| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/sound/soc/codecs/ (Linux Kernel Version 6.17.9©) Datei vom 24.10.2025 mit Größe 92 kB |
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Quelle wm8996.cSprache: C |
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// SPDX-License-Identifier: GPL-2.0-or-later /* * wm8996.c - WM8996 audio codec interface * * Copyright 2011-2 Wolfson Microelectronics PLC. * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/completion.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/gcd.h> #include <linux/gpio/driver.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/initval.h> #include <sound/tlv.h> #include <trace/events/asoc.h> #include <sound/wm8996.h> #include "wm8996.h" #define WM8996_AIFS 2 #define HPOUT1L 1 #define HPOUT1R 2 #define HPOUT2L 4 #define HPOUT2R 8 #define WM8996_NUM_SUPPLIES 3 static const char *wm8996_supply_names[WM8996_NUM_SUPPLIES] = { "DBVDD", "AVDD1", "AVDD2", }; struct wm8996_priv { struct device *dev; struct regmap *regmap; struct snd_soc_component *component; struct gpio_desc *ldo_ena; int sysclk; int sysclk_src; int fll_src; int fll_fref; int fll_fout; struct completion fll_lock; u16 dcs_pending; struct completion dcs_done; u16 hpout_ena; u16 hpout_pending; struct regulator_bulk_data supplies[WM8996_NUM_SUPPLIES]; struct notifier_block disable_nb[WM8996_NUM_SUPPLIES]; int bg_ena; struct wm8996_pdata pdata; int rx_rate[WM8996_AIFS]; int bclk_rate[WM8996_AIFS]; /* Platform dependant ReTune mobile configuration */ int num_retune_mobile_texts; const char **retune_mobile_texts; int retune_mobile_cfg[2]; struct soc_enum retune_mobile_enum; struct snd_soc_jack *jack; bool detecting; bool jack_mic; int jack_flips; wm8996_polarity_fn polarity_cb; #ifdef CONFIG_GPIOLIB struct gpio_chip gpio_chip; #endif }; /* We can't use the same notifier block for more than one supply and * there's no way I can see to get from a callback to the caller * except container_of(). */ #define WM8996_REGULATOR_EVENT(n) \ static int wm8996_regulator_event_##n(struct notifier_block *nb, \ unsigned long event, void *data) \ { \ struct wm8996_priv *wm8996 = container_of(nb, struct wm8996_priv, \ disable_nb[n]); \ if (event & REGULATOR_EVENT_DISABLE) { \ regcache_mark_dirty(wm8996->regmap); \ } \ return 0; \ } WM8996_REGULATOR_EVENT(0) WM8996_REGULATOR_EVENT(1) WM8996_REGULATOR_EVENT(2) static const struct reg_default wm8996_reg[] = { { WM8996_POWER_MANAGEMENT_1, 0x0 }, { WM8996_POWER_MANAGEMENT_2, 0x0 }, { WM8996_POWER_MANAGEMENT_3, 0x0 }, { WM8996_POWER_MANAGEMENT_4, 0x0 }, { WM8996_POWER_MANAGEMENT_5, 0x0 }, { WM8996_POWER_MANAGEMENT_6, 0x0 }, { WM8996_POWER_MANAGEMENT_7, 0x10 }, { WM8996_POWER_MANAGEMENT_8, 0x0 }, { WM8996_LEFT_LINE_INPUT_VOLUME, 0x0 }, { WM8996_RIGHT_LINE_INPUT_VOLUME, 0x0 }, { WM8996_LINE_INPUT_CONTROL, 0x0 }, { WM8996_DAC1_HPOUT1_VOLUME, 0x88 }, { WM8996_DAC2_HPOUT2_VOLUME, 0x88 }, { WM8996_DAC1_LEFT_VOLUME, 0x2c0 }, { WM8996_DAC1_RIGHT_VOLUME, 0x2c0 }, { WM8996_DAC2_LEFT_VOLUME, 0x2c0 }, { WM8996_DAC2_RIGHT_VOLUME, 0x2c0 }, { WM8996_OUTPUT1_LEFT_VOLUME, 0x80 }, { WM8996_OUTPUT1_RIGHT_VOLUME, 0x80 }, { WM8996_OUTPUT2_LEFT_VOLUME, 0x80 }, { WM8996_OUTPUT2_RIGHT_VOLUME, 0x80 }, { WM8996_MICBIAS_1, 0x39 }, { WM8996_MICBIAS_2, 0x39 }, { WM8996_LDO_1, 0x3 }, { WM8996_LDO_2, 0x13 }, { WM8996_ACCESSORY_DETECT_MODE_1, 0x4 }, { WM8996_ACCESSORY_DETECT_MODE_2, 0x0 }, { WM8996_HEADPHONE_DETECT_1, 0x20 }, { WM8996_HEADPHONE_DETECT_2, 0x0 }, { WM8996_MIC_DETECT_1, 0x7600 }, { WM8996_MIC_DETECT_2, 0xbf }, { WM8996_CHARGE_PUMP_1, 0x1f25 }, { WM8996_CHARGE_PUMP_2, 0xab19 }, { WM8996_DC_SERVO_1, 0x0 }, { WM8996_DC_SERVO_3, 0x0 }, { WM8996_DC_SERVO_5, 0x2a2a }, { WM8996_DC_SERVO_6, 0x0 }, { WM8996_DC_SERVO_7, 0x0 }, { WM8996_ANALOGUE_HP_1, 0x0 }, { WM8996_ANALOGUE_HP_2, 0x0 }, { WM8996_CONTROL_INTERFACE_1, 0x8004 }, { WM8996_WRITE_SEQUENCER_CTRL_1, 0x0 }, { WM8996_WRITE_SEQUENCER_CTRL_2, 0x0 }, { WM8996_AIF_CLOCKING_1, 0x0 }, { WM8996_AIF_CLOCKING_2, 0x0 }, { WM8996_CLOCKING_1, 0x10 }, { WM8996_CLOCKING_2, 0x0 }, { WM8996_AIF_RATE, 0x83 }, { WM8996_FLL_CONTROL_1, 0x0 }, { WM8996_FLL_CONTROL_2, 0x0 }, { WM8996_FLL_CONTROL_3, 0x0 }, { WM8996_FLL_CONTROL_4, 0x5dc0 }, { WM8996_FLL_CONTROL_5, 0xc84 }, { WM8996_FLL_EFS_1, 0x0 }, { WM8996_FLL_EFS_2, 0x2 }, { WM8996_AIF1_CONTROL, 0x0 }, { WM8996_AIF1_BCLK, 0x0 }, { WM8996_AIF1_TX_LRCLK_1, 0x80 }, { WM8996_AIF1_TX_LRCLK_2, 0x8 }, { WM8996_AIF1_RX_LRCLK_1, 0x80 }, { WM8996_AIF1_RX_LRCLK_2, 0x0 }, { WM8996_AIF1TX_DATA_CONFIGURATION_1, 0x1818 }, { WM8996_AIF1TX_DATA_CONFIGURATION_2, 0 }, { WM8996_AIF1RX_DATA_CONFIGURATION, 0x1818 }, { WM8996_AIF1TX_CHANNEL_0_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_CHANNEL_1_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_CHANNEL_2_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_CHANNEL_3_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_CHANNEL_4_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_CHANNEL_5_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_0_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_1_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_2_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_3_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_4_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_CHANNEL_5_CONFIGURATION, 0x0 }, { WM8996_AIF1RX_MONO_CONFIGURATION, 0x0 }, { WM8996_AIF1TX_TEST, 0x7 }, { WM8996_AIF2_CONTROL, 0x0 }, { WM8996_AIF2_BCLK, 0x0 }, { WM8996_AIF2_TX_LRCLK_1, 0x80 }, { WM8996_AIF2_TX_LRCLK_2, 0x8 }, { WM8996_AIF2_RX_LRCLK_1, 0x80 }, { WM8996_AIF2_RX_LRCLK_2, 0x0 }, { WM8996_AIF2TX_DATA_CONFIGURATION_1, 0x1818 }, { WM8996_AIF2RX_DATA_CONFIGURATION, 0x1818 }, { WM8996_AIF2RX_DATA_CONFIGURATION, 0x0 }, { WM8996_AIF2TX_CHANNEL_0_CONFIGURATION, 0x0 }, { WM8996_AIF2TX_CHANNEL_1_CONFIGURATION, 0x0 }, { WM8996_AIF2RX_CHANNEL_0_CONFIGURATION, 0x0 }, { WM8996_AIF2RX_CHANNEL_1_CONFIGURATION, 0x0 }, { WM8996_AIF2RX_MONO_CONFIGURATION, 0x0 }, { WM8996_AIF2TX_TEST, 0x1 }, { WM8996_DSP1_TX_LEFT_VOLUME, 0xc0 }, { WM8996_DSP1_TX_RIGHT_VOLUME, 0xc0 }, { WM8996_DSP1_RX_LEFT_VOLUME, 0xc0 }, { WM8996_DSP1_RX_RIGHT_VOLUME, 0xc0 }, { WM8996_DSP1_TX_FILTERS, 0x2000 }, { WM8996_DSP1_RX_FILTERS_1, 0x200 }, { WM8996_DSP1_RX_FILTERS_2, 0x10 }, { WM8996_DSP1_DRC_1, 0x98 }, { WM8996_DSP1_DRC_2, 0x845 }, { WM8996_DSP1_RX_EQ_GAINS_1, 0x6318 }, { WM8996_DSP1_RX_EQ_GAINS_2, 0x6300 }, { WM8996_DSP1_RX_EQ_BAND_1_A, 0xfca }, { WM8996_DSP1_RX_EQ_BAND_1_B, 0x400 }, { WM8996_DSP1_RX_EQ_BAND_1_PG, 0xd8 }, { WM8996_DSP1_RX_EQ_BAND_2_A, 0x1eb5 }, { WM8996_DSP1_RX_EQ_BAND_2_B, 0xf145 }, { WM8996_DSP1_RX_EQ_BAND_2_C, 0xb75 }, { WM8996_DSP1_RX_EQ_BAND_2_PG, 0x1c5 }, { WM8996_DSP1_RX_EQ_BAND_3_A, 0x1c58 }, { WM8996_DSP1_RX_EQ_BAND_3_B, 0xf373 }, { WM8996_DSP1_RX_EQ_BAND_3_C, 0xa54 }, { WM8996_DSP1_RX_EQ_BAND_3_PG, 0x558 }, { WM8996_DSP1_RX_EQ_BAND_4_A, 0x168e }, { WM8996_DSP1_RX_EQ_BAND_4_B, 0xf829 }, { WM8996_DSP1_RX_EQ_BAND_4_C, 0x7ad }, { WM8996_DSP1_RX_EQ_BAND_4_PG, 0x1103 }, { WM8996_DSP1_RX_EQ_BAND_5_A, 0x564 }, { WM8996_DSP1_RX_EQ_BAND_5_B, 0x559 }, { WM8996_DSP1_RX_EQ_BAND_5_PG, 0x4000 }, { WM8996_DSP2_TX_LEFT_VOLUME, 0xc0 }, { WM8996_DSP2_TX_RIGHT_VOLUME, 0xc0 }, { WM8996_DSP2_RX_LEFT_VOLUME, 0xc0 }, { WM8996_DSP2_RX_RIGHT_VOLUME, 0xc0 }, { WM8996_DSP2_TX_FILTERS, 0x2000 }, { WM8996_DSP2_RX_FILTERS_1, 0x200 }, { WM8996_DSP2_RX_FILTERS_2, 0x10 }, { WM8996_DSP2_DRC_1, 0x98 }, { WM8996_DSP2_DRC_2, 0x845 }, { WM8996_DSP2_RX_EQ_GAINS_1, 0x6318 }, { WM8996_DSP2_RX_EQ_GAINS_2, 0x6300 }, { WM8996_DSP2_RX_EQ_BAND_1_A, 0xfca }, { WM8996_DSP2_RX_EQ_BAND_1_B, 0x400 }, { WM8996_DSP2_RX_EQ_BAND_1_PG, 0xd8 }, { WM8996_DSP2_RX_EQ_BAND_2_A, 0x1eb5 }, { WM8996_DSP2_RX_EQ_BAND_2_B, 0xf145 }, { WM8996_DSP2_RX_EQ_BAND_2_C, 0xb75 }, { WM8996_DSP2_RX_EQ_BAND_2_PG, 0x1c5 }, { WM8996_DSP2_RX_EQ_BAND_3_A, 0x1c58 }, { WM8996_DSP2_RX_EQ_BAND_3_B, 0xf373 }, { WM8996_DSP2_RX_EQ_BAND_3_C, 0xa54 }, { WM8996_DSP2_RX_EQ_BAND_3_PG, 0x558 }, { WM8996_DSP2_RX_EQ_BAND_4_A, 0x168e }, { WM8996_DSP2_RX_EQ_BAND_4_B, 0xf829 }, { WM8996_DSP2_RX_EQ_BAND_4_C, 0x7ad }, { WM8996_DSP2_RX_EQ_BAND_4_PG, 0x1103 }, { WM8996_DSP2_RX_EQ_BAND_5_A, 0x564 }, { WM8996_DSP2_RX_EQ_BAND_5_B, 0x559 }, { WM8996_DSP2_RX_EQ_BAND_5_PG, 0x4000 }, { WM8996_DAC1_MIXER_VOLUMES, 0x0 }, { WM8996_DAC1_LEFT_MIXER_ROUTING, 0x0 }, { WM8996_DAC1_RIGHT_MIXER_ROUTING, 0x0 }, { WM8996_DAC2_MIXER_VOLUMES, 0x0 }, { WM8996_DAC2_LEFT_MIXER_ROUTING, 0x0 }, { WM8996_DAC2_RIGHT_MIXER_ROUTING, 0x0 }, { WM8996_DSP1_TX_LEFT_MIXER_ROUTING, 0x0 }, { WM8996_DSP1_TX_RIGHT_MIXER_ROUTING, 0x0 }, { WM8996_DSP2_TX_LEFT_MIXER_ROUTING, 0x0 }, { WM8996_DSP2_TX_RIGHT_MIXER_ROUTING, 0x0 }, { WM8996_DSP_TX_MIXER_SELECT, 0x0 }, { WM8996_DAC_SOFTMUTE, 0x0 }, { WM8996_OVERSAMPLING, 0xd }, { WM8996_SIDETONE, 0x1040 }, { WM8996_GPIO_1, 0xa101 }, { WM8996_GPIO_2, 0xa101 }, { WM8996_GPIO_3, 0xa101 }, { WM8996_GPIO_4, 0xa101 }, { WM8996_GPIO_5, 0xa101 }, { WM8996_PULL_CONTROL_1, 0x0 }, { WM8996_PULL_CONTROL_2, 0x140 }, { WM8996_INTERRUPT_STATUS_1_MASK, 0x1f }, { WM8996_INTERRUPT_STATUS_2_MASK, 0x1ecf }, { WM8996_LEFT_PDM_SPEAKER, 0x0 }, { WM8996_RIGHT_PDM_SPEAKER, 0x1 }, { WM8996_PDM_SPEAKER_MUTE_SEQUENCE, 0x69 }, { WM8996_PDM_SPEAKER_VOLUME, 0x66 }, }; static const DECLARE_TLV_DB_SCALE(inpga_tlv, 0, 100, 0); static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0); static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); static const DECLARE_TLV_DB_SCALE(out_digital_tlv, -1200, 150, 0); static const DECLARE_TLV_DB_SCALE(out_tlv, -900, 75, 0); static const DECLARE_TLV_DB_SCALE(spk_tlv, -900, 150, 0); static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); static const DECLARE_TLV_DB_SCALE(threedstereo_tlv, -1600, 183, 1); static const char *sidetone_hpf_text[] = { "2.9kHz", "1.5kHz", "735Hz", "403Hz", "196Hz", "98Hz", "49Hz" }; static SOC_ENUM_SINGLE_DECL(sidetone_hpf, WM8996_SIDETONE, 7, sidetone_hpf_text); static const char *hpf_mode_text[] = { "HiFi", "Custom", "Voice" }; static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_mode, WM8996_DSP1_TX_FILTERS, 3, hpf_mode_text); static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_mode, WM8996_DSP2_TX_FILTERS, 3, hpf_mode_text); static const char *hpf_cutoff_text[] = { "50Hz", "75Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz" }; static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_cutoff, WM8996_DSP1_TX_FILTERS, 0, hpf_cutoff_text); static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_cutoff, WM8996_DSP2_TX_FILTERS, 0, hpf_cutoff_text); static void wm8996_set_retune_mobile(struct snd_soc_component *component, int block) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct wm8996_pdata *pdata = &wm8996->pdata; int base, best, best_val, save, i, cfg, iface; if (!wm8996->num_retune_mobile_texts) return; switch (block) { case 0: base = WM8996_DSP1_RX_EQ_GAINS_1; if (snd_soc_component_read(component, WM8996_POWER_MANAGEMENT_8) & WM8996_DSP1RX_SRC) iface = 1; else iface = 0; break; case 1: base = WM8996_DSP1_RX_EQ_GAINS_2; if (snd_soc_component_read(component, WM8996_POWER_MANAGEMENT_8) & WM8996_DSP2RX_SRC) iface = 1; else iface = 0; break; default: return; } /* Find the version of the currently selected configuration * with the nearest sample rate. */ cfg = wm8996->retune_mobile_cfg[block]; best = 0; best_val = INT_MAX; for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { if (strcmp(pdata->retune_mobile_cfgs[i].name, wm8996->retune_mobile_texts[cfg]) == 0 && abs(pdata->retune_mobile_cfgs[i].rate - wm8996->rx_rate[iface]) < best_val) { best = i; best_val = abs(pdata->retune_mobile_cfgs[i].rate - wm8996->rx_rate[iface]); } } dev_dbg(component->dev, "ReTune Mobile %d %s/%dHz for %dHz sample rate\n", block, pdata->retune_mobile_cfgs[best].name, pdata->retune_mobile_cfgs[best].rate, wm8996->rx_rate[iface]); /* The EQ will be disabled while reconfiguring it, remember the * current configuration. */ save = snd_soc_component_read(component, base); save &= WM8996_DSP1RX_EQ_ENA; for (i = 0; i < ARRAY_SIZE(pdata->retune_mobile_cfgs[best].regs); i++) snd_soc_component_update_bits(component, base + i, 0xffff, pdata->retune_mobile_cfgs[best].regs[i]); snd_soc_component_update_bits(component, base, WM8996_DSP1RX_EQ_ENA, save); } /* Icky as hell but saves code duplication */ static int wm8996_get_retune_mobile_block(const char *name) { if (strcmp(name, "DSP1 EQ Mode") == 0) return 0; if (strcmp(name, "DSP2 EQ Mode") == 0) return 1; return -EINVAL; } static int wm8996_put_retune_mobile_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct wm8996_pdata *pdata = &wm8996->pdata; int block = wm8996_get_retune_mobile_block(kcontrol->id.name); int value = ucontrol->value.enumerated.item[0]; if (block < 0) return block; if (value >= pdata->num_retune_mobile_cfgs) return -EINVAL; wm8996->retune_mobile_cfg[block] = value; wm8996_set_retune_mobile(component, block); return 0; } static int wm8996_get_retune_mobile_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int block = wm8996_get_retune_mobile_block(kcontrol->id.name); if (block < 0) return block; ucontrol->value.enumerated.item[0] = wm8996->retune_mobile_cfg[block]; return 0; } static const struct snd_kcontrol_new wm8996_snd_controls[] = { SOC_DOUBLE_R_TLV("Capture Volume", WM8996_LEFT_LINE_INPUT_VOLUME, WM8996_RIGHT_LINE_INPUT_VOLUME, 0, 31, 0, inpga_tlv), SOC_DOUBLE_R("Capture ZC Switch", WM8996_LEFT_LINE_INPUT_VOLUME, WM8996_RIGHT_LINE_INPUT_VOLUME, 5, 1, 0), SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8996_DAC1_MIXER_VOLUMES, 0, 5, 24, 0, sidetone_tlv), SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8996_DAC2_MIXER_VOLUMES, 0, 5, 24, 0, sidetone_tlv), SOC_SINGLE("Sidetone LPF Switch", WM8996_SIDETONE, 12, 1, 0), SOC_ENUM("Sidetone HPF Cut-off", sidetone_hpf), SOC_SINGLE("Sidetone HPF Switch", WM8996_SIDETONE, 6, 1, 0), SOC_DOUBLE_R_TLV("DSP1 Capture Volume", WM8996_DSP1_TX_LEFT_VOLUME, WM8996_DSP1_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("DSP2 Capture Volume", WM8996_DSP2_TX_LEFT_VOLUME, WM8996_DSP2_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv), SOC_SINGLE("DSP1 Capture Notch Filter Switch", WM8996_DSP1_TX_FILTERS, 13, 1, 0), SOC_DOUBLE("DSP1 Capture HPF Switch", WM8996_DSP1_TX_FILTERS, 12, 11, 1, 0), SOC_ENUM("DSP1 Capture HPF Mode", dsp1tx_hpf_mode), SOC_ENUM("DSP1 Capture HPF Cutoff", dsp1tx_hpf_cutoff), SOC_SINGLE("DSP2 Capture Notch Filter Switch", WM8996_DSP2_TX_FILTERS, 13, 1, 0), SOC_DOUBLE("DSP2 Capture HPF Switch", WM8996_DSP2_TX_FILTERS, 12, 11, 1, 0), SOC_ENUM("DSP2 Capture HPF Mode", dsp2tx_hpf_mode), SOC_ENUM("DSP2 Capture HPF Cutoff", dsp2tx_hpf_cutoff), SOC_DOUBLE_R_TLV("DSP1 Playback Volume", WM8996_DSP1_RX_LEFT_VOLUME, WM8996_DSP1_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv), SOC_SINGLE("DSP1 Playback Switch", WM8996_DSP1_RX_FILTERS_1, 9, 1, 1), SOC_DOUBLE_R_TLV("DSP2 Playback Volume", WM8996_DSP2_RX_LEFT_VOLUME, WM8996_DSP2_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv), SOC_SINGLE("DSP2 Playback Switch", WM8996_DSP2_RX_FILTERS_1, 9, 1, 1), SOC_DOUBLE_R_TLV("DAC1 Volume", WM8996_DAC1_LEFT_VOLUME, WM8996_DAC1_RIGHT_VOLUME, 1, 112, 0, digital_tlv), SOC_DOUBLE_R("DAC1 Switch", WM8996_DAC1_LEFT_VOLUME, WM8996_DAC1_RIGHT_VOLUME, 9, 1, 1), SOC_DOUBLE_R_TLV("DAC2 Volume", WM8996_DAC2_LEFT_VOLUME, WM8996_DAC2_RIGHT_VOLUME, 1, 112, 0, digital_tlv), SOC_DOUBLE_R("DAC2 Switch", WM8996_DAC2_LEFT_VOLUME, WM8996_DAC2_RIGHT_VOLUME, 9, 1, 1), SOC_SINGLE("Speaker High Performance Switch", WM8996_OVERSAMPLING, 3, 1, 0), SOC_SINGLE("DMIC High Performance Switch", WM8996_OVERSAMPLING, 2, 1, 0), SOC_SINGLE("ADC High Performance Switch", WM8996_OVERSAMPLING, 1, 1, 0), SOC_SINGLE("DAC High Performance Switch", WM8996_OVERSAMPLING, 0, 1, 0), SOC_SINGLE("DAC Soft Mute Switch", WM8996_DAC_SOFTMUTE, 1, 1, 0), SOC_SINGLE("DAC Slow Soft Mute Switch", WM8996_DAC_SOFTMUTE, 0, 1, 0), SOC_SINGLE("DSP1 3D Stereo Switch", WM8996_DSP1_RX_FILTERS_2, 8, 1, 0), SOC_SINGLE("DSP2 3D Stereo Switch", WM8996_DSP2_RX_FILTERS_2, 8, 1, 0), SOC_SINGLE_TLV("DSP1 3D Stereo Volume", WM8996_DSP1_RX_FILTERS_2, 10, 15, 0, threedstereo_tlv), SOC_SINGLE_TLV("DSP2 3D Stereo Volume", WM8996_DSP2_RX_FILTERS_2, 10, 15, 0, threedstereo_tlv), SOC_DOUBLE_TLV("Digital Output 1 Volume", WM8996_DAC1_HPOUT1_VOLUME, 0, 4, 8, 0, out_digital_tlv), SOC_DOUBLE_TLV("Digital Output 2 Volume", WM8996_DAC2_HPOUT2_VOLUME, 0, 4, 8, 0, out_digital_tlv), SOC_DOUBLE_R_TLV("Output 1 Volume", WM8996_OUTPUT1_LEFT_VOLUME, WM8996_OUTPUT1_RIGHT_VOLUME, 0, 12, 0, out_tlv), SOC_DOUBLE_R("Output 1 ZC Switch", WM8996_OUTPUT1_LEFT_VOLUME, WM8996_OUTPUT1_RIGHT_VOLUME, 7, 1, 0), SOC_DOUBLE_R_TLV("Output 2 Volume", WM8996_OUTPUT2_LEFT_VOLUME, WM8996_OUTPUT2_RIGHT_VOLUME, 0, 12, 0, out_tlv), SOC_DOUBLE_R("Output 2 ZC Switch", WM8996_OUTPUT2_LEFT_VOLUME, WM8996_OUTPUT2_RIGHT_VOLUME, 7, 1, 0), SOC_DOUBLE_TLV("Speaker Volume", WM8996_PDM_SPEAKER_VOLUME, 0, 4, 8, 0, spk_tlv), SOC_DOUBLE_R("Speaker Switch", WM8996_LEFT_PDM_SPEAKER, WM8996_RIGHT_PDM_SPEAKER, 3, 1, 1), SOC_DOUBLE_R("Speaker ZC Switch", WM8996_LEFT_PDM_SPEAKER, WM8996_RIGHT_PDM_SPEAKER, 2, 1, 0), SOC_SINGLE("DSP1 EQ Switch", WM8996_DSP1_RX_EQ_GAINS_1, 0, 1, 0), SOC_SINGLE("DSP2 EQ Switch", WM8996_DSP2_RX_EQ_GAINS_1, 0, 1, 0), SOC_SINGLE("DSP1 DRC TXL Switch", WM8996_DSP1_DRC_1, 0, 1, 0), SOC_SINGLE("DSP1 DRC TXR Switch", WM8996_DSP1_DRC_1, 1, 1, 0), SOC_SINGLE("DSP1 DRC RX Switch", WM8996_DSP1_DRC_1, 2, 1, 0), SND_SOC_BYTES_MASK("DSP1 DRC", WM8996_DSP1_DRC_1, 5, WM8996_DSP1RX_DRC_ENA | WM8996_DSP1TXL_DRC_ENA | WM8996_DSP1TXR_DRC_ENA), SOC_SINGLE("DSP2 DRC TXL Switch", WM8996_DSP2_DRC_1, 0, 1, 0), SOC_SINGLE("DSP2 DRC TXR Switch", WM8996_DSP2_DRC_1, 1, 1, 0), SOC_SINGLE("DSP2 DRC RX Switch", WM8996_DSP2_DRC_1, 2, 1, 0), SND_SOC_BYTES_MASK("DSP2 DRC", WM8996_DSP2_DRC_1, 5, WM8996_DSP2RX_DRC_ENA | WM8996_DSP2TXL_DRC_ENA | WM8996_DSP2TXR_DRC_ENA), }; static const struct snd_kcontrol_new wm8996_eq_controls[] = { SOC_SINGLE_TLV("DSP1 EQ B1 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 11, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP1 EQ B2 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 6, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP1 EQ B3 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 1, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP1 EQ B4 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 11, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP1 EQ B5 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 6, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP2 EQ B1 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 11, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP2 EQ B2 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 6, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP2 EQ B3 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 1, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP2 EQ B4 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 11, 31, 0, eq_tlv), SOC_SINGLE_TLV("DSP2 EQ B5 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 6, 31, 0, eq_tlv), }; static void wm8996_bg_enable(struct snd_soc_component *component) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); wm8996->bg_ena++; if (wm8996->bg_ena == 1) { snd_soc_component_update_bits(component, WM8996_POWER_MANAGEMENT_1, WM8996_BG_ENA, WM8996_BG_ENA); msleep(2); } } static void wm8996_bg_disable(struct snd_soc_component *component) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); wm8996->bg_ena--; if (!wm8996->bg_ena) snd_soc_component_update_bits(component, WM8996_POWER_MANAGEMENT_1, WM8996_BG_ENA, 0); } static int bg_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); int ret = 0; switch (event) { case SND_SOC_DAPM_PRE_PMU: wm8996_bg_enable(component); break; case SND_SOC_DAPM_POST_PMD: wm8996_bg_disable(component); break; default: WARN(1, "Invalid event %d\n", event); ret = -EINVAL; } return ret; } static int cp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { switch (event) { case SND_SOC_DAPM_POST_PMU: msleep(5); break; default: WARN(1, "Invalid event %d\n", event); } return 0; } static int rmv_short_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 wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); /* Record which outputs we enabled */ switch (event) { case SND_SOC_DAPM_PRE_PMD: wm8996->hpout_pending &= ~w->shift; break; case SND_SOC_DAPM_PRE_PMU: wm8996->hpout_pending |= w->shift; break; default: WARN(1, "Invalid event %d\n", event); return -EINVAL; } return 0; } static void wait_for_dc_servo(struct snd_soc_component *component, u16 mask) { struct i2c_client *i2c = to_i2c_client(component->dev); struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int ret; unsigned long time_left = 200; snd_soc_component_write(component, WM8996_DC_SERVO_2, mask); /* Use the interrupt if possible */ do { if (i2c->irq) { time_left = wait_for_completion_timeout(&wm8996->dcs_done, msecs_to_jiffies(200)); if (time_left == 0) dev_err(component->dev, "DC servo timed out\n"); } else { msleep(1); time_left--; } ret = snd_soc_component_read(component, WM8996_DC_SERVO_2); dev_dbg(component->dev, "DC servo state: %x\n", ret); } while (time_left && ret & mask); if (time_left == 0) dev_err(component->dev, "DC servo timed out for %x\n", mask); else dev_dbg(component->dev, "DC servo complete for %x\n", mask); } static void wm8996_seq_notifier(struct snd_soc_component *component, enum snd_soc_dapm_type event, int subseq) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); u16 val, mask; /* Complete any pending DC servo starts */ if (wm8996->dcs_pending) { dev_dbg(component->dev, "Starting DC servo for %x\n", wm8996->dcs_pending); /* Trigger a startup sequence */ wait_for_dc_servo(component, wm8996->dcs_pending << WM8996_DCS_TRIG_STARTUP_0_SHIFT); wm8996->dcs_pending = 0; } if (wm8996->hpout_pending != wm8996->hpout_ena) { dev_dbg(component->dev, "Applying RMV_SHORTs %x->%x\n", wm8996->hpout_ena, wm8996->hpout_pending); val = 0; mask = 0; if (wm8996->hpout_pending & HPOUT1L) { val |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP; mask |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP; } else { mask |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP | WM8996_HPOUT1L_DLY; } if (wm8996->hpout_pending & HPOUT1R) { val |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP; mask |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP; } else { mask |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP | WM8996_HPOUT1R_DLY; } snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1, mask, val); val = 0; mask = 0; if (wm8996->hpout_pending & HPOUT2L) { val |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP; mask |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP; } else { mask |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP | WM8996_HPOUT2L_DLY; } if (wm8996->hpout_pending & HPOUT2R) { val |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP; mask |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP; } else { mask |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP | WM8996_HPOUT2R_DLY; } snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_2, mask, val); wm8996->hpout_ena = wm8996->hpout_pending; } } static int dcs_start(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 wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); switch (event) { case SND_SOC_DAPM_POST_PMU: wm8996->dcs_pending |= 1 << w->shift; break; default: WARN(1, "Invalid event %d\n", event); return -EINVAL; } return 0; } static const char *sidetone_text[] = { "IN1", "IN2", }; static SOC_ENUM_SINGLE_DECL(left_sidetone_enum, WM8996_SIDETONE, 0, sidetone_text); static const struct snd_kcontrol_new left_sidetone = SOC_DAPM_ENUM("Left Sidetone", left_sidetone_enum); static SOC_ENUM_SINGLE_DECL(right_sidetone_enum, WM8996_SIDETONE, 1, sidetone_text); static const struct snd_kcontrol_new right_sidetone = SOC_DAPM_ENUM("Right Sidetone", right_sidetone_enum); static const char *spk_text[] = { "DAC1L", "DAC1R", "DAC2L", "DAC2R" }; static SOC_ENUM_SINGLE_DECL(spkl_enum, WM8996_LEFT_PDM_SPEAKER, 0, spk_text); static const struct snd_kcontrol_new spkl_mux = SOC_DAPM_ENUM("SPKL", spkl_enum); static SOC_ENUM_SINGLE_DECL(spkr_enum, WM8996_RIGHT_PDM_SPEAKER, 0, spk_text); static const struct snd_kcontrol_new spkr_mux = SOC_DAPM_ENUM("SPKR", spkr_enum); static const char *dsp1rx_text[] = { "AIF1", "AIF2" }; static SOC_ENUM_SINGLE_DECL(dsp1rx_enum, WM8996_POWER_MANAGEMENT_8, 0, dsp1rx_text); static const struct snd_kcontrol_new dsp1rx = SOC_DAPM_ENUM("DSP1RX", dsp1rx_enum); static const char *dsp2rx_text[] = { "AIF2", "AIF1" }; static SOC_ENUM_SINGLE_DECL(dsp2rx_enum, WM8996_POWER_MANAGEMENT_8, 4, dsp2rx_text); static const struct snd_kcontrol_new dsp2rx = SOC_DAPM_ENUM("DSP2RX", dsp2rx_enum); static const char *aif2tx_text[] = { "DSP2", "DSP1", "AIF1" }; static SOC_ENUM_SINGLE_DECL(aif2tx_enum, WM8996_POWER_MANAGEMENT_8, 6, aif2tx_text); static const struct snd_kcontrol_new aif2tx = SOC_DAPM_ENUM("AIF2TX", aif2tx_enum); static const char *inmux_text[] = { "ADC", "DMIC1", "DMIC2" }; static SOC_ENUM_SINGLE_DECL(in1_enum, WM8996_POWER_MANAGEMENT_7, 0, inmux_text); static const struct snd_kcontrol_new in1_mux = SOC_DAPM_ENUM("IN1 Mux", in1_enum); static SOC_ENUM_SINGLE_DECL(in2_enum, WM8996_POWER_MANAGEMENT_7, 4, inmux_text); static const struct snd_kcontrol_new in2_mux = SOC_DAPM_ENUM("IN2 Mux", in2_enum); static const struct snd_kcontrol_new dac2r_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dac2l_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dac1r_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dac1l_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dsp1txl[] = { SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dsp1txr[] = { SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dsp2txl[] = { SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dsp2txr[] = { SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_soc_dapm_widget wm8996_dapm_widgets[] = { SND_SOC_DAPM_INPUT("IN1LN"), SND_SOC_DAPM_INPUT("IN1LP"), SND_SOC_DAPM_INPUT("IN1RN"), SND_SOC_DAPM_INPUT("IN1RP"), SND_SOC_DAPM_INPUT("IN2LN"), SND_SOC_DAPM_INPUT("IN2LP"), SND_SOC_DAPM_INPUT("IN2RN"), SND_SOC_DAPM_INPUT("IN2RP"), SND_SOC_DAPM_INPUT("DMIC1DAT"), SND_SOC_DAPM_INPUT("DMIC2DAT"), SND_SOC_DAPM_REGULATOR_SUPPLY("CPVDD", 20, 0), SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, WM8996_AIF_CLOCKING_1, 0, 0, NULL, 0), SND_SOC_DAPM_SUPPLY_S("SYSDSPCLK", 2, WM8996_CLOCKING_1, 1, 0, NULL, 0), SND_SOC_DAPM_SUPPLY_S("AIFCLK", 2, WM8996_CLOCKING_1, 2, 0, NULL, 0), SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8996_CHARGE_PUMP_1, 15, 0, cp_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_SUPPLY("Bandgap", SND_SOC_NOPM, 0, 0, bg_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY("LDO2", WM8996_POWER_MANAGEMENT_2, 1, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("MICB1 Audio", WM8996_MICBIAS_1, 4, 1, NULL, 0), SND_SOC_DAPM_SUPPLY("MICB2 Audio", WM8996_MICBIAS_2, 4, 1, NULL, 0), SND_SOC_DAPM_MICBIAS("MICB2", WM8996_POWER_MANAGEMENT_1, 9, 0), SND_SOC_DAPM_MICBIAS("MICB1", WM8996_POWER_MANAGEMENT_1, 8, 0), SND_SOC_DAPM_PGA("IN1L PGA", WM8996_POWER_MANAGEMENT_2, 5, 0, NULL, 0), SND_SOC_DAPM_PGA("IN1R PGA", WM8996_POWER_MANAGEMENT_2, 4, 0, NULL, 0), SND_SOC_DAPM_MUX("IN1L Mux", WM8996_POWER_MANAGEMENT_7, 2, 0, &in1_mux), SND_SOC_DAPM_MUX("IN1R Mux", WM8996_POWER_MANAGEMENT_7, 3, 0, &in1_mux), SND_SOC_DAPM_MUX("IN2L Mux", WM8996_POWER_MANAGEMENT_7, 6, 0, &in2_mux), SND_SOC_DAPM_MUX("IN2R Mux", WM8996_POWER_MANAGEMENT_7, 7, 0, &in2_mux), SND_SOC_DAPM_SUPPLY("DMIC2", WM8996_POWER_MANAGEMENT_7, 9, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("DMIC1", WM8996_POWER_MANAGEMENT_7, 8, 0, NULL, 0), SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8996_POWER_MANAGEMENT_3, 5, 0), SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8996_POWER_MANAGEMENT_3, 4, 0), SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8996_POWER_MANAGEMENT_3, 3, 0), SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8996_POWER_MANAGEMENT_3, 2, 0), SND_SOC_DAPM_ADC("ADCL", NULL, WM8996_POWER_MANAGEMENT_3, 1, 0), SND_SOC_DAPM_ADC("ADCR", NULL, WM8996_POWER_MANAGEMENT_3, 0, 0), SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &left_sidetone), SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &right_sidetone), SND_SOC_DAPM_AIF_IN("DSP2RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 11, 0), SND_SOC_DAPM_AIF_IN("DSP2RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 10, 0), SND_SOC_DAPM_AIF_IN("DSP1RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 9, 0), SND_SOC_DAPM_AIF_IN("DSP1RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 8, 0), SND_SOC_DAPM_MIXER("DSP2TXL", WM8996_POWER_MANAGEMENT_5, 11, 0, dsp2txl, ARRAY_SIZE(dsp2txl)), SND_SOC_DAPM_MIXER("DSP2TXR", WM8996_POWER_MANAGEMENT_5, 10, 0, dsp2txr, ARRAY_SIZE(dsp2txr)), SND_SOC_DAPM_MIXER("DSP1TXL", WM8996_POWER_MANAGEMENT_5, 9, 0, dsp1txl, ARRAY_SIZE(dsp1txl)), SND_SOC_DAPM_MIXER("DSP1TXR", WM8996_POWER_MANAGEMENT_5, 8, 0, dsp1txr, ARRAY_SIZE(dsp1txr)), SND_SOC_DAPM_MIXER("DAC2L Mixer", SND_SOC_NOPM, 0, 0, dac2l_mix, ARRAY_SIZE(dac2l_mix)), SND_SOC_DAPM_MIXER("DAC2R Mixer", SND_SOC_NOPM, 0, 0, dac2r_mix, ARRAY_SIZE(dac2r_mix)), SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix, ARRAY_SIZE(dac1l_mix)), SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix, ARRAY_SIZE(dac1r_mix)), SND_SOC_DAPM_DAC("DAC2L", NULL, WM8996_POWER_MANAGEMENT_5, 3, 0), SND_SOC_DAPM_DAC("DAC2R", NULL, WM8996_POWER_MANAGEMENT_5, 2, 0), SND_SOC_DAPM_DAC("DAC1L", NULL, WM8996_POWER_MANAGEMENT_5, 1, 0), SND_SOC_DAPM_DAC("DAC1R", NULL, WM8996_POWER_MANAGEMENT_5, 0, 0), SND_SOC_DAPM_AIF_IN("AIF2RX1", NULL, 0, WM8996_POWER_MANAGEMENT_4, 9, 0), SND_SOC_DAPM_AIF_IN("AIF2RX0", NULL, 1, WM8996_POWER_MANAGEMENT_4, 8, 0), SND_SOC_DAPM_AIF_OUT("AIF2TX1", NULL, 0, WM8996_POWER_MANAGEMENT_6, 9, 0), SND_SOC_DAPM_AIF_OUT("AIF2TX0", NULL, 1, WM8996_POWER_MANAGEMENT_6, 8, 0), SND_SOC_DAPM_AIF_IN("AIF1RX5", NULL, 5, WM8996_POWER_MANAGEMENT_4, 5, 0), SND_SOC_DAPM_AIF_IN("AIF1RX4", NULL, 4, WM8996_POWER_MANAGEMENT_4, 4, 0), SND_SOC_DAPM_AIF_IN("AIF1RX3", NULL, 3, WM8996_POWER_MANAGEMENT_4, 3, 0), SND_SOC_DAPM_AIF_IN("AIF1RX2", NULL, 2, WM8996_POWER_MANAGEMENT_4, 2, 0), SND_SOC_DAPM_AIF_IN("AIF1RX1", NULL, 1, WM8996_POWER_MANAGEMENT_4, 1, 0), SND_SOC_DAPM_AIF_IN("AIF1RX0", NULL, 0, WM8996_POWER_MANAGEMENT_4, 0, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX5", NULL, 5, WM8996_POWER_MANAGEMENT_6, 5, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX4", NULL, 4, WM8996_POWER_MANAGEMENT_6, 4, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX3", NULL, 3, WM8996_POWER_MANAGEMENT_6, 3, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX2", NULL, 2, WM8996_POWER_MANAGEMENT_6, 2, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX1", NULL, 1, WM8996_POWER_MANAGEMENT_6, 1, 0), SND_SOC_DAPM_AIF_OUT("AIF1TX0", NULL, 0, WM8996_POWER_MANAGEMENT_6, 0, 0), /* We route as stereo pairs so define some dummy widgets to squash * things down for now. RXA = 0,1, RXB = 2,3 and so on */ SND_SOC_DAPM_PGA("AIF1RXA", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("AIF1RXB", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("AIF1RXC", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("AIF2RX", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("DSP2TX", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_MUX("DSP1RX", SND_SOC_NOPM, 0, 0, &dsp1rx), SND_SOC_DAPM_MUX("DSP2RX", SND_SOC_NOPM, 0, 0, &dsp2rx), SND_SOC_DAPM_MUX("AIF2TX", SND_SOC_NOPM, 0, 0, &aif2tx), SND_SOC_DAPM_MUX("SPKL", SND_SOC_NOPM, 0, 0, &spkl_mux), SND_SOC_DAPM_MUX("SPKR", SND_SOC_NOPM, 0, 0, &spkr_mux), SND_SOC_DAPM_PGA("SPKL PGA", WM8996_LEFT_PDM_SPEAKER, 4, 0, NULL, 0), SND_SOC_DAPM_PGA("SPKR PGA", WM8996_RIGHT_PDM_SPEAKER, 4, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT2L PGA", 0, WM8996_POWER_MANAGEMENT_1, 7, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT2L_DLY", 1, WM8996_ANALOGUE_HP_2, 5, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT2L_DCS", 2, WM8996_DC_SERVO_1, 2, 0, dcs_start, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_S("HPOUT2L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2L, 0, rmv_short_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_S("HPOUT2R PGA", 0, WM8996_POWER_MANAGEMENT_1, 6, 0,NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT2R_DLY", 1, WM8996_ANALOGUE_HP_2, 1, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT2R_DCS", 2, WM8996_DC_SERVO_1, 3, 0, dcs_start, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_S("HPOUT2R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2R, 