On Wed, Feb 14, 2018 at 3:21 PM, Cosmin-Gabriel Samoila <cosmin.samoila@xxxxxxx> wrote: > The AK4458 is a 32-bit 8ch Premium DAC that corresponds > to a 768kHz PCM input and an 11.2MHz DSD input at maximum. > It supports I2S, DSD and TDM modes with 24 or 32 bit MSB > or 16, 24, 32 LSB formats. Its datasheet is available here: > https://www.akm.com/akm/en/file/datasheet/AK4458VN.pdf > Looks fine to me Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> One nit below. > Signed-off-by: Junichi Wakasugi <wakasugi.jb@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Mihai Serban <mihai.serban@xxxxxxx> > Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> > Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@xxxxxxx> > --- > sound/soc/codecs/Kconfig | 6 + > sound/soc/codecs/Makefile | 2 + > sound/soc/codecs/ak4458.c | 659 ++++++++++++++++++++++++++++++++++++++++++++++ > sound/soc/codecs/ak4458.h | 86 ++++++ > 4 files changed, 753 insertions(+) > create mode 100644 sound/soc/codecs/ak4458.c > create mode 100644 sound/soc/codecs/ak4458.h > > diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig > index 2b331f7..7f6fb5e 100644 > --- a/sound/soc/codecs/Kconfig > +++ b/sound/soc/codecs/Kconfig > @@ -35,6 +35,7 @@ config SND_SOC_ALL_CODECS > select SND_SOC_ADAU7002 > select SND_SOC_ADS117X > select SND_SOC_AK4104 if SPI_MASTER > + select SND_SOC_AK4458 if I2C > select SND_SOC_AK4535 if I2C > select SND_SOC_AK4554 > select SND_SOC_AK4613 if I2C > @@ -375,6 +376,11 @@ config SND_SOC_AK4104 > tristate "AKM AK4104 CODEC" > depends on SPI_MASTER > > +config SND_SOC_AK4458 > + tristate "AKM AK4458 CODEC" > + depends on I2C > + select REGMAP_I2C > + > config SND_SOC_AK4535 > tristate > > diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile > index 4053c72..339b674 100644 > --- a/sound/soc/codecs/Makefile > +++ b/sound/soc/codecs/Makefile > @@ -27,6 +27,7 @@ snd-soc-adav801-objs := adav801.o > snd-soc-adav803-objs := adav803.o > snd-soc-ads117x-objs := ads117x.o > snd-soc-ak4104-objs := ak4104.o > +snd-soc-ak4458-objs := ak4458.o > snd-soc-ak4535-objs := ak4535.o > snd-soc-ak4554-objs := ak4554.o > snd-soc-ak4613-objs := ak4613.o > @@ -270,6 +271,7 @@ obj-$(CONFIG_SND_SOC_ADAV801) += snd-soc-adav801.o > obj-$(CONFIG_SND_SOC_ADAV803) += snd-soc-adav803.o > obj-$(CONFIG_SND_SOC_ADS117X) += snd-soc-ads117x.o > obj-$(CONFIG_SND_SOC_AK4104) += snd-soc-ak4104.o > +obj-$(CONFIG_SND_SOC_AK4458) += snd-soc-ak4458.o > obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o > obj-$(CONFIG_SND_SOC_AK4554) += snd-soc-ak4554.o > obj-$(CONFIG_SND_SOC_AK4613) += snd-soc-ak4613.o > diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c > new file mode 100644 > index 0000000..b579cda > --- /dev/null > +++ b/sound/soc/codecs/ak4458.c > @@ -0,0 +1,659 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Audio driver for AK4458 DAC > + * > + * Copyright (C) 2016 Asahi Kasei Microdevices Corporation > + * Copyright 2018 NXP > + */ > + > +#include <linux/module.h> > +#include <linux/delay.h> > +#include <linux/slab.h> > +#include <linux/gpio/consumer.h> > +#include <linux/of_device.h> > +#include <linux/of_gpio.h> > +#include <linux/pm_runtime.h> > +#include <linux/i2c.h> Keep it sorted alphabetically. > +#include <sound/soc.h> > +#include <sound/soc-dapm.h> > +#include <sound/initval.h> > +#include <sound/tlv.h> > +#include <sound/pcm_params.h> Ditto. > + > +#include "ak4458.h" > + > +/* AK4458 Codec Private Data */ > +struct ak4458_priv { > + struct device *dev; > + struct regmap *regmap; > + struct gpio_desc *reset_gpiod; > + struct gpio_desc *mute_gpiod; > + int digfil; /* SSLOW, SD, SLOW bits */ > + int fs; /* sampling rate */ > + int fmt; > + int slots; > + int slot_width; > +}; > + > +static const struct reg_default ak4458_reg_defaults[] = { > + { 0x00, 0x0C }, /* 0x00 AK4458_00_CONTROL1 */ > + { 0x01, 0x22 }, /* 0x01 AK4458_01_CONTROL2 */ > + { 0x02, 0x00 }, /* 0x02 AK4458_02_CONTROL3 */ > + { 0x03, 0xFF }, /* 0x03 AK4458_03_LCHATT */ > + { 0x04, 0xFF }, /* 0x04 AK4458_04_RCHATT */ > + { 0x05, 0x00 }, /* 0x05 AK4458_05_CONTROL4 */ > + { 0x06, 0x00 }, /* 0x06 AK4458_06_DSD1 */ > + { 0x07, 0x03 }, /* 0x07 AK4458_07_CONTROL5 */ > + { 0x08, 0x00 }, /* 0x08 AK4458_08_SOUND_CONTROL */ > + { 0x09, 0x00 }, /* 0x09 AK4458_09_DSD2 */ > + { 0x0A, 0x0D }, /* 0x0A AK4458_0A_CONTROL6 */ > + { 0x0B, 0x0C }, /* 0x0B AK4458_0B_CONTROL7 */ > + { 0x0C, 0x00 }, /* 0x0C AK4458_0C_CONTROL8 */ > + { 0x0D, 0x00 }, /* 0x0D AK4458_0D_CONTROL9 */ > + { 0x0E, 0x50 }, /* 0x0E AK4458_0E_CONTROL10 */ > + { 0x0F, 0xFF }, /* 0x0F AK4458_0F_L2CHATT */ > + { 0x10, 0xFF }, /* 0x10 AK4458_10_R2CHATT */ > + { 0x11, 0xFF }, /* 0x11 AK4458_11_L3CHATT */ > + { 0x12, 0xFF }, /* 0x12 AK4458_12_R3CHATT */ > + { 0x13, 0xFF }, /* 0x13 AK4458_13_L4CHATT */ > + { 0x14, 0xFF }, /* 0x14 AK4458_14_R4CHATT */ > +}; > + > +/* > + * Volume control: > + * from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB) > + */ > +static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); > + > +/* > + * DEM1 bit DEM0 bit Mode > + * 0 0 44.1kHz > + * 0 1 OFF (default) > + * 1 0 48kHz > + * 1 1 32kHz > + */ > +static const char * const ak4458_dem_select_texts[] = { > + "44.1kHz", "OFF", "48kHz", "32kHz" > +}; > + > +/* > + * SSLOW, SD, SLOW bits Digital Filter Setting > + * 0, 0, 0 : Sharp Roll-Off Filter > + * 0, 0, 1 : Slow Roll-Off Filter > + * 0, 1, 0 : Short delay Sharp Roll-Off Filter > + * 0, 1, 1 : Short delay Slow Roll-Off Filter > + * 1, *, * : Super Slow Roll-Off Filter > + */ > +static const char * const ak4458_digfil_select_texts[] = { > + "Sharp Roll-Off Filter", > + "Slow Roll-Off Filter", > + "Short delay Sharp Roll-Off Filter", > + "Short delay Slow Roll-Off Filter", > + "Super Slow Roll-Off Filter" > +}; > + > +/* > + * DZFB: Inverting Enable of DZF > + * 0: DZF goes H at Zero Detection > + * 1: DZF goes L at Zero Detection > + */ > +static const char * const ak4458_dzfb_select_texts[] = {"H", "L"}; > + > +/* > + * SC1-0 bits: Sound Mode Setting > + * 0 0 : Sound Mode 0 > + * 0 1 : Sound Mode 1 > + * 1 0 : Sound Mode 2 > + * 1 1 : Reserved > + */ > +static const char * const ak4458_sc_select_texts[] = { > + "Sound Mode 0", "Sound Mode 1", "Sound Mode 2" > +}; > + > +/* FIR2-0 bits: FIR Filter Mode Setting */ > +static const char * const ak4458_fir_select_texts[] = { > + "Mode 0", "Mode 1", "Mode 2", "Mode 3", > + "Mode 4", "Mode 5", "Mode 6", "Mode 7", > +}; > + > +/* ATS1-0 bits Attenuation Speed */ > +static const char * const ak4458_ats_select_texts[] = { > + "4080/fs", "2040/fs", "510/fs", "255/fs", > +}; > + > +/* DIF2 bit Audio Interface Format Setting(BICK fs) */ > +static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",}; > + > +static const struct soc_enum ak4458_dac1_dem_enum = > + SOC_ENUM_SINGLE(AK4458_01_CONTROL2, 1, > + ARRAY_SIZE(ak4458_dem_select_texts), > + ak4458_dem_select_texts); > +static const struct soc_enum ak4458_dac2_dem_enum = > + SOC_ENUM_SINGLE(AK4458_0A_CONTROL6, 0, > + ARRAY_SIZE(ak4458_dem_select_texts), > + ak4458_dem_select_texts); > +static