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linux-stable/sound/soc/codecs/wm8983.c
Mark Brown 20dbc7a892
ASoC: wm8983: Update to use maple tree register cache 
The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache. In
v6.5 it has also acquired the ability to generate multi-register writes in
sync operations, bringing performance up to parity with the rbtree cache
there.

Update the wm8983 driver to use the more modern data structure.

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230713-asoc-cirrus-maple-v1-43-a62651831735@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-18 14:45:42 +01:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* wm8983.c -- WM8983 ALSA SoC Audio driver
*
* Copyright 2011 Wolfson Microelectronics plc
*
* Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "wm8983.h"
static const struct reg_default wm8983_defaults[] = {
{ 0x01, 0x0000 }, /* R1 - Power management 1 */
{ 0x02, 0x0000 }, /* R2 - Power management 2 */
{ 0x03, 0x0000 }, /* R3 - Power management 3 */
{ 0x04, 0x0050 }, /* R4 - Audio Interface */
{ 0x05, 0x0000 }, /* R5 - Companding control */
{ 0x06, 0x0140 }, /* R6 - Clock Gen control */
{ 0x07, 0x0000 }, /* R7 - Additional control */
{ 0x08, 0x0000 }, /* R8 - GPIO Control */
{ 0x09, 0x0000 }, /* R9 - Jack Detect Control 1 */
{ 0x0A, 0x0000 }, /* R10 - DAC Control */
{ 0x0B, 0x00FF }, /* R11 - Left DAC digital Vol */
{ 0x0C, 0x00FF }, /* R12 - Right DAC digital vol */
{ 0x0D, 0x0000 }, /* R13 - Jack Detect Control 2 */
{ 0x0E, 0x0100 }, /* R14 - ADC Control */
{ 0x0F, 0x00FF }, /* R15 - Left ADC Digital Vol */
{ 0x10, 0x00FF }, /* R16 - Right ADC Digital Vol */
{ 0x12, 0x012C }, /* R18 - EQ1 - low shelf */
{ 0x13, 0x002C }, /* R19 - EQ2 - peak 1 */
{ 0x14, 0x002C }, /* R20 - EQ3 - peak 2 */
{ 0x15, 0x002C }, /* R21 - EQ4 - peak 3 */
{ 0x16, 0x002C }, /* R22 - EQ5 - high shelf */
{ 0x18, 0x0032 }, /* R24 - DAC Limiter 1 */
{ 0x19, 0x0000 }, /* R25 - DAC Limiter 2 */
{ 0x1B, 0x0000 }, /* R27 - Notch Filter 1 */
{ 0x1C, 0x0000 }, /* R28 - Notch Filter 2 */
{ 0x1D, 0x0000 }, /* R29 - Notch Filter 3 */
{ 0x1E, 0x0000 }, /* R30 - Notch Filter 4 */
{ 0x20, 0x0038 }, /* R32 - ALC control 1 */
{ 0x21, 0x000B }, /* R33 - ALC control 2 */
{ 0x22, 0x0032 }, /* R34 - ALC control 3 */
{ 0x23, 0x0000 }, /* R35 - Noise Gate */
{ 0x24, 0x0008 }, /* R36 - PLL N */
{ 0x25, 0x000C }, /* R37 - PLL K 1 */
{ 0x26, 0x0093 }, /* R38 - PLL K 2 */
{ 0x27, 0x00E9 }, /* R39 - PLL K 3 */
{ 0x29, 0x0000 }, /* R41 - 3D control */
{ 0x2A, 0x0000 }, /* R42 - OUT4 to ADC */
{ 0x2B, 0x0000 }, /* R43 - Beep control */
{ 0x2C, 0x0033 }, /* R44 - Input ctrl */
{ 0x2D, 0x0010 }, /* R45 - Left INP PGA gain ctrl */
{ 0x2E, 0x0010 }, /* R46 - Right INP PGA gain ctrl */
{ 0x2F, 0x0100 }, /* R47 - Left ADC BOOST ctrl */
{ 0x30, 0x0100 }, /* R48 - Right ADC BOOST ctrl */
{ 0x31, 0x0002 }, /* R49 - Output ctrl */
{ 0x32, 0x0001 }, /* R50 - Left mixer ctrl */
{ 0x33, 0x0001 }, /* R51 - Right mixer ctrl */
{ 0x34, 0x0039 }, /* R52 - LOUT1 (HP) volume ctrl */
{ 0x35, 0x0039 }, /* R53 - ROUT1 (HP) volume ctrl */
{ 0x36, 0x0039 }, /* R54 - LOUT2 (SPK) volume ctrl */
{ 0x37, 0x0039 }, /* R55 - ROUT2 (SPK) volume ctrl */
{ 0x38, 0x0001 }, /* R56 - OUT3 mixer ctrl */
{ 0x39, 0x0001 }, /* R57 - OUT4 (MONO) mix ctrl */
{ 0x3D, 0x0000 }, /* R61 - BIAS CTRL */
};
/* vol/gain update regs */
static const int vol_update_regs[] = {
WM8983_LEFT_DAC_DIGITAL_VOL,
WM8983_RIGHT_DAC_DIGITAL_VOL,
WM8983_LEFT_ADC_DIGITAL_VOL,
WM8983_RIGHT_ADC_DIGITAL_VOL,
WM8983_LOUT1_HP_VOLUME_CTRL,
WM8983_ROUT1_HP_VOLUME_CTRL,
WM8983_LOUT2_SPK_VOLUME_CTRL,
WM8983_ROUT2_SPK_VOLUME_CTRL,
WM8983_LEFT_INP_PGA_GAIN_CTRL,
WM8983_RIGHT_INP_PGA_GAIN_CTRL
};
struct wm8983_priv {
struct regmap *regmap;
u32 sysclk;
u32 bclk;
};
static const struct {
int div;
int ratio;
} fs_ratios[] = {
{ 10, 128 },
{ 15, 192 },
{ 20, 256 },
