12a9ae13aSMark Brown /* 22a9ae13aSMark Brown * wm8737.c -- WM8737 ALSA SoC Audio driver 32a9ae13aSMark Brown * 42a9ae13aSMark Brown * Copyright 2010 Wolfson Microelectronics plc 52a9ae13aSMark Brown * 62a9ae13aSMark Brown * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 72a9ae13aSMark Brown * 82a9ae13aSMark Brown * This program is free software; you can redistribute it and/or modify 92a9ae13aSMark Brown * it under the terms of the GNU General Public License version 2 as 102a9ae13aSMark Brown * published by the Free Software Foundation. 112a9ae13aSMark Brown */ 122a9ae13aSMark Brown 132a9ae13aSMark Brown #include <linux/module.h> 142a9ae13aSMark Brown #include <linux/moduleparam.h> 152a9ae13aSMark Brown #include <linux/init.h> 162a9ae13aSMark Brown #include <linux/delay.h> 172a9ae13aSMark Brown #include <linux/pm.h> 182a9ae13aSMark Brown #include <linux/i2c.h> 19*3ef8ac0dSMark Brown #include <linux/regmap.h> 202a9ae13aSMark Brown #include <linux/regulator/consumer.h> 212a9ae13aSMark Brown #include <linux/spi/spi.h> 222a9ae13aSMark Brown #include <linux/slab.h> 2353a5a83dSMark Brown #include <linux/of_device.h> 242a9ae13aSMark Brown #include <sound/core.h> 252a9ae13aSMark Brown #include <sound/pcm.h> 262a9ae13aSMark Brown #include <sound/pcm_params.h> 272a9ae13aSMark Brown #include <sound/soc.h> 282a9ae13aSMark Brown #include <sound/soc-dapm.h> 292a9ae13aSMark Brown #include <sound/initval.h> 302a9ae13aSMark Brown #include <sound/tlv.h> 312a9ae13aSMark Brown 322a9ae13aSMark Brown #include "wm8737.h" 332a9ae13aSMark Brown 342a9ae13aSMark Brown #define WM8737_NUM_SUPPLIES 4 352a9ae13aSMark Brown static const char *wm8737_supply_names[WM8737_NUM_SUPPLIES] = { 362a9ae13aSMark Brown "DCVDD", 372a9ae13aSMark Brown "DBVDD", 382a9ae13aSMark Brown "AVDD", 392a9ae13aSMark Brown "MVDD", 402a9ae13aSMark Brown }; 412a9ae13aSMark Brown 422a9ae13aSMark Brown /* codec private data */ 432a9ae13aSMark Brown struct wm8737_priv { 44*3ef8ac0dSMark Brown struct regmap *regmap; 452a9ae13aSMark Brown struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; 462a9ae13aSMark Brown unsigned int mclk; 472a9ae13aSMark Brown }; 482a9ae13aSMark Brown 49*3ef8ac0dSMark Brown static const struct reg_default wm8737_reg_defaults[] = { 50*3ef8ac0dSMark Brown { 0, 0x00C3 }, /* R0 - Left PGA volume */ 51*3ef8ac0dSMark Brown { 1, 0x00C3 }, /* R1 - Right PGA volume */ 52*3ef8ac0dSMark Brown { 2, 0x0007 }, /* R2 - AUDIO path L */ 53*3ef8ac0dSMark Brown { 3, 0x0007 }, /* R3 - AUDIO path R */ 54*3ef8ac0dSMark Brown { 4, 0x0000 }, /* R4 - 3D Enhance */ 55*3ef8ac0dSMark Brown { 5, 0x0000 }, /* R5 - ADC Control */ 56*3ef8ac0dSMark Brown { 6, 0x0000 }, /* R6 - Power Management */ 57*3ef8ac0dSMark Brown { 7, 0x000A }, /* R7 - Audio Format */ 58*3ef8ac0dSMark Brown { 8, 0x0000 }, /* R8 - Clocking */ 59*3ef8ac0dSMark Brown { 9, 0x000F }, /* R9 - MIC Preamp Control */ 60*3ef8ac0dSMark Brown { 10, 0x0003 }, /* R10 - Misc Bias Control */ 61*3ef8ac0dSMark Brown { 11, 0x0000 }, /* R11 - Noise Gate */ 62*3ef8ac0dSMark Brown { 12, 0x007C }, /* R12 - ALC1 */ 63*3ef8ac0dSMark Brown { 13, 0x0000 }, /* R13 - ALC2 */ 64*3ef8ac0dSMark Brown { 14, 0x0032 }, /* R14 - ALC3 */ 652a9ae13aSMark Brown }; 662a9ae13aSMark Brown 67*3ef8ac0dSMark Brown static bool wm8737_volatile(struct device *dev, unsigned int reg) 68*3ef8ac0dSMark Brown { 69*3ef8ac0dSMark Brown switch (reg) { 70*3ef8ac0dSMark Brown case WM8737_RESET: 71*3ef8ac0dSMark Brown return true; 72*3ef8ac0dSMark Brown default: 73*3ef8ac0dSMark Brown return false; 74*3ef8ac0dSMark Brown } 75*3ef8ac0dSMark Brown } 76*3ef8ac0dSMark Brown 772a9ae13aSMark Brown static int wm8737_reset(struct snd_soc_codec *codec) 782a9ae13aSMark Brown { 792a9ae13aSMark Brown return snd_soc_write(codec, WM8737_RESET, 0); 802a9ae13aSMark Brown } 812a9ae13aSMark Brown 822a9ae13aSMark Brown static const unsigned int micboost_tlv[] = { 832a9ae13aSMark Brown TLV_DB_RANGE_HEAD(4), 842a9ae13aSMark Brown 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), 852a9ae13aSMark Brown 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), 862a9ae13aSMark Brown 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), 872a9ae13aSMark Brown 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0), 882a9ae13aSMark Brown }; 892a9ae13aSMark Brown static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); 902a9ae13aSMark Brown static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); 912a9ae13aSMark Brown static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); 92fcd02e26SMark Brown static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); 93fcd02e26SMark Brown static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); 