sound/soc/meson/g12a-toacodec.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // Copyright (c) 2020 BayLibre, SAS.
 // Author: Jerome Brunet <jbrunet@baylibre.com>

 #include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <sound/pcm_params.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
 #include <sound/soc.h>
 #include <sound/soc-dai.h>

 #include <dt-bindings/sound/meson-g12a-toacodec.h>
 #include "axg-tdm.h"
 #include "meson-codec-glue.h"

 #define G12A_TOACODEC_DRV_NAME "g12a-toacodec"

 #define TOACODEC_CTRL0			0x0
 #define  CTRL0_ENABLE_SHIFT		31
 #define  CTRL0_DAT_SEL_SM1_MSB		19
 #define  CTRL0_DAT_SEL_SM1_LSB		18
 #define  CTRL0_DAT_SEL_MSB		15
 #define  CTRL0_DAT_SEL_LSB		14
 #define  CTRL0_LANE_SEL_SM1		16
 #define  CTRL0_LANE_SEL			12
 #define  CTRL0_LRCLK_SEL_SM1_MSB	14
 #define  CTRL0_LRCLK_SEL_SM1_LSB	12
 #define  CTRL0_LRCLK_SEL_MSB		9
 #define  CTRL0_LRCLK_SEL_LSB		8
 #define  CTRL0_LRCLK_INV_SM1		BIT(10)
 #define  CTRL0_BLK_CAP_INV_SM1		BIT(9)
 #define  CTRL0_BLK_CAP_INV		BIT(7)
 #define  CTRL0_BCLK_O_INV_SM1		BIT(8)
 #define  CTRL0_BCLK_O_INV		BIT(6)
 #define  CTRL0_BCLK_SEL_SM1_MSB		6
 #define  CTRL0_BCLK_SEL_MSB		5
 #define  CTRL0_BCLK_SEL_LSB		4
 #define  CTRL0_MCLK_SEL			GENMASK(2, 0)

 #define TOACODEC_OUT_CHMAX		2

 struct g12a_toacodec {
 	struct regmap_field *field_dat_sel;
 	struct regmap_field *field_lrclk_sel;
 	struct regmap_field *field_bclk_sel;
 };

 struct g12a_toacodec_match_data {
 	const struct snd_soc_component_driver *component_drv;
 	struct reg_field field_dat_sel;
 	struct reg_field field_lrclk_sel;
 	struct reg_field field_bclk_sel;
 };

 static const char * const g12a_toacodec_mux_texts[] = {
 	"I2S A", "I2S B", "I2S C",
 };

 static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol,
 				      struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *component =
 		snd_soc_dapm_kcontrol_component(kcontrol);
 	struct g12a_toacodec *priv = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dapm_context *dapm =
 		snd_soc_dapm_kcontrol_dapm(kcontrol);
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 	unsigned int mux, reg;

 	mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
 	regmap_field_read(priv->field_dat_sel, &reg);

 	if (mux == reg)
 		return 0;

 	/* Force disconnect of the mux while updating */
 	snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

 	regmap_field_write(priv->field_dat_sel, mux);
 	regmap_field_write(priv->field_lrclk_sel, mux);
 	regmap_field_write(priv->field_bclk_sel, mux);

 	/*
 	 * FIXME:
 	 * On this soc, the glue gets the MCLK directly from the clock
 	 * controller instead of going the through the TDM interface.
 	 *
 	 * Here we assume interface A uses clock A, etc ... While it is
 	 * true for now, it could be different. Instead the glue should
 	 * find out the clock used by the interface and select the same
 	 * source. For that, we will need regmap backed clock mux which
 	 * is a work in progress
 	 */
 	snd_soc_component_update_bits(component, e->reg,
 				      CTRL0_MCLK_SEL,
 				      FIELD_PREP(CTRL0_MCLK_SEL, mux));

 	snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);

 	return 0;
 }

 static SOC_ENUM_SINGLE_DECL(g12a_toacodec_mux_enum, TOACODEC_CTRL0,
 			    CTRL0_DAT_SEL_LSB,
 			    g12a_toacodec_mux_texts);

 static SOC_ENUM_SINGLE_DECL(sm1_toacodec_mux_enum, TOACODEC_CTRL0,
 			    CTRL0_DAT_SEL_SM1_LSB,
 			    g12a_toacodec_mux_texts);

