sound/soc/codecs/inno_rk3036.c - arm/linux - Git at Google

 /*
  * Driver of Inno codec for rk3036 by Rockchip Inc.
  *
  * Author: Rockchip Inc.
  * Author: Zheng ShunQian<zhengsq@rock-chips.com>
  */

 #include <sound/soc.h>
 #include <sound/tlv.h>
 #include <sound/soc-dapm.h>
 #include <sound/soc-dai.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>

 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/regmap.h>
 #include <linux/device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/io.h>

 #include "inno_rk3036.h"

 struct rk3036_codec_priv {
 	void __iomem *base;
 	struct clk *pclk;
 	struct regmap *regmap;
 	struct device *dev;
 };

 static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0);

 static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 2;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = 1;

 	return 0;
 }

 static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol,
 				    struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	int val, ret, regval;

 	ret = snd_soc_component_read(component, INNO_R09, &regval);
 	if (ret)
 		return ret;
 	val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) &
 	       INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
 	ucontrol->value.integer.value[0] = val;

 	val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) &
 	       INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
 	ucontrol->value.integer.value[1] = val;

 	return 0;
 }

 static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol,
 				    struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	int val, ret, regmsk;

 	val = (ucontrol->value.integer.value[0] ?
 	       INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
 	      INNO_R09_HPL_ANITPOP_SHIFT;
 	val |= (ucontrol->value.integer.value[1] ?
 		INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
 	       INNO_R09_HPR_ANITPOP_SHIFT;

 	regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT |
 		 INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT;

 	ret = snd_soc_component_update_bits(component, INNO_R09,
 					    regmsk, val);
 	if (ret < 0)
 		return ret;

 	return 0;
 }

 #define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 	.info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \
 	.put = rk3036_codec_antipop_put, }

 static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = {
 	SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08,
 		INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB,
 		INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv),
 	SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT,
 		INNO_R06_VOUTR_CZ_SHIFT, 1, 0),
 	SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT,
 		INNO_R09_HPR_MUTE_SHIFT, 1, 0),
 	SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"),
 };

 static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = {
 	SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09,
 			INNO_R09_DACL_SWITCH_SHIFT, 1, 0),
 };

 static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = {
 	SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09,
 			INNO_R09_DACR_SWITCH_SHIFT, 1, 0),
 };

 static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = {
 	SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05,
 			INNO_R05_HPL_WORK_SHIFT, 1, 0),
 };

 static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = {
 	SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05,
 			INNO_R05_HPR_WORK_SHIFT, 1, 0),
 };

 static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = {
 	SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06,
 			      INNO_R06_DAC_EN_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04,
 			      INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04,
 			      INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06,
 			      INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06,
 			      INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04,
 			      INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04,
 			      INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0),

 	SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04,
 			 INNO_R04_DACL_SW_SHIFT, 0),
 	SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04,
 			 INNO_R04_DACR_SW_SHIFT, 0),

 	SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
 		rk3036_codec_hpl_mixer_controls,
 		ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)),
 	SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
 		rk3036_codec_hpr_mixer_controls,
 		ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)),

 	SND_SOC_DAPM_PGA("HP Left Out", INNO_R05,
 			 INNO_R05_HPL_EN_SHIFT, 0, NULL, 0),
 	SND_SOC_DAPM_PGA("HP Right Out", INNO_R05,
 			 INNO_R05_HPR_EN_SHIFT, 0, NULL, 0),

 	SND_SOC_DAPM_MIXER("HP Left Switch",  SND_SOC_NOPM, 0, 0,
 			   rk3036_codec_hpl_switch_controls,
 			   ARRAY_SIZE(rk3036_codec_hpl_switch_controls)),
 	SND_SOC_DAPM_MIXER("HP Right Switch",  SND_SOC_NOPM, 0, 0,
 			   rk3036_codec_hpr_switch_controls,
 			   ARRAY_SIZE(rk3036_codec_hpr_switch_controls)),

