text: // SPDX-License-Identifier: GPL-2.0-only
  /*
   * rt298.c  --  RT298 ALSA SoC audio codec driver
   *
   * Copyright 2015 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/rt298.h>
  
  #include "rl6347a.h"
  #include "rt298.h"
  
  #define RT298_VENDOR_ID 0x10ec0298
  
  struct rt298_priv {
  	struct reg_default *index_cache;
  	int index_cache_size;
  	struct regmap *regmap;
  	struct snd_soc_component *component;
  	struct rt298_platform_data pdata;
  	struct i2c_client *i2c;
  	struct snd_soc_jack *jack;
  	struct delayed_work jack_detect_work;
  	int sys_clk;
  	int clk_id;
  	int is_hp_in;
  };
  
  static const struct reg_default rt298_index_def[] = {
  	{ 0x01, 0xa5a8 },
  	{ 0x02, 0x8e95 },
  	{ 0x03, 0x0002 },
  	{ 0x04, 0xaf67 },
  	{ 0x08, 0x200f },
  	{ 0x09, 0xd010 },
  	{ 0x0a, 0x0100 },
  	{ 0x0b, 0x0000 },
  	{ 0x0d, 0x2800 },
  	{ 0x0f, 0x0022 },
  	{ 0x19, 0x0217 },
  	{ 0x20, 0x0020 },
  	{ 0x33, 0x0208 },
  	{ 0x46, 0x0300 },
  	{ 0x49, 0x4004 },
  	{ 0x4f, 0x50c9 },
  	{ 0x50, 0x3000 },
  	{ 0x63, 0x1b02 },
  	{ 0x67, 0x1111 },
  	{ 0x68, 0x1016 },
  	{ 0x69, 0x273f },
  };
  #define INDEX_CACHE_SIZE ARRAY_SIZE(rt298_index_def)
  
  static const struct reg_default rt298_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 rt298_volatile_register(struct device *dev, unsigned int reg)
  {
  	switch (reg) {
  	case 0 ... 0xff:
  	case RT298_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID):
  	case RT298_GET_HP_SENSE:
  	case RT298_GET_MIC1_SENSE:
  	case RT298_PROC_COEF:
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_MIC1, 0):
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_SPK_OUT, 0):
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_HP_OUT, 0):
  		return true;
  	default:
  		return false;
  	}
  
  
  }
  
  static bool rt298_readable_register(struct device *dev, unsigned int reg)
  {
  	switch (reg) {
  	case 0 ... 0xff:
  	case RT298_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID):
  	case RT298_GET_HP_SENSE:
  	case RT298_GET_MIC1_SENSE:
  	case RT298_SET_AUDIO_POWER:
  	case RT298_SET_HPO_POWER:
  	case RT298_SET_SPK_POWER:
  	case RT298_SET_DMIC1_POWER:
  	case RT298_SPK_MUX:
  	case RT298_HPO_MUX:
  	case RT298_ADC0_MUX:
  	case RT298_ADC1_MUX:
  	case RT298_SET_MIC1:
  	case RT298_SET_PIN_HPO:
  	case RT298_SET_PIN_SPK:
  	case RT298_SET_PIN_DMIC1:
  	case RT298_SPK_EAPD:
  	case RT298_SET_AMP_GAIN_HPO:
  	case RT298_SET_DMIC2_DEFAULT:
  	case RT298_DACL_GAIN:
  	case RT298_DACR_GAIN:
  	case RT298_ADCL_GAIN:
  	case RT298_ADCR_GAIN:
  	case RT298_MIC_GAIN:
  	case RT298_SPOL_GAIN:
  	case RT298_SPOR_GAIN:
  	case RT298_HPOL_GAIN:
  	case RT298_HPOR_GAIN:
  	case RT298_F_DAC_SWITCH:
  	case RT298_F_RECMIX_SWITCH:
  	case RT298_REC_MIC_SWITCH:
  	case RT298_REC_I2S_SWITCH:
  	case RT298_REC_LINE_SWITCH:
  	case RT298_REC_BEEP_SWITCH:
  	case RT298_DAC_FORMAT:
  	case RT298_ADC_FORMAT:
  	case RT298_COEF_INDEX:
  	case RT298_PROC_COEF:
  	case RT298_SET_AMP_GAIN_ADC_IN1:
  	case RT298_SET_AMP_GAIN_ADC_IN2:
  	case RT298_SET_POWER(RT298_DAC_OUT1):
  	case RT298_SET_POWER(RT298_DAC_OUT2):
  	case RT298_SET_POWER(RT298_ADC_IN1):
  	case RT298_SET_POWER(RT298_ADC_IN2):
  	case RT298_SET_POWER(RT298_DMIC2):
  	case RT298_SET_POWER(RT298_MIC1):
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_MIC1, 0):
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_SPK_OUT, 0):
  	case VERB_CMD(AC_VERB_GET_EAPD_BTLENABLE, RT298_HP_OUT, 0):
  		return true;
  	default:
  		return false;
  	}
  }
  
