[linux-2.6-block.git] / sound / soc / codecs / wm8711.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * wm8711.c  --  WM8711 ALSA SoC Audio driver
 *
 * Copyright 2006 Wolfson Microelectronics
 *
 * Author: Mike Arthur <Mike.Arthur@wolfsonmicro.com>
 *
 * Based on wm8731.c by Richard Purdie
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/initval.h>

#include "wm8711.h"

/* codec private data */
struct wm8711_priv {
	struct regmap *regmap;
	unsigned int sysclk;
};

/*
 * wm8711 register cache
 * We can't read the WM8711 register space when we are
 * using 2 wire for device control, so we cache them instead.
 * There is no point in caching the reset register
 */
static const struct reg_default wm8711_reg_defaults[] = {
	{ 0, 0x0079 }, { 1, 0x0079 }, { 2, 0x000a }, { 3, 0x0008 },
	{ 4, 0x009f }, { 5, 0x000a }, { 6, 0x0000 }, { 7, 0x0000 },
};

static bool wm8711_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case WM8711_RESET:
		return true;
	default:
		return false;
	}
}

#define wm8711_reset(c)	snd_soc_component_write(c, WM8711_RESET, 0)

static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);

static const struct snd_kcontrol_new wm8711_snd_controls[] = {

SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V,
		 0, 127, 0, out_tlv),
SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V,
	7, 1, 0),

};

/* Output Mixer */
static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = {
SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0),
SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0),
};

static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = {
SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1,
	&wm8711_output_mixer_controls[0],
	ARRAY_SIZE(wm8711_output_mixer_controls)),
SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1),
SND_SOC_DAPM_OUTPUT("LOUT"),
SND_SOC_DAPM_OUTPUT("LHPOUT"),
SND_SOC_DAPM_OUTPUT("ROUT"),
SND_SOC_DAPM_OUTPUT("RHPOUT"),
};

static const struct snd_soc_dapm_route wm8711_intercon[] = {
	/* output mixer */
	{"Output Mixer", "Line Bypass Switch", "Line Input"},
	{"Output Mixer", "HiFi Playback Switch", "DAC"},

	/* outputs */
	{"RHPOUT", NULL, "Output Mixer"},
	{"ROUT", NULL, "Output Mixer"},
	{"LHPOUT", NULL, "Output Mixer"},
	{"LOUT", NULL, "Output Mixer"},
};

struct _coeff_div {
	u32 mclk;
	u32 rate;
	u16 fs;
	u8 sr:4;
	u8 bosr:1;
	u8 usb:1;
};

/* codec mclk clock divider coefficients */
static const struct _coeff_div coeff_div[] = {
	/* 48k */
	{12288000, 48000, 256, 0x0, 0x0, 0x0},
	{18432000, 48000, 384, 0x0, 0x1, 0x0},
	{12000000, 48000, 250, 0x0, 0x0, 0x1},

	/* 32k */
	{12288000, 32000, 384, 0x6, 0x0, 0x0},
	{18432000, 32000, 576, 0x6, 0x1, 0x0},
	{12000000, 32000, 375, 0x6, 0x0, 0x1},

	/* 8k */
	{12288000, 8000, 1536, 0x3, 0x0, 0x0},
	{18432000, 8000, 2304, 0x3, 0x1, 0x0},
	{11289600, 8000, 1408, 0xb, 0x0, 0x0},
	{16934400, 8000, 2112, 0xb, 0x1, 0x0},
	{12000000, 8000, 1500, 0x3, 0x0, 0x1},

	/* 96k */
	{12288000, 96000, 128, 0x7, 0x0, 0x0},
	{18432000, 96000, 192, 0x7, 0x1, 0x0},
	{12000000, 96000, 125, 0x7, 0x0, 0x1},

	/* 44.1k */
	{11289600, 44100, 256, 0x8, 0x0, 0x0},
	{16934400, 44100, 384, 0x8, 0x1, 0x0},
	{12000000, 44100, 272, 0x8, 0x1, 0x1},

	/* 88.2k */
	{11289600, 88200, 128, 0xf, 0x0, 0x0},
	{16934400, 88200, 192, 0xf, 0x1, 0x0},
	{12000000, 88200, 136, 0xf, 0x1, 0x1},
};

static inline int get_coeff(int mclk, int rate)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
			return i;
	}
	return 0;
}

static int wm8711_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 wm8711_priv *wm8711 =  snd_soc_component_get_drvdata(component);
	u16 iface = snd_soc_component_read(component, WM8711_IFACE) & 0xfff3;
	int i = get_coeff(wm8711->sysclk, params_rate(params));
	u16 srate = (coeff_div[i].sr << 2) |
		(coeff_div[i].bosr << 1) | coeff_div[i].usb;

	snd_soc_component_write(component, WM8711_SRATE, srate);

