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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * wm8903.c -- WM8903 ALSA SoC Audio driver
- *
- * Copyright 2008-12 Wolfson Microelectronics
- * Copyright 2011-2012 NVIDIA, Inc.
- *
- * Author: Mark Brown <[email protected]>
- *
- * TODO:
- * - TDM mode configuration.
- * - Digital microphone support.
- */
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/init.h>
- #include <linux/completion.h>
- #include <linux/delay.h>
- #include <linux/gpio/driver.h>
- #include <linux/pm.h>
- #include <linux/i2c.h>
- #include <linux/regmap.h>
- #include <linux/regulator/consumer.h>
- #include <linux/slab.h>
- #include <linux/irq.h>
- #include <linux/mutex.h>
- #include <sound/core.h>
- #include <sound/jack.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/tlv.h>
- #include <sound/soc.h>
- #include <sound/initval.h>
- #include <sound/wm8903.h>
- #include <trace/events/asoc.h>
- #include "wm8903.h"
- /* Register defaults at reset */
- static const struct reg_default wm8903_reg_defaults[] = {
- { 4, 0x0018 }, /* R4 - Bias Control 0 */
- { 5, 0x0000 }, /* R5 - VMID Control 0 */
- { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
- { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
- { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
- { 12, 0x0000 }, /* R12 - Power Management 0 */
- { 13, 0x0000 }, /* R13 - Power Management 1 */
- { 14, 0x0000 }, /* R14 - Power Management 2 */
- { 15, 0x0000 }, /* R15 - Power Management 3 */
- { 16, 0x0000 }, /* R16 - Power Management 4 */
- { 17, 0x0000 }, /* R17 - Power Management 5 */
- { 18, 0x0000 }, /* R18 - Power Management 6 */
- { 20, 0x0400 }, /* R20 - Clock Rates 0 */
- { 21, 0x0D07 }, /* R21 - Clock Rates 1 */
- { 22, 0x0000 }, /* R22 - Clock Rates 2 */
- { 24, 0x0050 }, /* R24 - Audio Interface 0 */
- { 25, 0x0242 }, /* R25 - Audio Interface 1 */
- { 26, 0x0008 }, /* R26 - Audio Interface 2 */
- { 27, 0x0022 }, /* R27 - Audio Interface 3 */
- { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
- { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
- { 32, 0x0000 }, /* R32 - DAC Digital 0 */
- { 33, 0x0000 }, /* R33 - DAC Digital 1 */
- { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
- { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
- { 38, 0x0000 }, /* R38 - ADC Digital 0 */
- { 39, 0x0073 }, /* R39 - Digital Microphone 0 */
- { 40, 0x09BF }, /* R40 - DRC 0 */
- { 41, 0x3241 }, /* R41 - DRC 1 */
- { 42, 0x0020 }, /* R42 - DRC 2 */
- { 43, 0x0000 }, /* R43 - DRC 3 */
- { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
- { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
- { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
- { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
- { 50, 0x0008 }, /* R50 - Analogue Left Mix 0 */
- { 51, 0x0004 }, /* R51 - Analogue Right Mix 0 */
- { 52, 0x0000 }, /* R52 - Analogue Spk Mix Left 0 */
- { 53, 0x0000 }, /* R53 - Analogue Spk Mix Left 1 */
- { 54, 0x0000 }, /* R54 - Analogue Spk Mix Right 0 */
- { 55, 0x0000 }, /* R55 - Analogue Spk Mix Right 1 */
- { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
- { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
- { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
- { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
- { 62, 0x0139 }, /* R62 - Analogue OUT3 Left */
- { 63, 0x0139 }, /* R63 - Analogue OUT3 Right */
- { 64, 0x0000 }, /* R65 - Analogue SPK Output Control 0 */
- { 67, 0x0010 }, /* R67 - DC Servo 0 */
- { 69, 0x00A4 }, /* R69 - DC Servo 2 */
- { 90, 0x0000 }, /* R90 - Analogue HP 0 */
- { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
- { 98, 0x0000 }, /* R98 - Charge Pump 0 */
- { 104, 0x0000 }, /* R104 - Class W 0 */
- { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
- { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
- { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
- { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
- { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
- { 114, 0x0000 }, /* R114 - Control Interface */
- { 116, 0x00A8 }, /* R116 - GPIO Control 1 */
- { 117, 0x00A8 }, /* R117 - GPIO Control 2 */
- { 118, 0x00A8 }, /* R118 - GPIO Control 3 */
- { 119, 0x0220 }, /* R119 - GPIO Control 4 */
- { 120, 0x01A0 }, /* R120 - GPIO Control 5 */
- { 122, 0xFFFF }, /* R122 - Interrupt Status 1 Mask */
- { 123, 0x0000 }, /* R123 - Interrupt Polarity 1 */
- { 126, 0x0000 }, /* R126 - Interrupt Control */
- { 129, 0x0000 }, /* R129 - Control Interface Test 1 */
- { 149, 0x6810 }, /* R149 - Charge Pump Test 1 */
- { 164, 0x0028 }, /* R164 - Clock Rate Test 4 */
- { 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */
- };
- #define WM8903_NUM_SUPPLIES 4
- static const char *wm8903_supply_names[WM8903_NUM_SUPPLIES] = {
- "AVDD",
- "CPVDD",
- "DBVDD",
- "DCVDD",
- };
- struct wm8903_priv {
- struct wm8903_platform_data *pdata;
- struct device *dev;
- struct regmap *regmap;
- struct regulator_bulk_data supplies[WM8903_NUM_SUPPLIES];
- int sysclk;
- int irq;
- struct mutex lock;
- int fs;
- int deemph;
- int dcs_pending;
- int dcs_cache[4];
- /* Reference count */
- int class_w_users;
- struct snd_soc_jack *mic_jack;
- int mic_det;
- int mic_short;
- int mic_last_report;
- int mic_delay;
- #ifdef CONFIG_GPIOLIB
- struct gpio_chip gpio_chip;
- #endif
- };
- static bool wm8903_readable_register(struct device *dev, unsigned int reg)
- {
- switch (reg) {
- case WM8903_SW_RESET_AND_ID:
- case WM8903_REVISION_NUMBER:
- case WM8903_BIAS_CONTROL_0:
- case WM8903_VMID_CONTROL_0:
- case WM8903_MIC_BIAS_CONTROL_0:
- case WM8903_ANALOGUE_DAC_0:
- case WM8903_ANALOGUE_ADC_0:
- case WM8903_POWER_MANAGEMENT_0:
- case WM8903_POWER_MANAGEMENT_1:
- case WM8903_POWER_MANAGEMENT_2:
- case WM8903_POWER_MANAGEMENT_3:
- case WM8903_POWER_MANAGEMENT_4:
- case WM8903_POWER_MANAGEMENT_5:
- case WM8903_POWER_MANAGEMENT_6:
- case WM8903_CLOCK_RATES_0:
- case WM8903_CLOCK_RATES_1:
- case WM8903_CLOCK_RATES_2:
- case WM8903_AUDIO_INTERFACE_0:
- case WM8903_AUDIO_INTERFACE_1:
- case WM8903_AUDIO_INTERFACE_2:
- case WM8903_AUDIO_INTERFACE_3:
- case WM8903_DAC_DIGITAL_VOLUME_LEFT:
- case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
- case WM8903_DAC_DIGITAL_0:
- case WM8903_DAC_DIGITAL_1:
- case WM8903_ADC_DIGITAL_VOLUME_LEFT:
- case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
- case WM8903_ADC_DIGITAL_0:
- case WM8903_DIGITAL_MICROPHONE_0:
- case WM8903_DRC_0:
- case WM8903_DRC_1:
- case WM8903_DRC_2:
- case WM8903_DRC_3:
- case WM8903_ANALOGUE_LEFT_INPUT_0:
- case WM8903_ANALOGUE_RIGHT_INPUT_0:
- case WM8903_ANALOGUE_LEFT_INPUT_1:
- case WM8903_ANALOGUE_RIGHT_INPUT_1:
- case WM8903_ANALOGUE_LEFT_MIX_0:
- case WM8903_ANALOGUE_RIGHT_MIX_0:
- case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
- case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
- case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
- case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
- case WM8903_ANALOGUE_OUT1_LEFT:
- case WM8903_ANALOGUE_OUT1_RIGHT:
- case WM8903_ANALOGUE_OUT2_LEFT:
- case WM8903_ANALOGUE_OUT2_RIGHT:
- case WM8903_ANALOGUE_OUT3_LEFT:
- case WM8903_ANALOGUE_OUT3_RIGHT:
- case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
- case WM8903_DC_SERVO_0:
- case WM8903_DC_SERVO_2:
- case WM8903_DC_SERVO_READBACK_1:
- case WM8903_DC_SERVO_READBACK_2:
- case WM8903_DC_SERVO_READBACK_3:
- case WM8903_DC_SERVO_READBACK_4:
- case WM8903_ANALOGUE_HP_0:
- case WM8903_ANALOGUE_LINEOUT_0:
- case WM8903_CHARGE_PUMP_0:
- case WM8903_CLASS_W_0:
- case WM8903_WRITE_SEQUENCER_0:
- case WM8903_WRITE_SEQUENCER_1:
- case WM8903_WRITE_SEQUENCER_2:
- case WM8903_WRITE_SEQUENCER_3:
- case WM8903_WRITE_SEQUENCER_4:
- case WM8903_CONTROL_INTERFACE:
- case WM8903_GPIO_CONTROL_1:
- case WM8903_GPIO_CONTROL_2:
- case WM8903_GPIO_CONTROL_3:
- case WM8903_GPIO_CONTROL_4:
- case WM8903_GPIO_CONTROL_5:
- case WM8903_INTERRUPT_STATUS_1:
- case WM8903_INTERRUPT_STATUS_1_MASK:
- case WM8903_INTERRUPT_POLARITY_1:
- case WM8903_INTERRUPT_CONTROL:
- case WM8903_CLOCK_RATE_TEST_4:
- case WM8903_ANALOGUE_OUTPUT_BIAS_0:
- return true;
- default:
- return false;
- }
- }
- static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
- {
- switch (reg) {
- case WM8903_SW_RESET_AND_ID:
- case WM8903_REVISION_NUMBER:
- case WM8903_INTERRUPT_STATUS_1:
- case WM8903_WRITE_SEQUENCER_4:
- case WM8903_DC_SERVO_READBACK_1:
- case WM8903_DC_SERVO_READBACK_2:
- case WM8903_DC_SERVO_READBACK_3:
- case WM8903_DC_SERVO_READBACK_4:
- return true;
- default:
- return false;
- }
- }
- static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
- {
- WARN_ON(event != SND_SOC_DAPM_POST_PMU);
- mdelay(4);
- return 0;
- }
- static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
- {
- struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
- wm8903->dcs_pending |= 1 << w->shift;
- break;
- case SND_SOC_DAPM_PRE_PMD:
- snd_soc_component_update_bits(component, WM8903_DC_SERVO_0,
- 1 << w->shift, 0);
- break;
- }
- return 0;
- }
- #define WM8903_DCS_MODE_WRITE_STOP 0
- #define WM8903_DCS_MODE_START_STOP 2
- static void wm8903_seq_notifier(struct snd_soc_component *component,
- enum snd_soc_dapm_type event, int subseq)
- {
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
- int i, val;
- /* Complete any pending DC servo starts */
- if (wm8903->dcs_pending) {
- dev_dbg(component->dev, "Starting DC servo for %x\n",
- wm8903->dcs_pending);
- /* If we've no cached values then we need to do startup */
- for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
- if (!(wm8903->dcs_pending & (1 << i)))
- continue;
- if (wm8903->dcs_cache[i]) {
- dev_dbg(component->dev,
- "Restore DC servo %d value %x\n",
- 3 - i, wm8903->dcs_cache[i]);
- snd_soc_component_write(component, WM8903_DC_SERVO_4 + i,
- wm8903->dcs_cache[i] & 0xff);
- } else {
- dev_dbg(component->dev,
- "Calibrate DC servo %d\n", 3 - i);
- dcs_mode = WM8903_DCS_MODE_START_STOP;
- }
- }
- /* Don't trust the cache for analogue */
- if (wm8903->class_w_users)
- dcs_mode = WM8903_DCS_MODE_START_STOP;
- snd_soc_component_update_bits(component, WM8903_DC_SERVO_2,
- WM8903_DCS_MODE_MASK, dcs_mode);
- snd_soc_component_update_bits(component, WM8903_DC_SERVO_0,
- WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
- switch (dcs_mode) {
- case WM8903_DCS_MODE_WRITE_STOP:
- break;
- case WM8903_DCS_MODE_START_STOP:
- msleep(270);
- /* Cache the measured offsets for digital */
- if (wm8903->class_w_users)
- break;
- for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
- if (!(wm8903->dcs_pending & (1 << i)))
- continue;
- val = snd_soc_component_read(component,
- WM8903_DC_SERVO_READBACK_1 + i);
- dev_dbg(component->dev, "DC servo %d: %x\n",
- 3 - i, val);
- wm8903->dcs_cache[i] = val;
- }
- break;
- default:
- pr_warn("DCS mode %d delay not set\n", dcs_mode);
- break;
- }
- wm8903->dcs_pending = 0;
- }
- }
- /*
- * When used with DAC outputs only the WM8903 charge pump supports
- * operation in class W mode, providing very low power consumption
- * when used with digital sources. Enable and disable this mode
- * automatically depending on the mixer configuration.
- *
- * All the relevant controls are simple switches.
- */
- static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- u16 reg;
- int ret;
- reg = snd_soc_component_read(component, WM8903_CLASS_W_0);
- /* Turn it off if we're about to enable bypass */
- if (ucontrol->value.integer.value[0]) {
- if (wm8903->class_w_users == 0) {
- dev_dbg(component->dev, "Disabling Class W\n");
- snd_soc_component_write(component, WM8903_CLASS_W_0, reg &
- ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
- }
- wm8903->class_w_users++;
- }
- /* Implement the change */
- ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
- /* If we've just disabled the last bypass path turn Class W on */
- if (!ucontrol->value.integer.value[0]) {
- if (wm8903->class_w_users == 1) {
- dev_dbg(component->dev, "Enabling Class W\n");
- snd_soc_component_write(component, WM8903_CLASS_W_0, reg |
- WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
- }
- wm8903->class_w_users--;
- }
- dev_dbg(component->dev, "Bypass use count now %d\n",
- wm8903->class_w_users);
- return ret;
- }
- #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
- SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
- snd_soc_dapm_get_volsw, wm8903_class_w_put)
- static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
- static int wm8903_set_deemph(struct snd_soc_component *component)
- {
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- int val, i, best;
- /* If we're using deemphasis select the nearest available sample
- * rate.
