/* * wm8995.c -- WM8995 ALSA SoC Audio driver * * Copyright 2010 Wolfson Microelectronics plc * * Author: Dimitris Papastamos * * Based on wm8994.c and wm_hubs.c by Mark Brown * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wm8995.h" static const u16 wm8995_reg_defs[WM8995_MAX_REGISTER + 1] = { [0] = 0x8995, [5] = 0x0100, [16] = 0x000b, [17] = 0x000b, [24] = 0x02c0, [25] = 0x02c0, [26] = 0x02c0, [27] = 0x02c0, [28] = 0x000f, [32] = 0x0005, [33] = 0x0005, [40] = 0x0003, [41] = 0x0013, [48] = 0x0004, [56] = 0x09f8, [64] = 0x1f25, [69] = 0x0004, [82] = 0xaaaa, [84] = 0x2a2a, [146] = 0x0060, [256] = 0x0002, [257] = 0x8004, [520] = 0x0010, [528] = 0x0083, [529] = 0x0083, [548] = 0x0c80, [580] = 0x0c80, [768] = 0x4050, [769] = 0x4000, [771] = 0x0040, [772] = 0x0040, [773] = 0x0040, [774] = 0x0004, [775] = 0x0100, [784] = 0x4050, [785] = 0x4000, [787] = 0x0040, [788] = 0x0040, [789] = 0x0040, [1024] = 0x00c0, [1025] = 0x00c0, [1026] = 0x00c0, [1027] = 0x00c0, [1028] = 0x00c0, [1029] = 0x00c0, [1030] = 0x00c0, [1031] = 0x00c0, [1056] = 0x0200, [1057] = 0x0010, [1058] = 0x0200, [1059] = 0x0010, [1088] = 0x0098, [1089] = 0x0845, [1104] = 0x0098, [1105] = 0x0845, [1152] = 0x6318, [1153] = 0x6300, [1154] = 0x0fca, [1155] = 0x0400, [1156] = 0x00d8, [1157] = 0x1eb5, [1158] = 0xf145, [1159] = 0x0b75, [1160] = 0x01c5, [1161] = 0x1c58, [1162] = 0xf373, [1163] = 0x0a54, [1164] = 0x0558, [1165] = 0x168e, [1166] = 0xf829, [1167] = 0x07ad, [1168] = 0x1103, [1169] = 0x0564, [1170] = 0x0559, [1171] = 0x4000, [1184] = 0x6318, [1185] = 0x6300, [1186] = 0x0fca, [1187] = 0x0400, [1188] = 0x00d8, [1189] = 0x1eb5, [1190] = 0xf145, [1191] = 0x0b75, [1192] = 0x01c5, [1193] = 0x1c58, [1194] = 0xf373, [1195] = 0x0a54, [1196] = 0x0558, [1197] = 0x168e, [1198] = 0xf829, [1199] = 0x07ad, [1200] = 0x1103, [1201] = 0x0564, [1202] = 0x0559, [1203] = 0x4000, [1280] = 0x00c0, [1281] = 0x00c0, [1282] = 0x00c0, [1283] = 0x00c0, [1312] = 0x0200, [1313] = 0x0010, [1344] = 0x0098, [1345] = 0x0845, [1408] = 0x6318, [1409] = 0x6300, [1410] = 0x0fca, [1411] = 0x0400, [1412] = 0x00d8, [1413] = 0x1eb5, [1414] = 0xf145, [1415] = 0x0b75, [1416] = 0x01c5, [1417] = 0x1c58, [1418] = 0xf373, [1419] = 0x0a54, [1420] = 0x0558, [1421] = 0x168e, [1422] = 0xf829, [1423] = 0x07ad, [1424] = 0x1103, [1425] = 0x0564, [1426] = 0x0559, [1427] = 0x4000, [1568] = 0x0002, [1792] = 0xa100, [1793] = 0xa101, [1794] = 0xa101, [1795] = 0xa101, [1796] = 0xa101, [1797] = 0xa101, [1798] = 0xa101, [1799] = 0xa101, [1800] = 0xa101, [1801] = 0xa101, [1802] = 0xa101, [1803] = 0xa101, [1804] = 0xa101, [1805] = 0xa101, [1825] = 0x0055, [1848] = 0x3fff, [1849] = 0x1fff, [2049] = 0x0001, [2050] = 0x0069, [2056] = 0x0002, [2057] = 0x0003, [2058] = 0x0069, [12288] = 0x0001, [12289] = 0x0001, [12291] = 0x0006, [12292] = 0x0040, [12293] = 0x0001, [12294] = 0x000f, [12295] = 0x0006, [12296] = 0x0001, [12297] = 0x0003, [12298] = 0x0104, [12300] = 0x0060, [12301] = 0x0011, [12302] = 0x0401, [12304] = 0x0050, [12305] = 0x0003, [12306] = 0x0100, [12308] = 0x0051, [12309] = 0x0003, [12310] = 0x0104, [12311] = 0x000a, [12312] = 0x0060, [12313] = 0x003b, [12314] = 0x0502, [12315] = 0x0100, [12316] = 