{ 30, 384 },
{ 40, 512 },
{ 60, 768 },
{ 80, 1024 },
{ 120, 1536 }
};
static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
static const int bclk_divs[] = {
1, 2, 4, 8, 16, 32
};
static int eqmode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
static int eqmode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
static SOC_ENUM_SINGLE_DECL(alc_sel, WM8983_ALC_CONTROL_1, 7, alc_sel_text);
static const char *alc_mode_text[] = { "ALC", "Limiter" };
static SOC_ENUM_SINGLE_DECL(alc_mode, WM8983_ALC_CONTROL_3, 8, alc_mode_text);
static const char *filter_mode_text[] = { "Audio", "Application" };
static SOC_ENUM_SINGLE_DECL(filter_mode, WM8983_ADC_CONTROL, 7,
filter_mode_text);
static const char *eq_bw_text[] = { "Narrow", "Wide" };
static const char *eqmode_text[] = { "Capture", "Playback" };
static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
static const char *eq1_cutoff_text[] = {
"80Hz", "105Hz", "135Hz", "175Hz"
};
static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8983_EQ1_LOW_SHELF, 5,
eq1_cutoff_text);
static const char *eq2_cutoff_text[] = {
"230Hz", "300Hz", "385Hz", "500Hz"
};
static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8983_EQ2_PEAK_1, 8, eq_bw_text);
static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8983_EQ2_PEAK_1, 5, eq2_cutoff_text);
static const char *eq3_cutoff_text[] = {
"650Hz", "850Hz", "1.1kHz", "1.4kHz"
};
static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8983_EQ3_PEAK_2, 8, eq_bw_text);
static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8983_EQ3_PEAK_2, 5, eq3_cutoff_text);
static const char *eq4_cutoff_text[] = {
"1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
};
static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8983_EQ4_PEAK_3, 8, eq_bw_text);
static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8983_EQ4_PEAK_3, 5, eq4_cutoff_text);
static const char *eq5_cutoff_text[] = {
"5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
};
static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8983_EQ5_HIGH_SHELF, 5,
eq5_cutoff_text);
static const char *depth_3d_text[] = {
"Off",
"6.67%",
"13.3%",
"20%",
"26.7%",
"33.3%",
"40%",
"46.6%",
"53.3%",
"60%",
"66.7%",
"73.3%",
"80%",
"86.7%",
"93.3%",
"100%"
};
static SOC_ENUM_SINGLE_DECL(depth_3d, WM8983_3D_CONTROL, 0,
depth_3d_text);
static const struct snd_kcontrol_new wm8983_snd_controls[] = {
SOC_SINGLE("Digital Loopback Switch", WM8983_COMPANDING_CONTROL,
0, 1, 0),
SOC_ENUM("ALC Capture Function", alc_sel),
SOC_SINGLE_TLV("ALC Capture Max Volume", WM8983_ALC_CONTROL_1,
3, 7, 0, alc_max_tlv),
SOC_SINGLE_TLV("ALC Capture Min Volume", WM8983_ALC_CONTROL_1,
0, 7, 0, alc_min_tlv),
SOC_SINGLE_TLV("ALC Capture Target Volume", WM8983_ALC_CONTROL_2,
0, 15, 0, alc_tar_tlv),
SOC_SINGLE("ALC Capture Attack", WM8983_ALC_CONTROL_3, 0, 10, 0),
SOC_SINGLE("ALC Capture Hold", WM8983_ALC_CONTROL_2, 4, 10, 0),
SOC_SINGLE("ALC Capture Decay", WM8983_ALC_CONTROL_3, 4, 10, 0),
SOC_ENUM("ALC Mode", alc_mode),
SOC_SINGLE("ALC Capture NG Switch", WM8983_NOISE_GATE,
3, 1, 0),
SOC_SINGLE("ALC Capture NG Threshold", WM8983_NOISE_GATE,
0, 7, 1),
SOC_DOUBLE_R_TLV("Capture Volume", WM8983_LEFT_ADC_DIGITAL_VOL,
WM8983_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
SOC_DOUBLE_R("Capture PGA ZC Switch", WM8983_LEFT_INP_PGA_GAIN_CTRL,
WM8983_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8983_LEFT_INP_PGA_GAIN_CTRL,
WM8983_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
WM8983_LEFT_ADC_BOOST_CTRL, WM8983_RIGHT_ADC_BOOST_CTRL,
8, 1, 0, pga_boost_tlv),
SOC_DOUBLE("ADC Inversion Switch", WM8983_ADC_CONTROL, 0, 1, 1, 0),
SOC_SINGLE("ADC 128x Oversampling Switch", WM8983_ADC_CONTROL, 8, 1, 0),
SOC_DOUBLE_R_TLV("Playback Volume", WM8983_LEFT_DAC_DIGITAL_VOL,
WM8983_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
