[mirror_ubuntu-hirsute-kernel.git] / sound / soc / codecs / max9867.c

// SPDX-License-Identifier: GPL-2.0
//
// MAX9867 ALSA SoC codec driver
//
// Copyright 2013-2015 Maxim Integrated Products
// Copyright 2018 Ladislav Michl <ladis@linux-mips.org>
//

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "max9867.h"

static const char *const max9867_spmode[] = {
	"Stereo Diff", "Mono Diff",
	"Stereo Cap", "Mono Cap",
	"Stereo Single", "Mono Single",
	"Stereo Single Fast", "Mono Single Fast"
};
static const char *const max9867_filter_text[] = {"IIR", "FIR"};

static const char *const max9867_adc_dac_filter_text[] = {
	"Disabled",
	"Elliptical/16/256",
	"Butterworth/16/500",
	"Elliptical/8/256",
	"Butterworth/8/500",
	"Butterworth/8-24"
};

static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
	max9867_filter_text);
static SOC_ENUM_SINGLE_DECL(max9867_dac_filter, MAX9867_CODECFLTR, 0,
	max9867_adc_dac_filter_text);
static SOC_ENUM_SINGLE_DECL(max9867_adc_filter, MAX9867_CODECFLTR, 4,
	max9867_adc_dac_filter_text);
static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
	max9867_spmode);
static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_master_tlv,
	 0,  2, TLV_DB_SCALE_ITEM(-8600, 200, 1),
	 3, 17, TLV_DB_SCALE_ITEM(-7800, 400, 0),
	18, 25, TLV_DB_SCALE_ITEM(-2000, 200, 0),
	26, 34, TLV_DB_SCALE_ITEM( -500, 100, 0),
	35, 40, TLV_DB_SCALE_ITEM(  350,  50, 0),
);
static DECLARE_TLV_DB_SCALE(max9867_mic_tlv, 0, 100, 0);
static DECLARE_TLV_DB_SCALE(max9867_line_tlv, -600, 200, 0);
static DECLARE_TLV_DB_SCALE(max9867_adc_tlv, -1200, 100, 0);
static DECLARE_TLV_DB_SCALE(max9867_dac_tlv, -1500, 100, 0);
static DECLARE_TLV_DB_SCALE(max9867_dacboost_tlv, 0, 600, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_micboost_tlv,
	0, 2, TLV_DB_SCALE_ITEM(-2000, 2000, 1),
	3, 3, TLV_DB_SCALE_ITEM(3000, 0, 0),
);

static const struct snd_kcontrol_new max9867_snd_controls[] = {
	SOC_DOUBLE_R_TLV("Master Playback Volume", MAX9867_LEFTVOL,
			MAX9867_RIGHTVOL, 0, 40, 1, max9867_master_tlv),
	SOC_DOUBLE_R_TLV("Line Capture Volume", MAX9867_LEFTLINELVL,
			MAX9867_RIGHTLINELVL, 0, 15, 1, max9867_line_tlv),
	SOC_DOUBLE_R_TLV("Mic Capture Volume", MAX9867_LEFTMICGAIN,
			MAX9867_RIGHTMICGAIN, 0, 20, 1, max9867_mic_tlv),
	SOC_DOUBLE_R_TLV("Mic Boost Capture Volume", MAX9867_LEFTMICGAIN,
			MAX9867_RIGHTMICGAIN, 5, 3, 0, max9867_micboost_tlv),
	SOC_SINGLE("Digital Sidetone Volume", MAX9867_SIDETONE, 0, 31, 1),
	SOC_SINGLE_TLV("Digital Playback Volume", MAX9867_DACLEVEL, 0, 15, 1,
			max9867_dac_tlv),
	SOC_SINGLE_TLV("Digital Boost Playback Volume", MAX9867_DACLEVEL, 4, 3, 0,
			max9867_dacboost_tlv),
	SOC_DOUBLE_TLV("Digital Capture Volume", MAX9867_ADCLEVEL, 4, 0, 15, 1,
			max9867_adc_tlv),
	SOC_ENUM("Speaker Mode", max9867_spkmode),
	SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
	SOC_SINGLE("Line ZC Switch", MAX9867_MODECONFIG, 5, 1, 0),
	SOC_ENUM("DSP Filter", max9867_filter),
	SOC_ENUM("ADC Filter", max9867_adc_filter),
	SOC_ENUM("DAC Filter", max9867_dac_filter),
	SOC_SINGLE("Mono Playback Switch", MAX9867_IFC1B, 3, 1, 0),
};

/* Input mixer */
static const struct snd_kcontrol_new max9867_input_mixer_controls[] = {
	SOC_DAPM_DOUBLE("Line Capture Switch", MAX9867_INPUTCONFIG, 7, 5, 1, 0),
	SOC_DAPM_DOUBLE("Mic Capture Switch", MAX9867_INPUTCONFIG, 6, 4, 1, 0),
};

/* Output mixer */
static const struct snd_kcontrol_new max9867_output_mixer_controls[] = {
	SOC_DAPM_DOUBLE_R("Line Bypass Switch",
			  MAX9867_LEFTLINELVL, MAX9867_RIGHTLINELVL, 6, 1, 1),
};

/* Sidetone mixer */
static const struct snd_kcontrol_new max9867_sidetone_mixer_controls[] = {
	SOC_DAPM_DOUBLE("Sidetone Switch", MAX9867_SIDETONE, 6, 7, 1, 0),
};

/* Line out switch */
static const struct snd_kcontrol_new max9867_line_out_control =
	SOC_DAPM_DOUBLE_R("Switch",
			  MAX9867_LEFTVOL, MAX9867_RIGHTVOL, 6, 1, 1);