	/* bit size */
	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		iface |= 0x0004;
		break;
	case 24:
		iface |= 0x0008;
		break;
	}

	snd_soc_component_write(component, WM8711_IFACE, iface);
	return 0;
}

static int wm8711_pcm_prepare(struct snd_pcm_substream *substream,
			      struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;

	/* set active */
	snd_soc_component_write(component, WM8711_ACTIVE, 0x0001);

	return 0;
}

static void wm8711_shutdown(struct snd_pcm_substream *substream,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;

	/* deactivate */
	if (!snd_soc_component_active(component)) {
		udelay(50);
		snd_soc_component_write(component, WM8711_ACTIVE, 0x0);
	}
}

static int wm8711_mute(struct snd_soc_dai *dai, int mute, int direction)
{
	struct snd_soc_component *component = dai->component;
	u16 mute_reg = snd_soc_component_read(component, WM8711_APDIGI) & 0xfff7;

	if (mute)
		snd_soc_component_write(component, WM8711_APDIGI, mute_reg | 0x8);
	else
		snd_soc_component_write(component, WM8711_APDIGI, mute_reg);

	return 0;
}

static int wm8711_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 wm8711_priv *wm8711 =  snd_soc_component_get_drvdata(component);

	switch (freq) {
	case 11289600:
	case 12000000:
	case 12288000:
	case 16934400:
	case 18432000:
		wm8711->sysclk = freq;
		return 0;
	}
	return -EINVAL;
}

static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_component *component = codec_dai->component;
	u16 iface = snd_soc_component_read(component, WM8711_IFACE) & 0x000c;

	/* set master/slave audio interface */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		iface |= 0x0040;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	default:
		return -EINVAL;
	}

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		iface |= 0x0002;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		iface |= 0x0001;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		iface |= 0x0003;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		iface |= 0x0013;
		break;
	default:
		return -EINVAL;
	}

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_IF:
		iface |= 0x0090;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		iface |= 0x0080;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		iface |= 0x0010;
		break;
	default:
		return -EINVAL;
	}

	/* set iface */
	snd_soc_component_write(component, WM8711_IFACE, iface);
	return 0;
}

static int wm8711_set_bias_level(struct snd_soc_component *component,
	enum snd_soc_bias_level level)
{
	struct wm8711_priv *wm8711 = snd_soc_component_get_drvdata(component);
	u16 reg = snd_soc_component_read(component, WM8711_PWR) & 0xff7f;

	switch (level) {
	case SND_SOC_BIAS_ON:
		snd_soc_component_write(component, WM8711_PWR, reg);
		break;
	case SND_SOC_BIAS_PREPARE:
		break;
	case SND_SOC_BIAS_STANDBY:
		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
			regcache_sync(wm8711->regmap);

		snd_soc_component_write(component, WM8711_PWR, reg | 0x0040);
		break;
	case SND_SOC_BIAS_OFF:
		snd_soc_component_write(component, WM8711_ACTIVE, 0x0);
		snd_soc_component_write(component, WM8711_PWR, 0xffff);
		break;
	}
	return 0;
}

#define WM8711_RATES SNDRV_PCM_RATE_8000_96000

#define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
	SNDRV_PCM_FMTBIT_S24_LE)

static const struct snd_soc_dai_ops wm8711_ops = {
	.prepare = wm8711_pcm_prepare,
	.hw_params = wm8711_hw_params,
	.shutdown = wm8711_shutdown,
	.mute_stream = wm8711_mute,
	.set_sysclk = wm8711_set_dai_sysclk,
	.set_fmt = wm8711_set_dai_fmt,
	.no_capture_mute = 1,
};

static struct snd_soc_dai_driver wm8711_dai = {
	.name = "wm8711-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM8711_RATES,
		.formats = WM8711_FORMATS,
	},
	.ops = &wm8711_ops,
};

static int wm8711_probe(struct snd_soc_component *component)
{
	int ret;

	ret = wm8711_reset(component);
	if (ret < 0) {
		dev_err(component->dev, "Failed to issue reset\n");
		return ret;
	}

	/* Latch the update bits */
	snd_soc_component_update_bits(component, WM8711_LOUT1V, 0x0100, 0x0100);
	snd_soc_component_update_bits(component, WM8711_ROUT1V, 0x0100, 0x0100);

	return ret;