0, rmv_short_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_S("HPOUT1L PGA", 0, WM8996_POWER_MANAGEMENT_1, 5, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT1L_DLY", 1, WM8996_ANALOGUE_HP_1, 5, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT1L_DCS", 2, WM8996_DC_SERVO_1, 0, 0, dcs_start, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_S("HPOUT1L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1L, 0, rmv_short_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA_S("HPOUT1R PGA", 0, WM8996_POWER_MANAGEMENT_1, 4, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT1R_DLY", 1, WM8996_ANALOGUE_HP_1, 1, 0, NULL, 0), SND_SOC_DAPM_PGA_S("HPOUT1R_DCS", 2, WM8996_DC_SERVO_1, 1, 0, dcs_start, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_S("HPOUT1R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1R, 0, rmv_short_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_OUTPUT("HPOUT1L"), SND_SOC_DAPM_OUTPUT("HPOUT1R"), SND_SOC_DAPM_OUTPUT("HPOUT2L"), SND_SOC_DAPM_OUTPUT("HPOUT2R"), SND_SOC_DAPM_OUTPUT("SPKDAT"), }; static const struct snd_soc_dapm_route wm8996_dapm_routes[] = { { "AIFCLK", NULL, "SYSCLK" }, { "SYSDSPCLK", NULL, "SYSCLK" }, { "Charge Pump", NULL, "SYSCLK" }, { "Charge Pump", NULL, "CPVDD" }, { "MICB1", NULL, "LDO2" }, { "MICB1", NULL, "MICB1 Audio" }, { "MICB1", NULL, "Bandgap" }, { "MICB2", NULL, "LDO2" }, { "MICB2", NULL, "MICB2 Audio" }, { "MICB2", NULL, "Bandgap" }, { "AIF1RX0", NULL, "AIF1 Playback" }, { "AIF1RX1", NULL, "AIF1 Playback" }, { "AIF1RX2", NULL, "AIF1 Playback" }, { "AIF1RX3", NULL, "AIF1 Playback" }, { "AIF1RX4", NULL, "AIF1 Playback" }, { "AIF1RX5", NULL, "AIF1 Playback" }, { "AIF2RX0", NULL, "AIF2 Playback" }, { "AIF2RX1", NULL, "AIF2 Playback" }, { "AIF1 Capture", NULL, "AIF1TX0" }, { "AIF1 Capture", NULL, "AIF1TX1" }, { "AIF1 Capture", NULL, "AIF1TX2" }, { "AIF1 Capture", NULL, "AIF1TX3" }, { "AIF1 Capture", NULL, "AIF1TX4" }, { "AIF1 Capture", NULL, "AIF1TX5" }, { "AIF2 Capture", NULL, "AIF2TX0" }, { "AIF2 Capture", NULL, "AIF2TX1" }, { "IN1L PGA", NULL, "IN2LN" }, { "IN1L PGA", NULL, "IN2LP" }, { "IN1L PGA", NULL, "IN1LN" }, { "IN1L PGA", NULL, "IN1LP" }, { "IN1L PGA", NULL, "Bandgap" }, { "IN1R PGA", NULL, "IN2RN" }, { "IN1R PGA", NULL, "IN2RP" }, { "IN1R PGA", NULL, "IN1RN" }, { "IN1R PGA", NULL, "IN1RP" }, { "IN1R PGA", NULL, "Bandgap" }, { "ADCL", NULL, "IN1L PGA" }, { "ADCR", NULL, "IN1R PGA" }, { "DMIC1L", NULL, "DMIC1DAT" }, { "DMIC1R", NULL, "DMIC1DAT" }, { "DMIC2L", NULL, "DMIC2DAT" }, { "DMIC2R", NULL, "DMIC2DAT" }, { "DMIC2L", NULL, "DMIC2" }, { "DMIC2R", NULL, "DMIC2" }, { "DMIC1L", NULL, "DMIC1" }, { "DMIC1R", NULL, "DMIC1" }, { "IN1L Mux", "ADC", "ADCL" }, { "IN1L Mux", "DMIC1", "DMIC1L" }, { "IN1L Mux", "DMIC2", "DMIC2L" }, { "IN1R Mux", "ADC", "ADCR" }, { "IN1R Mux", "DMIC1", "DMIC1R" }, { "IN1R Mux", "DMIC2", "DMIC2R" }, { "IN2L Mux", "ADC", "ADCL" }, { "IN2L Mux", "DMIC1", "DMIC1L" }, { "IN2L Mux", "DMIC2", "DMIC2L" }, { "IN2R Mux", "ADC", "ADCR" }, { "IN2R Mux", "DMIC1", "DMIC1R" }, { "IN2R Mux", "DMIC2", "DMIC2R" }, { "Left Sidetone", "IN1", "IN1L Mux" }, { "Left Sidetone", "IN2", "IN2L Mux" }, { "Right Sidetone", "IN1", "IN1R Mux" }, { "Right Sidetone", "IN2", "IN2R Mux" }, { "DSP1TXL", "IN1 Switch", "IN1L Mux" }, { "DSP1TXR", "IN1 Switch", "IN1R Mux" }, { "DSP2TXL", "IN1 Switch", "IN2L Mux" }, { "DSP2TXR", "IN1 Switch", "IN2R Mux" }, { "AIF1TX0", NULL, "DSP1TXL" }, { "AIF1TX1", NULL, "DSP1TXR" }, { "AIF1TX2", NULL, "DSP2TXL" }, { "AIF1TX3", NULL, "DSP2TXR" }, { "AIF1TX4", NULL, "AIF2RX0" }, { "AIF1TX5", NULL, "AIF2RX1" }, { "AIF1RX0", NULL, "AIFCLK" }, { "AIF1RX1", NULL, "AIFCLK" }, { "AIF1RX2", NULL, "AIFCLK" }, { "AIF1RX3", NULL, "AIFCLK" }, { "AIF1RX4", NULL, "AIFCLK" }, { "AIF1RX5", NULL, "AIFCLK" }, { "AIF2RX0", NULL, "AIFCLK" }, { "AIF2RX1", NULL, "AIFCLK" }, { "AIF1TX0", NULL, "AIFCLK" }, { "AIF1TX1", NULL, "AIFCLK" }, { "AIF1TX2", NULL, "AIFCLK" }, { "AIF1TX3", NULL, "AIFCLK" }, { "AIF1TX4", NULL, "AIFCLK" }, { "AIF1TX5", NULL, "AIFCLK" }, { "AIF2TX0", NULL, "AIFCLK" }, { "AIF2TX1", NULL, "AIFCLK" }, { "DSP1RXL", NULL, "SYSDSPCLK" }, { "DSP1RXR", NULL, "SYSDSPCLK" }, { "DSP2RXL", NULL, "SYSDSPCLK" }, { "DSP2RXR", NULL, "SYSDSPCLK" }, { "DSP1TXL", NULL, "SYSDSPCLK" }, { "DSP1TXR", NULL, "SYSDSPCLK" }, { "DSP2TXL", NULL, "SYSDSPCLK" }, { "DSP2TXR", NULL, "SYSDSPCLK" }, { "AIF1RXA", NULL, "AIF1RX0" }, { "AIF1RXA", NULL, "AIF1RX1" }, { "AIF1RXB", NULL, "AIF1RX2" }, { "AIF1RXB", NULL, "AIF1RX3" }, { "AIF1RXC", NULL, "AIF1RX4" }, { "AIF1RXC", NULL, "AIF1RX5" }, { "AIF2RX", NULL, "AIF2RX0" }, { "AIF2RX", NULL, "AIF2RX1" }, { "AIF2TX", "DSP2", "DSP2TX" }, { "AIF2TX", "DSP1", "DSP1RX" }, { "AIF2TX", "AIF1", "AIF1RXC" }, { "DSP1RXL", NULL, "DSP1RX" }, { "DSP1RXR", NULL, "DSP1RX" }, { "DSP2RXL", NULL, "DSP2RX" }, { "DSP2RXR", NULL, "DSP2RX" }, { "DSP2TX", NULL, "DSP2TXL" }, { "DSP2TX", NULL, "DSP2TXR" }, { "DSP1RX", "AIF1", "AIF1RXA" }, { "DSP1RX", "AIF2", "AIF2RX" }, { "DSP2RX", "AIF1", "AIF1RXB" }, { "DSP2RX", "AIF2", "AIF2RX" }, { "DAC2L Mixer", "DSP2 Switch", "DSP2RXL" }, { "DAC2L Mixer", "DSP1 Switch", "DSP1RXL" }, { "DAC2L Mixer", "Right Sidetone Switch", "Right Sidetone" }, { "DAC2L Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC2R Mixer", "DSP2 Switch", "DSP2RXR" }, { "DAC2R Mixer", "DSP1 Switch", "DSP1RXR" }, { "DAC2R Mixer", "Right Sidetone Switch", "Right Sidetone" }, { "DAC2R Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC1L Mixer", "DSP2 Switch", "DSP2RXL" }, { "DAC1L Mixer", "DSP1 Switch", "DSP1RXL" }, { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" }, { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC1R Mixer", "DSP2 Switch", "DSP2RXR" }, { "DAC1R Mixer", "DSP1 Switch", "DSP1RXR" }, { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" }, { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC1L", NULL, "DAC1L Mixer" }, { "DAC1R", NULL, "DAC1R Mixer" }, { "DAC2L", NULL, "DAC2L Mixer" }, { "DAC2R", NULL, "DAC2R Mixer" }, { "HPOUT2L PGA", NULL, "Charge Pump" }, { "HPOUT2L PGA", NULL, "Bandgap" }, { "HPOUT2L PGA", NULL, "DAC2L" }, { "HPOUT2L_DLY", NULL, "HPOUT2L PGA" }, { "HPOUT2L_DCS", NULL, "HPOUT2L_DLY" }, { "HPOUT2L_RMV_SHORT", NULL, "HPOUT2L_DCS" }, { "HPOUT2R PGA", NULL, "Charge Pump" }, { "HPOUT2R PGA", NULL, "Bandgap" }, { "HPOUT2R PGA", NULL, "DAC2R" }, { "HPOUT2R_DLY", NULL, "HPOUT2R PGA" }, { "HPOUT2R_DCS", NULL, "HPOUT2R_DLY" }, { "HPOUT2R_RMV_SHORT", NULL, "HPOUT2R_DCS" }, { "HPOUT1L PGA", NULL, "Charge Pump" }, { "HPOUT1L PGA", NULL, "Bandgap" }, { "HPOUT1L PGA", NULL, "DAC1L" }, { "HPOUT1L_DLY", NULL, "HPOUT1L PGA" }, { "HPOUT1L_DCS", NULL, "HPOUT1L_DLY" }, { "HPOUT1L_RMV_SHORT", NULL, "HPOUT1L_DCS" }, { "HPOUT1R PGA", NULL, "Charge Pump" }, { "HPOUT1R PGA", NULL, "Bandgap" }, { "HPOUT1R PGA", NULL, "DAC1R" }, { "HPOUT1R_DLY", NULL, "HPOUT1R PGA" }, { "HPOUT1R_DCS", NULL, "HPOUT1R_DLY" }, { "HPOUT1R_RMV_SHORT", NULL, "HPOUT1R_DCS" }, { "HPOUT2L", NULL, "HPOUT2L_RMV_SHORT" }, { "HPOUT2R", NULL, "HPOUT2R_RMV_SHORT" }, { "HPOUT1L", NULL, "HPOUT1L_RMV_SHORT" }, { "HPOUT1R", NULL, "HPOUT1R_RMV_SHORT" }, { "SPKL", "DAC1L", "DAC1L" }, { "SPKL", "DAC1R", "DAC1R" }, { "SPKL", "DAC2L", "DAC2L" }, { "SPKL", "DAC2R", "DAC2R" }, { "SPKR", "DAC1L", "DAC1L" }, { "SPKR", "DAC1R", "DAC1R" }, { "SPKR", "DAC2L", "DAC2L" }, { "SPKR", "DAC2R", "DAC2R" }, { "SPKL PGA", NULL, "SPKL" }, { "SPKR PGA", NULL, "SPKR" }, { "SPKDAT", NULL, "SPKL PGA" }, { "SPKDAT", NULL, "SPKR PGA" }, }; static bool wm8996_readable_register(struct device *dev, unsigned int reg) { /* Due to the sparseness of the register map the compiler * output from an explicit switch statement ends up being much * more efficient than a table. */ switch (reg) { case WM8996_SOFTWARE_RESET: case WM8996_POWER_MANAGEMENT_1: case WM8996_POWER_MANAGEMENT_2: case WM8996_POWER_MANAGEMENT_3: case WM8996_POWER_MANAGEMENT_4: case WM8996_POWER_MANAGEMENT_5: case WM8996_POWER_MANAGEMENT_6: case WM8996_POWER_MANAGEMENT_7: case WM8996_POWER_MANAGEMENT_8: case WM8996_LEFT_LINE_INPUT_VOLUME: case WM8996_RIGHT_LINE_INPUT_VOLUME: case WM8996_LINE_INPUT_CONTROL: case WM8996_DAC1_HPOUT1_VOLUME: case WM8996_DAC2_HPOUT2_VOLUME: case WM8996_DAC1_LEFT_VOLUME: case WM8996_DAC1_RIGHT_VOLUME: case WM8996_DAC2_LEFT_VOLUME: case WM8996_DAC2_RIGHT_VOLUME: case WM8996_OUTPUT1_LEFT_VOLUME: case WM8996_OUTPUT1_RIGHT_VOLUME: case WM8996_OUTPUT2_LEFT_VOLUME: case WM8996_OUTPUT2_RIGHT_VOLUME: case WM8996_MICBIAS_1: case WM8996_MICBIAS_2: case WM8996_LDO_1: case WM8996_LDO_2: case WM8996_ACCESSORY_DETECT_MODE_1: case WM8996_ACCESSORY_DETECT_MODE_2: case WM8996_HEADPHONE_DETECT_1: case WM8996_HEADPHONE_DETECT_2: case WM8996_MIC_DETECT_1: case WM8996_MIC_DETECT_2: case WM8996_MIC_DETECT_3: case WM8996_CHARGE_PUMP_1: case WM8996_CHARGE_PUMP_2: case WM8996_DC_SERVO_1: case WM8996_DC_SERVO_2: case WM8996_DC_SERVO_3: case WM8996_DC_SERVO_5: case WM8996_DC_SERVO_6: case WM8996_DC_SERVO_7: case WM8996_DC_SERVO_READBACK_0: case WM8996_ANALOGUE_HP_1: case WM8996_ANALOGUE_HP_2: case WM8996_CHIP_REVISION: case WM8996_CONTROL_INTERFACE_1: case WM8996_WRITE_SEQUENCER_CTRL_1: case WM8996_WRITE_SEQUENCER_CTRL_2: case WM8996_AIF_CLOCKING_1: case WM8996_AIF_CLOCKING_2: case WM8996_CLOCKING_1: case WM8996_CLOCKING_2: case WM8996_AIF_RATE: case WM8996_FLL_CONTROL_1: case WM8996_FLL_CONTROL_2: case WM8996_FLL_CONTROL_3: case WM8996_FLL_CONTROL_4: case WM8996_FLL_CONTROL_5: case WM8996_FLL_CONTROL_6: case WM8996_FLL_EFS_1: case WM8996_FLL_EFS_2: case WM8996_AIF1_CONTROL: case WM8996_AIF1_BCLK: case WM8996_AIF1_TX_LRCLK_1: case WM8996_AIF1_TX_LRCLK_2: case WM8996_AIF1_RX_LRCLK_1: case WM8996_AIF1_RX_LRCLK_2: case WM8996_AIF1TX_DATA_CONFIGURATION_1: case WM8996_AIF1TX_DATA_CONFIGURATION_2: case WM8996_AIF1RX_DATA_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_0_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_1_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_2_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_3_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_4_CONFIGURATION: case WM8996_AIF1TX_CHANNEL_5_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_0_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_1_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_2_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_3_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_4_CONFIGURATION: case WM8996_AIF1RX_CHANNEL_5_CONFIGURATION: case WM8996_AIF1RX_MONO_CONFIGURATION: case WM8996_AIF1TX_TEST: case WM8996_AIF2_CONTROL: case WM8996_AIF2_BCLK: case WM8996_AIF2_TX_LRCLK_1: case WM8996_AIF2_TX_LRCLK_2: case WM8996_AIF2_RX_LRCLK_1: case WM8996_AIF2_RX_LRCLK_2: case WM8996_AIF2TX_DATA_CONFIGURATION_1: case WM8996_AIF2TX_DATA_CONFIGURATION_2: case WM8996_AIF2RX_DATA_CONFIGURATION: case WM8996_AIF2TX_CHANNEL_0_CONFIGURATION: case WM8996_AIF2TX_CHANNEL_1_CONFIGURATION: case WM8996_AIF2RX_CHANNEL_0_CONFIGURATION: case