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- // 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 int 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);
- return 0;
- }
- 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 = evea_remove,
- };
- module_platform_driver(evea_codec_driver);
- MODULE_AUTHOR("Katsuhiro Suzuki <[email protected]>");
- MODULE_DESCRIPTION("UniPhier EVEA codec driver");
- MODULE_LICENSE("GPL v2");
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