diff options
Diffstat (limited to 'sound/soc/codecs/rk3308_codec.c')
| -rw-r--r-- | sound/soc/codecs/rk3308_codec.c | 974 |
1 files changed, 974 insertions, 0 deletions
diff --git a/sound/soc/codecs/rk3308_codec.c b/sound/soc/codecs/rk3308_codec.c new file mode 100644 index 0000000000..8b51e87a17 --- /dev/null +++ b/sound/soc/codecs/rk3308_codec.c @@ -0,0 +1,974 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Rockchip RK3308 internal audio codec driver + * + * Copyright (c) 2018, Fuzhou Rockchip Electronics Co., Ltd All rights reserved. + * Copyright (c) 2024, Vivax-Metrotech Ltd + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/reset.h> +#include <linux/util_macros.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#include "rk3308_codec.h" + +#define ADC_LR_GROUP_MAX 4 + +#define GRF_CHIP_ID 0x800 + +enum { + ACODEC_VERSION_A = 'A', + ACODEC_VERSION_B, + ACODEC_VERSION_C, +}; + +struct rk3308_codec_priv { + const struct device *dev; + struct regmap *regmap; + struct regmap *grf; + struct reset_control *reset; + struct clk *hclk; + struct clk *mclk_rx; + struct clk *mclk_tx; + struct snd_soc_component *component; + unsigned char codec_ver; +}; + +static struct clk_bulk_data rk3308_codec_clocks[] = { + { .id = "hclk" }, + { .id = "mclk_rx" }, + { .id = "mclk_tx" }, +}; + +static const DECLARE_TLV_DB_SCALE(rk3308_codec_adc_alc_gain_tlv, -1800, 150, 0); +static const DECLARE_TLV_DB_SCALE(rk3308_codec_dac_hpout_gain_tlv, -3900, 150, 0); +static const DECLARE_TLV_DB_SCALE(rk3308_codec_dac_hpmix_gain_tlv, -600, 600, 0); + +static const DECLARE_TLV_DB_RANGE(rk3308_codec_dac_lineout_gain_tlv, + 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0), + 1, 1, TLV_DB_SCALE_ITEM(-300, 0, 0), + 2, 2, TLV_DB_SCALE_ITEM(-150, 0, 0), + 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0), +); + +static const char * const rk3308_codec_hpf_cutoff_text[] = { + "20 Hz", "245 Hz", "612 Hz" +}; + +static SOC_ENUM_SINGLE_DECL(rk3308_codec_hpf_cutoff_enum12, RK3308_ADC_DIG_CON04(0), 0, + rk3308_codec_hpf_cutoff_text); +static SOC_ENUM_SINGLE_DECL(rk3308_codec_hpf_cutoff_enum34, RK3308_ADC_DIG_CON04(1), 0, + rk3308_codec_hpf_cutoff_text); +static SOC_ENUM_SINGLE_DECL(rk3308_codec_hpf_cutoff_enum56, RK3308_ADC_DIG_CON04(2), 0, + rk3308_codec_hpf_cutoff_text); +static SOC_ENUM_SINGLE_DECL(rk3308_codec_hpf_cutoff_enum78, RK3308_ADC_DIG_CON04(3), 0, + rk3308_codec_hpf_cutoff_text); + +static const struct snd_kcontrol_new rk3308_codec_controls[] = { + /* Despite the register names, these set the gain when AGC is OFF */ + SOC_SINGLE_RANGE_TLV("MIC1 Capture Volume", + RK3308_ADC_ANA_CON03(0), + RK3308_ADC_CH1_ALC_GAIN_SFT, + RK3308_ADC_CH1_ALC_GAIN_MIN, + RK3308_ADC_CH1_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC2 Capture Volume", + RK3308_ADC_ANA_CON04(0), + RK3308_ADC_CH2_ALC_GAIN_SFT, + RK3308_ADC_CH2_ALC_GAIN_MIN, + RK3308_ADC_CH2_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC3 Capture Volume", + RK3308_ADC_ANA_CON03(1), + RK3308_ADC_CH1_ALC_GAIN_SFT, + RK3308_ADC_CH1_ALC_GAIN_MIN, + RK3308_ADC_CH1_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC4 Capture Volume", + RK3308_ADC_ANA_CON04(1), + RK3308_ADC_CH2_ALC_GAIN_SFT, + RK3308_ADC_CH2_ALC_GAIN_MIN, + RK3308_ADC_CH2_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC5 Capture Volume", + RK3308_ADC_ANA_CON03(2), + RK3308_ADC_CH1_ALC_GAIN_SFT, + RK3308_ADC_CH1_ALC_GAIN_MIN, + RK3308_ADC_CH1_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC6 Capture Volume", + RK3308_ADC_ANA_CON04(2), + RK3308_ADC_CH2_ALC_GAIN_SFT, + RK3308_ADC_CH2_ALC_GAIN_MIN, + RK3308_ADC_CH2_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC7 Capture Volume", + RK3308_ADC_ANA_CON03(3), + RK3308_ADC_CH1_ALC_GAIN_SFT, + RK3308_ADC_CH1_ALC_GAIN_MIN, + RK3308_ADC_CH1_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + SOC_SINGLE_RANGE_TLV("MIC8 Capture Volume", + RK3308_ADC_ANA_CON04(3), + RK3308_ADC_CH2_ALC_GAIN_SFT, + RK3308_ADC_CH2_ALC_GAIN_MIN, + RK3308_ADC_CH2_ALC_GAIN_MAX, + 0, rk3308_codec_adc_alc_gain_tlv), + + SOC_SINGLE("MIC1 Capture Switch", RK3308_ADC_ANA_CON00(0), 3, 1, 0), + SOC_SINGLE("MIC2 Capture Switch", RK3308_ADC_ANA_CON00(0), 7, 1, 0), + SOC_SINGLE("MIC3 Capture Switch", RK3308_ADC_ANA_CON00(1), 3, 1, 0), + SOC_SINGLE("MIC4 Capture Switch", RK3308_ADC_ANA_CON00(1), 7, 1, 0), + SOC_SINGLE("MIC5 Capture Switch", RK3308_ADC_ANA_CON00(2), 3, 1, 0), + SOC_SINGLE("MIC6 Capture