WM8996_AIF2RX_CHANNEL_1_CONFIGURATION: case WM8996_AIF2RX_MONO_CONFIGURATION: case WM8996_AIF2TX_TEST: case WM8996_DSP1_TX_LEFT_VOLUME: case WM8996_DSP1_TX_RIGHT_VOLUME: case WM8996_DSP1_RX_LEFT_VOLUME: case WM8996_DSP1_RX_RIGHT_VOLUME: case WM8996_DSP1_TX_FILTERS: case WM8996_DSP1_RX_FILTERS_1: case WM8996_DSP1_RX_FILTERS_2: case WM8996_DSP1_DRC_1: case WM8996_DSP1_DRC_2: case WM8996_DSP1_DRC_3: case WM8996_DSP1_DRC_4: case WM8996_DSP1_DRC_5: case WM8996_DSP1_RX_EQ_GAINS_1: case WM8996_DSP1_RX_EQ_GAINS_2: case WM8996_DSP1_RX_EQ_BAND_1_A: case WM8996_DSP1_RX_EQ_BAND_1_B: case WM8996_DSP1_RX_EQ_BAND_1_PG: case WM8996_DSP1_RX_EQ_BAND_2_A: case WM8996_DSP1_RX_EQ_BAND_2_B: case WM8996_DSP1_RX_EQ_BAND_2_C: case WM8996_DSP1_RX_EQ_BAND_2_PG: case WM8996_DSP1_RX_EQ_BAND_3_A: case WM8996_DSP1_RX_EQ_BAND_3_B: case WM8996_DSP1_RX_EQ_BAND_3_C: case WM8996_DSP1_RX_EQ_BAND_3_PG: case WM8996_DSP1_RX_EQ_BAND_4_A: case WM8996_DSP1_RX_EQ_BAND_4_B: case WM8996_DSP1_RX_EQ_BAND_4_C: case WM8996_DSP1_RX_EQ_BAND_4_PG: case WM8996_DSP1_RX_EQ_BAND_5_A: case WM8996_DSP1_RX_EQ_BAND_5_B: case WM8996_DSP1_RX_EQ_BAND_5_PG: case WM8996_DSP2_TX_LEFT_VOLUME: case WM8996_DSP2_TX_RIGHT_VOLUME: case WM8996_DSP2_RX_LEFT_VOLUME: case WM8996_DSP2_RX_RIGHT_VOLUME: case WM8996_DSP2_TX_FILTERS: case WM8996_DSP2_RX_FILTERS_1: case WM8996_DSP2_RX_FILTERS_2: case WM8996_DSP2_DRC_1: case WM8996_DSP2_DRC_2: case WM8996_DSP2_DRC_3: case WM8996_DSP2_DRC_4: case WM8996_DSP2_DRC_5: case WM8996_DSP2_RX_EQ_GAINS_1: case WM8996_DSP2_RX_EQ_GAINS_2: case WM8996_DSP2_RX_EQ_BAND_1_A: case WM8996_DSP2_RX_EQ_BAND_1_B: case WM8996_DSP2_RX_EQ_BAND_1_PG: case WM8996_DSP2_RX_EQ_BAND_2_A: case WM8996_DSP2_RX_EQ_BAND_2_B: case WM8996_DSP2_RX_EQ_BAND_2_C: case WM8996_DSP2_RX_EQ_BAND_2_PG: case WM8996_DSP2_RX_EQ_BAND_3_A: case WM8996_DSP2_RX_EQ_BAND_3_B: case WM8996_DSP2_RX_EQ_BAND_3_C: case WM8996_DSP2_RX_EQ_BAND_3_PG: case WM8996_DSP2_RX_EQ_BAND_4_A: case WM8996_DSP2_RX_EQ_BAND_4_B: case WM8996_DSP2_RX_EQ_BAND_4_C: case WM8996_DSP2_RX_EQ_BAND_4_PG: case WM8996_DSP2_RX_EQ_BAND_5_A: case WM8996_DSP2_RX_EQ_BAND_5_B: case WM8996_DSP2_RX_EQ_BAND_5_PG: case WM8996_DAC1_MIXER_VOLUMES: case WM8996_DAC1_LEFT_MIXER_ROUTING: case WM8996_DAC1_RIGHT_MIXER_ROUTING: case WM8996_DAC2_MIXER_VOLUMES: case WM8996_DAC2_LEFT_MIXER_ROUTING: case WM8996_DAC2_RIGHT_MIXER_ROUTING: case WM8996_DSP1_TX_LEFT_MIXER_ROUTING: case WM8996_DSP1_TX_RIGHT_MIXER_ROUTING: case WM8996_DSP2_TX_LEFT_MIXER_ROUTING: case WM8996_DSP2_TX_RIGHT_MIXER_ROUTING: case WM8996_DSP_TX_MIXER_SELECT: case WM8996_DAC_SOFTMUTE: case WM8996_OVERSAMPLING: case WM8996_SIDETONE: case WM8996_GPIO_1: case WM8996_GPIO_2: case WM8996_GPIO_3: case WM8996_GPIO_4: case WM8996_GPIO_5: case WM8996_PULL_CONTROL_1: case WM8996_PULL_CONTROL_2: case WM8996_INTERRUPT_STATUS_1: case WM8996_INTERRUPT_STATUS_2: case WM8996_INTERRUPT_RAW_STATUS_2: case WM8996_INTERRUPT_STATUS_1_MASK: case WM8996_INTERRUPT_STATUS_2_MASK: case WM8996_INTERRUPT_CONTROL: case WM8996_LEFT_PDM_SPEAKER: case WM8996_RIGHT_PDM_SPEAKER: case WM8996_PDM_SPEAKER_MUTE_SEQUENCE: case WM8996_PDM_SPEAKER_VOLUME: return true; default: return false; } } static bool wm8996_volatile_register(struct device *dev, unsigned int reg) { switch (reg) { case WM8996_SOFTWARE_RESET: case WM8996_CHIP_REVISION: case WM8996_LDO_1: case WM8996_LDO_2: case WM8996_INTERRUPT_STATUS_1: case WM8996_INTERRUPT_STATUS_2: case WM8996_INTERRUPT_RAW_STATUS_2: case WM8996_DC_SERVO_READBACK_0: case WM8996_DC_SERVO_2: case WM8996_DC_SERVO_6: case WM8996_DC_SERVO_7: case WM8996_FLL_CONTROL_6: case WM8996_MIC_DETECT_3: case WM8996_HEADPHONE_DETECT_1: case WM8996_HEADPHONE_DETECT_2: return true; default: return false; } } static const int bclk_divs[] = { 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96 }; static void wm8996_update_bclk(struct snd_soc_component *component) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int aif, best, cur_val, bclk_rate, bclk_reg, i; /* Don't bother if we're in a low frequency idle mode that * can't support audio. */ if (wm8996->sysclk < 64000) return; for (aif = 0; aif < WM8996_AIFS; aif++) { switch (aif) { case 0: bclk_reg = WM8996_AIF1_BCLK; break; case 1: bclk_reg = WM8996_AIF2_BCLK; break; } bclk_rate = wm8996->bclk_rate[aif]; /* Pick a divisor for BCLK as close as we can get to ideal */ best = 0; for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { cur_val = (wm8996->sysclk / bclk_divs[i]) - bclk_rate; if (cur_val < 0) /* BCLK table is sorted */ break; best = i; } bclk_rate = wm8996->sysclk / bclk_divs[best]; dev_dbg(component->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n", bclk_divs[best], bclk_rate); snd_soc_component_update_bits(component, bclk_reg, WM8996_AIF1_BCLK_DIV_MASK, best); } } static int wm8996_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int ret; switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: /* Put the MICBIASes into regulating mode */ snd_soc_component_update_bits(component, WM8996_MICBIAS_1, WM8996_MICB1_MODE, 0); snd_soc_component_update_bits(component, WM8996_MICBIAS_2, WM8996_MICB2_MODE, 0); break; case SND_SOC_BIAS_STANDBY: if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); if (ret != 0) { dev_err(component->dev, "Failed to enable supplies: %d\n", ret); return ret; } if (wm8996->ldo_ena) { gpiod_set_value_cansleep(wm8996->ldo_ena, 1); msleep(5); } regcache_cache_only(wm8996->regmap, false); regcache_sync(wm8996->regmap); } /* Bypass the MICBIASes for lowest power */ snd_soc_component_update_bits(component, WM8996_MICBIAS_1, WM8996_MICB1_MODE, WM8996_MICB1_MODE); snd_soc_component_update_bits(component, WM8996_MICBIAS_2, WM8996_MICB2_MODE, WM8996_MICB2_MODE); break; case SND_SOC_BIAS_OFF: regcache_cache_only(wm8996->regmap, true); if (wm8996->ldo_ena) { gpiod_set_value_cansleep(wm8996->ldo_ena, 0); regcache_cache_only(wm8996->regmap, true); } regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); break; } return 0; } static int wm8996_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_component *component = dai->component; int aifctrl = 0; int bclk = 0; int lrclk_tx = 0; int lrclk_rx = 0; int aifctrl_reg, bclk_reg, lrclk_tx_reg, lrclk_rx_reg; switch (dai->id) { case 0: aifctrl_reg = WM8996_AIF1_CONTROL; bclk_reg = WM8996_AIF1_BCLK; lrclk_tx_reg = WM8996_AIF1_TX_LRCLK_2; lrclk_rx_reg = WM8996_AIF1_RX_LRCLK_2; break; case 1: aifctrl_reg = WM8996_AIF2_CONTROL; bclk_reg = WM8996_AIF2_BCLK; lrclk_tx_reg = WM8996_AIF2_TX_LRCLK_2; lrclk_rx_reg = WM8996_AIF2_RX_LRCLK_2; break; default: WARN(1, "Invalid dai id %d\n", dai->id); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_NF: bclk |= WM8996_AIF1_BCLK_INV; break; case SND_SOC_DAIFMT_NB_IF: lrclk_tx |= WM8996_AIF1TX_LRCLK_INV; lrclk_rx |= WM8996_AIF1RX_LRCLK_INV; break; case SND_SOC_DAIFMT_IB_IF: bclk |= WM8996_AIF1_BCLK_INV; lrclk_tx |= WM8996_AIF1TX_LRCLK_INV; lrclk_rx |= WM8996_AIF1RX_LRCLK_INV; break; } switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBC_CFC: break; case SND_SOC_DAIFMT_CBC_CFP: lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR; lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR; break; case SND_SOC_DAIFMT_CBP_CFC: bclk |= WM8996_AIF1_BCLK_MSTR; break; case SND_SOC_DAIFMT_CBP_CFP: bclk |= WM8996_AIF1_BCLK_MSTR; lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR; lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR; break; default: return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_DSP_A: break; case SND_SOC_DAIFMT_DSP_B: aifctrl |= 1; break; case SND_SOC_DAIFMT_I2S: aifctrl |= 2; break; case SND_SOC_DAIFMT_LEFT_J: aifctrl |= 3; break; default: return -EINVAL; } snd_soc_component_update_bits(component, aifctrl_reg, WM8996_AIF1_FMT_MASK, aifctrl snd_soc_component_update_bits(component, bclk_reg, WM8996_AIF1_BCLK_INV | WM8996_AIF1_BCLK_MSTR, bclk); snd_soc_component_update_bits(component, lrclk_tx_reg, WM8996_AIF1TX_LRCLK_INV | WM8996_AIF1TX_LRCLK_MSTR, lrclk_tx); snd_soc_component_update_bits(component, lrclk_rx_reg, WM8996_AIF1RX_LRCLK_INV | WM8996_AIF1RX_LRCLK_MSTR, lrclk_rx); return 0; } static const int dsp_divs[] = { 48000, 32000, 16000, 8000 }; static int wm8996_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 wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int bits, i, bclk_rate, best; int aifdata = 0; int lrclk = 0; int dsp = 0; int aifdata_reg, lrclk_reg, dsp_shift; switch (dai->id) { case 0: if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK || (snd_soc_component_read(component, WM8996_GPIO_1)) & WM8996_GP1_FN_MASK) { aifdata_reg = WM8996_AIF1RX_DATA_CONFIGURATION; lrclk_reg = WM8996_AIF1_RX_LRCLK_1; } else { aifdata_reg = WM8996_AIF1TX_DATA_CONFIGURATION_1; lrclk_reg = WM8996_AIF1_TX_LRCLK_1; } dsp_shift = 0; break; case 1: if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK || (snd_soc_component_read(component, WM8996_GPIO_2)) & WM8996_GP2_FN_MASK) { aifdata_reg = WM8996_AIF2RX_DATA_CONFIGURATION; lrclk_reg = WM8996_AIF2_RX_LRCLK_1; } else { aifdata_reg = WM8996_AIF2TX_DATA_CONFIGURATION_1; lrclk_reg = WM8996_AIF2_TX_LRCLK_1; } dsp_shift = WM8996_DSP2_DIV_SHIFT; break; default: WARN(1, "Invalid dai id %d\n", dai->id); return -EINVAL; } bclk_rate = snd_soc_params_to_bclk(params); if (bclk_rate < 0) { dev_err(component->dev, "Unsupported BCLK rate: %d\n", bclk_rate); return bclk_rate; } wm8996->bclk_rate[dai->id] = bclk_rate; wm8996->rx_rate[dai->id] = params_rate(params); /* Needs looking at for TDM */ bits = params_width(params); if (bits < 0) return bits; aifdata |= (bits << WM8996_AIF1TX_WL_SHIFT) | bits; best = 0; for (i = 0; i < ARRAY_SIZE(dsp_divs); i++) { if (abs(dsp_divs[i] - params_rate(params)) < abs(dsp_divs[best] - params_rate(params))) best = i; } dsp |= i << dsp_shift; wm8996_update_bclk(component); lrclk = bclk_rate / params_rate(params); dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n", lrclk, bclk_rate / lrclk); snd_soc_component_update_bits(component, aifdata_reg, WM8996_AIF1TX_WL_MASK | WM8996_AIF1TX_SLOT_LEN_MASK, aifdata); snd_soc_component_update_bits(component, lrclk_reg, WM8996_AIF1RX_RATE_MASK, lrclk); snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_2, WM8996_DSP1_DIV_MASK << dsp_shift, dsp); return 0; } static int wm8996_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_component *component = dai->component; struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int lfclk = 0; int ratediv = 0; int sync = WM8996_REG_SYNC; int src; int old; if (freq == wm8996->sysclk && clk_id == wm8996->sysclk_src) return 0; /* Disable SYSCLK while we reconfigure */ old = snd_soc_component_read(component, WM8996_AIF_CLOCKING_1) & WM8996_SYSCLK_EN snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1, WM8996_SYSCLK_ENA, 0); switch (clk_id) { case WM8996_SYSCLK_MCLK1: wm8996->sysclk = freq; src = 0; break; case WM8996_SYSCLK_MCLK2: wm8996->sysclk = freq; src = 1; break; case WM8996_SYSCLK_FLL: wm8996->sysclk = freq; src = 2; break; default: dev_err(component->dev, "Unsupported clock source %d\n", clk_id); return -EINVAL; } switch (wm8996->sysclk) { case 5644800: case 6144000: snd_soc_component_update_bits(component, WM8996_AIF_RATE, WM8996_SYSCLK_RATE, 0); break; case 22579200: case 24576000: ratediv = WM8996_SYSCLK_DIV; wm8996->sysclk /= 2; fallthrough; case 11289600: case 12288000: snd_soc_component_update_bits(component, WM8996_AIF_RATE, WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE); break; case 32000: case 32768: lfclk = WM8996_LFCLK_ENA; sync = 0; break; default: dev_warn(component->dev, "Unsupported clock rate %dHz\n", wm8996->sysclk); return -EINVAL; } wm8996_update_bclk(component); snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1, WM8996_SYSCLK_SRC_MASK | WM8996_SYSCLK_DIV_MASK, src << WM8996_SYSCLK_SRC_SHIFT | ratediv); snd_soc_component_update_bits(component, WM8996_CLOCKING_1, WM8996_LFCLK_ENA, lfclk snd_soc_component_update_bits(component, WM8996_CONTROL_INTERFACE_1, WM8996_REG_SYNC, sync); snd_soc_component_update_bits(component, WM8996_AIF_CLOCKING_1, WM8996_SYSCLK_ENA, old); wm8996->sysclk_src = clk_id; return 0; } struct _fll_div { u16 fll_fratio; u16 fll_outdiv; u16 fll_refclk_div; u16 fll_loop_gain; u16 fll_ref_freq; u16 n; u16 theta; u16 lambda; }; static struct { unsigned int min; unsigned int max; u16 fll_fratio; int ratio; } fll_fratios[] = { { 0, 64000, 4, 16 }, { 64000, 128000, 3, 8 }, { 128000, 256000, 2, 4 }, { 256000, 1000000, 1, 2 }, { 1000000, 13500000, 0, 1 }, }; static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, unsigned int Fout) { unsigned int target; unsigned int div; unsigned int fratio, gcd_fll; int i; /* Fref must be <=13.5MHz */ div = 1; fll_div->fll_refclk_div = 0; while ((Fref / div) > 13500000) { div *= 2; fll_div->fll_refclk_div++; if (div > 8) { pr_err("Can't scale %dMHz input down to <=13.5MHz\n", Fref); return -EINVAL; } } pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout); /* Apply the division for our remaining calculations */ Fref /= div; if (Fref >= 3000000) fll_div->fll_loop_gain = 5; else fll_div->fll_loop_gain = 0; if (Fref >= 48000) fll_div->fll_ref_freq = 0; else fll_div->fll_ref_freq = 1; /* Fvco should be 90-100MHz; don't check the upper bound */ div = 2; while (Fout * div < 90000000) { div++; if (div > 64) { pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n", Fout); return -EINVAL; } } target = Fout * div; fll_div->fll_outdiv = div - 1; pr_debug("FLL Fvco=%dHz\n", target); /* Find an appropraite FLL_FRATIO and factor it out of the target */ for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) { if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) { fll_div->fll_fratio = fll_fratios[i].fll_fratio; fratio = fll_fratios[i].ratio; break; } } if (i == ARRAY_SIZE(fll_fratios)) { pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref); return -EINVAL; } fll_div->n = target / (fratio * Fref); if (target % Fref == 0) { fll_div->theta = 0; fll_div->lambda = 0; } else { gcd_fll = gcd(target, fratio * Fref); fll_div->theta = (target - (fll_div->n * fratio * Fref)) / gcd_fll; fll_div->lambda = (fratio * Fref) / gcd_fll; } pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n", fll_div->n, fll_div->theta, fll_div->lambda); pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n", fll_div->fll_fratio, fll_div->fll_outdiv, fll_div->fll_refclk_div); return 0; } static int wm8996_set_fll(struct snd_soc_component *component, int fll_id, int source, unsigned int Fref, unsigned int Fout) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct i2c_client *i2c = to_i2c_client(component->dev); struct _fll_div fll_div; unsigned long timeout, time_left; int ret, reg, retry; /* Any change? */ if (source == wm8996->fll_src && Fref == wm8996->fll_fref && Fout == wm8996->fll_fout) return 0; if (Fout == 0) { dev_dbg(component->dev, "FLL disabled\n"); wm8996->fll_fref = 0; wm8996->fll_fout = 0; snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_1, WM8996_FLL_ENA, 0); wm8996_bg_disable(component); return 0; } ret = fll_factors(&fll_div, Fref, Fout); if (ret != 0) return ret; switch (source) { case WM8996_FLL_MCLK1: reg = 0; break; case WM8996_FLL_MCLK2: reg = 1; break; case WM8996_FLL_DACLRCLK1: reg = 2; break; case WM8996_FLL_BCLK1: reg = 3; break; default: dev_err(component->dev, "Unknown FLL source %d\n", ret); return -EINVAL; } reg |= fll_div.fll_refclk_div << WM8996_FLL_REFCLK_DIV_SHIFT; reg |= fll_div.fll_ref_freq << WM8996_FLL_REF_FREQ_SHIFT; snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_5, WM8996_FLL_REFCLK_DIV_MASK | WM8996_FLL_REF_FREQ | WM8996_FLL_REFCLK_SRC_MASK, reg); reg = 0; if (fll_div.theta || fll_div.lambda) reg |= WM8996_FLL_EFS_ENA | (3 << WM8996_FLL_LFSR_SEL_SHIFT); else reg |= 1 << WM8996_FLL_LFSR_SEL_SHIFT; snd_soc_component_write(component, WM8996_FLL_EFS_2, reg); snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_2, WM8996_FLL_OUTDIV_MASK | WM8996_FLL_FRATIO_MASK, (fll_div.fll_outdiv << WM8996_FLL_OUTDIV_SHIFT) | (fll_div.fll_fratio)); snd_soc_component_write(component, WM8996_FLL_CONTROL_3, fll_div.theta); snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_4, WM8996_FLL_N_MASK | WM8996_FLL_LOOP_GAIN_MASK, (fll_div.n << WM8996_FLL_N_SHIFT) | fll_div.fll_loop_gain); snd_soc_component_write(component, WM8996_FLL_EFS_1, fll_div.lambda); /* Enable the bandgap if it's not already enabled */ ret = snd_soc_component_read(component, WM8996_FLL_CONTROL_1); if (!(ret & WM8996_FLL_ENA)) wm8996_bg_enable(component); /* Clear any pending completions (eg, from failed startups) */ try_wait_for_completion(&wm8996->fll_lock); snd_soc_component_update_bits(component, WM8996_FLL_CONTROL_1, WM8996_FLL_ENA, WM8996_FLL_ENA); /* The FLL supports live reconfiguration - kick that in case we were * already enabled. */ snd_soc_component_write(component, WM8996_FLL_CONTROL_6, WM8996_FLL_SWITCH_CLK); /* Wait for the FLL to lock, using the interrupt if possible */ if (Fref > 1000000) timeout = usecs_to_jiffies(300); else timeout = msecs_to_jiffies(2); /* Allow substantially longer if we've actually got the IRQ, poll * at a slightly higher rate if we don't. */ if (i2c->irq) timeout *= 10; else /* ensure timeout of atleast 1 jiffies */ timeout = (timeout/2) ? : 1; for (retry = 0; retry < 10; retry++) { time_left = wait_for_completion_timeout(&wm8996->fll_lock, timeout); if (time_left != 0) { WARN_ON(!i2c->irq); ret = 1; break; } ret = snd_soc_component_read(component, WM8996_INTERRUPT_RAW_STATUS_2); if (ret & WM8996_FLL_LOCK_STS) break; } if (retry == 10) { dev_err(component->dev, "Timed out waiting for FLL\n"); ret = -ETIMEDOUT; } dev_dbg(component->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout); wm8996->fll_fref = Fref; wm8996->fll_fout = Fout; wm8996->fll_src = source; return ret; } #ifdef CONFIG_GPIOLIB static int wm8996_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { struct wm8996_priv *wm8996 = gpiochip_get_data(chip); return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset, WM8996_GP1_LVL, !!value << WM8996_GP1_LVL_SHIFT); } static int wm8996_gpio_direction_out(struct gpio_chip *chip, unsigned offset, int value) { struct wm8996_priv *wm8996 = gpiochip_get_data(chip); int val; val = (1 << WM8996_GP1_FN_SHIFT) | (!!value << WM8996_GP1_LVL_SHIFT); return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset, WM8996_GP1_FN_MASK | WM8996_GP1_DIR | WM8996_GP1_LVL, val); } static int wm8996_gpio_get(struct gpio_chip *chip, unsigned offset) { struct wm8996_priv *wm8996 = gpiochip_get_data(chip); unsigned int reg; int ret; ret = regmap_read(wm8996->regmap, WM8996_GPIO_1 + offset, ®); if (ret < 0) return ret; return (reg & WM8996_GP1_LVL) != 0; } static int wm8996_gpio_direction_in(struct gpio_chip *chip, unsigned offset) { struct wm8996_priv *wm8996 = gpiochip_get_data(chip); return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset, WM8996_GP1_FN_MASK | WM8996_GP1_DIR, (1 << WM8996_GP1_FN_SHIFT) | (1 << WM8996_GP1_DIR_SHIFT)); } static const struct gpio_chip wm8996_template_chip = { .label = "wm8996", .owner = THIS_MODULE, .direction_output = wm8996_gpio_direction_out, .set = wm8996_gpio_set, .direction_input = wm8996_gpio_direction_in, .get = wm8996_gpio_get, .can_sleep = 1, .ngpio = 5, .base = -1, }; static void wm8996_init_gpio(struct wm8996_priv *wm8996) { int ret; wm8996->gpio_chip = wm8996_template_chip; wm8996->gpio_chip.parent = wm8996->dev; ret = gpiochip_add_data(&wm8996->gpio_chip, wm8996); if (ret != 0) dev_err(wm8996->dev, "Failed to add GPIOs: %d\n", ret); } static void wm8996_free_gpio(struct wm8996_priv *wm8996) { gpiochip_remove(&wm8996->gpio_chip); } #else static void wm8996_init_gpio(struct wm8996_priv *wm8996) { } static void wm8996_free_gpio(struct wm8996_priv *wm8996) { } #endif /** * wm8996_detect - Enable default WM8996 jack detection * @component: ASoC component * @jack: jack pointer * @polarity_cb: polarity callback * * The WM8996 has advanced accessory detection support for headsets. * This function provides a default implementation which integrates * the majority of this functionality with minimal user configuration. * * This will detect headset, headphone and short circuit button and * will also detect inverted microphone ground connections and update * the polarity of the connections. */ int wm8996_detect(struct snd_soc_component *component, struct snd_soc_jack *jack, wm8996_polarity_fn polarity_cb) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); wm8996->jack = jack; wm8996->detecting = true; wm8996->polarity_cb = polarity_cb; wm8996->jack_flips = 0; if (wm8996->polarity_cb) wm8996->polarity_cb(component, 0); /* Clear discarge to avoid noise during detection */ snd_soc_component_update_bits(component, WM8996_MICBIAS_1, WM8996_MICB1_DISCH, 0); snd_soc_component_update_bits(component, WM8996_MICBIAS_2, WM8996_MICB2_DISCH, 0); /* LDO2 powers the microphones, SYSCLK clocks detection */ snd_soc_dapm_mutex_lock(dapm); snd_soc_dapm_force_enable_pin_unlocked(dapm, "LDO2"); snd_soc_dapm_force_enable_pin_unlocked(dapm, "SYSCLK"); snd_soc_dapm_mutex_unlock(dapm); /* We start off just enabling microphone detection - even a * plain headphone will trigger detection. */ snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_ENA, WM8996_MICD_ENA); /* Slowest detection rate, gives debounce for initial detection */ snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_RATE_MASK, WM8996_MICD_RATE_MASK); /* Enable interrupts and we're off */ snd_soc_component_update_bits(component, WM8996_INTERRUPT_STATUS_2_MASK, WM8996_IM_MICD_EINT | WM8996_HP_DONE_EINT, 0); return 0; } EXPORT_SYMBOL_GPL(wm8996_detect); static void wm8996_hpdet_irq(struct snd_soc_component *component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int val, reg, report; /* Assume headphone in error conditions; we need to report * something or we stall our state machine. */ report = SND_JACK_HEADPHONE; reg = snd_soc_component_read(component, WM8996_HEADPHONE_DETECT_2); if (reg < 0) { dev_err(component->dev, "Failed to read HPDET status\n"); goto out; } if (!