[linux-2.6-block.git] / sound / soc / sunxi / sun8i-codec.c

/*
 * This driver supports the digital controls for the internal codec
 * found in Allwinner's A33 SoCs.
 *
 * (C) Copyright 2010-2016
 * Reuuimlla Technology Co., Ltd. <www.reuuimllatech.com>
 * huangxin <huangxin@Reuuimllatech.com>
 * Mylène Josserand <mylene.josserand@free-electrons.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>

#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#define SUN8I_SYSCLK_CTL				0x00c
#define SUN8I_SYSCLK_CTL_AIF1CLK_ENA			11
#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL		9
#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC			8
#define SUN8I_SYSCLK_CTL_SYSCLK_ENA			3
#define SUN8I_SYSCLK_CTL_SYSCLK_SRC			0
#define SUN8I_MOD_CLK_ENA				0x010
#define SUN8I_MOD_CLK_ENA_AIF1				15
#define SUN8I_MOD_CLK_ENA_ADC				3
#define SUN8I_MOD_CLK_ENA_DAC				2
#define SUN8I_MOD_RST_CTL				0x014
#define SUN8I_MOD_RST_CTL_AIF1				15
#define SUN8I_MOD_RST_CTL_ADC				3
#define SUN8I_MOD_RST_CTL_DAC				2
#define SUN8I_SYS_SR_CTRL				0x018
#define SUN8I_SYS_SR_CTRL_AIF1_FS			12
#define SUN8I_SYS_SR_CTRL_AIF2_FS			8
#define SUN8I_AIF1CLK_CTRL				0x040
#define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD		15
#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV		14
#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV		13
#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV		9
#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV		6
#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16		(1 << 6)
#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ		4
#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16		(1 << 4)
#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT		2
#define SUN8I_AIF1_ADCDAT_CTRL				0x044
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA		15
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA		14
#define SUN8I_AIF1_DACDAT_CTRL				0x048
#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA		15
#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA		14
#define SUN8I_AIF1_MXR_SRC				0x04c
#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L	15
#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL	14
#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL		13
#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR	12
#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R	11
#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR	10
#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR		9
#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL	8
#define SUN8I_ADC_DIG_CTRL				0x100
#define SUN8I_ADC_DIG_CTRL_ENDA			15
#define SUN8I_ADC_DIG_CTRL_ADOUT_DTS			2
#define SUN8I_ADC_DIG_CTRL_ADOUT_DLY			1
#define SUN8I_DAC_DIG_CTRL				0x120
#define SUN8I_DAC_DIG_CTRL_ENDA			15
#define SUN8I_DAC_MXR_SRC				0x130
#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L	15
#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L	14
#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL	13
#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL		12
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R	11
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R	10
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR	9
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR		8

#define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK		GENMASK(15, 12)
#define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK		GENMASK(11, 8)
#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK	GENMASK(5, 4)
#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK	GENMASK(8, 6)
#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK	GENMASK(12, 9)

struct sun8i_codec {
	struct device	*dev;
	struct regmap	*regmap;
	struct clk	*clk_module;
	struct clk	*clk_bus;
};

static int sun8i_codec_runtime_resume(struct device *dev)
{
	struct sun8i_codec *scodec = dev_get_drvdata(dev);
	int ret;

	ret = clk_prepare_enable(scodec->clk_module);
	if (ret) {
		dev_err(dev, "Failed to enable the module clock\n");
		return ret;
	}

	ret = clk_prepare_enable(scodec->clk_bus);
	if (ret) {
		dev_err(dev, "Failed to enable the bus clock\n");
		goto err_disable_modclk;
	}

	regcache_cache_only(scodec->regmap, false);

	ret = regcache_sync(scodec->regmap);
	if (ret) {
		dev_err(dev, "Failed to sync regmap cache\n");
		goto err_disable_clk;
	}

	return 0;

err_disable_clk:
	clk_disable_unprepare(scodec->clk_bus);

err_disable_modclk:
	clk_disable_unprepare(scodec->clk_module);

	return ret;
}

static int sun8i_codec_runtime_suspend(struct device *dev)
{
	struct sun8i_codec *scodec = dev_get_drvdata(dev);

	regcache_cache_only(scodec->regmap, true);
	regcache_mark_dirty(scodec->regmap);

	clk_disable_unprepare(scodec->clk_module);
	clk_disable_unprepare(scodec->clk_bus);

	return 0;
}

static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
{
	unsigned int rate = params_rate(params);

	switch (rate) {
	case 8000:
	case 7350:
		return 0x0;
	case 11025:
		return 0x1;
	case 12000:
		return 0x2;
	case 16000:
		return 0x3;
	case 22050:
		return 0x4;
	case 24000:
		return 0x5;
	case 32000:
		return 0x6;
	case 44100:
		return 0x7;
	case 48000:
		return 0x8;
	case 96000:
		return 0x9;
	case 192000:
		return 0xa;
	default:
		return -EINVAL;
	}
}

static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
	u32 value;

	/* clock masters */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */
		value = 0x1;
		break;
	case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */
		value = 0x0;
		break;
	default:
		return -EINVAL;
	}
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),
			   value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF: /* Normal */
		value = 0x0;
		break;
	case SND_SOC_DAIFMT_IB_IF: /* Inversion */
		value = 0x1;
		break;
	default:
		return -EINVAL;
	}
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV),
			   value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV);

	/*
	 * It appears that the DAI and the codec don't share the same
	 * polarity for the LRCK signal when they mean 'normal' and
	 * 'inverted' in the datasheet.
	 *
	 * Since the DAI here is our regular i2s driver that have been
	 * tested with way more codecs than just this one, it means
	 * that the codec probably gets it backward, and we have to
	 * invert the value here.
	 */
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV),
			   !value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV);

