[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/soc/codecs/wm8991.c b/src/kernel/linux/v4.14/sound/soc/codecs/wm8991.c
new file mode 100644
index 0000000..802c069
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/soc/codecs/wm8991.c
@@ -0,0 +1,1354 @@
+/*
+ * wm8991.c -- WM8991 ALSA Soc Audio driver
+ *
+ * Copyright 2007-2010 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * Graeme.Gregory@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <asm/div64.h>
+
+#include "wm8991.h"
+
+struct wm8991_priv {
+ struct regmap *regmap;
+ unsigned int pcmclk;
+};
+
+static const struct reg_default wm8991_reg_defaults[] = {
+ { 1, 0x0000 }, /* R1 - Power Management (1) */
+ { 2, 0x6000 }, /* R2 - Power Management (2) */
+ { 3, 0x0000 }, /* R3 - Power Management (3) */
+ { 4, 0x4050 }, /* R4 - Audio Interface (1) */
+ { 5, 0x4000 }, /* R5 - Audio Interface (2) */
+ { 6, 0x01C8 }, /* R6 - Clocking (1) */
+ { 7, 0x0000 }, /* R7 - Clocking (2) */
+ { 8, 0x0040 }, /* R8 - Audio Interface (3) */
+ { 9, 0x0040 }, /* R9 - Audio Interface (4) */
+ { 10, 0x0004 }, /* R10 - DAC CTRL */
+ { 11, 0x00C0 }, /* R11 - Left DAC Digital Volume */
+ { 12, 0x00C0 }, /* R12 - Right DAC Digital Volume */
+ { 13, 0x0000 }, /* R13 - Digital Side Tone */
+ { 14, 0x0100 }, /* R14 - ADC CTRL */
+ { 15, 0x00C0 }, /* R15 - Left ADC Digital Volume */
+ { 16, 0x00C0 }, /* R16 - Right ADC Digital Volume */
+
+ { 18, 0x0000 }, /* R18 - GPIO CTRL 1 */
+ { 19, 0x1000 }, /* R19 - GPIO1 & GPIO2 */
+ { 20, 0x1010 }, /* R20 - GPIO3 & GPIO4 */
+ { 21, 0x1010 }, /* R21 - GPIO5 & GPIO6 */
+ { 22, 0x8000 }, /* R22 - GPIOCTRL 2 */
+ { 23, 0x0800 }, /* R23 - GPIO_POL */
+ { 24, 0x008B }, /* R24 - Left Line Input 1&2 Volume */
+ { 25, 0x008B }, /* R25 - Left Line Input 3&4 Volume */
+ { 26, 0x008B }, /* R26 - Right Line Input 1&2 Volume */
+ { 27, 0x008B }, /* R27 - Right Line Input 3&4 Volume */
+ { 28, 0x0000 }, /* R28 - Left Output Volume */
+ { 29, 0x0000 }, /* R29 - Right Output Volume */
+ { 30, 0x0066 }, /* R30 - Line Outputs Volume */
+ { 31, 0x0022 }, /* R31 - Out3/4 Volume */
+ { 32, 0x0079 }, /* R32 - Left OPGA Volume */
+ { 33, 0x0079 }, /* R33 - Right OPGA Volume */
+ { 34, 0x0003 }, /* R34 - Speaker Volume */
+ { 35, 0x0003 }, /* R35 - ClassD1 */
+
+ { 37, 0x0100 }, /* R37 - ClassD3 */
+
+ { 39, 0x0000 }, /* R39 - Input Mixer1 */
+ { 40, 0x0000 }, /* R40 - Input Mixer2 */
+ { 41, 0x0000 }, /* R41 - Input Mixer3 */
+ { 42, 0x0000 }, /* R42 - Input Mixer4 */
+ { 43, 0x0000 }, /* R43 - Input Mixer5 */
+ { 44, 0x0000 }, /* R44 - Input Mixer6 */
+ { 45, 0x0000 }, /* R45 - Output Mixer1 */
+ { 46, 0x0000 }, /* R46 - Output Mixer2 */
+ { 47, 0x0000 }, /* R47 - Output Mixer3 */
+ { 48, 0x0000 }, /* R48 - Output Mixer4 */
+ { 49, 0x0000 }, /* R49 - Output Mixer5 */
+ { 50, 0x0000 }, /* R50 - Output Mixer6 */
+ { 51, 0x0180 }, /* R51 - Out3/4 Mixer */
+ { 52, 0x0000 }, /* R52 - Line Mixer1 */
+ { 53, 0x0000 }, /* R53 - Line Mixer2 */
+ { 54, 0x0000 }, /* R54 - Speaker Mixer */
+ { 55, 0x0000 }, /* R55 - Additional Control */
+ { 56, 0x0000 }, /* R56 - AntiPOP1 */
+ { 57, 0x0000 }, /* R57 - AntiPOP2 */
+ { 58, 0x0000 }, /* R58 - MICBIAS */
+
+ { 60, 0x0008 }, /* R60 - PLL1 */
+ { 61, 0x0031 }, /* R61 - PLL2 */
+ { 62, 0x0026 }, /* R62 - PLL3 */
+};
+
+static bool wm8991_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8991_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_pga_tlv, -1650, 150, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(out_mix_tlv, -2100, 300, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_pga_tlv,
+ 0x00, 0x2f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(SNDRV_CTL_TLVD_DB_GAIN_MUTE, 0, 1),
+ 0x30, 0x7f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-7300, 100, 0),
+);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_dac_tlv,
+ 0x00, 0xbf, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
+ 0xc0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
+);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(in_adc_tlv,
+ 0x00, 0xef, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
+ 0xf0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(17625, 0, 0),
+);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_sidetone_tlv,
+ 0x00, 0x0c, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-3600, 300, 0),
+ 0x0d, 0x0f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
+);
+
+static int wm899x_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ int reg = kcontrol->private_value & 0xff;
+ int ret;
+ u16 val;
+
+ ret = snd_soc_put_volsw(kcontrol, ucontrol);
+ if (ret < 0)
+ return ret;
+
+ /* now hit the volume update bits (always bit 8) */
+ val = snd_soc_read(codec, reg);
+ return snd_soc_write(codec, reg, val | 0x0100);
+}
+
+static const char *wm8991_digital_sidetone[] =
+{"None", "Left ADC", "Right ADC", "Reserved"};
+
+static SOC_ENUM_SINGLE_DECL(wm8991_left_digital_sidetone_enum,
+ WM8991_DIGITAL_SIDE_TONE,
