <sound/rt286.h>

#include "rl6347a.h"
#include "rt286.h"

#define RT286_VENDOR_ID 0x10ec0286
#define RT288_VENDOR_ID 0x10ec0288

struct rt286_priv {
        struct reg_default *index_cache;
        int index_cache_size;
        struct regmap *regmap;
        struct snd_soc_component *component;
        struct rt286_platform_data pdata;
        struct i2c_client *i2c;
        struct snd_soc_jack *jack;
        struct delayed_work jack_detect_work;
        int sys_clk;
        int clk_id;
};

static const struct reg_default rt286_index_def[] = {
        { 0x01, 0xaaaa },
        { 0x02, 0x8aaa },
        { 0x03, 0x0002 },
        { 0x04, 0xaf01 },
        { 0x08, 0x000d },
        { 0x09, 0xd810 },
        { 0x0a, 0x0120 },
        { 0x0b, 0x0000 },
        { 0x0d, 0x2800 },
        { 0x0f, 0x0000 },
        { 0x19, 0x0a17 },
        { 0x20, 0x0020 },
        { 0x33, 0x0208 },
        { 0x49, 0x0004 },
        { 0x4f, 0x50e9 },
        { 0x50, 0x2000 },
        { 0x63, 0x2902 },
        { 0x67, 0x1111 },
        { 0x68, 0x1016 },
        { 0x69, 0x273f },
};
#define INDEX_CACHE_SIZE ARRAY_SIZE(rt286_index_def)

static const struct reg_default rt286_reg[] = {
        { 0x00170500, 0x00000400 },
        { 0x00220000, 0x00000031 },
        { 0x00239000, 0x0000007f },
        { 0x0023a000, 0x0000007f },
        { 0x00270500, 0x00000400 },
        { 0x00370500, 0x00000400 },
        { 0x00870500, 0x00000400 },
        { 0x00920000, 0x00000031 },
        { 0x00935000, 0x000000c3 },
        { 0x00936000, 0x000000c3 },
        { 0x00970500, 0x00000400 },
        { 0x00b37000, 0x00000097 },
        { 0x00b37200, 0x00000097 },
        { 0x00b37300, 0x00000097 },
        { 0x00c37000, 0x00000000 },
        { 0x00c37100, 0x00000080 },
        { 0x01270500, 0x00000400 },
        { 0x01370500, 0x00000400 },
        { 0x01371f00, 0x411111f0 },
        { 0x01439000, 0x00000080 },
        { 0x0143a000, 0x00000080 },
        { 0x01470700, 0x00000000 },
        { 0x01470500, 0x00000400 },
        { 0x01470c00, 0x00000000 },
        { 0x01470100, 0x00000000 },
        { 0x01837000, 0x00000000 },
        { 0x01870500, 0x00000400 },
        { 0x02050000, 0x00000000 },
        { 0x02139000, 0x00000080 },
        { 0x0213a000, 0x00000080 },
        { 0x02170100, 0x00000000 },
        { 0x02170500, 0x00000400 },
        { 0x02170700, 0x00000000 },
        { 0x02270100, 0x00000000 },
        { 0x02370100, 0x00000000 },
        { 0x01870700, 0x00000020 },
        { 0x00830000, 0x000000c3 },
        { 0x00930000, 0x000000c3 },
        { 0x01270700, 0x00000000 },
};

static bool rt286_volatile_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case 0 ... 0xff:
        case RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID):
        case RT286_GET_HP_SENSE:
        case RT286_GET_MIC1_SENSE:
        case RT286_PROC_COEF:
                return true;
        default:
                return false;
        }


}

static bool rt286_readable_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case 0 ... 0xff:
        case RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID):
        case RT286_GET_HP_SENSE:
        case RT286_GET_MIC1_SENSE:
        case RT286_SET_AUDIO_POWER:
        case RT286_SET_HPO_POWER:
        case RT286_SET_SPK_POWER:
        case RT286_SET_DMIC1_POWER:
        case RT286_SPK_MUX:
        case RT286_HPO_MUX:
        case RT286_ADC0_MUX:
        case RT286_ADC1_MUX:
        case RT286_SET_MIC1:
        case RT286_SET_PIN_HPO:
        case RT286_SET_PIN_SPK:
        case RT286_SET_PIN_DMIC1:
        case RT286_SPK_EAPD:
        case RT286_SET_AMP_GAIN_HPO:
        case RT286_SET_DMIC2_DEFAULT:
        case RT286_DACL_GAIN:
        case RT286_DACR_GAIN:
        case RT286_ADCL_GAIN:
        case RT286_ADCR_GAIN:
        case RT286_MIC_GAIN:
        case RT286_SPOL_GAIN:
        case RT286_SPOR_GAIN:
        case RT286_HPOL_GAIN:
        case RT286_HPOR_GAIN:
        case RT286_F_DAC_SWITCH:
        case RT286_F_RECMIX_SWITCH:
        case RT286_REC_MIC_SWITCH:
        case RT286_REC_I2S_SWITCH:
        case RT286_REC_LINE_SWITCH:
        case RT286_REC_BEEP_SWITCH:
        case RT286_DAC_FORMAT:
        case RT286_ADC_FORMAT:
        case RT286_COEF_INDEX:
        case RT286_PROC_COEF:
        case RT286_SET_AMP_GAIN_ADC_IN1:
        case RT286_SET_AMP_GAIN_ADC_IN2:
        case RT286_SET_GPIO_MASK:
        case RT286_SET_GPIO_DIRECTION:
        case RT286_SET_GPIO_DATA:
        case RT286_SET_POWER(RT286_DAC_OUT1):
        case RT286_SET_POWER(RT286_DAC_OUT2):
        case RT286_SET_POWER(RT286_ADC_IN1):
        case RT286_SET_POWER(RT286_ADC_IN2):
        case RT286_SET_POWER(RT286_DMIC2):
        case RT286_SET_POWER(RT286_MIC1):
                return true;
        default:
                return false;
        }
}