SOC_SINGLE("DAC Playback Limiter Switch", WM8983_DAC_LIMITER_1, 8, 1, 0),
SOC_SINGLE("DAC Playback Limiter Decay", WM8983_DAC_LIMITER_1, 4, 10, 0),
SOC_SINGLE("DAC Playback Limiter Attack", WM8983_DAC_LIMITER_1, 0, 11, 0),
SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8983_DAC_LIMITER_2,
4, 7, 1, lim_thresh_tlv),
SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8983_DAC_LIMITER_2,
0, 12, 0, lim_boost_tlv),
SOC_DOUBLE("DAC Inversion Switch", WM8983_DAC_CONTROL, 0, 1, 1, 0),
SOC_SINGLE("DAC Auto Mute Switch", WM8983_DAC_CONTROL, 2, 1, 0),
SOC_SINGLE("DAC 128x Oversampling Switch", WM8983_DAC_CONTROL, 3, 1, 0),
SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8983_LOUT1_HP_VOLUME_CTRL,
WM8983_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
WM8983_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
SOC_DOUBLE_R("Headphone Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
WM8983_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8983_LOUT2_SPK_VOLUME_CTRL,
WM8983_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
WM8983_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
SOC_DOUBLE_R("Speaker Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
WM8983_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
SOC_SINGLE("OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
6, 1, 1),
SOC_SINGLE("OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
6, 1, 1),
SOC_SINGLE("High Pass Filter Switch", WM8983_ADC_CONTROL, 8, 1, 0),
SOC_ENUM("High Pass Filter Mode", filter_mode),
SOC_SINGLE("High Pass Filter Cutoff", WM8983_ADC_CONTROL, 4, 7, 0),
SOC_DOUBLE_R_TLV("Aux Bypass Volume",
WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 6, 7, 0,
aux_tlv),
SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 2, 7, 0,
bypass_tlv),
SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
SOC_SINGLE_TLV("EQ1 Volume", WM8983_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv),
SOC_ENUM("EQ2 Bandwidth", eq2_bw),
SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
SOC_SINGLE_TLV("EQ2 Volume", WM8983_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
SOC_ENUM("EQ3 Bandwidth", eq3_bw),
SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
SOC_SINGLE_TLV("EQ3 Volume", WM8983_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
SOC_ENUM("EQ4 Bandwidth", eq4_bw),
SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
SOC_SINGLE_TLV("EQ4 Volume", WM8983_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
SOC_SINGLE_TLV("EQ5 Volume", WM8983_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
SOC_ENUM("3D Depth", depth_3d),
};
static const struct snd_kcontrol_new left_out_mixer[] = {
SOC_DAPM_SINGLE("Line Switch", WM8983_LEFT_MIXER_CTRL, 1, 1, 0),
SOC_DAPM_SINGLE("Aux Switch", WM8983_LEFT_MIXER_CTRL, 5, 1, 0),
SOC_DAPM_SINGLE("PCM Switch", WM8983_LEFT_MIXER_CTRL, 0, 1, 0),
};
static const struct snd_kcontrol_new right_out_mixer[] = {
SOC_DAPM_SINGLE("Line Switch", WM8983_RIGHT_MIXER_CTRL, 1, 1, 0),
SOC_DAPM_SINGLE("Aux Switch", WM8983_RIGHT_MIXER_CTRL, 5, 1, 0),
SOC_DAPM_SINGLE("PCM Switch", WM8983_RIGHT_MIXER_CTRL, 0, 1, 0),
};
static const struct snd_kcontrol_new left_input_mixer[] = {
SOC_DAPM_SINGLE("L2 Switch", WM8983_INPUT_CTRL, 2, 1, 0),
SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 1, 1, 0),
SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 0, 1, 0),
};
static const struct snd_kcontrol_new right_input_mixer[] = {
SOC_DAPM_SINGLE("R2 Switch", WM8983_INPUT_CTRL, 6, 1, 0),
SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 5, 1, 0),
SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 4, 1, 0),
};
static const struct snd_kcontrol_new left_boost_mixer[] = {
SOC_DAPM_SINGLE_TLV("L2 Volume", WM8983_LEFT_ADC_BOOST_CTRL,
4, 7, 0, boost_tlv),
SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8983_LEFT_ADC_BOOST_CTRL,
0, 7, 0, boost_tlv)
};
static const struct snd_kcontrol_new out3_mixer[] = {