}

static const struct snd_soc_component_driver soc_component_dev_wm8711 = {
	.probe			= wm8711_probe,
	.set_bias_level		= wm8711_set_bias_level,
	.controls		= wm8711_snd_controls,
	.num_controls		= ARRAY_SIZE(wm8711_snd_controls),
	.dapm_widgets		= wm8711_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(wm8711_dapm_widgets),
	.dapm_routes		= wm8711_intercon,
	.num_dapm_routes	= ARRAY_SIZE(wm8711_intercon),
	.suspend_bias_off	= 1,
	.idle_bias_on		= 1,
	.use_pmdown_time	= 1,
	.endianness		= 1,
	.non_legacy_dai_naming	= 1,
};

static const struct of_device_id wm8711_of_match[] = {
	{ .compatible = "wlf,wm8711", },
	{ }
};
MODULE_DEVICE_TABLE(of, wm8711_of_match);

static const struct regmap_config wm8711_regmap = {
	.reg_bits = 7,
	.val_bits = 9,
	.max_register = WM8711_RESET,

	.reg_defaults = wm8711_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(wm8711_reg_defaults),
	.cache_type = REGCACHE_RBTREE,

	.volatile_reg = wm8711_volatile,
};

#if defined(CONFIG_SPI_MASTER)
static int wm8711_spi_probe(struct spi_device *spi)
{
	struct wm8711_priv *wm8711;
	int ret;

	wm8711 = devm_kzalloc(&spi->dev, sizeof(struct wm8711_priv),
			      GFP_KERNEL);
	if (wm8711 == NULL)
		return -ENOMEM;

	wm8711->regmap = devm_regmap_init_spi(spi, &wm8711_regmap);
	if (IS_ERR(wm8711->regmap))
		return PTR_ERR(wm8711->regmap);

	spi_set_drvdata(spi, wm8711);

	ret = devm_snd_soc_register_component(&spi->dev,
			&soc_component_dev_wm8711, &wm8711_dai, 1);

	return ret;
}

static struct spi_driver wm8711_spi_driver = {
	.driver = {
		.name	= "wm8711",
		.of_match_table = wm8711_of_match,
	},
	.probe		= wm8711_spi_probe,
};
#endif /* CONFIG_SPI_MASTER */

#if IS_ENABLED(CONFIG_I2C)
static int wm8711_i2c_probe(struct i2c_client *client,
			    const struct i2c_device_id *id)
{
	struct wm8711_priv *wm8711;
	int ret;

	wm8711 = devm_kzalloc(&client->dev, sizeof(struct wm8711_priv),
			      GFP_KERNEL);
	if (wm8711 == NULL)
		return -ENOMEM;

	wm8711->regmap = devm_regmap_init_i2c(client, &wm8711_regmap);
	if (IS_ERR(wm8711->regmap))
		return PTR_ERR(wm8711->regmap);

	i2c_set_clientdata(client, wm8711);

	ret = devm_snd_soc_register_component(&client->dev,
			&soc_component_dev_wm8711, &wm8711_dai, 1);

	return ret;
}

static const struct i2c_device_id wm8711_i2c_id[] = {
	{ "wm8711", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id);

static struct i2c_driver wm8711_i2c_driver = {
	.driver = {
		.name = "wm8711",
		.of_match_table = wm8711_of_match,
	},
	.probe =    wm8711_i2c_probe,
	.id_table = wm8711_i2c_id,
};
#endif

static int __init wm8711_modinit(void)
{
	int ret;
#if IS_ENABLED(CONFIG_I2C)
	ret = i2c_add_driver(&wm8711_i2c_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n",
		       ret);
	}
#endif
#if defined(CONFIG_SPI_MASTER)
	ret = spi_register_driver(&wm8711_spi_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n",
		       ret);
	}
#endif
	return 0;
}
module_init(wm8711_modinit);

static void __exit wm8711_exit(void)
{
#if IS_ENABLED(CONFIG_I2C)
	i2c_del_driver(&wm8711_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
	spi_unregister_driver(&wm8711_spi_driver);
#endif
}
module_exit(wm8711_exit);

