| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * wm8737.c -- WM8737 ALSA SoC Audio driver |
| * |
| * Copyright 2010 Wolfson Microelectronics plc |
| * |
| * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/pm.h> |
| #include <linux/i2c.h> |
| #include <linux/regmap.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/spi/spi.h> |
| #include <linux/slab.h> |
| #include <linux/of_device.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <sound/initval.h> |
| #include <sound/tlv.h> |
| |
| #include "wm8737.h" |
| |
| #define WM8737_NUM_SUPPLIES 4 |
| static const char *wm8737_supply_names[WM8737_NUM_SUPPLIES] = { |
| "DCVDD", |
| "DBVDD", |
| "AVDD", |
| "MVDD", |
| }; |
| |
| /* codec private data */ |
| struct wm8737_priv { |
| struct regmap *regmap; |
| struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; |
| unsigned int mclk; |
| }; |
| |
| static const struct reg_default wm8737_reg_defaults[] = { |
| { 0, 0x00C3 }, /* R0 - Left PGA volume */ |
| { 1, 0x00C3 }, /* R1 - Right PGA volume */ |
| { 2, 0x0007 }, /* R2 - AUDIO path L */ |
| { 3, 0x0007 }, /* R3 - AUDIO path R */ |
| { 4, 0x0000 }, /* R4 - 3D Enhance */ |
| { 5, 0x0000 }, /* R5 - ADC Control */ |
| { 6, 0x0000 }, /* R6 - Power Management */ |
| { 7, 0x000A }, /* R7 - Audio Format */ |
| { 8, 0x0000 }, /* R8 - Clocking */ |
| { 9, 0x000F }, /* R9 - MIC Preamp Control */ |
| { 10, 0x0003 }, /* R10 - Misc Bias Control */ |
| { 11, 0x0000 }, /* R11 - Noise Gate */ |
| { 12, 0x007C }, /* R12 - ALC1 */ |
| { 13, 0x0000 }, /* R13 - ALC2 */ |
| { 14, 0x0032 }, /* R14 - ALC3 */ |
| }; |
| |
| static bool wm8737_volatile(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case WM8737_RESET: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static int wm8737_reset(struct snd_soc_component *component) |
| { |
| return snd_soc_component_write(component, WM8737_RESET, 0); |
| } |
| |
| static const DECLARE_TLV_DB_RANGE(micboost_tlv, |
| 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), |
| 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), |
| 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), |
| 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0) |
| ); |
| static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); |
| static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); |
| static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); |
| static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); |
| static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); |
| |
| static const char *micbias_enum_text[] = { |
| "25%", |
| "50%", |
| "75%", |
| "100%", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(micbias_enum, |
| WM8737_MIC_PREAMP_CONTROL, 0, micbias_enum_text); |
| |
| static const char *low_cutoff_text[] = { |
| "Low", "High" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(low_3d, |
| WM8737_3D_ENHANCE, 6, low_cutoff_text); |
| |
| static const char *high_cutoff_text[] = { |
| "High", "Low" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(high_3d, |
| WM8737_3D_ENHANCE, 5, high_cutoff_text); |
| |
| static const char *alc_fn_text[] = { |
| "Disabled", "Right", "Left", "Stereo" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(alc_fn, |
| WM8737_ALC1, 7, alc_fn_text); |
| |
| static const char *alc_hold_text[] = { |
| "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", |
| "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", |
| "10.916s", "21.832s", "43.691s" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(alc_hold, |
| WM8737_ALC2, 0, alc_hold_text); |
| |
| static const char *alc_atk_text[] = { |
| "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", |
| "1.075s", "2.15s", "4.3s", "8.6s" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(alc_atk, |
| WM8737_ALC3, 0, alc_atk_text); |
| |
| static const char *alc_dcy_text[] = { |
| "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", |