  #ifdef CONFIG_PM
  static void rt298_index_sync(struct snd_soc_component *component)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  	int i;
  
  	for (i = 0; i < INDEX_CACHE_SIZE; i++) {
  		snd_soc_component_write(component, rt298->index_cache[i].reg,
  				  rt298->index_cache[i].def);
  	}
  }
  #endif
  
  static int rt298_support_power_controls[] = {
  	RT298_DAC_OUT1,
  	RT298_DAC_OUT2,
  	RT298_ADC_IN1,
  	RT298_ADC_IN2,
  	RT298_MIC1,
  	RT298_DMIC1,
  	RT298_DMIC2,
  	RT298_SPK_OUT,
  	RT298_HP_OUT,
  };
  #define RT298_POWER_REG_LEN ARRAY_SIZE(rt298_support_power_controls)
  
  static int rt298_jack_detect(struct rt298_priv *rt298, bool *hp, bool *mic)
  {
  	struct snd_soc_dapm_context *dapm;
  	unsigned int val, buf;
  
  	*hp = false;
  	*mic = false;
  
  	if (!rt298->component)
  		return -EINVAL;
  
  	dapm = snd_soc_component_get_dapm(rt298->component);
  
  	if (rt298->pdata.cbj_en) {
  		regmap_read(rt298->regmap, RT298_GET_HP_SENSE, &buf);
  		*hp = buf & 0x80000000;
  		if (*hp == rt298->is_hp_in)
  			return -1;
  		rt298->is_hp_in = *hp;
  		if (*hp) {
  			/* power on HV,VERF */
  			regmap_update_bits(rt298->regmap,
  				RT298_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_update_bits(rt298->regmap,
  				RT298_POWER_CTRL1, 0x1001, 0);
  			regmap_update_bits(rt298->regmap,
  				RT298_POWER_CTRL2, 0x4, 0x4);
  
  			regmap_write(rt298->regmap, RT298_SET_MIC1, 0x24);
  			msleep(50);
  
  			regmap_update_bits(rt298->regmap,
  				RT298_CBJ_CTRL1, 0xfcc0, 0xd400);
  			msleep(300);
  			regmap_read(rt298->regmap, RT298_CBJ_CTRL2, &val);
  
  			if (0x0070 == (val & 0x0070)) {
  				*mic = true;
  			} else {
  				regmap_update_bits(rt298->regmap,
  					RT298_CBJ_CTRL1, 0xfcc0, 0xe400);
  				msleep(300);
  				regmap_read(rt298->regmap,
  					RT298_CBJ_CTRL2, &val);
  				if (0x0070 == (val & 0x0070))
  					*mic = true;
  				else
  					*mic = false;
  			}
  			regmap_update_bits(rt298->regmap,
  				RT298_DC_GAIN, 0x200, 0x0);
  
  		} else {
  			*mic = false;
  			regmap_write(rt298->regmap, RT298_SET_MIC1, 0x20);
  			regmap_update_bits(rt298->regmap,
  				RT298_CBJ_CTRL1, 0x0400, 0x0000);
  		}
  	} else {
  		regmap_read(rt298->regmap, RT298_GET_HP_SENSE, &buf);
  		*hp = buf & 0x80000000;
  		regmap_read(rt298->regmap, RT298_GET_MIC1_SENSE, &buf);
  		*mic = buf & 0x80000000;
  	}
  	if (!*mic) {
  		snd_soc_dapm_disable_pin(dapm, "HV");
  		snd_soc_dapm_disable_pin(dapm, "VREF");
  	}
  	if (!*hp)
  		snd_soc_dapm_disable_pin(dapm, "LDO1");
  	snd_soc_dapm_sync(dapm);
  
  	pr_debug("*hp = %d *mic = %d\n", *hp, *mic);
  
  	return 0;
  }
  
  static void rt298_jack_detect_work(struct work_struct *work)
  {
  	struct rt298_priv *rt298 =
  		container_of(work, struct rt298_priv, jack_detect_work.work);
  	int status = 0;
  	bool hp = false;
  	bool mic = false;
  
  	if (rt298_jack_detect(rt298, &hp, &mic) < 0)
  		return;
  
  	if (hp)
  		status |= SND_JACK_HEADPHONE;
  
  	if (mic)
  		status |= SND_JACK_MICROPHONE;
  
  	snd_soc_jack_report(rt298->jack, status,
  		SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
  }
  
  int rt298_mic_detect(struct snd_soc_component *component, struct snd_soc_jack *jack)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  	struct snd_soc_dapm_context *dapm;
  	bool hp = false;
  	bool mic = false;
  	int status = 0;
  
