ASoC: add ak4613 support (b0757062) · Commits · e / devices / android_kernel_xiaomi_nabu

Documentation/devicetree/bindings/sound/ak4613.txt

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+17 −0

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			AK4613 I2C transmitter

			This device supports I2C mode only.

			Required properties:

			- compatible : "asahi-kasei,ak4613"
			- reg : The chip select number on the I2C bus

			Example:

			&i2c {
			ak4613: ak4613@0x10 {
			compatible = "asahi-kasei,ak4613";
			reg = <0x10>;
			};
			};

sound/soc/codecs/Kconfig

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -36,6 +36,7 @@ config SND_SOC_ALL_CODECS
	select SND_SOC_AK4104 if SPI_MASTER		select SND_SOC_AK4104 if SPI_MASTER
	select SND_SOC_AK4535 if I2C		select SND_SOC_AK4535 if I2C
	select SND_SOC_AK4554		select SND_SOC_AK4554
			select SND_SOC_AK4613 if I2C
	select SND_SOC_AK4641 if I2C		select SND_SOC_AK4641 if I2C
	select SND_SOC_AK4642 if I2C		select SND_SOC_AK4642 if I2C
	select SND_SOC_AK4671 if I2C		select SND_SOC_AK4671 if I2C
	@@ -319,6 +320,10 @@ config SND_SOC_AK4535
	config SND_SOC_AK4554		config SND_SOC_AK4554
	tristate "AKM AK4554 CODEC"		tristate "AKM AK4554 CODEC"

			config SND_SOC_AK4613
			tristate "AKM AK4613 CODEC"
			depends on I2C

	config SND_SOC_AK4641		config SND_SOC_AK4641
	tristate		tristate

sound/soc/codecs/Makefile

+2 −0

sound/soc/codecs/ak4613.c

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+469 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* ak4613.c -- Asahi Kasei ALSA Soc Audio driver
			*
			* Copyright (C) 2015 Renesas Electronics Corporation
			* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
			*
			* Based on ak4642.c by Kuninori Morimoto
			* Based on wm8731.c by Richard Purdie
			* Based on ak4535.c by Richard Purdie
			* Based on wm8753.c by Liam Girdwood
			*
			* This program is free software; you can redistribute it and/or modify
			* it under the terms of the GNU General Public License version 2 as
			* published by the Free Software Foundation.
			*/

			#include <linux/clk.h>
			#include <linux/i2c.h>
			#include <linux/slab.h>
			#include <linux/of_device.h>
			#include <linux/module.h>
			#include <linux/regmap.h>
			#include <sound/soc.h>
			#include <sound/pcm_params.h>

			#define PW_MGMT1 0x00 /* Power Management 1 */
			#define PW_MGMT2 0x01 /* Power Management 2 */
			#define PW_MGMT3 0x02 /* Power Management 3 */
			#define CTRL1 0x03 /* Control 1 */
			#define CTRL2 0x04 /* Control 2 */
			#define DEMP1 0x05 /* De-emphasis1 */
			#define DEMP2 0x06 /* De-emphasis2 */
			#define OFD 0x07 /* Overflow Detect */
			#define ZRD 0x08 /* Zero Detect */
			#define ICTRL 0x09 /* Input Control */
			#define OCTRL 0x0a /* Output Control */
			#define LOUT1 0x0b /* LOUT1 Volume Control */
			#define ROUT1 0x0c /* ROUT1 Volume Control */
			#define LOUT2 0x0d /* LOUT2 Volume Control */
			#define ROUT2 0x0e /* ROUT2 Volume Control */
			#define LOUT3 0x0f /* LOUT3 Volume Control */
			#define ROUT3 0x10 /* ROUT3 Volume Control */
			#define LOUT4 0x11 /* LOUT4 Volume Control */
			#define ROUT4 0x12 /* ROUT4 Volume Control */
			#define LOUT5 0x13 /* LOUT5 Volume Control */
			#define ROUT5 0x14 /* ROUT5 Volume Control */
			#define LOUT6 0x15 /* LOUT6 Volume Control */
			#define ROUT6 0x16 /* ROUT6 Volume Control */

			/* PW_MGMT1 */
			#define RSTN BIT(0)
			#define PMDAC BIT(1)
			#define PMADC BIT(2)
			#define PMVR BIT(3)