/* DMIC mux */
static const char *const dmic_mux_text[] = {
	"ADC", "DMIC"
};
static SOC_ENUM_SINGLE_DECL(left_dmic_mux_enum,
			    MAX9867_MICCONFIG, 5, dmic_mux_text);
static SOC_ENUM_SINGLE_DECL(right_dmic_mux_enum,
			    MAX9867_MICCONFIG, 4, dmic_mux_text);
static const struct snd_kcontrol_new max9867_left_dmic_mux =
	SOC_DAPM_ENUM("DMICL Mux", left_dmic_mux_enum);
static const struct snd_kcontrol_new max9867_right_dmic_mux =
	SOC_DAPM_ENUM("DMICR Mux", right_dmic_mux_enum);

static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
	SND_SOC_DAPM_INPUT("MICL"),
	SND_SOC_DAPM_INPUT("MICR"),
	SND_SOC_DAPM_INPUT("DMICL"),
	SND_SOC_DAPM_INPUT("DMICR"),
	SND_SOC_DAPM_INPUT("LINL"),
	SND_SOC_DAPM_INPUT("LINR"),

	SND_SOC_DAPM_PGA("Left Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Right Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
				     max9867_input_mixer_controls,
				     ARRAY_SIZE(max9867_input_mixer_controls)),
	SND_SOC_DAPM_MUX("DMICL Mux", SND_SOC_NOPM, 0, 0,
			 &max9867_left_dmic_mux),
	SND_SOC_DAPM_MUX("DMICR Mux", SND_SOC_NOPM, 0, 0,
			 &max9867_right_dmic_mux),
	SND_SOC_DAPM_ADC("ADCL", "HiFi Capture", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_ADC("ADCR", "HiFi Capture", SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_MIXER("Digital", SND_SOC_NOPM, 0, 0,
			   max9867_sidetone_mixer_controls,
			   ARRAY_SIZE(max9867_sidetone_mixer_controls)),
	SND_SOC_DAPM_MIXER_NAMED_CTL("Output Mixer", SND_SOC_NOPM, 0, 0,
				     max9867_output_mixer_controls,
				     ARRAY_SIZE(max9867_output_mixer_controls)),
	SND_SOC_DAPM_DAC("DACL", "HiFi Playback", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC("DACR", "HiFi Playback", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_SWITCH("Master Playback", SND_SOC_NOPM, 0, 0,
			    &max9867_line_out_control),
	SND_SOC_DAPM_OUTPUT("LOUT"),
	SND_SOC_DAPM_OUTPUT("ROUT"),
};

static const struct snd_soc_dapm_route max9867_audio_map[] = {
	{"Left Line Input", NULL, "LINL"},
	{"Right Line Input", NULL, "LINR"},
	{"Input Mixer", "Mic Capture Switch", "MICL"},
	{"Input Mixer", "Mic Capture Switch", "MICR"},
	{"Input Mixer", "Line Capture Switch", "Left Line Input"},
	{"Input Mixer", "Line Capture Switch", "Right Line Input"},
	{"DMICL Mux", "DMIC", "DMICL"},
	{"DMICR Mux", "DMIC", "DMICR"},
	{"DMICL Mux", "ADC", "Input Mixer"},
	{"DMICR Mux", "ADC", "Input Mixer"},
	{"ADCL", NULL, "DMICL Mux"},
	{"ADCR", NULL, "DMICR Mux"},

	{"Digital", "Sidetone Switch", "ADCL"},
	{"Digital", "Sidetone Switch", "ADCR"},
	{"DACL", NULL, "Digital"},
	{"DACR", NULL, "Digital"},

	{"Output Mixer", "Line Bypass Switch", "Left Line Input"},
	{"Output Mixer", "Line Bypass Switch", "Right Line Input"},
	{"Output Mixer", NULL, "DACL"},
	{"Output Mixer", NULL, "DACR"},
	{"Master Playback", "Switch", "Output Mixer"},
	{"LOUT", NULL, "Master Playback"},
	{"ROUT", NULL, "Master Playback"},
};

static const unsigned int max9867_rates_44k1[] = {
	11025, 22050, 44100,
};

static const struct snd_pcm_hw_constraint_list max9867_constraints_44k1 = {
	.list = max9867_rates_44k1,
	.count = ARRAY_SIZE(max9867_rates_44k1),
};

static const unsigned int max9867_rates_48k[] = {
	8000, 16000, 32000, 48000,
};

static const struct snd_pcm_hw_constraint_list max9867_constraints_48k = {
	.list = max9867_rates_48k,
	.count = ARRAY_SIZE(max9867_rates_48k),
};

struct max9867_priv {
	struct regmap *regmap;
	const struct snd_pcm_hw_constraint_list *constraints;
	unsigned int sysclk, pclk;
	bool master, dsp_a;
};

static int max9867_startup(struct snd_pcm_substream *substream,
			   struct snd_soc_dai *dai)
{
        struct max9867_priv *max9867 =
		snd_soc_component_get_drvdata(dai->component);

	if (max9867->constraints)
		snd_pcm_hw_constraint_list(substream->runtime, 0,
			SNDRV_PCM_HW_PARAM_RATE, max9867->constraints);

	return 0;
}

static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
	int value;
	unsigned long int rate, ratio;
	struct snd_soc_component *component = dai->component;
	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
	unsigned int ni = DIV_ROUND_CLOSEST_ULL(96ULL * 0x10000 * params_rate(params),
						max9867->pclk);