MODULE_DESCRIPTION("ASoC WM8711 driver");
MODULE_AUTHOR("Mike Arthur");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
bd6d4177 MA	2	/*
	3	* wm8711.c -- WM8711 ALSA SoC Audio driver
	4	*
	5	* Copyright 2006 Wolfson Microelectronics
	6	*
9a185b9a	7	* Author: Mike Arthur <Mike.Arthur@wolfsonmicro.com>
bd6d4177 MA	8	*
bd6d4177 MA	9	* Based on wm8731.c by Richard Purdie
bd6d4177 MA	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
	14	#include <linux/init.h>
	15	#include <linux/delay.h>
	16	#include <linux/pm.h>
	17	#include <linux/i2c.h>
5aa5fa9f	18	#include <linux/regmap.h>
bb262767	19	#include <linux/spi/spi.h>
5a0e3ad6	20	#include <linux/slab.h>
1552c8f6	21	#include <linux/of_device.h>
bd6d4177 MA	22	#include <sound/core.h>
	23	#include <sound/pcm.h>
	24	#include <sound/pcm_params.h>
	25	#include <sound/soc.h>
b5ab887e	26	#include <sound/tlv.h>
bd6d4177 MA	27	#include <sound/initval.h>
	28
	29	#include "wm8711.h"
	30
bd6d4177 MA	31	/* codec private data */
bd6d4177 MA	32	struct wm8711_priv {
5aa5fa9f	33	struct regmap *regmap;
bd6d4177 MA	34	unsigned int sysclk;
	35	};
	36
	37	/*
	38	* wm8711 register cache
	39	* We can't read the WM8711 register space when we are
	40	* using 2 wire for device control, so we cache them instead.
	41	* There is no point in caching the reset register
	42	*/
5aa5fa9f MB	43	static const struct reg_default wm8711_reg_defaults[] = {
	44	{ 0, 0x0079 }, { 1, 0x0079 }, { 2, 0x000a }, { 3, 0x0008 },
	45	{ 4, 0x009f }, { 5, 0x000a }, { 6, 0x0000 }, { 7, 0x0000 },
bd6d4177 MA	46	};
bd6d4177 MA	47
5aa5fa9f MB	48	static bool wm8711_volatile(struct device *dev, unsigned int reg)
	49	{
	50	switch (reg) {
	51	case WM8711_RESET:
	52	return true;
	53	default:
	54	return false;
	55	}
	56	}
	57
56fc4d2a	58	#define wm8711_reset(c) snd_soc_component_write(c, WM8711_RESET, 0)
bd6d4177	59
b5ab887e MB	60	static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
b5ab887e MB	61
bd6d4177 MA	62	static const struct snd_kcontrol_new wm8711_snd_controls[] = {
bd6d4177 MA	63
b5ab887e MB	64	SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V,
b5ab887e MB	65	0, 127, 0, out_tlv),
bd6d4177 MA	66	SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V,
	67	7, 1, 0),
	68
	69	};
	70
bd6d4177 MA	71	/* Output Mixer */
	72	static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = {
	73	SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0),
	74	SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0),
	75	};
	76
	77	static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = {
	78	SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1,
	79	&wm8711_output_mixer_controls[0],
	80	ARRAY_SIZE(wm8711_output_mixer_controls)),
	81	SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1),
	82	SND_SOC_DAPM_OUTPUT("LOUT"),
	83	SND_SOC_DAPM_OUTPUT("LHPOUT"),
	84	SND_SOC_DAPM_OUTPUT("ROUT"),
	85	SND_SOC_DAPM_OUTPUT("RHPOUT"),
	86	};
	87
20314000	88	static const struct snd_soc_dapm_route wm8711_intercon[] = {
bd6d4177 MA	89	/* output mixer */
	90	{"Output Mixer", "Line Bypass Switch", "Line Input"},
	91	{"Output Mixer", "HiFi Playback Switch", "DAC"},
	92
	93	/* outputs */
	94	{"RHPOUT", NULL, "Output Mixer"},
	95	{"ROUT", NULL, "Output Mixer"},
	96	{"LHPOUT", NULL, "Output Mixer"},