SOC_DAPM_SINGLE("LMIX2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
1, 1, 0),
SOC_DAPM_SINGLE("LDAC2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
0, 1, 0),
};
static const struct snd_kcontrol_new out4_mixer[] = {
SOC_DAPM_SINGLE("LMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
4, 1, 0),
SOC_DAPM_SINGLE("RMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
1, 1, 0),
SOC_DAPM_SINGLE("LDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
3, 1, 0),
SOC_DAPM_SINGLE("RDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
0, 1, 0),
};
static const struct snd_kcontrol_new right_boost_mixer[] = {
SOC_DAPM_SINGLE_TLV("R2 Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
4, 7, 0, boost_tlv),
SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
0, 7, 0, boost_tlv)
};
static const struct snd_soc_dapm_widget wm8983_dapm_widgets[] = {
SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8983_POWER_MANAGEMENT_3,
0, 0),
SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8983_POWER_MANAGEMENT_3,
1, 0),
SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8983_POWER_MANAGEMENT_2,
0, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8983_POWER_MANAGEMENT_2,
1, 0),
SND_SOC_DAPM_MIXER("Left Output Mixer", WM8983_POWER_MANAGEMENT_3,
2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
SND_SOC_DAPM_MIXER("Right Output Mixer", WM8983_POWER_MANAGEMENT_3,
3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
SND_SOC_DAPM_MIXER("Left Input Mixer", WM8983_POWER_MANAGEMENT_2,
2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
SND_SOC_DAPM_MIXER("Right Input Mixer", WM8983_POWER_MANAGEMENT_2,
3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8983_POWER_MANAGEMENT_2,
4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8983_POWER_MANAGEMENT_2,
5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
SND_SOC_DAPM_MIXER("OUT3 Mixer", WM8983_POWER_MANAGEMENT_1,
6, 0, out3_mixer, ARRAY_SIZE(out3_mixer)),
SND_SOC_DAPM_MIXER("OUT4 Mixer", WM8983_POWER_MANAGEMENT_1,
7, 0, out4_mixer, ARRAY_SIZE(out4_mixer)),
SND_SOC_DAPM_PGA("Left Capture PGA", WM8983_LEFT_INP_PGA_GAIN_CTRL,
6, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right Capture PGA", WM8983_RIGHT_INP_PGA_GAIN_CTRL,
6, 1, NULL, 0),
SND_SOC_DAPM_PGA("Left Headphone Out", WM8983_POWER_MANAGEMENT_2,
7, 0, NULL, 0),
SND_SOC_DAPM_PGA("Right Headphone Out", WM8983_POWER_MANAGEMENT_2,
8, 0, NULL, 0),
SND_SOC_DAPM_PGA("Left Speaker Out", WM8983_POWER_MANAGEMENT_3,
5, 0, NULL, 0),
SND_SOC_DAPM_PGA("Right Speaker Out", WM8983_POWER_MANAGEMENT_3,
6, 0, NULL, 0),
SND_SOC_DAPM_PGA("OUT3 Out", WM8983_POWER_MANAGEMENT_3,
7, 0, NULL, 0),
SND_SOC_DAPM_PGA("OUT4 Out", WM8983_POWER_MANAGEMENT_3,
8, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Mic Bias", WM8983_POWER_MANAGEMENT_1, 4, 0,
NULL, 0),
SND_SOC_DAPM_INPUT("LIN"),
SND_SOC_DAPM_INPUT("LIP"),
SND_SOC_DAPM_INPUT("RIN"),
SND_SOC_DAPM_INPUT("RIP"),
SND_SOC_DAPM_INPUT("AUXL"),
SND_SOC_DAPM_INPUT("AUXR"),
SND_SOC_DAPM_INPUT("L2"),
SND_SOC_DAPM_INPUT("R2"),
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
SND_SOC_DAPM_OUTPUT("SPKL"),
SND_SOC_DAPM_OUTPUT("SPKR"),
SND_SOC_DAPM_OUTPUT("OUT3"),
SND_SOC_DAPM_OUTPUT("OUT4")
};
static const struct snd_soc_dapm_route wm8983_audio_map[] = {
{ "OUT3 Mixer", "LMIX2OUT3 Switch", "Left Output Mixer" },
{ "OUT3 Mixer", "LDAC2OUT3 Switch", "Left DAC" },
{ "OUT3 Out", NULL, "OUT3 Mixer" },
{ "OUT3", NULL, "OUT3 Out" },
{ "OUT4 Mixer", "LMIX2OUT4 Switch", "Left Output Mixer" },
{ "OUT4 Mixer", "RMIX2OUT4 Switch", "Right Output Mixer" },
{ "OUT4 Mixer", "LDAC2OUT4 Switch", "Left DAC" },
{ "OUT4 Mixer", "RDAC2OUT4 Switch", "Right DAC" },
{ "OUT4 Out", NULL, "OUT4 Mixer" },
{ "OUT4", NULL, "OUT4 Out" },
{ "Right Output Mixer", "PCM Switch", "Right DAC" },
{ "Right Output Mixer", "Aux Switch", "AUXR" },
