Unverified Commit eae9f9ce authored by Raphael-Xu's avatar Raphael-Xu Committed by Mark Brown
Browse files

ASoC: add tas2780 driver 



1.update Kconfig and Makefile 2.add tas2780.c and tas2780.h

Signed-off-by: default avatarRaphael-Xu <13691752556@139.com>
Link: https://lore.kernel.org/r/20220707123343.2403-1-13691752556@139.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0de876c1

sound/soc/codecs/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -219,6 +219,7 @@ config SND_SOC_ALL_CODECS 
	imply SND_SOC_TAS2562

	imply SND_SOC_TAS2764

	imply SND_SOC_TAS2770

	imply SND_SOC_TAS2780

	imply SND_SOC_TAS5086

	imply SND_SOC_TAS571X

	imply SND_SOC_TAS5720
@@ -1535,6 +1536,13 @@ config SND_SOC_TAS2770 
	tristate "Texas Instruments TAS2770 speaker amplifier"

	depends on I2C



config SND_SOC_TAS2780

	tristate "Texas Instruments TAS2780 Mono Audio amplifier"

	depends on I2C

	help

	  Enable support for Texas Instruments TAS2780 high-efficiency

	  digital input mono Class-D audio power amplifiers.



config SND_SOC_TAS5086

	tristate "Texas Instruments TAS5086 speaker amplifier"

	depends on I2C

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -348,6 +348,7 @@ snd-soc-tpa6130a2-objs := tpa6130a2.o 
snd-soc-tas2552-objs := tas2552.o

snd-soc-tas2562-objs := tas2562.o

snd-soc-tas2764-objs := tas2764.o

snd-soc-tas2780-objs := tas2780.o

# Mux

snd-soc-simple-mux-objs := simple-mux.o
@@ -592,6 +593,7 @@ obj-$(CONFIG_SND_SOC_STI_SAS) += snd-soc-sti-sas.o 
obj-$(CONFIG_SND_SOC_TAS2552)	+= snd-soc-tas2552.o

obj-$(CONFIG_SND_SOC_TAS2562)	+= snd-soc-tas2562.o

obj-$(CONFIG_SND_SOC_TAS2764)	+= snd-soc-tas2764.o

obj-$(CONFIG_SND_SOC_TAS2780)	+= snd-soc-tas2780.o

obj-$(CONFIG_SND_SOC_TAS5086)	+= snd-soc-tas5086.o

obj-$(CONFIG_SND_SOC_TAS571X)	+= snd-soc-tas571x.o

obj-$(CONFIG_SND_SOC_TAS5720)	+= snd-soc-tas5720.o

sound/soc/codecs/tas2780.c

0 → 100644
+663 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

// Driver for the Texas Instruments TAS2780 Mono

//		Audio amplifier

// Copyright (C) 2022 Texas Instruments Inc.



#include <linux/module.h>

#include <linux/err.h>

#include <linux/pm.h>

#include <linux/i2c.h>

#include <linux/gpio.h>

#include <linux/gpio/consumer.h>

#include <linux/regmap.h>

#include <linux/of.h>

#include <linux/of_gpio.h>

#include <sound/soc.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>

#include <sound/tlv.h>



#include "tas2780.h"



struct tas2780_priv {

	struct snd_soc_component *component;

	struct gpio_desc *reset_gpio;

	struct regmap *regmap;

	struct device *dev;

	int v_sense_slot;

	int i_sense_slot;

};



static void tas2780_reset(struct tas2780_priv *tas2780)

{

	int ret = 0;



	if (tas2780->reset_gpio) {

		gpiod_set_value_cansleep(tas2780->reset_gpio, 0);

		usleep_range(2000, 2050);

		gpiod_set_value_cansleep(tas2780->reset_gpio, 1);

		usleep_range(2000, 2050);

	}



	snd_soc_component_write(tas2780->component, TAS2780_SW_RST,

				TAS2780_RST);

	if (ret)

		dev_err(tas2780->dev, "%s:errCode:0x%x Reset error!\n",

			__func__, ret);

}



#ifdef CONFIG_PM

static int tas2780_codec_suspend(struct snd_soc_component *component)

{

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int ret = 0;



	ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,

		TAS2780_PWR_CTRL_MASK, TAS2780_PWR_CTRL_SHUTDOWN);

	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%0x:power down error\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

	regcache_cache_only(tas2780->regmap, true);

	regcache_mark_dirty(tas2780->regmap);

err:

	return ret;

}



static int tas2780_codec_resume(struct snd_soc_component *component)

{

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int ret = 0;



	ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,

		TAS2780_PWR_CTRL_MASK, TAS2780_PWR_CTRL_ACTIVE);



	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%0x:power down error\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

	regcache_cache_only(tas2780->regmap, false);

	ret = regcache_sync(tas2780->regmap);

err:

	return ret;

}

#endif



static const char * const tas2780_ASI1_src[] = {

	"I2C offset", "Left", "Right", "LeftRightDiv2",

};



static SOC_ENUM_SINGLE_DECL(

	tas2780_ASI1_src_enum, TAS2780_TDM_CFG2, 4, tas2780_ASI1_src);



static const struct snd_kcontrol_new tas2780_asi1_mux =

	SOC_DAPM_ENUM("ASI1 Source", tas2780_ASI1_src_enum);



static const struct snd_kcontrol_new isense_switch =

	SOC_DAPM_SINGLE("Switch", TAS2780_PWR_CTRL,

			TAS2780_ISENSE_POWER_EN, 1, 1);

static const struct snd_kcontrol_new vsense_switch =

	SOC_DAPM_SINGLE("Switch", TAS2780_PWR_CTRL,

			TAS2780_VSENSE_POWER_EN, 1, 1);



static const struct snd_soc_dapm_widget tas2780_dapm_widgets[] = {

	SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2780_asi1_mux),

	SND_SOC_DAPM_SWITCH("ISENSE", TAS2780_PWR_CTRL,

		TAS2780_ISENSE_POWER_EN, 1, &isense_switch),

	SND_SOC_DAPM_SWITCH("VSENSE", TAS2780_PWR_CTRL,

		TAS2780_VSENSE_POWER_EN, 1, &vsense_switch),

	SND_SOC_DAPM_OUTPUT("OUT"),

	SND_SOC_DAPM_SIGGEN("VMON"),

	SND_SOC_DAPM_SIGGEN("IMON")

};



static const struct snd_soc_dapm_route tas2780_audio_map[] = {

	{"ASI1 Sel", "I2C offset", "ASI1"},

	{"ASI1 Sel", "Left", "ASI1"},

	{"ASI1 Sel", "Right", "ASI1"},

	{"ASI1 Sel", "LeftRightDiv2", "ASI1"},

	{"OUT", NULL, "ASI1 Sel"},

	{"ISENSE", "Switch", "IMON"},

	{"VSENSE", "Switch", "VMON"},

};



static int tas2780_mute(struct snd_soc_dai *dai, int mute, int direction)

{

	struct snd_soc_component *component = dai->component;

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int ret = 0;



	ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,

		TAS2780_PWR_CTRL_MASK,

		mute ? TAS2780_PWR_CTRL_MUTE : 0);

	if (ret < 0) {

		dev_err(tas2780->dev, "%s: Failed to set powercontrol\n",

			__func__);

		goto err;

	}

	ret = 0;

err:

	return ret;

}



static int tas2780_set_bitwidth(struct tas2780_priv *tas2780, int bitwidth)

{

	struct snd_soc_component *component = tas2780->component;

	int sense_en;

	int val;

	int ret;

	int slot_size;



	switch (bitwidth) {

	case SNDRV_PCM_FORMAT_S16_LE:

		ret = snd_soc_component_update_bits(component,

			TAS2780_TDM_CFG2,

			TAS2780_TDM_CFG2_RXW_MASK,

			TAS2780_TDM_CFG2_RXW_16BITS);

		slot_size = TAS2780_TDM_CFG2_RXS_16BITS;

		break;

	case SNDRV_PCM_FORMAT_S24_LE:

		ret = snd_soc_component_update_bits(component,

			TAS2780_TDM_CFG2,

			TAS2780_TDM_CFG2_RXW_MASK,

			TAS2780_TDM_CFG2_RXW_24BITS);

		slot_size = TAS2780_TDM_CFG2_RXS_24BITS;

		break;

	case SNDRV_PCM_FORMAT_S32_LE:

		ret = snd_soc_component_update_bits(component,

			TAS2780_TDM_CFG2,

			TAS2780_TDM_CFG2_RXW_MASK,

			TAS2780_TDM_CFG2_RXW_32BITS);

		slot_size = TAS2780_TDM_CFG2_RXS_32BITS;

		break;



	default:

		ret = -EINVAL;