+ WM8991_ADC_TO_DACL_SHIFT,
+ wm8991_digital_sidetone);
+
+static SOC_ENUM_SINGLE_DECL(wm8991_right_digital_sidetone_enum,
+ WM8991_DIGITAL_SIDE_TONE,
+ WM8991_ADC_TO_DACR_SHIFT,
+ wm8991_digital_sidetone);
+
+static const char *wm8991_adcmode[] =
+{"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
+
+static SOC_ENUM_SINGLE_DECL(wm8991_right_adcmode_enum,
+ WM8991_ADC_CTRL,
+ WM8991_ADC_HPF_CUT_SHIFT,
+ wm8991_adcmode);
+
+static const struct snd_kcontrol_new wm8991_snd_controls[] = {
+ /* INMIXL */
+ SOC_SINGLE("LIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L12MNBST_BIT, 1, 0),
+ SOC_SINGLE("LIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L34MNBST_BIT, 1, 0),
+ /* INMIXR */
+ SOC_SINGLE("RIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R12MNBST_BIT, 1, 0),
+ SOC_SINGLE("RIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R34MNBST_BIT, 1, 0),
+
+ /* LOMIX */
+ SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER3,
+ WM8991_LLI3LOVOL_SHIFT, WM8991_LLI3LOVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
+ WM8991_LR12LOVOL_SHIFT, WM8991_LR12LOVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
+ WM8991_LL12LOVOL_SHIFT, WM8991_LL12LOVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER5,
+ WM8991_LRI3LOVOL_SHIFT, WM8991_LRI3LOVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
+ WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
+ WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
+
+ /* ROMIX */
+ SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER4,
+ WM8991_RRI3ROVOL_SHIFT, WM8991_RRI3ROVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
+ WM8991_RL12ROVOL_SHIFT, WM8991_RL12ROVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
+ WM8991_RR12ROVOL_SHIFT, WM8991_RR12ROVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER6,
+ WM8991_RLI3ROVOL_SHIFT, WM8991_RLI3ROVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
+ WM8991_RLBROVOL_SHIFT, WM8991_RLBROVOL_MASK, 1, out_mix_tlv),
+ SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
+ WM8991_RRBROVOL_SHIFT, WM8991_RRBROVOL_MASK, 1, out_mix_tlv),
+
+ /* LOUT */
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8991_LEFT_OUTPUT_VOLUME,
+ WM8991_LOUTVOL_SHIFT, WM8991_LOUTVOL_MASK, 0, out_pga_tlv),
+ SOC_SINGLE("LOUT ZC", WM8991_LEFT_OUTPUT_VOLUME, WM8991_LOZC_BIT, 1, 0),
+
+ /* ROUT */
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8991_RIGHT_OUTPUT_VOLUME,
+ WM8991_ROUTVOL_SHIFT, WM8991_ROUTVOL_MASK, 0, out_pga_tlv),
+ SOC_SINGLE("ROUT ZC", WM8991_RIGHT_OUTPUT_VOLUME, WM8991_ROZC_BIT, 1, 0),
+
+ /* LOPGA */
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8991_LEFT_OPGA_VOLUME,
+ WM8991_LOPGAVOL_SHIFT, WM8991_LOPGAVOL_MASK, 0, out_pga_tlv),
+ SOC_SINGLE("LOPGA ZC Switch", WM8991_LEFT_OPGA_VOLUME,
+ WM8991_LOPGAZC_BIT, 1, 0),
+
+ /* ROPGA */
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8991_RIGHT_OPGA_VOLUME,
+ WM8991_ROPGAVOL_SHIFT, WM8991_ROPGAVOL_MASK, 0, out_pga_tlv),
+ SOC_SINGLE("ROPGA ZC Switch", WM8991_RIGHT_OPGA_VOLUME,
+ WM8991_ROPGAZC_BIT, 1, 0),
+
+ SOC_SINGLE("LON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_LONMUTE_BIT, 1, 0),
+ SOC_SINGLE("LOP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_LOPMUTE_BIT, 1, 0),
+ SOC_SINGLE("LOP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_LOATTN_BIT, 1, 0),
+ SOC_SINGLE("RON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_RONMUTE_BIT, 1, 0),
+ SOC_SINGLE("ROP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_ROPMUTE_BIT, 1, 0),
+ SOC_SINGLE("ROP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
+ WM8991_ROATTN_BIT, 1, 0),
+
+ SOC_SINGLE("OUT3 Mute Switch", WM8991_OUT3_4_VOLUME,
+ WM8991_OUT3MUTE_BIT, 1, 0),
+ SOC_SINGLE("OUT3 Attenuation Switch", WM8991_OUT3_4_VOLUME,
+ WM8991_OUT3ATTN_BIT, 1, 0),
+
+ SOC_SINGLE("OUT4 Mute Switch", WM8991_OUT3_4_VOLUME,
+ WM8991_OUT4MUTE_BIT, 1, 0),
+ SOC_SINGLE("OUT4 Attenuation Switch", WM8991_OUT3_4_VOLUME,
+ WM8991_OUT4ATTN_BIT, 1, 0),
+
+ SOC_SINGLE("Speaker Mode Switch", WM8991_CLASSD1,
+ WM8991_CDMODE_BIT, 1, 0),
+
+ SOC_SINGLE("Speaker Output Attenuation Volume", WM8991_SPEAKER_VOLUME,
+ WM8991_SPKVOL_SHIFT, WM8991_SPKVOL_MASK, 0),
+ SOC_SINGLE("Speaker DC Boost Volume", WM8991_CLASSD3,
+ WM8991_DCGAIN_SHIFT, WM8991_DCGAIN_MASK, 0),
+ SOC_SINGLE("Speaker AC Boost Volume", WM8991_CLASSD3,
+ WM8991_ACGAIN_SHIFT, WM8991_ACGAIN_MASK, 0),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
+ WM8991_LEFT_DAC_DIGITAL_VOLUME,
+ WM8991_DACL_VOL_SHIFT,
+ WM8991_DACL_VOL_MASK,
+ 0,
+ out_dac_tlv),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
+ WM8991_RIGHT_DAC_DIGITAL_VOLUME,
+ WM8991_DACR_VOL_SHIFT,
+ WM8991_DACR_VOL_MASK,
+ 0,
+ out_dac_tlv),
+
+ SOC_ENUM("Left Digital Sidetone", wm8991_left_digital_sidetone_enum),
+ SOC_ENUM("Right Digital Sidetone", wm8991_right_digital_sidetone_enum),
+
+ SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
+ WM8991_ADCL_DAC_SVOL_SHIFT, WM8991_ADCL_DAC_SVOL_MASK, 0,