- */
- if (wm8903->deemph) {
- best = 1;
- for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
- if (abs(wm8903_deemph[i] - wm8903->fs) <
- abs(wm8903_deemph[best] - wm8903->fs))
- best = i;
- }
- val = best << WM8903_DEEMPH_SHIFT;
- } else {
- best = 0;
- val = 0;
- }
- dev_dbg(component->dev, "Set deemphasis %d (%dHz)\n",
- best, wm8903_deemph[best]);
- return snd_soc_component_update_bits(component, WM8903_DAC_DIGITAL_1,
- WM8903_DEEMPH_MASK, val);
- }
- static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- ucontrol->value.integer.value[0] = wm8903->deemph;
- return 0;
- }
- static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
- {
- struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- unsigned int deemph = ucontrol->value.integer.value[0];
- int ret = 0;
- if (deemph > 1)
- return -EINVAL;
- mutex_lock(&wm8903->lock);
- if (wm8903->deemph != deemph) {
- wm8903->deemph = deemph;
- wm8903_set_deemph(component);
- ret = 1;
- }
- mutex_unlock(&wm8903->lock);
- return ret;
- }
- /* ALSA can only do steps of .01dB */
- static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
- static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
- static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
- static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
- static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
- static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
- static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
- static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
- static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
- static const char *hpf_mode_text[] = {
- "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
- };
- static SOC_ENUM_SINGLE_DECL(hpf_mode,
- WM8903_ADC_DIGITAL_0, 5, hpf_mode_text);
- static const char *osr_text[] = {
- "Low power", "High performance"
- };
- static SOC_ENUM_SINGLE_DECL(adc_osr,
- WM8903_ANALOGUE_ADC_0, 0, osr_text);
- static SOC_ENUM_SINGLE_DECL(dac_osr,
- WM8903_DAC_DIGITAL_1, 0, osr_text);
- static const char *drc_slope_text[] = {
- "1", "1/2", "1/4", "1/8", "1/16", "0"
- };
- static SOC_ENUM_SINGLE_DECL(drc_slope_r0,
- WM8903_DRC_2, 3, drc_slope_text);
- static SOC_ENUM_SINGLE_DECL(drc_slope_r1,
- WM8903_DRC_2, 0, drc_slope_text);
- static const char *drc_attack_text[] = {
- "instantaneous",
- "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
- "46.4ms", "92.8ms", "185.6ms"
- };
- static SOC_ENUM_SINGLE_DECL(drc_attack,
- WM8903_DRC_1, 12, drc_attack_text);
- static const char *drc_decay_text[] = {
- "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
- "23.87s", "47.56s"
- };
- static SOC_ENUM_SINGLE_DECL(drc_decay,
- WM8903_DRC_1, 8, drc_decay_text);
- static const char *drc_ff_delay_text[] = {
- "5 samples", "9 samples"
- };
- static SOC_ENUM_SINGLE_DECL(drc_ff_delay,
- WM8903_DRC_0, 5, drc_ff_delay_text);
- static const char *drc_qr_decay_text[] = {
- "0.725ms", "1.45ms", "5.8ms"
- };
- static SOC_ENUM_SINGLE_DECL(drc_qr_decay,
- WM8903_DRC_1, 4, drc_qr_decay_text);
- static const char *drc_smoothing_text[] = {
- "Low", "Medium", "High"
- };
- static SOC_ENUM_SINGLE_DECL(drc_smoothing,
- WM8903_DRC_0, 11, drc_smoothing_text);
- static const char *soft_mute_text[] = {
- "Fast (fs/2)", "Slow (fs/32)"
- };
- static SOC_ENUM_SINGLE_DECL(soft_mute,
- WM8903_DAC_DIGITAL_1, 10, soft_mute_text);
- static const char *mute_mode_text[] = {
- "Hard", "Soft"
- };
- static SOC_ENUM_SINGLE_DECL(mute_mode,
- WM8903_DAC_DIGITAL_1, 9, mute_mode_text);
- static const char *companding_text[] = {
- "ulaw", "alaw"
- };
- static SOC_ENUM_SINGLE_DECL(dac_companding,
- WM8903_AUDIO_INTERFACE_0, 0, companding_text);
- static SOC_ENUM_SINGLE_DECL(adc_companding,
- WM8903_AUDIO_INTERFACE_0, 2, companding_text);
- static const char *input_mode_text[] = {
- "Single-Ended", "Differential Line", "Differential Mic"
- };
- static SOC_ENUM_SINGLE_DECL(linput_mode_enum,
- WM8903_ANALOGUE_LEFT_INPUT_1, 0, input_mode_text);
- static SOC_ENUM_SINGLE_DECL(rinput_mode_enum,
- WM8903_ANALOGUE_RIGHT_INPUT_1, 0, input_mode_text);
- static const char *linput_mux_text[] = {
- "IN1L", "IN2L", "IN3L"
- };
- static SOC_ENUM_SINGLE_DECL(linput_enum,
- WM8903_ANALOGUE_LEFT_INPUT_1, 2, linput_mux_text);
- static SOC_ENUM_SINGLE_DECL(linput_inv_enum,
- WM8903_ANALOGUE_LEFT_INPUT_1, 4, linput_mux_text);
- static const char *rinput_mux_text[] = {
- "IN1R", "IN2R", "IN3R"
- };
- static SOC_ENUM_SINGLE_DECL(rinput_enum,
- WM8903_ANALOGUE_RIGHT_INPUT_1, 2, rinput_mux_text);
- static SOC_ENUM_SINGLE_DECL(rinput_inv_enum,
- WM8903_ANALOGUE_RIGHT_INPUT_1, 4, rinput_mux_text);
- static const char *sidetone_text[] = {
- "None", "Left", "Right"
- };
- static SOC_ENUM_SINGLE_DECL(lsidetone_enum,
- WM8903_DAC_DIGITAL_0, 2, sidetone_text);
- static SOC_ENUM_SINGLE_DECL(rsidetone_enum,
- WM8903_DAC_DIGITAL_0, 0, sidetone_text);
- static const char *adcinput_text[] = {
- "ADC", "DMIC"
- };
- static SOC_ENUM_SINGLE_DECL(adcinput_enum,
- WM8903_CLOCK_RATE_TEST_4, 9, adcinput_text);
- static const char *aif_text[] = {
- "Left", "Right"
- };
- static SOC_ENUM_SINGLE_DECL(lcapture_enum,
- WM8903_AUDIO_INTERFACE_0, 7, aif_text);
- static SOC_ENUM_SINGLE_DECL(rcapture_enum,
- WM8903_AUDIO_INTERFACE_0, 6, aif_text);
- static SOC_ENUM_SINGLE_DECL(lplay_enum,
- WM8903_AUDIO_INTERFACE_0, 5, aif_text);
- static SOC_ENUM_SINGLE_DECL(rplay_enum,
- WM8903_AUDIO_INTERFACE_0, 4, aif_text);
- static const struct snd_kcontrol_new wm8903_snd_controls[] = {
- /* Input PGAs - No TLV since the scale depends on PGA mode */
- SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
- 7, 1, 1),
- SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
- 0, 31, 0),
- SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
- 6, 1, 0),
- SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
- 7, 1, 1),
- SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
- 0, 31, 0),
- SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
- 6, 1, 0),
- /* ADCs */
- SOC_ENUM("ADC OSR", adc_osr),
- SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
- SOC_ENUM("HPF Mode", hpf_mode),
- SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
- SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
- SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
- SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
- drc_tlv_thresh),
- SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
- SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
- SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
- SOC_ENUM("DRC Attack Rate", drc_attack),
- SOC_ENUM("DRC Decay Rate", drc_decay),
- SOC_ENUM("DRC FF Delay", drc_ff_delay),
- SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
- SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
- SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
- SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
- SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
- SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
- SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
- SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
- SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
- WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
- SOC_ENUM("ADC Companding Mode", adc_companding),
- SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
- SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
- 12, 0, digital_sidetone_tlv),
- /* DAC */
- SOC_ENUM("DAC OSR", dac_osr),
- SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
- WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
- SOC_ENUM("DAC Soft Mute Rate", soft_mute),
- SOC_ENUM("DAC Mute Mode", mute_mode),
- SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
- SOC_ENUM("DAC Companding Mode", dac_companding),
- SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
- SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
- dac_boost_tlv),
- SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
- wm8903_get_deemph, wm8903_put_deemph),
- /* Headphones */
- SOC_DOUBLE_R("Headphone Switch",
- WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