942a9ae13aSMark Brown 952a9ae13aSMark Brown static const char *micbias_enum_text[] = { 962a9ae13aSMark Brown "25%", 972a9ae13aSMark Brown "50%", 982a9ae13aSMark Brown "75%", 992a9ae13aSMark Brown "100%", 1002a9ae13aSMark Brown }; 1012a9ae13aSMark Brown 1022a9ae13aSMark Brown static const struct soc_enum micbias_enum = 1032a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 0, 4, micbias_enum_text); 1042a9ae13aSMark Brown 1052a9ae13aSMark Brown static const char *low_cutoff_text[] = { 1062a9ae13aSMark Brown "Low", "High" 1072a9ae13aSMark Brown }; 1082a9ae13aSMark Brown 1092a9ae13aSMark Brown static const struct soc_enum low_3d = 1102a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 6, 2, low_cutoff_text); 1112a9ae13aSMark Brown 1122a9ae13aSMark Brown static const char *high_cutoff_text[] = { 1132a9ae13aSMark Brown "High", "Low" 1142a9ae13aSMark Brown }; 1152a9ae13aSMark Brown 1162a9ae13aSMark Brown static const struct soc_enum high_3d = 1172a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 5, 2, high_cutoff_text); 1182a9ae13aSMark Brown 119fcd02e26SMark Brown static const char *alc_fn_text[] = { 120fcd02e26SMark Brown "Disabled", "Right", "Left", "Stereo" 121fcd02e26SMark Brown }; 122fcd02e26SMark Brown 123fcd02e26SMark Brown static const struct soc_enum alc_fn = 124fcd02e26SMark Brown SOC_ENUM_SINGLE(WM8737_ALC1, 7, 4, alc_fn_text); 125fcd02e26SMark Brown 126fcd02e26SMark Brown static const char *alc_hold_text[] = { 127fcd02e26SMark Brown "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", 128fcd02e26SMark Brown "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", 129fcd02e26SMark Brown "10.916s", "21.832s", "43.691s" 130fcd02e26SMark Brown }; 131fcd02e26SMark Brown 132fcd02e26SMark Brown static const struct soc_enum alc_hold = 133fcd02e26SMark Brown SOC_ENUM_SINGLE(WM8737_ALC2, 0, 16, alc_hold_text); 134fcd02e26SMark Brown 135fcd02e26SMark Brown static const char *alc_atk_text[] = { 136fcd02e26SMark Brown "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", 137fcd02e26SMark Brown "1.075s", "2.15s", "4.3s", "8.6s" 138fcd02e26SMark Brown }; 139fcd02e26SMark Brown 140fcd02e26SMark Brown static const struct soc_enum alc_atk = 141fcd02e26SMark Brown SOC_ENUM_SINGLE(WM8737_ALC3, 0, 11, alc_atk_text); 142fcd02e26SMark Brown 143fcd02e26SMark Brown static const char *alc_dcy_text[] = { 144fcd02e26SMark Brown "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", 145fcd02e26SMark Brown "4.3s", "8.6s", "17.2s", "34.41s" 146fcd02e26SMark Brown }; 147fcd02e26SMark Brown 148fcd02e26SMark Brown static const struct soc_enum alc_dcy = 149fcd02e26SMark Brown SOC_ENUM_SINGLE(WM8737_ALC3, 4, 11, alc_dcy_text); 150fcd02e26SMark Brown 1512a9ae13aSMark Brown static const struct snd_kcontrol_new wm8737_snd_controls[] = { 1522a9ae13aSMark Brown SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, 1532a9ae13aSMark Brown 6, 3, 0, micboost_tlv), 1542a9ae13aSMark Brown SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, 1552a9ae13aSMark Brown 4, 1, 0), 1562a9ae13aSMark Brown SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, 1572a9ae13aSMark Brown 3, 1, 0), 1582a9ae13aSMark Brown 1592a9ae13aSMark Brown SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, 1602a9ae13aSMark Brown WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), 1612a9ae13aSMark Brown SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, 1622a9ae13aSMark Brown 2, 1, 0), 1632a9ae13aSMark Brown 1642a9ae13aSMark Brown SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), 1652a9ae13aSMark Brown 1662a9ae13aSMark Brown SOC_ENUM("Mic PGA Bias", micbias_enum), 1672a9ae13aSMark Brown SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), 1682a9ae13aSMark Brown SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), 1692a9ae13aSMark Brown SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), 1702a9ae13aSMark Brown 1712a9ae13aSMark Brown SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), 1722a9ae13aSMark Brown SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), 1732a9ae13aSMark Brown SOC_ENUM("3D Low Cut-off", low_3d), 1742a9ae13aSMark Brown SOC_ENUM("3D High Cut-off", low_3d), 1752a9ae13aSMark Brown SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), 1762a9ae13aSMark Brown 1772a9ae13aSMark Brown SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), 1782a9ae13aSMark Brown SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, 1792a9ae13aSMark Brown ng_tlv), 180fcd02e26SMark Brown 181fcd02e26SMark Brown SOC_ENUM("ALC", alc_fn), 182fcd02e26SMark Brown SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), 183fcd02e26SMark Brown SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), 184fcd02e26SMark Brown SOC_ENUM("ALC Hold Time", alc_hold), 185fcd02e26SMark Brown SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), 186fcd02e26SMark Brown SOC_ENUM("ALC Attack Time", alc_atk), 187fcd02e26SMark Brown SOC_ENUM("ALC Decay Time", alc_dcy), 1882a9ae13aSMark Brown }; 1892a9ae13aSMark Brown 1902a9ae13aSMark Brown static const char *linsel_text[] = { 1912a9ae13aSMark Brown "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", 1922a9ae13aSMark Brown }; 1932a9ae13aSMark Brown 1942a9ae13aSMark Brown static const struct soc_enum linsel_enum = 1952a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_L, 7, 4, linsel_text); 1962a9ae13aSMark Brown 1972a9ae13aSMark Brown static const struct snd_kcontrol_new linsel_mux = 1982a9ae13aSMark Brown SOC_DAPM_ENUM("LINSEL", linsel_enum); 1992a9ae13aSMark Brown 2002a9ae13aSMark Brown 2012a9ae13aSMark Brown static const char *rinsel_text[] = { 2022a9ae13aSMark Brown "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", 2032a9ae13aSMark Brown }; 2042a9ae13aSMark Brown 2052a9ae13aSMark Brown static const struct soc_enum rinsel_enum = 2062a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_R, 7, 4, rinsel_text); 2072a9ae13aSMark Brown 2082a9ae13aSMark Brown static const struct snd_kcontrol_new rinsel_mux = 2092a9ae13aSMark Brown SOC_DAPM_ENUM("RINSEL", rinsel_enum); 2102a9ae13aSMark Brown 2112a9ae13aSMark Brown static const char *bypass_text[] = { 2122a9ae13aSMark Brown "Direct", "Preamp" 2132a9ae13aSMark Brown }; 2142a9ae13aSMark Brown 2152a9ae13aSMark Brown static const struct soc_enum lbypass_enum = 2162a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 2, 2, bypass_text); 2172a9ae13aSMark Brown 2182a9ae13aSMark Brown static const struct snd_kcontrol_new lbypass_mux = 2192a9ae13aSMark Brown SOC_DAPM_ENUM("Left Bypass", lbypass_enum); 2202a9ae13aSMark Brown 2212a9ae13aSMark Brown 2222a9ae13aSMark Brown static const struct soc_enum rbypass_enum = 2232a9ae13aSMark Brown SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 3, 2, bypass_text); 2242a9ae13aSMark Brown 2252a9ae13aSMark Brown static const struct snd_kcontrol_new rbypass_mux = 2262a9ae13aSMark Brown SOC_DAPM_ENUM("Left Bypass", rbypass_enum); 2272a9ae13aSMark Brown 2282a9ae13aSMark Brown static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { 2292a9ae13aSMark Brown SND_SOC_DAPM_INPUT("LINPUT1"), 2302a9ae13aSMark Brown SND_SOC_DAPM_INPUT("LINPUT2"), 2312a9ae13aSMark Brown SND_SOC_DAPM_INPUT("LINPUT3"), 2322a9ae13aSMark Brown SND_SOC_DAPM_INPUT("RINPUT1"), 2332a9ae13aSMark Brown SND_SOC_DAPM_INPUT("RINPUT2"), 2342a9ae13aSMark Brown SND_SOC_DAPM_INPUT("RINPUT3"), 2352a9ae13aSMark Brown SND_SOC_DAPM_INPUT("LACIN"), 2362a9ae13aSMark Brown SND_SOC_DAPM_INPUT("RACIN"), 2372a9ae13aSMark Brown 2382a9ae13aSMark Brown SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), 2392a9ae13aSMark Brown SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), 2402a9ae13aSMark Brown 2412a9ae13aSMark Brown SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), 2422a9ae13aSMark Brown SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), 2432a9ae13aSMark Brown 2442a9ae13aSMark Brown SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), 2452a9ae13aSMark Brown SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), 2462a9ae13aSMark Brown 2472a9ae13aSMark Brown SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), 2482a9ae13aSMark Brown SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), 2492a9ae13aSMark Brown 2502a9ae13aSMark Brown SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), 2512a9ae13aSMark Brown }; 2522a9ae13aSMark Brown 2532a9ae13aSMark Brown static const struct snd_soc_dapm_route intercon[] = { 2542a9ae13aSMark Brown { "LINSEL", "LINPUT1", "LINPUT1" }, 2552a9ae13aSMark Brown { "LINSEL", "LINPUT2", "LINPUT2" }, 2562a9ae13aSMark Brown { "LINSEL", "LINPUT3", "LINPUT3" }, 2572a9ae13aSMark Brown { "LINSEL", "LINPUT1 DC", "LINPUT1" }, 2582a9ae13aSMark Brown 2592a9ae13aSMark Brown { "RINSEL", "RINPUT1", "RINPUT1" }, 2602a9ae13aSMark Brown { "RINSEL", "RINPUT2", "RINPUT2" }, 2612a9ae13aSMark Brown { "RINSEL", "RINPUT3", "RINPUT3" }, 2622a9ae13aSMark Brown { "RINSEL", "RINPUT1 DC", "RINPUT1" }, 2632a9ae13aSMark Brown 2642a9ae13aSMark Brown { "Left Preamp Mux", "Preamp", "LINSEL" }, 2652a9ae13aSMark Brown { "Left Preamp Mux", "Direct", "LACIN" }, 2662a9ae13aSMark Brown 2672a9ae13aSMark Brown { "Right Preamp Mux", "Preamp", "RINSEL" }, 2682a9ae13aSMark Brown { "Right Preamp Mux", "Direct", "RACIN" }, 2692a9ae13aSMark Brown 2702a9ae13aSMark Brown { "PGAL", NULL, "Left Preamp Mux" }, 2712a9ae13aSMark