sound/soc/uniphier/evea.c - third_party/linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // Socionext UniPhier EVEA ADC/DAC codec driver.
 //
 // Copyright (c) 2016-2017 Socionext Inc.

 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>

 #define DRV_NAME        "evea"
 #define EVEA_RATES      SNDRV_PCM_RATE_48000
 #define EVEA_FORMATS    SNDRV_PCM_FMTBIT_S32_LE

 #define AADCPOW(n)                           (0x0078 + 0x04 * (n))
 #define   AADCPOW_AADC_POWD                   BIT(0)
 #define ALINSW1                              0x0088
 #define   ALINSW1_SEL1_SHIFT                  3
 #define AHPOUTPOW                            0x0098
 #define   AHPOUTPOW_HP_ON                     BIT(4)
 #define ALINEPOW                             0x009c
 #define   ALINEPOW_LIN2_POWD                  BIT(3)
 #define   ALINEPOW_LIN1_POWD                  BIT(4)
 #define ALO1OUTPOW                           0x00a8
 #define   ALO1OUTPOW_LO1_ON                   BIT(4)
 #define ALO2OUTPOW                           0x00ac
 #define   ALO2OUTPOW_ADAC2_MUTE               BIT(0)
 #define   ALO2OUTPOW_LO2_ON                   BIT(4)
 #define AANAPOW                              0x00b8
 #define   AANAPOW_A_POWD                      BIT(4)
 #define ADACSEQ1(n)                          (0x0144 + 0x40 * (n))
 #define   ADACSEQ1_MMUTE                      BIT(1)
 #define ADACSEQ2(n)                          (0x0160 + 0x40 * (n))
 #define   ADACSEQ2_ADACIN_FIX                 BIT(0)
 #define ADAC1ODC                             0x0200
 #define   ADAC1ODC_HP_DIS_RES_MASK            GENMASK(2, 1)
 #define   ADAC1ODC_HP_DIS_RES_OFF             (0x0 << 1)
 #define   ADAC1ODC_HP_DIS_RES_ON              (0x3 << 1)
 #define   ADAC1ODC_ADAC_RAMPCLT_MASK          GENMASK(8, 7)
 #define   ADAC1ODC_ADAC_RAMPCLT_NORMAL        (0x0 << 7)
 #define   ADAC1ODC_ADAC_RAMPCLT_REDUCE        (0x1 << 7)

 struct evea_priv {
 	struct clk *clk, *clk_exiv;
 	struct reset_control *rst, *rst_exiv, *rst_adamv;
 	struct regmap *regmap;

 	int switch_lin;
 	int switch_lo;
 	int switch_hp;
 };

 static const char * const linsw1_sel1_text[] = {
 	"LIN1", "LIN2", "LIN3"
 };

 static SOC_ENUM_SINGLE_DECL(linsw1_sel1_enum,
 	ALINSW1, ALINSW1_SEL1_SHIFT,
 	linsw1_sel1_text);

 static const struct snd_kcontrol_new linesw1_mux[] = {
 	SOC_DAPM_ENUM("Line In 1 Source", linsw1_sel1_enum),
 };

 static const struct snd_soc_dapm_widget evea_widgets[] = {
 	SND_SOC_DAPM_ADC("ADC", NULL, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_MUX("Line In 1 Mux", SND_SOC_NOPM, 0, 0, linesw1_mux),
 	SND_SOC_DAPM_INPUT("LIN1_LP"),
 	SND_SOC_DAPM_INPUT("LIN1_RP"),
 	SND_SOC_DAPM_INPUT("LIN2_LP"),
 	SND_SOC_DAPM_INPUT("LIN2_RP"),
 	SND_SOC_DAPM_INPUT("LIN3_LP"),
 	SND_SOC_DAPM_INPUT("LIN3_RP"),

 	SND_SOC_DAPM_DAC("DAC HP", NULL, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_DAC("DAC LO1", NULL, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_DAC("DAC LO2", NULL, SND_SOC_NOPM, 0, 0),
 	SND_SOC_DAPM_OUTPUT("HP1_L"),
 	SND_SOC_DAPM_OUTPUT("HP1_R"),
 	SND_SOC_DAPM_OUTPUT("LO2_L"),
 	SND_SOC_DAPM_OUTPUT("LO2_R"),
 };

 static const struct snd_soc_dapm_route evea_routes[] = {
 	{ "Line In 1", NULL, "ADC" },
 	{ "ADC", NULL, "Line In 1 Mux" },
 	{ "Line In 1 Mux", "LIN1", "LIN1_LP" },
 	{ "Line In 1 Mux", "LIN1", "LIN1_RP" },
 	{ "Line In 1 Mux", "LIN2", "LIN2_LP" },
 	{ "Line In 1 Mux", "LIN2", "LIN2_RP" },
 	{ "Line In 1 Mux", "LIN3", "LIN3_LP" },
 	{ "Line In 1 Mux", "LIN3", "LIN3_RP" },