 	SND_SOC_DAPM_OUTPUT("HPL"),
 	SND_SOC_DAPM_OUTPUT("HPR"),
 };

 static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = {
 	{"DACL VREF", NULL, "DAC PWR"},
 	{"DACR VREF", NULL, "DAC PWR"},
 	{"DACL HiLo VREF", NULL, "DAC PWR"},
 	{"DACR HiLo VREF", NULL, "DAC PWR"},
 	{"DACL CLK", NULL, "DAC PWR"},
 	{"DACR CLK", NULL, "DAC PWR"},

 	{"DACL", NULL, "DACL VREF"},
 	{"DACL", NULL, "DACL HiLo VREF"},
 	{"DACL", NULL, "DACL CLK"},
 	{"DACR", NULL, "DACR VREF"},
 	{"DACR", NULL, "DACR HiLo VREF"},
 	{"DACR", NULL, "DACR CLK"},

 	{"Left Headphone Mixer", "DAC Left Out Switch", "DACL"},
 	{"Right Headphone Mixer", "DAC Right Out Switch", "DACR"},
 	{"HP Left Out", NULL, "Left Headphone Mixer"},
 	{"HP Right Out", NULL, "Right Headphone Mixer"},

 	{"HP Left Switch", "HP Left Out Switch", "HP Left Out"},
 	{"HP Right Switch", "HP Right Out Switch", "HP Right Out"},

 	{"HPL", NULL, "HP Left Switch"},
 	{"HPR", NULL, "HP Right Switch"},
 };

 static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	unsigned int reg01_val = 0,  reg02_val = 0, reg03_val = 0;

 	dev_dbg(codec->dev, "rk3036_codec dai set fmt : %08x\n", fmt);

 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
 		reg01_val |= INNO_R01_PINDIR_IN_SLAVE |
 			     INNO_R01_I2SMODE_SLAVE;
 		break;
 	case SND_SOC_DAIFMT_CBM_CFM:
 		reg01_val |= INNO_R01_PINDIR_OUT_MASTER |
 			     INNO_R01_I2SMODE_MASTER;
 		break;
 	default:
 		dev_err(codec->dev, "invalid fmt\n");
 		return -EINVAL;
 	}

 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_DSP_A:
 		reg02_val |= INNO_R02_DACM_PCM;
 		break;
 	case SND_SOC_DAIFMT_I2S:
 		reg02_val |= INNO_R02_DACM_I2S;
 		break;
 	case SND_SOC_DAIFMT_RIGHT_J:
 		reg02_val |= INNO_R02_DACM_RJM;
 		break;
 	case SND_SOC_DAIFMT_LEFT_J:
 		reg02_val |= INNO_R02_DACM_LJM;
 		break;
 	default:
 		dev_err(codec->dev, "set dai format failed\n");
 		return -EINVAL;
 	}

 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 	case SND_SOC_DAIFMT_NB_NF:
 		reg02_val |= INNO_R02_LRCP_NORMAL;
 		reg03_val |= INNO_R03_BCP_NORMAL;
 		break;
 	case SND_SOC_DAIFMT_IB_IF:
 		reg02_val |= INNO_R02_LRCP_REVERSAL;
 		reg03_val |= INNO_R03_BCP_REVERSAL;
 		break;
 	case SND_SOC_DAIFMT_IB_NF:
 		reg02_val |= INNO_R02_LRCP_REVERSAL;
 		reg03_val |= INNO_R03_BCP_NORMAL;
 		break;
 	case SND_SOC_DAIFMT_NB_IF:
 		reg02_val |= INNO_R02_LRCP_NORMAL;
 		reg03_val |= INNO_R03_BCP_REVERSAL;
 		break;
 	default:
 		dev_err(codec->dev, "set dai format failed\n");
 		return -EINVAL;
 	}

 	snd_soc_update_bits(codec, INNO_R01, INNO_R01_I2SMODE_MSK |
 			    INNO_R01_PINDIR_MSK, reg01_val);
 	snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK |
 			    INNO_R02_DACM_MSK, reg02_val);
 	snd_soc_update_bits(codec, INNO_R03, INNO_R03_BCP_MSK, reg03_val);

 	return 0;
 }

 static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream,
 				      struct snd_pcm_hw_params *hw_params,
 				      struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	unsigned int reg02_val = 0, reg03_val = 0;