Brown { "PGAR", NULL, "Right Preamp Mux" }, 2722a9ae13aSMark Brown 2732a9ae13aSMark Brown { "ADCL", NULL, "PGAL" }, 2742a9ae13aSMark Brown { "ADCR", NULL, "PGAR" }, 2752a9ae13aSMark Brown 2762a9ae13aSMark Brown { "AIF", NULL, "ADCL" }, 2772a9ae13aSMark Brown { "AIF", NULL, "ADCR" }, 2782a9ae13aSMark Brown }; 2792a9ae13aSMark Brown 2802a9ae13aSMark Brown static int wm8737_add_widgets(struct snd_soc_codec *codec) 2812a9ae13aSMark Brown { 2822a9ae13aSMark Brown struct snd_soc_dapm_context *dapm = &codec->dapm; 2832a9ae13aSMark Brown 2842a9ae13aSMark Brown snd_soc_dapm_new_controls(dapm, wm8737_dapm_widgets, 2852a9ae13aSMark Brown ARRAY_SIZE(wm8737_dapm_widgets)); 2862a9ae13aSMark Brown snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); 2872a9ae13aSMark Brown 2882a9ae13aSMark Brown return 0; 2892a9ae13aSMark Brown } 2902a9ae13aSMark Brown 2912a9ae13aSMark Brown /* codec mclk clock divider coefficients */ 2922a9ae13aSMark Brown static const struct { 2932a9ae13aSMark Brown u32 mclk; 2942a9ae13aSMark Brown u32 rate; 2952a9ae13aSMark Brown u8 usb; 2962a9ae13aSMark Brown u8 sr; 2972a9ae13aSMark Brown } coeff_div[] = { 2982a9ae13aSMark Brown { 12288000, 8000, 0, 0x4 }, 2992a9ae13aSMark Brown { 12288000, 12000, 0, 0x8 }, 3002a9ae13aSMark Brown { 12288000, 16000, 0, 0xa }, 3012a9ae13aSMark Brown { 12288000, 24000, 0, 0x1c }, 3022a9ae13aSMark Brown { 12288000, 32000, 0, 0xc }, 3032a9ae13aSMark Brown { 12288000, 48000, 0, 0 }, 3042a9ae13aSMark Brown { 12288000, 96000, 0, 0xe }, 3052a9ae13aSMark Brown 3062a9ae13aSMark Brown { 11289600, 8000, 0, 0x14 }, 3072a9ae13aSMark Brown { 11289600, 11025, 0, 0x18 }, 3082a9ae13aSMark Brown { 11289600, 22050, 0, 0x1a }, 3092a9ae13aSMark Brown { 11289600, 44100, 0, 0x10 }, 3102a9ae13aSMark Brown { 11289600, 88200, 0, 0x1e }, 3112a9ae13aSMark Brown 3122a9ae13aSMark Brown { 18432000, 8000, 0, 0x5 }, 3132a9ae13aSMark Brown { 18432000, 12000, 0, 0x9 }, 3142a9ae13aSMark Brown { 18432000, 16000, 0, 0xb }, 3152a9ae13aSMark Brown { 18432000, 24000, 0, 0x1b }, 3162a9ae13aSMark Brown { 18432000, 32000, 0, 0xd }, 3172a9ae13aSMark Brown { 18432000, 48000, 0, 0x1 }, 3182a9ae13aSMark Brown { 18432000, 96000, 0, 0x1f }, 3192a9ae13aSMark Brown 3202a9ae13aSMark Brown { 16934400, 8000, 0, 0x15 }, 3212a9ae13aSMark Brown { 16934400, 11025, 0, 0x19 }, 3222a9ae13aSMark Brown { 16934400, 22050, 0, 0x1b }, 3232a9ae13aSMark Brown { 16934400, 44100, 0, 0x11 }, 3242a9ae13aSMark Brown { 16934400, 88200, 0, 0x1f }, 3252a9ae13aSMark Brown 3262a9ae13aSMark Brown { 12000000, 8000, 1, 0x4 }, 3272a9ae13aSMark Brown { 12000000, 11025, 1, 0x19 }, 3282a9ae13aSMark Brown { 12000000, 12000, 1, 0x8 }, 3292a9ae13aSMark Brown { 12000000, 16000, 1, 0xa }, 3302a9ae13aSMark Brown { 12000000, 22050, 1, 0x1b }, 3312a9ae13aSMark Brown { 12000000, 24000, 1, 0x1c }, 3322a9ae13aSMark Brown { 12000000, 32000, 1, 0xc }, 3332a9ae13aSMark Brown { 12000000, 44100, 1, 0x11 }, 3342a9ae13aSMark Brown { 12000000, 48000, 1, 0x0 }, 3352a9ae13aSMark Brown { 12000000, 88200, 1, 0x1f }, 3362a9ae13aSMark Brown { 12000000, 96000, 1, 0xe }, 3372a9ae13aSMark Brown }; 3382a9ae13aSMark Brown 3392a9ae13aSMark Brown static int wm8737_hw_params(struct snd_pcm_substream *substream, 3402a9ae13aSMark Brown struct snd_pcm_hw_params *params, 3412a9ae13aSMark Brown struct snd_soc_dai *dai) 3422a9ae13aSMark Brown { 343e6968a17SMark Brown struct snd_soc_codec *codec = dai->codec; 3442a9ae13aSMark Brown struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); 3452a9ae13aSMark Brown int i; 3462a9ae13aSMark Brown u16 clocking = 0; 3472a9ae13aSMark Brown u16 af = 0; 3482a9ae13aSMark Brown 3492a9ae13aSMark Brown for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 3502a9ae13aSMark Brown if (coeff_div[i].rate != params_rate(params)) 3512a9ae13aSMark Brown continue; 3522a9ae13aSMark Brown 3532a9ae13aSMark Brown if (coeff_div[i].mclk == wm8737->mclk) 3542a9ae13aSMark Brown break; 3552a9ae13aSMark Brown 3562a9ae13aSMark Brown if (coeff_div[i].mclk == wm8737->mclk * 2) { 3572a9ae13aSMark Brown clocking |= WM8737_CLKDIV2; 3582a9ae13aSMark Brown break; 3592a9ae13aSMark Brown } 3602a9ae13aSMark Brown } 3612a9ae13aSMark Brown 3622a9ae13aSMark Brown if (i == ARRAY_SIZE(coeff_div)) { 3632a9ae13aSMark Brown dev_err(codec->dev, "%dHz MCLK can't support %dHz\n", 3642a9ae13aSMark Brown wm8737->mclk, params_rate(params)); 3652a9ae13aSMark Brown return -EINVAL; 3662a9ae13aSMark Brown } 3672a9ae13aSMark Brown 3682a9ae13aSMark Brown clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); 3692a9ae13aSMark Brown 3702a9ae13aSMark Brown switch (params_format(params)) { 3712a9ae13aSMark Brown case SNDRV_PCM_FORMAT_S16_LE: 3722a9ae13aSMark