| "4.3s", "8.6s", "17.2s", "34.41s" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(alc_dcy, |
| WM8737_ALC3, 4, alc_dcy_text); |
| |
| static const struct snd_kcontrol_new wm8737_snd_controls[] = { |
| SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 6, 3, 0, micboost_tlv), |
| SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 4, 1, 0), |
| SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 3, 1, 0), |
| |
| SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, |
| WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), |
| SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, |
| 2, 1, 0), |
| |
| SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), |
| |
| SOC_ENUM("Mic PGA Bias", micbias_enum), |
| SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), |
| SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), |
| SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), |
| |
| SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), |
| SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), |
| SOC_ENUM("3D Low Cut-off", low_3d), |
| SOC_ENUM("3D High Cut-off", high_3d), |
| SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), |
| |
| SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), |
| SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, |
| ng_tlv), |
| |
| SOC_ENUM("ALC", alc_fn), |
| SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), |
| SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), |
| SOC_ENUM("ALC Hold Time", alc_hold), |
| SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), |
| SOC_ENUM("ALC Attack Time", alc_atk), |
| SOC_ENUM("ALC Decay Time", alc_dcy), |
| }; |
| |
| static const char *linsel_text[] = { |
| "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(linsel_enum, |
| WM8737_AUDIO_PATH_L, 7, linsel_text); |
| |
| static const struct snd_kcontrol_new linsel_mux = |
| SOC_DAPM_ENUM("LINSEL", linsel_enum); |
| |
| |
| static const char *rinsel_text[] = { |
| "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(rinsel_enum, |
| WM8737_AUDIO_PATH_R, 7, rinsel_text); |
| |
| static const struct snd_kcontrol_new rinsel_mux = |
| SOC_DAPM_ENUM("RINSEL", rinsel_enum); |
| |
| static const char *bypass_text[] = { |
| "Direct", "Preamp" |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(lbypass_enum, |
| WM8737_MIC_PREAMP_CONTROL, 2, bypass_text); |
| |
| static const struct snd_kcontrol_new lbypass_mux = |
| SOC_DAPM_ENUM("Left Bypass", lbypass_enum); |
| |
| |
| static SOC_ENUM_SINGLE_DECL(rbypass_enum, |
| WM8737_MIC_PREAMP_CONTROL, 3, bypass_text); |
| |
| static const struct snd_kcontrol_new rbypass_mux = |
| SOC_DAPM_ENUM("Left Bypass", rbypass_enum); |
| |
| static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { |
| SND_SOC_DAPM_INPUT("LINPUT1"), |
| SND_SOC_DAPM_INPUT("LINPUT2"), |
| SND_SOC_DAPM_INPUT("LINPUT3"), |
| SND_SOC_DAPM_INPUT("RINPUT1"), |
| SND_SOC_DAPM_INPUT("RINPUT2"), |
| SND_SOC_DAPM_INPUT("RINPUT3"), |
| SND_SOC_DAPM_INPUT("LACIN"), |
| SND_SOC_DAPM_INPUT("RACIN"), |
| |
| SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), |
| SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), |
| |
| SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), |
| SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), |
| |
| SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), |
| |
| SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), |
| SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), |
| |
| SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), |
| }; |
| |
| static const struct snd_soc_dapm_route intercon[] = { |
| { "LINSEL", "LINPUT1", "LINPUT1" }, |
| { "LINSEL", "LINPUT2", "LINPUT2" }, |
| { "LINSEL", "LINPUT3", "LINPUT3" }, |
| { "LINSEL", "LINPUT1 DC", "LINPUT1" }, |
| |
| { "RINSEL", "RINPUT1", "RINPUT1" }, |
| { "RINSEL", "RINPUT2", "RINPUT2" }, |
| { "RINSEL", "RINPUT3", "RINPUT3" }, |