	/* set up the ni value */
	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
		MAX9867_NI_HIGH_MASK, (0xFF00 & ni) >> 8);
	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
		MAX9867_NI_LOW_MASK, 0x00FF & ni);
	if (max9867->master) {
		if (max9867->dsp_a) {
			value = MAX9867_IFC1B_48X;
		} else {
			rate = params_rate(params) * 2 * params_width(params);
			ratio = max9867->pclk / rate;
			switch (params_width(params)) {
			case 8:
			case 16:
				switch (ratio) {
				case 2:
					value = MAX9867_IFC1B_PCLK_2;
					break;
				case 4:
					value = MAX9867_IFC1B_PCLK_4;
					break;
				case 8:
					value = MAX9867_IFC1B_PCLK_8;
					break;
				case 16:
					value = MAX9867_IFC1B_PCLK_16;
					break;
				default:
					return -EINVAL;
				}
				break;
			case 24:
				value = MAX9867_IFC1B_48X;
				break;
			case 32:
				value = MAX9867_IFC1B_64X;
				break;
			default:
				return -EINVAL;
			}
		}
		regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
			MAX9867_IFC1B_BCLK_MASK, value);
	} else {
		/*
		 * digital pll locks on to any externally supplied LRCLK signal
		 * and also enable rapid lock mode.
		 */
		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
			MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
			MAX9867_PLL, MAX9867_PLL);
	}
	return 0;
}

static int max9867_mute(struct snd_soc_dai *dai, int mute, int direction)
{
	struct snd_soc_component *component = dai->component;
	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);

	return regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
				  1 << 6, !!mute << 6);
}

static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_component *component = codec_dai->component;
	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
	int value = 0;

	/* Set the prescaler based on the master clock frequency*/
	if (freq >= 10000000 && freq <= 20000000) {
		value |= MAX9867_PSCLK_10_20;
		max9867->pclk = freq;
	} else if (freq >= 20000000 && freq <= 40000000) {
		value |= MAX9867_PSCLK_20_40;
		max9867->pclk = freq / 2;
	} else if (freq >= 40000000 && freq <= 60000000) {
		value |= MAX9867_PSCLK_40_60;
		max9867->pclk = freq / 4;
	} else {
		dev_err(component->dev,
			"Invalid clock frequency %uHz (required 10-60MHz)\n",
			freq);
		return -EINVAL;
	}
	if (freq % 48000 == 0)
		max9867->constraints = &max9867_constraints_48k;
	else if (freq % 44100 == 0)
		max9867->constraints = &max9867_constraints_44k1;
	else
		dev_warn(component->dev,
			 "Unable to set exact rate with %uHz clock frequency\n",
			 freq);
	max9867->sysclk = freq;
	value = value << MAX9867_PSCLK_SHIFT;
	/* exact integer mode is not supported */
	value &= ~MAX9867_FREQ_MASK;
	regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
			MAX9867_PSCLK_MASK, value);
	return 0;
}

static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_component *component = codec_dai->component;
	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
	u8 iface1A, iface1B;

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		max9867->master = true;
		iface1A = MAX9867_MASTER;
		iface1B = MAX9867_IFC1B_48X;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		max9867->master = false;
		iface1A = iface1B = 0;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		max9867->dsp_a = false;
		iface1A |= MAX9867_I2S_DLY;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		max9867->dsp_a = true;
		iface1A |= MAX9867_TDM_MODE | MAX9867_SDOUT_HIZ;
		break;
	default:
		return -EINVAL;
	}

	/* Clock inversion bits, BCI and WCI */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_IF:
		iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		iface1A |= MAX9867_BCI_MODE;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		iface1A |= MAX9867_WCI_MODE;
		break;
	default:
		return -EINVAL;
	}

	regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
	regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
			   MAX9867_IFC1B_BCLK_MASK, iface1B);

	return 0;
}

static const struct snd_soc_dai_ops max9867_dai_ops = {
	.set_sysclk	= max9867_set_dai_sysclk,
	.set_fmt	= max9867_dai_set_fmt,
	.mute_stream	= max9867_mute,
	.startup	= max9867_startup,
	.hw_params	= max9867_dai_hw_params,
	.no_capture_mute = 1,
};

static struct snd_soc_dai_driver max9867_dai[] = {
	{
	.name = "max9867-aif1",
	.playback = {
		.stream_name = "HiFi Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.capture = {
		.stream_name = "HiFi Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.ops = &max9867_dai_ops,
	.symmetric_rates = 1,
	}
};

#ifdef CONFIG_PM
static int max9867_suspend(struct snd_soc_component *component)
{
	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);

	return 0;
}

static int max9867_resume(struct snd_soc_component *component)
{
	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);

	return 0;
}
#else
#define max9867_suspend	NULL
#define max9867_resume	NULL
#endif

static int max9867_set_bias_level(struct snd_soc_component *component,
				  enum snd_soc_bias_level level)
{
	int err;
	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
			err = regcache_sync(max9867->regmap);
			if (err)
				return err;

			err = regmap_write(max9867->regmap,
					   MAX9867_PWRMAN, 0xff);
			if (err)
				return err;
		}
		break;
	case SND_SOC_BIAS_OFF:
		err = regmap_write(max9867->regmap, MAX9867_PWRMAN, 0);
		if (err)
			return err;

		regcache_mark_dirty(max9867->regmap);
		break;
	default:
		break;
	}

	return 0;
}

static const struct snd_soc_component_driver max9867_component = {
	.controls		= max9867_snd_controls,
	.num_controls		= ARRAY_SIZE(max9867_snd_controls),
	.dapm_routes		= max9867_audio_map,
	.num_dapm_routes	= ARRAY_SIZE(max9867_audio_map),
	.dapm_widgets		= max9867_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(max9867_dapm_widgets),
	.suspend		= max9867_suspend,
	.resume			= max9867_resume,
	.set_bias_level		= max9867_set_bias_level,
	.idle_bias_on		= 1,
	.use_pmdown_time	= 1,
	.endianness		= 1,
	.non_legacy_dai_naming	= 1,
};

static bool max9867_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case MAX9867_STATUS:
	case MAX9867_JACKSTATUS:
	case MAX9867_AUXHIGH:
	case MAX9867_AUXLOW:
		return true;
	default:
		return false;
	}
}

static const struct regmap_config max9867_regmap = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.max_register	= MAX9867_REVISION,
	.volatile_reg	= max9867_volatile_register,
	.cache_type	= REGCACHE_RBTREE,
};