			/* PW_MGMT2 */
			#define PMAD_ALL 0x7

			/* PW_MGMT3 */
			#define PMDA_ALL 0x3f

			/* CTRL1 */
			#define DIF0 BIT(3)
			#define DIF1 BIT(4)
			#define DIF2 BIT(5)
			#define TDM0 BIT(6)
			#define TDM1 BIT(7)
			#define NO_FMT (0xff)
			#define FMT_MASK (0xf8)

			/* CTRL2 */
			#define DFS_NORMAL_SPEED (0 << 2)
			#define DFS_DOUBLE_SPEED (1 << 2)
			#define DFS_QUAD_SPEED (2 << 2)

			struct ak4613_priv {
			struct mutex lock;

			unsigned int fmt;
			u8 fmt_ctrl;
			int cnt;
			};

			struct ak4613_formats {
			unsigned int width;
			unsigned int fmt;
			};

			struct ak4613_interface {
			struct ak4613_formats capture;
			struct ak4613_formats playback;
			};

			static const struct reg_default ak4613_reg[] = {
			{ 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
			{ 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
			{ 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
			{ 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
			{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
			{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
			};

			#define AUDIO_IFACE_IDX_TO_VAL(i) (i << 3)
			#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
			static const struct ak4613_interface ak4613_iface[] = {
			/* capture / / playback */
			[0] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(16, RIGHT_J) },
			[1] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(20, RIGHT_J) },
			[2] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, RIGHT_J) },
			[3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
			[4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
			};

			static const struct regmap_config ak4613_regmap_cfg = {
			.reg_bits = 8,
			.val_bits = 8,
			.max_register = 0x16,
			.reg_defaults = ak4613_reg,
			.num_reg_defaults = ARRAY_SIZE(ak4613_reg),
			};

			static const struct of_device_id ak4613_of_match[] = {
			{ .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
			{},
			};
			MODULE_DEVICE_TABLE(of, ak4613_of_match);

			static const struct i2c_device_id ak4613_i2c_id[] = {
			{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
			{ }
			};
			MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);

			static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {

			/* Outputs */
			SND_SOC_DAPM_OUTPUT("LOUT1"),
			SND_SOC_DAPM_OUTPUT("LOUT2"),
			SND_SOC_DAPM_OUTPUT("LOUT3"),
			SND_SOC_DAPM_OUTPUT("LOUT4"),
			SND_SOC_DAPM_OUTPUT("LOUT5"),
			SND_SOC_DAPM_OUTPUT("LOUT6"),

			SND_SOC_DAPM_OUTPUT("ROUT1"),
			SND_SOC_DAPM_OUTPUT("ROUT2"),
			SND_SOC_DAPM_OUTPUT("ROUT3"),
			SND_SOC_DAPM_OUTPUT("ROUT4"),
			SND_SOC_DAPM_OUTPUT("ROUT5"),
			SND_SOC_DAPM_OUTPUT("ROUT6"),

			/* Inputs */
			SND_SOC_DAPM_INPUT("LIN1"),
			SND_SOC_DAPM_INPUT("LIN2"),

			SND_SOC_DAPM_INPUT("RIN1"),
			SND_SOC_DAPM_INPUT("RIN2"),

			/* DAC */
			SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
			SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
			SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
			SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
			SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
			SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),

			/* ADC */
			SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
			SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
			};

			static const struct snd_soc_dapm_route ak4613_intercon[] = {
			{"LOUT1", NULL, "DAC1"},
			{"LOUT2", NULL, "DAC2"},
			{"LOUT3", NULL, "DAC3"},
			{"LOUT4", NULL, "DAC4"},
			{"LOUT5", NULL, "DAC5"},
			{"LOUT6", NULL, "DAC6"},

			{"ROUT1", NULL, "DAC1"},
			{"ROUT2", NULL, "DAC2"},
			{"ROUT3", NULL, "DAC3"},
			{"ROUT4", NULL, "DAC4"},
			{"ROUT5", NULL, "DAC5"},
			{"ROUT6", NULL, "DAC6"},

			{"DAC1", NULL, "Playback"},
			{"DAC2", NULL, "Playback"},
			{"DAC3", NULL, "Playback"},
			{"DAC4", NULL, "Playback"},
			{"DAC5", NULL, "Playback"},
			{"DAC6", NULL, "Playback"},