Switch", RK3308_ADC_ANA_CON00(2), 7, 1, 0), + SOC_SINGLE("MIC7 Capture Switch", RK3308_ADC_ANA_CON00(3), 3, 1, 0), + SOC_SINGLE("MIC8 Capture Switch", RK3308_ADC_ANA_CON00(3), 7, 1, 0), + + SOC_SINGLE("MIC12 HPF Capture Switch", RK3308_ADC_DIG_CON04(0), 2, 1, 1), + SOC_SINGLE("MIC34 HPF Capture Switch", RK3308_ADC_DIG_CON04(1), 2, 1, 1), + SOC_SINGLE("MIC56 HPF Capture Switch", RK3308_ADC_DIG_CON04(2), 2, 1, 1), + SOC_SINGLE("MIC78 HPF Capture Switch", RK3308_ADC_DIG_CON04(3), 2, 1, 1), + + SOC_ENUM("MIC12 HPF Cutoff", rk3308_codec_hpf_cutoff_enum12), + SOC_ENUM("MIC34 HPF Cutoff", rk3308_codec_hpf_cutoff_enum34), + SOC_ENUM("MIC56 HPF Cutoff", rk3308_codec_hpf_cutoff_enum56), + SOC_ENUM("MIC78 HPF Cutoff", rk3308_codec_hpf_cutoff_enum78), + + SOC_DOUBLE_TLV("Line Out Playback Volume", + RK3308_DAC_ANA_CON04, + RK3308_DAC_L_LINEOUT_GAIN_SFT, + RK3308_DAC_R_LINEOUT_GAIN_SFT, + RK3308_DAC_x_LINEOUT_GAIN_MAX, + 0, rk3308_codec_dac_lineout_gain_tlv), + SOC_DOUBLE("Line Out Playback Switch", + RK3308_DAC_ANA_CON04, + RK3308_DAC_L_LINEOUT_MUTE_SFT, + RK3308_DAC_R_LINEOUT_MUTE_SFT, 1, 0), + SOC_DOUBLE_R_TLV("Headphone Playback Volume", + RK3308_DAC_ANA_CON05, + RK3308_DAC_ANA_CON06, + RK3308_DAC_x_HPOUT_GAIN_SFT, + RK3308_DAC_x_HPOUT_GAIN_MAX, + 0, rk3308_codec_dac_hpout_gain_tlv), + SOC_DOUBLE("Headphone Playback Switch", + RK3308_DAC_ANA_CON03, + RK3308_DAC_L_HPOUT_MUTE_SFT, + RK3308_DAC_R_HPOUT_MUTE_SFT, 1, 0), + SOC_DOUBLE_RANGE_TLV("DAC HPMIX Playback Volume", + RK3308_DAC_ANA_CON12, + RK3308_DAC_L_HPMIX_GAIN_SFT, + RK3308_DAC_R_HPMIX_GAIN_SFT, + 1, 2, 0, rk3308_codec_dac_hpmix_gain_tlv), +}; + +static int rk3308_codec_pop_sound_set(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + unsigned int val = (event == SND_SOC_DAPM_POST_PMU) ? + RK3308_DAC_HPOUT_POP_SOUND_x_WORK : + RK3308_DAC_HPOUT_POP_SOUND_x_INIT; + unsigned int mask = RK3308_DAC_HPOUT_POP_SOUND_x_MSK; + + regmap_update_bits(rk3308->regmap, RK3308_DAC_ANA_CON01, + mask << w->shift, val << w->shift); + + return 0; +} + +static const struct snd_soc_dapm_widget rk3308_codec_dapm_widgets[] = { + SND_SOC_DAPM_INPUT("MIC1"), + SND_SOC_DAPM_INPUT("MIC2"), + SND_SOC_DAPM_INPUT("MIC3"), + SND_SOC_DAPM_INPUT("MIC4"), + SND_SOC_DAPM_INPUT("MIC5"), + SND_SOC_DAPM_INPUT("MIC6"), + SND_SOC_DAPM_INPUT("MIC7"), + SND_SOC_DAPM_INPUT("MIC8"), + + SND_SOC_DAPM_SUPPLY("ADC_CURRENT_EN12", RK3308_ADC_ANA_CON06(0), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_CURRENT_EN34", RK3308_ADC_ANA_CON06(1), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_CURRENT_EN56", RK3308_ADC_ANA_CON06(2), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_CURRENT_EN78", RK3308_ADC_ANA_CON06(3), 0, 0, NULL, 0), + + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC1_EN", RK3308_ADC_ANA_CON00(0), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC2_EN", RK3308_ADC_ANA_CON00(0), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC3_EN", RK3308_ADC_ANA_CON00(1), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC4_EN", RK3308_ADC_ANA_CON00(1), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC5_EN", RK3308_ADC_ANA_CON00(2), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC6_EN", RK3308_ADC_ANA_CON00(2), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC7_EN", RK3308_ADC_ANA_CON00(3), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC8_EN", RK3308_ADC_ANA_CON00(3), 5, 1, 1, 0), + + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC1_WORK", RK3308_ADC_ANA_CON00(0), 2, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC2_WORK", RK3308_ADC_ANA_CON00(0), 6, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC3_WORK", RK3308_ADC_ANA_CON00(1), 2, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC4_WORK", RK3308_ADC_ANA_CON00(1), 6, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC5_WORK", RK3308_ADC_ANA_CON00(2), 2, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC6_WORK", RK3308_ADC_ANA_CON00(2), 6, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC7_WORK", RK3308_ADC_ANA_CON00(3), 2, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_mic, "MIC8_WORK", RK3308_ADC_ANA_CON00(3), 6, 1, 1, 0), + + /* + * In theory MIC1 and MIC2 can switch to LINE IN, but this is not + * supported so all we can do is enabling the MIC input. + */ + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "CH1_IN_SEL", RK3308_ADC_ANA_CON07(0), 4, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "CH2_IN_SEL", RK3308_ADC_ANA_CON07(0), 