+ out_sidetone_tlv),
+ SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
+ WM8991_ADCR_DAC_SVOL_SHIFT, WM8991_ADCR_DAC_SVOL_MASK, 0,
+ out_sidetone_tlv),
+
+ SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8991_ADC_CTRL,
+ WM8991_ADC_HPF_ENA_BIT, 1, 0),
+
+ SOC_ENUM("ADC HPF Mode", wm8991_right_adcmode_enum),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
+ WM8991_LEFT_ADC_DIGITAL_VOLUME,
+ WM8991_ADCL_VOL_SHIFT,
+ WM8991_ADCL_VOL_MASK,
+ 0,
+ in_adc_tlv),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
+ WM8991_RIGHT_ADC_DIGITAL_VOLUME,
+ WM8991_ADCR_VOL_SHIFT,
+ WM8991_ADCR_VOL_MASK,
+ 0,
+ in_adc_tlv),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
+ WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
+ WM8991_LIN12VOL_SHIFT,
+ WM8991_LIN12VOL_MASK,
+ 0,
+ in_pga_tlv),
+
+ SOC_SINGLE("LIN12 ZC Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
+ WM8991_LI12ZC_BIT, 1, 0),
+
+ SOC_SINGLE("LIN12 Mute Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
+ WM8991_LI12MUTE_BIT, 1, 0),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
+ WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
+ WM8991_LIN34VOL_SHIFT,
+ WM8991_LIN34VOL_MASK,
+ 0,
+ in_pga_tlv),
+
+ SOC_SINGLE("LIN34 ZC Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
+ WM8991_LI34ZC_BIT, 1, 0),
+
+ SOC_SINGLE("LIN34 Mute Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
+ WM8991_LI34MUTE_BIT, 1, 0),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
+ WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
+ WM8991_RIN12VOL_SHIFT,
+ WM8991_RIN12VOL_MASK,
+ 0,
+ in_pga_tlv),
+
+ SOC_SINGLE("RIN12 ZC Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
+ WM8991_RI12ZC_BIT, 1, 0),
+
+ SOC_SINGLE("RIN12 Mute Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
+ WM8991_RI12MUTE_BIT, 1, 0),
+
+ SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
+ WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
+ WM8991_RIN34VOL_SHIFT,
+ WM8991_RIN34VOL_MASK,
+ 0,
+ in_pga_tlv),
+
+ SOC_SINGLE("RIN34 ZC Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
+ WM8991_RI34ZC_BIT, 1, 0),
+
+ SOC_SINGLE("RIN34 Mute Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
+ WM8991_RI34MUTE_BIT, 1, 0),
+};
+
+/*
+ * _DAPM_ Controls
+ */
+static int outmixer_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ u32 reg_shift = kcontrol->private_value & 0xfff;
+ int ret = 0;
+ u16 reg;
+
+ switch (reg_shift) {
+ case WM8991_SPEAKER_MIXER | (WM8991_LDSPK_BIT << 8):
+ reg = snd_soc_read(codec, WM8991_OUTPUT_MIXER1);
+ if (reg & WM8991_LDLO) {
+ printk(KERN_WARNING
+ "Cannot set as Output Mixer 1 LDLO Set\n");
+ ret = -1;
+ }
+ break;
+
+ case WM8991_SPEAKER_MIXER | (WM8991_RDSPK_BIT << 8):
+ reg = snd_soc_read(codec, WM8991_OUTPUT_MIXER2);
+ if (reg & WM8991_RDRO) {
+ printk(KERN_WARNING
+ "Cannot set as Output Mixer 2 RDRO Set\n");
+ ret = -1;
+ }
+ break;
+
+ case WM8991_OUTPUT_MIXER1 | (WM8991_LDLO_BIT << 8):
+ reg = snd_soc_read(codec, WM8991_SPEAKER_MIXER);
+ if (reg & WM8991_LDSPK) {
+ printk(KERN_WARNING
+ "Cannot set as Speaker Mixer LDSPK Set\n");
+ ret = -1;
+ }
+ break;
+
+ case WM8991_OUTPUT_MIXER2 | (WM8991_RDRO_BIT << 8):
+ reg = snd_soc_read(codec, WM8991_SPEAKER_MIXER);
+ if (reg & WM8991_RDSPK) {
+ printk(KERN_WARNING
+ "Cannot set as Speaker Mixer RDSPK Set\n");
+ ret = -1;
+ }
+ break;
+ }
+
+ return ret;
+}
+
+/* INMIX dB values */
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_mix_tlv, -1200, 300, 1);
+
+/* Left In PGA Connections */
+static const struct snd_kcontrol_new wm8991_dapm_lin12_pga_controls[] = {
+ SOC_DAPM_SINGLE("LIN1 Switch", WM8991_INPUT_MIXER2, WM8991_LMN1_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LIN2 Switch", WM8991_INPUT_MIXER2, WM8991_LMP2_BIT, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8991_dapm_lin34_pga_controls[] = {
+ SOC_DAPM_SINGLE("LIN3 Switch", WM8991_INPUT_MIXER2, WM8991_LMN3_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LIN4 Switch", WM8991_INPUT_MIXER2, WM8991_LMP4_BIT, 1, 0),
+};
+
+/* Right In PGA Connections */
+static const struct snd_kcontrol_new wm8991_dapm_rin12_pga_controls[] = {
+ SOC_DAPM_SINGLE("RIN1 Switch", WM8991_INPUT_MIXER2, WM8991_RMN1_BIT, 1, 0),
+ SOC_DAPM_SINGLE("RIN2 Switch", WM8991_INPUT_MIXER2, WM8991_RMP2_BIT, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8991_dapm_rin34_pga_controls[] = {
+ SOC_DAPM_SINGLE("RIN3 Switch", WM8991_INPUT_MIXER2, WM8991_RMN3_BIT, 1, 0),
+ SOC_DAPM_SINGLE("RIN4 Switch", WM8991_INPUT_MIXER2, WM8991_RMP4_BIT, 1, 0),
+};
+
+/* INMIXL */
+static const struct snd_kcontrol_new wm8991_dapm_inmixl_controls[] = {
+ SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8991_INPUT_MIXER3,
+ WM8991_LDBVOL_SHIFT, WM8991_LDBVOL_MASK, 0, in_mix_tlv),
+ SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8991_INPUT_MIXER5, WM8991_LI2BVOL_SHIFT,
+ 7, 0, in_mix_tlv),
+ SOC_DAPM_SINGLE("LINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