  	/* If jack in NULL, disable HS jack */
  	if (!jack) {
  		regmap_update_bits(rt298->regmap, RT298_IRQ_CTRL, 0x2, 0x0);
  		dapm = snd_soc_component_get_dapm(component);
  		snd_soc_dapm_disable_pin(dapm, "LDO1");
  		snd_soc_dapm_sync(dapm);
  		return 0;
  	}
  
  	rt298->jack = jack;
  	regmap_update_bits(rt298->regmap, RT298_IRQ_CTRL, 0x2, 0x2);
  
  	rt298_jack_detect(rt298, &hp, &mic);
  	if (hp)
  		status |= SND_JACK_HEADPHONE;
  
  	if (mic)
  		status |= SND_JACK_MICROPHONE;
  
  	snd_soc_jack_report(rt298->jack, status,
  		SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
  
  	return 0;
  }
  EXPORT_SYMBOL_GPL(rt298_mic_detect);
  
  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 rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	if (rt298->clk_id == RT298_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 rt298_snd_controls[] = {
  	SOC_DOUBLE_R_TLV("DAC0 Playback Volume", RT298_DACL_GAIN,
  			    RT298_DACR_GAIN, 0, 0x7f, 0, out_vol_tlv),
  	SOC_DOUBLE_R_TLV("ADC0 Capture Volume", RT298_ADCL_GAIN,
  			    RT298_ADCR_GAIN, 0, 0x7f, 0, out_vol_tlv),
  	SOC_SINGLE_TLV("AMIC Volume", RT298_MIC_GAIN,
  			    0, 0x3, 0, mic_vol_tlv),
  	SOC_DOUBLE_R("Speaker Playback Switch", RT298_SPOL_GAIN,
  			    RT298_SPOR_GAIN, RT298_MUTE_SFT, 1, 1),
  };
  
  /* Digital Mixer */
  static const struct snd_kcontrol_new rt298_front_mix[] = {
  	SOC_DAPM_SINGLE("DAC Switch",  RT298_F_DAC_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  	SOC_DAPM_SINGLE("RECMIX Switch", RT298_F_RECMIX_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  };
  
  /* Analog Input Mixer */
  static const struct snd_kcontrol_new rt298_rec_mix[] = {
  	SOC_DAPM_SINGLE("Mic1 Switch", RT298_REC_MIC_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  	SOC_DAPM_SINGLE("I2S Switch", RT298_REC_I2S_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  	SOC_DAPM_SINGLE("Line1 Switch", RT298_REC_LINE_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  	SOC_DAPM_SINGLE("Beep Switch", RT298_REC_BEEP_SWITCH,
  			RT298_MUTE_SFT, 1, 1),
  };
  
  static const struct snd_kcontrol_new spo_enable_control =
  	SOC_DAPM_SINGLE("Switch", RT298_SET_PIN_SPK,
  			RT298_SET_PIN_SFT, 1, 0);
  
  static const struct snd_kcontrol_new hpol_enable_control =
  	SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT298_HPOL_GAIN,
  			RT298_MUTE_SFT, 1, 1);
  
  static const struct snd_kcontrol_new hpor_enable_control =
  	SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT298_HPOR_GAIN,
  			RT298_MUTE_SFT, 1, 1);
  
  /* ADC0 source */
  static const char * const rt298_adc_src[] = {
  	"Mic", "RECMIX", "Dmic"
  };
  
  static const int rt298_adc_values[] = {
  	0, 4, 5,
  };
  
  static SOC_VALUE_ENUM_SINGLE_DECL(
  	rt298_adc0_enum, RT298_ADC0_MUX, RT298_ADC_SEL_SFT,
  	RT298_ADC_SEL_MASK, rt298_adc_src, rt298_adc_values);
  
  static const struct snd_kcontrol_new rt298_adc0_mux =
  	SOC_DAPM_ENUM("ADC 0 source", rt298_adc0_enum);
  
  static SOC_VALUE_ENUM_SINGLE_DECL(
  	rt298_adc1_enum, RT298_ADC1_MUX, RT298_ADC_SEL_SFT,
  	RT298_ADC_SEL_MASK, rt298_adc_src, rt298_adc_values);
  
  static const struct snd_kcontrol_new rt298_adc1_mux =
  	SOC_DAPM_ENUM("ADC 1 source", rt298_adc1_enum);
  
  static const char * const rt298_dac_src[] = {
  	"Front", "Surround"
  };
  /* HP-OUT source */
  static SOC_ENUM_SINGLE_DECL(rt298_hpo_enum, RT298_HPO_MUX,
  				0, rt298_dac_src);
  
  static const struct snd_kcontrol_new rt298_hpo_mux =
  SOC_DAPM_ENUM("HPO source", rt298_hpo_enum);
  