{ "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
{ "Left Output Mixer", "PCM Switch", "Left DAC" },
{ "Left Output Mixer", "Aux Switch", "AUXL" },
{ "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
{ "Right Headphone Out", NULL, "Right Output Mixer" },
{ "HPR", NULL, "Right Headphone Out" },
{ "Left Headphone Out", NULL, "Left Output Mixer" },
{ "HPL", NULL, "Left Headphone Out" },
{ "Right Speaker Out", NULL, "Right Output Mixer" },
{ "SPKR", NULL, "Right Speaker Out" },
{ "Left Speaker Out", NULL, "Left Output Mixer" },
{ "SPKL", NULL, "Left Speaker Out" },
{ "Right ADC", NULL, "Right Boost Mixer" },
{ "Right Boost Mixer", "AUXR Volume", "AUXR" },
{ "Right Boost Mixer", NULL, "Right Capture PGA" },
{ "Right Boost Mixer", "R2 Volume", "R2" },
{ "Left ADC", NULL, "Left Boost Mixer" },
{ "Left Boost Mixer", "AUXL Volume", "AUXL" },
{ "Left Boost Mixer", NULL, "Left Capture PGA" },
{ "Left Boost Mixer", "L2 Volume", "L2" },
{ "Right Capture PGA", NULL, "Right Input Mixer" },
{ "Left Capture PGA", NULL, "Left Input Mixer" },
{ "Right Input Mixer", "R2 Switch", "R2" },
{ "Right Input Mixer", "MicN Switch", "RIN" },
{ "Right Input Mixer", "MicP Switch", "RIP" },
{ "Left Input Mixer", "L2 Switch", "L2" },
{ "Left Input Mixer", "MicN Switch", "LIN" },
{ "Left Input Mixer", "MicP Switch", "LIP" },
};
static int eqmode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
unsigned int reg;
reg = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF);
if (reg & WM8983_EQ3DMODE)
ucontrol->value.enumerated.item[0] = 1;
else
ucontrol->value.enumerated.item[0] = 0;
return 0;
}
static int eqmode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
unsigned int regpwr2, regpwr3;
unsigned int reg_eq;
if (ucontrol->value.enumerated.item[0] != 0
&& ucontrol->value.enumerated.item[0] != 1)
return -EINVAL;
reg_eq = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF);
switch ((reg_eq & WM8983_EQ3DMODE) >> WM8983_EQ3DMODE_SHIFT) {
case 0:
if (!ucontrol->value.enumerated.item[0])
return 0;
break;
case 1:
if (ucontrol->value.enumerated.item[0])
return 0;
break;
}
regpwr2 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_2);
regpwr3 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_3);
/* disable the DACs and ADCs */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_2,
WM8983_ADCENR_MASK | WM8983_ADCENL_MASK, 0);
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_3,
WM8983_DACENR_MASK | WM8983_DACENL_MASK, 0);
/* set the desired eqmode */
snd_soc_component_update_bits(component, WM8983_EQ1_LOW_SHELF,
WM8983_EQ3DMODE_MASK,
ucontrol->value.enumerated.item[0]
<< WM8983_EQ3DMODE_SHIFT);
/* restore DAC/ADC configuration */
snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, regpwr2);
snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, regpwr3);
return 0;
}
static bool wm8983_writeable(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8983_SOFTWARE_RESET ... WM8983_RIGHT_ADC_DIGITAL_VOL:
case WM8983_EQ1_LOW_SHELF ... WM8983_DAC_LIMITER_2:
case WM8983_NOTCH_FILTER_1 ... WM8983_NOTCH_FILTER_4:
case WM8983_ALC_CONTROL_1 ... WM8983_PLL_K_3:
case WM8983_3D_CONTROL ... WM8983_OUT4_MONO_MIX_CTRL:
case WM8983_BIAS_CTRL:
return true;
default:
return false;
}
}
static int wm8983_dac_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
return snd_soc_component_update_bits(component, WM8983_DAC_CONTROL,
WM8983_SOFTMUTE_MASK,
!!mute << WM8983_SOFTMUTE_SHIFT);
}
static int wm8983_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
u16 format, master, bcp, lrp;
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
format = 0x2;
break;
case SND_SOC_DAIFMT_RIGHT_J:
format = 0x0;
break;
case SND_SOC_DAIFMT_LEFT_J:
format = 0x1;
break;
case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
format = 0x3;
break;
default:
dev_err(dai->dev, "Unknown dai format\n");
return -EINVAL;
}
snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