static int max9867_i2c_probe(struct i2c_client *i2c,
		const struct i2c_device_id *id)
{
	struct max9867_priv *max9867;
	int ret, reg;

	max9867 = devm_kzalloc(&i2c->dev, sizeof(*max9867), GFP_KERNEL);
	if (!max9867)
		return -ENOMEM;

	i2c_set_clientdata(i2c, max9867);
	max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
	if (IS_ERR(max9867->regmap)) {
		ret = PTR_ERR(max9867->regmap);
		dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
		return ret;
	}
	ret = regmap_read(max9867->regmap, MAX9867_REVISION, &reg);
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to read: %d\n", ret);
		return ret;
	}
	dev_info(&i2c->dev, "device revision: %x\n", reg);
	ret = devm_snd_soc_register_component(&i2c->dev, &max9867_component,
			max9867_dai, ARRAY_SIZE(max9867_dai));
	if (ret < 0)
		dev_err(&i2c->dev, "Failed to register component: %d\n", ret);
	return ret;
}

static const struct i2c_device_id max9867_i2c_id[] = {
	{ "max9867", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);

static const struct of_device_id max9867_of_match[] = {
	{ .compatible = "maxim,max9867", },
	{ }
};
MODULE_DEVICE_TABLE(of, max9867_of_match);

static struct i2c_driver max9867_i2c_driver = {
	.driver = {
		.name = "max9867",
		.of_match_table = of_match_ptr(max9867_of_match),
	},
	.probe  = max9867_i2c_probe,
	.id_table = max9867_i2c_id,
};

module_i2c_driver(max9867_i2c_driver);