| { "RINSEL", "RINPUT1 DC", "RINPUT1" }, |
| |
| { "Left Preamp Mux", "Preamp", "LINSEL" }, |
| { "Left Preamp Mux", "Direct", "LACIN" }, |
| |
| { "Right Preamp Mux", "Preamp", "RINSEL" }, |
| { "Right Preamp Mux", "Direct", "RACIN" }, |
| |
| { "PGAL", NULL, "Left Preamp Mux" }, |
| { "PGAR", NULL, "Right Preamp Mux" }, |
| |
| { "ADCL", NULL, "PGAL" }, |
| { "ADCR", NULL, "PGAR" }, |
| |
| { "AIF", NULL, "ADCL" }, |
| { "AIF", NULL, "ADCR" }, |
| }; |
| |
| /* codec mclk clock divider coefficients */ |
| static const struct { |
| u32 mclk; |
| u32 rate; |
| u8 usb; |
| u8 sr; |
| } coeff_div[] = { |
| { 12288000, 8000, 0, 0x4 }, |
| { 12288000, 12000, 0, 0x8 }, |
| { 12288000, 16000, 0, 0xa }, |
| { 12288000, 24000, 0, 0x1c }, |
| { 12288000, 32000, 0, 0xc }, |
| { 12288000, 48000, 0, 0 }, |
| { 12288000, 96000, 0, 0xe }, |
| |
| { 11289600, 8000, 0, 0x14 }, |
| { 11289600, 11025, 0, 0x18 }, |
| { 11289600, 22050, 0, 0x1a }, |
| { 11289600, 44100, 0, 0x10 }, |
| { 11289600, 88200, 0, 0x1e }, |
| |
| { 18432000, 8000, 0, 0x5 }, |
| { 18432000, 12000, 0, 0x9 }, |
| { 18432000, 16000, 0, 0xb }, |
| { 18432000, 24000, 0, 0x1b }, |
| { 18432000, 32000, 0, 0xd }, |
| { 18432000, 48000, 0, 0x1 }, |
| { 18432000, 96000, 0, 0x1f }, |
| |
| { 16934400, 8000, 0, 0x15 }, |
| { 16934400, 11025, 0, 0x19 }, |
| { 16934400, 22050, 0, 0x1b }, |
| { 16934400, 44100, 0, 0x11 }, |
| { 16934400, 88200, 0, 0x1f }, |
| |
| { 12000000, 8000, 1, 0x4 }, |
| { 12000000, 11025, 1, 0x19 }, |
| { 12000000, 12000, 1, 0x8 }, |
| { 12000000, 16000, 1, 0xa }, |
| { 12000000, 22050, 1, 0x1b }, |
| { 12000000, 24000, 1, 0x1c }, |
| { 12000000, 32000, 1, 0xc }, |
| { 12000000, 44100, 1, 0x11 }, |
| { 12000000, 48000, 1, 0x0 }, |
| { 12000000, 88200, 1, 0x1f }, |
| { 12000000, 96000, 1, 0xe }, |
| }; |
| |
| static int wm8737_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 wm8737_priv *wm8737 = snd_soc_component_get_drvdata(component); |
| int i; |
| u16 clocking = 0; |
| u16 af = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| if (coeff_div[i].rate != params_rate(params)) |
| continue; |
| |
| if (coeff_div[i].mclk == wm8737->mclk) |
| break; |
| |
| if (coeff_div[i].mclk == wm8737->mclk * 2) { |
| clocking |= WM8737_CLKDIV2; |
| break; |
| } |
| } |
| |
| if (i == ARRAY_SIZE(coeff_div)) { |
| dev_err(component->dev, "%dHz MCLK can't support %dHz\n", |
| wm8737->mclk, params_rate(params)); |
| return -EINVAL; |
| } |
| |
| clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); |
| |
| switch (params_width(params)) { |
| case 16: |
| break; |
| case 20: |
| af |= 0x8; |
| break; |
| case 24: |
| af |= 0x10; |
| break; |
| case 32: |
| af |= 0x18; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_component_update_bits(component, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); |
| snd_soc_component_update_bits(component, WM8737_CLOCKING, |
| WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, |
| clocking); |
| |
| return 0; |
| } |
| |
| static int wm8737_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 wm8737_priv *wm8737 = snd_soc_component_get_drvdata(component); |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| if (freq == coeff_div[i].mclk || |
| freq == coeff_div[i].mclk * 2) { |
| wm8737->mclk = freq; |
| return 0; |
| } |
| } |
| |
| dev_err(component->dev, "MCLK rate %dHz not supported\n", freq); |
| |
| return -EINVAL; |
| } |
| |
| |
| static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_component *component = codec_dai->component; |
| u16 af = 0; |
| |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBM_CFM: |
| af |= WM8737_MS; |
| break; |
| case SND_SOC_DAIFMT_CBS_CFS: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| af |= 0x2; |
| break; |
| case SND_SOC_DAIFMT_RIGHT_J: |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| af |= 0x1; |
| break; |
| case SND_SOC_DAIFMT_DSP_A: |