+ 1, 0),
+ SOC_DAPM_SINGLE("LINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
+ 1, 0),
+};
+
+/* INMIXR */
+static const struct snd_kcontrol_new wm8991_dapm_inmixr_controls[] = {
+ SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8991_INPUT_MIXER4,
+ WM8991_RDBVOL_SHIFT, WM8991_RDBVOL_MASK, 0, in_mix_tlv),
+ SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8991_INPUT_MIXER6, WM8991_RI2BVOL_SHIFT,
+ 7, 0, in_mix_tlv),
+ SOC_DAPM_SINGLE("RINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
+ 1, 0),
+ SOC_DAPM_SINGLE("RINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
+ 1, 0),
+};
+
+/* AINLMUX */
+static const char *wm8991_ainlmux[] =
+{"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
+
+static SOC_ENUM_SINGLE_DECL(wm8991_ainlmux_enum,
+ WM8991_INPUT_MIXER1, WM8991_AINLMODE_SHIFT,
+ wm8991_ainlmux);
+
+static const struct snd_kcontrol_new wm8991_dapm_ainlmux_controls =
+ SOC_DAPM_ENUM("Route", wm8991_ainlmux_enum);
+
+/* DIFFINL */
+
+/* AINRMUX */
+static const char *wm8991_ainrmux[] =
+{"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
+
+static SOC_ENUM_SINGLE_DECL(wm8991_ainrmux_enum,
+ WM8991_INPUT_MIXER1, WM8991_AINRMODE_SHIFT,
+ wm8991_ainrmux);
+
+static const struct snd_kcontrol_new wm8991_dapm_ainrmux_controls =
+ SOC_DAPM_ENUM("Route", wm8991_ainrmux_enum);
+
+/* RXVOICE */
+static const struct snd_kcontrol_new wm8991_dapm_rxvoice_controls[] = {
+ SOC_DAPM_SINGLE_TLV("LIN4RXN", WM8991_INPUT_MIXER5, WM8991_LR4BVOL_SHIFT,
+ WM8991_LR4BVOL_MASK, 0, in_mix_tlv),
+ SOC_DAPM_SINGLE_TLV("RIN4RXP", WM8991_INPUT_MIXER6, WM8991_RL4BVOL_SHIFT,
+ WM8991_RL4BVOL_MASK, 0, in_mix_tlv),
+};
+
+/* LOMIX */
+static const struct snd_kcontrol_new wm8991_dapm_lomix_controls[] = {
+ SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LRBLO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LLBLO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LRI3LO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LLI3LO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LR12LO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LL12LO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8991_OUTPUT_MIXER1,
+ WM8991_LDLO_BIT, 1, 0),
+};
+
+/* ROMIX */
+static const struct snd_kcontrol_new wm8991_dapm_romix_controls[] = {
+ SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RLBRO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RRBRO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RLI3RO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RRI3RO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RL12RO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RR12RO_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8991_OUTPUT_MIXER2,
+ WM8991_RDRO_BIT, 1, 0),
+};
+
+/* LONMIX */
+static const struct snd_kcontrol_new wm8991_dapm_lonmix_controls[] = {
+ SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
+ WM8991_LLOPGALON_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER1,
+ WM8991_LROPGALON_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8991_LINE_MIXER1,
+ WM8991_LOPLON_BIT, 1, 0),
+};
+
+/* LOPMIX */
+static const struct snd_kcontrol_new wm8991_dapm_lopmix_controls[] = {
+ SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER1,
+ WM8991_LR12LOP_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER1,
+ WM8991_LL12LOP_BIT, 1, 0),
+ SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
+ WM8991_LLOPGALOP_BIT, 1, 0),
+};
+
+/* RONMIX */
+static const struct snd_kcontrol_new wm8991_dapm_ronmix_controls[] = {
+ SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
+ WM8991_RROPGARON_BIT, 1, 0),
+ SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER2,
+ WM8991_RLOPGARON_BIT, 1, 0),
+ SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8991_LINE_MIXER2,
+ WM8991_ROPRON_BIT, 1, 0),
+};
+
+/* ROPMIX */
+static const struct snd_kcontrol_new wm8991_dapm_ropmix_controls[] = {
+ SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER2,
+ WM8991_RL12ROP_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER2,
+ WM8991_RR12ROP_BIT, 1, 0),
+ SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
+ WM8991_RROPGAROP_BIT, 1, 0),
+};
+
+/* OUT3MIX */
+static const struct snd_kcontrol_new wm8991_dapm_out3mix_controls[] = {
+ SOC_DAPM_SINGLE("OUT3MIX LIN4RXN Bypass Switch", WM8991_OUT3_4_MIXER,
+ WM8991_LI4O3_BIT, 1, 0),
+ SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8991_OUT3_4_MIXER,
+ WM8991_LPGAO3_BIT, 1, 0),
+};
+
+/* OUT4MIX */
+static const struct snd_kcontrol_new wm8991_dapm_out4mix_controls[] = {
+ SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8991_OUT3_4_MIXER,
+ WM8991_RPGAO4_BIT, 1, 0),
+ SOC_DAPM_SINGLE("OUT4MIX RIN4RXP Bypass Switch", WM8991_OUT3_4_MIXER,
+ WM8991_RI4O4_BIT, 1, 0),
+};
+
+/* SPKMIX */
+static const struct snd_kcontrol_new wm8991_dapm_spkmix_controls[] = {
+ SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