	}



	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%x set bitwidth error\n",

			__func__, ret);

		goto err;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,

		TAS2780_TDM_CFG2_RXS_MASK, slot_size);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x set RX slot size error\n",

			__func__, ret);

		goto err;

	}



	val = snd_soc_component_read(tas2780->component, TAS2780_PWR_CTRL);

	if (val < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%x read PWR_CTRL error\n",

			__func__, val);

		ret = val;

		goto err;

	}



	if (val & (1 << TAS2780_VSENSE_POWER_EN))

		sense_en = 0;

	else

		sense_en = TAS2780_TDM_CFG5_VSNS_ENABLE;



	ret = snd_soc_component_update_bits(tas2780->component,

		TAS2780_TDM_CFG5, TAS2780_TDM_CFG5_VSNS_ENABLE, sense_en);

	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%x enable vSNS error\n",

			__func__, ret);

		goto err;

	}



	if (val & (1 << TAS2780_ISENSE_POWER_EN))

		sense_en = 0;

	else

		sense_en = TAS2780_TDM_CFG6_ISNS_ENABLE;



	ret = snd_soc_component_update_bits(tas2780->component,

		TAS2780_TDM_CFG6, TAS2780_TDM_CFG6_ISNS_ENABLE, sense_en);

	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%x enable iSNS error\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

err:

	return ret;

}



static int tas2780_set_samplerate(

	struct tas2780_priv *tas2780, int samplerate)

{

	struct snd_soc_component *component = tas2780->component;

	int ramp_rate_val;

	int ret;



	switch (samplerate) {

	case 48000:

		ramp_rate_val = TAS2780_TDM_CFG0_SMP_48KHZ |

				TAS2780_TDM_CFG0_44_1_48KHZ;

		break;

	case 44100:

		ramp_rate_val = TAS2780_TDM_CFG0_SMP_44_1KHZ |

				TAS2780_TDM_CFG0_44_1_48KHZ;

		break;

	case 96000:

		ramp_rate_val = TAS2780_TDM_CFG0_SMP_48KHZ |

				TAS2780_TDM_CFG0_88_2_96KHZ;

		break;

	case 88200:

		ramp_rate_val = TAS2780_TDM_CFG0_SMP_44_1KHZ |

				TAS2780_TDM_CFG0_88_2_96KHZ;

		break;

	default:

		return -EINVAL;

	}

	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG0,

		TAS2780_TDM_CFG0_SMP_MASK | TAS2780_TDM_CFG0_MASK,

		ramp_rate_val);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set ramp_rate_val\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

err:

	return ret;

}



static int tas2780_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 tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int ret;



	ret = tas2780_set_bitwidth(tas2780, params_format(params));

	if (ret < 0)

		return ret;



	return tas2780_set_samplerate(tas2780, params_rate(params));

}



static int tas2780_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)

{

	struct snd_soc_component *component = dai->component;

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;

	int iface;

	int ret = 0;



	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {

	case SND_SOC_DAIFMT_NB_NF:

		asi_cfg_1 = TAS2780_TDM_CFG1_RX_RISING;

		break;

	case SND_SOC_DAIFMT_IB_NF:

		asi_cfg_1 = TAS2780_TDM_CFG1_RX_FALLING;

		break;

	default:

		dev_err(tas2780->dev, "ASI format Inverse is not found\n");

		return -EINVAL;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG1,

		TAS2780_TDM_CFG1_RX_MASK, asi_cfg_1);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set asi_cfg_1\n",

			__func__, ret);

		goto err;

	}



	if (((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S)

		|| ((fmt & SND_SOC_DAIFMT_FORMAT_MASK)