#ifdef CONFIG_PM
static void rt286_index_sync(struct snd_soc_component *component)
{
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);
        int i;

        for (i = 0; i < INDEX_CACHE_SIZE; i++) {
                snd_soc_component_write(component, rt286->index_cache[i].reg,
                                  rt286->index_cache[i].def);
        }
}
#endif

static int rt286_support_power_controls[] = {
        RT286_DAC_OUT1,
        RT286_DAC_OUT2,
        RT286_ADC_IN1,
        RT286_ADC_IN2,
        RT286_MIC1,
        RT286_DMIC1,
        RT286_DMIC2,
        RT286_SPK_OUT,
        RT286_HP_OUT,
};
#define RT286_POWER_REG_LEN ARRAY_SIZE(rt286_support_power_controls)

static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
{
        struct snd_soc_dapm_context *dapm;
        unsigned int val, buf;

        *hp = false;
        *mic = false;

        if (!rt286->component)
                return -EINVAL;

        dapm = snd_soc_component_to_dapm(rt286->component);

        if (rt286->pdata.cbj_en) {
                regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf);
                *hp = buf & 0x80000000;
                if (*hp) {
                        /* power on HV,VERF */
                        regmap_update_bits(rt286->regmap,
                                RT286_DC_GAIN, 0x200, 0x200);

                        snd_soc_dapm_force_enable_pin(dapm, "HV");
                        snd_soc_dapm_force_enable_pin(dapm, "VREF");
                        /* power LDO1 */
                        snd_soc_dapm_force_enable_pin(dapm, "LDO1");
                        snd_soc_dapm_sync(dapm);

                        regmap_write(rt286->regmap, RT286_SET_MIC1, 0x24);
                        msleep(50);

                        regmap_update_bits(rt286->regmap,
                                RT286_CBJ_CTRL1, 0xfcc0, 0xd400);
                        msleep(300);
                        regmap_read(rt286->regmap, RT286_CBJ_CTRL2, &val);

                        if (0x0070 == (val & 0x0070)) {
                                *mic = true;
                        } else {
                                regmap_update_bits(rt286->regmap,
                                        RT286_CBJ_CTRL1, 0xfcc0, 0xe400);
                                msleep(300);
                                regmap_read(rt286->regmap,
                                        RT286_CBJ_CTRL2, &val);
                                if (0x0070 == (val & 0x0070)) {
                                        *mic = true;
                                } else {
                                        *mic = false;
                                        regmap_update_bits(rt286->regmap,
                                                RT286_CBJ_CTRL1,
                                                0xfcc0, 0xc400);
                                }
                        }

                        regmap_update_bits(rt286->regmap,
                                RT286_DC_GAIN, 0x200, 0x0);

                } else {
                        *mic = false;
                        regmap_write(rt286->regmap, RT286_SET_MIC1, 0x20);
                        regmap_update_bits(rt286->regmap,
                                RT286_CBJ_CTRL1, 0x0400, 0x0000);
                }
        } else {
                regmap_read(rt286->regmap, RT286_GET_HP_SENSE, &buf);
                *hp = buf & 0x80000000;
                regmap_read(rt286->regmap, RT286_GET_MIC1_SENSE, &buf);
                *mic = buf & 0x80000000;
        }

        if (!*hp) {
                snd_soc_dapm_disable_pin(dapm, "HV");
                snd_soc_dapm_disable_pin(dapm, "VREF");
                snd_soc_dapm_disable_pin(dapm, "LDO1");
                snd_soc_dapm_sync(dapm);
        }

        return 0;
}

static void rt286_jack_detect_work(struct work_struct *work)
{
        struct rt286_priv *rt286 =
                container_of(work, struct rt286_priv, jack_detect_work.work);
        int status = 0;
        bool hp = false;
        bool mic = false;

        rt286_jack_detect(rt286, &hp, &mic);

        if (hp)
                status |= SND_JACK_HEADPHONE;

        if (mic)
                status |= SND_JACK_MICROPHONE;

        snd_soc_jack_report(rt286->jack, status,
                SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
}

static int rt286_mic_detect(struct snd_soc_component *component,
                            struct snd_soc_jack *jack, void *data)
{
        struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        rt286->jack = jack;

        if (jack) {
                /* enable IRQ */
                if (rt286->jack->status & SND_JACK_HEADPHONE)
                        snd_soc_dapm_force_enable_pin(dapm, "LDO1");
                regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x2, 0x2);
                /* Send an initial empty report */
                snd_soc_jack_report(rt286->jack, rt286->jack->status,
                        SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
        } else {
                /* disable IRQ */
                regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x2, 0x0);
                snd_soc_dapm_disable_pin(dapm, "LDO1");
        }
        snd_soc_dapm_sync(dapm);