 	{ "DAC HP", NULL, "Headphone 1" },
 	{ "DAC LO1", NULL, "Line Out 1" },
 	{ "DAC LO2", NULL, "Line Out 2" },
 	{ "HP1_L", NULL, "DAC HP" },
 	{ "HP1_R", NULL, "DAC HP" },
 	{ "LO2_L", NULL, "DAC LO2" },
 	{ "LO2_R", NULL, "DAC LO2" },
 };

 static void evea_set_power_state_on(struct evea_priv *evea)
 {
 	struct regmap *map = evea->regmap;

 	regmap_update_bits(map, AANAPOW, AANAPOW_A_POWD,
 			   AANAPOW_A_POWD);

 	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
 			   ADAC1ODC_HP_DIS_RES_ON);

 	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_ADAC_RAMPCLT_MASK,
 			   ADAC1ODC_ADAC_RAMPCLT_REDUCE);

 	regmap_update_bits(map, ADACSEQ2(0), ADACSEQ2_ADACIN_FIX, 0);
 	regmap_update_bits(map, ADACSEQ2(1), ADACSEQ2_ADACIN_FIX, 0);
 	regmap_update_bits(map, ADACSEQ2(2), ADACSEQ2_ADACIN_FIX, 0);
 }

 static void evea_set_power_state_off(struct evea_priv *evea)
 {
 	struct regmap *map = evea->regmap;

 	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
 			   ADAC1ODC_HP_DIS_RES_ON);

 	regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
 			   ADACSEQ1_MMUTE);
 	regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
 			   ADACSEQ1_MMUTE);
 	regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
 			   ADACSEQ1_MMUTE);

 	regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
 	regmap_update_bits(map, ALO2OUTPOW, ALO2OUTPOW_LO2_ON, 0);
 	regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
 }

 static int evea_update_switch_lin(struct evea_priv *evea)
 {
 	struct regmap *map = evea->regmap;

 	if (evea->switch_lin) {
 		regmap_update_bits(map, ALINEPOW,
 				   ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD,
 				   ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD);

 		regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD,
 				   AADCPOW_AADC_POWD);
 		regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD,
 				   AADCPOW_AADC_POWD);
 	} else {
 		regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 0);
 		regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 0);

 		regmap_update_bits(map, ALINEPOW,
 				   ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD, 0);
 	}

 	return 0;
 }

 static int evea_update_switch_lo(struct evea_priv *evea)
 {
 	struct regmap *map = evea->regmap;

 	if (evea->switch_lo) {
 		regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 0);
 		regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 0);

 		regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON,
 				   ALO1OUTPOW_LO1_ON);
 		regmap_update_bits(map, ALO2OUTPOW,
 				   ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
 				   ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON);
 	} else {
 		regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
 				   ADACSEQ1_MMUTE);
 		regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
 				   ADACSEQ1_MMUTE);

 		regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
 		regmap_update_bits(map, ALO2OUTPOW,
 				   ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
 				   0);
 	}

 	return 0;
 }

 static int evea_update_switch_hp(struct evea_priv *evea)
 {
 	struct regmap *map = evea->regmap;

 	if (evea->switch_hp) {
 		regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 0);

 		regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON,
 				   AHPOUTPOW_HP_ON);

 		regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
 				   ADAC1ODC_HP_DIS_RES_OFF);
 	} else {
 		regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
 				   ADAC1ODC_HP_DIS_RES_ON);

 		regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
 				   ADACSEQ1_MMUTE);

 		regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
 	}

 	return 0;
 }

 static void evea_update_switch_all(struct evea_priv *evea)
 {
 	evea_update_switch_lin(evea);
 	evea_update_switch_lo(evea);
 	evea_update_switch_hp(evea);
 }

 static int evea_get_switch_lin(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	ucontrol->value.integer.value[0] = evea->switch_lin;

 	return 0;
 }

 static int evea_set_switch_lin(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	if (evea->switch_lin == ucontrol->value.integer.value[0])
 		return 0;