- 8, 1, 1),
- SOC_DOUBLE_R("Headphone ZC Switch",
- WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
- 6, 1, 0),
- SOC_DOUBLE_R_TLV("Headphone Volume",
- WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
- 0, 63, 0, out_tlv),
- /* Line out */
- SOC_DOUBLE_R("Line Out Switch",
- WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
- 8, 1, 1),
- SOC_DOUBLE_R("Line Out ZC Switch",
- WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
- 6, 1, 0),
- SOC_DOUBLE_R_TLV("Line Out Volume",
- WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
- 0, 63, 0, out_tlv),
- /* Speaker */
- SOC_DOUBLE_R("Speaker Switch",
- WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
- SOC_DOUBLE_R("Speaker ZC Switch",
- WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
- SOC_DOUBLE_R_TLV("Speaker Volume",
- WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
- 0, 63, 0, out_tlv),
- };
- static const struct snd_kcontrol_new linput_mode_mux =
- SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
- static const struct snd_kcontrol_new rinput_mode_mux =
- SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
- static const struct snd_kcontrol_new linput_mux =
- SOC_DAPM_ENUM("Left Input Mux", linput_enum);
- static const struct snd_kcontrol_new linput_inv_mux =
- SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
- static const struct snd_kcontrol_new rinput_mux =
- SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
- static const struct snd_kcontrol_new rinput_inv_mux =
- SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
- static const struct snd_kcontrol_new lsidetone_mux =
- SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
- static const struct snd_kcontrol_new rsidetone_mux =
- SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
- static const struct snd_kcontrol_new adcinput_mux =
- SOC_DAPM_ENUM("ADC Input", adcinput_enum);
- static const struct snd_kcontrol_new lcapture_mux =
- SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
- static const struct snd_kcontrol_new rcapture_mux =
- SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
- static const struct snd_kcontrol_new lplay_mux =
- SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
- static const struct snd_kcontrol_new rplay_mux =
- SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
- static const struct snd_kcontrol_new left_output_mixer[] = {
- SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
- SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
- SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
- SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
- };
- static const struct snd_kcontrol_new right_output_mixer[] = {
- SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
- SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
- SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
- SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
- };
- static const struct snd_kcontrol_new left_speaker_mixer[] = {
- SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
- SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
- SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
- SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
- 0, 1, 0),
- };
- static const struct snd_kcontrol_new right_speaker_mixer[] = {
- SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
- SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
- SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
- 1, 1, 0),
- SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
- 0, 1, 0),
- };
- static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
- SND_SOC_DAPM_INPUT("IN1L"),
- SND_SOC_DAPM_INPUT("IN1R"),
- SND_SOC_DAPM_INPUT("IN2L"),
- SND_SOC_DAPM_INPUT("IN2R"),
- SND_SOC_DAPM_INPUT("IN3L"),
- SND_SOC_DAPM_INPUT("IN3R"),
- SND_SOC_DAPM_INPUT("DMICDAT"),
- SND_SOC_DAPM_OUTPUT("HPOUTL"),
- SND_SOC_DAPM_OUTPUT("HPOUTR"),
- SND_SOC_DAPM_OUTPUT("LINEOUTL"),
- SND_SOC_DAPM_OUTPUT("LINEOUTR"),
- SND_SOC_DAPM_OUTPUT("LOP"),
- SND_SOC_DAPM_OUTPUT("LON"),
- SND_SOC_DAPM_OUTPUT("ROP"),
- SND_SOC_DAPM_OUTPUT("RON"),
- SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
- SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
- SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
- &linput_inv_mux),
- SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
- SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
- SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
- &rinput_inv_mux),
- SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
- SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
- SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
- SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
- SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
- SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
- SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
- SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
- SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
- SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
- SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
- SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
- SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
- SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
- SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
- left_output_mixer, ARRAY_SIZE(left_output_mixer)),
- SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
- right_output_mixer, ARRAY_SIZE(right_output_mixer)),
- SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
- left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
- SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
- right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
- SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
- 1, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
- 0, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
- SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
- SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
- SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
- SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
- SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
- NULL, 0),
- SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
- wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
- SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
- };
- static const struct snd_soc_dapm_route wm8903_intercon[] = {
- { "CLK_DSP", NULL, "CLK_SYS" },
- { "MICBIAS", NULL, "CLK_SYS" },
- { "HPL_DCS", NULL, "CLK_SYS" },
- { "HPR_DCS", NULL, "CLK_SYS" },
- { "LINEOUTL_DCS", NULL, "CLK_SYS" },
- { "LINEOUTR_DCS", NULL, "CLK_SYS" },
- { "Left Input Mux", "IN1L", "IN1L" },
- { "Left Input Mux", "IN2L", "IN2L" },
- { "Left Input Mux", "IN3L", "IN3L" },
- { "Left Input Inverting Mux", "IN1L", "IN1L" },
- { "Left Input Inverting Mux", "IN2L", "IN2L" },
- { "Left Input Inverting Mux", "IN3L", "IN3L" },
- { "Right Input Mux", "IN1R", "IN1R" },
- { "Right Input Mux", "IN2R", "IN2R" },
- { "Right Input Mux", "IN3R", "IN3R" },
- { "Right Input Inverting Mux", "IN1R", "IN1R" },
- { "Right Input Inverting Mux", "IN2R", "IN2R" },
- { "Right Input Inverting Mux", "IN3R", "IN3R" },
- { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
- { "Left Input Mode Mux", "Differential Line",
- "Left Input Mux" },
- { "Left Input Mode Mux", "Differential Line",
- "Left Input Inverting Mux" },
- { "Left Input Mode Mux", "Differential Mic",
- "Left Input Mux" },
- { "Left Input Mode Mux", "Differential Mic",
- "Left Input Inverting Mux" },
- { "Right Input Mode Mux", "Single-Ended",
- "Right Input Inverting Mux" },
- { "Right Input Mode Mux", "Differential Line",
- "Right Input Mux" },
- { "Right Input Mode Mux", "Differential Line",
- "Right Input Inverting Mux" },
- { "Right Input Mode Mux", "Differential Mic",
- "Right Input Mux" },
- { "Right Input Mode Mux", "Differential Mic",
- "Right Input Inverting Mux" },
- { "Left Input PGA", NULL, "Left Input Mode Mux" },
- { "Right Input PGA", NULL, "Right Input Mode Mux" },
- { "Left ADC Input", "ADC", "Left Input PGA" },