Brown break; 3732a9ae13aSMark Brown case SNDRV_PCM_FORMAT_S20_3LE: 3742a9ae13aSMark Brown af |= 0x8; 3752a9ae13aSMark Brown break; 3762a9ae13aSMark Brown case SNDRV_PCM_FORMAT_S24_LE: 3772a9ae13aSMark Brown af |= 0x10; 3782a9ae13aSMark Brown break; 3792a9ae13aSMark Brown case SNDRV_PCM_FORMAT_S32_LE: 3802a9ae13aSMark Brown af |= 0x18; 3812a9ae13aSMark Brown break; 3822a9ae13aSMark Brown default: 3832a9ae13aSMark Brown return -EINVAL; 3842a9ae13aSMark Brown } 3852a9ae13aSMark Brown 3862a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); 3872a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_CLOCKING, 3882a9ae13aSMark Brown WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, 3892a9ae13aSMark Brown clocking); 3902a9ae13aSMark Brown 3912a9ae13aSMark Brown return 0; 3922a9ae13aSMark Brown } 3932a9ae13aSMark Brown 3942a9ae13aSMark Brown static int wm8737_set_dai_sysclk(struct snd_soc_dai *codec_dai, 3952a9ae13aSMark Brown int clk_id, unsigned int freq, int dir) 3962a9ae13aSMark Brown { 3972a9ae13aSMark Brown struct snd_soc_codec *codec = codec_dai->codec; 3982a9ae13aSMark Brown struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); 3992a9ae13aSMark Brown int i; 4002a9ae13aSMark Brown 4012a9ae13aSMark Brown for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 4022a9ae13aSMark Brown if (freq == coeff_div[i].mclk || 4032a9ae13aSMark Brown freq == coeff_div[i].mclk * 2) { 4042a9ae13aSMark Brown wm8737->mclk = freq; 4052a9ae13aSMark Brown return 0; 4062a9ae13aSMark Brown } 4072a9ae13aSMark Brown } 4082a9ae13aSMark Brown 4092a9ae13aSMark Brown dev_err(codec->dev, "MCLK rate %dHz not supported\n", freq); 4102a9ae13aSMark Brown 4112a9ae13aSMark Brown return -EINVAL; 4122a9ae13aSMark Brown } 4132a9ae13aSMark Brown 4142a9ae13aSMark Brown 4152a9ae13aSMark Brown static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, 4162a9ae13aSMark Brown unsigned int fmt) 4172a9ae13aSMark Brown { 4182a9ae13aSMark Brown struct snd_soc_codec *codec = codec_dai->codec; 4192a9ae13aSMark Brown u16 af = 0; 4202a9ae13aSMark Brown 4212a9ae13aSMark Brown switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 4222a9ae13aSMark Brown case SND_SOC_DAIFMT_CBM_CFM: 4232a9ae13aSMark Brown af |= WM8737_MS; 4242a9ae13aSMark Brown break; 4252a9ae13aSMark Brown case SND_SOC_DAIFMT_CBS_CFS: 4262a9ae13aSMark Brown break; 4272a9ae13aSMark Brown default: 4282a9ae13aSMark Brown return -EINVAL; 4292a9ae13aSMark Brown } 4302a9ae13aSMark Brown 4312a9ae13aSMark Brown switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 4322a9ae13aSMark Brown case SND_SOC_DAIFMT_I2S: 4332a9ae13aSMark Brown af |= 0x2; 4342a9ae13aSMark Brown break; 4352a9ae13aSMark Brown case SND_SOC_DAIFMT_RIGHT_J: 4362a9ae13aSMark Brown break; 4372a9ae13aSMark Brown case SND_SOC_DAIFMT_LEFT_J: 4382a9ae13aSMark Brown af |= 0x1; 4392a9ae13aSMark Brown break; 4402a9ae13aSMark Brown case SND_SOC_DAIFMT_DSP_A: 4412a9ae13aSMark Brown af |= 0x3; 4422a9ae13aSMark Brown break; 4432a9ae13aSMark Brown case SND_SOC_DAIFMT_DSP_B: 4442a9ae13aSMark Brown af |= 0x13; 4452a9ae13aSMark Brown break; 4462a9ae13aSMark Brown default: 4472a9ae13aSMark Brown return -EINVAL; 4482a9ae13aSMark Brown } 4492a9ae13aSMark Brown 4502a9ae13aSMark Brown switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 4512a9ae13aSMark Brown case SND_SOC_DAIFMT_NB_NF: 4522a9ae13aSMark Brown break; 4532a9ae13aSMark Brown case SND_SOC_DAIFMT_NB_IF: 4542a9ae13aSMark Brown af |= WM8737_LRP; 4552a9ae13aSMark Brown break; 4562a9ae13aSMark Brown default: 4572a9ae13aSMark Brown return -EINVAL; 4582a9ae13aSMark Brown } 4592a9ae13aSMark Brown 4602a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, 4612a9ae13aSMark Brown WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); 4622a9ae13aSMark Brown 4632a9ae13aSMark Brown return 0; 4642a9ae13aSMark Brown } 4652a9ae13aSMark Brown 4662a9ae13aSMark Brown static int wm8737_set_bias_level(struct snd_soc_codec *codec, 4672a9ae13aSMark Brown enum snd_soc_bias_level level) 4682a9ae13aSMark Brown { 4692a9ae13aSMark Brown struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); 4702a9ae13aSMark Brown int ret; 4712a9ae13aSMark Brown 4722a9ae13aSMark Brown switch (level) { 4732a9ae13aSMark Brown case SND_SOC_BIAS_ON: 4742a9ae13aSMark Brown break; 4752a9ae13aSMark Brown 4762a9ae13aSMark Brown case SND_SOC_BIAS_PREPARE: 4772a9ae13aSMark Brown /* VMID at 2*75k */ 4782a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, 4792a9ae13aSMark Brown WM8737_VMIDSEL_MASK, 0); 4802a9ae13aSMark Brown break; 4812a9ae13aSMark Brown 4822a9ae13aSMark Brown case SND_SOC_BIAS_STANDBY: 4832a9ae13aSMark Brown if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 