  /* SPK-OUT source */
  static SOC_ENUM_SINGLE_DECL(rt298_spo_enum, RT298_SPK_MUX,
  				0, rt298_dac_src);
  
  static const struct snd_kcontrol_new rt298_spo_mux =
  SOC_DAPM_ENUM("SPO source", rt298_spo_enum);
  
  static int rt298_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,
  			RT298_SPK_EAPD, RT298_SET_EAPD_HIGH);
  		break;
  	case SND_SOC_DAPM_PRE_PMD:
  		snd_soc_component_write(component,
  			RT298_SPK_EAPD, RT298_SET_EAPD_LOW);
  		break;
  
  	default:
  		return 0;
  	}
  
  	return 0;
  }
  
  static int rt298_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, RT298_SET_PIN_DMIC1, 0x20);
  		break;
  	case SND_SOC_DAPM_PRE_PMD:
  		snd_soc_component_write(component, RT298_SET_PIN_DMIC1, 0);
  		break;
  	default:
  		return 0;
  	}
  
  	return 0;
  }
  
  static int rt298_adc_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);
  	unsigned int nid;
  
  	nid = (w->reg >> 20) & 0xff;
  
  	switch (event) {
  	case SND_SOC_DAPM_POST_PMU:
  		snd_soc_component_update_bits(component,
  			VERB_CMD(AC_VERB_SET_AMP_GAIN_MUTE, nid, 0),
  			0x7080, 0x7000);
  		 /* If MCLK doesn't exist, reset AD filter */
  		if (!(snd_soc_component_read32(component, RT298_VAD_CTRL) & 0x200)) {
  			pr_info("NO MCLK\n");
  			switch (nid) {
  			case RT298_ADC_IN1:
  				snd_soc_component_update_bits(component,
  					RT298_D_FILTER_CTRL, 0x2, 0x2);
  				mdelay(10);
  				snd_soc_component_update_bits(component,
  					RT298_D_FILTER_CTRL, 0x2, 0x0);
  				break;
  			case RT298_ADC_IN2:
  				snd_soc_component_update_bits(component,
  					RT298_D_FILTER_CTRL, 0x4, 0x4);
  				mdelay(10);
  				snd_soc_component_update_bits(component,
  					RT298_D_FILTER_CTRL, 0x4, 0x0);
  				break;
  			}
  		}
  		break;
  	case SND_SOC_DAPM_PRE_PMD:
  		snd_soc_component_update_bits(component,
  			VERB_CMD(AC_VERB_SET_AMP_GAIN_MUTE, nid, 0),
  			0x7080, 0x7080);
  		break;
  	default:
  		return 0;
  	}
  
  	return 0;
  }
  
  static int rt298_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,
  			RT298_A_BIAS_CTRL3, 0xc000, 0x8000);
  		snd_soc_component_update_bits(component,
  			RT298_A_BIAS_CTRL2, 0xc000, 0x8000);
  		break;
  	case SND_SOC_DAPM_POST_PMD:
  		snd_soc_component_update_bits(component,
  			RT298_A_BIAS_CTRL3, 0xc000, 0x0000);
  		snd_soc_component_update_bits(component,
  			RT298_A_BIAS_CTRL2, 0xc000, 0x0000);
  		break;
  	default:
  		return 0;
  	}
  
  	return 0;
  }
  
  static const struct snd_soc_dapm_widget rt298_dapm_widgets[] = {
  
  	SND_SOC_DAPM_SUPPLY_S("HV", 1, RT298_POWER_CTRL1,
  		12, 1, NULL, 0),
  	SND_SOC_DAPM_SUPPLY("VREF", RT298_POWER_CTRL1,
  		0, 1, NULL, 0),
  	SND_SOC_DAPM_SUPPLY_S("BG_MBIAS", 1, RT298_POWER_CTRL2,
  		1, 0, NULL, 0),
  	SND_SOC_DAPM_SUPPLY_S("LDO1", 1, RT298_POWER_CTRL2,
  		2, 0, NULL, 0),
  	SND_SOC_DAPM_SUPPLY_S("LDO2", 1, RT298_POWER_CTRL2,
  		3, 0, NULL, 0),
  	SND_SOC_DAPM_SUPPLY_S("VREF1", 1, RT298_POWER_CTRL2,
  		4, 1, NULL, 0),
  	SND_SOC_DAPM_SUPPLY_S("LV", 2, RT298_POWER_CTRL1,
  		13, 1, NULL, 0),
  
  
  	SND_SOC_DAPM_SUPPLY("MCLK MODE", RT298_PLL_CTRL1,
  		5, 0, NULL, 0),
  	SND_SOC_DAPM_SUPPLY("MIC1 Input Buffer", SND_SOC_NOPM,
  		0, 0, rt298_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", RT298_SET_POWER(RT298_DMIC1), 0, 1,
  		NULL, 0, rt298_set_dmic1_event,
  		SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
  	SND_SOC_DAPM_PGA("DMIC2", RT298_SET_POWER(RT298_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,
  		rt298_rec_mix, ARRAY_SIZE(rt298_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_E("ADC 0 Mux", RT298_SET_POWER(RT298_ADC_IN1), 0, 1,
  		&rt298_adc0_mux, rt298_adc_event, SND_SOC_DAPM_PRE_PMD |
  		SND_SOC_DAPM_POST_PMU),
  	SND_SOC_DAPM_MUX_E("ADC 1 Mux", RT298_SET_POWER(RT298_ADC_IN2), 0, 1,
  		&rt298_adc1_mux, rt298_adc_event, SND_SOC_DAPM_PRE_PMD |
  		SND_SOC_DAPM_POST_PMU),
  