 	evea->switch_lin = ucontrol->value.integer.value[0];

 	return evea_update_switch_lin(evea);
 }

 static int evea_get_switch_lo(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	ucontrol->value.integer.value[0] = evea->switch_lo;

 	return 0;
 }

 static int evea_set_switch_lo(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	if (evea->switch_lo == ucontrol->value.integer.value[0])
 		return 0;

 	evea->switch_lo = ucontrol->value.integer.value[0];

 	return evea_update_switch_lo(evea);
 }

 static int evea_get_switch_hp(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	ucontrol->value.integer.value[0] = evea->switch_hp;

 	return 0;
 }

 static int evea_set_switch_hp(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	if (evea->switch_hp == ucontrol->value.integer.value[0])
 		return 0;

 	evea->switch_hp = ucontrol->value.integer.value[0];

 	return evea_update_switch_hp(evea);
 }

 static const struct snd_kcontrol_new evea_controls[] = {
 	SOC_SINGLE_BOOL_EXT("Line Capture Switch", 0,
 			    evea_get_switch_lin, evea_set_switch_lin),
 	SOC_SINGLE_BOOL_EXT("Line Playback Switch", 0,
 			    evea_get_switch_lo, evea_set_switch_lo),
 	SOC_SINGLE_BOOL_EXT("Headphone Playback Switch", 0,
 			    evea_get_switch_hp, evea_set_switch_hp),
 };

 static int evea_codec_probe(struct snd_soc_component *component)
 {
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	evea->switch_lin = 1;
 	evea->switch_lo = 1;
 	evea->switch_hp = 1;

 	evea_set_power_state_on(evea);
 	evea_update_switch_all(evea);

 	return 0;
 }

 static int evea_codec_suspend(struct snd_soc_component *component)
 {
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

 	evea_set_power_state_off(evea);

 	reset_control_assert(evea->rst_adamv);
 	reset_control_assert(evea->rst_exiv);
 	reset_control_assert(evea->rst);

 	clk_disable_unprepare(evea->clk_exiv);
 	clk_disable_unprepare(evea->clk);

 	return 0;
 }

 static int evea_codec_resume(struct snd_soc_component *component)
 {
 	struct evea_priv *evea = snd_soc_component_get_drvdata(component);
 	int ret;

 	ret = clk_prepare_enable(evea->clk);
 	if (ret)
 		return ret;

 	ret = clk_prepare_enable(evea->clk_exiv);
 	if (ret)
 		goto err_out_clock;

 	ret = reset_control_deassert(evea->rst);
 	if (ret)
 		goto err_out_clock_exiv;

 	ret = reset_control_deassert(evea->rst_exiv);
 	if (ret)
 		goto err_out_reset;

 	ret = reset_control_deassert(evea->rst_adamv);
 	if (ret)
 		goto err_out_reset_exiv;

 	evea_set_power_state_on(evea);
 	evea_update_switch_all(evea);

 	return 0;

 err_out_reset_exiv:
 	reset_control_assert(evea->rst_exiv);

 err_out_reset:
 	reset_control_assert(evea->rst);

 err_out_clock_exiv:
 	clk_disable_unprepare(evea->clk_exiv);

 err_out_clock:
 	clk_disable_unprepare(evea->clk);

 	return ret;
 }

 static struct snd_soc_component_driver soc_codec_evea = {
 	.probe			= evea_codec_probe,
 	.suspend		= evea_codec_suspend,
 	.resume			= evea_codec_resume,
 	.dapm_widgets		= evea_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(evea_widgets),
 	.dapm_routes		= evea_routes,
 	.num_dapm_routes	= ARRAY_SIZE(evea_routes),
 	.controls		= evea_controls,
 	.num_controls		= ARRAY_SIZE(evea_controls),
 	.idle_bias_on		= 1,
 	.use_pmdown_time	= 1,
 	.endianness		= 1,
 	.non_legacy_dai_naming	= 1,
 };