6, 1, 1, 0), + + SND_SOC_DAPM_SUPPLY("ADC1_BUF_REF_EN", RK3308_ADC_ANA_CON00(0), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC2_BUF_REF_EN", RK3308_ADC_ANA_CON00(0), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC3_BUF_REF_EN", RK3308_ADC_ANA_CON00(1), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC4_BUF_REF_EN", RK3308_ADC_ANA_CON00(1), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC5_BUF_REF_EN", RK3308_ADC_ANA_CON00(2), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC6_BUF_REF_EN", RK3308_ADC_ANA_CON00(2), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC7_BUF_REF_EN", RK3308_ADC_ANA_CON00(3), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC8_BUF_REF_EN", RK3308_ADC_ANA_CON00(3), 4, 0, NULL, 0), + + SND_SOC_DAPM_SUPPLY("ADC_MCLK_GATE", RK3308_GLB_CON, 5, 1, NULL, 0), + + SND_SOC_DAPM_SUPPLY("ADC1_CLK_EN", RK3308_ADC_ANA_CON05(0), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC2_CLK_EN", RK3308_ADC_ANA_CON05(0), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC3_CLK_EN", RK3308_ADC_ANA_CON05(1), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC4_CLK_EN", RK3308_ADC_ANA_CON05(1), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC5_CLK_EN", RK3308_ADC_ANA_CON05(2), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC6_CLK_EN", RK3308_ADC_ANA_CON05(2), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC7_CLK_EN", RK3308_ADC_ANA_CON05(3), 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC8_CLK_EN", RK3308_ADC_ANA_CON05(3), 4, 0, NULL, 0), + + /* The "ALC" name from the TRM is misleading, these are needed even without ALC/AGC */ + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC1_EN", RK3308_ADC_ANA_CON02(0), 0, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC2_EN", RK3308_ADC_ANA_CON02(0), 4, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC3_EN", RK3308_ADC_ANA_CON02(1), 0, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC4_EN", RK3308_ADC_ANA_CON02(1), 4, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC5_EN", RK3308_ADC_ANA_CON02(2), 0, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC6_EN", RK3308_ADC_ANA_CON02(2), 4, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC7_EN", RK3308_ADC_ANA_CON02(3), 0, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC8_EN", RK3308_ADC_ANA_CON02(3), 4, 1, 1, 0), + + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC1_EN", RK3308_ADC_ANA_CON05(0), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC2_EN", RK3308_ADC_ANA_CON05(0), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC3_EN", RK3308_ADC_ANA_CON05(1), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC4_EN", RK3308_ADC_ANA_CON05(1), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC5_EN", RK3308_ADC_ANA_CON05(2), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC6_EN", RK3308_ADC_ANA_CON05(2), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC7_EN", RK3308_ADC_ANA_CON05(3), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ADC8_EN", RK3308_ADC_ANA_CON05(3), 5, 1, 1, 0), + + SND_SOC_DAPM_ADC("ADC1_WORK", "Capture", RK3308_ADC_ANA_CON05(0), 2, 0), + SND_SOC_DAPM_ADC("ADC2_WORK", "Capture", RK3308_ADC_ANA_CON05(0), 6, 0), + SND_SOC_DAPM_ADC("ADC3_WORK", "Capture", RK3308_ADC_ANA_CON05(1), 2, 0), + SND_SOC_DAPM_ADC("ADC4_WORK", "Capture", RK3308_ADC_ANA_CON05(1), 6, 0), + SND_SOC_DAPM_ADC("ADC5_WORK", "Capture", RK3308_ADC_ANA_CON05(2), 2, 0), + SND_SOC_DAPM_ADC("ADC6_WORK", "Capture", RK3308_ADC_ANA_CON05(2), 6, 0), + SND_SOC_DAPM_ADC("ADC7_WORK", "Capture", RK3308_ADC_ANA_CON05(3), 2, 0), + SND_SOC_DAPM_ADC("ADC8_WORK", "Capture", RK3308_ADC_ANA_CON05(3), 6, 0), + + /* The "ALC" name from the TRM is misleading, these are needed even without ALC/AGC */ + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC1_WORK", RK3308_ADC_ANA_CON02(0), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC2_WORK", RK3308_ADC_ANA_CON02(0), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC3_WORK", RK3308_ADC_ANA_CON02(1), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC4_WORK", RK3308_ADC_ANA_CON02(1), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC5_WORK", RK3308_ADC_ANA_CON02(2), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC6_WORK", RK3308_ADC_ANA_CON02(2), 5, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC7_WORK", RK3308_ADC_ANA_CON02(3), 1, 1, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_adc, "ALC8_WORK", RK3308_ADC_ANA_CON02(3), 5, 1, 1, 0), + + SND_SOC_DAPM_SUPPLY("MICBIAS Current", RK3308_ADC_ANA_CON08(0), 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MICBIAS1", RK3308_ADC_ANA_CON07(1), 3, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MICBIAS2", RK3308_ADC_ANA_CON07(2), 3, 0, NULL, 0), + + SND_SOC_DAPM_OUT_DRV("DAC_L_HPMIX_EN", RK3308_DAC_ANA_CON13, 0, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("DAC_R_HPMIX_EN", RK3308_DAC_ANA_CON13, 4, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("DAC_L_HPMIX_WORK", RK3308_DAC_ANA_CON13, 1, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("DAC_R_HPMIX_WORK", RK3308_DAC_ANA_CON13, 5, 0, NULL, 0), + /* HPMIX is not actually acting as a mixer as the only supported input is I2S */ + SND_SOC_DAPM_OUT_DRV("DAC_L_HPMIX_SEL", RK3308_DAC_ANA_CON12, 2, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("DAC_R_HPMIX_SEL", RK3308_DAC_ANA_CON12, 6, 0, NULL, 0), + SND_SOC_DAPM_MIXER("DAC HPMIX Left", RK3308_DAC_ANA_CON13, 2, 0, NULL, 0), + SND_SOC_DAPM_MIXER("DAC HPMIX Right", RK3308_DAC_ANA_CON13, 6, 0, NULL, 0), + + SND_SOC_DAPM_SUPPLY("DAC_MCLK_GATE", RK3308_GLB_CON, 4, 1, NULL, 0), + + SND_SOC_DAPM_SUPPLY("DAC_CURRENT_EN", RK3308_DAC_ANA_CON00, 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DAC_L_REF_EN", RK3308_DAC_ANA_CON02, 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DAC_R_REF_EN", RK3308_DAC_ANA_CON02, 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DAC_L_CLK_EN", RK3308_DAC_ANA_CON02, 1, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DAC_R_CLK_EN", RK3308_DAC_ANA_CON02, 5, 0, NULL, 0), + SND_SOC_DAPM_DAC("DAC_L_DAC_WORK", NULL, RK3308_DAC_ANA_CON02, 3, 0), + SND_SOC_DAPM_DAC("DAC_R_DAC_WORK", NULL, RK3308_DAC_ANA_CON02, 7, 0), + + SND_SOC_DAPM_SUPPLY("DAC_BUF_REF_L", RK3308_DAC_ANA_CON01, 2, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DAC_BUF_REF_R", RK3308_DAC_ANA_CON01, 6, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV_E("HPOUT_POP_SOUND_L", SND_SOC_NOPM, 0, 0, NULL, 0, + rk3308_codec_pop_sound_set, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_OUT_DRV_E("HPOUT_POP_SOUND_R", SND_SOC_NOPM, 4, 0, NULL, 0, + rk3308_codec_pop_sound_set, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_OUT_DRV("L_HPOUT_EN", RK3308_DAC_ANA_CON03, 1, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("R_HPOUT_EN", RK3308_DAC_ANA_CON03, 5, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("L_HPOUT_WORK", RK3308_DAC_ANA_CON03, 2, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("R_HPOUT_WORK", RK3308_DAC_ANA_CON03, 6, 0, NULL, 0), + SND_SOC_DAPM_OUTPUT("HPOUT_L"), + SND_SOC_DAPM_OUTPUT("HPOUT_R"), + + SND_SOC_DAPM_OUT_DRV("L_LINEOUT_EN", RK3308_DAC_ANA_CON04, 0, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV("R_LINEOUT_EN", RK3308_DAC_ANA_CON04, 4, 0, NULL, 0), + SND_SOC_DAPM_OUTPUT("LINEOUT_L"), + SND_SOC_DAPM_OUTPUT("LINEOUT_R"), +}; + +static const struct snd_soc_dapm_route rk3308_codec_dapm_routes[] = { + { "MICBIAS1", NULL, "MICBIAS Current" }, + { "MICBIAS2", NULL, "MICBIAS Current" }, + + { "MIC1_EN", NULL, "MIC1" }, + { "MIC2_EN", NULL, "MIC2" }, + { "MIC3_EN", NULL, "MIC3" }, + { "MIC4_EN", NULL, "MIC4" }, + { "MIC5_EN", NULL, "MIC5" }, + { "MIC6_EN", NULL, "MIC6" }, + { "MIC7_EN", NULL, "MIC7" }, + { "MIC8_EN", NULL, "MIC8" }, + + { "MIC1_WORK", NULL, "MIC1_EN" }, + { "MIC2_WORK", NULL, "MIC2_EN" }, + { "MIC3_WORK", NULL, "MIC3_EN" }, + { "MIC4_WORK", NULL, "MIC4_EN" }, + { "MIC5_WORK", NULL, "MIC5_EN" }, + { "MIC6_WORK", NULL, "MIC6_EN" }, + { "MIC7_WORK", NULL, "MIC7_EN" }, + { "MIC8_WORK", NULL, "MIC8_EN" }, + + { "CH1_IN_SEL", NULL, "MIC1_WORK" }, + { "CH2_IN_SEL", NULL, "MIC2_WORK" }, + + { "ALC1_EN", NULL, "CH1_IN_SEL" }, + { "ALC2_EN", NULL, "CH2_IN_SEL" }, + { "ALC3_EN", NULL, "MIC3_WORK" }, + { "ALC4_EN", NULL, "MIC4_WORK" }, + { "ALC5_EN", NULL, "MIC5_WORK" }, + { "ALC6_EN", NULL, "MIC6_WORK" }, + { "ALC7_EN", NULL, "MIC7_WORK" }, + { "ALC8_EN", NULL, "MIC8_WORK" }, + + { "ADC1_EN", NULL, "ALC1_EN" }, + { "ADC2_EN", NULL, "ALC2_EN" }, + { "ADC3_EN", NULL, "ALC3_EN" }, + { "ADC4_EN", NULL, "ALC4_EN" }, + { "ADC5_EN", NULL, "ALC5_EN" }, + { "ADC6_EN", NULL, "ALC6_EN" }, + { "ADC7_EN", NULL, "ALC7_EN" }, + { "ADC8_EN", NULL, "ALC8_EN" }, + + { "ADC1_WORK", NULL, "ADC1_EN" }, + { "ADC2_WORK", NULL, "ADC2_EN" }, + { "ADC3_WORK", NULL, "ADC3_EN" }, + { "ADC4_WORK", NULL, "ADC4_EN" }, + { "ADC5_WORK", NULL, "ADC5_EN" }, + { "ADC6_WORK", NULL, "ADC6_EN" }, + { "ADC7_WORK", NULL, "ADC7_EN" }, + { "ADC8_WORK", NULL, "ADC8_EN" }, + + { "ADC1_BUF_REF_EN", NULL, "ADC_CURRENT_EN12" }, + { "ADC2_BUF_REF_EN", NULL, "ADC_CURRENT_EN12" }, + { "ADC3_BUF_REF_EN", NULL, "ADC_CURRENT_EN34" }, + { "ADC4_BUF_REF_EN", NULL, "ADC_CURRENT_EN34" }, + { "ADC5_BUF_REF_EN", NULL, "ADC_CURRENT_EN56" }, + { "ADC6_BUF_REF_EN", NULL, "ADC_CURRENT_EN56" }, + { "ADC7_BUF_REF_EN", NULL, "ADC_CURRENT_EN78" }, + { "ADC8_BUF_REF_EN", NULL, "ADC_CURRENT_EN78" }, + + { "ADC1_WORK", NULL, "ADC1_BUF_REF_EN" }, + { "ADC2_WORK", NULL, "ADC2_BUF_REF_EN" }, + { "ADC3_WORK", NULL, "ADC3_BUF_REF_EN" }, + { "ADC4_WORK", NULL, "ADC4_BUF_REF_EN" }, + { "ADC5_WORK", NULL, "ADC5_BUF_REF_EN" }, + { "ADC6_WORK", NULL, "ADC6_BUF_REF_EN" }, + { "ADC7_WORK", NULL, "ADC7_BUF_REF_EN" }, + { "ADC8_WORK", NULL, "ADC8_BUF_REF_EN" }, + + { "ADC1_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC2_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC3_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC4_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC5_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC6_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC7_CLK_EN", NULL, "ADC_MCLK_GATE" }, + { "ADC8_CLK_EN", NULL, "ADC_MCLK_GATE" }, + + { "ADC1_WORK", NULL, "ADC1_CLK_EN" }, + { "ADC2_WORK", NULL, "ADC2_CLK_EN" }, + { "ADC3_WORK", NULL, "ADC3_CLK_EN" }, + { "ADC4_WORK", NULL, "ADC4_CLK_EN" }, + { "ADC5_WORK", NULL, "ADC5_CLK_EN" }, + { "ADC6_WORK", NULL, "ADC6_CLK_EN" }, + { "ADC7_WORK", NULL, "ADC7_CLK_EN" }, + { "ADC8_WORK", NULL, "ADC8_CLK_EN" }, + + { "ALC1_WORK", NULL, "ADC1_WORK" }, + { "ALC2_WORK", NULL, "ADC2_WORK" }, + { "ALC3_WORK", NULL, "ADC3_WORK" }, + { "ALC4_WORK", NULL, "ADC4_WORK" }, + { "ALC5_WORK", NULL, "ADC5_WORK" }, + { "ALC6_WORK", NULL, "ADC6_WORK" }, + { "ALC7_WORK", NULL, "ADC7_WORK" }, + { "ALC8_WORK", NULL, "ADC8_WORK" }, + + { "HiFi Capture", NULL, "ALC1_WORK" }, + { "HiFi Capture", NULL, "ALC2_WORK" }, + { "HiFi Capture", NULL, "ALC3_WORK" }, + { "HiFi Capture", NULL, "ALC4_WORK" }, + { "HiFi Capture", NULL, "ALC5_WORK" }, + { "HiFi Capture", NULL, "ALC6_WORK" }, + { "HiFi Capture", NULL, "ALC7_WORK" }, + { "HiFi Capture", NULL, "ALC8_WORK" }, + + { "DAC_L_HPMIX_EN", NULL, "HiFi Playback" }, + { "DAC_R_HPMIX_EN", NULL, "HiFi Playback" }, + { "DAC_L_HPMIX_WORK", NULL, "DAC_L_HPMIX_EN" }, + { "DAC_R_HPMIX_WORK", NULL, "DAC_R_HPMIX_EN" }, + { "DAC HPMIX Left", NULL, "DAC_L_HPMIX_WORK" }, + { "DAC HPMIX Right", NULL, "DAC_R_HPMIX_WORK" }, + + { "DAC_L_DAC_WORK", NULL, "DAC HPMIX Left" }, + { "DAC_R_DAC_WORK", NULL, "DAC HPMIX Right" }, + + { "DAC_L_REF_EN", NULL, "DAC_CURRENT_EN" }, + { "DAC_R_REF_EN", NULL, "DAC_CURRENT_EN" }, + { "DAC_L_CLK_EN", NULL, "DAC_L_REF_EN" }, + { "DAC_R_CLK_EN", NULL, "DAC_R_REF_EN" }, + { "DAC_L_CLK_EN", NULL, "DAC_MCLK_GATE" }, + { "DAC_R_CLK_EN", NULL, "DAC_MCLK_GATE" }, + { "DAC_L_DAC_WORK", NULL, "DAC_L_CLK_EN" }, + { "DAC_R_DAC_WORK", NULL, "DAC_R_CLK_EN" }, + { "DAC_L_HPMIX_SEL", NULL, "DAC_L_DAC_WORK" }, + { "DAC_R_HPMIX_SEL", NULL, "DAC_R_DAC_WORK" }, + + { "HPOUT_L", NULL, "DAC_BUF_REF_L" }, + { "HPOUT_R", NULL, "DAC_BUF_REF_R" }, + { "L_HPOUT_EN", NULL, "DAC_L_HPMIX_SEL" }, + { "R_HPOUT_EN", NULL, "DAC_R_HPMIX_SEL" }, + { "L_HPOUT_WORK", NULL, "L_HPOUT_EN" }, + { "R_HPOUT_WORK", NULL, "R_HPOUT_EN" }, + { "HPOUT_POP_SOUND_L", NULL, "L_HPOUT_WORK" }, + { "HPOUT_POP_SOUND_R", NULL, "R_HPOUT_WORK" }, + { "HPOUT_L", NULL, "HPOUT_POP_SOUND_L" }, + { "HPOUT_R", NULL, "HPOUT_POP_SOUND_R" }, + + { "L_LINEOUT_EN", NULL, "DAC_L_HPMIX_SEL" }, + { "R_LINEOUT_EN", NULL, "DAC_R_HPMIX_SEL" }, + { "LINEOUT_L", NULL, "L_LINEOUT_EN" }, + { "LINEOUT_R", NULL, "R_LINEOUT_EN" }, +}; + +static int rk3308_codec_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + struct rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + const unsigned int inv_bits = fmt & SND_SOC_DAIFMT_INV_MASK; + const bool inv_bitclk = + (inv_bits & SND_SOC_DAIFMT_IB_IF) || + (inv_bits & SND_SOC_DAIFMT_IB_NF); + const bool inv_frmclk = + (inv_bits & SND_SOC_DAIFMT_IB_IF) || + (inv_bits & SND_SOC_DAIFMT_NB_IF); + const unsigned int dac_master_bits = rk3308->codec_ver < ACODEC_VERSION_C ? + RK3308_DAC_IO_MODE_MASTER | RK3308_DAC_MODE_MASTER : + RK3308BS_DAC_IO_MODE_MASTER | RK3308BS_DAC_MODE_MASTER; + unsigned int adc_aif1 = 0, adc_aif2 = 0, dac_aif1 = 0, dac_aif2 = 0; + bool is_master = false; + int grp; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + break; + case SND_SOC_DAIFMT_CBP_CFP: + adc_aif2 |= RK3308_ADC_IO_MODE_MASTER; + adc_aif2 |= RK3308_ADC_MODE_MASTER; + dac_aif2 |= dac_master_bits; + is_master = true; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + adc_aif1 |= RK3308_ADC_I2S_MODE_PCM; + dac_aif1 |= RK3308_DAC_I2S_MODE_PCM; + break; + case SND_SOC_DAIFMT_I2S: + adc_aif1 |= RK3308_ADC_I2S_MODE_I2S; + dac_aif1 |= RK3308_DAC_I2S_MODE_I2S; + break; + case SND_SOC_DAIFMT_RIGHT_J: + adc_aif1 |= RK3308_ADC_I2S_MODE_RJ; + dac_aif1 |= RK3308_DAC_I2S_MODE_RJ; + break; + case SND_SOC_DAIFMT_LEFT_J: + adc_aif1 |= RK3308_ADC_I2S_MODE_LJ; + dac_aif1 |= RK3308_DAC_I2S_MODE_LJ; + break; + default: + return -EINVAL; + } + + if (inv_bitclk) { + adc_aif2 |= RK3308_ADC_I2S_BIT_CLK_POL_REVERSAL; + dac_aif2 |= RK3308_DAC_I2S_BIT_CLK_POL_REVERSAL; + } + + if (inv_frmclk) { + adc_aif1 |= RK3308_ADC_I2S_LRC_POL_REVERSAL; + dac_aif1 |= RK3308_DAC_I2S_LRC_POL_REVERSAL; + } + + /* + * Hold ADC Digital registers start at master mode + * + * There are 8 ADCs which use the same internal SCLK and LRCK for + * master mode. We need to make sure that they are in effect at the + * same time, otherwise they will cause abnormal clocks. + */ + if (is_master) + regmap_clear_bits(rk3308->regmap, RK3308_GLB_CON, RK3308_ADC_DIG_WORK); + + for (grp = 0; grp < ADC_LR_GROUP_MAX; grp++) { + regmap_update_bits(rk3308->regmap, RK3308_ADC_DIG_CON01(grp), + RK3308_ADC_I2S_LRC_POL_REVERSAL | + RK3308_ADC_I2S_MODE_MSK, + adc_aif1); + regmap_update_bits(rk3308->regmap, RK3308_ADC_DIG_CON02(grp), + RK3308_ADC_IO_MODE_MASTER | + RK3308_ADC_MODE_MASTER | + RK3308_ADC_I2S_BIT_CLK_POL_REVERSAL, + adc_aif2); + } + + /* Hold ADC Digital registers end at master mode */ + if (is_master) + regmap_set_bits(rk3308->regmap, RK3308_GLB_CON, RK3308_ADC_DIG_WORK); + + regmap_update_bits(rk3308->regmap, RK3308_DAC_DIG_CON01, + RK3308_DAC_I2S_LRC_POL_REVERSAL | + RK3308_DAC_I2S_MODE_MSK, + dac_aif1); + regmap_update_bits(rk3308->regmap, RK3308_DAC_DIG_CON02, + dac_master_bits | RK3308_DAC_I2S_BIT_CLK_POL_REVERSAL, + dac_aif2); + + return 0; +} + +static int rk3308_codec_dac_dig_config(struct rk3308_codec_priv *rk3308, + struct snd_pcm_hw_params *params) +{ + unsigned int dac_aif1 = 0; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + dac_aif1 |= RK3308_DAC_I2S_VALID_LEN_16BITS; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + dac_aif1 |= RK3308_DAC_I2S_VALID_LEN_20BITS; + break; + case SNDRV_PCM_FORMAT_S24_LE: + dac_aif1 |= RK3308_DAC_I2S_VALID_LEN_24BITS; + break; + case SNDRV_PCM_FORMAT_S32_LE: + dac_aif1 |= RK3308_DAC_I2S_VALID_LEN_32BITS; + break; + default: + return -EINVAL; + } + + regmap_update_bits(rk3308->regmap, RK3308_DAC_DIG_CON01, + RK3308_DAC_I2S_VALID_LEN_MSK, dac_aif1); + regmap_set_bits(rk3308->regmap, RK3308_DAC_DIG_CON02, RK3308_DAC_I2S_WORK); + + return 0; +} + +static int rk3308_codec_adc_dig_config(struct rk3308_codec_priv *rk3308, + struct snd_pcm_hw_params *params) +{ + unsigned int adc_aif1 = 0; + /* + * grp 0 = ADC1 and ADC2 + * grp 1 = ADC3 and ADC4 + * grp 2 = ADC5 and ADC6 + * grp 3 = ADC7 and ADC8 + */ + u32 used_adc_grps; + int grp; + + switch (params_channels(params)) { + case 1: + adc_aif1 |= RK3308_ADC_I2S_MONO; + used_adc_grps = 1; + break; + case 2: + case 4: + case 6: + case 8: + used_adc_grps = params_channels(params) / 2; + break; + default: + dev_err(rk3308->dev, "Invalid channel number %d\n", params_channels(params)); + return -EINVAL; + } + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + adc_aif1 |= RK3308_ADC_I2S_VALID_LEN_16BITS; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + adc_aif1 |= RK3308_ADC_I2S_VALID_LEN_20BITS; + break; + case SNDRV_PCM_FORMAT_S24_LE: + adc_aif1 |= RK3308_ADC_I2S_VALID_LEN_24BITS; + break; + case SNDRV_PCM_FORMAT_S32_LE: + adc_aif1 |= RK3308_ADC_I2S_VALID_LEN_32BITS; + break; + default: + return -EINVAL; + } + + for (grp = 0; grp < used_adc_grps; grp++) { + regmap_update_bits(rk3308->regmap, + RK3308_ADC_DIG_CON03(grp), + RK3308_ADC_L_CH_BIST_MSK | RK3308_ADC_R_CH_BIST_MSK, + RK3308_ADC_L_CH_NORMAL_LEFT | RK3308_ADC_R_CH_NORMAL_RIGHT); + regmap_update_bits(rk3308->regmap, RK3308_ADC_DIG_CON01(grp), + RK3308_ADC_I2S_VALID_LEN_MSK | RK3308_ADC_I2S_MONO, adc_aif1); + regmap_set_bits(rk3308->regmap, RK3308_ADC_DIG_CON02(grp), RK3308_ADC_I2S_WORK); + } + + return 