const struct soc_enum ak4458_dac3_dem_enum = > + SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 4, > + ARRAY_SIZE(ak4458_dem_select_texts), > + ak4458_dem_select_texts); > +static const struct soc_enum ak4458_dac4_dem_enum = > + SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 6, > + ARRAY_SIZE(ak4458_dem_select_texts), > + ak4458_dem_select_texts); > +static const struct soc_enum ak4458_digfil_enum = > + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts), > + ak4458_digfil_select_texts); > +static const struct soc_enum ak4458_dzfb_enum = > + SOC_ENUM_SINGLE(AK4458_02_CONTROL3, 2, > + ARRAY_SIZE(ak4458_dzfb_select_texts), > + ak4458_dzfb_select_texts); > +static const struct soc_enum ak4458_sm_enum = > + SOC_ENUM_SINGLE(AK4458_08_SOUND_CONTROL, 0, > + ARRAY_SIZE(ak4458_sc_select_texts), > + ak4458_sc_select_texts); > +static const struct soc_enum ak4458_fir_enum = > + SOC_ENUM_SINGLE(AK4458_0C_CONTROL8, 0, > + ARRAY_SIZE(ak4458_fir_select_texts), > + ak4458_fir_select_texts); > +static const struct soc_enum ak4458_ats_enum = > + SOC_ENUM_SINGLE(AK4458_0B_CONTROL7, 6, > + ARRAY_SIZE(ak4458_ats_select_texts), > + ak4458_ats_select_texts); > +static const struct soc_enum ak4458_dif_enum = > + SOC_ENUM_SINGLE(AK4458_00_CONTROL1, 3, > + ARRAY_SIZE(ak4458_dif_select_texts), > + ak4458_dif_select_texts); > + > +static int get_digfil(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) > +{ > + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + > + ucontrol->value.enumerated.item[0] = ak4458->digfil; > + > + return 0; > +} > + > +static int set_digfil(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) > +{ > + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + int num; > + > + num = ucontrol->value.enumerated.item[0]; > + if (num > 4) > + return -EINVAL; > + > + ak4458->digfil = num; > + > + /* write SD bit */ > + snd_soc_update_bits(codec, AK4458_01_CONTROL2, > + AK4458_SD_MASK, > + ((ak4458->digfil & 0x02) << 4)); > + > + /* write SLOW bit */ > + snd_soc_update_bits(codec, AK4458_02_CONTROL3, > + AK4458_SLOW_MASK, > + (ak4458->digfil & 0x01)); > + > + /* write SSLOW bit */ > + snd_soc_update_bits(codec, AK4458_05_CONTROL4, > + AK4458_SSLOW_MASK, > + ((ak4458->digfil & 0x04) >> 2)); > + > + return 0; > +} > + > +static const struct snd_kcontrol_new ak4458_snd_controls[] = { > + SOC_DOUBLE_R_TLV("DAC1 Playback Volume", AK4458_03_LCHATT, > + AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv), > + SOC_DOUBLE_R_TLV("DAC2 Playback Volume", AK4458_0F_L2CHATT, > + AK4458_10_R2CHATT, 0, 0xFF, 0, dac_tlv), > + SOC_DOUBLE_R_TLV("DAC3 Playback Volume", AK4458_11_L3CHATT, > + AK4458_12_R3CHATT, 0, 0xFF, 0, dac_tlv), > + SOC_DOUBLE_R_TLV("DAC4 Playback Volume", AK4458_13_L4CHATT, > + AK4458_14_R4CHATT, 0, 0xFF, 0, dac_tlv), > + SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum), > + SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum), > + SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum), > + SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum), > + SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum, > + get_digfil, set_digfil), > + SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum), > + SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum), > + SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum), > + SOC_ENUM("AK4458 Attenuation transition Time Setting", > + ak4458_ats_enum), > + SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum), > +}; > + > +/* ak4458 