WM8983_FMT_MASK, format << WM8983_FMT_SHIFT);
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
master = 1;
break;
case SND_SOC_DAIFMT_CBS_CFS:
master = 0;
break;
default:
dev_err(dai->dev, "Unknown master/slave configuration\n");
return -EINVAL;
}
snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
WM8983_MS_MASK, master << WM8983_MS_SHIFT);
/* FIXME: We don't currently support DSP A/B modes */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
dev_err(dai->dev, "DSP A/B modes are not supported\n");
return -EINVAL;
default:
break;
}
bcp = lrp = 0;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
bcp = lrp = 1;
break;
case SND_SOC_DAIFMT_IB_NF:
bcp = 1;
break;
case SND_SOC_DAIFMT_NB_IF:
lrp = 1;
break;
default:
dev_err(dai->dev, "Unknown polarity configuration\n");
return -EINVAL;
}
snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
WM8983_LRCP_MASK, lrp << WM8983_LRCP_SHIFT);
snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
WM8983_BCP_MASK, bcp << WM8983_BCP_SHIFT);
return 0;
}
static int wm8983_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
int i;
struct snd_soc_component *component = dai->component;
struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
u16 blen, srate_idx;
u32 tmp;
int srate_best;
int ret;
ret = snd_soc_params_to_bclk(params);
if (ret < 0) {
dev_err(component->dev, "Failed to convert params to bclk: %d\n", ret);
return ret;
}
wm8983->bclk = ret;
switch (params_width(params)) {
case 16:
blen = 0x0;
break;
case 20:
blen = 0x1;
break;
case 24:
blen = 0x2;
break;
case 32:
blen = 0x3;
break;
default:
dev_err(dai->dev, "Unsupported word length %u\n",
params_width(params));
return -EINVAL;
}
snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
WM8983_WL_MASK, blen << WM8983_WL_SHIFT);
/*
* match to the nearest possible sample rate and rely
* on the array index to configure the SR register
*/
srate_idx = 0;
srate_best = abs(srates[0] - params_rate(params));
for (i = 1; i < ARRAY_SIZE(srates); ++i) {
if (abs(srates[i] - params_rate(params)) >= srate_best)
continue;
srate_idx = i;
srate_best = abs(srates[i] - params_rate(params));
}
dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
snd_soc_component_update_bits(component, WM8983_ADDITIONAL_CONTROL,
WM8983_SR_MASK, srate_idx << WM8983_SR_SHIFT);
dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8983->bclk);
dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8983->sysclk);
for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
if (wm8983->sysclk / params_rate(params)
== fs_ratios[i].ratio)
break;
}
if (i == ARRAY_SIZE(fs_ratios)) {
dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
wm8983->sysclk, params_rate(params));
return -EINVAL;
}
dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
WM8983_MCLKDIV_MASK, i << WM8983_MCLKDIV_SHIFT);
/* select the appropriate bclk divider */
tmp = (wm8983->sysclk / fs_ratios[i].div) * 10;
for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
if (wm8983->bclk == tmp / bclk_divs[i])
break;
}
if (i == ARRAY_SIZE(bclk_divs)) {
dev_err(dai->dev, "No matching BCLK divider found\n");
return -EINVAL;
}
dev_dbg(dai->dev, "BCLK div = %d\n", i);
snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
WM8983_BCLKDIV_MASK, i << WM8983_BCLKDIV_SHIFT);
return 0;
}
struct pll_div {
u32 div2:1;
u32 n:4;
u32 k:24;
};
#define FIXED_PLL_SIZE ((1ULL << 24) * 10)
static int pll_factors(struct pll_div *pll_div, unsigned int target,
unsigned int source)
{
u64 Kpart;
unsigned long int K, Ndiv, Nmod;
pll_div->div2 = 0;
Ndiv = target / source;
if (Ndiv < 6) {
source >>= 1;
pll_div->div2 = 1;
Ndiv = target / source;
}
if (Ndiv < 6 || Ndiv > 12) {
printk(KERN_ERR "%s: WM8983 N value is not within"
" the recommended range: %lu\n", __func__, Ndiv);
return -EINVAL;
}
pll_div->n = Ndiv;
Nmod = target % source;
Kpart = FIXED_PLL_SIZE * (u64)Nmod;