	/* DAI format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		value = 0x0;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		value = 0x1;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		value = 0x2;
		break;
	case SND_SOC_DAIFMT_DSP_A:
	case SND_SOC_DAIFMT_DSP_B:
		value = 0x3;
		break;
	default:
		return -EINVAL;
	}
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   BIT(SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT),
			   value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);

	return 0;
}

struct sun8i_codec_clk_div {
	u8	div;
	u8	val;
};

static const struct sun8i_codec_clk_div sun8i_codec_bclk_div[] = {
	{ .div = 1,	.val = 0 },
	{ .div = 2,	.val = 1 },
	{ .div = 4,	.val = 2 },
	{ .div = 6,	.val = 3 },
	{ .div = 8,	.val = 4 },
	{ .div = 12,	.val = 5 },
	{ .div = 16,	.val = 6 },
	{ .div = 24,	.val = 7 },
	{ .div = 32,	.val = 8 },
	{ .div = 48,	.val = 9 },
	{ .div = 64,	.val = 10 },
	{ .div = 96,	.val = 11 },
	{ .div = 128,	.val = 12 },
	{ .div = 192,	.val = 13 },
};

static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec,
				   unsigned int rate,
				   unsigned int word_size)
{
	unsigned long clk_rate = clk_get_rate(scodec->clk_module);
	unsigned int div = clk_rate / rate / word_size / 2;
	unsigned int best_val = 0, best_diff = ~0;
	int i;

	for (i = 0; i < ARRAY_SIZE(sun8i_codec_bclk_div); i++) {
		const struct sun8i_codec_clk_div *bdiv = &sun8i_codec_bclk_div[i];
		unsigned int diff = abs(bdiv->div - div);

		if (diff < best_diff) {
			best_diff = diff;
			best_val = bdiv->val;
		}
	}

	return best_val;
}

static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{
	struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
	int sample_rate;
	u8 bclk_div;

	/*
	 * The CPU DAI handles only a sample of 16 bits. Configure the
	 * codec to handle this type of sample resolution.
	 */
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK,
			   SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16);

	bclk_div = sun8i_codec_get_bclk_div(scodec, params_rate(params), 16);
	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK,
			   bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV);

	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
			   SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK,
			   SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16);

	sample_rate = sun8i_codec_get_hw_rate(params);
	if (sample_rate < 0)
		return sample_rate;

	regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
			   SUN8I_SYS_SR_CTRL_AIF1_FS_MASK,
			   sample_rate << SUN8I_SYS_SR_CTRL_AIF1_FS);
	regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
			   SUN8I_SYS_SR_CTRL_AIF2_FS_MASK,
			   sample_rate << SUN8I_SYS_SR_CTRL_AIF2_FS);

	return 0;
}

static const struct snd_kcontrol_new sun8i_dac_mixer_controls[] = {
	SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital DAC Playback Switch",
			SUN8I_DAC_MXR_SRC,
			SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L,
			SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R, 1, 0),
	SOC_DAPM_DOUBLE("AIF1 Slot 1 Digital DAC Playback Switch",
			SUN8I_DAC_MXR_SRC,
			SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L,
			SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R, 1, 0),
	SOC_DAPM_DOUBLE("AIF2 Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
			SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL,
			SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR, 1, 0),
	SOC_DAPM_DOUBLE("ADC Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
			SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL,
			SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR, 1, 0),
};

static const struct snd_kcontrol_new sun8i_input_mixer_controls[] = {
	SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital ADC Capture Switch",
			SUN8I_AIF1_MXR_SRC,
			SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L,
			SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R, 1, 0),
	SOC_DAPM_DOUBLE("AIF2 Digital ADC Capture Switch", SUN8I_AIF1_MXR_SRC,
			SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL,
			SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR, 1, 0),
	SOC_DAPM_DOUBLE("AIF1 Data Digital ADC Capture Switch",
			SUN8I_AIF1_MXR_SRC,
			SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL,
			SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR, 1, 0),
	SOC_DAPM_DOUBLE("AIF2 Inv Digital ADC Capture Switch",
			SUN8I_AIF1_MXR_SRC,
			SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR,
			SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL, 1, 0),
};

static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = {
	/* Digital parts of the DACs and ADC */
	SND_SOC_DAPM_SUPPLY("DAC", SUN8I_DAC_DIG_CTRL, SUN8I_DAC_DIG_CTRL_ENDA,
			    0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC", SUN8I_ADC_DIG_CTRL, SUN8I_ADC_DIG_CTRL_ENDA,
			    0, NULL, 0),

	/* Analog DAC AIF */
	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left", "Playback", 0,
			    SUN8I_AIF1_DACDAT_CTRL,
			    SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA, 0),
	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right", "Playback", 0,
			    SUN8I_AIF1_DACDAT_CTRL,
			    SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA, 0),

	/* Analog ADC AIF */
	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left ADC", "Capture", 0,
			    SUN8I_AIF1_ADCDAT_CTRL,
			    SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA, 0),
	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right ADC", "Capture", 0,
			    SUN8I_AIF1_ADCDAT_CTRL,
			    SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA, 0),

	/* DAC and ADC Mixers */
	SOC_MIXER_ARRAY("Left Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
			sun8i_dac_mixer_controls),
	SOC_MIXER_ARRAY("Right Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
			sun8i_dac_mixer_controls),
	SOC_MIXER_ARRAY("Left Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
			sun8i_input_mixer_controls),
	SOC_MIXER_ARRAY("Right Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
			sun8i_input_mixer_controls),