		== SND_SOC_DAIFMT_DSP_A)){

		iface = TAS2780_TDM_CFG2_SCFG_I2S;

		tdm_rx_start_slot = 1;

	} else {

		if (((fmt & SND_SOC_DAIFMT_FORMAT_MASK)

			== SND_SOC_DAIFMT_DSP_B)

			|| ((fmt & SND_SOC_DAIFMT_FORMAT_MASK)

			== SND_SOC_DAIFMT_LEFT_J)) {

			iface = TAS2780_TDM_CFG2_SCFG_LEFT_J;

			tdm_rx_start_slot = 0;

		} else {

			dev_err(tas2780->dev,

				"%s:DAI Format is not found, fmt=0x%x\n",

				__func__, fmt);

			ret = -EINVAL;

			goto err;

		}

	}

	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG1,

		TAS2780_TDM_CFG1_MASK,

		(tdm_rx_start_slot << TAS2780_TDM_CFG1_51_SHIFT));

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set tdm_rx_start_slot\n",

			__func__, ret);

		goto err;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,

		TAS2780_TDM_CFG2_SCFG_MASK, iface);

	if (ret < 0) {

		dev_err(tas2780->dev, "%s:errCode:0x%x Failed to set iface\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

err:

	return ret;

}



static int tas2780_set_dai_tdm_slot(struct snd_soc_dai *dai,

				unsigned int tx_mask,

				unsigned int rx_mask,

				int slots, int slot_width)

{

	struct snd_soc_component *component = dai->component;

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int left_slot, right_slot;

	int slots_cfg;

	int slot_size;

	int ret = 0;



	if (tx_mask == 0 || rx_mask != 0)

		return -EINVAL;



	if (slots == 1) {

		if (tx_mask != 1)

			return -EINVAL;

		left_slot = 0;

		right_slot = 0;

	} else {

		left_slot = __ffs(tx_mask);

		tx_mask &= ~(1 << left_slot);

		if (tx_mask == 0) {

			right_slot = left_slot;

		} else {

			right_slot = __ffs(tx_mask);

			tx_mask &= ~(1 << right_slot);

		}

	}



	if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)

		return -EINVAL;



	slots_cfg = (right_slot << TAS2780_TDM_CFG3_RXS_SHIFT) | left_slot;

	ret = snd_soc_component_write(component, TAS2780_TDM_CFG3, slots_cfg);

	if (ret) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set slots_cfg\n",

			__func__, ret);

		goto err;

	}



	switch (slot_width) {

	case 16:

		slot_size = TAS2780_TDM_CFG2_RXS_16BITS;

		break;

	case 24:

		slot_size = TAS2780_TDM_CFG2_RXS_24BITS;

		break;

	case 32:

		slot_size = TAS2780_TDM_CFG2_RXS_32BITS;

		break;

	default:

		ret = -EINVAL;

		goto err;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,

		TAS2780_TDM_CFG2_RXS_MASK, slot_size);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set slot_size\n",

			__func__, ret);

		goto err;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG5,

		TAS2780_TDM_CFG5_50_MASK, tas2780->v_sense_slot);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set v_sense_slot\n",

			__func__, ret);

		goto err;

	}



	ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG6,

		TAS2780_TDM_CFG6_50_MASK, tas2780->i_sense_slot);

	if (ret < 0) {

		dev_err(tas2780->dev,

			"%s:errCode:0x%x Failed to set i_sense_slot\n",

			__func__, ret);

		goto err;

	}

	ret = 0;

err:

	return ret;

}



static const struct snd_soc_dai_ops tas2780_dai_ops = {

	.mute_stream = tas2780_mute,

	.hw_params  = tas2780_hw_params,

	.set_fmt    = tas2780_set_fmt,

	.set_tdm_slot = tas2780_set_dai_tdm_slot,

	.no_capture_mute = 1,

};



#define TAS2780_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\

			 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)