	97	{"LOUT", NULL, "Output Mixer"},
	98	};
	99
bd6d4177 MA	100	struct _coeff_div {
	101	u32 mclk;
	102	u32 rate;
	103	u16 fs;
	104	u8 sr:4;
	105	u8 bosr:1;
	106	u8 usb:1;
	107	};
	108
	109	/* codec mclk clock divider coefficients */
	110	static const struct _coeff_div coeff_div[] = {
	111	/* 48k */
	112	{12288000, 48000, 256, 0x0, 0x0, 0x0},
	113	{18432000, 48000, 384, 0x0, 0x1, 0x0},
	114	{12000000, 48000, 250, 0x0, 0x0, 0x1},
	115
	116	/* 32k */
	117	{12288000, 32000, 384, 0x6, 0x0, 0x0},
	118	{18432000, 32000, 576, 0x6, 0x1, 0x0},
	119	{12000000, 32000, 375, 0x6, 0x0, 0x1},
	120
	121	/* 8k */
	122	{12288000, 8000, 1536, 0x3, 0x0, 0x0},
	123	{18432000, 8000, 2304, 0x3, 0x1, 0x0},
	124	{11289600, 8000, 1408, 0xb, 0x0, 0x0},
	125	{16934400, 8000, 2112, 0xb, 0x1, 0x0},
	126	{12000000, 8000, 1500, 0x3, 0x0, 0x1},
	127
	128	/* 96k */
	129	{12288000, 96000, 128, 0x7, 0x0, 0x0},
	130	{18432000, 96000, 192, 0x7, 0x1, 0x0},
	131	{12000000, 96000, 125, 0x7, 0x0, 0x1},
	132
	133	/* 44.1k */
	134	{11289600, 44100, 256, 0x8, 0x0, 0x0},
	135	{16934400, 44100, 384, 0x8, 0x1, 0x0},
	136	{12000000, 44100, 272, 0x8, 0x1, 0x1},
	137
	138	/* 88.2k */
	139	{11289600, 88200, 128, 0xf, 0x0, 0x0},
	140	{16934400, 88200, 192, 0xf, 0x1, 0x0},
	141	{12000000, 88200, 136, 0xf, 0x1, 0x1},
	142	};
	143
	144	static inline int get_coeff(int mclk, int rate)
	145	{
	146	int i;
	147
	148	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
	149	if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
	150	return i;
	151	}
	152	return 0;
	153	}
	154
	155	static int wm8711_hw_params(struct snd_pcm_substream *substream,
	156	struct snd_pcm_hw_params *params,
	157	struct snd_soc_dai *dai)
	158	{
56fc4d2a KM	159	struct snd_soc_component *component = dai->component;
56fc4d2a KM	160	struct wm8711_priv *wm8711 = snd_soc_component_get_drvdata(component);
6d75dfc3	161	u16 iface = snd_soc_component_read(component, WM8711_IFACE) & 0xfff3;
bd6d4177 MA	162	int i = get_coeff(wm8711->sysclk, params_rate(params));
	163	u16 srate = (coeff_div[i].sr << 2) \|
	164	(coeff_div[i].bosr << 1) \| coeff_div[i].usb;
	165
56fc4d2a	166	snd_soc_component_write(component, WM8711_SRATE, srate);
bd6d4177 MA	167
bd6d4177 MA	168	/* bit size */
b9abb548 MB	169	switch (params_width(params)) {
b9abb548 MB	170	case 16:
bd6d4177	171	break;
b9abb548	172	case 20:
bd6d4177 MA	173	iface \|= 0x0004;
bd6d4177 MA	174	break;
b9abb548	175	case 24:
bd6d4177 MA	176	iface \|= 0x0008;
	177	break;
	178	}
	179
56fc4d2a	180	snd_soc_component_write(component, WM8711_IFACE, iface);
bd6d4177 MA	181	return 0;
	182	}
	183
	184	static int wm8711_pcm_prepare(struct snd_pcm_substream *substream,
	185	struct snd_soc_dai *dai)
	186	{
56fc4d2a	187	struct snd_soc_component *component = dai->component;
bd6d4177 MA	188
bd6d4177 MA	189	/* set active */
56fc4d2a	190	snd_soc_component_write(component, WM8711_ACTIVE, 0x0001);
bd6d4177 MA	191
	192	return 0;
	193	}
	194
	195	static void wm8711_shutdown(struct snd_pcm_substream *substream,
	196	struct snd_soc_dai *dai)
	197	{
56fc4d2a	198	struct snd_soc_component *component = dai->component;
bd6d4177 MA	199
bd6d4177 MA	200	/* deactivate */
5e518edd	201	if (!snd_soc_component_active(component)) {
bd6d4177	202	udelay(50);
56fc4d2a	203	snd_soc_component_write(component, WM8711_ACTIVE, 0x0);