 static struct snd_soc_dai_driver soc_dai_evea[] = {
 	{
 		.name     = DRV_NAME "-line1",
 		.playback = {
 			.stream_name  = "Line Out 1",
 			.formats      = EVEA_FORMATS,
 			.rates        = EVEA_RATES,
 			.channels_min = 2,
 			.channels_max = 2,
 		},
 		.capture = {
 			.stream_name  = "Line In 1",
 			.formats      = EVEA_FORMATS,
 			.rates        = EVEA_RATES,
 			.channels_min = 2,
 			.channels_max = 2,
 		},
 	},
 	{
 		.name     = DRV_NAME "-hp1",
 		.playback = {
 			.stream_name  = "Headphone 1",
 			.formats      = EVEA_FORMATS,
 			.rates        = EVEA_RATES,
 			.channels_min = 2,
 			.channels_max = 2,
 		},
 	},
 	{
 		.name     = DRV_NAME "-lo2",
 		.playback = {
 			.stream_name  = "Line Out 2",
 			.formats      = EVEA_FORMATS,
 			.rates        = EVEA_RATES,
 			.channels_min = 2,
 			.channels_max = 2,
 		},
 	},
 };

 static const struct regmap_config evea_regmap_config = {
 	.reg_bits      = 32,
 	.reg_stride    = 4,
 	.val_bits      = 32,
 	.max_register  = 0xffc,
 	.cache_type    = REGCACHE_NONE,
 };

 static int evea_probe(struct platform_device *pdev)
 {
 	struct evea_priv *evea;
 	void __iomem *preg;
 	int ret;

 	evea = devm_kzalloc(&pdev->dev, sizeof(struct evea_priv), GFP_KERNEL);
 	if (!evea)
 		return -ENOMEM;

 	evea->clk = devm_clk_get(&pdev->dev, "evea");
 	if (IS_ERR(evea->clk))
 		return PTR_ERR(evea->clk);

 	evea->clk_exiv = devm_clk_get(&pdev->dev, "exiv");
 	if (IS_ERR(evea->clk_exiv))
 		return PTR_ERR(evea->clk_exiv);

 	evea->rst = devm_reset_control_get_shared(&pdev->dev, "evea");
 	if (IS_ERR(evea->rst))
 		return PTR_ERR(evea->rst);

 	evea->rst_exiv = devm_reset_control_get_shared(&pdev->dev, "exiv");
 	if (IS_ERR(evea->rst_exiv))
 		return PTR_ERR(evea->rst_exiv);

 	preg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(preg))
 		return PTR_ERR(preg);

 	evea->regmap = devm_regmap_init_mmio(&pdev->dev, preg,
 					     &evea_regmap_config);
 	if (IS_ERR(evea->regmap))
 		return PTR_ERR(evea->regmap);

 	ret = clk_prepare_enable(evea->clk);
 	if (ret)
 		return ret;

 	ret = clk_prepare_enable(evea->clk_exiv);
 	if (ret)
 		goto err_out_clock;

 	ret = reset_control_deassert(evea->rst);
 	if (ret)
 		goto err_out_clock_exiv;

 	ret = reset_control_deassert(evea->rst_exiv);
 	if (ret)
 		goto err_out_reset;

 	/* ADAMV will hangup if EXIV reset is asserted */
 	evea->rst_adamv = devm_reset_control_get_shared(&pdev->dev, "adamv");
 	if (IS_ERR(evea->rst_adamv)) {
 		ret = PTR_ERR(evea->rst_adamv);
 		goto err_out_reset_exiv;
 	}

 	ret = reset_control_deassert(evea->rst_adamv);
 	if (ret)
 		goto err_out_reset_exiv;

 	platform_set_drvdata(pdev, evea);

 	ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_evea,
 				     soc_dai_evea, ARRAY_SIZE(soc_dai_evea));
 	if (ret)
 		goto err_out_reset_adamv;

 	return 0;

 err_out_reset_adamv:
 	reset_control_assert(evea->rst_adamv);

 err_out_reset_exiv:
 	reset_control_assert(evea->rst_exiv);

 err_out_reset:
 	reset_control_assert(evea->rst);

 err_out_clock_exiv:
 	clk_disable_unprepare(evea->clk_exiv);

 err_out_clock:
 	clk_disable_unprepare(evea->clk);

 	return ret;
 }

 static int evea_remove(struct platform_device *pdev)
 {
 	struct evea_priv *evea = platform_get_drvdata(pdev);

 	reset_control_assert(evea->rst_adamv);
 	reset_control_assert(evea->rst_exiv);
 	reset_control_assert(evea->rst);

 	clk_disable_unprepare(evea->clk_exiv);
 	clk_disable_unprepare(evea->clk);

 	return 0;
 }

 static const struct of_device_id evea_of_match[] = {
 	{ .compatible = "socionext,uniphier-evea", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, evea_of_match);

 static struct platform_driver evea_codec_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = of_match_ptr(evea_of_match),
 	},
 	.probe  = evea_probe,
 	.remove = evea_remove,
 };
 module_platform_driver(evea_codec_driver);

 MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>");
 MODULE_DESCRIPTION("UniPhier EVEA codec driver");
 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	//
	// Socionext UniPhier EVEA ADC/DAC codec driver.
	//
	// Copyright (c) 2016-2017 Socionext Inc.