+ WM8991_LI2SPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8991_SPEAKER_MIXER,
+ WM8991_LB2SPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8991_SPEAKER_MIXER,
+ WM8991_LOPGASPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8991_SPEAKER_MIXER,
+ WM8991_LDSPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8991_SPEAKER_MIXER,
+ WM8991_RDSPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8991_SPEAKER_MIXER,
+ WM8991_ROPGASPK_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8991_SPEAKER_MIXER,
+ WM8991_RL12ROP_BIT, 1, 0),
+ SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
+ WM8991_RI2SPK_BIT, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8991_dapm_widgets[] = {
+ /* Input Side */
+ /* Input Lines */
+ SND_SOC_DAPM_INPUT("LIN1"),
+ SND_SOC_DAPM_INPUT("LIN2"),
+ SND_SOC_DAPM_INPUT("LIN3"),
+ SND_SOC_DAPM_INPUT("LIN4RXN"),
+ SND_SOC_DAPM_INPUT("RIN3"),
+ SND_SOC_DAPM_INPUT("RIN4RXP"),
+ SND_SOC_DAPM_INPUT("RIN1"),
+ SND_SOC_DAPM_INPUT("RIN2"),
+ SND_SOC_DAPM_INPUT("Internal ADC Source"),
+
+ SND_SOC_DAPM_SUPPLY("INL", WM8991_POWER_MANAGEMENT_2,
+ WM8991_AINL_ENA_BIT, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("INR", WM8991_POWER_MANAGEMENT_2,
+ WM8991_AINR_ENA_BIT, 0, NULL, 0),
+
+ /* DACs */
+ SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8991_POWER_MANAGEMENT_2,
+ WM8991_ADCL_ENA_BIT, 0),
+ SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8991_POWER_MANAGEMENT_2,
+ WM8991_ADCR_ENA_BIT, 0),
+
+ /* Input PGAs */
+ SND_SOC_DAPM_MIXER("LIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN12_ENA_BIT,
+ 0, &wm8991_dapm_lin12_pga_controls[0],
+ ARRAY_SIZE(wm8991_dapm_lin12_pga_controls)),
+ SND_SOC_DAPM_MIXER("LIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN34_ENA_BIT,
+ 0, &wm8991_dapm_lin34_pga_controls[0],
+ ARRAY_SIZE(wm8991_dapm_lin34_pga_controls)),
+ SND_SOC_DAPM_MIXER("RIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN12_ENA_BIT,
+ 0, &wm8991_dapm_rin12_pga_controls[0],
+ ARRAY_SIZE(wm8991_dapm_rin12_pga_controls)),
+ SND_SOC_DAPM_MIXER("RIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN34_ENA_BIT,
+ 0, &wm8991_dapm_rin34_pga_controls[0],
+ ARRAY_SIZE(wm8991_dapm_rin34_pga_controls)),
+
+ /* INMIXL */
+ SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
+ &wm8991_dapm_inmixl_controls[0],
+ ARRAY_SIZE(wm8991_dapm_inmixl_controls)),
+
+ /* AINLMUX */
+ SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0,
+ &wm8991_dapm_ainlmux_controls),
+
+ /* INMIXR */
+ SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
+ &wm8991_dapm_inmixr_controls[0],
+ ARRAY_SIZE(wm8991_dapm_inmixr_controls)),
+
+ /* AINRMUX */
+ SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0,
+ &wm8991_dapm_ainrmux_controls),
+
+ /* Output Side */
+ /* DACs */
+ SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8991_POWER_MANAGEMENT_3,
+ WM8991_DACL_ENA_BIT, 0),
+ SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8991_POWER_MANAGEMENT_3,
+ WM8991_DACR_ENA_BIT, 0),
+
+ /* LOMIX */
+ SND_SOC_DAPM_MIXER_E("LOMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOMIX_ENA_BIT,
+ 0, &wm8991_dapm_lomix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_lomix_controls),
+ outmixer_event, SND_SOC_DAPM_PRE_REG),
+
+ /* LONMIX */
+ SND_SOC_DAPM_MIXER("LONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LON_ENA_BIT, 0,
+ &wm8991_dapm_lonmix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_lonmix_controls)),
+
+ /* LOPMIX */
+ SND_SOC_DAPM_MIXER("LOPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOP_ENA_BIT, 0,
+ &wm8991_dapm_lopmix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_lopmix_controls)),
+
+ /* OUT3MIX */
+ SND_SOC_DAPM_MIXER("OUT3MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT3_ENA_BIT, 0,
+ &wm8991_dapm_out3mix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_out3mix_controls)),
+
+ /* SPKMIX */
+ SND_SOC_DAPM_MIXER_E("SPKMIX", WM8991_POWER_MANAGEMENT_1, WM8991_SPK_ENA_BIT, 0,
+ &wm8991_dapm_spkmix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_spkmix_controls), outmixer_event,
+ SND_SOC_DAPM_PRE_REG),
+
+ /* OUT4MIX */
+ SND_SOC_DAPM_MIXER("OUT4MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT4_ENA_BIT, 0,
+ &wm8991_dapm_out4mix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_out4mix_controls)),
+
+ /* ROPMIX */
+ SND_SOC_DAPM_MIXER("ROPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROP_ENA_BIT, 0,
+ &wm8991_dapm_ropmix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_ropmix_controls)),
+
+ /* RONMIX */
+ SND_SOC_DAPM_MIXER("RONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_RON_ENA_BIT, 0,
+ &wm8991_dapm_ronmix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_ronmix_controls)),
+
+ /* ROMIX */
+ SND_SOC_DAPM_MIXER_E("ROMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROMIX_ENA_BIT,
+ 0, &wm8991_dapm_romix_controls[0],
+ ARRAY_SIZE(wm8991_dapm_romix_controls),
+ outmixer_event, SND_SOC_DAPM_PRE_REG),
+
+ /* LOUT PGA */