			{"Capture", NULL, "ADC1"},
			{"Capture", NULL, "ADC2"},

			{"ADC1", NULL, "LIN1"},
			{"ADC2", NULL, "LIN2"},

			{"ADC1", NULL, "RIN1"},
			{"ADC2", NULL, "RIN2"},
			};

			static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
			struct snd_soc_dai *dai)
			{
			struct snd_soc_codec *codec = dai->codec;
			struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
			struct device *dev = codec->dev;

			mutex_lock(&priv->lock);
			priv->cnt--;
			if (priv->cnt < 0) {
			dev_err(dev, "unexpected counter error\n");
			priv->cnt = 0;
			}
			if (!priv->cnt)
			priv->fmt_ctrl = NO_FMT;
			mutex_unlock(&priv->lock);
			}

			static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
			{
			struct snd_soc_codec *codec = dai->codec;
			struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);

			fmt &= SND_SOC_DAIFMT_FORMAT_MASK;

			switch (fmt) {
			case SND_SOC_DAIFMT_RIGHT_J:
			case SND_SOC_DAIFMT_LEFT_J:
			case SND_SOC_DAIFMT_I2S:
			priv->fmt = fmt;

			break;
			default:
			return -EINVAL;
			}

			return 0;
			}

			static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
			struct snd_pcm_hw_params *params,
			struct snd_soc_dai *dai)
			{
			struct snd_soc_codec *codec = dai->codec;
			struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
			const struct ak4613_formats *fmts;
			struct device *dev = codec->dev;
			unsigned int width = params_width(params);
			unsigned int fmt = priv->fmt;
			unsigned int rate;
			int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
			int i, ret;
			u8 fmt_ctrl, ctrl2;

			rate = params_rate(params);
			switch (rate) {
			case 32000:
			case 44100:
			case 48000:
			ctrl2 = DFS_NORMAL_SPEED;
			break;
			case 88200:
			case 96000:
			ctrl2 = DFS_DOUBLE_SPEED;
			break;
			case 176400:
			case 192000:
			ctrl2 = DFS_QUAD_SPEED;
			break;
			default:
			return -EINVAL;
			}

			/*
			* FIXME
			*
			* It doesn't support TDM at this point
			*/
			fmt_ctrl = NO_FMT;
			for (i = 0; i < ARRAY_SIZE(ak4613_iface); i++) {
			fmts = (is_play) ? &ak4613_iface[i].playback :
			&ak4613_iface[i].capture;

			if (fmts->fmt != fmt)
			continue;

			if (fmt == SND_SOC_DAIFMT_RIGHT_J) {
			if (fmts->width != width)
			continue;
			} else {
			if (fmts->width < width)
			continue;
			}

			fmt_ctrl = AUDIO_IFACE_IDX_TO_VAL(i);
			break;
			}

			ret = -EINVAL;
			if (fmt_ctrl == NO_FMT)
			goto hw_params_end;

			mutex_lock(&priv->lock);
			if ((priv->fmt_ctrl == NO_FMT) \|\|
			(priv->fmt_ctrl == fmt_ctrl)) {
			priv->fmt_ctrl = fmt_ctrl;
			priv->cnt++;
			ret = 0;
			}
			mutex_unlock(&priv->lock);

			if (ret < 0)
			goto hw_params_end;

			snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
			snd_soc_write(codec, CTRL2, ctrl2);

			hw_params_end:
			if (ret < 0)
			dev_warn(dev, "unsupported data width/format combination\n");

			return ret;
			}

			static int ak4613_set_bias_level(struct snd_soc_codec *codec,
			enum snd_soc_bias_level level)
			{
			u8 mgmt1 = 0;

			switch (level) {
			case SND_SOC_BIAS_ON:
			mgmt1 \|= RSTN;
			/* fall through */
			case SND_SOC_BIAS_PREPARE:
			mgmt1 \|= PMADC \| PMDAC;
			/* fall through */
			case SND_SOC_BIAS_STANDBY:
			mgmt1 \|= PMVR;
			/* fall through */
			case SND_SOC_BIAS_OFF:
			default:
			break;
			}

			snd_soc_write(codec, PW_MGMT1, mgmt1);

			return 0;
			}

			static const struct snd_soc_dai_ops ak4613_dai_ops = {
			.shutdown = ak4613_dai_shutdown,
			.set_fmt = ak4613_dai_set_fmt,
			.hw_params = ak4613_dai_hw_params,
			};