	#include <linux/clk.h>
	#include <linux/module.h>
	#include <linux/of.h>
	#include <linux/regmap.h>
	#include <linux/reset.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>

	#define DRV_NAME "evea"
	#define EVEA_RATES SNDRV_PCM_RATE_48000
	#define EVEA_FORMATS SNDRV_PCM_FMTBIT_S32_LE

	#define AADCPOW(n) (0x0078 + 0x04 * (n))
	#define AADCPOW_AADC_POWD BIT(0)
	#define ALINSW1 0x0088
	#define ALINSW1_SEL1_SHIFT 3
	#define AHPOUTPOW 0x0098
	#define AHPOUTPOW_HP_ON BIT(4)
	#define ALINEPOW 0x009c
	#define ALINEPOW_LIN2_POWD BIT(3)
	#define ALINEPOW_LIN1_POWD BIT(4)
	#define ALO1OUTPOW 0x00a8
	#define ALO1OUTPOW_LO1_ON BIT(4)
	#define ALO2OUTPOW 0x00ac
	#define ALO2OUTPOW_ADAC2_MUTE BIT(0)
	#define ALO2OUTPOW_LO2_ON BIT(4)
	#define AANAPOW 0x00b8
	#define AANAPOW_A_POWD BIT(4)
	#define ADACSEQ1(n) (0x0144 + 0x40 * (n))
	#define ADACSEQ1_MMUTE BIT(1)
	#define ADACSEQ2(n) (0x0160 + 0x40 * (n))
	#define ADACSEQ2_ADACIN_FIX BIT(0)
	#define ADAC1ODC 0x0200
	#define ADAC1ODC_HP_DIS_RES_MASK GENMASK(2, 1)
	#define ADAC1ODC_HP_DIS_RES_OFF (0x0 << 1)
	#define ADAC1ODC_HP_DIS_RES_ON (0x3 << 1)
	#define ADAC1ODC_ADAC_RAMPCLT_MASK GENMASK(8, 7)
	#define ADAC1ODC_ADAC_RAMPCLT_NORMAL (0x0 << 7)
	#define ADAC1ODC_ADAC_RAMPCLT_REDUCE (0x1 << 7)

	struct evea_priv {
	struct clk clk, clk_exiv;
	struct reset_control rst, rst_exiv, *rst_adamv;
	struct regmap *regmap;

	int switch_lin;
	int switch_lo;
	int switch_hp;
	};

	static const char * const linsw1_sel1_text[] = {
	"LIN1", "LIN2", "LIN3"
	};

	static SOC_ENUM_SINGLE_DECL(linsw1_sel1_enum,
	ALINSW1, ALINSW1_SEL1_SHIFT,
	linsw1_sel1_text);

	static const struct snd_kcontrol_new linesw1_mux[] = {
	SOC_DAPM_ENUM("Line In 1 Source", linsw1_sel1_enum),
	};

	static const struct snd_soc_dapm_widget evea_widgets[] = {
	SND_SOC_DAPM_ADC("ADC", NULL, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_MUX("Line In 1 Mux", SND_SOC_NOPM, 0, 0, linesw1_mux),
	SND_SOC_DAPM_INPUT("LIN1_LP"),
	SND_SOC_DAPM_INPUT("LIN1_RP"),
	SND_SOC_DAPM_INPUT("LIN2_LP"),
	SND_SOC_DAPM_INPUT("LIN2_RP"),
	SND_SOC_DAPM_INPUT("LIN3_LP"),
	SND_SOC_DAPM_INPUT("LIN3_RP"),

	SND_SOC_DAPM_DAC("DAC HP", NULL, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC("DAC LO1", NULL, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC("DAC LO2", NULL, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_OUTPUT("HP1_L"),
	SND_SOC_DAPM_OUTPUT("HP1_R"),
	SND_SOC_DAPM_OUTPUT("LO2_L"),
	SND_SOC_DAPM_OUTPUT("LO2_R"),
	};

	static const struct snd_soc_dapm_route evea_routes[] = {
	{ "Line In 1", NULL, "ADC" },
	{ "ADC", NULL, "Line In 1 Mux" },
	{ "Line In 1 Mux", "LIN1", "LIN1_LP" },
	{ "Line In 1 Mux", "LIN1", "LIN1_RP" },
	{ "Line In 1 Mux", "LIN2", "LIN2_LP" },
	{ "Line In 1 Mux", "LIN2", "LIN2_RP" },
	{ "Line In 1 Mux", "LIN3", "LIN3_LP" },
	{ "Line In 1 Mux", "LIN3", "LIN3_RP" },

