// SPDX-License-Identifier: GPL-2.0
//
// Socionext UniPhier EVEA ADC/DAC codec driver.
//
// Copyright (c) 2016-2017 Socionext Inc.
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#define DRV_NAME "evea"
#define EVEA_RATES SNDRV_PCM_RATE_48000
#define EVEA_FORMATS SNDRV_PCM_FMTBIT_S32_LE
#define AADCPOW(n) (0x0078 + 0x04 * (n))
#define AADCPOW_AADC_POWD BIT(0)
#define ALINSW1 0x0088
#define ALINSW1_SEL1_SHIFT 3
#define AHPOUTPOW 0x0098
#define AHPOUTPOW_HP_ON BIT(4)
#define ALINEPOW 0x009c
#define ALINEPOW_LIN2_POWD BIT(3)
#define ALINEPOW_LIN1_POWD BIT(4)
#define ALO1OUTPOW 0x00a8
#define ALO1OUTPOW_LO1_ON BIT(4)
#define ALO2OUTPOW 0x00ac
#define ALO2OUTPOW_ADAC2_MUTE BIT(0)
#define ALO2OUTPOW_LO2_ON BIT(4)
#define AANAPOW 0x00b8
#define AANAPOW_A_POWD BIT(4)
#define ADACSEQ1(n) (0x0144 + 0x40 * (n))
#define ADACSEQ1_MMUTE BIT(1)
#define ADACSEQ2(n) (0x0160 + 0x40 * (n))
#define ADACSEQ2_ADACIN_FIX BIT(0)
#define ADAC1ODC 0x0200
#define ADAC1ODC_HP_DIS_RES_MASK GENMASK(2, 1)
#define ADAC1ODC_HP_DIS_RES_OFF (0x0 << 1)
#define ADAC1ODC_HP_DIS_RES_ON (0x3 << 1)
#define ADAC1ODC_ADAC_RAMPCLT_MASK GENMASK(8, 7)
#define ADAC1ODC_ADAC_RAMPCLT_NORMAL (0x0 << 7)
#define ADAC1ODC_ADAC_RAMPCLT_REDUCE (0x1 << 7)
struct evea_priv {
struct clk *clk, *clk_exiv;
struct reset_control *rst, *rst_exiv, *rst_adamv;
struct regmap *regmap;
int switch_lin;
int switch_lo;
int switch_hp;
};
static const char * const linsw1_sel1_text[] = {
"LIN1", "LIN2", "LIN3"
};
static SOC_ENUM_SINGLE_DECL(linsw1_sel1_enum,
ALINSW1, ALINSW1_SEL1_SHIFT,
linsw1_sel1_text);
static const struct snd_kcontrol_new linesw1_mux[] = {
SOC_DAPM_ENUM("Line In 1 Source", linsw1_sel1_enum),
};
static const struct snd_soc_dapm_widget evea_widgets[] = {
SND_SOC_DAPM_ADC("ADC", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MUX("Line In 1 Mux", SND_SOC_NOPM, 0, 0, linesw1_mux),
SND_SOC_DAPM_INPUT("LIN1_LP"),
SND_SOC_DAPM_INPUT("LIN1_RP"),
SND_SOC_DAPM_INPUT("LIN2_LP"),
SND_SOC_DAPM_INPUT("LIN2_RP"),
SND_SOC_DAPM_INPUT("LIN3_LP"),
SND_SOC_DAPM_INPUT("LIN3_RP"),
SND_SOC_DAPM_DAC("DAC HP", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC LO1", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC LO2", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_OUTPUT("HP1_L"),
SND_SOC_DAPM_OUTPUT("HP1_R"),
SND_SOC_DAPM_OUTPUT("LO2_L"),
SND_SOC_DAPM_OUTPUT("LO2_R"),
};
static const struct snd_soc_dapm_route evea_routes[] = {
{ "Line In 1", NULL, "ADC" },
{ "ADC", NULL, "Line In 1 Mux" },
{ "Line In 1 Mux", "LIN1", "LIN1_LP" },
{ "Line In 1 Mux", "LIN1", "LIN1_RP" },
{ "Line In 1 Mux", "LIN2", "LIN2_LP" },
{ "Line In 1 Mux", "LIN2", "LIN2_RP" },
{ "Line In 1 Mux", "LIN3", "LIN3_LP" },
{ "Line In 1 Mux", "LIN3", "LIN3_RP" },
{ "DAC HP", NULL, "Headphone 1" },
{ "DAC LO1", NULL, "Line Out 1" },
{ "DAC LO2", NULL, "Line Out 2" },
{ "HP1_L", NULL, "DAC HP" },
{ "HP1_R", NULL, "DAC HP" },
{ "LO2_L", NULL, "DAC LO2" },
{ "LO2_R", NULL, "DAC LO2" },
};
static void evea_set_power_state_on(struct evea_priv *evea)
{
struct regmap *map = evea->regmap;
regmap_update_bits(map, AANAPOW, AANAPOW_A_POWD,
AANAPOW_A_POWD);
regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
ADAC1ODC_HP_DIS_RES_ON);
regmap_update_bits(map, ADAC1ODC, ADAC1ODC_ADAC_RAMPCLT_MASK,
ADAC1ODC_ADAC_RAMPCLT_REDUCE);
regmap_update_bits(map, ADACSEQ2(0), ADACSEQ2_ADACIN_FIX, 0);
regmap_update_bits(map, ADACSEQ2(1), ADACSEQ2_ADACIN_FIX, 0);
regmap_update_bits(map, ADACSEQ2(2), ADACSEQ2_ADACIN_FIX, 0);
}
static void evea_set_power_state_off(struct evea_priv *evea)
{
struct regmap *map = evea->regmap;
regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
ADAC1ODC_HP_DIS_RES_ON);
regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
regmap_update_bits(map, ALO2OUTPOW, ALO2OUTPOW_LO2_ON, 0);
regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
}
static int evea_update_switch_lin(struct evea_priv *evea)
{
struct regmap *map = evea->regmap;
if (evea->switch_lin) {
regmap_update_bits(map, ALINEPOW,
ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD,
ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD);
regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD,
AADCPOW_AADC_POWD);
regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD,
AADCPOW_AADC_POWD);
} else {
regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 0);
regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 0);
regmap_update_bits(map, ALINEPOW,
ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD, 0);
}
return 0;
}
static int evea_update_switch_lo(struct evea_priv *evea)
{
struct regmap *map = evea->regmap;
if (evea->switch_lo) {
regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 0);
regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 0);
regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON,
ALO1OUTPOW_LO1_ON);
regmap_update_bits(map, ALO2OUTPOW,
ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON);
} else {
regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
regmap_update_bits(map, ALO2OUTPOW,
ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
0);
}
return 0;
}
static int evea_update_switch_hp(struct evea_priv *evea)
{
struct regmap *map = evea->regmap;
if (evea->switch_hp) {
regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 0);
regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON,
AHPOUTPOW_HP_ON);
regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
ADAC1ODC_HP_DIS_RES_OFF);
} else {
regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
ADAC1ODC_HP_DIS_RES_ON);
regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
ADACSEQ1_MMUTE);
regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
}
return 0;
}
static void evea_update_switch_all(struct evea_priv *evea)
{
evea_update_switch_lin(evea);
evea_update_switch_lo(evea);
evea_update_switch_hp(evea);
}
static int evea_get_switch_lin(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = evea->switch_lin;
return 0;
}
static int evea_set_switch_lin(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
if (evea->switch_lin == ucontrol->value.integer.value[0])
return 0;
evea->switch_lin = ucontrol->value.integer.value[0];
return evea_update_switch_lin(evea);
}
static int evea_get_switch_lo(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = evea->switch_lo;
return 0;