  	/* 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, &rt298_spo_mux),
  	SND_SOC_DAPM_MUX("HPO Mux", SND_SOC_NOPM, 0, 0, &rt298_hpo_mux),
  
  	SND_SOC_DAPM_SUPPLY("HP Power", RT298_SET_PIN_HPO,
  		RT298_SET_PIN_SFT, 0, NULL, 0),
  
  	/* Output Mixer */
  	SND_SOC_DAPM_MIXER("Front", RT298_SET_POWER(RT298_DAC_OUT1), 0, 1,
  			rt298_front_mix, ARRAY_SIZE(rt298_front_mix)),
  	SND_SOC_DAPM_PGA("Surround", RT298_SET_POWER(RT298_DAC_OUT2), 0, 1,
  			NULL, 0),
  
  	/* Output Pga */
  	SND_SOC_DAPM_SWITCH_E("SPO", SND_SOC_NOPM, 0, 0,
  		&spo_enable_control, rt298_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 rt298_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"},
  	{"HP Power", NULL, "LV"},
  	{"HP Power", NULL, "VREF1"},
  	{"HP Power", NULL, "BG_MBIAS"},
  
  	{"MIC1", NULL, "LDO1"},
  	{"MIC1", NULL, "LDO2"},
  	{"MIC1", NULL, "HV"},
  	{"MIC1", NULL, "LV"},
  	{"MIC1", NULL, "VREF"},
  	{"MIC1", NULL, "VREF1"},
  	{"MIC1", NULL, "BG_MBIAS"},
  	{"MIC1", NULL, "MIC1 Input Buffer"},
  
  	{"SPO", NULL, "LDO1"},
  	{"SPO", NULL, "LDO2"},
  	{"SPO", NULL, "HV"},
  	{"SPO", NULL, "LV"},
  	{"SPO", NULL, "VREF"},
  	{"SPO", NULL, "VREF1"},
  	{"SPO", NULL, "BG_MBIAS"},
  
  	{"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 rt298_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 rt298_priv *rt298 = 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:
  	case 48000:
  		break;
  	default:
  		dev_err(component->dev, "Unsupported sample rate %d\n",
  					params_rate(params));
  		return -EINVAL;
  	}
  	switch (rt298->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), rt298->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), rt298->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;
  	}
  
  	d_len_code = 0;
  	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,
  		RT298_I2S_CTRL1, 0x0018, d_len_code << 3);
  	dev_dbg(component->dev, "format val = 0x%x\n", val);
  
  	snd_soc_component_update_bits(component, RT298_DAC_FORMAT, 0x407f, val);
  	snd_soc_component_update_bits(component, RT298_ADC_FORMAT, 0x407f, val);
  
  	return 0;
  }
  
  static int rt298_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_CBM_CFM:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL1, 0x800, 0x800);
  		break;
  	case SND_SOC_DAIFMT_CBS_CFS:
  		snd_soc_component_update_bits(component,
  			RT298_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,
  			RT298_I2S_CTRL1, 0x300, 0x0);
  		break;
  	case SND_SOC_DAIFMT_LEFT_J:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL1, 0x300, 0x1 << 8);
  		break;
  	case SND_SOC_DAIFMT_DSP_A:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL1, 0x300, 0x2 << 8);
  		break;
  	case SND_SOC_DAIFMT_DSP_B:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL1, 0x300, 0x3 << 8);
  		break;
  	default:
  		return -EINVAL;
  	}
  	/* bit 15 Stream Type 0:PCM 1:Non-PCM */
  	snd_soc_component_update_bits(component, RT298_DAC_FORMAT, 0x8000, 0);
  	snd_soc_component_update_bits(component, RT298_ADC_FORMAT, 0x8000, 0);
  
  	return 0;
  }
  
  static int rt298_set_dai_sysclk(struct snd_soc_dai *dai,
  				int clk_id, unsigned int freq, int dir)
  {
  	struct snd_soc_component *component = dai->component;
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	dev_dbg(component->dev, "%s freq=%d\n", __func__, freq);
  
  	if (RT298_SCLK_S_MCLK == clk_id) {
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x0100, 0x0);
  		snd_soc_component_update_bits(component,
  			RT298_PLL_CTRL1, 0x20, 0x20);
  	} else {
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x0100, 0x0100);
  		snd_soc_component_update_bits(component,
  			RT298_PLL_CTRL1, 0x20, 0x0);
  	}
  