 static const struct snd_kcontrol_new g12a_toacodec_mux =
 	SOC_DAPM_ENUM_EXT("Source", g12a_toacodec_mux_enum,
 			  snd_soc_dapm_get_enum_double,
 			  g12a_toacodec_mux_put_enum);

 static const struct snd_kcontrol_new sm1_toacodec_mux =
 	SOC_DAPM_ENUM_EXT("Source", sm1_toacodec_mux_enum,
 			  snd_soc_dapm_get_enum_double,
 			  g12a_toacodec_mux_put_enum);

 static const struct snd_kcontrol_new g12a_toacodec_out_enable =
 	SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOACODEC_CTRL0,
 				    CTRL0_ENABLE_SHIFT, 1, 0);

 static const struct snd_soc_dapm_widget g12a_toacodec_widgets[] = {
 	SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
 			 &g12a_toacodec_mux),
 	SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
 			    &g12a_toacodec_out_enable),
 };

 static const struct snd_soc_dapm_widget sm1_toacodec_widgets[] = {
 	SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
 			 &sm1_toacodec_mux),
 	SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
 			    &g12a_toacodec_out_enable),
 };

 static int g12a_toacodec_input_hw_params(struct snd_pcm_substream *substream,
 					 struct snd_pcm_hw_params *params,
 					 struct snd_soc_dai *dai)
 {
 	struct meson_codec_glue_input *data;
 	int ret;

 	ret = meson_codec_glue_input_hw_params(substream, params, dai);
 	if (ret)
 		return ret;

 	/* The glue will provide 1 lane out of the 4 to the output */
 	data = meson_codec_glue_input_get_data(dai);
 	data->params.channels_min = min_t(unsigned int, TOACODEC_OUT_CHMAX,
 					data->params.channels_min);
 	data->params.channels_max = min_t(unsigned int, TOACODEC_OUT_CHMAX,
 					data->params.channels_max);

 	return 0;
 }

 static const struct snd_soc_dai_ops g12a_toacodec_input_ops = {
 	.hw_params	= g12a_toacodec_input_hw_params,
 	.set_fmt	= meson_codec_glue_input_set_fmt,
 };

 static const struct snd_soc_dai_ops g12a_toacodec_output_ops = {
 	.startup	= meson_codec_glue_output_startup,
 };

 #define TOACODEC_STREAM(xname, xsuffix, xchmax)			\
 {								\
 	.stream_name	= xname " " xsuffix,			\
 	.channels_min	= 1,					\
 	.channels_max	= (xchmax),				\
 	.rate_min       = 5512,					\
 	.rate_max	= 192000,				\
 	.formats	= AXG_TDM_FORMATS,			\
 }

 #define TOACODEC_INPUT(xname, xid) {					\
 	.name = xname,							\
 	.id = (xid),							\
 	.playback = TOACODEC_STREAM(xname, "Playback", 8),		\
 	.ops = &g12a_toacodec_input_ops,				\
 	.probe = meson_codec_glue_input_dai_probe,			\
 	.remove = meson_codec_glue_input_dai_remove,			\
 }

 #define TOACODEC_OUTPUT(xname, xid) {					\
 	.name = xname,							\
 	.id = (xid),							\
 	.capture = TOACODEC_STREAM(xname, "Capture", TOACODEC_OUT_CHMAX), \
 	.ops = &g12a_toacodec_output_ops,				\
 }

 static struct snd_soc_dai_driver g12a_toacodec_dai_drv[] = {
 	TOACODEC_INPUT("IN A", TOACODEC_IN_A),
 	TOACODEC_INPUT("IN B", TOACODEC_IN_B),
 	TOACODEC_INPUT("IN C", TOACODEC_IN_C),
 	TOACODEC_OUTPUT("OUT", TOACODEC_OUT),
 };

 static int g12a_toacodec_component_probe(struct snd_soc_component *c)
 {
 	/* Initialize the static clock parameters */
 	return snd_soc_component_write(c, TOACODEC_CTRL0,
 				       CTRL0_BLK_CAP_INV);
 }

 static int sm1_toacodec_component_probe(struct snd_soc_component *c)
 {
 	/* Initialize the static clock parameters */
 	return snd_soc_component_write(c, TOACODEC_CTRL0,
 				       CTRL0_BLK_CAP_INV_SM1);
 }

 static const struct snd_soc_dapm_route g12a_toacodec_routes[] = {
 	{ "SRC", "I2S A", "IN A Playback" },
 	{ "SRC", "I2S B", "IN B Playback" },
 	{ "SRC", "I2S C", "IN C Playback" },
 	{ "OUT EN", "Switch", "SRC" },
 	{ "OUT Capture", NULL, "OUT EN" },
 };