- { "Left ADC Input", "DMIC", "DMICDAT" },
- { "Right ADC Input", "ADC", "Right Input PGA" },
- { "Right ADC Input", "DMIC", "DMICDAT" },
- { "Left Capture Mux", "Left", "ADCL" },
- { "Left Capture Mux", "Right", "ADCR" },
- { "Right Capture Mux", "Left", "ADCL" },
- { "Right Capture Mux", "Right", "ADCR" },
- { "AIFTXL", NULL, "Left Capture Mux" },
- { "AIFTXR", NULL, "Right Capture Mux" },
- { "ADCL", NULL, "Left ADC Input" },
- { "ADCL", NULL, "CLK_DSP" },
- { "ADCR", NULL, "Right ADC Input" },
- { "ADCR", NULL, "CLK_DSP" },
- { "Left Playback Mux", "Left", "AIFRXL" },
- { "Left Playback Mux", "Right", "AIFRXR" },
- { "Right Playback Mux", "Left", "AIFRXL" },
- { "Right Playback Mux", "Right", "AIFRXR" },
- { "DACL Sidetone", "Left", "ADCL" },
- { "DACL Sidetone", "Right", "ADCR" },
- { "DACR Sidetone", "Left", "ADCL" },
- { "DACR Sidetone", "Right", "ADCR" },
- { "DACL", NULL, "Left Playback Mux" },
- { "DACL", NULL, "DACL Sidetone" },
- { "DACL", NULL, "CLK_DSP" },
- { "DACR", NULL, "Right Playback Mux" },
- { "DACR", NULL, "DACR Sidetone" },
- { "DACR", NULL, "CLK_DSP" },
- { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
- { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
- { "Left Output Mixer", "DACL Switch", "DACL" },
- { "Left Output Mixer", "DACR Switch", "DACR" },
- { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
- { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
- { "Right Output Mixer", "DACL Switch", "DACL" },
- { "Right Output Mixer", "DACR Switch", "DACR" },
- { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
- { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
- { "Left Speaker Mixer", "DACL Switch", "DACL" },
- { "Left Speaker Mixer", "DACR Switch", "DACR" },
- { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
- { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
- { "Right Speaker Mixer", "DACL Switch", "DACL" },
- { "Right Speaker Mixer", "DACR Switch", "DACR" },
- { "Left Line Output PGA", NULL, "Left Output Mixer" },
- { "Right Line Output PGA", NULL, "Right Output Mixer" },
- { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
- { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
- { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
- { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
- { "HPL_ENA", NULL, "Left Headphone Output PGA" },
- { "HPR_ENA", NULL, "Right Headphone Output PGA" },
- { "HPL_ENA_DLY", NULL, "HPL_ENA" },
- { "HPR_ENA_DLY", NULL, "HPR_ENA" },
- { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
- { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
- { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
- { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
- { "HPL_DCS", NULL, "DCS Master" },
- { "HPR_DCS", NULL, "DCS Master" },
- { "LINEOUTL_DCS", NULL, "DCS Master" },
- { "LINEOUTR_DCS", NULL, "DCS Master" },
- { "HPL_DCS", NULL, "HPL_ENA_DLY" },
- { "HPR_DCS", NULL, "HPR_ENA_DLY" },
- { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
- { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
- { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
- { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
- { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
- { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
- { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
- { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
- { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
- { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
- { "HPOUTL", NULL, "HPL_RMV_SHORT" },
- { "HPOUTR", NULL, "HPR_RMV_SHORT" },
- { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
- { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
- { "LOP", NULL, "Left Speaker PGA" },
- { "LON", NULL, "Left Speaker PGA" },
- { "ROP", NULL, "Right Speaker PGA" },
- { "RON", NULL, "Right Speaker PGA" },
- { "Charge Pump", NULL, "CLK_DSP" },
- { "Left Headphone Output PGA", NULL, "Charge Pump" },
- { "Right Headphone Output PGA", NULL, "Charge Pump" },
- { "Left Line Output PGA", NULL, "Charge Pump" },
- { "Right Line Output PGA", NULL, "Charge Pump" },
- };
- static int wm8903_set_bias_level(struct snd_soc_component *component,
- enum snd_soc_bias_level level)
- {
- switch (level) {
- case SND_SOC_BIAS_ON:
- break;
- case SND_SOC_BIAS_PREPARE:
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_RES_MASK,
- WM8903_VMID_RES_50K);
- break;
- case SND_SOC_BIAS_STANDBY:
- if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
- snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
- WM8903_POBCTRL | WM8903_ISEL_MASK |
- WM8903_STARTUP_BIAS_ENA |
- WM8903_BIAS_ENA,
- WM8903_POBCTRL |
- (2 << WM8903_ISEL_SHIFT) |
- WM8903_STARTUP_BIAS_ENA);
- snd_soc_component_update_bits(component,
- WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
- WM8903_SPK_DISCHARGE,
- WM8903_SPK_DISCHARGE);
- msleep(33);
- snd_soc_component_update_bits(component, WM8903_POWER_MANAGEMENT_5,
- WM8903_SPKL_ENA | WM8903_SPKR_ENA,
- WM8903_SPKL_ENA | WM8903_SPKR_ENA);
- snd_soc_component_update_bits(component,
- WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
- WM8903_SPK_DISCHARGE, 0);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_TIE_ENA |
- WM8903_BUFIO_ENA |
- WM8903_VMID_IO_ENA |
- WM8903_VMID_SOFT_MASK |
- WM8903_VMID_RES_MASK |
- WM8903_VMID_BUF_ENA,
- WM8903_VMID_TIE_ENA |
- WM8903_BUFIO_ENA |
- WM8903_VMID_IO_ENA |
- (2 << WM8903_VMID_SOFT_SHIFT) |
- WM8903_VMID_RES_250K |
- WM8903_VMID_BUF_ENA);
- msleep(129);
- snd_soc_component_update_bits(component, WM8903_POWER_MANAGEMENT_5,
- WM8903_SPKL_ENA | WM8903_SPKR_ENA,
- 0);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_SOFT_MASK, 0);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_RES_MASK,
- WM8903_VMID_RES_50K);
- snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
- WM8903_BIAS_ENA | WM8903_POBCTRL,
- WM8903_BIAS_ENA);
- /* By default no bypass paths are enabled so
- * enable Class W support.
- */
- dev_dbg(component->dev, "Enabling Class W\n");
- snd_soc_component_update_bits(component, WM8903_CLASS_W_0,
- WM8903_CP_DYN_FREQ |
- WM8903_CP_DYN_V,
- WM8903_CP_DYN_FREQ |
- WM8903_CP_DYN_V);
- }
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_RES_MASK,
- WM8903_VMID_RES_250K);
- break;
- case SND_SOC_BIAS_OFF:
- snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
- WM8903_BIAS_ENA, 0);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_SOFT_MASK,
- 2 << WM8903_VMID_SOFT_SHIFT);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_BUF_ENA, 0);
- msleep(290);
- snd_soc_component_update_bits(component, WM8903_VMID_CONTROL_0,
- WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
- WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
- WM8903_VMID_SOFT_MASK |
- WM8903_VMID_BUF_ENA, 0);
- snd_soc_component_update_bits(component, WM8903_BIAS_CONTROL_0,
- WM8903_STARTUP_BIAS_ENA, 0);
- break;
- }
- return 0;
- }
- static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
- int clk_id, unsigned int freq, int dir)
- {
- struct snd_soc_component *component = codec_dai->component;
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- wm8903->sysclk = freq;
- return 0;
- }
- static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
- unsigned int fmt)
- {
- struct snd_soc_component *component = codec_dai->component;
- u16 aif1 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_1);
- aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
- WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
- break;
- case SND_SOC_DAIFMT_CBS_CFM:
- aif1 |= WM8903_LRCLK_DIR;
- break;
- case SND_SOC_DAIFMT_CBM_CFM:
- aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
- break;
- case SND_SOC_DAIFMT_CBM_CFS:
- aif1 |= WM8903_BCLK_DIR;
- break;
- default:
- return -EINVAL;
- }
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_DSP_A:
- aif1 |= 0x3;
- break;
- case SND_SOC_DAIFMT_DSP_B:
- aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
- break;
- case SND_SOC_DAIFMT_I2S:
- aif1 |= 0x2;
- break;
- case SND_SOC_DAIFMT_RIGHT_J:
- aif1 |= 0x1;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- break;
- default:
- return -EINVAL;
- }
- /* Clock inversion */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_DSP_A:
- case SND_SOC_DAIFMT_DSP_B:
- /* frame inversion not valid for DSP modes */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_IB_NF:
- aif1 |= WM8903_AIF_BCLK_INV;
- break;
- default:
- return -EINVAL;
- }
- break;
- case SND_SOC_DAIFMT_I2S:
- case SND_SOC_DAIFMT_RIGHT_J:
- case SND_SOC_DAIFMT_LEFT_J:
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_IB_IF:
- aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- aif1 |= WM8903_AIF_BCLK_INV;
- break;
- case SND_SOC_DAIFMT_NB_IF:
- aif1 |= WM8903_AIF_LRCLK_INV;
- break;
- default:
- return -EINVAL;
- }
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_1, aif1);
- return 0;
- }
- static int wm8903_mute(struct snd_soc_dai *codec_dai, int mute, int direction)
- {
- struct snd_soc_component *component = codec_dai->component;
- u16 reg;
- reg = snd_soc_component_read(component, WM8903_DAC_DIGITAL_1);
- if (mute)
- reg |= WM8903_DAC_MUTE;
- else
- reg &= ~WM8903_DAC_MUTE;
- snd_soc_component_write(component, WM8903_DAC_DIGITAL_1, reg);
- return 0;
- }
- /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
- * for optimal performance so we list the lower rates first and match
- * on the last match we find. */
- static struct {
- int div;
- int rate;
- int mode;
- int mclk_div;
- } clk_sys_ratios[] = {
- { 64, 0x0, 0x0, 1 },
- { 68, 0x0, 0x1, 1 },
- { 125, 0x0, 0x2, 1 },
- { 128, 0x1, 0x0, 1 },
- { 136, 0x1, 0x1, 1 },
- { 192, 0x2, 0x0, 1 },
- { 204, 0x2, 0x1, 1 },
- { 64, 0x0, 0x0, 2 },
- { 68, 0x0, 0x1, 2 },
- { 125, 0x0, 0x2, 2 },
- { 128, 0x1, 0x0, 2 },
- { 136, 0x1, 0x1, 2 },
- { 192, 0x2, 0x0, 2 },
- { 204, 0x2, 0x1, 2 },
- { 250, 0x2, 0x2, 1 },
- { 256, 0x3, 0x0, 1 },
- { 272, 0x3, 0x1, 1 },
- { 384, 0x4, 0x0, 1 },
- { 408, 0x4, 0x1, 1 },
- { 375, 0x4, 0x2, 1 },
- { 512, 0x5, 0x0, 1 },
- { 544, 0x5, 0x1, 1 },
- { 500, 0x5, 0x2, 1 },
- { 768, 0x6, 0x0, 1 },
- { 816, 0x6, 0x1, 1 },
- { 750, 0x6, 0x2, 1 },
- { 1024, 0x7, 0x0, 1 },
- { 1088, 0x7, 0x1, 1 },
- { 1000, 0x7, 0x2, 1 },
- { 1408, 0x8, 0x0, 1 },
- { 1496, 0x8, 0x1, 1 },
- { 1536, 0x9, 0x0, 1 },
- { 1632, 0x9, 0x1, 1 },
- { 1500, 0x9, 0x2, 1 },
- { 250, 0x2, 0x2, 2 },
- { 256, 0x3, 0x0, 2 },
- { 272, 0x3, 0x1, 2 },
- { 384, 0x4, 0x0, 2 },
- { 408, 0x4, 0x1, 2 },
- { 375, 0x4, 0x2, 2 },
- { 512, 0x5, 0x0, 2 },
- { 544, 0x5, 0x1, 2 },
- { 500, 0x5, 0x2, 2 },
- { 768, 0x6, 0x0, 2 },
- { 816, 0x6, 0x1, 2 },
- { 750, 0x6, 0x2, 2 },
- { 1024, 0x7, 0x0, 2 },
- { 1088, 0x7, 0x1, 2 },
- { 1000, 0x7, 0x2, 2 },
- { 1408, 0x8, 0x0, 2 },
- { 1496, 0x8, 0x1, 2 },
- { 1536, 0x9, 0x0, 2 },
- { 1632, 0x9, 0x1, 2 },
- { 1500, 0x9, 0x2, 2 },
- };
- /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
- static struct {
- int ratio;
- int div;
- } bclk_divs[] = {
- { 10, 0 },
- { 20, 2 },
- { 30, 3 },
- { 40, 4 },
- { 50, 5 },
- { 60, 7 },
- { 80, 8 },
- { 100, 9 },
- { 120, 11 },
- { 160, 12 },
- { 200, 13 },
- { 220, 14 },
- { 240, 15 },
- { 300, 17 },
- { 320, 18 },
- { 440, 19 },
- { 480, 20 },
- };
- /* Sample rates for DSP */
- static struct {
- int rate;
- int value;
- } sample_rates[] = {
- { 8000, 0 },
- { 11025, 1 },
- { 12000, 2 },
- { 16000, 3 },
- { 22050, 4 },
- { 24000, 5 },
- { 32000, 6 },
- { 44100, 7 },
- { 48000, 8 },
- { 88200, 9 },
- { 96000, 10 },
- { 0, 0 },
- };
- static int wm8903_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
- {
- struct snd_soc_component *component = dai->component;
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- int fs = params_rate(params);
- int bclk;
- int bclk_div;
- int i;
- int dsp_config;
- int clk_config;
- int best_val;
- int cur_val;
- int clk_sys;
- u16 aif1 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_1);
- u16 aif2 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_2);
- u16 aif3 = snd_soc_component_read(component, WM8903_AUDIO_INTERFACE_3);
- u16 clock0 = snd_soc_component_read(component, WM8903_CLOCK_RATES_0);
- u16 clock1 = snd_soc_component_read(component, WM8903_CLOCK_RATES_1);
- u16 dac_digital1 = snd_soc_component_read(component, WM8903_DAC_DIGITAL_1);
- /* Enable sloping stopband filter for low sample rates */
- if (fs <= 24000)
- dac_digital1 |= WM8903_DAC_SB_FILT;
- else
- dac_digital1 &= ~WM8903_DAC_SB_FILT;
- /* Configure sample rate logic for DSP - choose nearest rate */
- dsp_config = 0;
- best_val = abs(sample_rates[dsp_config].rate - fs);
- for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
- cur_val = abs(sample_rates[i].rate - fs);
- if (cur_val <= best_val) {
- dsp_config = i;
- best_val = cur_val;
- }
- }
- dev_dbg(component->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
- clock1 &= ~WM8903_SAMPLE_RATE_MASK;
- clock1 |= sample_rates[dsp_config].value;
- aif1 &= ~WM8903_AIF_WL_MASK;
- bclk = 2 * fs;
- switch (params_width(params)) {
- case 16:
- bclk *= 16;
- break;
- case 20:
- bclk *= 20;
- aif1 |= 0x4;
- break;
- case 24:
- bclk *= 24;
- aif1 |= 0x8;
- break;
- case 32:
- bclk *= 32;
- aif1 |= 0xc;
- break;
- default:
- return -EINVAL;
- }
- dev_dbg(component->dev, "MCLK = %dHz, target sample rate = %dHz\n",
- wm8903->sysclk, fs);
- /* We may not have an MCLK which allows us to generate exactly
- * the clock we want, particularly with USB derived inputs, so
- * approximate.
- */
- clk_config = 0;
- best_val = abs((wm8903->sysclk /
- (clk_sys_ratios[0].mclk_div *
- clk_sys_ratios[0].div)) - fs);
- for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
- cur_val = abs((wm8903->sysclk /
- (clk_sys_ratios[i].mclk_div *
- clk_sys_ratios[i].div)) - fs);
- if (cur_val <= best_val) {
- clk_config = i;
- best_val = cur_val;
- }
- }
- if (clk_sys_ratios[clk_config].mclk_div == 2) {
- clock0 |= WM8903_MCLKDIV2;
- clk_sys = wm8903->sysclk / 2;
- } else {
- clock0 &= ~WM8903_MCLKDIV2;
- clk_sys = wm8903->sysclk;
- }
- clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
- WM8903_CLK_SYS_MODE_MASK);
- clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
- clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
- dev_dbg(component->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
- clk_sys_ratios[clk_config].rate,
- clk_sys_ratios[clk_config].mode,
- clk_sys_ratios[clk_config].div);
- dev_dbg(component->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
- /* We may not get quite the right frequency if using
- * approximate clocks so look for the closest match that is
- * higher than the target (we need to ensure that there enough
- * BCLKs to clock out the samples).
- */
- bclk_div = 0;
- i = 1;
- while (i < ARRAY_SIZE(bclk_divs)) {
- cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
- if (cur_val < 0) /* BCLK table is sorted */
- break;
- bclk_div = i;
- i++;
- }
- aif2 &= ~WM8903_BCLK_DIV_MASK;
- aif3 &= ~WM8903_LRCLK_RATE_MASK;
- dev_dbg(component->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
- bclk_divs[bclk_div].ratio / 10, bclk,
- (clk_sys * 10) / bclk_divs[bclk_div].ratio);
- aif2 |= bclk_divs[bclk_div].div;
- aif3 |= bclk / fs;
- wm8903->fs = params_rate(params);
- wm8903_set_deemph(component);
- snd_soc_component_write(component, WM8903_CLOCK_RATES_0, clock0);
- snd_soc_component_write(component, WM8903_CLOCK_RATES_1, clock1);
- snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_1, aif1);
- snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_2, aif2);
- snd_soc_component_write(component, WM8903_AUDIO_INTERFACE_3, aif3);
- snd_soc_component_write(component, WM8903_DAC_DIGITAL_1, dac_digital1);
- return 0;
- }
- /**
- * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
- *
- * @component: WM8903 component
- * @jack: jack to report detection events on
- * @det: value to report for presence detection
- * @shrt: value to report for short detection
- *
- * Enable microphone detection via IRQ on the WM8903. If GPIOs are
- * being used to bring out signals to the processor then only platform
- * data configuration is needed for WM8903 and processor GPIOs should
- * be configured using snd_soc_jack_add_gpios() instead.