        return 0;
}

static int is_mclk_mode(struct snd_soc_dapm_widget *source,
                         struct snd_soc_dapm_widget *sink)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        if (rt286->clk_id == RT286_SCLK_S_MCLK)
                return 1;
        else
                return 0;
}

static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6350, 50, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);

static const struct snd_kcontrol_new rt286_snd_controls[] = {
        SOC_DOUBLE_R_TLV("DAC0 Playback Volume", RT286_DACL_GAIN,
                            RT286_DACR_GAIN, 0, 0x7f, 0, out_vol_tlv),
        SOC_DOUBLE_R("ADC0 Capture Switch", RT286_ADCL_GAIN,
                            RT286_ADCR_GAIN, 7, 1, 1),
        SOC_DOUBLE_R_TLV("ADC0 Capture Volume", RT286_ADCL_GAIN,
                            RT286_ADCR_GAIN, 0, 0x7f, 0, out_vol_tlv),
        SOC_SINGLE_TLV("AMIC Volume", RT286_MIC_GAIN,
                            0, 0x3, 0, mic_vol_tlv),
        SOC_DOUBLE_R("Speaker Playback Switch", RT286_SPOL_GAIN,
                            RT286_SPOR_GAIN, RT286_MUTE_SFT, 1, 1),
};

/* Digital Mixer */
static const struct snd_kcontrol_new rt286_front_mix[] = {
        SOC_DAPM_SINGLE("DAC Switch",  RT286_F_DAC_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
        SOC_DAPM_SINGLE("RECMIX Switch", RT286_F_RECMIX_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
};

/* Analog Input Mixer */
static const struct snd_kcontrol_new rt286_rec_mix[] = {
        SOC_DAPM_SINGLE("Mic1 Switch", RT286_REC_MIC_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
        SOC_DAPM_SINGLE("I2S Switch", RT286_REC_I2S_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
        SOC_DAPM_SINGLE("Line1 Switch", RT286_REC_LINE_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
        SOC_DAPM_SINGLE("Beep Switch", RT286_REC_BEEP_SWITCH,
                        RT286_MUTE_SFT, 1, 1),
};

static const struct snd_kcontrol_new spo_enable_control =
        SOC_DAPM_SINGLE("Switch", RT286_SET_PIN_SPK,
                        RT286_SET_PIN_SFT, 1, 0);

static const struct snd_kcontrol_new hpol_enable_control =
        SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT286_HPOL_GAIN,
                        RT286_MUTE_SFT, 1, 1);

static const struct snd_kcontrol_new hpor_enable_control =
        SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT286_HPOR_GAIN,
                        RT286_MUTE_SFT, 1, 1);

/* ADC0 source */
static const char * const rt286_adc_src[] = {
        "Mic", "RECMIX", "Dmic"
};

static const int rt286_adc_values[] = {
        0, 4, 5,
};

static SOC_VALUE_ENUM_SINGLE_DECL(
        rt286_adc0_enum, RT286_ADC0_MUX, RT286_ADC_SEL_SFT,
        RT286_ADC_SEL_MASK, rt286_adc_src, rt286_adc_values);

static const struct snd_kcontrol_new rt286_adc0_mux =
        SOC_DAPM_ENUM("ADC 0 source", rt286_adc0_enum);

static SOC_VALUE_ENUM_SINGLE_DECL(
        rt286_adc1_enum, RT286_ADC1_MUX, RT286_ADC_SEL_SFT,
        RT286_ADC_SEL_MASK, rt286_adc_src, rt286_adc_values);

static const struct snd_kcontrol_new rt286_adc1_mux =
        SOC_DAPM_ENUM("ADC 1 source", rt286_adc1_enum);

static const char * const rt286_dac_src[] = {
        "Front", "Surround"
};
/* HP-OUT source */
static SOC_ENUM_SINGLE_DECL(rt286_hpo_enum, RT286_HPO_MUX,
                                0, rt286_dac_src);

static const struct snd_kcontrol_new rt286_hpo_mux =
SOC_DAPM_ENUM("HPO source", rt286_hpo_enum);

/* SPK-OUT source */
static SOC_ENUM_SINGLE_DECL(rt286_spo_enum, RT286_SPK_MUX,
                                0, rt286_dac_src);

static const struct snd_kcontrol_new rt286_spo_mux =
SOC_DAPM_ENUM("SPO source", rt286_spo_enum);

static int rt286_spk_event(struct snd_soc_dapm_widget *w,
                            struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
                snd_soc_component_write(component,
                        RT286_SPK_EAPD, RT286_SET_EAPD_HIGH);
                break;
        case SND_SOC_DAPM_PRE_PMD:
                snd_soc_component_write(component,
                        RT286_SPK_EAPD, RT286_SET_EAPD_LOW);
                break;

        default:
                return 0;
        }

        return 0;
}

static int rt286_set_dmic1_event(struct snd_soc_dapm_widget *w,
                                  struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
                snd_soc_component_write(component, RT286_SET_PIN_DMIC1, 0x20);
                break;
        case SND_SOC_DAPM_PRE_PMD:
                snd_soc_component_write(component, RT286_SET_PIN_DMIC1, 0);
                break;
        default:
                return 0;
        }