 	switch (params_format(hw_params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
 		reg02_val |= INNO_R02_VWL_16BIT;
 		break;
 	case SNDRV_PCM_FORMAT_S20_3LE:
 		reg02_val |= INNO_R02_VWL_20BIT;
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
 		reg02_val |= INNO_R02_VWL_24BIT;
 		break;
 	case SNDRV_PCM_FORMAT_S32_LE:
 		reg02_val |= INNO_R02_VWL_32BIT;
 		break;
 	default:
 		return -EINVAL;
 	}

 	reg02_val |= INNO_R02_LRCP_NORMAL;
 	reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK;

 	snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK |
 			    INNO_R02_VWL_MSK, reg02_val);
 	snd_soc_update_bits(codec, INNO_R03, INNO_R03_DACR_MSK |
 			    INNO_R03_FWL_MSK, reg03_val);
 	return 0;
 }

 #define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000  | \
 			    SNDRV_PCM_RATE_16000 | \
 			    SNDRV_PCM_RATE_32000 | \
 			    SNDRV_PCM_RATE_44100 | \
 			    SNDRV_PCM_RATE_48000 | \
 			    SNDRV_PCM_RATE_96000)

 #define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE  | \
 			   SNDRV_PCM_FMTBIT_S20_3LE | \
 			   SNDRV_PCM_FMTBIT_S24_LE  | \
 			   SNDRV_PCM_FMTBIT_S32_LE)

 static const struct snd_soc_dai_ops rk3036_codec_dai_ops = {
 	.set_fmt	= rk3036_codec_dai_set_fmt,
 	.hw_params	= rk3036_codec_dai_hw_params,
 };

 static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = {
 	{
 		.name = "rk3036-codec-dai",
 		.playback = {
 			.stream_name = "Playback",
 			.channels_min = 1,
 			.channels_max = 2,
 			.rates = RK3036_CODEC_RATES,
 			.formats = RK3036_CODEC_FMTS,
 		},
 		.ops = &rk3036_codec_dai_ops,
 		.symmetric_rates = 1,
 	},
 };

 static void rk3036_codec_reset(struct snd_soc_codec *codec)
 {
 	snd_soc_write(codec, INNO_R00,
 		      INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET);
 	snd_soc_write(codec, INNO_R00,
 		      INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK);
 }

 static int rk3036_codec_probe(struct snd_soc_codec *codec)
 {
 	rk3036_codec_reset(codec);
 	return 0;
 }

 static int rk3036_codec_remove(struct snd_soc_codec *codec)
 {
 	rk3036_codec_reset(codec);
 	return 0;
 }

 static int rk3036_codec_set_bias_level(struct snd_soc_codec *codec,
 				       enum snd_soc_bias_level level)
 {
 	switch (level) {
 	case SND_SOC_BIAS_STANDBY:
 		/* set a big current for capacitor charging. */
 		snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
 		/* start precharge */
 		snd_soc_write(codec, INNO_R06, INNO_R06_DAC_PRECHARGE);

 		break;

 	case SND_SOC_BIAS_OFF:
 		/* set a big current for capacitor discharging. */
 		snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
 		/* start discharge. */
 		snd_soc_write(codec, INNO_R06, INNO_R06_DAC_DISCHARGE);

 		break;
 	default:
 		break;
 	}

 	return 0;
 }

 static const struct snd_soc_codec_driver rk3036_codec_driver = {
 	.probe			= rk3036_codec_probe,
 	.remove			= rk3036_codec_remove,
 	.set_bias_level		= rk3036_codec_set_bias_level,
 	.component_driver = {
 		.controls		= rk3036_codec_dapm_controls,
 		.num_controls		= ARRAY_SIZE(rk3036_codec_dapm_controls),
 		.dapm_routes		= rk3036_codec_dapm_routes,
 		.num_dapm_routes	= ARRAY_SIZE(rk3036_codec_dapm_routes),
 		.dapm_widgets		= rk3036_codec_dapm_widgets,
 		.num_dapm_widgets	= ARRAY_SIZE(rk3036_codec_dapm_widgets),
 	},
 };

 static const struct regmap_config rk3036_codec_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
 	.val_bits = 32,
 };