}
static int evea_set_switch_lo(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
if (evea->switch_lo == ucontrol->value.integer.value[0])
return 0;
evea->switch_lo = ucontrol->value.integer.value[0];
return evea_update_switch_lo(evea);
}
static int evea_get_switch_hp(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = evea->switch_hp;
return 0;
}
static int evea_set_switch_hp(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
if (evea->switch_hp == ucontrol->value.integer.value[0])
return 0;
evea->switch_hp = ucontrol->value.integer.value[0];
return evea_update_switch_hp(evea);
}
static const struct snd_kcontrol_new evea_controls[] = {
SOC_SINGLE_BOOL_EXT("Line Capture Switch", 0,
evea_get_switch_lin, evea_set_switch_lin),
SOC_SINGLE_BOOL_EXT("Line Playback Switch", 0,
evea_get_switch_lo, evea_set_switch_lo),
SOC_SINGLE_BOOL_EXT("Headphone Playback Switch", 0,
evea_get_switch_hp, evea_set_switch_hp),
};
static int evea_codec_probe(struct snd_soc_component *component)
{
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
evea->switch_lin = 1;
evea->switch_lo = 1;
evea->switch_hp = 1;
evea_set_power_state_on(evea);
evea_update_switch_all(evea);
return 0;
}
static int evea_codec_suspend(struct snd_soc_component *component)
{
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
evea_set_power_state_off(evea);
reset_control_assert(evea->rst_adamv);
reset_control_assert(evea->rst_exiv);
reset_control_assert(evea->rst);
clk_disable_unprepare(evea->clk_exiv);
clk_disable_unprepare(evea->clk);
return 0;
}
static int evea_codec_resume(struct snd_soc_component *component)
{
struct evea_priv *evea = snd_soc_component_get_drvdata(component);
int ret;
ret = clk_prepare_enable(evea->clk);
if (ret)
return ret;
ret = clk_prepare_enable(evea->clk_exiv);
if (ret)
goto err_out_clock;
ret = reset_control_deassert(evea->rst);
if (ret)
goto err_out_clock_exiv;
ret = reset_control_deassert(evea->rst_exiv);
if (ret)
goto err_out_reset;
ret = reset_control_deassert(evea->rst_adamv);
if (ret)
goto err_out_reset_exiv;
evea_set_power_state_on(evea);
evea_update_switch_all(evea);
return 0;
err_out_reset_exiv:
reset_control_assert(evea->rst_exiv);
err_out_reset:
reset_control_assert(evea->rst);
err_out_clock_exiv:
clk_disable_unprepare(evea->clk_exiv);
err_out_clock:
clk_disable_unprepare(evea->clk);
return ret;
}
static struct snd_soc_component_driver soc_codec_evea = {
.probe = evea_codec_probe,
.suspend = evea_codec_suspend,
.resume = evea_codec_resume,
.dapm_widgets = evea_widgets,
.num_dapm_widgets = ARRAY_SIZE(evea_widgets),
.dapm_routes = evea_routes,
.num_dapm_routes = ARRAY_SIZE(evea_routes),
.controls = evea_controls,
.num_controls = ARRAY_SIZE(evea_controls),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static struct snd_soc_dai_driver soc_dai_evea[] = {
{
.name = DRV_NAME "-line1",
.playback = {
.stream_name = "Line Out 1",
.formats = EVEA_FORMATS,
.rates = EVEA_RATES,
.channels_min = 2,
.channels_max = 2,
},
.capture = {
.stream_name = "Line In 1",
.formats = EVEA_FORMATS,
.rates = EVEA_RATES,
.channels_min = 2,
.channels_max = 2,
},
},
{
.name = DRV_NAME "-hp1",
.playback = {