	{ "DAC HP", NULL, "Headphone 1" },
	{ "DAC LO1", NULL, "Line Out 1" },
	{ "DAC LO2", NULL, "Line Out 2" },
	{ "HP1_L", NULL, "DAC HP" },
	{ "HP1_R", NULL, "DAC HP" },
	{ "LO2_L", NULL, "DAC LO2" },
	{ "LO2_R", NULL, "DAC LO2" },
	};

	static void evea_set_power_state_on(struct evea_priv *evea)
	{
	struct regmap *map = evea->regmap;

	regmap_update_bits(map, AANAPOW, AANAPOW_A_POWD,
	AANAPOW_A_POWD);

	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
	ADAC1ODC_HP_DIS_RES_ON);

	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_ADAC_RAMPCLT_MASK,
	ADAC1ODC_ADAC_RAMPCLT_REDUCE);

	regmap_update_bits(map, ADACSEQ2(0), ADACSEQ2_ADACIN_FIX, 0);
	regmap_update_bits(map, ADACSEQ2(1), ADACSEQ2_ADACIN_FIX, 0);
	regmap_update_bits(map, ADACSEQ2(2), ADACSEQ2_ADACIN_FIX, 0);
	}

	static void evea_set_power_state_off(struct evea_priv *evea)
	{
	struct regmap *map = evea->regmap;

	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
	ADAC1ODC_HP_DIS_RES_ON);

	regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);
	regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);
	regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);

	regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
	regmap_update_bits(map, ALO2OUTPOW, ALO2OUTPOW_LO2_ON, 0);
	regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
	}

	static int evea_update_switch_lin(struct evea_priv *evea)
	{
	struct regmap *map = evea->regmap;

	if (evea->switch_lin) {
	regmap_update_bits(map, ALINEPOW,
	ALINEPOW_LIN2_POWD \| ALINEPOW_LIN1_POWD,
	ALINEPOW_LIN2_POWD \| ALINEPOW_LIN1_POWD);

	regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD,
	AADCPOW_AADC_POWD);
	regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD,
	AADCPOW_AADC_POWD);
	} else {
	regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 0);
	regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 0);

	regmap_update_bits(map, ALINEPOW,
	ALINEPOW_LIN2_POWD \| ALINEPOW_LIN1_POWD, 0);
	}

	return 0;
	}

	static int evea_update_switch_lo(struct evea_priv *evea)
	{
	struct regmap *map = evea->regmap;

	if (evea->switch_lo) {
	regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 0);
	regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 0);

	regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON,
	ALO1OUTPOW_LO1_ON);
	regmap_update_bits(map, ALO2OUTPOW,
	ALO2OUTPOW_ADAC2_MUTE \| ALO2OUTPOW_LO2_ON,
	ALO2OUTPOW_ADAC2_MUTE \| ALO2OUTPOW_LO2_ON);
	} else {
	regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);
	regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);

	regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
	regmap_update_bits(map, ALO2OUTPOW,
	ALO2OUTPOW_ADAC2_MUTE \| ALO2OUTPOW_LO2_ON,
	0);
	}

	return 0;
	}

	static int evea_update_switch_hp(struct evea_priv *evea)
	{
	struct regmap *map = evea->regmap;

	if (evea->switch_hp) {
	regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 0);

	regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON,
	AHPOUTPOW_HP_ON);