        return 0;
}

static int rt286_ldo2_event(struct snd_soc_dapm_widget *w,
                             struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
                snd_soc_component_update_bits(component, RT286_POWER_CTRL2, 0x38, 0x08);
                break;
        case SND_SOC_DAPM_PRE_PMD:
                snd_soc_component_update_bits(component, RT286_POWER_CTRL2, 0x38, 0x30);
                break;
        default:
                return 0;
        }

        return 0;
}

static int rt286_mic1_event(struct snd_soc_dapm_widget *w,
                             struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

        switch (event) {
        case SND_SOC_DAPM_PRE_PMU:
                snd_soc_component_update_bits(component,
                        RT286_A_BIAS_CTRL3, 0xc000, 0x8000);
                snd_soc_component_update_bits(component,
                        RT286_A_BIAS_CTRL2, 0xc000, 0x8000);
                break;
        case SND_SOC_DAPM_POST_PMD:
                snd_soc_component_update_bits(component,
                        RT286_A_BIAS_CTRL3, 0xc000, 0x0000);
                snd_soc_component_update_bits(component,
                        RT286_A_BIAS_CTRL2, 0xc000, 0x0000);
                break;
        default:
                return 0;
        }

        return 0;
}

static const struct snd_soc_dapm_widget rt286_dapm_widgets[] = {
        SND_SOC_DAPM_SUPPLY_S("HV", 1, RT286_POWER_CTRL1,
                12, 1, NULL, 0),
        SND_SOC_DAPM_SUPPLY("VREF", RT286_POWER_CTRL1,
                0, 1, NULL, 0),
        SND_SOC_DAPM_SUPPLY_S("LDO1", 1, RT286_POWER_CTRL2,
                2, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY_S("LDO2", 2, RT286_POWER_CTRL1,
                13, 1, rt286_ldo2_event, SND_SOC_DAPM_PRE_PMD |
                SND_SOC_DAPM_POST_PMU),
        SND_SOC_DAPM_SUPPLY("MCLK MODE", RT286_PLL_CTRL1,
                5, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("MIC1 Input Buffer", SND_SOC_NOPM,
                0, 0, rt286_mic1_event, SND_SOC_DAPM_PRE_PMU |
                SND_SOC_DAPM_POST_PMD),

        /* Input Lines */
        SND_SOC_DAPM_INPUT("DMIC1 Pin"),
        SND_SOC_DAPM_INPUT("DMIC2 Pin"),
        SND_SOC_DAPM_INPUT("MIC1"),
        SND_SOC_DAPM_INPUT("LINE1"),
        SND_SOC_DAPM_INPUT("Beep"),

        /* DMIC */
        SND_SOC_DAPM_PGA_E("DMIC1", RT286_SET_POWER(RT286_DMIC1), 0, 1,
                NULL, 0, rt286_set_dmic1_event,
                SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
        SND_SOC_DAPM_PGA("DMIC2", RT286_SET_POWER(RT286_DMIC2), 0, 1,
                NULL, 0),
        SND_SOC_DAPM_SUPPLY("DMIC Receiver", SND_SOC_NOPM,
                0, 0, NULL, 0),

        /* REC Mixer */
        SND_SOC_DAPM_MIXER("RECMIX", SND_SOC_NOPM, 0, 0,
                rt286_rec_mix, ARRAY_SIZE(rt286_rec_mix)),

        /* ADCs */
        SND_SOC_DAPM_ADC("ADC 0", NULL, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_ADC("ADC 1", NULL, SND_SOC_NOPM, 0, 0),

        /* ADC Mux */
        SND_SOC_DAPM_MUX("ADC 0 Mux", RT286_SET_POWER(RT286_ADC_IN1), 0, 1,
                &rt286_adc0_mux),
        SND_SOC_DAPM_MUX("ADC 1 Mux", RT286_SET_POWER(RT286_ADC_IN2), 0, 1,
                &rt286_adc1_mux),

        /* Audio Interface */
        SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_AIF_IN("AIF2RX", "AIF2 Playback", 0, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_AIF_OUT("AIF2TX", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0),

        /* Output Side */
        /* DACs */
        SND_SOC_DAPM_DAC("DAC 0", NULL, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_DAC("DAC 1", NULL, SND_SOC_NOPM, 0, 0),

        /* Output Mux */
        SND_SOC_DAPM_MUX("SPK Mux", SND_SOC_NOPM, 0, 0, &rt286_spo_mux),
        SND_SOC_DAPM_MUX("HPO Mux", SND_SOC_NOPM, 0, 0, &rt286_hpo_mux),

        SND_SOC_DAPM_SUPPLY("HP Power", RT286_SET_PIN_HPO,
                RT286_SET_PIN_SFT, 0, NULL, 0),

        /* Output Mixer */
        SND_SOC_DAPM_MIXER("Front", RT286_SET_POWER(RT286_DAC_OUT1), 0, 1,
                        rt286_front_mix, ARRAY_SIZE(rt286_front_mix)),
        SND_SOC_DAPM_PGA("Surround", RT286_SET_POWER(RT286_DAC_OUT2), 0, 1,
                        NULL, 0),