do_div(Kpart, source);
K = Kpart & 0xffffffff;
if ((K % 10) >= 5)
K += 5;
K /= 10;
pll_div->k = K;
return 0;
}
static int wm8983_set_pll(struct snd_soc_dai *dai, int pll_id,
int source, unsigned int freq_in,
unsigned int freq_out)
{
int ret;
struct snd_soc_component *component;
struct pll_div pll_div;
component = dai->component;
if (!freq_in || !freq_out) {
/* disable the PLL */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_PLLEN_MASK, 0);
return 0;
} else {
ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
if (ret)
return ret;
/* disable the PLL before re-programming it */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_PLLEN_MASK, 0);
/* set PLLN and PRESCALE */
snd_soc_component_write(component, WM8983_PLL_N,
(pll_div.div2 << WM8983_PLL_PRESCALE_SHIFT)
| pll_div.n);
/* set PLLK */
snd_soc_component_write(component, WM8983_PLL_K_3, pll_div.k & 0x1ff);
snd_soc_component_write(component, WM8983_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
snd_soc_component_write(component, WM8983_PLL_K_1, (pll_div.k >> 18));
/* enable the PLL */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_PLLEN_MASK, WM8983_PLLEN);
}
return 0;
}
static int wm8983_set_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *component = dai->component;
struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
switch (clk_id) {
case WM8983_CLKSRC_MCLK:
snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
WM8983_CLKSEL_MASK, 0);
break;
case WM8983_CLKSRC_PLL:
snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
WM8983_CLKSEL_MASK, WM8983_CLKSEL);
break;
default:
dev_err(dai->dev, "Unknown clock source: %d\n", clk_id);
return -EINVAL;
}
wm8983->sysclk = freq;
return 0;
}
static int wm8983_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
/* VMID at 100k */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_VMIDSEL_MASK,
1 << WM8983_VMIDSEL_SHIFT);
break;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
ret = regcache_sync(wm8983->regmap);
if (ret < 0) {
dev_err(component->dev, "Failed to sync cache: %d\n", ret);
return ret;
}
/* enable anti-pop features */
snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC,
WM8983_POBCTRL_MASK | WM8983_DELEN_MASK,
WM8983_POBCTRL | WM8983_DELEN);
/* enable thermal shutdown */
snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL,
WM8983_TSDEN_MASK, WM8983_TSDEN);
/* enable BIASEN */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_BIASEN_MASK, WM8983_BIASEN);
/* VMID at 100k */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_VMIDSEL_MASK,
1 << WM8983_VMIDSEL_SHIFT);
msleep(250);
/* disable anti-pop features */
snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC,
WM8983_POBCTRL_MASK |
WM8983_DELEN_MASK, 0);
}
/* VMID at 500k */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_VMIDSEL_MASK,
2 << WM8983_VMIDSEL_SHIFT);
break;
case SND_SOC_BIAS_OFF:
/* disable thermal shutdown */
snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL,
WM8983_TSDEN_MASK, 0);
/* disable VMIDSEL and BIASEN */
snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
WM8983_VMIDSEL_MASK | WM8983_BIASEN_MASK,
0);
/* wait for VMID to discharge */
msleep(100);
snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_1, 0);
snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, 0);
snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, 0);
break;
}
return 0;
}
static int wm8983_probe(struct snd_soc_component *component)
{
int ret;
int i;
ret = snd_soc_component_write(component, WM8983_SOFTWARE_RESET, 0);
if (ret < 0) {
dev_err(component->dev, "Failed to issue reset: %d\n", ret);
return ret;
}
/* set the vol/gain update bits */
for (i = 0; i < ARRAY_SIZE(vol_update_regs); ++i)
snd_soc_component_update_bits(component, vol_update_regs[i],
0x100, 0x100);
/* mute all outputs and set PGAs to minimum gain */
for (i = WM8983_LOUT1_HP_VOLUME_CTRL;