 #define GRF_SOC_CON0		0x00140
 #define GRF_ACODEC_SEL		(BIT(10) | BIT(16 + 10))

 static int rk3036_codec_platform_probe(struct platform_device *pdev)
 {
 	struct rk3036_codec_priv *priv;
 	struct device_node *of_node = pdev->dev.of_node;
 	struct resource *res;
 	void __iomem *base;
 	struct regmap *grf;
 	int ret;

 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;

 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);

 	priv->base = base;
 	priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
 					     &rk3036_codec_regmap_config);
 	if (IS_ERR(priv->regmap)) {
 		dev_err(&pdev->dev, "init regmap failed\n");
 		return PTR_ERR(priv->regmap);
 	}

 	grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf");
 	if (IS_ERR(grf)) {
 		dev_err(&pdev->dev, "needs 'rockchip,grf' property\n");
 		return PTR_ERR(grf);
 	}
 	ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL);
 	if (ret) {
 		dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret);
 		return ret;
 	}

 	priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk");
 	if (IS_ERR(priv->pclk))
 		return PTR_ERR(priv->pclk);

 	ret = clk_prepare_enable(priv->pclk);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to enable clk\n");
 		return ret;
 	}

 	priv->dev = &pdev->dev;
 	dev_set_drvdata(&pdev->dev, priv);

 	ret = snd_soc_register_codec(&pdev->dev, &rk3036_codec_driver,
 				     rk3036_codec_dai_driver,
 				     ARRAY_SIZE(rk3036_codec_dai_driver));
 	if (ret) {
 		clk_disable_unprepare(priv->pclk);
 		dev_set_drvdata(&pdev->dev, NULL);
 	}

 	return ret;
 }

 static int rk3036_codec_platform_remove(struct platform_device *pdev)
 {
 	struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev);

 	snd_soc_unregister_codec(&pdev->dev);
 	clk_disable_unprepare(priv->pclk);

 	return 0;
 }

 static const struct of_device_id rk3036_codec_of_match[] = {
 	{ .compatible = "rockchip,rk3036-codec", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, rk3036_codec_of_match);

 static struct platform_driver rk3036_codec_platform_driver = {
 	.driver = {
 		.name = "rk3036-codec-platform",
 		.of_match_table = of_match_ptr(rk3036_codec_of_match),
 	},
 	.probe = rk3036_codec_platform_probe,
 	.remove = rk3036_codec_platform_remove,
 };

 module_platform_driver(rk3036_codec_platform_driver);

 MODULE_AUTHOR("Rockchip Inc.");
 MODULE_DESCRIPTION("Rockchip rk3036 codec driver");
 MODULE_LICENSE("GPL");
	/*
	* Driver of Inno codec for rk3036 by Rockchip Inc.
	*
	* Author: Rockchip Inc.
	* Author: Zheng ShunQian<zhengsq@rock-chips.com>
	*/

	#include <sound/soc.h>
	#include <sound/tlv.h>
	#include <sound/soc-dapm.h>
	#include <sound/soc-dai.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>

	#include <linux/platform_device.h>
	#include <linux/of.h>
	#include <linux/clk.h>
	#include <linux/regmap.h>
	#include <linux/device.h>
	#include <linux/mfd/syscon.h>
	#include <linux/module.h>
	#include <linux/io.h>

	#include "inno_rk3036.h"

	struct rk3036_codec_priv {
	void __iomem *base;
	struct clk *pclk;
	struct regmap *regmap;
	struct device *dev;
	};

	static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0);

	static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;

	return 0;
	}

	static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	int val, ret, regval;

	ret = snd_soc_component_read(component, INNO_R09, &regval);
	if (ret)
	return ret;
	val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) &
	INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
	ucontrol->value.integer.value[0] = val;

	val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) &
	INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
	ucontrol->value.integer.value[1] = val;

	return 0;
	}

	static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	int val, ret, regmsk;

	val = (ucontrol->value.integer.value[0] ?
	INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
	INNO_R09_HPL_ANITPOP_SHIFT;
	val \|= (ucontrol->value.integer.value[1] ?
	INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
	INNO_R09_HPR_ANITPOP_SHIFT;

	regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT \|
	INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT;

	ret = snd_soc_component_update_bits(component, INNO_R09,
	regmsk, val);
	if (ret < 0)
	return ret;

	return 0;
	}

	#define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
	.info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \
	.put = rk3036_codec_antipop_put, }