 static const struct snd_kcontrol_new g12a_toacodec_controls[] = {
 	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL, 3, 0),
 };

 static const struct snd_kcontrol_new sm1_toacodec_controls[] = {
 	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 3, 0),
 };

 static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
 	.probe			= g12a_toacodec_component_probe,
 	.controls		= g12a_toacodec_controls,
 	.num_controls		= ARRAY_SIZE(g12a_toacodec_controls),
 	.dapm_widgets		= g12a_toacodec_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(g12a_toacodec_widgets),
 	.dapm_routes		= g12a_toacodec_routes,
 	.num_dapm_routes	= ARRAY_SIZE(g12a_toacodec_routes),
 	.endianness		= 1,
 };

 static const struct snd_soc_component_driver sm1_toacodec_component_drv = {
 	.probe			= sm1_toacodec_component_probe,
 	.controls		= sm1_toacodec_controls,
 	.num_controls		= ARRAY_SIZE(sm1_toacodec_controls),
 	.dapm_widgets		= sm1_toacodec_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(sm1_toacodec_widgets),
 	.dapm_routes		= g12a_toacodec_routes,
 	.num_dapm_routes	= ARRAY_SIZE(g12a_toacodec_routes),
 	.endianness		= 1,
 };

 static const struct regmap_config g12a_toacodec_regmap_cfg = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
 	.reg_stride	= 4,
 };

 static const struct g12a_toacodec_match_data g12a_toacodec_match_data = {
 	.component_drv	= &g12a_toacodec_component_drv,
 	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, 14, 15),
 	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 8, 9),
 	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, 4, 5),
 };

 static const struct g12a_toacodec_match_data sm1_toacodec_match_data = {
 	.component_drv	= &sm1_toacodec_component_drv,
 	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, 18, 19),
 	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 12, 14),
 	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, 4, 6),
 };

 static const struct of_device_id g12a_toacodec_of_match[] = {
 	{
 		.compatible = "amlogic,g12a-toacodec",
 		.data = &g12a_toacodec_match_data,
 	},
 	{
 		.compatible = "amlogic,sm1-toacodec",
 		.data = &sm1_toacodec_match_data,
 	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, g12a_toacodec_of_match);

 static int g12a_toacodec_probe(struct platform_device *pdev)
 {
 	const struct g12a_toacodec_match_data *data;
 	struct device *dev = &pdev->dev;
 	struct g12a_toacodec *priv;
 	void __iomem *regs;
 	struct regmap *map;
 	int ret;

 	data = device_get_match_data(dev);
 	if (!data) {
 		dev_err(dev, "failed to match device\n");
 		return -ENODEV;
 	}

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

 	platform_set_drvdata(pdev, priv);

 	ret = device_reset(dev);
 	if (ret)
 		return ret;

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

 	map = devm_regmap_init_mmio(dev, regs, &g12a_toacodec_regmap_cfg);
 	if (IS_ERR(map)) {
 		dev_err(dev, "failed to init regmap: %ld\n",
 			PTR_ERR(map));
 		return PTR_ERR(map);
 	}

 	priv->field_dat_sel = devm_regmap_field_alloc(dev, map, data->field_dat_sel);
 	if (IS_ERR(priv->field_dat_sel))
 		return PTR_ERR(priv->field_dat_sel);

 	priv->field_lrclk_sel = devm_regmap_field_alloc(dev, map, data->field_lrclk_sel);
 	if (IS_ERR(priv->field_lrclk_sel))
 		return PTR_ERR(priv->field_lrclk_sel);

 	priv->field_bclk_sel = devm_regmap_field_alloc(dev, map, data->field_bclk_sel);
 	if (IS_ERR(priv->field_bclk_sel))
 		return PTR_ERR(priv->field_bclk_sel);

 	return devm_snd_soc_register_component(dev,
 			data->component_drv, g12a_toacodec_dai_drv,
 			ARRAY_SIZE(g12a_toacodec_dai_drv));
 }

 static struct platform_driver g12a_toacodec_pdrv = {
 	.driver = {
 		.name = G12A_TOACODEC_DRV_NAME,
 		.of_match_table = g12a_toacodec_of_match,
 	},
 	.probe = g12a_toacodec_probe,
 };
 module_platform_driver(g12a_toacodec_pdrv);

 MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
 MODULE_DESCRIPTION("Amlogic G12a To Internal DAC Codec Driver");
 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	//
	// Copyright (c) 2020 BayLibre, SAS.
	// Author: Jerome Brunet <jbrunet@baylibre.com>

	#include <linux/bitfield.h>
	#include <linux/clk.h>
	#include <linux/module.h>
	#include <sound/pcm_params.h>
	#include <linux/regmap.h>
	#include <linux/regulator/consumer.h>
	#include <linux/reset.h>
	#include <sound/soc.h>
	#include <sound/soc-dai.h>

	#include <dt-bindings/sound/meson-g12a-toacodec.h>
	#include "axg-tdm.h"
	#include "meson-codec-glue.h"

	#define G12A_TOACODEC_DRV_NAME "g12a-toacodec"

	#define TOACODEC_CTRL0 0x0
	#define CTRL0_ENABLE_SHIFT 31
	#define CTRL0_DAT_SEL_SM1_MSB 19
	#define CTRL0_DAT_SEL_SM1_LSB 18
	#define CTRL0_DAT_SEL_MSB 15
	#define CTRL0_DAT_SEL_LSB 14
	#define CTRL0_LANE_SEL_SM1 16
	#define CTRL0_LANE_SEL 12
	#define CTRL0_LRCLK_SEL_SM1_MSB 14
	#define CTRL0_LRCLK_SEL_SM1_LSB 12
	#define CTRL0_LRCLK_SEL_MSB 9
	#define CTRL0_LRCLK_SEL_LSB 8
	#define CTRL0_LRCLK_INV_SM1 BIT(10)
	#define CTRL0_BLK_CAP_INV_SM1 BIT(9)
	#define CTRL0_BLK_CAP_INV BIT(7)
	#define CTRL0_BCLK_O_INV_SM1 BIT(8)
	#define CTRL0_BCLK_O_INV BIT(6)
	#define CTRL0_BCLK_SEL_SM1_MSB 6
	#define CTRL0_BCLK_SEL_MSB 5
	#define CTRL0_BCLK_SEL_LSB 4
	#define CTRL0_MCLK_SEL GENMASK(2, 0)

	#define TOACODEC_OUT_CHMAX 2

	struct g12a_toacodec {
	struct regmap_field *field_dat_sel;
	struct regmap_field *field_lrclk_sel;
	struct regmap_field *field_bclk_sel;
	};

	struct g12a_toacodec_match_data {
	const struct snd_soc_component_driver *component_drv;
	struct reg_field field_dat_sel;
	struct reg_field field_lrclk_sel;
	struct reg_field field_bclk_sel;
	};

	static const char * const g12a_toacodec_mux_texts[] = {
	"I2S A", "I2S B", "I2S C",
	};

	static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_component *component =
	snd_soc_dapm_kcontrol_component(kcontrol);
	struct g12a_toacodec *priv = snd_soc_component_get_drvdata(component);
	struct snd_soc_dapm_context *dapm =
	snd_soc_dapm_kcontrol_dapm(kcontrol);
	struct soc_enum e = (struct soc_enum )kcontrol->private_value;
	unsigned int mux, reg;

	mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
	regmap_field_read(priv->field_dat_sel, &reg);

	if (mux == reg)
	return 0;

	/* Force disconnect of the mux while updating */
	snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

	regmap_field_write(priv->field_dat_sel, mux);
	regmap_field_write(priv->field_lrclk_sel, mux);
	regmap_field_write(priv->field_bclk_sel, mux);

	/*
	* FIXME:
	* On this soc, the glue gets the MCLK directly from the clock
	* controller instead of going the through the TDM interface.
	*
	* Here we assume interface A uses clock A, etc ... While it is
	* true for now, it could be different. Instead the glue should
	* find out the clock used by the interface and select the same
	* source. For that, we will need regmap backed clock mux which
	* is a work in progress
	*/
	snd_soc_component_update_bits(component, e->reg,
	CTRL0_MCLK_SEL,
	FIELD_PREP(CTRL0_MCLK_SEL, mux));

	snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);

	return 0;
	}

	static SOC_ENUM_SINGLE_DECL(g12a_toacodec_mux_enum, TOACODEC_CTRL0,
	CTRL0_DAT_SEL_LSB,
	g12a_toacodec_mux_texts);