+ SND_SOC_DAPM_PGA("LOUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_LOUT_ENA_BIT, 0,
+ NULL, 0),
+
+ /* ROUT PGA */
+ SND_SOC_DAPM_PGA("ROUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_ROUT_ENA_BIT, 0,
+ NULL, 0),
+
+ /* LOPGA */
+ SND_SOC_DAPM_PGA("LOPGA", WM8991_POWER_MANAGEMENT_3, WM8991_LOPGA_ENA_BIT, 0,
+ NULL, 0),
+
+ /* ROPGA */
+ SND_SOC_DAPM_PGA("ROPGA", WM8991_POWER_MANAGEMENT_3, WM8991_ROPGA_ENA_BIT, 0,
+ NULL, 0),
+
+ /* MICBIAS */
+ SND_SOC_DAPM_SUPPLY("MICBIAS", WM8991_POWER_MANAGEMENT_1,
+ WM8991_MICBIAS_ENA_BIT, 0, NULL, 0),
+
+ SND_SOC_DAPM_OUTPUT("LON"),
+ SND_SOC_DAPM_OUTPUT("LOP"),
+ SND_SOC_DAPM_OUTPUT("OUT3"),
+ SND_SOC_DAPM_OUTPUT("LOUT"),
+ SND_SOC_DAPM_OUTPUT("SPKN"),
+ SND_SOC_DAPM_OUTPUT("SPKP"),
+ SND_SOC_DAPM_OUTPUT("ROUT"),
+ SND_SOC_DAPM_OUTPUT("OUT4"),
+ SND_SOC_DAPM_OUTPUT("ROP"),
+ SND_SOC_DAPM_OUTPUT("RON"),
+ SND_SOC_DAPM_OUTPUT("OUT"),
+
+ SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
+};
+
+static const struct snd_soc_dapm_route wm8991_dapm_routes[] = {
+ /* Make DACs turn on when playing even if not mixed into any outputs */
+ {"Internal DAC Sink", NULL, "Left DAC"},
+ {"Internal DAC Sink", NULL, "Right DAC"},
+
+ /* Make ADCs turn on when recording even if not mixed from any inputs */
+ {"Left ADC", NULL, "Internal ADC Source"},
+ {"Right ADC", NULL, "Internal ADC Source"},
+
+ /* Input Side */
+ {"INMIXL", NULL, "INL"},
+ {"AINLMUX", NULL, "INL"},
+ {"INMIXR", NULL, "INR"},
+ {"AINRMUX", NULL, "INR"},
+ /* LIN12 PGA */
+ {"LIN12 PGA", "LIN1 Switch", "LIN1"},
+ {"LIN12 PGA", "LIN2 Switch", "LIN2"},
+ /* LIN34 PGA */
+ {"LIN34 PGA", "LIN3 Switch", "LIN3"},
+ {"LIN34 PGA", "LIN4 Switch", "LIN4RXN"},
+ /* INMIXL */
+ {"INMIXL", "Record Left Volume", "LOMIX"},
+ {"INMIXL", "LIN2 Volume", "LIN2"},
+ {"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
+ {"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
+ /* AINLMUX */
+ {"AINLMUX", "INMIXL Mix", "INMIXL"},
+ {"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
+ {"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
+ {"AINLMUX", "RXVOICE Mix", "LIN4RXN"},
+ {"AINLMUX", "RXVOICE Mix", "RIN4RXP"},
+ /* ADC */
+ {"Left ADC", NULL, "AINLMUX"},
+
+ /* RIN12 PGA */
+ {"RIN12 PGA", "RIN1 Switch", "RIN1"},
+ {"RIN12 PGA", "RIN2 Switch", "RIN2"},
+ /* RIN34 PGA */
+ {"RIN34 PGA", "RIN3 Switch", "RIN3"},
+ {"RIN34 PGA", "RIN4 Switch", "RIN4RXP"},
+ /* INMIXL */
+ {"INMIXR", "Record Right Volume", "ROMIX"},
+ {"INMIXR", "RIN2 Volume", "RIN2"},
+ {"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
+ {"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
+ /* AINRMUX */
+ {"AINRMUX", "INMIXR Mix", "INMIXR"},
+ {"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
+ {"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
+ {"AINRMUX", "RXVOICE Mix", "LIN4RXN"},
+ {"AINRMUX", "RXVOICE Mix", "RIN4RXP"},
+ /* ADC */
+ {"Right ADC", NULL, "AINRMUX"},
+
+ /* LOMIX */
+ {"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
+ {"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
+ {"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
+ {"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
+ {"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
+ {"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
+ {"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
+
+ /* ROMIX */
+ {"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
+ {"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
+ {"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
+ {"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
+ {"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
+ {"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
+ {"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
+
+ /* SPKMIX */
+ {"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
+ {"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
+ {"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
+ {"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
+ {"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
+ {"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
+ {"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
+ {"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
+
+ /* LONMIX */
+ {"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
+ {"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
+ {"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
+
+ /* LOPMIX */
+ {"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
+ {"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
+ {"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
+
+ /* OUT3MIX */
+ {"OUT3MIX", "OUT3MIX LIN4RXN Bypass Switch", "LIN4RXN"},
+ {"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
+
+ /* OUT4MIX */
+ {"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
+ {"OUT4MIX", "OUT4MIX RIN4RXP Bypass Switch", "RIN4RXP"},
+
+ /* RONMIX */
+ {"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
