mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 20:25:31 +07:00
de03af5660
Keep headers sorted alphabetically. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
658 lines
18 KiB
C
658 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Audio driver for AK4458 DAC
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//
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// Copyright (C) 2016 Asahi Kasei Microdevices Corporation
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// Copyright 2018 NXP
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/of_gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <sound/initval.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/tlv.h>
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#include "ak4458.h"
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/* AK4458 Codec Private Data */
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struct ak4458_priv {
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struct device *dev;
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struct regmap *regmap;
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struct gpio_desc *reset_gpiod;
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struct gpio_desc *mute_gpiod;
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int digfil; /* SSLOW, SD, SLOW bits */
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int fs; /* sampling rate */
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int fmt;
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int slots;
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int slot_width;
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};
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static const struct reg_default ak4458_reg_defaults[] = {
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{ 0x00, 0x0C }, /* 0x00 AK4458_00_CONTROL1 */
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{ 0x01, 0x22 }, /* 0x01 AK4458_01_CONTROL2 */
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{ 0x02, 0x00 }, /* 0x02 AK4458_02_CONTROL3 */
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{ 0x03, 0xFF }, /* 0x03 AK4458_03_LCHATT */
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{ 0x04, 0xFF }, /* 0x04 AK4458_04_RCHATT */
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{ 0x05, 0x00 }, /* 0x05 AK4458_05_CONTROL4 */
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{ 0x06, 0x00 }, /* 0x06 AK4458_06_DSD1 */
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{ 0x07, 0x03 }, /* 0x07 AK4458_07_CONTROL5 */
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{ 0x08, 0x00 }, /* 0x08 AK4458_08_SOUND_CONTROL */
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{ 0x09, 0x00 }, /* 0x09 AK4458_09_DSD2 */
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{ 0x0A, 0x0D }, /* 0x0A AK4458_0A_CONTROL6 */
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{ 0x0B, 0x0C }, /* 0x0B AK4458_0B_CONTROL7 */
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{ 0x0C, 0x00 }, /* 0x0C AK4458_0C_CONTROL8 */
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{ 0x0D, 0x00 }, /* 0x0D AK4458_0D_CONTROL9 */
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{ 0x0E, 0x50 }, /* 0x0E AK4458_0E_CONTROL10 */
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{ 0x0F, 0xFF }, /* 0x0F AK4458_0F_L2CHATT */
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{ 0x10, 0xFF }, /* 0x10 AK4458_10_R2CHATT */
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{ 0x11, 0xFF }, /* 0x11 AK4458_11_L3CHATT */
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{ 0x12, 0xFF }, /* 0x12 AK4458_12_R3CHATT */
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{ 0x13, 0xFF }, /* 0x13 AK4458_13_L4CHATT */
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{ 0x14, 0xFF }, /* 0x14 AK4458_14_R4CHATT */
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};
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/*
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* Volume control:
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* from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB)
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*/
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static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
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/*
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* DEM1 bit DEM0 bit Mode
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* 0 0 44.1kHz
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* 0 1 OFF (default)
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* 1 0 48kHz
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* 1 1 32kHz
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*/
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static const char * const ak4458_dem_select_texts[] = {
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"44.1kHz", "OFF", "48kHz", "32kHz"
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};
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/*
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* SSLOW, SD, SLOW bits Digital Filter Setting
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* 0, 0, 0 : Sharp Roll-Off Filter
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* 0, 0, 1 : Slow Roll-Off Filter
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* 0, 1, 0 : Short delay Sharp Roll-Off Filter
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* 0, 1, 1 : Short delay Slow Roll-Off Filter
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* 1, *, * : Super Slow Roll-Off Filter
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*/
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static const char * const ak4458_digfil_select_texts[] = {
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"Sharp Roll-Off Filter",
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"Slow Roll-Off Filter",
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"Short delay Sharp Roll-Off Filter",
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"Short delay Slow Roll-Off Filter",
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"Super Slow Roll-Off Filter"
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};
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/*
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* DZFB: Inverting Enable of DZF
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* 0: DZF goes H at Zero Detection
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* 1: DZF goes L at Zero Detection
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*/
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static const char * const ak4458_dzfb_select_texts[] = {"H", "L"};
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/*
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* SC1-0 bits: Sound Mode Setting
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* 0 0 : Sound Mode 0
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* 0 1 : Sound Mode 1
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* 1 0 : Sound Mode 2
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* 1 1 : Reserved
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*/
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static const char * const ak4458_sc_select_texts[] = {
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"Sound Mode 0", "Sound Mode 1", "Sound Mode 2"
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};
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/* FIR2-0 bits: FIR Filter Mode Setting */
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static const char * const ak4458_fir_select_texts[] = {
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"Mode 0", "Mode 1", "Mode 2", "Mode 3",
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"Mode 4", "Mode 5", "Mode 6", "Mode 7",
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};
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/* ATS1-0 bits Attenuation Speed */
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static const char * const ak4458_ats_select_texts[] = {
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"4080/fs", "2040/fs", "510/fs", "255/fs",
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};
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/* DIF2 bit Audio Interface Format Setting(BICK fs) */
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static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",};
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static const struct soc_enum ak4458_dac1_dem_enum =
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SOC_ENUM_SINGLE(AK4458_01_CONTROL2, 1,
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ARRAY_SIZE(ak4458_dem_select_texts),
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ak4458_dem_select_texts);
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static const struct soc_enum ak4458_dac2_dem_enum =
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SOC_ENUM_SINGLE(AK4458_0A_CONTROL6, 0,
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ARRAY_SIZE(ak4458_dem_select_texts),
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ak4458_dem_select_texts);
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static const struct soc_enum ak4458_dac3_dem_enum =
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SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 4,
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ARRAY_SIZE(ak4458_dem_select_texts),
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ak4458_dem_select_texts);
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static const struct soc_enum ak4458_dac4_dem_enum =
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SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 6,
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ARRAY_SIZE(ak4458_dem_select_texts),