	/* Clocks */
	SND_SOC_DAPM_SUPPLY("MODCLK AFI1", SUN8I_MOD_CLK_ENA,
			    SUN8I_MOD_CLK_ENA_AIF1, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("MODCLK DAC", SUN8I_MOD_CLK_ENA,
			    SUN8I_MOD_CLK_ENA_DAC, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("MODCLK ADC", SUN8I_MOD_CLK_ENA,
			    SUN8I_MOD_CLK_ENA_ADC, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("AIF1", SUN8I_SYSCLK_CTL,
			    SUN8I_SYSCLK_CTL_AIF1CLK_ENA, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("SYSCLK", SUN8I_SYSCLK_CTL,
			    SUN8I_SYSCLK_CTL_SYSCLK_ENA, 0, NULL, 0),

	SND_SOC_DAPM_SUPPLY("AIF1 PLL", SUN8I_SYSCLK_CTL,
			    SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL, 0, NULL, 0),
	/* Inversion as 0=AIF1, 1=AIF2 */
	SND_SOC_DAPM_SUPPLY("SYSCLK AIF1", SUN8I_SYSCLK_CTL,
			    SUN8I_SYSCLK_CTL_SYSCLK_SRC, 1, NULL, 0),

	/* Module reset */
	SND_SOC_DAPM_SUPPLY("RST AIF1", SUN8I_MOD_RST_CTL,
			    SUN8I_MOD_RST_CTL_AIF1, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("RST DAC", SUN8I_MOD_RST_CTL,
			    SUN8I_MOD_RST_CTL_DAC, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("RST ADC", SUN8I_MOD_RST_CTL,
			    SUN8I_MOD_RST_CTL_ADC, 0, NULL, 0),

	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Mic", NULL),

};

static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = {
	/* Clock Routes */
	{ "AIF1", NULL, "SYSCLK AIF1" },
	{ "AIF1 PLL", NULL, "AIF1" },
	{ "RST AIF1", NULL, "AIF1 PLL" },
	{ "MODCLK AFI1", NULL, "RST AIF1" },
	{ "DAC", NULL, "MODCLK AFI1" },
	{ "ADC", NULL, "MODCLK AFI1" },

	{ "RST DAC", NULL, "SYSCLK" },
	{ "MODCLK DAC", NULL, "RST DAC" },
	{ "DAC", NULL, "MODCLK DAC" },

	{ "RST ADC", NULL, "SYSCLK" },
	{ "MODCLK ADC", NULL, "RST ADC" },
	{ "ADC", NULL, "MODCLK ADC" },

	/* DAC Routes */
	{ "AIF1 Slot 0 Right", NULL, "DAC" },
	{ "AIF1 Slot 0 Left", NULL, "DAC" },

	/* DAC Mixer Routes */
	{ "Left Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
	  "AIF1 Slot 0 Left"},
	{ "Right Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
	  "AIF1 Slot 0 Right"},

	/* ADC routes */
	{ "Left Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
	  "AIF1 Slot 0 Left ADC" },
	{ "Right Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
	  "AIF1 Slot 0 Right ADC" },
};

static const struct snd_soc_dai_ops sun8i_codec_dai_ops = {
	.hw_params = sun8i_codec_hw_params,
	.set_fmt = sun8i_set_fmt,
};

static struct snd_soc_dai_driver sun8i_codec_dai = {
	.name = "sun8i",
	/* playback capabilities */
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	/* capture capabilities */
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
		.sig_bits = 24,
	},
	/* pcm operations */
	.ops = &sun8i_codec_dai_ops,
};

static const struct snd_soc_component_driver sun8i_soc_component = {
	.dapm_widgets		= sun8i_codec_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(sun8i_codec_dapm_widgets),
	.dapm_routes		= sun8i_codec_dapm_routes,
	.num_dapm_routes	= ARRAY_SIZE(sun8i_codec_dapm_routes),
	.idle_bias_on		= 1,
	.use_pmdown_time	= 1,
	.endianness		= 1,
	.non_legacy_dai_naming	= 1,
};

static const struct regmap_config sun8i_codec_regmap_config = {
	.reg_bits	= 32,
	.reg_stride	= 4,
	.val_bits	= 32,
	.max_register	= SUN8I_DAC_MXR_SRC,

	.cache_type	= REGCACHE_FLAT,
};

static int sun8i_codec_probe(struct platform_device *pdev)
{
	struct resource *res_base;
	struct sun8i_codec *scodec;
	void __iomem *base;
	int ret;

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

	scodec->dev = &pdev->dev;

	scodec->clk_module = devm_clk_get(&pdev->dev, "mod");
	if (IS_ERR(scodec->clk_module)) {
		dev_err(&pdev->dev, "Failed to get the module clock\n");
		return PTR_ERR(scodec->clk_module);
	}

	scodec->clk_bus = devm_clk_get(&pdev->dev, "bus");
	if (IS_ERR(scodec->clk_bus)) {
		dev_err(&pdev->dev, "Failed to get the bus clock\n");
		return PTR_ERR(scodec->clk_bus);
	}

	res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	base = devm_ioremap_resource(&pdev->dev, res_base);
	if (IS_ERR(base)) {
		dev_err(&pdev->dev, "Failed to map the registers\n");
		return PTR_ERR(base);
	}

	scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
					       &sun8i_codec_regmap_config);
	if (IS_ERR(scodec->regmap)) {
		dev_err(&pdev->dev, "Failed to create our regmap\n");
		return PTR_ERR(scodec->regmap);
	}

	platform_set_drvdata(pdev, scodec);