  	switch (freq) {
  	case 19200000:
  		if (RT298_SCLK_S_MCLK == clk_id) {
  			dev_err(component->dev, "Should not use MCLK\n");
  			return -EINVAL;
  		}
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x40, 0x40);
  		break;
  	case 24000000:
  		if (RT298_SCLK_S_MCLK == clk_id) {
  			dev_err(component->dev, "Should not use MCLK\n");
  			return -EINVAL;
  		}
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x40, 0x0);
  		break;
  	case 12288000:
  	case 11289600:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x8, 0x0);
  		snd_soc_component_update_bits(component,
  			RT298_CLK_DIV, 0xfc1e, 0x0004);
  		break;
  	case 24576000:
  	case 22579200:
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL2, 0x8, 0x8);
  		snd_soc_component_update_bits(component,
  			RT298_CLK_DIV, 0xfc1e, 0x5406);
  		break;
  	default:
  		dev_err(component->dev, "Unsupported system clock\n");
  		return -EINVAL;
  	}
  
  	rt298->sys_clk = freq;
  	rt298->clk_id = clk_id;
  
  	return 0;
  }
  
  static int rt298_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,
  			RT298_I2S_CTRL1, 0x1000, 0x1000);
  	else
  		snd_soc_component_update_bits(component,
  			RT298_I2S_CTRL1, 0x1000, 0x0);
  
  
  	return 0;
  }
  
  static int rt298_set_bias_level(struct snd_soc_component *component,
  				 enum snd_soc_bias_level level)
  {
  	switch (level) {
  	case SND_SOC_BIAS_PREPARE:
  		if (SND_SOC_BIAS_STANDBY ==
  			snd_soc_component_get_bias_level(component)) {
  			snd_soc_component_write(component,
  				RT298_SET_AUDIO_POWER, AC_PWRST_D0);
  			snd_soc_component_update_bits(component, 0x0d, 0x200, 0x200);
  			snd_soc_component_update_bits(component, 0x52, 0x80, 0x0);
  			mdelay(20);
  			snd_soc_component_update_bits(component, 0x0d, 0x200, 0x0);
  			snd_soc_component_update_bits(component, 0x52, 0x80, 0x80);
  		}
  		break;
  
  	case SND_SOC_BIAS_STANDBY:
  		snd_soc_component_write(component,
  			RT298_SET_AUDIO_POWER, AC_PWRST_D3);
  		break;
  
  	default:
  		break;
  	}
  
  	return 0;
  }
  
  static irqreturn_t rt298_irq(int irq, void *data)
  {
  	struct rt298_priv *rt298 = data;
  	bool hp = false;
  	bool mic = false;
  	int ret, status = 0;
  
  	ret = rt298_jack_detect(rt298, &hp, &mic);
  
  	/* Clear IRQ */
  	regmap_update_bits(rt298->regmap, RT298_IRQ_CTRL, 0x1, 0x1);
  
  	if (ret == 0) {
  		if (hp)
  			status |= SND_JACK_HEADPHONE;
  
  		if (mic)
  			status |= SND_JACK_MICROPHONE;
  
  		snd_soc_jack_report(rt298->jack, status,
  			SND_JACK_MICROPHONE | SND_JACK_HEADPHONE);
  
  		pm_wakeup_event(&rt298->i2c->dev, 300);
  	}
  
  	return IRQ_HANDLED;
  }
  
  static int rt298_probe(struct snd_soc_component *component)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	rt298->component = component;
  
  	if (rt298->i2c->irq) {
  		regmap_update_bits(rt298->regmap,
  					RT298_IRQ_CTRL, 0x2, 0x2);
  
  		INIT_DELAYED_WORK(&rt298->jack_detect_work,
  					rt298_jack_detect_work);
  		schedule_delayed_work(&rt298->jack_detect_work,
  					msecs_to_jiffies(1250));
  	}
  
  	return 0;
  }
  
  static void rt298_remove(struct snd_soc_component *component)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	cancel_delayed_work_sync(&rt298->jack_detect_work);
  }
  
  #ifdef CONFIG_PM
  static int rt298_suspend(struct snd_soc_component *component)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	rt298->is_hp_in = -1;
  	regcache_cache_only(rt298->regmap, true);
  	regcache_mark_dirty(rt298->regmap);
  
  	return 0;
  }
  
  static int rt298_resume(struct snd_soc_component *component)
  {
  	struct rt298_priv *rt298 = snd_soc_component_get_drvdata(component);
  
  	regcache_cache_only(rt298->regmap, false);
  	rt298_index_sync(component);
  	regcache_sync(rt298->regmap);
  
  	return 0;
  }
  #else
  #define rt298_suspend NULL
  #define rt298_resume NULL
  #endif
  