dapm widgets */ > +static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = { > + SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/ > + SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0), > + SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"), > + > + SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/ > + SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"), > + > + SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/ > + SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"), > + > + SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/ > + SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"), > +}; > + > +static const struct snd_soc_dapm_route ak4458_intercon[] = { > + {"AK4458 DAC1", NULL, "AK4458 SDTI"}, > + {"AK4458 AOUTA", NULL, "AK4458 DAC1"}, > + > + {"AK4458 DAC2", NULL, "AK4458 SDTI"}, > + {"AK4458 AOUTB", NULL, "AK4458 DAC2"}, > + > + {"AK4458 DAC3", NULL, "AK4458 SDTI"}, > + {"AK4458 AOUTC", NULL, "AK4458 DAC3"}, > + > + {"AK4458 DAC4", NULL, "AK4458 SDTI"}, > + {"AK4458 AOUTD", NULL, "AK4458 DAC4"}, > +}; > + > +static int ak4458_rstn_control(struct snd_soc_codec *codec, int bit) > +{ > + int ret; > + > + if (bit) > + ret = snd_soc_update_bits(codec, > + AK4458_00_CONTROL1, > + AK4458_RSTN_MASK, > + 0x1); > + else > + ret = snd_soc_update_bits(codec, > + AK4458_00_CONTROL1, > + AK4458_RSTN_MASK, > + 0x0); > + return ret; > +} > + > +static int ak4458_hw_params(struct snd_pcm_substream *substream, > + struct snd_pcm_hw_params *params, > + struct snd_soc_dai *dai) > +{ > + struct snd_soc_codec *codec = dai->codec; > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + int pcm_width = max(params_physical_width(params), ak4458->slot_width); > + int nfs1; > + u8 format; > + > + nfs1 = params_rate(params); > + ak4458->fs = nfs1; > + > + /* Master Clock Frequency Auto Setting Mode Enable */ > + snd_soc_update_bits(codec, AK4458_00_CONTROL1, 0x80, 0x80); > + > + switch (pcm_width) { > + case 16: > + if (ak4458->fmt == SND_SOC_DAIFMT_I2S) > + format = AK4458_DIF_24BIT_I2S; > + else > + format = AK4458_DIF_16BIT_LSB; > + break; > + case 32: > + switch (ak4458->fmt) { > + case SND_SOC_DAIFMT_I2S: > + format = AK4458_DIF_32BIT_I2S; > + break; > + case SND_SOC_DAIFMT_LEFT_J: > + format = AK4458_DIF_32BIT_MSB; > + break; > + case SND_SOC_DAIFMT_RIGHT_J: > + format = AK4458_DIF_32BIT_LSB; > + break; > + case SND_SOC_DAIFMT_DSP_B: > + format = AK4458_DIF_32BIT_MSB; > + break; > + default: > + return -EINVAL; > + } > + break; > + default: > + return -EINVAL; > + } > + > + snd_soc_update_bits(codec, AK4458_00_CONTROL1, > + AK4458_DIF_MASK, format); > + > + ak4458_rstn_control(codec, 0); > + ak4458_rstn_control(codec, 1); > + > + return 0; > +} > + > +static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) > +{ > + struct snd_soc_codec *codec = dai->codec; > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + > + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { > + case SND_SOC_DAIFMT_CBS_CFS: /* Slave Mode */ > + break; > + case SND_SOC_DAIFMT_CBM_CFM: /* Master Mode is not supported */ > + case SND_SOC_DAIFMT_CBS_CFM: > + case SND_SOC_DAIFMT_CBM_CFS: > + default: > + dev_err(codec->dev, "Master mode unsupported\n"); > + return -EINVAL; > + } > + > + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { > + case SND_SOC_DAIFMT_I2S: > + case SND_SOC_DAIFMT_LEFT_J: > + case SND_SOC_DAIFMT_RIGHT_J: > + case SND_SOC_DAIFMT_DSP_B: > + ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; > + break; > + default: > + dev_err(codec->dev, "Audio format 0x%02X unsupported\n", > + fmt & SND_SOC_DAIFMT_FORMAT_MASK); > + return -EINVAL; > + } > + > + ak4458_rstn_control(codec, 0); > + ak4458_rstn_control(codec, 1); > + > + return 0; > +} > + > +static const int att_speed[] = { 4080, 2040, 510, 255 }; > + > +static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute) > +{ > + struct snd_soc_codec *codec = dai->codec; > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + int nfs, ndt, ret, reg; > + int ats; > + > + nfs = ak4458->fs; > + > + reg = snd_soc_read(codec, AK4458_0B_CONTROL7); > + ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT; > + > + ndt = att_speed[ats] / (nfs / 1000); > + > + if (mute) { > + ret = snd_soc_update_bits(codec, AK4458_01_CONTROL2, 0x01, 1); > + mdelay(ndt); > + if (ak4458->mute_gpiod) > + gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); > + } else { > + if (ak4458->mute_gpiod) > + gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); > + ret = snd_soc_update_bits(codec, AK4458_01_CONTROL2, 0x01, 0); > + mdelay(ndt); > + } > + > + return 0; > +} > + > +static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, > + unsigned int rx_mask, int slots, int slot_width) > +{ > + struct snd_soc_codec *codec = dai->codec; > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + int mode; > + > + ak4458->slots = slots; > + ak4458->slot_width = slot_width; > + > + switch (slots * slot_width) { > + case 128: > + mode = AK4458_MODE_TDM128; > + break; > + case 256: > + mode = AK4458_MODE_TDM256; > + break; > + case 512: > + mode = AK4458_MODE_TDM512; > + break; > + default: > + mode = AK4458_MODE_NORMAL; > + break; > + } > + > + snd_soc_update_bits(codec, AK4458_0A_CONTROL6, > + AK4458_MODE_MASK, > + mode); > + > + return 0; > +} > + > +#define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ > + SNDRV_PCM_FMTBIT_S24_LE |\ > + SNDRV_PCM_FMTBIT_S32_LE) > + > +static const unsigned int ak4458_rates[] = { > + 8000, 11025, 16000, 22050, > + 32000, 44100, 48000, 88200, > + 96000, 176400, 192000, 352800, > + 384000, 705600, 768000, 1411200, > + 2822400, > +}; > + > +static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = { > + .count = ARRAY_SIZE(ak4458_rates), > + .list = ak4458_rates, > +}; > + > +static int ak4458_startup(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + int ret; > + > + ret = snd_pcm_hw_constraint_list(substream->runtime, 0, > + SNDRV_PCM_HW_PARAM_RATE, > + &ak4458_rate_constraints); > + > + return ret; > +} > + > +static struct snd_soc_dai_ops ak4458_dai_ops = { > + .startup = ak4458_startup, > + .hw_params = ak4458_hw_params, > + .set_fmt = ak4458_set_dai_fmt, > + .digital_mute = ak4458_set_dai_mute, > + .set_tdm_slot = ak4458_set_tdm_slot, > +}; > + > +static struct snd_soc_dai_driver ak4458_dai = { > + .name = "ak4458-aif", > + .playback = { > + .stream_name = "Playback", > + .channels_min = 1, > + .channels_max = 8, > + .rates = SNDRV_PCM_RATE_KNOT, > + .formats = AK4458_FORMATS, > + }, > + .ops = &ak4458_dai_ops, > +}; > + > +static void ak4458_power_off(struct ak4458_priv *ak4458) > +{ > + if (ak4458->reset_gpiod) { > + gpiod_set_value_cansleep(ak4458->reset_gpiod, 0); > + usleep_range(1000, 2000); > + } > +} > + > +static void ak4458_power_on(struct ak4458_priv *ak4458) > +{ > + if (ak4458->reset_gpiod) { > + gpiod_set_value_cansleep(ak4458->reset_gpiod, 1); > + usleep_range(1000, 2000); > + } > +} > + > +static void ak4458_init(struct snd_soc_codec *codec) > +{ > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + > + /* External Mute ON */ > + if (ak4458->mute_gpiod) > + gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); > + > + ak4458_power_on(ak4458); > + > + snd_soc_update_bits(codec, AK4458_00_CONTROL1, > + 0x80, 0x80); /* ACKS bit = 1; 10000000 */ > + > + ak4458_rstn_control(codec, 1); > +} > + > +static int ak4458_probe(struct snd_soc_codec *codec) > +{ > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + > + ak4458_init(codec); > + > + ak4458->fs = 48000; > + > + return 0; > +} > + > +static int ak4458_remove(struct snd_soc_codec *codec) > +{ > + struct ak4458_priv *ak4458 = snd_soc_codec_get_drvdata(codec); > + > + ak4458_power_off(ak4458); > + > + return 0; > +} > + > +#ifdef CONFIG_PM > +static int __maybe_unused ak4458_runtime_suspend(struct device *dev) > +{ > + struct ak4458_priv *ak4458 = dev_get_drvdata(dev); > + > + regcache_cache_only(ak4458->regmap, true); > + > + ak4458_power_off(ak4458); > + > + if (ak4458->mute_gpiod) > + gpiod_set_value_cansleep(ak4458->mute_gpiod, 0); > + > + return 0; > +} > + > +static int __maybe_unused ak4458_runtime_resume(struct device *dev) > +{ > + struct ak4458_priv *ak4458 = dev_get_drvdata(dev); > + > + if (ak4458->mute_gpiod) > + gpiod_set_value_cansleep(ak4458->mute_gpiod, 1); > + > + ak4458_power_off(ak4458); > + ak4458_power_on(ak4458); > + > + regcache_cache_only(ak4458->regmap, false); > + regcache_mark_dirty(ak4458->regmap); > + > + return regcache_sync(ak4458->regmap); > +} > +#endif /* CONFIG_PM */ > + > +struct snd_soc_codec_driver soc_codec_dev_ak4458 = { > + .probe = ak4458_probe, > + .remove = ak4458_remove, > + .component_driver = { > + .controls = ak4458_snd_controls, > + .num_controls = ARRAY_SIZE(ak4458_snd_controls), > + .dapm_widgets = ak4458_dapm_widgets, > + .num_dapm_widgets = ARRAY_SIZE(ak4458_dapm_widgets), > + .dapm_routes = ak4458_intercon, > + .num_dapm_routes = ARRAY_SIZE(ak4458_intercon), > + }, > +}; > + > +const struct regmap_config ak4458_regmap = { > + .reg_bits = 8, > + .val_bits = 8, > + > + .max_register = AK4458_14_R4CHATT, > + .reg_defaults = ak4458_reg_defaults, > + .num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults), > + .cache_type = REGCACHE_RBTREE, > +}; > + > +const struct dev_pm_ops ak4458_pm = { > + SET_RUNTIME_PM_OPS(ak4458_runtime_suspend, ak4458_runtime_resume, NULL) > + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, > + pm_runtime_force_resume) > +}; > + > +static int ak4458_i2c_probe(struct i2c_client *i2c) > +{ > + struct ak4458_priv *ak4458; > + int ret; > + > + ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL); > + if (!ak4458) > + return -ENOMEM; > + > + ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap); > + if (IS_ERR(ak4458->regmap)) > + return PTR_ERR(ak4458->regmap); > + > + i2c_set_clientdata(i2c, ak4458); > + ak4458->dev = &i2c->dev; > + > + ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset", > + GPIOD_OUT_LOW); > + if (IS_ERR(ak4458->reset_gpiod)) > + return PTR_ERR(ak4458->reset_gpiod); > + > + ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute", > + GPIOD_OUT_LOW); > + if (IS_ERR(ak4458->mute_gpiod)) > + return PTR_ERR(ak4458->mute_gpiod); > + > + ret = snd_soc_register_codec(ak4458->dev, &soc_codec_dev_ak4458, > + &ak4458_dai, 1); > + if (ret < 0) { > + dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret); > + return ret; > + } > + > + pm_runtime_enable(&i2c->dev); > + > + return 0; > +} > + > +static int ak4458_i2c_remove(struct