	pm_runtime_enable(&pdev->dev);
	if (!pm_runtime_enabled(&pdev->dev)) {
		ret = sun8i_codec_runtime_resume(&pdev->dev);
		if (ret)
			goto err_pm_disable;
	}

	ret = devm_snd_soc_register_component(&pdev->dev, &sun8i_soc_component,
				     &sun8i_codec_dai, 1);
	if (ret) {
		dev_err(&pdev->dev, "Failed to register codec\n");
		goto err_suspend;
	}

	return ret;

err_suspend:
	if (!pm_runtime_status_suspended(&pdev->dev))
		sun8i_codec_runtime_suspend(&pdev->dev);

err_pm_disable:
	pm_runtime_disable(&pdev->dev);

	return ret;
}

static int sun8i_codec_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct sun8i_codec *scodec = snd_soc_card_get_drvdata(card);

	pm_runtime_disable(&pdev->dev);
	if (!pm_runtime_status_suspended(&pdev->dev))
		sun8i_codec_runtime_suspend(&pdev->dev);

	clk_disable_unprepare(scodec->clk_module);
	clk_disable_unprepare(scodec->clk_bus);

	return 0;
}

static const struct of_device_id sun8i_codec_of_match[] = {
	{ .compatible = "allwinner,sun8i-a33-codec" },
	{}
};
MODULE_DEVICE_TABLE(of, sun8i_codec_of_match);

static const struct dev_pm_ops sun8i_codec_pm_ops = {
	SET_RUNTIME_PM_OPS(sun8i_codec_runtime_suspend,
			   sun8i_codec_runtime_resume, NULL)
};

static struct platform_driver sun8i_codec_driver = {
	.driver = {
		.name = "sun8i-codec",
		.of_match_table = sun8i_codec_of_match,
		.pm = &sun8i_codec_pm_ops,
	},
	.probe = sun8i_codec_probe,
	.remove = sun8i_codec_remove,
};
module_platform_driver(sun8i_codec_driver);