  #define RT298_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
  #define RT298_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 rt298_aif_dai_ops = {
  	.hw_params = rt298_hw_params,
  	.set_fmt = rt298_set_dai_fmt,
  	.set_sysclk = rt298_set_dai_sysclk,
  	.set_bclk_ratio = rt298_set_bclk_ratio,
  };
  
  static struct snd_soc_dai_driver rt298_dai[] = {
  	{
  		.name = "rt298-aif1",
  		.id = RT298_AIF1,
  		.playback = {
  			.stream_name = "AIF1 Playback",
  			.channels_min = 1,
  			.channels_max = 2,
  			.rates = RT298_STEREO_RATES,
  			.formats = RT298_FORMATS,
  		},
  		.capture = {
  			.stream_name = "AIF1 Capture",
  			.channels_min = 1,
  			.channels_max = 2,
  			.rates = RT298_STEREO_RATES,
  			.formats = RT298_FORMATS,
  		},
  		.ops = &rt298_aif_dai_ops,
  		.symmetric_rates = 1,
  	},
  	{
  		.name = "rt298-aif2",
  		.id = RT298_AIF2,
  		.playback = {
  			.stream_name = "AIF2 Playback",
  			.channels_min = 1,
  			.channels_max = 2,
  			.rates = RT298_STEREO_RATES,
  			.formats = RT298_FORMATS,
  		},
  		.capture = {
  			.stream_name = "AIF2 Capture",
  			.channels_min = 1,
  			.channels_max = 2,
  			.rates = RT298_STEREO_RATES,
  			.formats = RT298_FORMATS,
  		},
  		.ops = &rt298_aif_dai_ops,
  		.symmetric_rates = 1,
  	},
  
  };
  
  static const struct snd_soc_component_driver soc_component_dev_rt298 = {
  	.probe			= rt298_probe,
  	.remove			= rt298_remove,
  	.suspend		= rt298_suspend,
  	.resume			= rt298_resume,
  	.set_bias_level		= rt298_set_bias_level,
  	.controls		= rt298_snd_controls,
  	.num_controls		= ARRAY_SIZE(rt298_snd_controls),
  	.dapm_widgets		= rt298_dapm_widgets,
  	.num_dapm_widgets	= ARRAY_SIZE(rt298_dapm_widgets),
  	.dapm_routes		= rt298_dapm_routes,
  	.num_dapm_routes	= ARRAY_SIZE(rt298_dapm_routes),
  	.use_pmdown_time	= 1,
  	.endianness		= 1,
  	.non_legacy_dai_naming	= 1,
  };
  
  static const struct regmap_config rt298_regmap = {
  	.reg_bits = 32,
  	.val_bits = 32,
  	.max_register = 0x02370100,
  	.volatile_reg = rt298_volatile_register,
  	.readable_reg = rt298_readable_register,
  	.reg_write = rl6347a_hw_write,
  	.reg_read = rl6347a_hw_read,
  	.cache_type = REGCACHE_RBTREE,
  	.reg_defaults = rt298_reg,
  	.num_reg_defaults = ARRAY_SIZE(rt298_reg),
  };
  
  static const struct i2c_device_id rt298_i2c_id[] = {
  	{"rt298", 0},
  	{}
  };
  MODULE_DEVICE_TABLE(i2c, rt298_i2c_id);
  
  static const struct acpi_device_id rt298_acpi_match[] = {
  	{ "INT343A", 0 },
  	{},
  };
  MODULE_DEVICE_TABLE(acpi, rt298_acpi_match);
  
  static const struct dmi_system_id force_combo_jack_table[] = {
  	{
  		.ident = "Intel Broxton P",
  		.matches = {
  			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp"),
  			DMI_MATCH(DMI_PRODUCT_NAME, "Broxton P")
  		}
  	},
  	{
  		.ident = "Intel Gemini Lake",
  		.matches = {
  			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp"),
  			DMI_MATCH(DMI_PRODUCT_NAME, "Geminilake")
  		}
  	},
  	{ }
  };
  
  static int rt298_i2c_probe(struct i2c_client *i2c,
  			   const struct i2c_device_id *id)
  {
  	struct rt298_platform_data *pdata = dev_get_platdata(&i2c->dev);
  	struct rt298_priv *rt298;
  	struct device *dev = &i2c->dev;
  	const struct acpi_device_id *acpiid;
  	int i, ret;
  
  	rt298 = devm_kzalloc(&i2c->dev,	sizeof(*rt298),
  				GFP_KERNEL);
  	if (NULL == rt298)
  		return -ENOMEM;
  
  	rt298->regmap = devm_regmap_init(&i2c->dev, NULL, i2c, &rt298_regmap);
  	if (IS_ERR(rt298->regmap)) {
  		ret = PTR_ERR(rt298->regmap);
  		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
  			ret);
  		return ret;
  	}
  
  	regmap_read(rt298->regmap,
  		RT298_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &ret);
  	if (ret != RT298_VENDOR_ID) {
  		dev_err(&i2c->dev,
  			"Device with ID register %#x is not rt298\n", ret);
  		return -ENODEV;
  	}
  
  	rt298->index_cache = devm_kmemdup(&i2c->dev, rt298_index_def,
  					  sizeof(rt298_index_def), GFP_KERNEL);
  	if (!rt298->index_cache)
  		return -ENOMEM;
  
  	rt298->index_cache_size = INDEX_CACHE_SIZE;
  	rt298->i2c = i2c;
  	i2c_set_clientdata(i2c, rt298);
  