	static SOC_ENUM_SINGLE_DECL(sm1_toacodec_mux_enum, TOACODEC_CTRL0,
	CTRL0_DAT_SEL_SM1_LSB,
	g12a_toacodec_mux_texts);

	static const struct snd_kcontrol_new g12a_toacodec_mux =
	SOC_DAPM_ENUM_EXT("Source", g12a_toacodec_mux_enum,
	snd_soc_dapm_get_enum_double,
	g12a_toacodec_mux_put_enum);

	static const struct snd_kcontrol_new sm1_toacodec_mux =
	SOC_DAPM_ENUM_EXT("Source", sm1_toacodec_mux_enum,
	snd_soc_dapm_get_enum_double,
	g12a_toacodec_mux_put_enum);

	static const struct snd_kcontrol_new g12a_toacodec_out_enable =
	SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOACODEC_CTRL0,
	CTRL0_ENABLE_SHIFT, 1, 0);

	static const struct snd_soc_dapm_widget g12a_toacodec_widgets[] = {
	SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
	&g12a_toacodec_mux),
	SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
	&g12a_toacodec_out_enable),
	};

	static const struct snd_soc_dapm_widget sm1_toacodec_widgets[] = {
	SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
	&sm1_toacodec_mux),
	SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
	&g12a_toacodec_out_enable),
	};

	static int g12a_toacodec_input_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
	{
	struct meson_codec_glue_input *data;
	int ret;

	ret = meson_codec_glue_input_hw_params(substream, params, dai);
	if (ret)
	return ret;

	/* The glue will provide 1 lane out of the 4 to the output */
	data = meson_codec_glue_input_get_data(dai);
	data->params.channels_min = min_t(unsigned int, TOACODEC_OUT_CHMAX,
	data->params.channels_min);
	data->params.channels_max = min_t(unsigned int, TOACODEC_OUT_CHMAX,
	data->params.channels_max);

	return 0;
	}

	static const struct snd_soc_dai_ops g12a_toacodec_input_ops = {
	.hw_params = g12a_toacodec_input_hw_params,
	.set_fmt = meson_codec_glue_input_set_fmt,
	};

	static const struct snd_soc_dai_ops g12a_toacodec_output_ops = {
	.startup = meson_codec_glue_output_startup,
	};

	#define TOACODEC_STREAM(xname, xsuffix, xchmax) \
	{ \
	.stream_name = xname " " xsuffix, \
	.channels_min = 1, \
	.channels_max = (xchmax), \
	.rate_min = 5512, \
	.rate_max = 192000, \
	.formats = AXG_TDM_FORMATS, \
	}

	#define TOACODEC_INPUT(xname, xid) { \
	.name = xname, \
	.id = (xid), \
	.playback = TOACODEC_STREAM(xname, "Playback", 8), \
	.ops = &g12a_toacodec_input_ops, \
	.probe = meson_codec_glue_input_dai_probe, \
	.remove = meson_codec_glue_input_dai_remove, \
	}

	#define TOACODEC_OUTPUT(xname, xid) { \
	.name = xname, \
	.id = (xid), \
	.capture = TOACODEC_STREAM(xname, "Capture", TOACODEC_OUT_CHMAX), \
	.ops = &g12a_toacodec_output_ops, \
	}

	static struct snd_soc_dai_driver g12a_toacodec_dai_drv[] = {
	TOACODEC_INPUT("IN A", TOACODEC_IN_A),
	TOACODEC_INPUT("IN B", TOACODEC_IN_B),
	TOACODEC_INPUT("IN C", TOACODEC_IN_C),
	TOACODEC_OUTPUT("OUT", TOACODEC_OUT),
	};

	static int g12a_toacodec_component_probe(struct snd_soc_component *c)
	{
	/* Initialize the static clock parameters */
	return snd_soc_component_write(c, TOACODEC_CTRL0,
	CTRL0_BLK_CAP_INV);
	}

	static int sm1_toacodec_component_probe(struct snd_soc_component *c)
	{
	/* Initialize the static clock parameters */
	return snd_soc_component_write(c, TOACODEC_CTRL0,
	CTRL0_BLK_CAP_INV_SM1);
	}

	static const struct snd_soc_dapm_route g12a_toacodec_routes[] = {
	{ "SRC", "I2S A", "IN A Playback" },
	{ "SRC", "I2S B", "IN B Playback" },
	{ "SRC", "I2S C", "IN C Playback" },
	{ "OUT EN", "Switch", "SRC" },
	{ "OUT Capture", NULL, "OUT EN" },
	};