MODULE_DESCRIPTION("Allwinner A33 (sun8i) codec driver");
MODULE_AUTHOR("Mylène Josserand <mylene.josserand@free-electrons.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:sun8i-codec");
Commit	Line	Data
36c68493 MJ	1	/*
	2	* This driver supports the digital controls for the internal codec
	3	* found in Allwinner's A33 SoCs.
	4	*
	5	* (C) Copyright 2010-2016
	6	* Reuuimlla Technology Co., Ltd. <www.reuuimllatech.com>
	7	* huangxin <huangxin@Reuuimllatech.com>
	8	* Mylène Josserand <mylene.josserand@free-electrons.com>
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/delay.h>
	23	#include <linux/clk.h>
	24	#include <linux/io.h>
	25	#include <linux/pm_runtime.h>
	26	#include <linux/regmap.h>
	27
	28	#include <sound/pcm_params.h>
	29	#include <sound/soc.h>
	30	#include <sound/soc-dapm.h>
	31
	32	#define SUN8I_SYSCLK_CTL 0x00c
	33	#define SUN8I_SYSCLK_CTL_AIF1CLK_ENA 11
	34	#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL 9
	35	#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC 8
	36	#define SUN8I_SYSCLK_CTL_SYSCLK_ENA 3
	37	#define SUN8I_SYSCLK_CTL_SYSCLK_SRC 0
	38	#define SUN8I_MOD_CLK_ENA 0x010
	39	#define SUN8I_MOD_CLK_ENA_AIF1 15
eda85d1f	40	#define SUN8I_MOD_CLK_ENA_ADC 3
36c68493 MJ	41	#define SUN8I_MOD_CLK_ENA_DAC 2
	42	#define SUN8I_MOD_RST_CTL 0x014
	43	#define SUN8I_MOD_RST_CTL_AIF1 15
eda85d1f	44	#define SUN8I_MOD_RST_CTL_ADC 3
36c68493 MJ	45	#define SUN8I_MOD_RST_CTL_DAC 2
	46	#define SUN8I_SYS_SR_CTRL 0x018
	47	#define SUN8I_SYS_SR_CTRL_AIF1_FS 12
	48	#define SUN8I_SYS_SR_CTRL_AIF2_FS 8
	49	#define SUN8I_AIF1CLK_CTRL 0x040
	50	#define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15
	51	#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14
	52	#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13
	53	#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9
	54	#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6
	55	#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16 (1 << 6)
	56	#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4
	57	#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4)
	58	#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2
eda85d1f MJ	59	#define SUN8I_AIF1_ADCDAT_CTRL 0x044
	60	#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA 15
	61	#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA 14
36c68493 MJ	62	#define SUN8I_AIF1_DACDAT_CTRL 0x048
	63	#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA 15
	64	#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA 14
eda85d1f MJ	65	#define SUN8I_AIF1_MXR_SRC 0x04c
	66	#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L 15
	67	#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL 14
	68	#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL 13
	69	#define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR 12
	70	#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R 11
	71	#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR 10
	72	#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR 9
	73	#define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL 8
	74	#define SUN8I_ADC_DIG_CTRL 0x100
	75	#define SUN8I_ADC_DIG_CTRL_ENDA 15
	76	#define SUN8I_ADC_DIG_CTRL_ADOUT_DTS 2
	77	#define SUN8I_ADC_DIG_CTRL_ADOUT_DLY 1
36c68493 MJ	78	#define SUN8I_DAC_DIG_CTRL 0x120
	79	#define SUN8I_DAC_DIG_CTRL_ENDA 15
	80	#define SUN8I_DAC_MXR_SRC 0x130
	81	#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L 15
	82	#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L 14
	83	#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL 13
	84	#define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL 12
	85	#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R 11
	86	#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10
	87	#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9
	88	#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8
	89
	90	#define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12)
	91	#define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8)
	92	#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4)
	93	#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6)
316b7758	94	#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9)
36c68493 MJ	95
	96	struct sun8i_codec {
	97	struct device *dev;
	98	struct regmap *regmap;
	99	struct clk *clk_module;
	100	struct clk *clk_bus;
	101	};
	102
	103	static int sun8i_codec_runtime_resume(struct device *dev)
	104	{
	105	struct sun8i_codec *scodec = dev_get_drvdata(dev);
	106	int ret;
	107
	108	ret = clk_prepare_enable(scodec->clk_module);
	109	if (ret) {
	110	dev_err(dev, "Failed to enable the module clock\n");
	111	return ret;
	112	}
	113
	114	ret = clk_prepare_enable(scodec->clk_bus);
	115	if (ret) {
	116	dev_err(dev, "Failed to enable the bus clock\n");
	117	goto err_disable_modclk;
	118	}
	119
	120	regcache_cache_only(scodec->regmap, false);
	121
	122	ret = regcache_sync(scodec->regmap);
	123	if (ret) {
	124	dev_err(dev, "Failed to sync regmap cache\n");
	125	goto err_disable_clk;
	126	}
	127
	128	return 0;
	129
	130	err_disable_clk:
	131	clk_disable_unprepare(scodec->clk_bus);
	132
	133	err_disable_modclk:
	134	clk_disable_unprepare(scodec->clk_module);
	135
	136	return ret;
	137	}
	138
	139	static int sun8i_codec_runtime_suspend(struct device *dev)
	140	{
	141	struct sun8i_codec *scodec = dev_get_drvdata(dev);
	142
	143	regcache_cache_only(scodec->regmap, true);
	144	regcache_mark_dirty(scodec->regmap);
	145
	146	clk_disable_unprepare(scodec->clk_module);
	147	clk_disable_unprepare(scodec->clk_bus);
	148
	149	return 0;
	150	}
	151
	152	static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