MODULE_AUTHOR("Ladislav Michl <ladis@linux-mips.org>");
MODULE_DESCRIPTION("ASoC MAX9867 driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
8084945d LM	1	// SPDX-License-Identifier: GPL-2.0
	2	//
	3	// MAX9867 ALSA SoC codec driver
	4	//
	5	// Copyright 2013-2015 Maxim Integrated Products
	6	// Copyright 2018 Ladislav Michl <ladis@linux-mips.org>
	7	//
805d132d	8
	9	#include <linux/delay.h>
	10	#include <linux/i2c.h>
	11	#include <linux/module.h>
	12	#include <linux/regmap.h>
	13	#include <sound/pcm_params.h>
	14	#include <sound/soc.h>
	15	#include <sound/tlv.h>
	16	#include "max9867.h"
	17
	18	static const char *const max9867_spmode[] = {
	19	"Stereo Diff", "Mono Diff",
	20	"Stereo Cap", "Mono Cap",
	21	"Stereo Single", "Mono Single",
	22	"Stereo Single Fast", "Mono Single Fast"
	23	};
805d132d	24	static const char *const max9867_filter_text[] = {"IIR", "FIR"};
805d132d	25
af53d573 PD	26	static const char *const max9867_adc_dac_filter_text[] = {
	27	"Disabled",
	28	"Elliptical/16/256",
	29	"Butterworth/16/500",
	30	"Elliptical/8/256",
	31	"Butterworth/8/500",
	32	"Butterworth/8-24"
	33	};
	34
805d132d	35	static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
805d132d	36	max9867_filter_text);
af53d573 PD	37	static SOC_ENUM_SINGLE_DECL(max9867_dac_filter, MAX9867_CODECFLTR, 0,
	38	max9867_adc_dac_filter_text);
	39	static SOC_ENUM_SINGLE_DECL(max9867_adc_filter, MAX9867_CODECFLTR, 4,
	40	max9867_adc_dac_filter_text);
805d132d	41	static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
805d132d	42	max9867_spmode);
bc2610a6 LM	43	static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_master_tlv,
	44	0, 2, TLV_DB_SCALE_ITEM(-8600, 200, 1),
	45	3, 17, TLV_DB_SCALE_ITEM(-7800, 400, 0),
	46	18, 25, TLV_DB_SCALE_ITEM(-2000, 200, 0),
	47	26, 34, TLV_DB_SCALE_ITEM( -500, 100, 0),
	48	35, 40, TLV_DB_SCALE_ITEM( 350, 50, 0),
	49	);
	50	static DECLARE_TLV_DB_SCALE(max9867_mic_tlv, 0, 100, 0);
	51	static DECLARE_TLV_DB_SCALE(max9867_line_tlv, -600, 200, 0);
	52	static DECLARE_TLV_DB_SCALE(max9867_adc_tlv, -1200, 100, 0);
	53	static DECLARE_TLV_DB_SCALE(max9867_dac_tlv, -1500, 100, 0);
	54	static DECLARE_TLV_DB_SCALE(max9867_dacboost_tlv, 0, 600, 0);
	55	static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_micboost_tlv,
	56	0, 2, TLV_DB_SCALE_ITEM(-2000, 2000, 1),
	57	3, 3, TLV_DB_SCALE_ITEM(3000, 0, 0),
349fa18c	58	);
805d132d	59
805d132d	60	static const struct snd_kcontrol_new max9867_snd_controls[] = {
bc2610a6	61	SOC_DOUBLE_R_TLV("Master Playback Volume", MAX9867_LEFTVOL,
8ba4dc3c	62	MAX9867_RIGHTVOL, 0, 40, 1, max9867_master_tlv),
bc2610a6 LM	63	SOC_DOUBLE_R_TLV("Line Capture Volume", MAX9867_LEFTLINELVL,
	64	MAX9867_RIGHTLINELVL, 0, 15, 1, max9867_line_tlv),
	65	SOC_DOUBLE_R_TLV("Mic Capture Volume", MAX9867_LEFTMICGAIN,
	66	MAX9867_RIGHTMICGAIN, 0, 20, 1, max9867_mic_tlv),
	67	SOC_DOUBLE_R_TLV("Mic Boost Capture Volume", MAX9867_LEFTMICGAIN,
8ba4dc3c	68	MAX9867_RIGHTMICGAIN, 5, 3, 0, max9867_micboost_tlv),
bc2610a6 LM	69	SOC_SINGLE("Digital Sidetone Volume", MAX9867_SIDETONE, 0, 31, 1),
	70	SOC_SINGLE_TLV("Digital Playback Volume", MAX9867_DACLEVEL, 0, 15, 1,
	71	max9867_dac_tlv),
	72	SOC_SINGLE_TLV("Digital Boost Playback Volume", MAX9867_DACLEVEL, 4, 3, 0,
	73	max9867_dacboost_tlv),
53a58bf9	74	SOC_DOUBLE_TLV("Digital Capture Volume", MAX9867_ADCLEVEL, 4, 0, 15, 1,
bc2610a6	75	max9867_adc_tlv),
805d132d	76	SOC_ENUM("Speaker Mode", max9867_spkmode),
805d132d	77	SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
bc2610a6	78	SOC_SINGLE("Line ZC Switch", MAX9867_MODECONFIG, 5, 1, 0),
805d132d	79	SOC_ENUM("DSP Filter", max9867_filter),
af53d573 PD	80	SOC_ENUM("ADC Filter", max9867_adc_filter),
af53d573 PD	81	SOC_ENUM("DAC Filter", max9867_dac_filter),
80b9fa4d	82	SOC_SINGLE("Mono Playback Switch", MAX9867_IFC1B, 3, 1, 0),
805d132d	83	};
805d132d	84
bc2610a6 LM	85	/* Input mixer */
	86	static const struct snd_kcontrol_new max9867_input_mixer_controls[] = {
	87	SOC_DAPM_DOUBLE("Line Capture Switch", MAX9867_INPUTCONFIG, 7, 5, 1, 0),
	88	SOC_DAPM_DOUBLE("Mic Capture Switch", MAX9867_INPUTCONFIG, 6, 4, 1, 0),
	89	};
	90
	91	/* Output mixer */
	92	static const struct snd_kcontrol_new max9867_output_mixer_controls[] = {
	93	SOC_DAPM_DOUBLE_R("Line Bypass Switch",
	94	MAX9867_LEFTLINELVL, MAX9867_RIGHTLINELVL, 6, 1, 1),
	95	};
805d132d	96
bc2610a6 LM	97	/* Sidetone mixer */
	98	static const struct snd_kcontrol_new max9867_sidetone_mixer_controls[] = {
	99	SOC_DAPM_DOUBLE("Sidetone Switch", MAX9867_SIDETONE, 6, 7, 1, 0),
	100	};
805d132d	101
bc2610a6 LM	102	/* Line out switch */
	103	static const struct snd_kcontrol_new max9867_line_out_control =
	104	SOC_DAPM_DOUBLE_R("Switch",
	105	MAX9867_LEFTVOL, MAX9867_RIGHTVOL, 6, 1, 1);
805d132d	106
980b63f8 PD	107	/* DMIC mux */
	108	static const char *const dmic_mux_text[] = {
	109	"ADC", "DMIC"
	110	};
	111	static SOC_ENUM_SINGLE_DECL(left_dmic_mux_enum,
	112	MAX9867_MICCONFIG, 5, dmic_mux_text);
	113	static SOC_ENUM_SINGLE_DECL(right_dmic_mux_enum,
	114	MAX9867_MICCONFIG, 4, dmic_mux_text);
	115	static const struct snd_kcontrol_new max9867_left_dmic_mux =
	116	SOC_DAPM_ENUM("DMICL Mux", left_dmic_mux_enum);
	117	static const struct snd_kcontrol_new max9867_right_dmic_mux =