	static const struct snd_kcontrol_new g12a_toacodec_controls[] = {
	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL, 3, 0),
	};

	static const struct snd_kcontrol_new sm1_toacodec_controls[] = {
	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 3, 0),
	};

	static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
	.probe = g12a_toacodec_component_probe,
	.controls = g12a_toacodec_controls,
	.num_controls = ARRAY_SIZE(g12a_toacodec_controls),
	.dapm_widgets = g12a_toacodec_widgets,
	.num_dapm_widgets = ARRAY_SIZE(g12a_toacodec_widgets),
	.dapm_routes = g12a_toacodec_routes,
	.num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
	.endianness = 1,
	};

	static const struct snd_soc_component_driver sm1_toacodec_component_drv = {
	.probe = sm1_toacodec_component_probe,
	.controls = sm1_toacodec_controls,
	.num_controls = ARRAY_SIZE(sm1_toacodec_controls),
	.dapm_widgets = sm1_toacodec_widgets,
	.num_dapm_widgets = ARRAY_SIZE(sm1_toacodec_widgets),
	.dapm_routes = g12a_toacodec_routes,
	.num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
	.endianness = 1,
	};

	static const struct regmap_config g12a_toacodec_regmap_cfg = {
	.reg_bits = 32,
	.val_bits = 32,
	.reg_stride = 4,
	};

	static const struct g12a_toacodec_match_data g12a_toacodec_match_data = {
	.component_drv = &g12a_toacodec_component_drv,
	.field_dat_sel = REG_FIELD(TOACODEC_CTRL0, 14, 15),
	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 8, 9),
	.field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 5),
	};

	static const struct g12a_toacodec_match_data sm1_toacodec_match_data = {
	.component_drv = &sm1_toacodec_component_drv,
	.field_dat_sel = REG_FIELD(TOACODEC_CTRL0, 18, 19),
	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 12, 14),
	.field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 6),
	};

	static const struct of_device_id g12a_toacodec_of_match[] = {
	{
	.compatible = "amlogic,g12a-toacodec",
	.data = &g12a_toacodec_match_data,
	},
	{
	.compatible = "amlogic,sm1-toacodec",
	.data = &sm1_toacodec_match_data,
	},
	{}
	};
	MODULE_DEVICE_TABLE(of, g12a_toacodec_of_match);

	static int g12a_toacodec_probe(struct platform_device *pdev)
	{
	const struct g12a_toacodec_match_data *data;
	struct device *dev = &pdev->dev;
	struct g12a_toacodec *priv;
	void __iomem *regs;
	struct regmap *map;
	int ret;

	data = device_get_match_data(dev);
	if (!data) {
	dev_err(dev, "failed to match device\n");
	return -ENODEV;
	}

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

	platform_set_drvdata(pdev, priv);

	ret = device_reset(dev);
	if (ret)
	return ret;

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

	map = devm_regmap_init_mmio(dev, regs, &g12a_toacodec_regmap_cfg);
	if (IS_ERR(map)) {
	dev_err(dev, "failed to init regmap: %ld\n",
	PTR_ERR(map));
	return PTR_ERR(map);
	}

	priv->field_dat_sel = devm_regmap_field_alloc(dev, map, data->field_dat_sel);
	if (IS_ERR(priv->field_dat_sel))
	return PTR_ERR(priv->field_dat_sel);

	priv->field_lrclk_sel = devm_regmap_field_alloc(dev, map, data->field_lrclk_sel);
	if (IS_ERR(priv->field_lrclk_sel))
	return PTR_ERR(priv->field_lrclk_sel);

	priv->field_bclk_sel = devm_regmap_field_alloc(dev, map, data->field_bclk_sel);
	if (IS_ERR(priv->field_bclk_sel))
	return PTR_ERR(priv->field_bclk_sel);

	return devm_snd_soc_register_component(dev,
	data->component_drv, g12a_toacodec_dai_drv,
	ARRAY_SIZE(g12a_toacodec_dai_drv));
	}

	static struct platform_driver g12a_toacodec_pdrv = {
	.driver = {
	.name = G12A_TOACODEC_DRV_NAME,
	.of_match_table = g12a_toacodec_of_match,
	},
	.probe = g12a_toacodec_probe,
	};
	module_platform_driver(g12a_toacodec_pdrv);

	MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
	MODULE_DESCRIPTION("Amlogic G12a To Internal DAC Codec Driver");
	MODULE_LICENSE("GPL v2");