.stream_name = "Headphone 1",
.formats = EVEA_FORMATS,
.rates = EVEA_RATES,
.channels_min = 2,
.channels_max = 2,
},
},
{
.name = DRV_NAME "-lo2",
.playback = {
.stream_name = "Line Out 2",
.formats = EVEA_FORMATS,
.rates = EVEA_RATES,
.channels_min = 2,
.channels_max = 2,
},
},
};
static const struct regmap_config evea_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0xffc,
.cache_type = REGCACHE_NONE,
};
static int evea_probe(struct platform_device *pdev)
{
struct evea_priv *evea;
void __iomem *preg;
int ret;
evea = devm_kzalloc(&pdev->dev, sizeof(struct evea_priv), GFP_KERNEL);
if (!evea)
return -ENOMEM;
evea->clk = devm_clk_get(&pdev->dev, "evea");
if (IS_ERR(evea->clk))
return PTR_ERR(evea->clk);
evea->clk_exiv = devm_clk_get(&pdev->dev, "exiv");
if (IS_ERR(evea->clk_exiv))
return PTR_ERR(evea->clk_exiv);
evea->rst = devm_reset_control_get_shared(&pdev->dev, "evea");
if (IS_ERR(evea->rst))
return PTR_ERR(evea->rst);
evea->rst_exiv = devm_reset_control_get_shared(&pdev->dev, "exiv");
if (IS_ERR(evea->rst_exiv))
return PTR_ERR(evea->rst_exiv);
preg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(preg))
return PTR_ERR(preg);
evea->regmap = devm_regmap_init_mmio(&pdev->dev, preg,
&evea_regmap_config);
if (IS_ERR(evea->regmap))
return PTR_ERR(evea->regmap);
ret = clk_prepare_enable(evea->clk);
if (ret)
return ret;
ret = clk_prepare_enable(evea->clk_exiv);
if (ret)
goto err_out_clock;
ret = reset_control_deassert(evea->rst);
if (ret)
goto err_out_clock_exiv;
ret = reset_control_deassert(evea->rst_exiv);
if (ret)
goto err_out_reset;
/* ADAMV will hangup if EXIV reset is asserted */
evea->rst_adamv = devm_reset_control_get_shared(&pdev->dev, "adamv");
if (IS_ERR(evea->rst_adamv)) {
ret = PTR_ERR(evea->rst_adamv);
goto err_out_reset_exiv;
}
ret = reset_control_deassert(evea->rst_adamv);
if (ret)
goto err_out_reset_exiv;
platform_set_drvdata(pdev, evea);
ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_evea,
soc_dai_evea, ARRAY_SIZE(soc_dai_evea));
if (ret)
goto err_out_reset_adamv;
return 0;
err_out_reset_adamv:
reset_control_assert(evea->rst_adamv);
err_out_reset_exiv:
reset_control_assert(evea->rst_exiv);
err_out_reset:
reset_control_assert(evea->rst);
err_out_clock_exiv:
clk_disable_unprepare(evea->clk_exiv);
err_out_clock:
clk_disable_unprepare(evea->clk);
return ret;
}
static void evea_remove(struct platform_device *pdev)
{
struct evea_priv *evea = platform_get_drvdata(pdev);
reset_control_assert(evea->rst_adamv);
reset_control_assert(evea->rst_exiv);
reset_control_assert(evea->rst);
clk_disable_unprepare(evea->clk_exiv);
clk_disable_unprepare(evea->clk);
}
static const struct of_device_id evea_of_match[] __maybe_unused = {
{ .compatible = "socionext,uniphier-evea", },
{}
};
MODULE_DEVICE_TABLE(of, evea_of_match);
static struct platform_driver evea_codec_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = of_match_ptr(evea_of_match),
},
.probe = evea_probe,
.remove_new = evea_remove,
};
module_platform_driver(evea_codec_driver);
MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>");
MODULE_DESCRIPTION("UniPhier EVEA codec driver");
MODULE_LICENSE("GPL v2");