#define TAS2780_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\

		       SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_88200)



static struct snd_soc_dai_driver tas2780_dai_driver[] = {

	{

		.name = "tas2780 ASI1",

		.id = 0,

		.playback = {

			.stream_name    = "ASI1 Playback",

			.channels_min   = 2,

			.channels_max   = 2,

			.rates      = TAS2780_RATES,

			.formats    = TAS2780_FORMATS,

		},

		.capture = {

			.stream_name    = "ASI1 Capture",

			.channels_min   = 1,

			.channels_max   = 2,

			.rates = TAS2780_RATES,

			.formats = TAS2780_FORMATS,

		},

		.ops = &tas2780_dai_ops,

		.symmetric_rate = 1,

	},

};



static int tas2780_codec_probe(struct snd_soc_component *component)

{

	struct tas2780_priv *tas2780 =

		snd_soc_component_get_drvdata(component);

	int ret = 0;



	tas2780->component = component;



	tas2780_reset(tas2780);

	ret = snd_soc_component_update_bits(component,

			TAS2780_IC_CFG, TAS2780_IC_CFG_MASK,

			TAS2780_IC_CFG_ENABLE);

	if (ret < 0)

		dev_err(tas2780->dev, "%s:errCode:0x%0x\n",

			__func__, ret);



	return ret;

}



static DECLARE_TLV_DB_SCALE(tas2780_digital_tlv, 1100, 50, 0);

static DECLARE_TLV_DB_SCALE(tas2780_playback_volume, -10000, 50, 0);



static const struct snd_kcontrol_new tas2780_snd_controls[] = {

	SOC_SINGLE_TLV("Speaker Volume", TAS2780_DVC, 0,

		       TAS2780_DVC_MAX, 1, tas2780_playback_volume),

	SOC_SINGLE_TLV("Amp Gain Volume", TAS2780_CHNL_0, 0, 0x14, 0,

		       tas2780_digital_tlv),

};



static const struct snd_soc_component_driver soc_component_driver_tas2780 = {

	.probe			= tas2780_codec_probe,

#ifdef CONFIG_PM

	.suspend		= tas2780_codec_suspend,

	.resume			= tas2780_codec_resume,

#endif

	.controls		= tas2780_snd_controls,

	.num_controls		= ARRAY_SIZE(tas2780_snd_controls),

	.dapm_widgets		= tas2780_dapm_widgets,

	.num_dapm_widgets	= ARRAY_SIZE(tas2780_dapm_widgets),

	.dapm_routes		= tas2780_audio_map,

	.num_dapm_routes	= ARRAY_SIZE(tas2780_audio_map),

	.idle_bias_on		= 1,

	.endianness		= 1,

};



static const struct reg_default tas2780_reg_defaults[] = {

	{ TAS2780_PAGE, 0x00 },

	{ TAS2780_SW_RST, 0x00 },

	{ TAS2780_PWR_CTRL, 0x1a },

	{ TAS2780_DVC, 0x00 },

	{ TAS2780_CHNL_0, 0x00 },

	{ TAS2780_TDM_CFG0, 0x09 },

	{ TAS2780_TDM_CFG1, 0x02 },

	{ TAS2780_TDM_CFG2, 0x0a },

	{ TAS2780_TDM_CFG3, 0x10 },

	{ TAS2780_TDM_CFG5, 0x42 },

};



static const struct regmap_range_cfg tas2780_regmap_ranges[] = {

	{

		.range_min = 0,

		.range_max = 1 * 128,

		.selector_reg = TAS2780_PAGE,

		.selector_mask = 0xff,

		.selector_shift = 0,

		.window_start = 0,

		.window_len = 128,

	},

};



static const struct regmap_config tas2780_i2c_regmap = {

	.reg_bits = 8,

	.val_bits = 8,

	.reg_defaults = tas2780_reg_defaults,

	.num_reg_defaults = ARRAY_SIZE(tas2780_reg_defaults),

	.cache_type = REGCACHE_RBTREE,

	.ranges = tas2780_regmap_ranges,

	.num_ranges = ARRAY_SIZE(tas2780_regmap_ranges),

	.max_register = 1 * 128,

};



static int tas2780_parse_dt(struct device *dev, struct tas2780_priv *tas2780)

{

	int ret = 0;



	tas2780->reset_gpio = devm_gpiod_get_optional(tas2780->dev, "reset",

		GPIOD_OUT_HIGH);

	if (IS_ERR(tas2780->reset_gpio)) {

		if (PTR_ERR(tas2780->reset_gpio) == -EPROBE_DEFER) {

			tas2780->reset_gpio = NULL;

			return -EPROBE_DEFER;