bd6d4177 MA	204	}
	205	}
	206
26d3c16e	207	static int wm8711_mute(struct snd_soc_dai *dai, int mute, int direction)
bd6d4177	208	{
56fc4d2a	209	struct snd_soc_component *component = dai->component;
6d75dfc3	210	u16 mute_reg = snd_soc_component_read(component, WM8711_APDIGI) & 0xfff7;
bd6d4177 MA	211
bd6d4177 MA	212	if (mute)
56fc4d2a	213	snd_soc_component_write(component, WM8711_APDIGI, mute_reg \| 0x8);
bd6d4177	214	else
56fc4d2a	215	snd_soc_component_write(component, WM8711_APDIGI, mute_reg);
bd6d4177 MA	216
	217	return 0;
	218	}
	219
	220	static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	221	int clk_id, unsigned int freq, int dir)
	222	{
56fc4d2a KM	223	struct snd_soc_component *component = codec_dai->component;
56fc4d2a KM	224	struct wm8711_priv *wm8711 = snd_soc_component_get_drvdata(component);
bd6d4177 MA	225
	226	switch (freq) {
	227	case 11289600:
	228	case 12000000:
	229	case 12288000:
	230	case 16934400:
	231	case 18432000:
	232	wm8711->sysclk = freq;
	233	return 0;
	234	}
	235	return -EINVAL;
	236	}
	237
	238	static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai,
	239	unsigned int fmt)
	240	{
56fc4d2a	241	struct snd_soc_component *component = codec_dai->component;
6d75dfc3	242	u16 iface = snd_soc_component_read(component, WM8711_IFACE) & 0x000c;
bd6d4177 MA	243
	244	/* set master/slave audio interface */
	245	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	246	case SND_SOC_DAIFMT_CBM_CFM:
	247	iface \|= 0x0040;
	248	break;
	249	case SND_SOC_DAIFMT_CBS_CFS:
	250	break;
	251	default:
	252	return -EINVAL;
	253	}
	254
	255	/* interface format */
	256	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	257	case SND_SOC_DAIFMT_I2S:
	258	iface \|= 0x0002;
	259	break;
	260	case SND_SOC_DAIFMT_RIGHT_J:
	261	break;
	262	case SND_SOC_DAIFMT_LEFT_J:
	263	iface \|= 0x0001;
	264	break;
	265	case SND_SOC_DAIFMT_DSP_A:
	266	iface \|= 0x0003;
	267	break;
	268	case SND_SOC_DAIFMT_DSP_B:
	269	iface \|= 0x0013;
	270	break;
	271	default:
	272	return -EINVAL;
	273	}
	274
	275	/* clock inversion */
	276	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	277	case SND_SOC_DAIFMT_NB_NF:
	278	break;
	279	case SND_SOC_DAIFMT_IB_IF:
	280	iface \|= 0x0090;
	281	break;
	282	case SND_SOC_DAIFMT_IB_NF:
	283	iface \|= 0x0080;
	284	break;
	285	case SND_SOC_DAIFMT_NB_IF:
	286	iface \|= 0x0010;
	287	break;
	288	default:
	289	return -EINVAL;
	290	}
	291
	292	/* set iface */
56fc4d2a	293	snd_soc_component_write(component, WM8711_IFACE, iface);
bd6d4177 MA	294	return 0;
	295	}
	296
56fc4d2a	297	static int wm8711_set_bias_level(struct snd_soc_component *component,
bd6d4177 MA	298	enum snd_soc_bias_level level)
bd6d4177 MA	299	{
56fc4d2a	300	struct wm8711_priv *wm8711 = snd_soc_component_get_drvdata(component);
6d75dfc3	301	u16 reg = snd_soc_component_read(component, WM8711_PWR) & 0xff7f;
bd6d4177 MA	302
	303	switch (level) {
	304	case SND_SOC_BIAS_ON:
56fc4d2a	305	snd_soc_component_write(component, WM8711_PWR, reg);
bd6d4177 MA	306	break;
	307	case SND_SOC_BIAS_PREPARE:
	308	break;
	309	case SND_SOC_BIAS_STANDBY:
56fc4d2a	310	if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
5aa5fa9f	311	regcache_sync(wm8711->regmap);
960622da	312
56fc4d2a	313	snd_soc_component_write(component, WM8711_PWR, reg \| 0x0040);