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ak4458_dem_select_texts);
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static const struct soc_enum ak4458_digfil_enum =
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts),
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ak4458_digfil_select_texts);
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static const struct soc_enum ak4458_dzfb_enum =
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SOC_ENUM_SINGLE(AK4458_02_CONTROL3, 2,
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ARRAY_SIZE(ak4458_dzfb_select_texts),
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ak4458_dzfb_select_texts);
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static const struct soc_enum ak4458_sm_enum =
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SOC_ENUM_SINGLE(AK4458_08_SOUND_CONTROL, 0,
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ARRAY_SIZE(ak4458_sc_select_texts),
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ak4458_sc_select_texts);
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static const struct soc_enum ak4458_fir_enum =
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SOC_ENUM_SINGLE(AK4458_0C_CONTROL8, 0,
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ARRAY_SIZE(ak4458_fir_select_texts),
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ak4458_fir_select_texts);
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static const struct soc_enum ak4458_ats_enum =
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SOC_ENUM_SINGLE(AK4458_0B_CONTROL7, 6,
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ARRAY_SIZE(ak4458_ats_select_texts),
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ak4458_ats_select_texts);
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static const struct soc_enum ak4458_dif_enum =
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SOC_ENUM_SINGLE(AK4458_00_CONTROL1, 3,
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ARRAY_SIZE(ak4458_dif_select_texts),
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ak4458_dif_select_texts);
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static int get_digfil(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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ucontrol->value.enumerated.item[0] = ak4458->digfil;
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return 0;
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}
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static int set_digfil(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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int num;
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num = ucontrol->value.enumerated.item[0];
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if (num > 4)
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return -EINVAL;
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ak4458->digfil = num;
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/* write SD bit */
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snd_soc_component_update_bits(component, AK4458_01_CONTROL2,
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AK4458_SD_MASK,
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((ak4458->digfil & 0x02) << 4));
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/* write SLOW bit */
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snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
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AK4458_SLOW_MASK,
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(ak4458->digfil & 0x01));
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/* write SSLOW bit */
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snd_soc_component_update_bits(component, AK4458_05_CONTROL4,
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AK4458_SSLOW_MASK,
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((ak4458->digfil & 0x04) >> 2));
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return 0;
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}
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static const struct snd_kcontrol_new ak4458_snd_controls[] = {
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SOC_DOUBLE_R_TLV("DAC1 Playback Volume", AK4458_03_LCHATT,
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AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv),
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SOC_DOUBLE_R_TLV("DAC2 Playback Volume", AK4458_0F_L2CHATT,
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AK4458_10_R2CHATT, 0, 0xFF, 0, dac_tlv),
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SOC_DOUBLE_R_TLV("DAC3 Playback Volume", AK4458_11_L3CHATT,
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AK4458_12_R3CHATT, 0, 0xFF, 0, dac_tlv),
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SOC_DOUBLE_R_TLV("DAC4 Playback Volume", AK4458_13_L4CHATT,
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AK4458_14_R4CHATT, 0, 0xFF, 0, dac_tlv),
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SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum),
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SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum),
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SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum),
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SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum),
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SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum,
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get_digfil, set_digfil),
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SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum),
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SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum),
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SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum),
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SOC_ENUM("AK4458 Attenuation transition Time Setting",
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ak4458_ats_enum),
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SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum),
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};
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/* ak4458 dapm widgets */
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static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = {
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SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/
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SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"),
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SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"),
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SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"),
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SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/
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SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"),
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};
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static const struct snd_soc_dapm_route ak4458_intercon[] = {
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{"AK4458 DAC1", NULL, "AK4458 SDTI"},
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{"AK4458 AOUTA", NULL, "AK4458 DAC1"},
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{"AK4458 DAC2", NULL, "AK4458 SDTI"},
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{"AK4458 AOUTB", NULL, "AK4458 DAC2"},
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{"AK4458 DAC3", NULL, "AK4458 SDTI"},
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{"AK4458 AOUTC", NULL, "AK4458 DAC3"},
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{"AK4458 DAC4", NULL, "AK4458 SDTI"},
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{"AK4458 AOUTD", NULL, "AK4458 DAC4"},
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};
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static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
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{
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int ret;
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if (bit)
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ret = snd_soc_component_update_bits(component,
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AK4458_00_CONTROL1,
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AK4458_RSTN_MASK,
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0x1);
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else
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ret = snd_soc_component_update_bits(component,
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AK4458_00_CONTROL1,
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AK4458_RSTN_MASK,
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0x0);
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return ret;
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}
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static int ak4458_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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int pcm_width = max(params_physical_width(params), ak4458->slot_width);
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int nfs1;
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u8 format;
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nfs1 = params_rate(params);
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ak4458->fs = nfs1;
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/* Master Clock Frequency Auto Setting Mode Enable */
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snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80);