| af |= 0x3; |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| af |= 0x13; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| break; |
| case SND_SOC_DAIFMT_NB_IF: |
| af |= WM8737_LRP; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_component_update_bits(component, WM8737_AUDIO_FORMAT, |
| WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); |
| |
| return 0; |
| } |
| |
| static int wm8737_set_bias_level(struct snd_soc_component *component, |
| enum snd_soc_bias_level level) |
| { |
| struct wm8737_priv *wm8737 = snd_soc_component_get_drvdata(component); |
| int ret; |
| |
| switch (level) { |
| case SND_SOC_BIAS_ON: |
| break; |
| |
| case SND_SOC_BIAS_PREPARE: |
| /* VMID at 2*75k */ |
| snd_soc_component_update_bits(component, WM8737_MISC_BIAS_CONTROL, |
| WM8737_VMIDSEL_MASK, 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(wm8737->supplies), |
| wm8737->supplies); |
| if (ret != 0) { |
| dev_err(component->dev, |
| "Failed to enable supplies: %d\n", |
| ret); |
| return ret; |
| } |
| |
| regcache_sync(wm8737->regmap); |
| |
| /* Fast VMID ramp at 2*2.5k */ |
| snd_soc_component_update_bits(component, WM8737_MISC_BIAS_CONTROL, |
| WM8737_VMIDSEL_MASK, |
| 2 << WM8737_VMIDSEL_SHIFT); |
| |
| /* Bring VMID up */ |
| snd_soc_component_update_bits(component, WM8737_POWER_MANAGEMENT, |
| WM8737_VMID_MASK | |
| WM8737_VREF_MASK, |
| WM8737_VMID_MASK | |
| WM8737_VREF_MASK); |
| |
| msleep(500); |
| } |
| |
| /* VMID at 2*300k */ |
| snd_soc_component_update_bits(component, WM8737_MISC_BIAS_CONTROL, |
| WM8737_VMIDSEL_MASK, |
| 1 << WM8737_VMIDSEL_SHIFT); |
| |
| break; |
| |
| case SND_SOC_BIAS_OFF: |
| snd_soc_component_update_bits(component, WM8737_POWER_MANAGEMENT, |
| WM8737_VMID_MASK | WM8737_VREF_MASK, 0); |
| |
| regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), |
| wm8737->supplies); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 |
| |
| #define WM8737_FORMATS (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 wm8737_dai_ops = { |
| .hw_params = wm8737_hw_params, |
| .set_sysclk = wm8737_set_dai_sysclk, |
| .set_fmt = wm8737_set_dai_fmt, |
| }; |
| |
| static struct snd_soc_dai_driver wm8737_dai = { |
| .name = "wm8737", |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 2, /* Mono modes not yet supported */ |
| .channels_max = 2, |
| .rates = WM8737_RATES, |
| .formats = WM8737_FORMATS, |
| }, |
| .ops = &wm8737_dai_ops, |
| }; |
| |
| static int wm8737_probe(struct snd_soc_component *component) |
| { |
| struct wm8737_priv *wm8737 = snd_soc_component_get_drvdata(component); |
| int ret; |
| |
| ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), |
| wm8737->supplies); |
| if (ret != 0) { |
| dev_err(component->dev, "Failed to enable supplies: %d\n", ret); |
| goto err_get; |
| } |
| |
| ret = wm8737_reset(component); |
| if (ret < 0) { |
| dev_err(component->dev, "Failed to issue reset\n"); |
| goto err_enable; |
| } |
| |
| snd_soc_component_update_bits(component, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, |
| WM8737_LVU); |
| snd_soc_component_update_bits(component, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, |
| WM8737_RVU); |
| |
| snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); |
| |
| /* Bias level configuration will have done an extra enable */ |
| regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| |
| return 0; |
| |
| err_enable: |
| regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); |
| err_get: |
| return ret; |
| } |
| |
| static const struct snd_soc_component_driver soc_component_dev_wm8737 = { |
| .probe = wm8737_probe, |
| .set_bias_level = wm8737_set_bias_level, |
| .controls = wm8737_snd_controls, |
| .num_controls = ARRAY_SIZE(wm8737_snd_controls), |
| .dapm_widgets = wm8737_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(wm8737_dapm_widgets), |
| .dapm_routes = intercon, |
| .num_dapm_routes = ARRAY_SIZE(intercon), |
| .suspend_bias_off = 1, |