			#define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 \|\
			SNDRV_PCM_RATE_44100 \|\
			SNDRV_PCM_RATE_48000 \|\
			SNDRV_PCM_RATE_64000 \|\
			SNDRV_PCM_RATE_88200 \|\
			SNDRV_PCM_RATE_96000 \|\
			SNDRV_PCM_RATE_176400 \|\
			SNDRV_PCM_RATE_192000)
			#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S16_LE \|\
			SNDRV_PCM_FMTBIT_S24_LE)

			static struct snd_soc_dai_driver ak4613_dai = {
			.name = "ak4613-hifi",
			.playback = {
			.stream_name = "Playback",
			.channels_min = 2,
			.channels_max = 2,
			.rates = AK4613_PCM_RATE,
			.formats = AK4613_PCM_FMTBIT,
			},
			.capture = {
			.stream_name = "Capture",
			.channels_min = 2,
			.channels_max = 2,
			.rates = AK4613_PCM_RATE,
			.formats = AK4613_PCM_FMTBIT,
			},
			.ops = &ak4613_dai_ops,
			.symmetric_rates = 1,
			};

			static int ak4613_resume(struct snd_soc_codec *codec)
			{
			struct regmap *regmap = dev_get_regmap(codec->dev, NULL);

			regcache_mark_dirty(regmap);
			return regcache_sync(regmap);
			}

			static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
			.resume = ak4613_resume,
			.set_bias_level = ak4613_set_bias_level,
			.dapm_widgets = ak4613_dapm_widgets,
			.num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
			.dapm_routes = ak4613_intercon,
			.num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
			};

			static int ak4613_i2c_probe(struct i2c_client *i2c,
			const struct i2c_device_id *id)
			{
			struct device *dev = &i2c->dev;
			struct device_node *np = dev->of_node;
			const struct regmap_config *regmap_cfg;
			struct regmap *regmap;
			struct ak4613_priv *priv;

			regmap_cfg = NULL;
			if (np) {
			const struct of_device_id *of_id;

			of_id = of_match_device(ak4613_of_match, dev);
			if (of_id)
			regmap_cfg = of_id->data;
			} else {
			regmap_cfg = (const struct regmap_config *)id->driver_data;
			}

			if (!regmap_cfg)
			return -EINVAL;

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

			priv->fmt_ctrl = NO_FMT;
			priv->cnt = 0;

			mutex_init(&priv->lock);

			i2c_set_clientdata(i2c, priv);

			regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
			if (IS_ERR(regmap))
			return PTR_ERR(regmap);

			return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
			&ak4613_dai, 1);
			}

			static int ak4613_i2c_remove(struct i2c_client *client)
			{
			snd_soc_unregister_codec(&client->dev);
			return 0;
			}

			static struct i2c_driver ak4613_i2c_driver = {
			.driver = {
			.name = "ak4613-codec",
			.owner = THIS_MODULE,
			.of_match_table = ak4613_of_match,
			},
			.probe = ak4613_i2c_probe,
			.remove = ak4613_i2c_remove,
			.id_table = ak4613_i2c_id,
			};

			module_i2c_driver(ak4613_i2c_driver);

			MODULE_DESCRIPTION("Soc AK4613 driver");
			MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
			MODULE_LICENSE("GPL v2");

Original line number	Original line	Diff line number	Diff line
	@@ -26,6 +26,7 @@ snd-soc-ads117x-objs := ads117x.o
	snd-soc-ak4104-objs := ak4104.o		snd-soc-ak4104-objs := ak4104.o
	snd-soc-ak4535-objs := ak4535.o		snd-soc-ak4535-objs := ak4535.o
	snd-soc-ak4554-objs := ak4554.o		snd-soc-ak4554-objs := ak4554.o
			snd-soc-ak4613-objs := ak4613.o
	snd-soc-ak4641-objs := ak4641.o		snd-soc-ak4641-objs := ak4641.o
	snd-soc-ak4642-objs := ak4642.o		snd-soc-ak4642-objs := ak4642.o
	snd-soc-ak4671-objs := ak4671.o		snd-soc-ak4671-objs := ak4671.o
	@@ -216,6 +217,7 @@ obj-$(CONFIG_SND_SOC_ADS117X) += snd-soc-ads117x.o
	obj-$(CONFIG_SND_SOC_AK4104) += snd-soc-ak4104.o		obj-$(CONFIG_SND_SOC_AK4104) += snd-soc-ak4104.o
	obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o		obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o
	obj-$(CONFIG_SND_SOC_AK4554) += snd-soc-ak4554.o		obj-$(CONFIG_SND_SOC_AK4554) += snd-soc-ak4554.o
			obj-$(CONFIG_SND_SOC_AK4613) += snd-soc-ak4613.o
	obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o		obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o
	obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o		obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o
	obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o		obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o