	118	SOC_DAPM_ENUM("DMICR Mux", right_dmic_mux_enum);
805d132d	119
805d132d	120	static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
bc2610a6 LM	121	SND_SOC_DAPM_INPUT("MICL"),
bc2610a6 LM	122	SND_SOC_DAPM_INPUT("MICR"),
980b63f8 PD	123	SND_SOC_DAPM_INPUT("DMICL"),
980b63f8 PD	124	SND_SOC_DAPM_INPUT("DMICR"),
bc2610a6 LM	125	SND_SOC_DAPM_INPUT("LINL"),
	126	SND_SOC_DAPM_INPUT("LINR"),
	127
29c859df PD	128	SND_SOC_DAPM_PGA("Left Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
29c859df PD	129	SND_SOC_DAPM_PGA("Right Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
bc2610a6 LM	130	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
	131	max9867_input_mixer_controls,
	132	ARRAY_SIZE(max9867_input_mixer_controls)),
980b63f8 PD	133	SND_SOC_DAPM_MUX("DMICL Mux", SND_SOC_NOPM, 0, 0,
	134	&max9867_left_dmic_mux),
	135	SND_SOC_DAPM_MUX("DMICR Mux", SND_SOC_NOPM, 0, 0,
	136	&max9867_right_dmic_mux),
29c859df PD	137	SND_SOC_DAPM_ADC("ADCL", "HiFi Capture", SND_SOC_NOPM, 0, 0),
29c859df PD	138	SND_SOC_DAPM_ADC("ADCR", "HiFi Capture", SND_SOC_NOPM, 0, 0),
bc2610a6 LM	139
	140	SND_SOC_DAPM_MIXER("Digital", SND_SOC_NOPM, 0, 0,
	141	max9867_sidetone_mixer_controls,
	142	ARRAY_SIZE(max9867_sidetone_mixer_controls)),
	143	SND_SOC_DAPM_MIXER_NAMED_CTL("Output Mixer", SND_SOC_NOPM, 0, 0,
	144	max9867_output_mixer_controls,
	145	ARRAY_SIZE(max9867_output_mixer_controls)),
29c859df PD	146	SND_SOC_DAPM_DAC("DACL", "HiFi Playback", SND_SOC_NOPM, 0, 0),
29c859df PD	147	SND_SOC_DAPM_DAC("DACR", "HiFi Playback", SND_SOC_NOPM, 0, 0),
bc2610a6 LM	148	SND_SOC_DAPM_SWITCH("Master Playback", SND_SOC_NOPM, 0, 0,
	149	&max9867_line_out_control),
	150	SND_SOC_DAPM_OUTPUT("LOUT"),
	151	SND_SOC_DAPM_OUTPUT("ROUT"),
805d132d	152	};
	153
	154	static const struct snd_soc_dapm_route max9867_audio_map[] = {
bc2610a6 LM	155	{"Left Line Input", NULL, "LINL"},
	156	{"Right Line Input", NULL, "LINR"},
	157	{"Input Mixer", "Mic Capture Switch", "MICL"},
	158	{"Input Mixer", "Mic Capture Switch", "MICR"},
	159	{"Input Mixer", "Line Capture Switch", "Left Line Input"},
	160	{"Input Mixer", "Line Capture Switch", "Right Line Input"},
980b63f8 PD	161	{"DMICL Mux", "DMIC", "DMICL"},
	162	{"DMICR Mux", "DMIC", "DMICR"},
	163	{"DMICL Mux", "ADC", "Input Mixer"},
	164	{"DMICR Mux", "ADC", "Input Mixer"},
	165	{"ADCL", NULL, "DMICL Mux"},
	166	{"ADCR", NULL, "DMICR Mux"},
bc2610a6 LM	167
	168	{"Digital", "Sidetone Switch", "ADCL"},
	169	{"Digital", "Sidetone Switch", "ADCR"},
	170	{"DACL", NULL, "Digital"},
	171	{"DACR", NULL, "Digital"},
	172
	173	{"Output Mixer", "Line Bypass Switch", "Left Line Input"},
	174	{"Output Mixer", "Line Bypass Switch", "Right Line Input"},
	175	{"Output Mixer", NULL, "DACL"},
	176	{"Output Mixer", NULL, "DACR"},
	177	{"Master Playback", "Switch", "Output Mixer"},
	178	{"LOUT", NULL, "Master Playback"},
	179	{"ROUT", NULL, "Master Playback"},
805d132d	180	};
805d132d	181
715ee191 LM	182	static const unsigned int max9867_rates_44k1[] = {
715ee191 LM	183	11025, 22050, 44100,
805d132d	184	};
805d132d	185
715ee191 LM	186	static const struct snd_pcm_hw_constraint_list max9867_constraints_44k1 = {
	187	.list = max9867_rates_44k1,
	188	.count = ARRAY_SIZE(max9867_rates_44k1),
805d132d	189	};
805d132d	190
715ee191 LM	191	static const unsigned int max9867_rates_48k[] = {
	192	8000, 16000, 32000, 48000,
	193	};
	194
	195	static const struct snd_pcm_hw_constraint_list max9867_constraints_48k = {
	196	.list = max9867_rates_48k,
	197	.count = ARRAY_SIZE(max9867_rates_48k),
	198	};
	199
	200	struct max9867_priv {
	201	struct regmap *regmap;
	202	const struct snd_pcm_hw_constraint_list *constraints;
	203	unsigned int sysclk, pclk;
	204	bool master, dsp_a;
	205	};
	206
	207	static int max9867_startup(struct snd_pcm_substream *substream,
	208	struct snd_soc_dai *dai)
805d132d	209	{
715ee191 LM	210	struct max9867_priv *max9867 =
715ee191 LM	211	snd_soc_component_get_drvdata(dai->component);
805d132d	212
715ee191 LM	213	if (max9867->constraints)
	214	snd_pcm_hw_constraint_list(substream->runtime, 0,
	215	SNDRV_PCM_HW_PARAM_RATE, max9867->constraints);
805d132d	216
715ee191	217	return 0;
805d132d	218	}
	219
	220	static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
	221	struct snd_pcm_hw_params params, struct snd_soc_dai dai)
	222	{
715ee191 LM	223	int value;
715ee191 LM	224	unsigned long int rate, ratio;
91880a6b KM	225	struct snd_soc_component *component = dai->component;
91880a6b KM	226	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
715ee191 LM	227	unsigned int ni = DIV_ROUND_CLOSEST_ULL(96ULL * 0x10000 * params_rate(params),
715ee191 LM	228	max9867->pclk);
805d132d	229
805d132d	230	/* set up the ni value */
805d132d	231	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
715ee191	232	MAX9867_NI_HIGH_MASK, (0xFF00 & ni) >> 8);
805d132d	233	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
715ee191 LM	234	MAX9867_NI_LOW_MASK, 0x00FF & ni);
	235	if (max9867->master) {
	236	if (max9867->dsp_a) {
	237	value = MAX9867_IFC1B_48X;
	238	} else {
	239	rate = params_rate(params) * 2 * params_width(params);
	240	ratio = max9867->pclk / rate;
	241	switch (params_width(params)) {
b1461450	242	case 8:
b1461450	243	case 16:
715ee191 LM	244	switch (ratio) {
	245	case 2:
	246	value = MAX9867_IFC1B_PCLK_2;
	247	break;
	248	case 4:
	249	value = MAX9867_IFC1B_PCLK_4;
	250	break;
	251	case 8:
	252	value = MAX9867_IFC1B_PCLK_8;
	253	break;
	254	case 16:
	255	value = MAX9867_IFC1B_PCLK_16;
	256	break;
	257	default:
	258	return -EINVAL;
	259	}
	260	break;
	261	case 24:
	262	value = MAX9867_IFC1B_48X;
	263	break;
	264	case 32:
	265	value = MAX9867_IFC1B_64X;
b1461450	266	break;
b1461450	267	default:
805d132d	268	return -EINVAL;
805d132d	269	}
805d132d	270	}
805d132d	271	regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
715ee191 LM	272	MAX9867_IFC1B_BCLK_MASK, value);
	273	} else {
	274	/*
	275	* digital pll locks on to any externally supplied LRCLK signal
	276	* and also enable rapid lock mode.
	277	*/
	278	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
	279	MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
	280	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
	281	MAX9867_PLL, MAX9867_PLL);
805d132d	282	}
	283	return 0;
	284	}
	285
18e028e2	286	static int max9867_mute(struct snd_soc_dai *dai, int mute, int direction)
805d132d	287	{
91880a6b KM	288	struct snd_soc_component *component = dai->component;
91880a6b KM	289	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
805d132d	290
bc2610a6 LM	291	return regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
bc2610a6 LM	292	1 << 6, !!mute << 6);
805d132d	293	}
	294
	295	static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	296	int clk_id, unsigned int freq, int dir)
	297	{
91880a6b KM	298	struct snd_soc_component *component = codec_dai->component;
91880a6b KM	299	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
805d132d	300	int value = 0;
	301
	302	/* Set the prescaler based on the master clock frequency*/
	303	if (freq >= 10000000 && freq <= 20000000) {
	304	value \|= MAX9867_PSCLK_10_20;
933662f2	305	max9867->pclk = freq;
805d132d	306	} else if (freq >= 20000000 && freq <= 40000000) {
805d132d	307	value \|= MAX9867_PSCLK_20_40;
933662f2	308	max9867->pclk = freq / 2;
805d132d	309	} else if (freq >= 40000000 && freq <= 60000000) {
805d132d	310	value \|= MAX9867_PSCLK_40_60;
933662f2	311	max9867->pclk = freq / 4;
805d132d	312	} else {
8b9c716a LM	313	dev_err(component->dev,
	314	"Invalid clock frequency %uHz (required 10-60MHz)\n",
	315	freq);
805d132d	316	return -EINVAL;
805d132d	317	}
715ee191 LM	318	if (freq % 48000 == 0)
	319	max9867->constraints = &max9867_constraints_48k;
	320	else if (freq % 44100 == 0)
	321	max9867->constraints = &max9867_constraints_44k1;
	322	else
	323	dev_warn(component->dev,
	324	"Unable to set exact rate with %uHz clock frequency\n",
	325	freq);
805d132d	326	max9867->sysclk = freq;
715ee191	327	value = value << MAX9867_PSCLK_SHIFT;
805d132d	328	/* exact integer mode is not supported */
	329	value &= ~MAX9867_FREQ_MASK;
	330	regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
	331	MAX9867_PSCLK_MASK, value);
	332	return 0;
	333	}
	334
	335	static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
	336	unsigned int fmt)
	337	{
91880a6b KM	338	struct snd_soc_component *component = codec_dai->component;
91880a6b KM	339	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
715ee191	340	u8 iface1A, iface1B;
805d132d	341
	342	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	343	case SND_SOC_DAIFMT_CBM_CFM:
715ee191 LM	344	max9867->master = true;
	345	iface1A = MAX9867_MASTER;
	346	iface1B = MAX9867_IFC1B_48X;
805d132d	347	break;
805d132d	348	case SND_SOC_DAIFMT_CBS_CFS:
715ee191 LM	349	max9867->master = false;
715ee191 LM	350	iface1A = iface1B = 0;
805d132d	351	break;
	352	default:
	353	return -EINVAL;
	354	}
	355
79e13974 LM	356	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
79e13974 LM	357	case SND_SOC_DAIFMT_I2S:
715ee191	358	max9867->dsp_a = false;
79e13974 LM	359	iface1A \|= MAX9867_I2S_DLY;
	360	break;
	361	case SND_SOC_DAIFMT_DSP_A:
715ee191	362	max9867->dsp_a = true;
79e13974 LM	363	iface1A \|= MAX9867_TDM_MODE \| MAX9867_SDOUT_HIZ;
	364	break;
	365	default:
	366	return -EINVAL;
	367	}
805d132d	368
	369	/* Clock inversion bits, BCI and WCI */
	370	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	371	case SND_SOC_DAIFMT_NB_NF:
	372	break;
	373	case SND_SOC_DAIFMT_IB_IF:
	374	iface1A \|= MAX9867_WCI_MODE \| MAX9867_BCI_MODE;
	375	break;
	376	case SND_SOC_DAIFMT_IB_NF:
	377	iface1A \|= MAX9867_BCI_MODE;
	378	break;
	379	case SND_SOC_DAIFMT_NB_IF:
	380	iface1A \|= MAX9867_WCI_MODE;
	381	break;
	382	default:
	383	return -EINVAL;
	384	}
	385
9fe78b28	386	regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
80b9fa4d PD	387	regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
80b9fa4d PD	388	MAX9867_IFC1B_BCLK_MASK, iface1B);
715ee191	389
805d132d	390	return 0;
	391	}
	392
eb59d73c	393	static const struct snd_soc_dai_ops max9867_dai_ops = {
805d132d	394	.set_sysclk = max9867_set_dai_sysclk,
715ee191	395	.set_fmt = max9867_dai_set_fmt,
18e028e2	396	.mute_stream = max9867_mute,
715ee191 LM	397	.startup = max9867_startup,
715ee191 LM	398	.hw_params = max9867_dai_hw_params,
18e028e2	399	.no_capture_mute = 1,
805d132d	400	};
805d132d	401
805d132d	402	static struct snd_soc_dai_driver max9867_dai[] = {