	153	{
	154	unsigned int rate = params_rate(params);
	155
	156	switch (rate) {
	157	case 8000:
	158	case 7350:
159	return 0x0;
160	case 11025:
161	return 0x1;
162	case 12000:
163	return 0x2;
164	case 16000:
165	return 0x3;
166	case 22050:
167	return 0x4;
168	case 24000:
169	return 0x5;
170	case 32000:
171	return 0x6;
172	case 44100:
173	return 0x7;
174	case 48000:
175	return 0x8;
176	case 96000:
177	return 0x9;
178	case 192000:
179	return 0xa;
180	default:
181	return -EINVAL;
182	}
183	}
184
185	static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
186	{
7ec9b872	187	struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
36c68493 MJ	188	u32 value;
	189
	190	/* clock masters */
	191	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
560bfe77 MR	192	case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */
560bfe77 MR	193	value = 0x1;
36c68493	194	break;
560bfe77 MR	195	case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */
560bfe77 MR	196	value = 0x0;
36c68493 MJ	197	break;
	198	default:
	199	return -EINVAL;
	200	}
	201	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	202	BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),
	203	value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);
	204
	205	/* clock inversion */
	206	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	207	case SND_SOC_DAIFMT_NB_NF: /* Normal */
	208	value = 0x0;
	209	break;
	210	case SND_SOC_DAIFMT_IB_IF: /* Inversion */
	211	value = 0x1;
	212	break;
	213	default:
	214	return -EINVAL;
	215	}
	216	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	217	BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV),
	218	value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV);
e7b8a6d3 MR	219
	220	/*
	221	* It appears that the DAI and the codec don't share the same
	222	* polarity for the LRCK signal when they mean 'normal' and
	223	* 'inverted' in the datasheet.
	224	*
	225	* Since the DAI here is our regular i2s driver that have been
	226	* tested with way more codecs than just this one, it means
	227	* that the codec probably gets it backward, and we have to
	228	* invert the value here.
	229	*/
36c68493 MJ	230	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
36c68493 MJ	231	BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV),
18c1bf35	232	!value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV);
36c68493 MJ	233
	234	/* DAI format */
	235	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	236	case SND_SOC_DAIFMT_I2S:
	237	value = 0x0;
	238	break;
	239	case SND_SOC_DAIFMT_LEFT_J:
	240	value = 0x1;
	241	break;
	242	case SND_SOC_DAIFMT_RIGHT_J:
	243	value = 0x2;
	244	break;
	245	case SND_SOC_DAIFMT_DSP_A:
	246	case SND_SOC_DAIFMT_DSP_B:
	247	value = 0x3;
	248	break;
	249	default:
	250	return -EINVAL;
	251	}
	252	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	253	BIT(SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT),
	254	value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);
	255
	256	return 0;
	257	}
	258
316b7758 MR	259	struct sun8i_codec_clk_div {
	260	u8 div;
	261	u8 val;
	262	};
	263
	264	static const struct sun8i_codec_clk_div sun8i_codec_bclk_div[] = {
	265	{ .div = 1, .val = 0 },
	266	{ .div = 2, .val = 1 },
	267	{ .div = 4, .val = 2 },
	268	{ .div = 6, .val = 3 },
	269	{ .div = 8, .val = 4 },
	270	{ .div = 12, .val = 5 },
	271	{ .div = 16, .val = 6 },
	272	{ .div = 24, .val = 7 },
	273	{ .div = 32, .val = 8 },
	274	{ .div = 48, .val = 9 },
	275	{ .div = 64, .val = 10 },
	276	{ .div = 96, .val = 11 },
	277	{ .div = 128, .val = 12 },
	278	{ .div = 192, .val = 13 },
	279	};
	280
	281	static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec,
	282	unsigned int rate,
	283	unsigned int word_size)
	284	{
	285	unsigned long clk_rate = clk_get_rate(scodec->clk_module);
	286	unsigned int div = clk_rate / rate / word_size / 2;
	287	unsigned int best_val = 0, best_diff = ~0;
	288	int i;
	289
	290	for (i = 0; i < ARRAY_SIZE(sun8i_codec_bclk_div); i++) {
	291	const struct sun8i_codec_clk_div *bdiv = &sun8i_codec_bclk_div[i];
	292	unsigned int diff = abs(bdiv->div - div);
	293
	294	if (diff < best_diff) {
	295	best_diff = diff;
	296	best_val = bdiv->val;
	297	}
	298	}
	299
	300	return best_val;
	301	}
	302
36c68493 MJ	303	static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
	304	struct snd_pcm_hw_params *params,
	305	struct snd_soc_dai *dai)
	306	{
7ec9b872	307	struct sun8i_codec *scodec = snd_soc_component_get_drvdata(dai->component);
36c68493	308	int sample_rate;
316b7758	309	u8 bclk_div;
36c68493 MJ	310
	311	/*
	312	* The CPU DAI handles only a sample of 16 bits. Configure the
	313	* codec to handle this type of sample resolution.
	314	*/
	315	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	316	SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK,
	317	SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16);
	318
316b7758 MR	319	bclk_div = sun8i_codec_get_bclk_div(scodec, params_rate(params), 16);
	320	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	321	SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK,
	322	bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV);
	323
36c68493 MJ	324	regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
	325	SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK,
	326	SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16);
	327
	328	sample_rate = sun8i_codec_get_hw_rate(params);
	329	if (sample_rate < 0)
	330	return sample_rate;
	331
	332	regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
	333	SUN8I_SYS_SR_CTRL_AIF1_FS_MASK,
	334	sample_rate << SUN8I_SYS_SR_CTRL_AIF1_FS);