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switch (pcm_width) {
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case 16:
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if (ak4458->fmt == SND_SOC_DAIFMT_I2S)
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format = AK4458_DIF_24BIT_I2S;
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else
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format = AK4458_DIF_16BIT_LSB;
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break;
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case 32:
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switch (ak4458->fmt) {
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case SND_SOC_DAIFMT_I2S:
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format = AK4458_DIF_32BIT_I2S;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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format = AK4458_DIF_32BIT_MSB;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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format = AK4458_DIF_32BIT_LSB;
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break;
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case SND_SOC_DAIFMT_DSP_B:
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format = AK4458_DIF_32BIT_MSB;
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break;
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default:
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return -EINVAL;
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}
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break;
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default:
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return -EINVAL;
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}
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snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
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AK4458_DIF_MASK, format);
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ak4458_rstn_control(component, 0);
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ak4458_rstn_control(component, 1);
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return 0;
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}
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static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_component *component = dai->component;
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBS_CFS: /* Slave Mode */
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break;
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case SND_SOC_DAIFMT_CBM_CFM: /* Master Mode is not supported */
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case SND_SOC_DAIFMT_CBS_CFM:
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case SND_SOC_DAIFMT_CBM_CFS:
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default:
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dev_err(component->dev, "Master mode unsupported\n");
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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case SND_SOC_DAIFMT_LEFT_J:
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case SND_SOC_DAIFMT_RIGHT_J:
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case SND_SOC_DAIFMT_DSP_B:
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ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
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break;
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default:
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dev_err(component->dev, "Audio format 0x%02X unsupported\n",
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fmt & SND_SOC_DAIFMT_FORMAT_MASK);
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return -EINVAL;
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}
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ak4458_rstn_control(component, 0);
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ak4458_rstn_control(component, 1);
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return 0;
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}
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static const int att_speed[] = { 4080, 2040, 510, 255 };
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static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute)
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{
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struct snd_soc_component *component = dai->component;
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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int nfs, ndt, ret, reg;
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int ats;
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nfs = ak4458->fs;
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reg = snd_soc_component_read32(component, AK4458_0B_CONTROL7);
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ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT;
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ndt = att_speed[ats] / (nfs / 1000);
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if (mute) {
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ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1);
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mdelay(ndt);
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if (ak4458->mute_gpiod)
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gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
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} else {
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if (ak4458->mute_gpiod)
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gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
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ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
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mdelay(ndt);
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}
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return 0;
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}
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static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
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unsigned int rx_mask, int slots, int slot_width)
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{
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struct snd_soc_component *component = dai->component;
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struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
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int mode;
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ak4458->slots = slots;
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ak4458->slot_width = slot_width;
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switch (slots * slot_width) {
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case 128:
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mode = AK4458_MODE_TDM128;
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break;
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case 256:
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mode = AK4458_MODE_TDM256;
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break;
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case 512:
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mode = AK4458_MODE_TDM512;
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break;
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default:
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mode = AK4458_MODE_NORMAL;
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break;
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}
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snd_soc_component_update_bits(component, AK4458_0A_CONTROL6,
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AK4458_MODE_MASK,
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mode);
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return 0;
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}
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#define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
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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_component *component)
|
|
{
|
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
|
|
|
|
/* External Mute ON */
|
|
if (ak4458->mute_gpiod)
|
|
gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
|
|
|
|
ak4458_power_on(ak4458);
|
|
|
|
snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
|
|
0x80, 0x80); /* ACKS bit = 1; 10000000 */
|
|
|
|
ak4458_rstn_control(component, 1);
|
|
}
|
|
|
|
static int ak4458_probe(struct snd_soc_component *component)
|
|
{
|
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
|
|
|
|
ak4458_init(component);
|
|
|
|
ak4458->fs = 48000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ak4458_remove(struct snd_soc_component *component)
|
|
{
|
|
struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
|
|
|
|
ak4458_power_off(ak4458);
|
|
}
|
|
|
|
#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_component_driver soc_codec_dev_ak4458 = {
|
|
.probe = ak4458_probe,
|
|
.remove = ak4458_remove,
|
|
.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),
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
.non_legacy_dai_naming = 1,
|
|
};
|
|
|
|
static 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,
|
|
};
|
|
|
|
static 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 = devm_snd_soc_register_component(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)
|
|
{
|
|
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@om.asahi-kasei.co.jp>");
|
|
MODULE_AUTHOR("Mihai Serban <mihai.serban@nxp.com>");
|
|
MODULE_DESCRIPTION("ASoC AK4458 DAC driver");
|
|
MODULE_LICENSE("GPL v2");
|