4842a9ae13aSMark Brown ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), 4852a9ae13aSMark Brown wm8737->supplies); 4862a9ae13aSMark Brown if (ret != 0) { 4872a9ae13aSMark Brown dev_err(codec->dev, 4882a9ae13aSMark Brown "Failed to enable supplies: %d\n", 4892a9ae13aSMark Brown ret); 4902a9ae13aSMark Brown return ret; 4912a9ae13aSMark Brown } 4922a9ae13aSMark Brown 493*3ef8ac0dSMark Brown regcache_sync(wm8737->regmap); 4942a9ae13aSMark Brown 4952a9ae13aSMark Brown /* Fast VMID ramp at 2*2.5k */ 4962a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, 4972a9ae13aSMark Brown WM8737_VMIDSEL_MASK, 0x4); 4982a9ae13aSMark Brown 4992a9ae13aSMark Brown /* Bring VMID up */ 5002a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, 5012a9ae13aSMark Brown WM8737_VMID_MASK | 5022a9ae13aSMark Brown WM8737_VREF_MASK, 5032a9ae13aSMark Brown WM8737_VMID_MASK | 5042a9ae13aSMark Brown WM8737_VREF_MASK); 5052a9ae13aSMark Brown 5062a9ae13aSMark Brown msleep(500); 5072a9ae13aSMark Brown } 5082a9ae13aSMark Brown 5092a9ae13aSMark Brown /* VMID at 2*300k */ 5102a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, 5112a9ae13aSMark Brown WM8737_VMIDSEL_MASK, 2); 5122a9ae13aSMark Brown 5132a9ae13aSMark Brown break; 5142a9ae13aSMark Brown 5152a9ae13aSMark Brown case SND_SOC_BIAS_OFF: 5162a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, 5172a9ae13aSMark Brown WM8737_VMID_MASK | WM8737_VREF_MASK, 0); 5182a9ae13aSMark Brown 5192a9ae13aSMark Brown regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), 5202a9ae13aSMark Brown wm8737->supplies); 5212a9ae13aSMark Brown break; 5222a9ae13aSMark Brown } 5232a9ae13aSMark Brown 5242a9ae13aSMark Brown codec->dapm.bias_level = level; 5252a9ae13aSMark Brown return 0; 5262a9ae13aSMark Brown } 5272a9ae13aSMark Brown 5282a9ae13aSMark Brown #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 5292a9ae13aSMark Brown 5302a9ae13aSMark Brown #define WM8737_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 5312a9ae13aSMark Brown SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 5322a9ae13aSMark Brown 53385e7652dSLars-Peter Clausen static const struct snd_soc_dai_ops wm8737_dai_ops = { 5342a9ae13aSMark Brown .hw_params = wm8737_hw_params, 5352a9ae13aSMark Brown .set_sysclk = wm8737_set_dai_sysclk, 5362a9ae13aSMark Brown .set_fmt = wm8737_set_dai_fmt, 5372a9ae13aSMark Brown }; 5382a9ae13aSMark Brown 5392a9ae13aSMark Brown static struct snd_soc_dai_driver wm8737_dai = { 5402a9ae13aSMark Brown .name = "wm8737", 5412a9ae13aSMark Brown .capture = { 5422a9ae13aSMark Brown .stream_name = "Capture", 5432a9ae13aSMark Brown .channels_min = 2, /* Mono modes not yet supported */ 5442a9ae13aSMark Brown .channels_max = 2, 5452a9ae13aSMark Brown .rates = WM8737_RATES, 5462a9ae13aSMark Brown .formats = WM8737_FORMATS, 5472a9ae13aSMark Brown }, 5482a9ae13aSMark Brown .ops = &wm8737_dai_ops, 5492a9ae13aSMark Brown }; 5502a9ae13aSMark Brown 5512a9ae13aSMark Brown #ifdef CONFIG_PM 55284b315eeSLars-Peter Clausen static int wm8737_suspend(struct snd_soc_codec *codec) 5532a9ae13aSMark Brown { 5542a9ae13aSMark Brown wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); 5552a9ae13aSMark Brown return 0; 5562a9ae13aSMark Brown } 5572a9ae13aSMark Brown 5582a9ae13aSMark Brown static int wm8737_resume(struct snd_soc_codec *codec) 5592a9ae13aSMark Brown { 5602a9ae13aSMark Brown wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 5612a9ae13aSMark Brown return 0; 5622a9ae13aSMark Brown } 5632a9ae13aSMark Brown #else 5642a9ae13aSMark Brown #define wm8737_suspend NULL 5652a9ae13aSMark Brown #define wm8737_resume NULL 5662a9ae13aSMark Brown #endif 5672a9ae13aSMark Brown 5682a9ae13aSMark Brown static int wm8737_probe(struct snd_soc_codec *codec) 5692a9ae13aSMark Brown { 5702a9ae13aSMark Brown struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); 5714f69bb31SMark Brown int ret; 5722a9ae13aSMark Brown 573*3ef8ac0dSMark Brown ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP); 5742a9ae13aSMark Brown if (ret != 0) { 5752a9ae13aSMark Brown dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 5762a9ae13aSMark Brown return ret; 5772a9ae13aSMark Brown } 5782a9ae13aSMark Brown 5792a9ae13aSMark Brown ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), 5802a9ae13aSMark Brown wm8737->supplies); 5812a9ae13aSMark Brown if (ret != 0) { 5822a9ae13aSMark Brown dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); 5832a9ae13aSMark Brown goto err_get; 5842a9ae13aSMark Brown } 5852a9ae13aSMark Brown 5862a9ae13aSMark Brown ret = wm8737_reset(codec); 5872a9ae13aSMark Brown if (ret < 0) { 5882a9ae13aSMark Brown dev_err(codec->dev, "Failed to issue reset\n"); 