	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
	ADAC1ODC_HP_DIS_RES_OFF);
	} else {
	regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
	ADAC1ODC_HP_DIS_RES_ON);

	regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
	ADACSEQ1_MMUTE);

	regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
	}

	return 0;
	}

	static void evea_update_switch_all(struct evea_priv *evea)
	{
	evea_update_switch_lin(evea);
	evea_update_switch_lo(evea);
	evea_update_switch_hp(evea);
	}

	static int evea_get_switch_lin(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	ucontrol->value.integer.value[0] = evea->switch_lin;

	return 0;
	}

	static int evea_set_switch_lin(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	if (evea->switch_lin == ucontrol->value.integer.value[0])
	return 0;

	evea->switch_lin = ucontrol->value.integer.value[0];

	return evea_update_switch_lin(evea);
	}

	static int evea_get_switch_lo(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	ucontrol->value.integer.value[0] = evea->switch_lo;

	return 0;
	}

	static int evea_set_switch_lo(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	if (evea->switch_lo == ucontrol->value.integer.value[0])
	return 0;

	evea->switch_lo = ucontrol->value.integer.value[0];

	return evea_update_switch_lo(evea);
	}

	static int evea_get_switch_hp(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	ucontrol->value.integer.value[0] = evea->switch_hp;

	return 0;
	}

	static int evea_set_switch_hp(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	if (evea->switch_hp == ucontrol->value.integer.value[0])
	return 0;

	evea->switch_hp = ucontrol->value.integer.value[0];

	return evea_update_switch_hp(evea);
	}

	static const struct snd_kcontrol_new evea_controls[] = {
	SOC_SINGLE_BOOL_EXT("Line Capture Switch", 0,
	evea_get_switch_lin, evea_set_switch_lin),
	SOC_SINGLE_BOOL_EXT("Line Playback Switch", 0,
	evea_get_switch_lo, evea_set_switch_lo),
	SOC_SINGLE_BOOL_EXT("Headphone Playback Switch", 0,
	evea_get_switch_hp, evea_set_switch_hp),
	};

	static int evea_codec_probe(struct snd_soc_component *component)
	{
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	evea->switch_lin = 1;
	evea->switch_lo = 1;
	evea->switch_hp = 1;

	evea_set_power_state_on(evea);
	evea_update_switch_all(evea);

	return 0;
	}

	static int evea_codec_suspend(struct snd_soc_component *component)
	{
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);

	evea_set_power_state_off(evea);

	reset_control_assert(evea->rst_adamv);
	reset_control_assert(evea->rst_exiv);
	reset_control_assert(evea->rst);

	clk_disable_unprepare(evea->clk_exiv);
	clk_disable_unprepare(evea->clk);

	return 0;
	}

	static int evea_codec_resume(struct snd_soc_component *component)
	{
	struct evea_priv *evea = snd_soc_component_get_drvdata(component);
	int ret;

	ret = clk_prepare_enable(evea->clk);
	if (ret)
	return ret;

	ret = clk_prepare_enable(evea->clk_exiv);
	if (ret)
	goto err_out_clock;

	ret = reset_control_deassert(evea->rst);
	if (ret)
	goto err_out_clock_exiv;

	ret = reset_control_deassert(evea->rst_exiv);
	if (ret)
	goto err_out_reset;

	ret = reset_control_deassert(evea->rst_adamv);
	if (ret)
	goto err_out_reset_exiv;

	evea_set_power_state_on(evea);
	evea_update_switch_all(evea);

	return 0;

	err_out_reset_exiv:
	reset_control_assert(evea->rst_exiv);

	err_out_reset:
	reset_control_assert(evea->rst);

	err_out_clock_exiv:
	clk_disable_unprepare(evea->clk_exiv);

	err_out_clock:
	clk_disable_unprepare(evea->clk);

	return ret;
	}

	static struct snd_soc_component_driver soc_codec_evea = {
	.probe = evea_codec_probe,
	.suspend = evea_codec_suspend,
	.resume = evea_codec_resume,
	.dapm_widgets = evea_widgets,
	.num_dapm_widgets = ARRAY_SIZE(evea_widgets),
	.dapm_routes = evea_routes,
	.num_dapm_routes = ARRAY_SIZE(evea_routes),
	.controls = evea_controls,
	.num_controls = ARRAY_SIZE(evea_controls),
	.idle_bias_on = 1,
	.use_pmdown_time = 1,
	.endianness = 1,
	.non_legacy_dai_naming = 1,
	};

	static struct snd_soc_dai_driver soc_dai_evea[] = {
	{
	.name = DRV_NAME "-line1",
	.playback = {
	.stream_name = "Line Out 1",
	.formats = EVEA_FORMATS,
	.rates = EVEA_RATES,
	.channels_min = 2,
	.channels_max = 2,
	},
	.capture = {
	.stream_name = "Line In 1",
	.formats = EVEA_FORMATS,
	.rates = EVEA_RATES,
	.channels_min = 2,
	.channels_max = 2,
	},
	},
	{
	.name = DRV_NAME "-hp1",
	.playback = {
	.stream_name = "Headphone 1",
	.formats = EVEA_FORMATS,
	.rates = EVEA_RATES,
	.channels_min = 2,
	.channels_max = 2,
	},
	},
	{
	.name = DRV_NAME "-lo2",
	.playback = {
	.stream_name = "Line Out 2",
	.formats = EVEA_FORMATS,
	.rates = EVEA_RATES,
	.channels_min = 2,
	.channels_max = 2,
	},
	},
	};

