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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/codecs/wm8983.c | 1115 |
1 files changed, 1115 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c new file mode 100644 index 000000000..9f35801aa --- /dev/null +++ b/sound/soc/codecs/wm8983.c @@ -0,0 +1,1115 @@ +/* + * wm8983.c -- WM8983 ALSA SoC Audio driver + * + * Copyright 2011 Wolfson Microelectronics plc + * + * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#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_read32(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_read32(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_read32(component, WM8983_POWER_MANAGEMENT_2); + regpwr3 = snd_soc_component_read32(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) +{ + 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 = { + .digital_mute = wm8983_dac_mute, + .hw_params = wm8983_hw_params, + .set_fmt = wm8983_set_fmt, + .set_sysclk = wm8983_set_sysclk, + .set_pll = wm8983_set_pll +}; + +#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_rates = 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, + .non_legacy_dai_naming = 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_RBTREE, + .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, + const struct i2c_device_id *id) +{ + 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"); |