        /* Output Pga */
        SND_SOC_DAPM_SWITCH_E("SPO", SND_SOC_NOPM, 0, 0,
                &spo_enable_control, rt286_spk_event,
                SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
        SND_SOC_DAPM_SWITCH("HPO L", SND_SOC_NOPM, 0, 0,
                &hpol_enable_control),
        SND_SOC_DAPM_SWITCH("HPO R", SND_SOC_NOPM, 0, 0,
                &hpor_enable_control),

        /* Output Lines */
        SND_SOC_DAPM_OUTPUT("SPOL"),
        SND_SOC_DAPM_OUTPUT("SPOR"),
        SND_SOC_DAPM_OUTPUT("HPO Pin"),
        SND_SOC_DAPM_OUTPUT("SPDIF"),
};

static const struct snd_soc_dapm_route rt286_dapm_routes[] = {
        {"ADC 0", NULL, "MCLK MODE", is_mclk_mode},
        {"ADC 1", NULL, "MCLK MODE", is_mclk_mode},
        {"Front", NULL, "MCLK MODE", is_mclk_mode},
        {"Surround", NULL, "MCLK MODE", is_mclk_mode},

        {"HP Power", NULL, "LDO1"},
        {"HP Power", NULL, "LDO2"},

        {"MIC1", NULL, "LDO1"},
        {"MIC1", NULL, "LDO2"},
        {"MIC1", NULL, "HV"},
        {"MIC1", NULL, "VREF"},
        {"MIC1", NULL, "MIC1 Input Buffer"},

        {"SPO", NULL, "LDO1"},
        {"SPO", NULL, "LDO2"},
        {"SPO", NULL, "HV"},
        {"SPO", NULL, "VREF"},

        {"DMIC1", NULL, "DMIC1 Pin"},
        {"DMIC2", NULL, "DMIC2 Pin"},
        {"DMIC1", NULL, "DMIC Receiver"},
        {"DMIC2", NULL, "DMIC Receiver"},

        {"RECMIX", "Beep Switch", "Beep"},
        {"RECMIX", "Line1 Switch", "LINE1"},
        {"RECMIX", "Mic1 Switch", "MIC1"},

        {"ADC 0 Mux", "Dmic", "DMIC1"},
        {"ADC 0 Mux", "RECMIX", "RECMIX"},
        {"ADC 0 Mux", "Mic", "MIC1"},
        {"ADC 1 Mux", "Dmic", "DMIC2"},
        {"ADC 1 Mux", "RECMIX", "RECMIX"},
        {"ADC 1 Mux", "Mic", "MIC1"},

        {"ADC 0", NULL, "ADC 0 Mux"},
        {"ADC 1", NULL, "ADC 1 Mux"},

        {"AIF1TX", NULL, "ADC 0"},
        {"AIF2TX", NULL, "ADC 1"},

        {"DAC 0", NULL, "AIF1RX"},
        {"DAC 1", NULL, "AIF2RX"},

        {"Front", "DAC Switch", "DAC 0"},
        {"Front", "RECMIX Switch", "RECMIX"},

        {"Surround", NULL, "DAC 1"},

        {"SPK Mux", "Front", "Front"},
        {"SPK Mux", "Surround", "Surround"},

        {"HPO Mux", "Front", "Front"},
        {"HPO Mux", "Surround", "Surround"},

        {"SPO", "Switch", "SPK Mux"},
        {"HPO L", "Switch", "HPO Mux"},
        {"HPO R", "Switch", "HPO Mux"},
        {"HPO L", NULL, "HP Power"},
        {"HPO R", NULL, "HP Power"},

        {"SPOL", NULL, "SPO"},
        {"SPOR", NULL, "SPO"},
        {"HPO Pin", NULL, "HPO L"},
        {"HPO Pin", NULL, "HPO R"},
};

static int rt286_hw_params(struct snd_pcm_substream *substream,
                            struct snd_pcm_hw_params *params,
                            struct snd_soc_dai *dai)
{
        struct snd_soc_component *component = dai->component;
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);
        unsigned int val = 0;
        int d_len_code;

        switch (params_rate(params)) {
        /* bit 14 0:48K 1:44.1K */
        case 44100:
                val |= 0x4000;
                break;
        case 48000:
                break;
        default:
                dev_err(component->dev, "Unsupported sample rate %d\n",
                                        params_rate(params));
                return -EINVAL;
        }
        switch (rt286->sys_clk) {
        case 12288000:
        case 24576000:
                if (params_rate(params) != 48000) {
                        dev_err(component->dev, "Sys_clk is not matched (%d %d)\n",
                                        params_rate(params), rt286->sys_clk);
                        return -EINVAL;
                }
                break;
        case 11289600:
        case 22579200:
                if (params_rate(params) != 44100) {
                        dev_err(component->dev, "Sys_clk is not matched (%d %d)\n",
                                        params_rate(params), rt286->sys_clk);
                        return -EINVAL;
                }
                break;
        }

        if (params_channels(params) <= 16) {
                /* bit 3:0 Number of Channel */
                val |= (params_channels(params) - 1);
        } else {
                dev_err(component->dev, "Unsupported channels %d\n",
                                        params_channels(params));
                return -EINVAL;
        }

        switch (params_width(params)) {
        /* bit 6:4 Bits per Sample */
        case 16:
                d_len_code = 0;
                val |= (0x1 << 4);
                break;
        case 32:
                d_len_code = 2;
                val |= (0x4 << 4);
                break;
        case 20:
                d_len_code = 1;
                val |= (0x2 << 4);
                break;
        case 24:
                d_len_code = 2;
                val |= (0x3 << 4);
                break;
        case 8:
                d_len_code = 3;
                break;
        default:
                return -EINVAL;
        }

        snd_soc_component_update_bits(component,
                RT286_I2S_CTRL1, 0x0018, d_len_code << 3);
        dev_dbg(component->dev, "format val = 0x%x\n", val);

        snd_soc_component_update_bits(component, RT286_DAC_FORMAT, 0x407f, val);
        snd_soc_component_update_bits(component, RT286_ADC_FORMAT, 0x407f, val);

        return 0;
}

static int rt286_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
        struct snd_soc_component *component = dai->component;