+ {"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
+ {"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
+
+ /* ROPMIX */
+ {"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
+ {"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
+ {"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
+
+ /* Out Mixer PGAs */
+ {"LOPGA", NULL, "LOMIX"},
+ {"ROPGA", NULL, "ROMIX"},
+
+ {"LOUT PGA", NULL, "LOMIX"},
+ {"ROUT PGA", NULL, "ROMIX"},
+
+ /* Output Pins */
+ {"LON", NULL, "LONMIX"},
+ {"LOP", NULL, "LOPMIX"},
+ {"OUT", NULL, "OUT3MIX"},
+ {"LOUT", NULL, "LOUT PGA"},
+ {"SPKN", NULL, "SPKMIX"},
+ {"ROUT", NULL, "ROUT PGA"},
+ {"OUT4", NULL, "OUT4MIX"},
+ {"ROP", NULL, "ROPMIX"},
+ {"RON", NULL, "RONMIX"},
+};
+
+/* PLL divisors */
+struct _pll_div {
+ u32 div2;
+ u32 n;
+ u32 k;
+};
+
+/* The size in bits of the pll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_PLL_SIZE ((1 << 16) * 10)
+
+static void pll_factors(struct _pll_div *pll_div, unsigned int target,
+ unsigned int source)
+{
+ u64 Kpart;
+ unsigned int K, Ndiv, Nmod;
+
+
+ Ndiv = target / source;
+ if (Ndiv < 6) {
+ source >>= 1;
+ pll_div->div2 = 1;
+ Ndiv = target / source;
+ } else
+ pll_div->div2 = 0;
+
+ if ((Ndiv < 6) || (Ndiv > 12))
+ printk(KERN_WARNING
+ "WM8991 N value outwith recommended range! N = %d\n", Ndiv);
+
+ pll_div->n = Ndiv;
+ Nmod = target % source;
+ Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+ do_div(Kpart, source);
+
+ K = Kpart & 0xFFFFFFFF;
+
+ /* Check if we need to round */
+ if ((K % 10) >= 5)
+ K += 5;
+
+ /* Move down to proper range now rounding is done */
+ K /= 10;
+
+ pll_div->k = K;
+}
+
+static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
+ int pll_id, int src, unsigned int freq_in, unsigned int freq_out)
+{
+ u16 reg;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct _pll_div pll_div;
+
+ if (freq_in && freq_out) {
+ pll_factors(&pll_div, freq_out * 4, freq_in);
+
+ /* Turn on PLL */
+ reg = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_2);
+ reg |= WM8991_PLL_ENA;
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_2, reg);
+
+ /* sysclk comes from PLL */
+ reg = snd_soc_read(codec, WM8991_CLOCKING_2);
+ snd_soc_write(codec, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
+
+ /* set up N , fractional mode and pre-divisor if necessary */
+ snd_soc_write(codec, WM8991_PLL1, pll_div.n | WM8991_SDM |
+ (pll_div.div2 ? WM8991_PRESCALE : 0));
+ snd_soc_write(codec, WM8991_PLL2, (u8)(pll_div.k>>8));
+ snd_soc_write(codec, WM8991_PLL3, (u8)(pll_div.k & 0xFF));
+ } else {
+ /* Turn on PLL */
+ reg = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_2);
+ reg &= ~WM8991_PLL_ENA;
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_2, reg);
+ }
+ return 0;
+}
+
+/*
+ * Set's ADC and Voice DAC format.
+ */
+static int wm8991_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 audio1, audio3;
+
+ audio1 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_1);
+ audio3 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_3);
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ audio3 &= ~WM8991_AIF_MSTR1;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ audio3 |= WM8991_AIF_MSTR1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ audio1 &= ~WM8991_AIF_FMT_MASK;
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ audio1 |= WM8991_AIF_TMF_I2S;
+ audio1 &= ~WM8991_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ audio1 |= WM8991_AIF_TMF_RIGHTJ;
+ audio1 &= ~WM8991_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ audio1 |= WM8991_AIF_TMF_LEFTJ;
+ audio1 &= ~WM8991_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ audio1 |= WM8991_AIF_TMF_DSP;
+ audio1 &= ~WM8991_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ audio1 |= WM8991_AIF_TMF_DSP | WM8991_AIF_LRCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, WM8991_AUDIO_INTERFACE_1, audio1);
+ snd_soc_write(codec, WM8991_AUDIO_INTERFACE_3, audio3);
+ return 0;
+}
+
+static int wm8991_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+ int div_id, int div)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+
+ switch (div_id) {
+ case WM8991_MCLK_DIV:
+ reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
+ ~WM8991_MCLK_DIV_MASK;
+ snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
+ break;
+ case WM8991_DACCLK_DIV:
+ reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
+ ~WM8991_DAC_CLKDIV_MASK;
+ snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
+ break;
+ case WM8991_ADCCLK_DIV:
+ reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
+ ~WM8991_ADC_CLKDIV_MASK;
+ snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
+ break;
+ case WM8991_BCLK_DIV:
+ reg = snd_soc_read(codec, WM8991_CLOCKING_1) &
+ ~WM8991_BCLK_DIV_MASK;
+ snd_soc_write(codec, WM8991_CLOCKING_1, reg | div);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * Set PCM DAI bit size and sample rate.