	static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = {
	SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08,
	INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB,
	INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv),
	SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT,
	INNO_R06_VOUTR_CZ_SHIFT, 1, 0),
	SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT,
	INNO_R09_HPR_MUTE_SHIFT, 1, 0),
	SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"),
	};

	static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = {
	SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09,
	INNO_R09_DACL_SWITCH_SHIFT, 1, 0),
	};

	static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = {
	SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09,
	INNO_R09_DACR_SWITCH_SHIFT, 1, 0),
	};

	static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = {
	SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05,
	INNO_R05_HPL_WORK_SHIFT, 1, 0),
	};

	static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = {
	SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05,
	INNO_R05_HPR_WORK_SHIFT, 1, 0),
	};

	static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = {
	SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06,
	INNO_R06_DAC_EN_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04,
	INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04,
	INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06,
	INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06,
	INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04,
	INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04,
	INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0),

	SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04,
	INNO_R04_DACL_SW_SHIFT, 0),
	SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04,
	INNO_R04_DACR_SW_SHIFT, 0),

	SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
	rk3036_codec_hpl_mixer_controls,
	ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)),
	SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
	rk3036_codec_hpr_mixer_controls,
	ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)),

	SND_SOC_DAPM_PGA("HP Left Out", INNO_R05,
	INNO_R05_HPL_EN_SHIFT, 0, NULL, 0),
	SND_SOC_DAPM_PGA("HP Right Out", INNO_R05,
	INNO_R05_HPR_EN_SHIFT, 0, NULL, 0),

	SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0,
	rk3036_codec_hpl_switch_controls,
	ARRAY_SIZE(rk3036_codec_hpl_switch_controls)),
	SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0,
	rk3036_codec_hpr_switch_controls,
	ARRAY_SIZE(rk3036_codec_hpr_switch_controls)),

	SND_SOC_DAPM_OUTPUT("HPL"),
	SND_SOC_DAPM_OUTPUT("HPR"),
	};

	static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = {
	{"DACL VREF", NULL, "DAC PWR"},
	{"DACR VREF", NULL, "DAC PWR"},
	{"DACL HiLo VREF", NULL, "DAC PWR"},
	{"DACR HiLo VREF", NULL, "DAC PWR"},
	{"DACL CLK", NULL, "DAC PWR"},
	{"DACR CLK", NULL, "DAC PWR"},

	{"DACL", NULL, "DACL VREF"},
	{"DACL", NULL, "DACL HiLo VREF"},
	{"DACL", NULL, "DACL CLK"},
	{"DACR", NULL, "DACR VREF"},
	{"DACR", NULL, "DACR HiLo VREF"},
	{"DACR", NULL, "DACR CLK"},

	{"Left Headphone Mixer", "DAC Left Out Switch", "DACL"},
	{"Right Headphone Mixer", "DAC Right Out Switch", "DACR"},
	{"HP Left Out", NULL, "Left Headphone Mixer"},
	{"HP Right Out", NULL, "Right Headphone Mixer"},

	{"HP Left Switch", "HP Left Out Switch", "HP Left Out"},
	{"HP Right Switch", "HP Right Out Switch", "HP Right Out"},

	{"HPL", NULL, "HP Left Switch"},
	{"HPR", NULL, "HP Right Switch"},
	};

	static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
	{
	struct snd_soc_codec *codec = dai->codec;
	unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0;

	dev_dbg(codec->dev, "rk3036_codec dai set fmt : %08x\n", fmt);