		}

	}



	ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",

		&tas2780->i_sense_slot);

	if (ret)

		tas2780->i_sense_slot = 0;



	ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",

		&tas2780->v_sense_slot);

	if (ret)

		tas2780->v_sense_slot = 2;



	return 0;

}



static int tas2780_i2c_probe(struct i2c_client *client,

			const struct i2c_device_id *id)

{

	struct tas2780_priv *tas2780;

	int result;



	tas2780 = devm_kzalloc(&client->dev, sizeof(struct tas2780_priv),

		GFP_KERNEL);

	if (!tas2780)

		return -ENOMEM;

	tas2780->dev = &client->dev;

	i2c_set_clientdata(client, tas2780);

	dev_set_drvdata(&client->dev, tas2780);



	tas2780->regmap = devm_regmap_init_i2c(client, &tas2780_i2c_regmap);

	if (IS_ERR(tas2780->regmap)) {

		result = PTR_ERR(tas2780->regmap);

		dev_err(&client->dev, "Failed to allocate register map: %d\n",

			result);

		return result;

	}



	if (client->dev.of_node) {

		result = tas2780_parse_dt(&client->dev, tas2780);

		if (result) {

			dev_err(tas2780->dev,

				"%s: Failed to parse devicetree\n", __func__);

			return result;

		}

	}



	return devm_snd_soc_register_component(tas2780->dev,

		&soc_component_driver_tas2780, tas2780_dai_driver,

		ARRAY_SIZE(tas2780_dai_driver));

}



static const struct i2c_device_id tas2780_i2c_id[] = {

	{ "tas2780", 0},

	{ }

};

MODULE_DEVICE_TABLE(i2c, tas2780_i2c_id);



#if defined(CONFIG_OF)

static const struct of_device_id tas2780_of_match[] = {

	{ .compatible = "ti,tas2780" },

	{},

};

MODULE_DEVICE_TABLE(of, tas2780_of_match);

#endif



static struct i2c_driver tas2780_i2c_driver = {

	.driver = {

		.name   = "tas2780",

		.of_match_table = of_match_ptr(tas2780_of_match),

	},

	.probe  = tas2780_i2c_probe,

	.id_table   = tas2780_i2c_id,

};

module_i2c_driver(tas2780_i2c_driver);



MODULE_AUTHOR("Raphael Xu <raphael-xu@ti.com>");

MODULE_DESCRIPTION("TAS2780 I2C Smart Amplifier driver");

MODULE_LICENSE("GPL");

sound/soc/codecs/tas2780.h

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Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * TAS2780.h - ALSA SoC Texas Instruments TAS2780 Mono Audio Amplifier

 *

 * Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com

 *

 * Author: Raphael Xu <raphael-xu@ti.com>

 */



#ifndef __TAS2780_H__

#define __TAS2780_H__



/* Book Control Register */

#define TAS2780_BOOKCTL_PAGE	0

#define TAS2780_BOOKCTL_REG	127

#define TAS2780_REG(page, reg)	((page * 128) + reg)



/* Page */

#define TAS2780_PAGE		TAS2780_REG(0X0, 0x00)

#define TAS2780_PAGE_PAGE_MASK	255



/* Software Reset */

#define TAS2780_SW_RST	TAS2780_REG(0X0, 0x01)

#define TAS2780_RST	BIT(0)



/* Power Control */

#define TAS2780_PWR_CTRL		TAS2780_REG(0X0, 0x02)

#define TAS2780_PWR_CTRL_MASK		GENMASK(1, 0)

#define TAS2780_PWR_CTRL_ACTIVE		0x0

#define TAS2780_PWR_CTRL_MUTE		BIT(0)

#define TAS2780_PWR_CTRL_SHUTDOWN	BIT(1)



#define TAS2780_VSENSE_POWER_EN		3

#define TAS2780_ISENSE_POWER_EN		4



/* Digital Volume Control */

#define TAS2780_DVC	TAS2780_REG(0X0, 0x1a)