        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
        case SND_SOC_DAIFMT_CBP_CFP:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x800, 0x800);
                break;
        case SND_SOC_DAIFMT_CBC_CFC:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x800, 0x0);
                break;
        default:
                return -EINVAL;
        }

        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
        case SND_SOC_DAIFMT_I2S:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x300, 0x0);
                break;
        case SND_SOC_DAIFMT_LEFT_J:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x300, 0x1 << 8);
                break;
        case SND_SOC_DAIFMT_DSP_A:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x300, 0x2 << 8);
                break;
        case SND_SOC_DAIFMT_DSP_B:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x300, 0x3 << 8);
                break;
        default:
                return -EINVAL;
        }
        /* bit 15 Stream Type 0:PCM 1:Non-PCM */
        snd_soc_component_update_bits(component, RT286_DAC_FORMAT, 0x8000, 0);
        snd_soc_component_update_bits(component, RT286_ADC_FORMAT, 0x8000, 0);

        return 0;
}

static int rt286_set_dai_sysclk(struct snd_soc_dai *dai,
                                int clk_id, unsigned int freq, int dir)
{
        struct snd_soc_component *component = dai->component;
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        dev_dbg(component->dev, "%s freq=%d\n", __func__, freq);

        if (RT286_SCLK_S_MCLK == clk_id) {
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x0100, 0x0);
                snd_soc_component_update_bits(component,
                        RT286_PLL_CTRL1, 0x20, 0x20);
        } else {
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x0100, 0x0100);
                snd_soc_component_update_bits(component,
                        RT286_PLL_CTRL, 0x4, 0x4);
                snd_soc_component_update_bits(component,
                        RT286_PLL_CTRL1, 0x20, 0x0);
        }

        switch (freq) {
        case 19200000:
                if (RT286_SCLK_S_MCLK == clk_id) {
                        dev_err(component->dev, "Should not use MCLK\n");
                        return -EINVAL;
                }
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x40, 0x40);
                break;
        case 24000000:
                if (RT286_SCLK_S_MCLK == clk_id) {
                        dev_err(component->dev, "Should not use MCLK\n");
                        return -EINVAL;
                }
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x40, 0x0);
                break;
        case 12288000:
        case 11289600:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x8, 0x0);
                snd_soc_component_update_bits(component,
                        RT286_CLK_DIV, 0xfc1e, 0x0004);
                break;
        case 24576000:
        case 22579200:
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL2, 0x8, 0x8);
                snd_soc_component_update_bits(component,
                        RT286_CLK_DIV, 0xfc1e, 0x5406);
                break;
        default:
                dev_err(component->dev, "Unsupported system clock\n");
                return -EINVAL;
        }

        rt286->sys_clk = freq;
        rt286->clk_id = clk_id;

        return 0;
}

static int rt286_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
{
        struct snd_soc_component *component = dai->component;

        dev_dbg(component->dev, "%s ratio=%d\n", __func__, ratio);
        if (50 == ratio)
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x1000, 0x1000);
        else
                snd_soc_component_update_bits(component,
                        RT286_I2S_CTRL1, 0x1000, 0x0);


        return 0;
}

static int rt286_set_bias_level(struct snd_soc_component *component,
                                 enum snd_soc_bias_level level)
{
        struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);

        switch (level) {
        case SND_SOC_BIAS_PREPARE:
                if (SND_SOC_BIAS_STANDBY == snd_soc_dapm_get_bias_level(dapm)) {
                        snd_soc_component_write(component,
                                RT286_SET_AUDIO_POWER, AC_PWRST_D0);
                        snd_soc_component_update_bits(component,
                                RT286_DC_GAIN, 0x200, 0x200);
                }
                break;

        case SND_SOC_BIAS_ON:
                mdelay(10);
                snd_soc_component_update_bits(component,
                        RT286_DC_GAIN, 0x200, 0x0);

                break;

        case SND_SOC_BIAS_STANDBY:
                snd_soc_component_write(component,
                        RT286_SET_AUDIO_POWER, AC_PWRST_D3);
                break;

        default:
                break;
        }

        return 0;
}

static irqreturn_t rt286_irq(int irq, void *data)
{
        struct rt286_priv *rt286 = data;
        bool hp = false;
        bool mic = false;
        int status = 0;

        rt286_jack_detect(rt286, &hp, &mic);