  	/* restore codec default */
  	for (i = 0; i < INDEX_CACHE_SIZE; i++)
  		regmap_write(rt298->regmap, rt298->index_cache[i].reg,
  				rt298->index_cache[i].def);
  	for (i = 0; i < ARRAY_SIZE(rt298_reg); i++)
  		regmap_write(rt298->regmap, rt298_reg[i].reg,
  				rt298_reg[i].def);
  
  	if (pdata)
  		rt298->pdata = *pdata;
  
  	/* enable jack combo mode on supported devices */
  	acpiid = acpi_match_device(dev->driver->acpi_match_table, dev);
  	if (acpiid && acpiid->driver_data) {
  		rt298->pdata = *(struct rt298_platform_data *)
  				acpiid->driver_data;
  	}
  
  	if (dmi_check_system(force_combo_jack_table)) {
  		rt298->pdata.cbj_en = true;
  		rt298->pdata.gpio2_en = false;
  	}
  
  	/* VREF Charging */
  	regmap_update_bits(rt298->regmap, 0x04, 0x80, 0x80);
  	regmap_update_bits(rt298->regmap, 0x1b, 0x860, 0x860);
  	/* Vref2 */
  	regmap_update_bits(rt298->regmap, 0x08, 0x20, 0x20);
  
  	regmap_write(rt298->regmap, RT298_SET_AUDIO_POWER, AC_PWRST_D3);
  
  	for (i = 0; i < RT298_POWER_REG_LEN; i++)
  		regmap_write(rt298->regmap,
  			RT298_SET_POWER(rt298_support_power_controls[i]),
  			AC_PWRST_D1);
  
  	if (!rt298->pdata.cbj_en) {
  		regmap_write(rt298->regmap, RT298_CBJ_CTRL2, 0x0000);
  		regmap_write(rt298->regmap, RT298_MIC1_DET_CTRL, 0x0816);
  		regmap_update_bits(rt298->regmap,
  					RT298_CBJ_CTRL1, 0xf000, 0xb000);
  	} else {
  		regmap_update_bits(rt298->regmap,
  					RT298_CBJ_CTRL1, 0xf000, 0x5000);
  	}
  
  	mdelay(10);
  
  	if (!rt298->pdata.gpio2_en)
  		regmap_write(rt298->regmap, RT298_SET_DMIC2_DEFAULT, 0x40);
  	else
  		regmap_write(rt298->regmap, RT298_SET_DMIC2_DEFAULT, 0);
  
  	mdelay(10);
  
  	regmap_write(rt298->regmap, RT298_MISC_CTRL1, 0x0000);
  	regmap_update_bits(rt298->regmap,
  				RT298_WIND_FILTER_CTRL, 0x0082, 0x0082);
  
  	regmap_write(rt298->regmap, RT298_UNSOLICITED_INLINE_CMD, 0x81);
  	regmap_write(rt298->regmap, RT298_UNSOLICITED_HP_OUT, 0x82);
  	regmap_write(rt298->regmap, RT298_UNSOLICITED_MIC1, 0x84);
  	regmap_update_bits(rt298->regmap, RT298_IRQ_FLAG_CTRL, 0x2, 0x2);
  
  	rt298->is_hp_in = -1;
  
  	if (rt298->i2c->irq) {
  		ret = request_threaded_irq(rt298->i2c->irq, NULL, rt298_irq,
  			IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt298", rt298);
  		if (ret != 0) {
  			dev_err(&i2c->dev,
  				"Failed to reguest IRQ: %d\n", ret);
  			return ret;
  		}
  	}
  
  	ret = devm_snd_soc_register_component(&i2c->dev,
  				     &soc_component_dev_rt298,
  				     rt298_dai, ARRAY_SIZE(rt298_dai));
  
  	return ret;
  }
  
  static int rt298_i2c_remove(struct i2c_client *i2c)
  {
  	struct rt298_priv *rt298 = i2c_get_clientdata(i2c);
  
  	if (i2c->irq)
  		free_irq(i2c->irq, rt298);
  
  	return 0;
  }
  
  
  static struct i2c_driver rt298_i2c_driver = {
  	.driver = {
  		   .name = "rt298",
  		   .acpi_match_table = ACPI_PTR(rt298_acpi_match),
  		   },
  	.probe = rt298_i2c_probe,
  	.remove = rt298_i2c_remove,
  	.id_table = rt298_i2c_id,
  };
  
  module_i2c_driver(rt298_i2c_driver);
  
  MODULE_DESCRIPTION("ASoC RT298 driver");
  MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>");
  MODULE_LICENSE("GPL");
  