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
	reg01_val \|= INNO_R01_PINDIR_IN_SLAVE \|
	INNO_R01_I2SMODE_SLAVE;
	break;
	case SND_SOC_DAIFMT_CBM_CFM:
	reg01_val \|= INNO_R01_PINDIR_OUT_MASTER \|
	INNO_R01_I2SMODE_MASTER;
	break;
	default:
	dev_err(codec->dev, "invalid fmt\n");
	return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
	reg02_val \|= INNO_R02_DACM_PCM;
	break;
	case SND_SOC_DAIFMT_I2S:
	reg02_val \|= INNO_R02_DACM_I2S;
	break;
	case SND_SOC_DAIFMT_RIGHT_J:
	reg02_val \|= INNO_R02_DACM_RJM;
	break;
	case SND_SOC_DAIFMT_LEFT_J:
	reg02_val \|= INNO_R02_DACM_LJM;
	break;
	default:
	dev_err(codec->dev, "set dai format failed\n");
	return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
	reg02_val \|= INNO_R02_LRCP_NORMAL;
	reg03_val \|= INNO_R03_BCP_NORMAL;
	break;
	case SND_SOC_DAIFMT_IB_IF:
	reg02_val \|= INNO_R02_LRCP_REVERSAL;
	reg03_val \|= INNO_R03_BCP_REVERSAL;
	break;
	case SND_SOC_DAIFMT_IB_NF:
	reg02_val \|= INNO_R02_LRCP_REVERSAL;
	reg03_val \|= INNO_R03_BCP_NORMAL;
	break;
	case SND_SOC_DAIFMT_NB_IF:
	reg02_val \|= INNO_R02_LRCP_NORMAL;
	reg03_val \|= INNO_R03_BCP_REVERSAL;
	break;
	default:
	dev_err(codec->dev, "set dai format failed\n");
	return -EINVAL;
	}

	snd_soc_update_bits(codec, INNO_R01, INNO_R01_I2SMODE_MSK \|
	INNO_R01_PINDIR_MSK, reg01_val);
	snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK \|
	INNO_R02_DACM_MSK, reg02_val);
	snd_soc_update_bits(codec, INNO_R03, INNO_R03_BCP_MSK, reg03_val);

	return 0;
	}

	static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *hw_params,
	struct snd_soc_dai *dai)
	{
	struct snd_soc_codec *codec = dai->codec;
	unsigned int reg02_val = 0, reg03_val = 0;

	switch (params_format(hw_params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
	reg02_val \|= INNO_R02_VWL_16BIT;
	break;
	case SNDRV_PCM_FORMAT_S20_3LE:
	reg02_val \|= INNO_R02_VWL_20BIT;
	break;
	case SNDRV_PCM_FORMAT_S24_LE:
	reg02_val \|= INNO_R02_VWL_24BIT;
	break;
	case SNDRV_PCM_FORMAT_S32_LE:
	reg02_val \|= INNO_R02_VWL_32BIT;
	break;
	default:
	return -EINVAL;
	}

	reg02_val \|= INNO_R02_LRCP_NORMAL;
	reg03_val \|= INNO_R03_FWL_32BIT \| INNO_R03_DACR_WORK;

	snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK \|
	INNO_R02_VWL_MSK, reg02_val);
	snd_soc_update_bits(codec, INNO_R03, INNO_R03_DACR_MSK \|
	INNO_R03_FWL_MSK, reg03_val);
	return 0;
	}

	#define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 \| \
	SNDRV_PCM_RATE_16000 \| \
	SNDRV_PCM_RATE_32000 \| \
	SNDRV_PCM_RATE_44100 \| \
	SNDRV_PCM_RATE_48000 \| \
	SNDRV_PCM_RATE_96000)

	#define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE \| \
	SNDRV_PCM_FMTBIT_S20_3LE \| \
	SNDRV_PCM_FMTBIT_S24_LE \| \
	SNDRV_PCM_FMTBIT_S32_LE)

	static const struct snd_soc_dai_ops rk3036_codec_dai_ops = {
	.set_fmt = rk3036_codec_dai_set_fmt,
	.hw_params = rk3036_codec_dai_hw_params,
	};

	static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = {
	{
	.name = "rk3036-codec-dai",
	.playback = {
	.stream_name = "Playback",
	.channels_min = 1,
	.channels_max = 2,
	.rates = RK3036_CODEC_RATES,
	.formats = RK3036_CODEC_FMTS,
	},
	.ops = &rk3036_codec_dai_ops,
	.symmetric_rates = 1,
	},
	};

	static void rk3036_codec_reset(struct snd_soc_codec *codec)
	{
	snd_soc_write(codec, INNO_R00,
	INNO_R00_CSR_RESET \| INNO_R00_CDCR_RESET);
	snd_soc_write(codec, INNO_R00,
	INNO_R00_CSR_WORK \| INNO_R00_CDCR_WORK);
	}