i2c_client *i2c) > +{ > + snd_soc_unregister_codec(&i2c->dev); > + pm_runtime_disable(&i2c->dev); > + > + return 0; > +} > + > +static const struct of_device_id ak4458_of_match[] = { > + { .compatible = "asahi-kasei,ak4458", }, > + { }, > +}; > + > +static struct i2c_driver ak4458_i2c_driver = { > + .driver = { > + .name = "ak4458", > + .pm = &ak4458_pm, > + .of_match_table = ak4458_of_match, > + }, > + .probe_new = ak4458_i2c_probe, > + .remove = ak4458_i2c_remove, > +}; > + > +module_i2c_driver(ak4458_i2c_driver); > + > +MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb@xxxxxxxxxxxxxxxxxxxx>"); > +MODULE_AUTHOR("Mihai Serban <mihai.serban@xxxxxxx>"); > +MODULE_DESCRIPTION("ASoC AK4458 DAC driver"); > +MODULE_LICENSE("GPL"); > diff --git a/sound/soc/codecs/ak4458.h b/sound/soc/codecs/ak4458.h > new file mode 100644 > index 0000000..16d9d22 > --- /dev/null > +++ b/sound/soc/codecs/ak4458.h > @@ -0,0 +1,86 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Audio driver for AK4458 > + * > + * Copyright (C) 2016 Asahi Kasei Microdevices Corporation > + * Copyright 2018 NXP > + */ > + > +#ifndef _AK4458_H > +#define _AK4458_H > + > +#include <linux/regmap.h> > + > +/* Settings */ > + > +#define AK4458_00_CONTROL1 0x00 > +#define AK4458_01_CONTROL2 0x01 > +#define AK4458_02_CONTROL3 0x02 > +#define AK4458_03_LCHATT 0x03 > +#define AK4458_04_RCHATT 0x04 > +#define AK4458_05_CONTROL4 0x05 > +#define AK4458_06_DSD1 0x06 > +#define AK4458_07_CONTROL5 0x07 > +#define AK4458_08_SOUND_CONTROL 0x08 > +#define AK4458_09_DSD2 0x09 > +#define AK4458_0A_CONTROL6 0x0A > +#define AK4458_0B_CONTROL7 0x0B > +#define AK4458_0C_CONTROL8 0x0C > +#define AK4458_0D_CONTROL9 0x0D > +#define AK4458_0E_CONTROL10 0x0E > +#define AK4458_0F_L2CHATT 0x0F > +#define AK4458_10_R2CHATT 0x10 > +#define AK4458_11_L3CHATT 0x11 > +#define AK4458_12_R3CHATT 0x12 > +#define AK4458_13_L4CHATT 0x13 > +#define AK4458_14_R4CHATT 0x14 > + > +/* Bitfield Definitions */ > + > +/* AK4458_00_CONTROL1 (0x00) Fields > + * Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0 > + * 00H Control 1 ACKS 0 0 0 DIF2 DIF1 DIF0 RSTN > + */ > + > +/* Digital Filter (SD, SLOW, SSLOW) */ > +#define AK4458_SD_MASK GENMASK(5, 5) > +#define AK4458_SLOW_MASK GENMASK(0, 0) > +#define AK4458_SSLOW_MASK GENMASK(0, 0) > + > +/* DIF2 1 0 > + * x 1 0 MSB justified Figure 3 (default) > + * x 1 1 I2S Compliment Figure 4 > + */ > +#define AK4458_DIF_SHIFT 1 > +#define AK4458_DIF_MASK GENMASK(3, 1) > + > +#define AK4458_DIF_16BIT_LSB (0 << 1) > +#define AK4458_DIF_24BIT_I2S (3 << 1) > +#define AK4458_DIF_32BIT_LSB (5 << 1) > +#define AK4458_DIF_32BIT_MSB (6 << 1) > +#define AK4458_DIF_32BIT_I2S (7 << 1) > + > +/* AK4458_00_CONTROL1 (0x00) D0 bit */ > +#define AK4458_RSTN_MASK GENMASK(0, 0) > +#define AK4458_RSTN (0x1 << 0) > + > +/* AK4458_0A_CONTROL6 Mode bits */ > +#define AK4458_MODE_SHIFT 6 > +#define AK4458_MODE_MASK GENMASK(7, 6) > +#define AK4458_MODE_NORMAL (0 << AK4458_MODE_SHIFT) > +#define AK4458_MODE_TDM128 (1 << AK4458_MODE_SHIFT) > +#define AK4458_MODE_TDM256 (2 << AK4458_MODE_SHIFT) > +#define AK4458_MODE_TDM512 (3 << AK4458_MODE_SHIFT) > + > +/* DAC Digital attenuator transition time setting > + * Table 19 > + * Mode ATS1 ATS2 ATT speed > + * 0 0 0 4080/fs > + * 1 0 1 2040/fs > + * 2 1 0 510/fs > + * 3 1 1 255/fs > + * */ > +#define AK4458_ATS_SHIFT 6 > +#define AK4458_ATS_MASK GENMASK(7, 6) > + > +#endif /* _AK4458_H */ > -- > 2.7.4 > -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