        /* Clear IRQ */
        regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x1, 0x1);

        if (hp)
                status |= SND_JACK_HEADPHONE;

        if (mic)
                status |= SND_JACK_MICROPHONE;

        snd_soc_jack_report(rt286->jack, status,
                SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);

        pm_wakeup_event(&rt286->i2c->dev, 300);

        return IRQ_HANDLED;
}

static int rt286_probe(struct snd_soc_component *component)
{
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        rt286->component = component;
        INIT_DELAYED_WORK(&rt286->jack_detect_work, rt286_jack_detect_work);

        if (rt286->i2c->irq)
                schedule_delayed_work(&rt286->jack_detect_work,
                                      msecs_to_jiffies(50));
        return 0;
}

static void rt286_remove(struct snd_soc_component *component)
{
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        cancel_delayed_work_sync(&rt286->jack_detect_work);
        rt286->component = NULL;
}

#ifdef CONFIG_PM
static int rt286_suspend(struct snd_soc_component *component)
{
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        regcache_cache_only(rt286->regmap, true);
        regcache_mark_dirty(rt286->regmap);

        return 0;
}

static int rt286_resume(struct snd_soc_component *component)
{
        struct rt286_priv *rt286 = snd_soc_component_get_drvdata(component);

        regcache_cache_only(rt286->regmap, false);
        rt286_index_sync(component);
        regcache_sync(rt286->regmap);

        return 0;
}
#else
#define rt286_suspend NULL
#define rt286_resume NULL
#endif

#define RT286_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
#define RT286_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
                        SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)

static const struct snd_soc_dai_ops rt286_aif_dai_ops = {
        .hw_params = rt286_hw_params,
        .set_fmt = rt286_set_dai_fmt,
        .set_sysclk = rt286_set_dai_sysclk,
        .set_bclk_ratio = rt286_set_bclk_ratio,
};

static struct snd_soc_dai_driver rt286_dai[] = {
        {
                .name = "rt286-aif1",
                .id = RT286_AIF1,
                .playback = {
                        .stream_name = "AIF1 Playback",
                        .channels_min = 1,
                        .channels_max = 2,
                        .rates = RT286_STEREO_RATES,
                        .formats = RT286_FORMATS,
                },
                .capture = {
                        .stream_name = "AIF1 Capture",
                        .channels_min = 1,
                        .channels_max = 2,
                        .rates = RT286_STEREO_RATES,
                        .formats = RT286_FORMATS,
                },
                .ops = &rt286_aif_dai_ops,
                .symmetric_rate = 1,
        },
        {
                .name = "rt286-aif2",
                .id = RT286_AIF2,
                .playback = {
                        .stream_name = "AIF2 Playback",
                        .channels_min = 1,
                        .channels_max = 2,
                        .rates = RT286_STEREO_RATES,
                        .formats = RT286_FORMATS,
                },
                .capture = {
                        .stream_name = "AIF2 Capture",
                        .channels_min = 1,
                        .channels_max = 2,
                        .rates = RT286_STEREO_RATES,
                        .formats = RT286_FORMATS,
                },
                .ops = &rt286_aif_dai_ops,
                .symmetric_rate = 1,
        },

};

static const struct snd_soc_component_driver soc_component_dev_rt286 = {
        .probe                  = rt286_probe,
        .remove                 = rt286_remove,
        .suspend                = rt286_suspend,
        .resume                 = rt286_resume,
        .set_bias_level         = rt286_set_bias_level,
        .set_jack               = rt286_mic_detect,
        .controls               = rt286_snd_controls,
        .num_controls           = ARRAY_SIZE(rt286_snd_controls),
        .dapm_widgets           = rt286_dapm_widgets,
        .num_dapm_widgets       = ARRAY_SIZE(rt286_dapm_widgets),
        .dapm_routes            = rt286_dapm_routes,
        .num_dapm_routes        = ARRAY_SIZE(rt286_dapm_routes),
        .use_pmdown_time        = 1,
        .endianness             = 1,
};

static const struct regmap_config rt286_regmap = {
        .reg_bits = 32,
        .val_bits = 32,
        .max_register = 0x02370100,
        .volatile_reg = rt286_volatile_register,
        .readable_reg = rt286_readable_register,
        .reg_write = rl6347a_hw_write,
        .reg_read = rl6347a_hw_read,
        .cache_type = REGCACHE_RBTREE,
        .reg_defaults = rt286_reg,
        .num_reg_defaults = ARRAY_SIZE(rt286_reg),
};

static const struct i2c_device_id rt286_i2c_id[] = {
        {"rt286"},
        {"rt288"},
        {}
};
MODULE_DEVICE_TABLE(i2c, rt286_i2c_id);

#ifdef CONFIG_ACPI
static const struct acpi_device_id rt286_acpi_match[] = {
        { "10EC0286" },
        { "INT343A" },
        { }
};
MODULE_DEVICE_TABLE(acpi, rt286_acpi_match);
#endif

static const struct dmi_system_id force_combo_jack_table[] = {
        {
                .ident = "Intel Wilson Beach",
                .matches = {
                        DMI_MATCH(DMI_BOARD_NAME, "Wilson Beach SDS")
                }
        },
        {
                .ident = "Intel Skylake RVP",
                .matches = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "Skylake Client platform")
                }
        },
        {
                .ident = "Intel Kabylake RVP",
                .matches = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "Kabylake Client platform")
                }
        },
        {
                .ident = "Thinkpad Helix 2nd",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix 2nd")
                }
        },