0; +} + +static int rk3308_codec_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 rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + + return (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + rk3308_codec_dac_dig_config(rk3308, params) : + rk3308_codec_adc_dig_config(rk3308, params); +} + +static const struct snd_soc_dai_ops rk3308_codec_dai_ops = { + .hw_params = rk3308_codec_hw_params, + .set_fmt = rk3308_codec_set_dai_fmt, +}; + +static struct snd_soc_dai_driver rk3308_codec_dai_driver = { + .name = "rk3308-hifi", + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = (SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S20_3LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE), + }, + .capture = { + .stream_name = "HiFi Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = (SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S20_3LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE), + }, + .ops = &rk3308_codec_dai_ops, +}; + +static void rk3308_codec_reset(struct snd_soc_component *component) +{ + struct rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + + reset_control_assert(rk3308->reset); + usleep_range(10000, 11000); /* estimated value */ + reset_control_deassert(rk3308->reset); + + regmap_write(rk3308->regmap, RK3308_GLB_CON, 0x00); + usleep_range(10000, 11000); /* estimated value */ + regmap_write(rk3308->regmap, RK3308_GLB_CON, + RK3308_SYS_WORK | + RK3308_DAC_DIG_WORK | + RK3308_ADC_DIG_WORK); +} + +/* + * Initialize register whose default after HW reset is problematic or which + * are never modified. + */ +static int rk3308_codec_initialize(struct rk3308_codec_priv *rk3308) +{ + int grp; + + /* + * Init ADC digital vol to 0 dB (reset value is 0xff, undocumented). + * Range: -97dB ~ +32dB. + */ + if (rk3308->codec_ver == ACODEC_VERSION_C) { + for (grp = 0; grp < ADC_LR_GROUP_MAX; grp++) { + regmap_write(rk3308->regmap, RK3308_ADC_DIG_CON05(grp), + RK3308_ADC_DIG_VOL_CON_x_0DB); + regmap_write(rk3308->regmap, RK3308_ADC_DIG_CON06(grp), + RK3308_ADC_DIG_VOL_CON_x_0DB); + } + } + + /* set HPMIX default gains (reset value is 0, which is illegal) */ + regmap_update_bits(rk3308->regmap, RK3308_DAC_ANA_CON12, + RK3308_DAC_L_HPMIX_GAIN_MSK | + RK3308_DAC_R_HPMIX_GAIN_MSK, + RK3308_DAC_L_HPMIX_GAIN_NDB_6 | + RK3308_DAC_R_HPMIX_GAIN_NDB_6); + + /* recover DAC digital gain to 0 dB (reset value is 0xff, undocumented) */ + if (rk3308->codec_ver == ACODEC_VERSION_C) + regmap_write(rk3308->regmap, RK3308_DAC_DIG_CON04, + RK3308BS_DAC_DIG_GAIN_0DB); + + /* + * Unconditionally enable zero-cross detection (needed for AGC, + * harmless without AGC) + */ + for (grp = 0; grp < ADC_LR_GROUP_MAX; grp++) + regmap_set_bits(rk3308->regmap, RK3308_ADC_ANA_CON02(grp), + RK3308_ADC_CH1_ZEROCROSS_DET_EN | + RK3308_ADC_CH2_ZEROCROSS_DET_EN); + + return 0; +} + +static int rk3308_codec_probe(struct snd_soc_component *component) +{ + struct rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + + rk3308->component = component; + + rk3308_codec_reset(component); + rk3308_codec_initialize(rk3308); + + return 0; +} + +static int rk3308_codec_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct rk3308_codec_priv *rk3308 = snd_soc_component_get_drvdata(component); + + switch (level) { + case SND_SOC_BIAS_ON: + break; + case SND_SOC_BIAS_PREPARE: + break; + case SND_SOC_BIAS_STANDBY: + if (snd_soc_component_get_bias_level(component) != SND_SOC_BIAS_OFF) + break; + + /* Sequence from TRM Section 8.6.3 "Power Up" */ + regmap_set_bits(rk3308->regmap, RK3308_DAC_ANA_CON02, + RK3308_DAC_L_DAC_EN | RK3308_DAC_R_DAC_EN); + regmap_update_bits(rk3308->regmap, RK3308_ADC_ANA_CON10(0), + RK3308_ADC_CURRENT_CHARGE_MSK, 1); + regmap_set_bits(rk3308->regmap, RK3308_ADC_ANA_CON10(0), + RK3308_ADC_REF_EN); + regmap_update_bits(rk3308->regmap, RK3308_ADC_ANA_CON10(0), + RK3308_ADC_CURRENT_CHARGE_MSK, 0x7f); + msleep(20); /* estimated value */ + break; + case SND_SOC_BIAS_OFF: + /* Sequence from TRM Section 8.6.4 "Power Down" */ + regmap_update_bits(rk3308->regmap, RK3308_ADC_ANA_CON10(0), + RK3308_ADC_CURRENT_CHARGE_MSK, 1); + regmap_clear_bits(rk3308->regmap, RK3308_ADC_ANA_CON10(0), + RK3308_ADC_REF_EN); + regmap_clear_bits(rk3308->regmap, RK3308_DAC_ANA_CON02, + RK3308_DAC_L_DAC_EN | RK3308_DAC_R_DAC_EN); + msleep(20); /* estimated value */ + break; + } + return 0; +} + +static