- *
- * The current threasholds for detection should be configured using
- * micdet_cfg in the platform data. Using this function will force on
- * the microphone bias for the device.
- */
- int wm8903_mic_detect(struct snd_soc_component *component, struct snd_soc_jack *jack,
- int det, int shrt)
- {
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
- dev_dbg(component->dev, "Enabling microphone detection: %x %x\n",
- det, shrt);
- /* Store the configuration */
- wm8903->mic_jack = jack;
- wm8903->mic_det = det;
- wm8903->mic_short = shrt;
- /* Enable interrupts we've got a report configured for */
- if (det)
- irq_mask &= ~WM8903_MICDET_EINT;
- if (shrt)
- irq_mask &= ~WM8903_MICSHRT_EINT;
- snd_soc_component_update_bits(component, WM8903_INTERRUPT_STATUS_1_MASK,
- WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
- irq_mask);
- if (det || shrt) {
- /* Enable mic detection, this may not have been set through
- * platform data (eg, if the defaults are OK). */
- snd_soc_component_update_bits(component, WM8903_WRITE_SEQUENCER_0,
- WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
- snd_soc_component_update_bits(component, WM8903_MIC_BIAS_CONTROL_0,
- WM8903_MICDET_ENA, WM8903_MICDET_ENA);
- } else {
- snd_soc_component_update_bits(component, WM8903_MIC_BIAS_CONTROL_0,
- WM8903_MICDET_ENA, 0);
- }
- return 0;
- }
- EXPORT_SYMBOL_GPL(wm8903_mic_detect);
- static irqreturn_t wm8903_irq(int irq, void *data)
- {
- struct wm8903_priv *wm8903 = data;
- int mic_report, ret;
- unsigned int int_val, mask, int_pol;
- ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
- &mask);
- if (ret != 0) {
- dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
- return IRQ_NONE;
- }
- ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
- if (ret != 0) {
- dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
- return IRQ_NONE;
- }
- int_val &= ~mask;
- if (int_val & WM8903_WSEQ_BUSY_EINT) {
- dev_warn(wm8903->dev, "Write sequencer done\n");
- }
- /*
- * The rest is microphone jack detection. We need to manually
- * invert the polarity of the interrupt after each event - to
- * simplify the code keep track of the last state we reported
- * and just invert the relevant bits in both the report and
- * the polarity register.
- */
- mic_report = wm8903->mic_last_report;
- ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
- &int_pol);
- if (ret != 0) {
- dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
- ret);
- return IRQ_HANDLED;
- }
- #ifndef CONFIG_SND_SOC_WM8903_MODULE
- if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
- trace_snd_soc_jack_irq(dev_name(wm8903->dev));
- #endif
- if (int_val & WM8903_MICSHRT_EINT) {
- dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
- mic_report ^= wm8903->mic_short;
- int_pol ^= WM8903_MICSHRT_INV;
- }
- if (int_val & WM8903_MICDET_EINT) {
- dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
- mic_report ^= wm8903->mic_det;
- int_pol ^= WM8903_MICDET_INV;
- msleep(wm8903->mic_delay);
- }
- regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
- WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
- snd_soc_jack_report(wm8903->mic_jack, mic_report,
- wm8903->mic_short | wm8903->mic_det);
- wm8903->mic_last_report = mic_report;
- return IRQ_HANDLED;
- }
- #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
- SNDRV_PCM_RATE_11025 | \
- SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | \
- SNDRV_PCM_RATE_32000 | \
- SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000 | \
- SNDRV_PCM_RATE_88200 | \
- SNDRV_PCM_RATE_96000)
- #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
- SNDRV_PCM_RATE_11025 | \
- SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | \
- SNDRV_PCM_RATE_32000 | \
- SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000)
- #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
- SNDRV_PCM_FMTBIT_S20_3LE |\
- SNDRV_PCM_FMTBIT_S24_LE)
- static const struct snd_soc_dai_ops wm8903_dai_ops = {
- .hw_params = wm8903_hw_params,
- .mute_stream = wm8903_mute,
- .set_fmt = wm8903_set_dai_fmt,
- .set_sysclk = wm8903_set_dai_sysclk,
- .no_capture_mute = 1,
- };
- static struct snd_soc_dai_driver wm8903_dai = {
- .name = "wm8903-hifi",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = WM8903_PLAYBACK_RATES,
- .formats = WM8903_FORMATS,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = WM8903_CAPTURE_RATES,
- .formats = WM8903_FORMATS,
- },
- .ops = &wm8903_dai_ops,
- .symmetric_rate = 1,
- };
- static int wm8903_resume(struct snd_soc_component *component)
- {
- struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component);
- regcache_sync(wm8903->regmap);
- return 0;
- }
- #ifdef CONFIG_GPIOLIB
- static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
- {
- if (offset >= WM8903_NUM_GPIO)
- return -EINVAL;
- return 0;
- }
- static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
- {
- struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
- unsigned int mask, val;
- int ret;
- mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
- val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
- WM8903_GP1_DIR;
- ret = regmap_update_bits(wm8903->regmap,
- WM8903_GPIO_CONTROL_1 + offset, mask, val);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
- {
- struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
- unsigned int reg;
- regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, ®);
- return !!((reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT);
- }
- static int wm8903_gpio_direction_out(struct gpio_chip *chip,
- unsigned offset, int value)
- {
- struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
- unsigned int mask, val;
- int ret;
- mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
- val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
- (value << WM8903_GP2_LVL_SHIFT);
- ret = regmap_update_bits(wm8903->regmap,
- WM8903_GPIO_CONTROL_1 + offset, mask, val);
- if (ret < 0)
- return ret;
- return 0;
- }
- static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
- {
- struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
- regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
- WM8903_GP1_LVL_MASK,
- !!value << WM8903_GP1_LVL_SHIFT);
- }
- static const struct gpio_chip wm8903_template_chip = {
- .label = "wm8903",
- .owner = THIS_MODULE,
- .request = wm8903_gpio_request,
- .direction_input = wm8903_gpio_direction_in,
- .get = wm8903_gpio_get,
- .direction_output = wm8903_gpio_direction_out,
- .set = wm8903_gpio_set,
- .can_sleep = 1,
- };
- static void wm8903_init_gpio(struct wm8903_priv *wm8903)
- {
- struct wm8903_platform_data *pdata = wm8903->pdata;
- int ret;
- wm8903->gpio_chip = wm8903_template_chip;
- wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
- wm8903->gpio_chip.parent = wm8903->dev;
- if (pdata->gpio_base)
- wm8903->gpio_chip.base = pdata->gpio_base;
- else
- wm8903->gpio_chip.base = -1;
- ret = gpiochip_add_data(&wm8903->gpio_chip, wm8903);
- if (ret != 0)
- dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
- }
- static void wm8903_free_gpio(struct wm8903_priv *wm8903)
- {
- gpiochip_remove(&wm8903->gpio_chip);
- }
- #else
- static void wm8903_init_gpio(struct wm8903_priv *wm8903)
- {
- }
- static void wm8903_free_gpio(struct wm8903_priv *wm8903)
- {
- }
- #endif
- static const struct snd_soc_component_driver soc_component_dev_wm8903 = {
- .resume = wm8903_resume,
- .set_bias_level = wm8903_set_bias_level,
- .seq_notifier = wm8903_seq_notifier,
- .controls = wm8903_snd_controls,
- .num_controls = ARRAY_SIZE(wm8903_snd_controls),
- .dapm_widgets = wm8903_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
- .dapm_routes = wm8903_intercon,
- .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
- .suspend_bias_off = 1,
- .idle_bias_on = 1,
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static const struct regmap_config wm8903_regmap = {
- .reg_bits = 8,
- .val_bits = 16,
- .max_register = WM8903_MAX_REGISTER,
- .volatile_reg = wm8903_volatile_register,
- .readable_reg = wm8903_readable_register,
- .cache_type = REGCACHE_RBTREE,
- .reg_defaults = wm8903_reg_defaults,
- .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
- };
- static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
- struct wm8903_platform_data *pdata)
- {
- struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
- if (!irq_data) {
- dev_err(&i2c->dev, "Invalid IRQ: %d\n",
- i2c->irq);
- return -EINVAL;
- }
- switch (irqd_get_trigger_type(irq_data)) {
- case IRQ_TYPE_NONE:
- default:
- /*
- * We assume the controller imposes no restrictions,
- * so we are able to select active-high
- */
- fallthrough;
- case IRQ_TYPE_LEVEL_HIGH:
- pdata->irq_active_low = false;
- break;
- case IRQ_TYPE_LEVEL_LOW:
- pdata->irq_active_low = true;
- break;
- }
- return 0;
- }
- static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
- struct wm8903_platform_data *pdata)
- {
- const struct device_node *np = i2c->dev.of_node;
- u32 val32;
- int i;
- if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
- pdata->micdet_cfg = val32;
- if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
- pdata->micdet_delay = val32;
- if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
- ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
- /*
- * In device tree: 0 means "write 0",
- * 0xffffffff means "don't touch".