| .idle_bias_on = 1, |
| .use_pmdown_time = 1, |
| .endianness = 1, |
| .non_legacy_dai_naming = 1, |
| }; |
| |
| static const struct of_device_id wm8737_of_match[] = { |
| { .compatible = "wlf,wm8737", }, |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(of, wm8737_of_match); |
| |
| static const struct regmap_config wm8737_regmap = { |
| .reg_bits = 7, |
| .val_bits = 9, |
| .max_register = WM8737_MAX_REGISTER, |
| |
| .reg_defaults = wm8737_reg_defaults, |
| .num_reg_defaults = ARRAY_SIZE(wm8737_reg_defaults), |
| .cache_type = REGCACHE_RBTREE, |
| |
| .volatile_reg = wm8737_volatile, |
| }; |
| |
| #if IS_ENABLED(CONFIG_I2C) |
| static int wm8737_i2c_probe(struct i2c_client *i2c) |
| { |
| struct wm8737_priv *wm8737; |
| int ret, i; |
| |
| wm8737 = devm_kzalloc(&i2c->dev, sizeof(struct wm8737_priv), |
| GFP_KERNEL); |
| if (wm8737 == NULL) |
| return -ENOMEM; |
| |
| for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) |
| wm8737->supplies[i].supply = wm8737_supply_names[i]; |
| |
| ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8737->supplies), |
| wm8737->supplies); |
| if (ret != 0) { |
| dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); |
| return ret; |
| } |
| |
| wm8737->regmap = devm_regmap_init_i2c(i2c, &wm8737_regmap); |
| if (IS_ERR(wm8737->regmap)) |
| return PTR_ERR(wm8737->regmap); |
| |
| i2c_set_clientdata(i2c, wm8737); |
| |
| ret = devm_snd_soc_register_component(&i2c->dev, |
| &soc_component_dev_wm8737, &wm8737_dai, 1); |
| |
| return ret; |
| |
| } |
| |
| static const struct i2c_device_id wm8737_i2c_id[] = { |
| { "wm8737", 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); |
| |
| static struct i2c_driver wm8737_i2c_driver = { |
| .driver = { |
| .name = "wm8737", |
| .of_match_table = wm8737_of_match, |
| }, |
| .probe_new = wm8737_i2c_probe, |
| .id_table = wm8737_i2c_id, |
| }; |
| #endif |
| |
| #if defined(CONFIG_SPI_MASTER) |
| static int wm8737_spi_probe(struct spi_device *spi) |
| { |
| struct wm8737_priv *wm8737; |
| int ret, i; |
| |
| wm8737 = devm_kzalloc(&spi->dev, sizeof(struct wm8737_priv), |
| GFP_KERNEL); |
| if (wm8737 == NULL) |
| return -ENOMEM; |
| |
| for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) |
| wm8737->supplies[i].supply = wm8737_supply_names[i]; |
| |
| ret = devm_regulator_bulk_get(&spi->dev, ARRAY_SIZE(wm8737->supplies), |
| wm8737->supplies); |
| if (ret != 0) { |
| dev_err(&spi->dev, "Failed to request supplies: %d\n", ret); |
| return ret; |
| } |
| |
| wm8737->regmap = devm_regmap_init_spi(spi, &wm8737_regmap); |
| if (IS_ERR(wm8737->regmap)) |
| return PTR_ERR(wm8737->regmap); |
| |
| spi_set_drvdata(spi, wm8737); |
| |
| ret = devm_snd_soc_register_component(&spi->dev, |
| &soc_component_dev_wm8737, &wm8737_dai, 1); |
| |
| return ret; |
| } |
| |
| static struct spi_driver wm8737_spi_driver = { |
| .driver = { |
| .name = "wm8737", |
| .of_match_table = wm8737_of_match, |
| }, |
| .probe = wm8737_spi_probe, |
| }; |
| #endif /* CONFIG_SPI_MASTER */ |
| |
| static int __init wm8737_modinit(void) |
| { |
| int ret; |
| #if IS_ENABLED(CONFIG_I2C) |
| ret = i2c_add_driver(&wm8737_i2c_driver); |
| if (ret != 0) { |
| printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", |
| ret); |
| } |
| #endif |
| #if defined(CONFIG_SPI_MASTER) |
| ret = spi_register_driver(&wm8737_spi_driver); |
| if (ret != 0) { |
| printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", |
| ret); |
| } |
| #endif |
| return 0; |
| } |
| module_init(wm8737_modinit); |
| |
| static void __exit wm8737_exit(void) |
| { |
| #if defined(CONFIG_SPI_MASTER) |
| spi_unregister_driver(&wm8737_spi_driver); |
| #endif |
| #if IS_ENABLED(CONFIG_I2C) |
| i2c_del_driver(&wm8737_i2c_driver); |
| #endif |
| } |
| module_exit(wm8737_exit); |
| |
| MODULE_DESCRIPTION("ASoC WM8737 driver"); |
| MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| MODULE_LICENSE("GPL"); |