const struct snd_soc_component_driver rk3308_codec_component_driver = { + .probe = rk3308_codec_probe, + .set_bias_level = rk3308_codec_set_bias_level, + .controls = rk3308_codec_controls, + .num_controls = ARRAY_SIZE(rk3308_codec_controls), + .dapm_widgets = rk3308_codec_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rk3308_codec_dapm_widgets), + .dapm_routes = rk3308_codec_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rk3308_codec_dapm_routes), +}; + +static const struct regmap_config rk3308_codec_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = RK3308_DAC_ANA_CON15, +}; + +static int rk3308_codec_get_version(struct rk3308_codec_priv *rk3308) +{ + unsigned int chip_id; + int err; + + err = regmap_read(rk3308->grf, GRF_CHIP_ID, &chip_id); + if (err) + return err; + + switch (chip_id) { + case 3306: + rk3308->codec_ver = ACODEC_VERSION_A; + break; + case 0x3308: + rk3308->codec_ver = ACODEC_VERSION_B; + return dev_err_probe(rk3308->dev, -EINVAL, "Chip version B not supported\n"); + case 0x3308c: + rk3308->codec_ver = ACODEC_VERSION_C; + break; + default: + return dev_err_probe(rk3308->dev, -EINVAL, "Unknown chip_id: 0x%x\n", chip_id); + } + + dev_info(rk3308->dev, "Found codec version %c\n", rk3308->codec_ver); + return 0; +} + +static int rk3308_codec_set_micbias_level(struct rk3308_codec_priv *rk3308) +{ + struct device_node *np = rk3308->dev->of_node; + u32 percent; + u32 mult; + int err; + + err = of_property_read_u32(np, "rockchip,micbias-avdd-percent", &percent); + if (err == -EINVAL) + return 0; + if (err) + return dev_err_probe(rk3308->dev, err, + "Error reading 'rockchip,micbias-avdd-percent'\n"); + + /* Convert percent to register value, linerarly (50% -> 0, 5% step = +1) */ + mult = (percent - 50) / 5; + + /* Check range and that the percent was an exact value allowed */ + if (mult > RK3308_ADC_LEVEL_RANGE_MICBIAS_MAX || mult * 5 + 50 != percent) + return dev_err_probe(rk3308->dev, -EINVAL, + "Invalid value %u for 'rockchip,micbias-avdd-percent'\n", + percent); + + regmap_update_bits(rk3308->regmap, RK3308_ADC_ANA_CON07(0), + RK3308_ADC_LEVEL_RANGE_MICBIAS_MSK, + mult << RK3308_ADC_LEVEL_RANGE_MICBIAS_SFT); + + return 0; +} + +static int rk3308_codec_platform_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct rk3308_codec_priv *rk3308; + void __iomem *base; + int err; + + rk3308 = devm_kzalloc(&pdev->dev, sizeof(*rk3308), GFP_KERNEL); + if (!rk3308) + return -ENOMEM; + + rk3308->dev = dev; + + rk3308->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); + if (IS_ERR(rk3308->grf)) + return dev_err_probe(dev, PTR_ERR(rk3308->grf), "Error getting GRF\n"); + + rk3308->reset = devm_reset_control_get_optional_exclusive(dev, "codec"); + if (IS_ERR(rk3308->reset)) + return dev_err_probe(dev, PTR_ERR(rk3308->reset), "Failed to get reset control\n"); + + err = devm_clk_bulk_get(dev, ARRAY_SIZE(rk3308_codec_clocks), rk3308_codec_clocks); + if (err) + return dev_err_probe(dev, err, "Failed to get clocks\n"); + + err = clk_bulk_prepare_enable(ARRAY_SIZE(rk3308_codec_clocks), rk3308_codec_clocks); + if (err) + return dev_err_probe(dev, err, "Failed to enable clocks\n"); + + err = rk3308_codec_get_version(rk3308); + if (err) + return err; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + rk3308->regmap = devm_regmap_init_mmio(dev, base, &rk3308_codec_regmap_config); + if (IS_ERR(rk3308->regmap)) + return dev_err_probe(dev, PTR_ERR(rk3308->regmap), + "Failed to init regmap\n"); + + platform_set_drvdata(pdev, rk3308); + + err = rk3308_codec_set_micbias_level(rk3308); + if (err) + return err; + + err = devm_snd_soc_register_component(dev, &rk3308_codec_component_driver, + &rk3308_codec_dai_driver, 1); + if (err) + return dev_err_probe(dev, err, "Failed to register codec\n"); + + return 0; +} + +static const struct of_device_id __maybe_unused rk3308_codec_of_match[] = { + { .compatible = "rockchip,rk3308-codec", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rk3308_codec_of_match); + +static struct platform_driver rk3308_codec_driver = { + .driver = { + .name = "rk3308-acodec", + .of_match_table = rk3308_codec_of_match, + }, + .probe = rk3308_codec_platform_probe, +}; +module_platform_driver(rk3308_codec_driver); + +MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>"); +MODULE_AUTHOR("Luca Ceresoli <luca.ceresoli@bootlin.com>"); +MODULE_DESCRIPTION("ASoC RK3308 Codec Driver"); +MODULE_LICENSE("GPL"); |