- *
- * In platform data: 0 means "don't touch",
- * 0x8000 means "write 0".
- *
- * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
- *
- * Convert from DT to pdata representation here,
- * so no other code needs to change.
- */
- for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
- if (pdata->gpio_cfg[i] == 0) {
- pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
- } else if (pdata->gpio_cfg[i] == 0xffffffff) {
- pdata->gpio_cfg[i] = 0;
- } else if (pdata->gpio_cfg[i] > 0x7fff) {
- dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
- i, pdata->gpio_cfg[i]);
- return -EINVAL;
- }
- }
- }
- return 0;
- }
- static int wm8903_i2c_probe(struct i2c_client *i2c)
- {
- struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
- struct wm8903_priv *wm8903;
- int trigger;
- bool mic_gpio = false;
- unsigned int val, irq_pol;
- int ret, i;
- wm8903 = devm_kzalloc(&i2c->dev, sizeof(*wm8903), GFP_KERNEL);
- if (wm8903 == NULL)
- return -ENOMEM;
- mutex_init(&wm8903->lock);
- wm8903->dev = &i2c->dev;
- wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
- if (IS_ERR(wm8903->regmap)) {
- ret = PTR_ERR(wm8903->regmap);
- dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
- ret);
- return ret;
- }
- i2c_set_clientdata(i2c, wm8903);
- /* If no platform data was supplied, create storage for defaults */
- if (pdata) {
- wm8903->pdata = pdata;
- } else {
- wm8903->pdata = devm_kzalloc(&i2c->dev, sizeof(*wm8903->pdata),
- GFP_KERNEL);
- if (!wm8903->pdata)
- return -ENOMEM;
- if (i2c->irq) {
- ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
- if (ret != 0)
- return ret;
- }
- if (i2c->dev.of_node) {
- ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
- if (ret != 0)
- return ret;
- }
- }
- pdata = wm8903->pdata;
- for (i = 0; i < ARRAY_SIZE(wm8903->supplies); i++)
- wm8903->supplies[i].supply = wm8903_supply_names[i];
- ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8903->supplies),
- wm8903->supplies);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
- return ret;
- }
- ret = regulator_bulk_enable(ARRAY_SIZE(wm8903->supplies),
- wm8903->supplies);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
- return ret;
- }
- ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
- goto err;
- }
- if (val != 0x8903) {
- dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
- ret = -ENODEV;
- goto err;
- }
- ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
- goto err;
- }
- dev_info(&i2c->dev, "WM8903 revision %c\n",
- (val & WM8903_CHIP_REV_MASK) + 'A');
- /* Reset the device */
- regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
- wm8903_init_gpio(wm8903);
- /* Set up GPIO pin state, detect if any are MIC detect outputs */
- for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
- if ((!pdata->gpio_cfg[i]) ||
- (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
- continue;
- regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
- pdata->gpio_cfg[i] & 0x7fff);
- val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
- >> WM8903_GP1_FN_SHIFT;
- switch (val) {
- case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
- case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
- mic_gpio = true;
- break;
- default:
- break;
- }
- }
- /* Set up microphone detection */
- regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
- pdata->micdet_cfg);
- /* Microphone detection needs the WSEQ clock */
- if (pdata->micdet_cfg)
- regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
- WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
- /* If microphone detection is enabled by pdata but
- * detected via IRQ then interrupts can be lost before
- * the machine driver has set up microphone detection
- * IRQs as the IRQs are clear on read. The detection
- * will be enabled when the machine driver configures.
- */
- WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
- wm8903->mic_delay = pdata->micdet_delay;
- if (i2c->irq) {
- if (pdata->irq_active_low) {
- trigger = IRQF_TRIGGER_LOW;
- irq_pol = WM8903_IRQ_POL;
- } else {
- trigger = IRQF_TRIGGER_HIGH;
- irq_pol = 0;
- }
- regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
- WM8903_IRQ_POL, irq_pol);
- ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
- trigger | IRQF_ONESHOT,
- "wm8903", wm8903);
- if (ret != 0) {
- dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
- ret);
- goto err;
- }
- /* Enable write sequencer interrupts */
- regmap_update_bits(wm8903->regmap,
- WM8903_INTERRUPT_STATUS_1_MASK,
- WM8903_IM_WSEQ_BUSY_EINT, 0);
- }
- /* Latch volume update bits */
- regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
- WM8903_ADCVU, WM8903_ADCVU);
- regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
- WM8903_ADCVU, WM8903_ADCVU);
- regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
- WM8903_DACVU, WM8903_DACVU);
- regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
- WM8903_DACVU, WM8903_DACVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
- WM8903_HPOUTVU, WM8903_HPOUTVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
- WM8903_HPOUTVU, WM8903_HPOUTVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
- WM8903_LINEOUTVU, WM8903_LINEOUTVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
- WM8903_LINEOUTVU, WM8903_LINEOUTVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
- WM8903_SPKVU, WM8903_SPKVU);
- regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
- WM8903_SPKVU, WM8903_SPKVU);
- /* Enable DAC soft mute by default */
- regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
- WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
- WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
- ret = devm_snd_soc_register_component(&i2c->dev,
- &soc_component_dev_wm8903, &wm8903_dai, 1);
- if (ret != 0)
- goto err;
- return 0;
- err:
- regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
- wm8903->supplies);
- return ret;
- }
- static void wm8903_i2c_remove(struct i2c_client *client)
- {
- struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
- regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
- wm8903->supplies);
- if (client->irq)
- free_irq(client->irq, wm8903);
- wm8903_free_gpio(wm8903);
- }
- static const struct of_device_id wm8903_of_match[] = {
- { .compatible = "wlf,wm8903", },
- {},
- };
- MODULE_DEVICE_TABLE(of, wm8903_of_match);
- static const struct i2c_device_id wm8903_i2c_id[] = {
- { "wm8903", 0 },
- { }
- };
- MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
- static struct i2c_driver wm8903_i2c_driver = {
- .driver = {
- .name = "wm8903",
- .of_match_table = wm8903_of_match,
- },
- .probe_new = wm8903_i2c_probe,
- .remove = wm8903_i2c_remove,
- .id_table = wm8903_i2c_id,
- };
- module_i2c_driver(wm8903_i2c_driver);
- MODULE_DESCRIPTION("ASoC WM8903 driver");
- MODULE_AUTHOR("Mark Brown <[email protected]>");
- MODULE_LICENSE("GPL");
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