5892a9ae13aSMark Brown goto err_enable; 5902a9ae13aSMark Brown } 5912a9ae13aSMark Brown 5922a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, 5932a9ae13aSMark Brown WM8737_LVU); 5942a9ae13aSMark Brown snd_soc_update_bits(codec, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, 5952a9ae13aSMark Brown WM8737_RVU); 5962a9ae13aSMark Brown 5972a9ae13aSMark Brown wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 5982a9ae13aSMark Brown 5992a9ae13aSMark Brown /* Bias level configuration will have done an extra enable */ 6002a9ae13aSMark Brown regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); 6012a9ae13aSMark Brown 602022658beSLiam Girdwood snd_soc_add_codec_controls(codec, wm8737_snd_controls, 6032a9ae13aSMark Brown ARRAY_SIZE(wm8737_snd_controls)); 6042a9ae13aSMark Brown wm8737_add_widgets(codec); 6052a9ae13aSMark Brown 6062a9ae13aSMark Brown return 0; 6072a9ae13aSMark Brown 6082a9ae13aSMark Brown err_enable: 6092a9ae13aSMark Brown regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); 6102a9ae13aSMark Brown err_get: 6112a9ae13aSMark Brown return ret; 6122a9ae13aSMark Brown } 6132a9ae13aSMark Brown 6142a9ae13aSMark Brown static int wm8737_remove(struct snd_soc_codec *codec) 6152a9ae13aSMark Brown { 6162a9ae13aSMark Brown wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); 6172a9ae13aSMark Brown return 0; 6182a9ae13aSMark Brown } 6192a9ae13aSMark Brown 6202a9ae13aSMark Brown static struct snd_soc_codec_driver soc_codec_dev_wm8737 = { 6212a9ae13aSMark Brown .probe = wm8737_probe, 6222a9ae13aSMark Brown .remove = wm8737_remove, 6232a9ae13aSMark Brown .suspend = wm8737_suspend, 6242a9ae13aSMark Brown .resume = wm8737_resume, 6252a9ae13aSMark Brown .set_bias_level = wm8737_set_bias_level, 6262a9ae13aSMark Brown }; 6272a9ae13aSMark Brown 62853a5a83dSMark Brown static const struct of_device_id wm8737_of_match[] = { 62953a5a83dSMark Brown { .compatible = "wlf,wm8737", }, 63053a5a83dSMark Brown { } 63153a5a83dSMark Brown }; 63253a5a83dSMark Brown 63353a5a83dSMark Brown MODULE_DEVICE_TABLE(of, wm8737_of_match); 63453a5a83dSMark Brown 635*3ef8ac0dSMark Brown static const struct regmap_config wm8737_regmap = { 636*3ef8ac0dSMark Brown .reg_bits = 7, 637*3ef8ac0dSMark Brown .val_bits = 9, 638*3ef8ac0dSMark Brown .max_register = WM8737_MAX_REGISTER, 639*3ef8ac0dSMark Brown 640*3ef8ac0dSMark Brown .reg_defaults = wm8737_reg_defaults, 641*3ef8ac0dSMark Brown .num_reg_defaults = ARRAY_SIZE(wm8737_reg_defaults), 642*3ef8ac0dSMark Brown .cache_type = REGCACHE_RBTREE, 643*3ef8ac0dSMark Brown 644*3ef8ac0dSMark Brown .volatile_reg = wm8737_volatile, 645*3ef8ac0dSMark Brown }; 646*3ef8ac0dSMark Brown 6472a9ae13aSMark Brown #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 6482a9ae13aSMark Brown static __devinit int wm8737_i2c_probe(struct i2c_client *i2c, 6492a9ae13aSMark Brown const struct i2c_device_id *id) 6502a9ae13aSMark Brown { 6512a9ae13aSMark Brown struct wm8737_priv *wm8737; 6524f69bb31SMark Brown int ret, i; 6532a9ae13aSMark Brown 65465fdd9bfSMark Brown wm8737 = devm_kzalloc(&i2c->dev, sizeof(struct wm8737_priv), 65565fdd9bfSMark Brown GFP_KERNEL); 6562a9ae13aSMark Brown if (wm8737 == NULL) 6572a9ae13aSMark Brown return -ENOMEM; 6582a9ae13aSMark Brown 6594f69bb31SMark Brown for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) 6604f69bb31SMark Brown wm8737->supplies[i].supply = wm8737_supply_names[i]; 6614f69bb31SMark Brown 6624f69bb31SMark Brown ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8737->supplies), 6634f69bb31SMark Brown wm8737->supplies); 6644f69bb31SMark Brown if (ret != 0) { 6654f69bb31SMark Brown dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); 6664f69bb31SMark Brown return ret; 6674f69bb31SMark Brown } 6684f69bb31SMark Brown 669*3ef8ac0dSMark Brown wm8737->regmap = devm_regmap_init_i2c(i2c, &wm8737_regmap); 670*3ef8ac0dSMark Brown if (IS_ERR(wm8737->regmap)) 671*3ef8ac0dSMark Brown return PTR_ERR(wm8737->regmap); 672*3ef8ac0dSMark Brown 6732a9ae13aSMark Brown i2c_set_clientdata(i2c, wm8737); 6742a9ae13aSMark Brown 6752a9ae13aSMark Brown ret = snd_soc_register_codec(&i2c->dev, 6762a9ae13aSMark Brown &soc_codec_dev_wm8737, &wm8737_dai, 1); 67765fdd9bfSMark Brown 6782a9ae13aSMark Brown return ret; 6792a9ae13aSMark Brown 6802a9ae13aSMark Brown } 6812a9ae13aSMark Brown 6822a9ae13aSMark Brown static __devexit int wm8737_i2c_remove(struct i2c_client *client) 6832a9ae13aSMark Brown { 6842a9ae13aSMark Brown snd_soc_unregister_codec(&client->dev); 68565fdd9bfSMark Brown 6862a9ae13aSMark Brown return 0; 6872a9ae13aSMark Brown } 6882a9ae13aSMark Brown 6892a9ae13aSMark Brown static const struct i2c_device_id wm8737_i2c_id[] = { 