        { }
};

static const struct dmi_system_id dmi_dell[] = {
        {
                .ident = "Dell",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                }
        },
        { }
};

static int rt286_i2c_probe(struct i2c_client *i2c)
{
        struct rt286_platform_data *pdata = dev_get_platdata(&i2c->dev);
        struct rt286_priv *rt286;
        int i, ret, vendor_id;

        rt286 = devm_kzalloc(&i2c->dev, sizeof(*rt286),
                                GFP_KERNEL);
        if (NULL == rt286)
                return -ENOMEM;

        rt286->regmap = devm_regmap_init(&i2c->dev, NULL, i2c, &rt286_regmap);
        if (IS_ERR(rt286->regmap)) {
                ret = PTR_ERR(rt286->regmap);
                dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
                        ret);
                return ret;
        }

        ret = regmap_read(rt286->regmap,
                RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &vendor_id);
        if (ret != 0) {
                dev_err(&i2c->dev, "I2C error %d\n", ret);
                return ret;
        }
        if (vendor_id != RT286_VENDOR_ID && vendor_id != RT288_VENDOR_ID) {
                dev_err(&i2c->dev,
                        "Device with ID register %#x is not rt286\n",
                        vendor_id);
                return -ENODEV;
        }

        rt286->index_cache = devm_kmemdup(&i2c->dev, rt286_index_def,
                                          sizeof(rt286_index_def), GFP_KERNEL);
        if (!rt286->index_cache)
                return -ENOMEM;

        rt286->index_cache_size = INDEX_CACHE_SIZE;
        rt286->i2c = i2c;
        i2c_set_clientdata(i2c, rt286);

        /* restore codec default */
        for (i = 0; i < INDEX_CACHE_SIZE; i++)
                regmap_write(rt286->regmap, rt286->index_cache[i].reg,
                                rt286->index_cache[i].def);
        for (i = 0; i < ARRAY_SIZE(rt286_reg); i++)
                regmap_write(rt286->regmap, rt286_reg[i].reg,
                                rt286_reg[i].def);

        if (pdata)
                rt286->pdata = *pdata;

        if ((vendor_id == RT288_VENDOR_ID && dmi_check_system(dmi_dell)) ||
                dmi_check_system(force_combo_jack_table))
                rt286->pdata.cbj_en = true;

        regmap_write(rt286->regmap, RT286_SET_AUDIO_POWER, AC_PWRST_D3);

        for (i = 0; i < RT286_POWER_REG_LEN; i++)
                regmap_write(rt286->regmap,
                        RT286_SET_POWER(rt286_support_power_controls[i]),
                        AC_PWRST_D1);

        if (!rt286->pdata.cbj_en) {
                regmap_write(rt286->regmap, RT286_CBJ_CTRL2, 0x0000);
                regmap_write(rt286->regmap, RT286_MIC1_DET_CTRL, 0x0816);
                regmap_update_bits(rt286->regmap,
                                        RT286_CBJ_CTRL1, 0xf000, 0xb000);
        } else {
                regmap_update_bits(rt286->regmap,
                                        RT286_CBJ_CTRL1, 0xf000, 0x5000);
        }

        mdelay(10);

        if (!rt286->pdata.gpio2_en)
                regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0x40);
        else
                regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0);

        mdelay(10);

        regmap_write(rt286->regmap, RT286_MISC_CTRL1, 0x0000);
        /* Power down LDO, VREF */
        regmap_update_bits(rt286->regmap, RT286_POWER_CTRL2, 0xc, 0x0);
        regmap_update_bits(rt286->regmap, RT286_POWER_CTRL1, 0x1001, 0x1001);

        /* Set depop parameter */
        regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL2, 0x403a, 0x401a);
        regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL3, 0xf777, 0x4737);
        regmap_update_bits(rt286->regmap, RT286_DEPOP_CTRL4, 0x00ff, 0x003f);

        if (vendor_id == RT288_VENDOR_ID && dmi_check_system(dmi_dell)) {
                regmap_update_bits(rt286->regmap,
                        RT286_SET_GPIO_MASK, 0x40, 0x40);
                regmap_update_bits(rt286->regmap,
                        RT286_SET_GPIO_DIRECTION, 0x40, 0x40);
                regmap_update_bits(rt286->regmap,
                        RT286_SET_GPIO_DATA, 0x40, 0x40);
                regmap_update_bits(rt286->regmap,
                        RT286_GPIO_CTRL, 0xc, 0x8);
        }

        if (rt286->i2c->irq) {
                ret = devm_request_threaded_irq(&rt286->i2c->dev, rt286->i2c->irq, NULL, rt286_irq,
                        IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt286", rt286);
                if (ret != 0) {
                        dev_err(&i2c->dev,
                                "Failed to request IRQ: %d\n", ret);
                        return ret;
                }
        }

        ret = devm_snd_soc_register_component(&i2c->dev,
                                     &soc_component_dev_rt286,
                                     rt286_dai, ARRAY_SIZE(rt286_dai));

        return ret;
}

static struct i2c_driver rt286_i2c_driver = {
        .driver = {
                   .name = "rt286",
                   .acpi_match_table = ACPI_PTR(rt286_acpi_match),
                   },
        .probe = rt286_i2c_probe,
        .id_table = rt286_i2c_id,
};

module_i2c_driver(rt286_i2c_driver);

MODULE_DESCRIPTION("ASoC RT286 driver");
MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>");
MODULE_LICENSE("GPL");