	335	regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL,
	336	SUN8I_SYS_SR_CTRL_AIF2_FS_MASK,
	337	sample_rate << SUN8I_SYS_SR_CTRL_AIF2_FS);
	338
	339	return 0;
	340	}
	341
ca14da6e MJ	342	static const struct snd_kcontrol_new sun8i_dac_mixer_controls[] = {
	343	SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital DAC Playback Switch",
	344	SUN8I_DAC_MXR_SRC,
	345	SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L,
36c68493	346	SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R, 1, 0),
ca14da6e MJ	347	SOC_DAPM_DOUBLE("AIF1 Slot 1 Digital DAC Playback Switch",
	348	SUN8I_DAC_MXR_SRC,
	349	SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L,
36c68493	350	SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R, 1, 0),
ca14da6e MJ	351	SOC_DAPM_DOUBLE("AIF2 Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
ca14da6e MJ	352	SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL,
36c68493	353	SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR, 1, 0),
ca14da6e MJ	354	SOC_DAPM_DOUBLE("ADC Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC,
ca14da6e MJ	355	SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL,
36c68493 MJ	356	SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR, 1, 0),
	357	};
	358
eda85d1f MJ	359	static const struct snd_kcontrol_new sun8i_input_mixer_controls[] = {
	360	SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital ADC Capture Switch",
	361	SUN8I_AIF1_MXR_SRC,
	362	SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L,
	363	SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R, 1, 0),
	364	SOC_DAPM_DOUBLE("AIF2 Digital ADC Capture Switch", SUN8I_AIF1_MXR_SRC,
	365	SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL,
	366	SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR, 1, 0),
	367	SOC_DAPM_DOUBLE("AIF1 Data Digital ADC Capture Switch",
	368	SUN8I_AIF1_MXR_SRC,
	369	SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL,
	370	SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR, 1, 0),
	371	SOC_DAPM_DOUBLE("AIF2 Inv Digital ADC Capture Switch",
	372	SUN8I_AIF1_MXR_SRC,
	373	SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR,
	374	SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL, 1, 0),
	375	};
	376
36c68493	377	static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = {
eda85d1f	378	/* Digital parts of the DACs and ADC */
36c68493 MJ	379	SND_SOC_DAPM_SUPPLY("DAC", SUN8I_DAC_DIG_CTRL, SUN8I_DAC_DIG_CTRL_ENDA,
36c68493 MJ	380	0, NULL, 0),
eda85d1f MJ	381	SND_SOC_DAPM_SUPPLY("ADC", SUN8I_ADC_DIG_CTRL, SUN8I_ADC_DIG_CTRL_ENDA,
eda85d1f MJ	382	0, NULL, 0),
36c68493	383
9123aa86 MJ	384	/* Analog DAC AIF */
	385	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left", "Playback", 0,
	386	SUN8I_AIF1_DACDAT_CTRL,
	387	SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA, 0),
	388	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right", "Playback", 0,
	389	SUN8I_AIF1_DACDAT_CTRL,
	390	SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA, 0),
36c68493	391
eda85d1f MJ	392	/* Analog ADC AIF */
	393	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left ADC", "Capture", 0,
	394	SUN8I_AIF1_ADCDAT_CTRL,
	395	SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA, 0),
	396	SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right ADC", "Capture", 0,
	397	SUN8I_AIF1_ADCDAT_CTRL,
	398	SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA, 0),
	399
	400	/* DAC and ADC Mixers */
fa22ca4f MJ	401	SOC_MIXER_ARRAY("Left Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
	402	sun8i_dac_mixer_controls),
	403	SOC_MIXER_ARRAY("Right Digital DAC Mixer", SND_SOC_NOPM, 0, 0,
	404	sun8i_dac_mixer_controls),
eda85d1f MJ	405	SOC_MIXER_ARRAY("Left Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
	406	sun8i_input_mixer_controls),
	407	SOC_MIXER_ARRAY("Right Digital ADC Mixer", SND_SOC_NOPM, 0, 0,
	408	sun8i_input_mixer_controls),
36c68493 MJ	409
	410	/* Clocks */
	411	SND_SOC_DAPM_SUPPLY("MODCLK AFI1", SUN8I_MOD_CLK_ENA,
	412	SUN8I_MOD_CLK_ENA_AIF1, 0, NULL, 0),
	413	SND_SOC_DAPM_SUPPLY("MODCLK DAC", SUN8I_MOD_CLK_ENA,
	414	SUN8I_MOD_CLK_ENA_DAC, 0, NULL, 0),
eda85d1f MJ	415	SND_SOC_DAPM_SUPPLY("MODCLK ADC", SUN8I_MOD_CLK_ENA,
eda85d1f MJ	416	SUN8I_MOD_CLK_ENA_ADC, 0, NULL, 0),
36c68493 MJ	417	SND_SOC_DAPM_SUPPLY("AIF1", SUN8I_SYSCLK_CTL,
	418	SUN8I_SYSCLK_CTL_AIF1CLK_ENA, 0, NULL, 0),
	419	SND_SOC_DAPM_SUPPLY("SYSCLK", SUN8I_SYSCLK_CTL,
	420	SUN8I_SYSCLK_CTL_SYSCLK_ENA, 0, NULL, 0),
	421
	422	SND_SOC_DAPM_SUPPLY("AIF1 PLL", SUN8I_SYSCLK_CTL,
	423	SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL, 0, NULL, 0),
	424	/* Inversion as 0=AIF1, 1=AIF2 */
	425	SND_SOC_DAPM_SUPPLY("SYSCLK AIF1", SUN8I_SYSCLK_CTL,
	426	SUN8I_SYSCLK_CTL_SYSCLK_SRC, 1, NULL, 0),
	427
	428	/* Module reset */
	429	SND_SOC_DAPM_SUPPLY("RST AIF1", SUN8I_MOD_RST_CTL,
	430	SUN8I_MOD_RST_CTL_AIF1, 0, NULL, 0),
	431	SND_SOC_DAPM_SUPPLY("RST DAC", SUN8I_MOD_RST_CTL,
	432	SUN8I_MOD_RST_CTL_DAC, 0, NULL, 0),
eda85d1f MJ	433	SND_SOC_DAPM_SUPPLY("RST ADC", SUN8I_MOD_RST_CTL,
	434	SUN8I_MOD_RST_CTL_ADC, 0, NULL, 0),
	435
	436	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	437	SND_SOC_DAPM_MIC("Mic", NULL),
	438
36c68493 MJ	439	};
	440
	441	static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = {
	442	/* Clock Routes */
	443	{ "AIF1", NULL, "SYSCLK AIF1" },
	444	{ "AIF1 PLL", NULL, "AIF1" },
	445	{ "RST AIF1", NULL, "AIF1 PLL" },
	446	{ "MODCLK AFI1", NULL, "RST AIF1" },
	447	{ "DAC", NULL, "MODCLK AFI1" },
eda85d1f	448	{ "ADC", NULL, "MODCLK AFI1" },
36c68493 MJ	449
	450	{ "RST DAC", NULL, "SYSCLK" },
	451	{ "MODCLK DAC", NULL, "RST DAC" },