6902a9ae13aSMark Brown { "wm8737", 0 }, 6912a9ae13aSMark Brown { } 6922a9ae13aSMark Brown }; 6932a9ae13aSMark Brown MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); 6942a9ae13aSMark Brown 6952a9ae13aSMark Brown static struct i2c_driver wm8737_i2c_driver = { 6962a9ae13aSMark Brown .driver = { 6972a9ae13aSMark Brown .name = "wm8737", 6982a9ae13aSMark Brown .owner = THIS_MODULE, 69953a5a83dSMark Brown .of_match_table = wm8737_of_match, 7002a9ae13aSMark Brown }, 7012a9ae13aSMark Brown .probe = wm8737_i2c_probe, 7022a9ae13aSMark Brown .remove = __devexit_p(wm8737_i2c_remove), 7032a9ae13aSMark Brown .id_table = wm8737_i2c_id, 7042a9ae13aSMark Brown }; 7052a9ae13aSMark Brown #endif 7062a9ae13aSMark Brown 7072a9ae13aSMark Brown #if defined(CONFIG_SPI_MASTER) 7082a9ae13aSMark Brown static int __devinit wm8737_spi_probe(struct spi_device *spi) 7092a9ae13aSMark Brown { 7102a9ae13aSMark Brown struct wm8737_priv *wm8737; 7114f69bb31SMark Brown int ret, i; 7122a9ae13aSMark Brown 71365fdd9bfSMark Brown wm8737 = devm_kzalloc(&spi->dev, sizeof(struct wm8737_priv), 71465fdd9bfSMark Brown GFP_KERNEL); 7152a9ae13aSMark Brown if (wm8737 == NULL) 7162a9ae13aSMark Brown return -ENOMEM; 7172a9ae13aSMark Brown 7184f69bb31SMark Brown for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) 7194f69bb31SMark Brown wm8737->supplies[i].supply = wm8737_supply_names[i]; 7204f69bb31SMark Brown 7214f69bb31SMark Brown ret = devm_regulator_bulk_get(&spi->dev, ARRAY_SIZE(wm8737->supplies), 7224f69bb31SMark Brown wm8737->supplies); 7234f69bb31SMark Brown if (ret != 0) { 7244f69bb31SMark Brown dev_err(&spi->dev, "Failed to request supplies: %d\n", ret); 7254f69bb31SMark Brown return ret; 7264f69bb31SMark Brown } 7274f69bb31SMark Brown 728*3ef8ac0dSMark Brown wm8737->regmap = devm_regmap_init_spi(spi, &wm8737_regmap); 729*3ef8ac0dSMark Brown if (IS_ERR(wm8737->regmap)) 730*3ef8ac0dSMark Brown return PTR_ERR(wm8737->regmap); 731*3ef8ac0dSMark Brown 7322a9ae13aSMark Brown spi_set_drvdata(spi, wm8737); 7332a9ae13aSMark Brown 7342a9ae13aSMark Brown ret = snd_soc_register_codec(&spi->dev, 7352a9ae13aSMark Brown &soc_codec_dev_wm8737, &wm8737_dai, 1); 73665fdd9bfSMark Brown 7372a9ae13aSMark Brown return ret; 7382a9ae13aSMark Brown } 7392a9ae13aSMark Brown 7402a9ae13aSMark Brown static int __devexit wm8737_spi_remove(struct spi_device *spi) 7412a9ae13aSMark Brown { 7422a9ae13aSMark Brown snd_soc_unregister_codec(&spi->dev); 74365fdd9bfSMark Brown 7442a9ae13aSMark Brown return 0; 7452a9ae13aSMark Brown } 7462a9ae13aSMark Brown 7472a9ae13aSMark Brown static struct spi_driver wm8737_spi_driver = { 7482a9ae13aSMark Brown .driver = { 7492a9ae13aSMark Brown .name = "wm8737", 7502a9ae13aSMark Brown .owner = THIS_MODULE, 75153a5a83dSMark Brown .of_match_table = wm8737_of_match, 7522a9ae13aSMark Brown }, 7532a9ae13aSMark Brown .probe = wm8737_spi_probe, 7542a9ae13aSMark Brown .remove = __devexit_p(wm8737_spi_remove), 7552a9ae13aSMark Brown }; 7562a9ae13aSMark Brown #endif /* CONFIG_SPI_MASTER */ 7572a9ae13aSMark Brown 7582a9ae13aSMark Brown static int __init wm8737_modinit(void) 7592a9ae13aSMark Brown { 7602a9ae13aSMark Brown int ret; 7612a9ae13aSMark Brown #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 7622a9ae13aSMark Brown ret = i2c_add_driver(&wm8737_i2c_driver); 7632a9ae13aSMark Brown if (ret != 0) { 7642a9ae13aSMark Brown printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", 7652a9ae13aSMark Brown ret); 7662a9ae13aSMark Brown } 7672a9ae13aSMark Brown #endif 7682a9ae13aSMark Brown #if defined(CONFIG_SPI_MASTER) 7692a9ae13aSMark Brown ret = spi_register_driver(&wm8737_spi_driver); 7702a9ae13aSMark Brown if (ret != 0) { 7712a9ae13aSMark Brown printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", 7722a9ae13aSMark Brown ret); 7732a9ae13aSMark Brown } 7742a9ae13aSMark Brown #endif 7752a9ae13aSMark Brown return 0; 7762a9ae13aSMark Brown } 7772a9ae13aSMark Brown module_init(wm8737_modinit); 7782a9ae13aSMark Brown 7792a9ae13aSMark Brown static void __exit wm8737_exit(void) 7802a9ae13aSMark Brown { 7812a9ae13aSMark Brown #if defined(CONFIG_SPI_MASTER) 7822a9ae13aSMark Brown spi_unregister_driver(&wm8737_spi_driver); 7832a9ae13aSMark Brown #endif 7842a9ae13aSMark Brown #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 7852a9ae13aSMark Brown i2c_del_driver(&wm8737_i2c_driver); 7862a9ae13aSMark Brown #endif 7872a9ae13aSMark Brown } 7882a9ae13aSMark Brown module_exit(wm8737_exit); 7892a9ae13aSMark Brown 7902a9ae13aSMark Brown MODULE_DESCRIPTION("ASoC WM8737 driver"); 7912a9ae13aSMark Brown MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 7922a9ae13aSMark Brown MODULE_LICENSE("GPL"); 793