bd6d4177 MA	314	break;
bd6d4177 MA	315	case SND_SOC_BIAS_OFF:
56fc4d2a KM	316	snd_soc_component_write(component, WM8711_ACTIVE, 0x0);
56fc4d2a KM	317	snd_soc_component_write(component, WM8711_PWR, 0xffff);
bd6d4177 MA	318	break;
bd6d4177 MA	319	}
bd6d4177 MA	320	return 0;
	321	}
	322
431f7771	323	#define WM8711_RATES SNDRV_PCM_RATE_8000_96000
bd6d4177 MA	324
	325	#define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S20_3LE \|\
	326	SNDRV_PCM_FMTBIT_S24_LE)
	327
85e7652d	328	static const struct snd_soc_dai_ops wm8711_ops = {
bd6d4177 MA	329	.prepare = wm8711_pcm_prepare,
	330	.hw_params = wm8711_hw_params,
	331	.shutdown = wm8711_shutdown,
26d3c16e	332	.mute_stream = wm8711_mute,
bd6d4177 MA	333	.set_sysclk = wm8711_set_dai_sysclk,
bd6d4177 MA	334	.set_fmt = wm8711_set_dai_fmt,
26d3c16e	335	.no_capture_mute = 1,
bd6d4177 MA	336	};
bd6d4177 MA	337
f0fba2ad LG	338	static struct snd_soc_dai_driver wm8711_dai = {
f0fba2ad LG	339	.name = "wm8711-hifi",
bd6d4177 MA	340	.playback = {
	341	.stream_name = "Playback",
	342	.channels_min = 1,
	343	.channels_max = 2,
	344	.rates = WM8711_RATES,
431f7771 MB	345	.formats = WM8711_FORMATS,
431f7771 MB	346	},
bd6d4177 MA	347	.ops = &wm8711_ops,
bd6d4177 MA	348	};
bd6d4177	349
56fc4d2a	350	static int wm8711_probe(struct snd_soc_component *component)
bd6d4177	351	{
d434bc32	352	int ret;
bd6d4177	353
56fc4d2a	354	ret = wm8711_reset(component);
bd6d4177	355	if (ret < 0) {
56fc4d2a	356	dev_err(component->dev, "Failed to issue reset\n");
f0fba2ad	357	return ret;
bd6d4177	358	}
bd6d4177	359
318b0b8d	360	/* Latch the update bits */
56fc4d2a KM	361	snd_soc_component_update_bits(component, WM8711_LOUT1V, 0x0100, 0x0100);
56fc4d2a KM	362	snd_soc_component_update_bits(component, WM8711_ROUT1V, 0x0100, 0x0100);
318b0b8d	363
d97d2e35	364	return ret;
f0fba2ad	365
bd6d4177 MA	366	}
bd6d4177 MA	367
56fc4d2a KM	368	static const struct snd_soc_component_driver soc_component_dev_wm8711 = {
	369	.probe = wm8711_probe,
	370	.set_bias_level = wm8711_set_bias_level,
	371	.controls = wm8711_snd_controls,
	372	.num_controls = ARRAY_SIZE(wm8711_snd_controls),
	373	.dapm_widgets = wm8711_dapm_widgets,
	374	.num_dapm_widgets = ARRAY_SIZE(wm8711_dapm_widgets),
	375	.dapm_routes = wm8711_intercon,
	376	.num_dapm_routes = ARRAY_SIZE(wm8711_intercon),
	377	.suspend_bias_off = 1,
	378	.idle_bias_on = 1,
	379	.use_pmdown_time = 1,
	380	.endianness = 1,
	381	.non_legacy_dai_naming = 1,
f0fba2ad LG	382	};
f0fba2ad LG	383
1552c8f6 MB	384	static const struct of_device_id wm8711_of_match[] = {
	385	{ .compatible = "wlf,wm8711", },
	386	{ }
	387	};
	388	MODULE_DEVICE_TABLE(of, wm8711_of_match);
	389
5aa5fa9f MB	390	static const struct regmap_config wm8711_regmap = {
	391	.reg_bits = 7,
	392	.val_bits = 9,
	393	.max_register = WM8711_RESET,
	394
	395	.reg_defaults = wm8711_reg_defaults,
	396	.num_reg_defaults = ARRAY_SIZE(wm8711_reg_defaults),
	397	.cache_type = REGCACHE_RBTREE,
	398
	399	.volatile_reg = wm8711_volatile,
	400	};
	401
08aff8cd	402	#if defined(CONFIG_SPI_MASTER)
7a79e94e	403	static int wm8711_spi_probe(struct spi_device *spi)
08aff8cd	404	{
08aff8cd	405	struct wm8711_priv *wm8711;
f0fba2ad	406	int ret;
08aff8cd	407
e908ef40 MB	408	wm8711 = devm_kzalloc(&spi->dev, sizeof(struct wm8711_priv),