	452	{ "DAC", NULL, "MODCLK DAC" },
	453
eda85d1f MJ	454	{ "RST ADC", NULL, "SYSCLK" },
	455	{ "MODCLK ADC", NULL, "RST ADC" },
	456	{ "ADC", NULL, "MODCLK ADC" },
	457
36c68493	458	/* DAC Routes */
9123aa86 MJ	459	{ "AIF1 Slot 0 Right", NULL, "DAC" },
9123aa86 MJ	460	{ "AIF1 Slot 0 Left", NULL, "DAC" },
36c68493 MJ	461
36c68493 MJ	462	/* DAC Mixer Routes */
ca14da6e	463	{ "Left Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
9123aa86	464	"AIF1 Slot 0 Left"},
80405d44	465	{ "Right Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch",
9123aa86	466	"AIF1 Slot 0 Right"},
eda85d1f MJ	467
	468	/* ADC routes */
	469	{ "Left Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
	470	"AIF1 Slot 0 Left ADC" },
	471	{ "Right Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch",
	472	"AIF1 Slot 0 Right ADC" },
36c68493 MJ	473	};
36c68493 MJ	474
fe49cd98	475	static const struct snd_soc_dai_ops sun8i_codec_dai_ops = {
36c68493 MJ	476	.hw_params = sun8i_codec_hw_params,
	477	.set_fmt = sun8i_set_fmt,
	478	};
	479
	480	static struct snd_soc_dai_driver sun8i_codec_dai = {
	481	.name = "sun8i",
	482	/* playback capabilities */
	483	.playback = {
	484	.stream_name = "Playback",
	485	.channels_min = 1,
	486	.channels_max = 2,
	487	.rates = SNDRV_PCM_RATE_8000_192000,
	488	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	489	},
eda85d1f MJ	490	/* capture capabilities */
	491	.capture = {
	492	.stream_name = "Capture",
	493	.channels_min = 1,
	494	.channels_max = 2,
	495	.rates = SNDRV_PCM_RATE_8000_192000,
	496	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	497	.sig_bits = 24,
	498	},
36c68493 MJ	499	/* pcm operations */
	500	.ops = &sun8i_codec_dai_ops,
	501	};
	502
7ec9b872 KM	503	static const struct snd_soc_component_driver sun8i_soc_component = {
	504	.dapm_widgets = sun8i_codec_dapm_widgets,
	505	.num_dapm_widgets = ARRAY_SIZE(sun8i_codec_dapm_widgets),
	506	.dapm_routes = sun8i_codec_dapm_routes,
	507	.num_dapm_routes = ARRAY_SIZE(sun8i_codec_dapm_routes),
	508	.idle_bias_on = 1,
	509	.use_pmdown_time = 1,
	510	.endianness = 1,
	511	.non_legacy_dai_naming = 1,
36c68493 MJ	512	};
	513
	514	static const struct regmap_config sun8i_codec_regmap_config = {
	515	.reg_bits = 32,
	516	.reg_stride = 4,
	517	.val_bits = 32,
	518	.max_register = SUN8I_DAC_MXR_SRC,
	519
	520	.cache_type = REGCACHE_FLAT,
	521	};
	522
	523	static int sun8i_codec_probe(struct platform_device *pdev)
	524	{
	525	struct resource *res_base;
	526	struct sun8i_codec *scodec;
	527	void __iomem *base;
	528	int ret;
	529
	530	scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL);
	531	if (!scodec)
	532	return -ENOMEM;
	533
	534	scodec->dev = &pdev->dev;
	535
	536	scodec->clk_module = devm_clk_get(&pdev->dev, "mod");
	537	if (IS_ERR(scodec->clk_module)) {
	538	dev_err(&pdev->dev, "Failed to get the module clock\n");
	539	return PTR_ERR(scodec->clk_module);
	540	}
	541
	542	scodec->clk_bus = devm_clk_get(&pdev->dev, "bus");
	543	if (IS_ERR(scodec->clk_bus)) {
	544	dev_err(&pdev->dev, "Failed to get the bus clock\n");
	545	return PTR_ERR(scodec->clk_bus);
	546	}
	547
	548	res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	549	base = devm_ioremap_resource(&pdev->dev, res_base);
	550	if (IS_ERR(base)) {
	551	dev_err(&pdev->dev, "Failed to map the registers\n");
	552	return PTR_ERR(base);
	553	}
	554
	555	scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
	556	&sun8i_codec_regmap_config);
	557	if (IS_ERR(scodec->regmap)) {
	558	dev_err(&pdev->dev, "Failed to create our regmap\n");
	559	return PTR_ERR(scodec->regmap);
	560	}
	561
	562	platform_set_drvdata(pdev, scodec);
	563
	564	pm_runtime_enable(&pdev->dev);
	565	if (!pm_runtime_enabled(&pdev->dev)) {
	566	ret = sun8i_codec_runtime_resume(&pdev->dev);
	567	if (ret)
	568	goto err_pm_disable;
	569	}
	570
7ec9b872	571	ret = devm_snd_soc_register_component(&pdev->dev, &sun8i_soc_component,
36c68493 MJ	572	&sun8i_codec_dai, 1);
	573	if (ret) {
	574	dev_err(&pdev->dev, "Failed to register codec\n");
	575	goto err_suspend;
	576	}
	577
	578	return ret;
	579
	580	err_suspend:
	581	if (!pm_runtime_status_suspended(&pdev->dev))
	582	sun8i_codec_runtime_suspend(&pdev->dev);
	583
	584	err_pm_disable:
	585	pm_runtime_disable(&pdev->dev);
	586
	587	return ret;
	588	}
	589
	590	static int sun8i_codec_remove(struct platform_device *pdev)
	591	{
	592	struct snd_soc_card *card = platform_get_drvdata(pdev);
	593	struct sun8i_codec *scodec = snd_soc_card_get_drvdata(card);
	594
	595	pm_runtime_disable(&pdev->dev);
	596	if (!pm_runtime_status_suspended(&pdev->dev))
	597	sun8i_codec_runtime_suspend(&pdev->dev);
	598
36c68493 MJ	599	clk_disable_unprepare(scodec->clk_module);
	600	clk_disable_unprepare(scodec->clk_bus);
	601
	602	return 0;
	603	}
	604
	605	static const struct of_device_id sun8i_codec_of_match[] = {
	606	{ .compatible = "allwinner,sun8i-a33-codec" },
	607	{}
	608	};
	609	MODULE_DEVICE_TABLE(of, sun8i_codec_of_match);
	610
	611	static const struct dev_pm_ops sun8i_codec_pm_ops = {
	612	SET_RUNTIME_PM_OPS(sun8i_codec_runtime_suspend,
	613	sun8i_codec_runtime_resume, NULL)
	614	};
	615
	616	static struct platform_driver sun8i_codec_driver = {
	617	.driver = {
	618	.name = "sun8i-codec",
	619	.of_match_table = sun8i_codec_of_match,
	620	.pm = &sun8i_codec_pm_ops,
	621	},
	622	.probe = sun8i_codec_probe,
	623	.remove = sun8i_codec_remove,
	624	};
	625	module_platform_driver(sun8i_codec_driver);
	626
	627	MODULE_DESCRIPTION("Allwinner A33 (sun8i) codec driver");
	628	MODULE_AUTHOR("Mylène Josserand <mylene.josserand@free-electrons.com>");
	629	MODULE_LICENSE("GPL");
	630	MODULE_ALIAS("platform:sun8i-codec");