i <= WM8983_OUT4_MONO_MIX_CTRL; ++i)
snd_soc_component_update_bits(component, i, 0x40, 0x40);
/* enable soft mute */
snd_soc_component_update_bits(component, WM8983_DAC_CONTROL,
WM8983_SOFTMUTE_MASK,
WM8983_SOFTMUTE);
/* enable BIASCUT */
snd_soc_component_update_bits(component, WM8983_BIAS_CTRL,
WM8983_BIASCUT, WM8983_BIASCUT);
return 0;
}
static const struct snd_soc_dai_ops wm8983_dai_ops = {
.mute_stream = wm8983_dac_mute,
.hw_params = wm8983_hw_params,
.set_fmt = wm8983_set_fmt,
.set_sysclk = wm8983_set_sysclk,
.set_pll = wm8983_set_pll,
.no_capture_mute = 1,
};
#define WM8983_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static struct snd_soc_dai_driver wm8983_dai = {
.name = "wm8983-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = WM8983_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = WM8983_FORMATS,
},
.ops = &wm8983_dai_ops,
.symmetric_rate = 1
};
static const struct snd_soc_component_driver soc_component_dev_wm8983 = {
.probe = wm8983_probe,
.set_bias_level = wm8983_set_bias_level,
.controls = wm8983_snd_controls,
.num_controls = ARRAY_SIZE(wm8983_snd_controls),
.dapm_widgets = wm8983_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8983_dapm_widgets),
.dapm_routes = wm8983_audio_map,
.num_dapm_routes = ARRAY_SIZE(wm8983_audio_map),
.suspend_bias_off = 1,
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static const struct regmap_config wm8983_regmap = {
.reg_bits = 7,
.val_bits = 9,
.reg_defaults = wm8983_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8983_defaults),
.cache_type = REGCACHE_MAPLE,
.max_register = WM8983_MAX_REGISTER,
.writeable_reg = wm8983_writeable,
};
#if defined(CONFIG_SPI_MASTER)
static int wm8983_spi_probe(struct spi_device *spi)
{
struct wm8983_priv *wm8983;
int ret;
wm8983 = devm_kzalloc(&spi->dev, sizeof *wm8983, GFP_KERNEL);
if (!wm8983)
return -ENOMEM;
wm8983->regmap = devm_regmap_init_spi(spi, &wm8983_regmap);
if (IS_ERR(wm8983->regmap)) {
ret = PTR_ERR(wm8983->regmap);
dev_err(&spi->dev, "Failed to init regmap: %d\n", ret);
return ret;
}
spi_set_drvdata(spi, wm8983);
ret = devm_snd_soc_register_component(&spi->dev,
&soc_component_dev_wm8983, &wm8983_dai, 1);
return ret;
}
static struct spi_driver wm8983_spi_driver = {
.driver = {
.name = "wm8983",
},
.probe = wm8983_spi_probe,
};
#endif
#if IS_ENABLED(CONFIG_I2C)
static int wm8983_i2c_probe(struct i2c_client *i2c)
{
struct wm8983_priv *wm8983;
int ret;
wm8983 = devm_kzalloc(&i2c->dev, sizeof *wm8983, GFP_KERNEL);
if (!wm8983)
return -ENOMEM;
wm8983->regmap = devm_regmap_init_i2c(i2c, &wm8983_regmap);
if (IS_ERR(wm8983->regmap)) {
ret = PTR_ERR(wm8983->regmap);
dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, wm8983);
ret = devm_snd_soc_register_component(&i2c->dev,
&soc_component_dev_wm8983, &wm8983_dai, 1);
return ret;
}
static const struct i2c_device_id wm8983_i2c_id[] = {
{ "wm8983", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8983_i2c_id);
static struct i2c_driver wm8983_i2c_driver = {
.driver = {
.name = "wm8983",
},
.probe = wm8983_i2c_probe,
.id_table = wm8983_i2c_id
};
#endif
static int __init wm8983_modinit(void)
{
int ret = 0;
#if IS_ENABLED(CONFIG_I2C)
ret = i2c_add_driver(&wm8983_i2c_driver);
if (ret) {
printk(KERN_ERR "Failed to register wm8983 I2C driver: %d\n",
ret);
}
#endif
#if defined(CONFIG_SPI_MASTER)
ret = spi_register_driver(&wm8983_spi_driver);
if (ret != 0) {
printk(KERN_ERR "Failed to register wm8983 SPI driver: %d\n",
ret);
}
#endif
return ret;
}
module_init(wm8983_modinit);
static void __exit wm8983_exit(void)
{
#if IS_ENABLED(CONFIG_I2C)
i2c_del_driver(&wm8983_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
spi_unregister_driver(&wm8983_spi_driver);
#endif
}
module_exit(wm8983_exit);
MODULE_DESCRIPTION("ASoC WM8983 driver");
MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
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