e908ef40 MB	409	GFP_KERNEL);
08aff8cd MB	410	if (wm8711 == NULL)
	411	return -ENOMEM;
	412
5aa5fa9f MB	413	wm8711->regmap = devm_regmap_init_spi(spi, &wm8711_regmap);
	414	if (IS_ERR(wm8711->regmap))
	415	return PTR_ERR(wm8711->regmap);
	416
f0fba2ad	417	spi_set_drvdata(spi, wm8711);
08aff8cd	418
56fc4d2a KM	419	ret = devm_snd_soc_register_component(&spi->dev,
56fc4d2a KM	420	&soc_component_dev_wm8711, &wm8711_dai, 1);
e908ef40	421
f0fba2ad	422	return ret;
08aff8cd MB	423	}
08aff8cd MB	424
08aff8cd MB	425	static struct spi_driver wm8711_spi_driver = {
08aff8cd MB	426	.driver = {
0473e61b	427	.name = "wm8711",
1552c8f6	428	.of_match_table = wm8711_of_match,
08aff8cd MB	429	},
08aff8cd MB	430	.probe = wm8711_spi_probe,
08aff8cd MB	431	};
	432	#endif /* CONFIG_SPI_MASTER */
	433
2309d675	434	#if IS_ENABLED(CONFIG_I2C)
7a79e94e BP	435	static int wm8711_i2c_probe(struct i2c_client *client,
7a79e94e BP	436	const struct i2c_device_id *id)
bd6d4177	437	{
bd6d4177	438	struct wm8711_priv *wm8711;
f0fba2ad	439	int ret;
bd6d4177	440
e908ef40 MB	441	wm8711 = devm_kzalloc(&client->dev, sizeof(struct wm8711_priv),
e908ef40 MB	442	GFP_KERNEL);
318b0b8d	443	if (wm8711 == NULL)
bd6d4177	444	return -ENOMEM;
bd6d4177	445
5aa5fa9f MB	446	wm8711->regmap = devm_regmap_init_i2c(client, &wm8711_regmap);
	447	if (IS_ERR(wm8711->regmap))
	448	return PTR_ERR(wm8711->regmap);
	449
f0fba2ad	450	i2c_set_clientdata(client, wm8711);
bd6d4177	451
56fc4d2a KM	452	ret = devm_snd_soc_register_component(&client->dev,
56fc4d2a KM	453	&soc_component_dev_wm8711, &wm8711_dai, 1);
e908ef40	454
f0fba2ad	455	return ret;
318b0b8d	456	}
bd6d4177	457
318b0b8d MB	458	static const struct i2c_device_id wm8711_i2c_id[] = {
	459	{ "wm8711", 0 },
	460	{ }
bd6d4177	461	};
318b0b8d MB	462	MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id);
	463
	464	static struct i2c_driver wm8711_i2c_driver = {
	465	.driver = {
0473e61b	466	.name = "wm8711",
1552c8f6	467	.of_match_table = wm8711_of_match,
318b0b8d MB	468	},
318b0b8d MB	469	.probe = wm8711_i2c_probe,
318b0b8d MB	470	.id_table = wm8711_i2c_id,
	471	};
	472	#endif
bd6d4177 MA	473
	474	static int __init wm8711_modinit(void)
	475	{
318b0b8d	476	int ret;
2309d675	477	#if IS_ENABLED(CONFIG_I2C)
318b0b8d MB	478	ret = i2c_add_driver(&wm8711_i2c_driver);
	479	if (ret != 0) {
	480	printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n",
	481	ret);
	482	}
08aff8cd MB	483	#endif
08aff8cd MB	484	#if defined(CONFIG_SPI_MASTER)
bb262767	485	ret = spi_register_driver(&wm8711_spi_driver);
08aff8cd	486	if (ret != 0) {
bb262767	487	printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n",
08aff8cd MB	488	ret);
08aff8cd MB	489	}
318b0b8d MB	490	#endif
318b0b8d MB	491	return 0;
bd6d4177 MA	492	}
	493	module_init(wm8711_modinit);
	494
	495	static void __exit wm8711_exit(void)
	496	{
2309d675	497	#if IS_ENABLED(CONFIG_I2C)
318b0b8d MB	498	i2c_del_driver(&wm8711_i2c_driver);
318b0b8d MB	499	#endif
08aff8cd	500	#if defined(CONFIG_SPI_MASTER)
bb262767	501	spi_unregister_driver(&wm8711_spi_driver);
08aff8cd	502	#endif
bd6d4177 MA	503	}
	504	module_exit(wm8711_exit);
	505
	506	MODULE_DESCRIPTION("ASoC WM8711 driver");
	507	MODULE_AUTHOR("Mike Arthur");
	508	MODULE_LICENSE("GPL");