	403	{
	404	.name = "max9867-aif1",
	405	.playback = {
	406	.stream_name = "HiFi Playback",
e6ceb922	407	.channels_min = 2,
805d132d	408	.channels_max = 2,
715ee191 LM	409	.rates = SNDRV_PCM_RATE_8000_48000,
715ee191 LM	410	.formats = SNDRV_PCM_FMTBIT_S16_LE,
805d132d	411	},
	412	.capture = {
	413	.stream_name = "HiFi Capture",
e6ceb922	414	.channels_min = 2,
805d132d	415	.channels_max = 2,
715ee191 LM	416	.rates = SNDRV_PCM_RATE_8000_48000,
715ee191 LM	417	.formats = SNDRV_PCM_FMTBIT_S16_LE,
805d132d	418	},
805d132d	419	.ops = &max9867_dai_ops,
e6ceb922	420	.symmetric_rates = 1,
805d132d	421	}
	422	};
	423
29f58ff0 LM	424	#ifdef CONFIG_PM
29f58ff0 LM	425	static int max9867_suspend(struct snd_soc_component *component)
805d132d	426	{
29f58ff0	427	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
805d132d	428
805d132d	429	return 0;
	430	}
	431
29f58ff0	432	static int max9867_resume(struct snd_soc_component *component)
805d132d	433	{
29f58ff0	434	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
805d132d	435
805d132d	436	return 0;
805d132d	437	}
29f58ff0 LM	438	#else
	439	#define max9867_suspend NULL
	440	#define max9867_resume NULL
805d132d	441	#endif
805d132d	442
29f58ff0 LM	443	static int max9867_set_bias_level(struct snd_soc_component *component,
	444	enum snd_soc_bias_level level)
	445	{
	446	int err;
	447	struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
	448
	449	switch (level) {
	450	case SND_SOC_BIAS_STANDBY:
	451	if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
	452	err = regcache_sync(max9867->regmap);
	453	if (err)
	454	return err;
	455
29c859df PD	456	err = regmap_write(max9867->regmap,
29c859df PD	457	MAX9867_PWRMAN, 0xff);
29f58ff0 LM	458	if (err)
	459	return err;
	460	}
	461	break;
	462	case SND_SOC_BIAS_OFF:
29c859df	463	err = regmap_write(max9867->regmap, MAX9867_PWRMAN, 0);
29f58ff0 LM	464	if (err)
	465	return err;
	466
	467	regcache_mark_dirty(max9867->regmap);
	468	break;
	469	default:
	470	break;
	471	}
	472
	473	return 0;
	474	}
	475
91880a6b	476	static const struct snd_soc_component_driver max9867_component = {
91880a6b KM	477	.controls = max9867_snd_controls,
	478	.num_controls = ARRAY_SIZE(max9867_snd_controls),
	479	.dapm_routes = max9867_audio_map,
	480	.num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
	481	.dapm_widgets = max9867_dapm_widgets,
	482	.num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
29f58ff0 LM	483	.suspend = max9867_suspend,
	484	.resume = max9867_resume,
	485	.set_bias_level = max9867_set_bias_level,
91880a6b KM	486	.idle_bias_on = 1,
	487	.use_pmdown_time = 1,
	488	.endianness = 1,
	489	.non_legacy_dai_naming = 1,
805d132d	490	};
	491
	492	static bool max9867_volatile_register(struct device *dev, unsigned int reg)
	493	{
	494	switch (reg) {
	495	case MAX9867_STATUS:
	496	case MAX9867_JACKSTATUS:
	497	case MAX9867_AUXHIGH:
	498	case MAX9867_AUXLOW:
	499	return true;
	500	default:
	501	return false;
	502	}
	503	}
	504
250a99e7	505	static const struct regmap_config max9867_regmap = {
805d132d	506	.reg_bits = 8,
	507	.val_bits = 8,
	508	.max_register = MAX9867_REVISION,
805d132d	509	.volatile_reg = max9867_volatile_register,
	510	.cache_type = REGCACHE_RBTREE,
	511	};
	512
	513	static int max9867_i2c_probe(struct i2c_client *i2c,
	514	const struct i2c_device_id *id)
	515	{
	516	struct max9867_priv *max9867;
8efc1afd	517	int ret, reg;
805d132d	518
933662f2	519	max9867 = devm_kzalloc(&i2c->dev, sizeof(*max9867), GFP_KERNEL);
805d132d	520	if (!max9867)
	521	return -ENOMEM;
	522
	523	i2c_set_clientdata(i2c, max9867);
	524	max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
	525	if (IS_ERR(max9867->regmap)) {
	526	ret = PTR_ERR(max9867->regmap);
8b9c716a	527	dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
805d132d	528	return ret;
805d132d	529	}
933662f2	530	ret = regmap_read(max9867->regmap, MAX9867_REVISION, &reg);
805d132d	531	if (ret < 0) {
	532	dev_err(&i2c->dev, "Failed to read: %d\n", ret);
	533	return ret;
	534	}
	535	dev_info(&i2c->dev, "device revision: %x\n", reg);
91880a6b	536	ret = devm_snd_soc_register_component(&i2c->dev, &max9867_component,
805d132d	537	max9867_dai, ARRAY_SIZE(max9867_dai));
8efc1afd	538	if (ret < 0)
91880a6b	539	dev_err(&i2c->dev, "Failed to register component: %d\n", ret);
805d132d	540	return ret;
	541	}
	542
805d132d	543	static const struct i2c_device_id max9867_i2c_id[] = {
805d132d	544	{ "max9867", 0 },
1b36e4a2	545	{ }
805d132d	546	};
56af0e4c	547	MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);
805d132d	548
	549	static const struct of_device_id max9867_of_match[] = {
	550	{ .compatible = "maxim,max9867", },
	551	{ }
	552	};
56af0e4c	553	MODULE_DEVICE_TABLE(of, max9867_of_match);
805d132d	554
805d132d	555	static struct i2c_driver max9867_i2c_driver = {
	556	.driver = {
	557	.name = "max9867",
	558	.of_match_table = of_match_ptr(max9867_of_match),
805d132d	559	},
805d132d	560	.probe = max9867_i2c_probe,
805d132d	561	.id_table = max9867_i2c_id,
	562	};
	563
	564	module_i2c_driver(max9867_i2c_driver);
	565
8084945d LM	566	MODULE_AUTHOR("Ladislav Michl <ladis@linux-mips.org>");
8084945d LM	567	MODULE_DESCRIPTION("ASoC MAX9867 driver");
805d132d	568	MODULE_LICENSE("GPL");