#define TAS2780_DVC_MAX	0xc9



#define TAS2780_CHNL_0  TAS2780_REG(0X0, 0x03)



/* TDM Configuration Reg0 */

#define TAS2780_TDM_CFG0		TAS2780_REG(0X0, 0x08)

#define TAS2780_TDM_CFG0_SMP_MASK	BIT(5)

#define TAS2780_TDM_CFG0_SMP_48KHZ	0x0

#define TAS2780_TDM_CFG0_SMP_44_1KHZ	BIT(5)

#define TAS2780_TDM_CFG0_MASK		GENMASK(3, 1)

#define TAS2780_TDM_CFG0_44_1_48KHZ	BIT(3)

#define TAS2780_TDM_CFG0_88_2_96KHZ	(BIT(3) | BIT(1))



/* TDM Configuration Reg1 */

#define TAS2780_TDM_CFG1		TAS2780_REG(0X0, 0x09)

#define TAS2780_TDM_CFG1_MASK		GENMASK(5, 1)

#define TAS2780_TDM_CFG1_51_SHIFT	1

#define TAS2780_TDM_CFG1_RX_MASK	BIT(0)

#define TAS2780_TDM_CFG1_RX_RISING	0x0

#define TAS2780_TDM_CFG1_RX_FALLING	BIT(0)



/* TDM Configuration Reg2 */

#define TAS2780_TDM_CFG2		TAS2780_REG(0X0, 0x0a)

#define TAS2780_TDM_CFG2_RXW_MASK	GENMASK(3, 2)

#define TAS2780_TDM_CFG2_RXW_16BITS	0x0

#define TAS2780_TDM_CFG2_RXW_24BITS	BIT(3)

#define TAS2780_TDM_CFG2_RXW_32BITS	(BIT(3) | BIT(2))

#define TAS2780_TDM_CFG2_RXS_MASK	GENMASK(1, 0)

#define TAS2780_TDM_CFG2_RXS_16BITS	0x0

#define TAS2780_TDM_CFG2_RXS_24BITS	BIT(0)

#define TAS2780_TDM_CFG2_RXS_32BITS	BIT(1)

#define TAS2780_TDM_CFG2_SCFG_MASK	GENMASK(5, 4)

#define TAS2780_TDM_CFG2_SCFG_I2S	0x0

#define TAS2780_TDM_CFG2_SCFG_LEFT_J	BIT(4)

#define TAS2780_TDM_CFG2_SCFG_RIGHT_J	BIT(5)



/* TDM Configuration Reg3 */

#define TAS2780_TDM_CFG3		TAS2780_REG(0X0, 0x0c)

#define TAS2780_TDM_CFG3_RXS_MASK	GENMASK(7, 4)

#define TAS2780_TDM_CFG3_RXS_SHIFT	0x4

#define TAS2780_TDM_CFG3_MASK		GENMASK(3, 0)



/* TDM Configuration Reg4 */

#define TAS2780_TDM_CFG4		TAS2780_REG(0X0, 0x0d)

#define TAS2780_TDM_CFG4_TX_OFFSET_MASK	GENMASK(3, 1)



/* TDM Configuration Reg5 */

#define TAS2780_TDM_CFG5		TAS2780_REG(0X0, 0x0e)

#define TAS2780_TDM_CFG5_VSNS_MASK	BIT(6)

#define TAS2780_TDM_CFG5_VSNS_ENABLE	BIT(6)

#define TAS2780_TDM_CFG5_50_MASK	GENMASK(5, 0)



/* TDM Configuration Reg6 */

#define TAS2780_TDM_CFG6		TAS2780_REG(0X0, 0x0f)

#define TAS2780_TDM_CFG6_ISNS_MASK	BIT(6)

#define TAS2780_TDM_CFG6_ISNS_ENABLE	BIT(6)

#define TAS2780_TDM_CFG6_50_MASK	GENMASK(5, 0)



/* IC CFG */

#define TAS2780_IC_CFG			TAS2780_REG(0X0, 0x5c)

#define TAS2780_IC_CFG_MASK		GENMASK(7, 6)

#define TAS2780_IC_CFG_ENABLE		(BIT(7) | BIT(6))



#endif /* __TAS2780_H__ */