+ */
+static int wm8991_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 audio1 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_1);
+
+ audio1 &= ~WM8991_AIF_WL_MASK;
+ /* bit size */
+ switch (params_width(params)) {
+ case 16:
+ break;
+ case 20:
+ audio1 |= WM8991_AIF_WL_20BITS;
+ break;
+ case 24:
+ audio1 |= WM8991_AIF_WL_24BITS;
+ break;
+ case 32:
+ audio1 |= WM8991_AIF_WL_32BITS;
+ break;
+ }
+
+ snd_soc_write(codec, WM8991_AUDIO_INTERFACE_1, audio1);
+ return 0;
+}
+
+static int wm8991_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 val;
+
+ val = snd_soc_read(codec, WM8991_DAC_CTRL) & ~WM8991_DAC_MUTE;
+ if (mute)
+ snd_soc_write(codec, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
+ else
+ snd_soc_write(codec, WM8991_DAC_CTRL, val);
+ return 0;
+}
+
+static int wm8991_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct wm8991_priv *wm8991 = snd_soc_codec_get_drvdata(codec);
+ u16 val;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ /* VMID=2*50k */
+ val = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_1) &
+ ~WM8991_VMID_MODE_MASK;
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, val | 0x2);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
+ regcache_sync(wm8991->regmap);
+ /* Enable all output discharge bits */
+ snd_soc_write(codec, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
+ WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
+ WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
+ WM8991_DIS_ROUT);
+
+ /* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
+ WM8991_BUFDCOPEN | WM8991_POBCTRL |
+ WM8991_VMIDTOG);
+
+ /* Delay to allow output caps to discharge */
+ msleep(300);
+
+ /* Disable VMIDTOG */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
+ WM8991_BUFDCOPEN | WM8991_POBCTRL);
+
+ /* disable all output discharge bits */
+ snd_soc_write(codec, WM8991_ANTIPOP1, 0);
+
+ /* Enable outputs */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1b00);
+
+ msleep(50);
+
+ /* Enable VMID at 2x50k */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f02);
+
+ msleep(100);
+
+ /* Enable VREF */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f03);
+
+ msleep(600);
+
+ /* Enable BUFIOEN */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
+ WM8991_BUFDCOPEN | WM8991_POBCTRL |
+ WM8991_BUFIOEN);
+
+ /* Disable outputs */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x3);
+
+ /* disable POBCTRL, SOFT_ST and BUFDCOPEN */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_BUFIOEN);
+ }
+
+ /* VMID=2*250k */
+ val = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_1) &
+ ~WM8991_VMID_MODE_MASK;
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, val | 0x4);
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ /* Enable POBCTRL and SOFT_ST */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
+ WM8991_POBCTRL | WM8991_BUFIOEN);
+
+ /* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
+ snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
+ WM8991_BUFDCOPEN | WM8991_POBCTRL |
+ WM8991_BUFIOEN);
+
+ /* mute DAC */
+ val = snd_soc_read(codec, WM8991_DAC_CTRL);
+ snd_soc_write(codec, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
+
+ /* Enable any disabled outputs */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f03);
+
+ /* Disable VMID */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f01);
+
+ msleep(300);
+
+ /* Enable all output discharge bits */
+ snd_soc_write(codec, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
+ WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
+ WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
+ WM8991_DIS_ROUT);
+
+ /* Disable VREF */
+ snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x0);
+
+ /* disable POBCTRL, SOFT_ST and BUFDCOPEN */
+ snd_soc_write(codec, WM8991_ANTIPOP2, 0x0);
+ regcache_mark_dirty(wm8991->regmap);
+ break;
+ }
+
+ return 0;
+}
+
+#define WM8991_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static const struct snd_soc_dai_ops wm8991_ops = {
+ .hw_params = wm8991_hw_params,
+ .digital_mute = wm8991_mute,
+ .set_fmt = wm8991_set_dai_fmt,
+ .set_clkdiv = wm8991_set_dai_clkdiv,
+ .set_pll = wm8991_set_dai_pll
+};
+
+/*
+ * The WM8991 supports 2 different and mutually exclusive DAI
+ * configurations.
+ *
+ * 1. ADC/DAC on Primary Interface
+ * 2. ADC on Primary Interface/DAC on secondary
+ */
+static struct snd_soc_dai_driver wm8991_dai = {
+ /* ADC/DAC on primary */
+ .name = "wm8991",
+ .id = 1,
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = WM8991_FORMATS
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = WM8991_FORMATS
+ },
+ .ops = &wm8991_ops
+};
+
+static const struct snd_soc_codec_driver soc_codec_dev_wm8991 = {
+ .set_bias_level = wm8991_set_bias_level,
+ .suspend_bias_off = true,
+
+ .component_driver = {
+ .controls = wm8991_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8991_snd_controls),
+ .dapm_widgets = wm8991_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8991_dapm_widgets),
+ .dapm_routes = wm8991_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8991_dapm_routes),
+ },
+};
+
+static const struct regmap_config wm8991_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+
+ .max_register = WM8991_PLL3,
+ .volatile_reg = wm8991_volatile,
+ .reg_defaults = wm8991_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8991_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int wm8991_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8991_priv *wm8991;
+ unsigned int val;
+ int ret;
+
+ wm8991 = devm_kzalloc(&i2c->dev, sizeof(*wm8991), GFP_KERNEL);
+ if (!wm8991)
+ return -ENOMEM;
+
+ wm8991->regmap = devm_regmap_init_i2c(i2c, &wm8991_regmap);
+ if (IS_ERR(wm8991->regmap))
+ return PTR_ERR(wm8991->regmap);
+
+ i2c_set_clientdata(i2c, wm8991);
+
+ ret = regmap_read(wm8991->regmap, WM8991_RESET, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);
+ return ret;
+ }
+ if (val != 0x8991) {
+ dev_err(&i2c->dev, "Device with ID %x is not a WM8991\n", val);
+ return -EINVAL;
+ }
+
+ ret = regmap_write(wm8991->regmap, WM8991_RESET, 0);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
+ return ret;
+ }
+
+ regmap_update_bits(wm8991->regmap, WM8991_AUDIO_INTERFACE_4,
+ WM8991_ALRCGPIO1, WM8991_ALRCGPIO1);
+
+ regmap_update_bits(wm8991->regmap, WM8991_GPIO1_GPIO2,
+ WM8991_GPIO1_SEL_MASK, 1);
+
+ regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_1,
+ WM8991_VREF_ENA | WM8991_VMID_MODE_MASK,
+ WM8991_VREF_ENA | WM8991_VMID_MODE_MASK);
+
+ regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_2,
+ WM8991_OPCLK_ENA, WM8991_OPCLK_ENA);
+
+ regmap_write(wm8991->regmap, WM8991_DAC_CTRL, 0);
+ regmap_write(wm8991->regmap, WM8991_LEFT_OUTPUT_VOLUME,
+ 0x50 | (1<<8));
+ regmap_write(wm8991->regmap, WM8991_RIGHT_OUTPUT_VOLUME,
+ 0x50 | (1<<8));
+
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8991, &wm8991_dai, 1);
+
+ return ret;
+}
+
+static int wm8991_i2c_remove(struct i2c_client *client)
+{
+ snd_soc_unregister_codec(&client->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id wm8991_i2c_id[] = {
+ { "wm8991", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8991_i2c_id);
+
+static struct i2c_driver wm8991_i2c_driver = {
+ .driver = {
+ .name = "wm8991",
+ },
+ .probe = wm8991_i2c_probe,
+ .remove = wm8991_i2c_remove,
+ .id_table = wm8991_i2c_id,
+};
+
+module_i2c_driver(wm8991_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC WM8991 driver");
+MODULE_AUTHOR("Graeme Gregory");
+MODULE_LICENSE("GPL");