	static const struct regmap_config evea_regmap_config = {
	.reg_bits = 32,
	.reg_stride = 4,
	.val_bits = 32,
	.max_register = 0xffc,
	.cache_type = REGCACHE_NONE,
	};

	static int evea_probe(struct platform_device *pdev)
	{
	struct evea_priv *evea;
	void __iomem *preg;
	int ret;

	evea = devm_kzalloc(&pdev->dev, sizeof(struct evea_priv), GFP_KERNEL);
	if (!evea)
	return -ENOMEM;

	evea->clk = devm_clk_get(&pdev->dev, "evea");
	if (IS_ERR(evea->clk))
	return PTR_ERR(evea->clk);

	evea->clk_exiv = devm_clk_get(&pdev->dev, "exiv");
	if (IS_ERR(evea->clk_exiv))
	return PTR_ERR(evea->clk_exiv);

	evea->rst = devm_reset_control_get_shared(&pdev->dev, "evea");
	if (IS_ERR(evea->rst))
	return PTR_ERR(evea->rst);

	evea->rst_exiv = devm_reset_control_get_shared(&pdev->dev, "exiv");
	if (IS_ERR(evea->rst_exiv))
	return PTR_ERR(evea->rst_exiv);

	preg = devm_platform_ioremap_resource(pdev, 0);
	if (IS_ERR(preg))
	return PTR_ERR(preg);

	evea->regmap = devm_regmap_init_mmio(&pdev->dev, preg,
	&evea_regmap_config);
	if (IS_ERR(evea->regmap))
	return PTR_ERR(evea->regmap);

	ret = clk_prepare_enable(evea->clk);
	if (ret)
	return ret;

	ret = clk_prepare_enable(evea->clk_exiv);
	if (ret)
	goto err_out_clock;

	ret = reset_control_deassert(evea->rst);
	if (ret)
	goto err_out_clock_exiv;

	ret = reset_control_deassert(evea->rst_exiv);
	if (ret)
	goto err_out_reset;

	/* ADAMV will hangup if EXIV reset is asserted */
	evea->rst_adamv = devm_reset_control_get_shared(&pdev->dev, "adamv");
	if (IS_ERR(evea->rst_adamv)) {
	ret = PTR_ERR(evea->rst_adamv);
	goto err_out_reset_exiv;
	}

	ret = reset_control_deassert(evea->rst_adamv);
	if (ret)
	goto err_out_reset_exiv;

	platform_set_drvdata(pdev, evea);

	ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_evea,
	soc_dai_evea, ARRAY_SIZE(soc_dai_evea));
	if (ret)
	goto err_out_reset_adamv;

	return 0;

	err_out_reset_adamv:
	reset_control_assert(evea->rst_adamv);

	err_out_reset_exiv:
	reset_control_assert(evea->rst_exiv);

	err_out_reset:
	reset_control_assert(evea->rst);

	err_out_clock_exiv:
	clk_disable_unprepare(evea->clk_exiv);

	err_out_clock:
	clk_disable_unprepare(evea->clk);

	return ret;
	}

	static int evea_remove(struct platform_device *pdev)
	{
	struct evea_priv *evea = platform_get_drvdata(pdev);

	reset_control_assert(evea->rst_adamv);
	reset_control_assert(evea->rst_exiv);
	reset_control_assert(evea->rst);

	clk_disable_unprepare(evea->clk_exiv);
	clk_disable_unprepare(evea->clk);

	return 0;
	}

	static const struct of_device_id evea_of_match[] = {
	{ .compatible = "socionext,uniphier-evea", },
	{}
	};
	MODULE_DEVICE_TABLE(of, evea_of_match);

	static struct platform_driver evea_codec_driver = {
	.driver = {
	.name = DRV_NAME,
	.of_match_table = of_match_ptr(evea_of_match),
	},
	.probe = evea_probe,
	.remove = evea_remove,
	};
	module_platform_driver(evea_codec_driver);

	MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>");
	MODULE_DESCRIPTION("UniPhier EVEA codec driver");
	MODULE_LICENSE("GPL v2");