	static int rk3036_codec_probe(struct snd_soc_codec *codec)
	{
	rk3036_codec_reset(codec);
	return 0;
	}

	static int rk3036_codec_remove(struct snd_soc_codec *codec)
	{
	rk3036_codec_reset(codec);
	return 0;
	}

	static int rk3036_codec_set_bias_level(struct snd_soc_codec *codec,
	enum snd_soc_bias_level level)
	{
	switch (level) {
	case SND_SOC_BIAS_STANDBY:
	/* set a big current for capacitor charging. */
	snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
	/* start precharge */
	snd_soc_write(codec, INNO_R06, INNO_R06_DAC_PRECHARGE);

	break;

	case SND_SOC_BIAS_OFF:
	/* set a big current for capacitor discharging. */
	snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR);
	/* start discharge. */
	snd_soc_write(codec, INNO_R06, INNO_R06_DAC_DISCHARGE);

	break;
	default:
	break;
	}

	return 0;
	}

	static const struct snd_soc_codec_driver rk3036_codec_driver = {
	.probe = rk3036_codec_probe,
	.remove = rk3036_codec_remove,
	.set_bias_level = rk3036_codec_set_bias_level,
	.component_driver = {
	.controls = rk3036_codec_dapm_controls,
	.num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls),
	.dapm_routes = rk3036_codec_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes),
	.dapm_widgets = rk3036_codec_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets),
	},
	};

	static const struct regmap_config rk3036_codec_regmap_config = {
	.reg_bits = 32,
	.reg_stride = 4,
	.val_bits = 32,
	};

	#define GRF_SOC_CON0 0x00140
	#define GRF_ACODEC_SEL (BIT(10) \| BIT(16 + 10))

	static int rk3036_codec_platform_probe(struct platform_device *pdev)
	{
	struct rk3036_codec_priv *priv;
	struct device_node *of_node = pdev->dev.of_node;
	struct resource *res;
	void __iomem *base;
	struct regmap *grf;
	int ret;

	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
	return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	base = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(base))
	return PTR_ERR(base);

	priv->base = base;
	priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
	&rk3036_codec_regmap_config);
	if (IS_ERR(priv->regmap)) {
	dev_err(&pdev->dev, "init regmap failed\n");
	return PTR_ERR(priv->regmap);
	}

	grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf");
	if (IS_ERR(grf)) {
	dev_err(&pdev->dev, "needs 'rockchip,grf' property\n");
	return PTR_ERR(grf);
	}
	ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL);
	if (ret) {
	dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret);
	return ret;
	}

	priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk");
	if (IS_ERR(priv->pclk))
	return PTR_ERR(priv->pclk);

	ret = clk_prepare_enable(priv->pclk);
	if (ret < 0) {
	dev_err(&pdev->dev, "failed to enable clk\n");
	return ret;
	}

	priv->dev = &pdev->dev;
	dev_set_drvdata(&pdev->dev, priv);

	ret = snd_soc_register_codec(&pdev->dev, &rk3036_codec_driver,
	rk3036_codec_dai_driver,
	ARRAY_SIZE(rk3036_codec_dai_driver));
	if (ret) {
	clk_disable_unprepare(priv->pclk);
	dev_set_drvdata(&pdev->dev, NULL);
	}

	return ret;
	}

	static int rk3036_codec_platform_remove(struct platform_device *pdev)
	{
	struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev);

	snd_soc_unregister_codec(&pdev->dev);
	clk_disable_unprepare(priv->pclk);

	return 0;
	}

	static const struct of_device_id rk3036_codec_of_match[] = {
	{ .compatible = "rockchip,rk3036-codec", },
	{}
	};
	MODULE_DEVICE_TABLE(of, rk3036_codec_of_match);

	static struct platform_driver rk3036_codec_platform_driver = {
	.driver = {
	.name = "rk3036-codec-platform",
	.of_match_table = of_match_ptr(rk3036_codec_of_match),
	},
	.probe = rk3036_codec_platform_probe,
	.remove = rk3036_codec_platform_remove,
	};

	module_platform_driver(rk3036_codec_platform_driver);

	MODULE_AUTHOR("Rockchip Inc.");
	MODULE_DESCRIPTION("Rockchip rk3036 codec driver");
	MODULE_LICENSE("GPL");