(reg & WM8996_HP_DONE)) { dev_err(component->dev, "Got HPDET IRQ but HPDET is busy\n"); goto out; } val = reg & WM8996_HP_LVL_MASK; dev_dbg(component->dev, "HPDET measured %d ohms\n", val); /* If we've got high enough impedence then report as line, * otherwise assume headphone. */ if (val >= 126) report = SND_JACK_LINEOUT; else report = SND_JACK_HEADPHONE; out: if (wm8996->jack_mic) report |= SND_JACK_MICROPHONE; snd_soc_jack_report(wm8996->jack, report, SND_JACK_LINEOUT | SND_JACK_HEADSET); wm8996->detecting = false; /* If the output isn't running re-clamp it */ if (!(snd_soc_component_read(component, WM8996_POWER_MANAGEMENT_1) & (WM8996_HPOUT1L_ENA | WM8996_HPOUT1R_RMV_SHORT))) snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1, WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1R_RMV_SHORT, 0); /* Go back to looking at the microphone */ snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_1, WM8996_JD_MODE_MASK, 0); snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_ENA, WM8996_MICD_ENA); snd_soc_dapm_disable_pin(dapm, "Bandgap"); snd_soc_dapm_sync(dapm); } static void wm8996_hpdet_start(struct snd_soc_component *component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); /* Unclamp the output, we can't measure while we're shorting it */ snd_soc_component_update_bits(component, WM8996_ANALOGUE_HP_1, WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1R_RMV_SHORT, WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1R_RMV_SHORT); /* We need bandgap for HPDET */ snd_soc_dapm_force_enable_pin(dapm, "Bandgap"); snd_soc_dapm_sync(dapm); /* Go into headphone detect left mode */ snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_ENA, 0); snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_1, WM8996_JD_MODE_MASK, 1); /* Trigger a measurement */ snd_soc_component_update_bits(component, WM8996_HEADPHONE_DETECT_1, WM8996_HP_POLL, WM8996_HP_POLL); } static void wm8996_report_headphone(struct snd_soc_component *component) { dev_dbg(component->dev, "Headphone detected\n"); wm8996_hpdet_start(component); /* Increase the detection rate a bit for responsiveness. */ snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_RATE_MASK | WM8996_MICD_BIAS_STARTTIME_MASK, 7 << WM8996_MICD_RATE_SHIFT | 7 << WM8996_MICD_BIAS_STARTTIME_SHIFT); } static void wm8996_micd(struct snd_soc_component *component) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int val, reg; val = snd_soc_component_read(component, WM8996_MIC_DETECT_3); dev_dbg(component->dev, "Microphone event: %x\n", val); if (!(val & WM8996_MICD_VALID)) { dev_warn(component->dev, "Microphone detection state invalid\n"); return; } /* No accessory, reset everything and report removal */ if (!(val & WM8996_MICD_STS)) { dev_dbg(component->dev, "Jack removal detected\n"); wm8996->jack_mic = false; wm8996->detecting = true; wm8996->jack_flips = 0; snd_soc_jack_report(wm8996->jack, 0, SND_JACK_LINEOUT | SND_JACK_HEADSET | SND_JACK_BTN_0); snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_RATE_MASK | WM8996_MICD_BIAS_STARTTIME_MASK, WM8996_MICD_RATE_MASK | 9 << WM8996_MICD_BIAS_STARTTIME_SHIFT); return; } /* If the measurement is very high we've got a microphone, * either we just detected one or if we already reported then * we've got a button release event. */ if (val & 0x400) { if (wm8996->detecting) { dev_dbg(component->dev, "Microphone detected\n"); wm8996->jack_mic = true; wm8996_hpdet_start(component); /* Increase poll rate to give better responsiveness * for buttons */ snd_soc_component_update_bits(component, WM8996_MIC_DETECT_1, WM8996_MICD_RATE_MASK | WM8996_MICD_BIAS_STARTTIME_MASK, 5 << WM8996_MICD_RATE_SHIFT | 7 << WM8996_MICD_BIAS_STARTTIME_SHIFT); } else { dev_dbg(component->dev, "Mic button up\n"); snd_soc_jack_report(wm8996->jack, 0, SND_JACK_BTN_0); } return; } /* If we detected a lower impedence during initial startup * then we probably have the wrong polarity, flip it. Don't * do this for the lowest impedences to speed up detection of * plain headphones. If both polarities report a low * impedence then give up and report headphones. */ if (wm8996->detecting && (val & 0x3f0)) { wm8996->jack_flips++; if (wm8996->jack_flips > 1) { wm8996_report_headphone(component); return; } reg = snd_soc_component_read(component, WM8996_ACCESSORY_DETECT_MODE_2); reg ^= WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC | WM8996_MICD_BIAS_SRC; snd_soc_component_update_bits(component, WM8996_ACCESSORY_DETECT_MODE_2, WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC | WM8996_MICD_BIAS_SRC, reg); if (wm8996->polarity_cb) wm8996->polarity_cb(component, (reg & WM8996_MICD_SRC) != 0); dev_dbg(component->dev, "Set microphone polarity to %d\n", (reg & WM8996_MICD_SRC) != 0); return; } /* Don't distinguish between buttons, just report any low * impedence as BTN_0. */ if (val & 0x3fc) { if (wm8996->jack_mic) { dev_dbg(component->dev, "Mic button detected\n"); snd_soc_jack_report(wm8996->jack, SND_JACK_BTN_0, SND_JACK_BTN_0); } else if (wm8996->detecting) { wm8996_report_headphone(component); } } } static irqreturn_t wm8996_irq(int irq, void *data) { struct snd_soc_component *component = data; struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); int irq_val; irq_val = snd_soc_component_read(component, WM8996_INTERRUPT_STATUS_2); if (irq_val < 0) { dev_err(component->dev, "Failed to read IRQ status: %d\n", irq_val); return IRQ_NONE; } irq_val &= ~snd_soc_component_read(component, WM8996_INTERRUPT_STATUS_2_MASK); if (!irq_val) return IRQ_NONE; snd_soc_component_write(component, WM8996_INTERRUPT_STATUS_2, irq_val); if (irq_val & (WM8996_DCS_DONE_01_EINT | WM8996_DCS_DONE_23_EINT)) { dev_dbg(component->dev, "DC servo IRQ\n"); complete(&wm8996->dcs_done); } if (irq_val & WM8996_FIFOS_ERR_EINT) dev_err(component->dev, "Digital core FIFO error\n"); if (irq_val & WM8996_FLL_LOCK_EINT) { dev_dbg(component->dev, "FLL locked\n"); complete(&wm8996->fll_lock); } if (irq_val & WM8996_MICD_EINT) wm8996_micd(component); if (irq_val & WM8996_HP_DONE_EINT) wm8996_hpdet_irq(component); return IRQ_HANDLED; } static irqreturn_t wm8996_edge_irq(int irq, void *data) { irqreturn_t ret = IRQ_NONE; irqreturn_t val; do { val = wm8996_irq(irq, data); if (val != IRQ_NONE) ret = val; } while (val != IRQ_NONE); return ret; } static void wm8996_retune_mobile_pdata(struct snd_soc_component *component) { struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct wm8996_pdata *pdata = &wm8996->pdata; struct snd_kcontrol_new controls[] = { SOC_ENUM_EXT("DSP1 EQ Mode", wm8996->retune_mobile_enum, wm8996_get_retune_mobile_enum, wm8996_put_retune_mobile_enum), SOC_ENUM_EXT("DSP2 EQ Mode", wm8996->retune_mobile_enum, wm8996_get_retune_mobile_enum, wm8996_put_retune_mobile_enum), }; int ret, i, j; const char **t; /* We need an array of texts for the enum API but the number * of texts is likely to be less than the number of * configurations due to the sample rate dependency of the * configurations. */ wm8996->num_retune_mobile_texts = 0; wm8996->retune_mobile_texts = NULL; for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) { for (j = 0; j < wm8996->num_retune_mobile_texts; j++) { if (strcmp(pdata->retune_mobile_cfgs[i].name, wm8996->retune_mobile_texts[j]) == 0) break; } if (j != wm8996->num_retune_mobile_texts) continue; /* Expand the array... */ t = krealloc(wm8996->retune_mobile_texts, sizeof(char *) * (wm8996->num_retune_mobile_texts + 1), GFP_KERNEL); if (t == NULL) continue; /* ...store the new entry... */ t[wm8996->num_retune_mobile_texts] = pdata->retune_mobile_cfgs[i].name; /* ...and remember the new version. */ wm8996->num_retune_mobile_texts++; wm8996->retune_mobile_texts = t; } dev_dbg(component->dev, "Allocated %d unique ReTune Mobile names\n", wm8996->num_retune_mobile_texts); wm8996->retune_mobile_enum.items = wm8996->num_retune_mobile_texts; wm8996->retune_mobile_enum.texts = wm8996->retune_mobile_texts; ret = snd_soc_add_component_controls(component, controls, ARRAY_SIZE(controls)); if (ret != 0) dev_err(component->dev, "Failed to add ReTune Mobile controls: %d\n", ret); } static const struct regmap_config wm8996_regmap = { .reg_bits = 16, .val_bits = 16, .max_register = WM8996_MAX_REGISTER, .reg_defaults = wm8996_reg, .num_reg_defaults = ARRAY_SIZE(wm8996_reg), .volatile_reg = wm8996_volatile_register, .readable_reg = wm8996_readable_register, .cache_type = REGCACHE_MAPLE, }; static int wm8996_probe(struct snd_soc_component *component) { int ret; struct wm8996_priv *wm8996 = snd_soc_component_get_drvdata(component); struct i2c_client *i2c = to_i2c_client(component->dev); int irq_flags; wm8996->component = component; init_completion(&wm8996->dcs_done); init_completion(&wm8996->fll_lock); if (wm8996->pdata.num_retune_mobile_cfgs) wm8996_retune_mobile_pdata(component); else snd_soc_add_component_controls(component, wm8996_eq_controls, ARRAY_SIZE(wm8996_eq_controls)); if (i2c->irq) { if (wm8996->pdata.irq_flags) irq_flags = wm8996->pdata.irq_flags; else irq_flags = IRQF_TRIGGER_LOW; irq_flags |= IRQF_ONESHOT; if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) ret = request_threaded_irq(i2c->irq, NULL, wm8996_edge_irq, irq_flags, "wm8996", component); else ret = request_threaded_irq(i2c->irq, NULL, wm8996_irq, irq_flags, "wm8996", component); if (ret == 0) { /* Unmask the interrupt */ snd_soc_component_update_bits(component, WM8996_INTERRUPT_CONTROL, WM8996_IM_IRQ, 0); /* Enable error reporting and DC servo status */ snd_soc_component_update_bits(component, WM8996_INTERRUPT_STATUS_2_MASK, WM8996_IM_DCS_DONE_23_EINT | WM8996_IM_DCS_DONE_01_EINT | WM8996_IM_FLL_LOCK_EINT | WM8996_IM_FIFOS_ERR_EINT, 0); } else { dev_err(component->dev, "Failed to request IRQ: %d\n", ret); return ret; } } return 0; } static void wm8996_remove(struct snd_soc_component *component) { struct i2c_client *i2c = to_i2c_client(component->dev); snd_soc_component_update_bits(component, WM8996_INTERRUPT_CONTROL, WM8996_IM_IRQ, WM8996_IM_IRQ); if (i2c->irq) free_irq(i2c->irq, component); } static const struct snd_soc_component_driver soc_component_dev_wm8996 = { .probe = wm8996_probe, .remove = wm8996_remove, .set_bias_level = wm8996_set_bias_level, .seq_notifier = wm8996_seq_notifier, .controls = wm8996_snd_controls, .num_controls = ARRAY_SIZE(wm8996_snd_controls), .dapm_widgets = wm8996_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8996_dapm_widgets), .dapm_routes = wm8996_dapm_routes, .num_dapm_routes = ARRAY_SIZE(wm8996_dapm_routes), .set_pll = wm8996_set_fll, .use_pmdown_time = 1, .endianness = 1, }; #define WM8996_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ SNDRV_PCM_RATE_48000) #define WM8996_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |\ SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dai_ops wm8996_dai_ops = { .set_fmt = wm8996_set_fmt, .hw_params = wm8996_hw_params, .set_sysclk = wm8996_set_sysclk, }; static struct snd_soc_dai_driver wm8996_dai[] = { { .name = "wm8996-aif1", .playback = { .stream_name = "AIF1 Playback", .channels_min = 1, .channels_max = 6, .rates = WM8996_RATES, .formats = WM8996_FORMATS, .sig_bits = 24, }, .capture = { .stream_name = "AIF1 Capture", .channels_min = 1, .channels_max = 6, .rates = WM8996_RATES, .formats = WM8996_FORMATS, .sig_bits = 24, }, .ops = &wm8996_dai_ops, }, { .name = "wm8996-aif2", .playback = { .stream_name = "AIF2 Playback", .channels_min = 1, .channels_max = 2, .rates = WM8996_RATES, .formats = WM8996_FORMATS, .sig_bits = 24, }, .capture = { .stream_name = "AIF2 Capture", .channels_min = 1, .channels_max = 2, .rates = WM8996_RATES, .formats = WM8996_FORMATS, .sig_bits = 24, }, .ops = &wm8996_dai_ops, }, }; static int wm8996_i2c_probe(struct i2c_client *i2c) { struct wm8996_priv *wm8996; int ret, i; unsigned int reg; wm8996 = devm_kzalloc(&i2c->dev, sizeof(struct wm8996_priv), GFP_KERNEL); if (wm8996 == NULL) return -ENOMEM; i2c_set_clientdata(i2c, wm8996); wm8996->dev = &i2c->dev; if (dev_get_platdata(&i2c->dev)) memcpy(&wm8996->pdata, dev_get_platdata(&i2c->dev), sizeof(wm8996->pdata)); wm8996->ldo_ena = devm_gpiod_get_optional(&i2c->dev, "wlf,ldo1ena", GPIOD_OUT_LOW); if (IS_ERR(wm8996->ldo_ena)) { ret = PTR_ERR(wm8996->ldo_ena); dev_err(&i2c->dev, "Failed to request LDO ENA GPIO: %d\n", ret); goto err; } gpiod_set_consumer_name(wm8996->ldo_ena, "WM8996 ENA"); for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) wm8996->supplies[i].supply = wm8996_supply_names[i]; ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8996->supplies), wm8996->supplies); if (ret != 0) { dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); goto err_gpio; } wm8996->disable_nb[0].notifier_call = wm8996_regulator_event_0; wm8996->disable_nb[1].notifier_call = wm8996_regulator_event_1; wm8996->disable_nb[2].notifier_call = wm8996_regulator_event_2; /* This should really be moved into the regulator core */ for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) { ret = devm_regulator_register_notifier( wm8996->supplies[i].consumer, &wm8996->disable_nb[i]); if (ret != 0) { dev_err(&i2c->dev, "Failed to register regulator notifier: %d\n", ret); } } ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); if (ret != 0) { dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); goto err_gpio; } if (wm8996->ldo_ena) { gpiod_set_value_cansleep(wm8996->ldo_ena, 1); msleep(5); } wm8996->regmap = devm_regmap_init_i2c(i2c, &wm8996_regmap); if (IS_ERR(wm8996->regmap)) { ret = PTR_ERR(wm8996->regmap); dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret); goto err_enable; } ret = regmap_read(wm8996->regmap, WM8996_SOFTWARE_RESET, ®); if (ret < 0) { dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret); goto err_regmap; } if (reg != 0x8915) { dev_err(&i2c->dev, "Device is not a WM8996, ID %x\n", reg); ret = -EINVAL; goto err_regmap; } ret = regmap_read(wm8996->regmap, WM8996_CHIP_REVISION, ®); if (ret < 0) { dev_err(&i2c->dev, "Failed to read device revision: %d\n", ret); goto err_regmap; } dev_info(&i2c->dev, "revision %c\n", (reg & WM8996_CHIP_REV_MASK) + 'A'); if (wm8996->ldo_ena) { gpiod_set_value_cansleep(wm8996->ldo_ena, 0); regcache_cache_only(wm8996->regmap, true); } else { ret = regmap_write(wm8996->regmap, WM8996_SOFTWARE_RESET, 0x8915); if (ret != 0) { dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret); goto err_regmap; } } regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); /* Apply platform data settings */ regmap_update_bits(wm8996->regmap, WM8996_LINE_INPUT_CONTROL, WM8996_INL_MODE_MASK | WM8996_INR_MODE_MASK, wm8996->pdata.inl_mode << WM8996_INL_MODE_SHIFT | wm8996->pdata.inr_mode); for (i = 0; i < ARRAY_SIZE(wm8996->pdata.gpio_default); i++) { if (!wm8996->pdata.gpio_default[i]) continue; regmap_write(wm8996->regmap, WM8996_GPIO_1 + i, wm8996->pdata.gpio_default[i] & 0xffff); } if (wm8996->pdata.spkmute_seq) regmap_update_bits(wm8996->regmap, WM8996_PDM_SPEAKER_MUTE_SEQUENCE, WM8996_SPK_MUTE_ENDIAN | WM8996_SPK_MUTE_SEQ1_MASK, wm8996->pdata.spkmute_seq); regmap_update_bits(wm8996->regmap, WM8996_ACCESSORY_DETECT_MODE_2, WM8996_MICD_BIAS_SRC | WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC, wm8996->pdata.micdet_def); /* Latch volume update bits */ regmap_update_bits(wm8996->regmap, WM8996_LEFT_LINE_INPUT_VOLUME, WM8996_IN1_VU, WM8996_IN1_VU); regmap_update_bits(wm8996->regmap, WM8996_RIGHT_LINE_INPUT_VOLUME, WM8996_IN1_VU, WM8996_IN1_VU); regmap_update_bits(wm8996->regmap, WM8996_DAC1_LEFT_VOLUME, WM8996_DAC1_VU, WM8996_DAC1_VU); regmap_update_bits(wm8996->regmap, WM8996_DAC1_RIGHT_VOLUME, WM8996_DAC1_VU, WM8996_DAC1_VU); regmap_update_bits(wm8996->regmap, WM8996_DAC2_LEFT_VOLUME, WM8996_DAC2_VU, WM8996_DAC2_VU); regmap_update_bits(wm8996->regmap, WM8996_DAC2_RIGHT_VOLUME, WM8996_DAC2_VU, WM8996_DAC2_VU); regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_LEFT_VOLUME, WM8996_DAC1_VU, WM8996_DAC1_VU); regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_RIGHT_VOLUME, WM8996_DAC1_VU, WM8996_DAC1_VU); regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_LEFT_VOLUME, WM8996_DAC2_VU, WM8996_DAC2_VU); regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_RIGHT_VOLUME, WM8996_DAC2_VU, WM8996_DAC2_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_LEFT_VOLUME, WM8996_DSP1TX_VU, WM8996_DSP1TX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_RIGHT_VOLUME, WM8996_DSP1TX_VU, WM8996_DSP1TX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_LEFT_VOLUME, WM8996_DSP2TX_VU, WM8996_DSP2TX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_RIGHT_VOLUME, WM8996_DSP2TX_VU, WM8996_DSP2TX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_LEFT_VOLUME, WM8996_DSP1RX_VU, WM8996_DSP1RX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_RIGHT_VOLUME, WM8996_DSP1RX_VU, WM8996_DSP1RX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_LEFT_VOLUME, WM8996_DSP2RX_VU, WM8996_DSP2RX_VU); regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_RIGHT_VOLUME, WM8996_DSP2RX_VU, WM8996_DSP2RX_VU); /* No support currently for the underclocked TDM modes and * pick a default TDM layout with each channel pair working with * slots 0 and 1. */ regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_0_CONFIGURATION, WM8996_AIF1RX_CHAN0_SLOTS_MASK | WM8996_AIF1RX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN0_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_1_CONFIGURATION, WM8996_AIF1RX_CHAN1_SLOTS_MASK | WM8996_AIF1RX_CHAN1_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN1_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_2_CONFIGURATION, WM8996_AIF1RX_CHAN2_SLOTS_MASK | WM8996_AIF1RX_CHAN2_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN2_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_3_CONFIGURATION, WM8996_AIF1RX_CHAN3_SLOTS_MASK | WM8996_AIF1RX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN3_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_4_CONFIGURATION, WM8996_AIF1RX_CHAN4_SLOTS_MASK | WM8996_AIF1RX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN4_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1RX_CHANNEL_5_CONFIGURATION, WM8996_AIF1RX_CHAN5_SLOTS_MASK | WM8996_AIF1RX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1RX_CHAN5_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF2RX_CHANNEL_0_CONFIGURATION, WM8996_AIF2RX_CHAN0_SLOTS_MASK | WM8996_AIF2RX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF2RX_CHAN0_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF2RX_CHANNEL_1_CONFIGURATION, WM8996_AIF2RX_CHAN1_SLOTS_MASK | WM8996_AIF2RX_CHAN1_START_SLOT_MASK, 1 << WM8996_AIF2RX_CHAN1_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_0_CONFIGURATION, WM8996_AIF1TX_CHAN0_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN0_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_1_CONFIGURATION, WM8996_AIF1TX_CHAN1_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_2_CONFIGURATION, WM8996_AIF1TX_CHAN2_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN2_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_3_CONFIGURATION, WM8996_AIF1TX_CHAN3_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN3_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_4_CONFIGURATION, WM8996_AIF1TX_CHAN4_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN4_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_5_CONFIGURATION, WM8996_AIF1TX_CHAN5_SLOTS_MASK | WM8996_AIF1TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN5_SLOTS_SHIFT | 1); regmap_update_bits(wm8996->regmap, WM8996_AIF2TX_CHANNEL_0_CONFIGURATION, WM8996_AIF2TX_CHAN0_SLOTS_MASK | WM8996_AIF2TX_CHAN0_START_SLOT_MASK, 1 << WM8996_AIF2TX_CHAN0_SLOTS_SHIFT | 0); regmap_update_bits(wm8996->regmap, WM8996_AIF1TX_CHANNEL_1_CONFIGURATION, WM8996_AIF2TX_CHAN1_SLOTS_MASK | WM8996_AIF2TX_CHAN1_START_SLOT_MASK, 1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1); /* If the TX LRCLK pins are not in LRCLK mode configure the * AIFs to source their clocks from the RX LRCLKs. */ ret = regmap_read(wm8996->regmap, WM8996_GPIO_1, ®); if (ret != 0) { dev_err(&i2c->dev, "Failed to read GPIO1: %d\n", ret); goto err_regmap; } if (reg & WM8996_GP1_FN_MASK) regmap_update_bits(wm8996->regmap, WM8996_AIF1_TX_LRCLK_2, WM8996_AIF1TX_LRCLK_MODE, WM8996_AIF1TX_LRCLK_MODE); ret = regmap_read(wm8996->regmap, WM8996_GPIO_2, ®); if (ret != 0) { dev_err(&i2c->dev, "Failed to read GPIO2: %d\n", ret); goto err_regmap; } if (reg & WM8996_GP2_FN_MASK) regmap_update_bits(wm8996->regmap, WM8996_AIF2_TX_LRCLK_2, WM8996_AIF2TX_LRCLK_MODE, WM8996_AIF2TX_LRCLK_MODE); wm8996_init_gpio(wm8996); ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_wm8996, wm8996_dai, ARRAY_SIZE(wm8996_dai)); if (ret < 0) goto err_gpiolib; return ret; err_gpiolib: wm8996_free_gpio(wm8996); err_regmap: err_enable: if (wm8996->ldo_ena) gpiod_set_value_cansleep(wm8996->ldo_ena, 0); regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); err_gpio: err: return ret; } static void wm8996_i2c_remove(struct i2c_client *client) { struct wm8996_priv *wm8996 = i2c_get_clientdata(client); wm8996_free_gpio(wm8996); if (wm8996->ldo_ena) gpiod_set_value_cansleep(wm8996->ldo_ena, 0); } static const struct i2c_device_id wm8996_i2c_id[] = { { "wm8996" }, { } }; MODULE_DEVICE_TABLE(i2c, wm8996_i2c_id); static struct i2c_driver wm8996_i2c_driver = { .driver = { .name = "wm8996", }, .probe = wm8996_i2c_probe, .remove = wm8996_i2c_remove, .id_table = wm8996_i2c_id, }; module_i2c_driver(wm8996_i2c_driver); MODULE_DESCRIPTION("ASoC WM8996 driver"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_LICENSE("GPL");
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2026-08-25