0x2fff, [12320] = 0x2fff, [12324] = 0x2fff, [12328] = 0x2fff, [12332] = 0x2fff, [12336] = 0x2fff, [12340] = 0x2fff, [12344] = 0x2fff, [12348] = 0x2fff, [12352] = 0x0001, [12353] = 0x0001, [12355] = 0x0006, [12356] = 0x0040, [12357] = 0x0001, [12358] = 0x000f, [12359] = 0x0006, [12360] = 0x0001, [12361] = 0x0003, [12362] = 0x0104, [12364] = 0x0060, [12365] = 0x0011, [12366] = 0x0401, [12368] = 0x0050, [12369] = 0x0003, [12370] = 0x0100, [12372] = 0x0060, [12373] = 0x003b, [12374] = 0x0502, [12375] = 0x0100, [12376] = 0x2fff, [12380] = 0x2fff, [12384] = 0x2fff, [12388] = 0x2fff, [12392] = 0x2fff, [12396] = 0x2fff, [12400] = 0x2fff, [12404] = 0x2fff, [12408] = 0x2fff, [12412] = 0x2fff, [12416] = 0x0001, [12417] = 0x0001, [12419] = 0x0006, [12420] = 0x0040, [12421] = 0x0001, [12422] = 0x000f, [12423] = 0x0006, [12424] = 0x0001, [12425] = 0x0003, [12426] = 0x0106, [12428] = 0x0061, [12429] = 0x0011, [12430] = 0x0401, [12432] = 0x0050, [12433] = 0x0003, [12434] = 0x0102, [12436] = 0x0051, [12437] = 0x0003, [12438] = 0x0106, [12439] = 0x000a, [12440] = 0x0061, [12441] = 0x003b, [12442] = 0x0502, [12443] = 0x0100, [12444] = 0x2fff, [12448] = 0x2fff, [12452] = 0x2fff, [12456] = 0x2fff, [12460] = 0x2fff, [12464] = 0x2fff, [12468] = 0x2fff, [12472] = 0x2fff, [12476] = 0x2fff, [12480] = 0x0001, [12481] = 0x0001, [12483] = 0x0006, [12484] = 0x0040, [12485] = 0x0001, [12486] = 0x000f, [12487] = 0x0006, [12488] = 0x0001, [12489] = 0x0003, [12490] = 0x0106, [12492] = 0x0061, [12493] = 0x0011, [12494] = 0x0401, [12496] = 0x0050, [12497] = 0x0003, [12498] = 0x0102, [12500] = 0x0061, [12501] = 0x003b, [12502] = 0x0502, [12503] = 0x0100, [12504] = 0x2fff, [12508] = 0x2fff, [12512] = 0x2fff, [12516] = 0x2fff, [12520] = 0x2fff, [12524] = 0x2fff, [12528] = 0x2fff, [12532] = 0x2fff, [12536] = 0x2fff, [12540] = 0x2fff, [12544] = 0x0060, [12546] = 0x0601, [12548] = 0x0050, [12550] = 0x0100, [12552] = 0x0001, [12554] = 0x0104, [12555] = 0x0100, [12556] = 0x2fff, [12560] = 0x2fff, [12564] = 0x2fff, [12568] = 0x2fff, [12572] = 0x2fff, [12576] = 0x2fff, [12580] = 0x2fff, [12584] = 0x2fff, [12588] = 0x2fff, [12592] = 0x2fff, [12596] = 0x2fff, [12600] = 0x2fff, [12604] = 0x2fff, [12608] = 0x0061, [12610] = 0x0601, [12612] = 0x0050, [12614] = 0x0102, [12616] = 0x0001, [12618] = 0x0106, [12619] = 0x0100, [12620] = 0x2fff, [12624] = 0x2fff, [12628] = 0x2fff, [12632] = 0x2fff, [12636] = 0x2fff, [12640] = 0x2fff, [12644] = 0x2fff, [12648] = 0x2fff, [12652] = 0x2fff, [12656] = 0x2fff, [12660] = 0x2fff, [12664] = 0x2fff, [12668] = 0x2fff, [12672] = 0x0060, [12674] = 0x0601, [12676] = 0x0061, [12678] = 0x0601, [12680] = 0x0050, [12682] = 0x0300, [12684] = 0x0001, [12686] = 0x0304, [12688] = 0x0040, [12690] = 0x000f, [12692] = 0x0001, [12695] = 0x0100 }; struct fll_config { int src; int in; int out; }; struct wm8995_priv { enum snd_soc_control_type control_type; int sysclk[2]; int mclk[2]; int aifclk[2]; struct fll_config fll[2], fll_suspend[2]; }; static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0); static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0); static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0); static const char *in1l_text[] = { "Differential", "Single-ended IN1LN", "Single-ended IN1LP" }; static const SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL, 2, in1l_text); static const char *in1r_text[] = { "Differential", "Single-ended IN1RN", "Single-ended IN1RP" }; static const SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL, 0, in1r_text); static const char *dmic_src_text[] = { "DMICDAT1", "DMICDAT2", "DMICDAT3" }; static const SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5, 8, dmic_src_text); static const SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5, 6, dmic_src_text); static const struct snd_kcontrol_new wm8995_snd_controls[] = { SOC_DOUBLE_R_TLV("DAC1 Volume", WM8995_DAC1_LEFT_VOLUME, WM8995_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R("DAC1 Switch", WM8995_DAC1_LEFT_VOLUME, WM8995_DAC1_RIGHT_VOLUME, 9, 1, 1), SOC_DOUBLE_R_TLV("DAC2 Volume", WM8995_DAC2_LEFT_VOLUME, WM8995_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R("DAC2 Switch", WM8995_DAC2_LEFT_VOLUME, WM8995_DAC2_RIGHT_VOLUME, 9, 1, 1), SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8995_AIF1_DAC1_LEFT_VOLUME, WM8995_AIF1_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8995_AIF1_DAC2_LEFT_VOLUME, WM8995_AIF1_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("AIF2DAC Volume", WM8995_AIF2_DAC_LEFT_VOLUME, WM8995_AIF2_DAC_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("IN1LR Volume", WM8995_LEFT_LINE_INPUT_1_VOLUME, WM8995_RIGHT_LINE_INPUT_1_VOLUME, 0, 31, 0, in1lr_pga_tlv), SOC_SINGLE_TLV("IN1L Boost", WM8995_LEFT_LINE_INPUT_CONTROL, 4, 3, 0, in1l_boost_tlv), SOC_ENUM("IN1L Mode", in1l_enum), SOC_ENUM("IN1R Mode", in1r_enum), SOC_ENUM("DMIC1 SRC", dmic_src1_enum), SOC_ENUM("DMIC2 SRC", dmic_src2_enum), SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8995_DAC1_MIXER_VOLUMES, 0, 5, 24, 0, sidetone_tlv), SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8995_DAC2_MIXER_VOLUMES, 0, 5, 24, 0, sidetone_tlv), SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8995_AIF1_ADC1_LEFT_VOLUME, WM8995_AIF1_ADC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("AIF1ADC2 Volume", WM8995_AIF1_ADC2_LEFT_VOLUME, WM8995_AIF1_ADC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), SOC_DOUBLE_R_TLV("AIF2ADC Volume", WM8995_AIF2_ADC_LEFT_VOLUME, WM8995_AIF2_ADC_RIGHT_VOLUME, 0, 96, 0, digital_tlv) }; static void wm8995_update_class_w(struct snd_soc_codec *codec) { int enable = 1; int source = 0; /* GCC flow analysis can't track enable */ int reg, reg_r; /* We also need the same setting for L/R and only one path */ reg = snd_soc_read(codec, WM8995_DAC1_LEFT_MIXER_ROUTING); switch (reg) { case WM8995_AIF2DACL_TO_DAC1L: dev_dbg(codec->dev, "Class W source AIF2DAC\n"); source = 2 << WM8995_CP_DYN_SRC_SEL_SHIFT; break; case WM8995_AIF1DAC2L_TO_DAC1L: dev_dbg(codec->dev, "Class W source AIF1DAC2\n"); source = 1 << WM8995_CP_DYN_SRC_SEL_SHIFT; break; case WM8995_AIF1DAC1L_TO_DAC1L: dev_dbg(codec->dev, "Class W source AIF1DAC1\n"); source = 0 << WM8995_CP_DYN_SRC_SEL_SHIFT; break; default: dev_dbg(codec->dev, "DAC mixer setting: %x\n", reg); enable = 0; break; } reg_r = snd_soc_read(codec, WM8995_DAC1_RIGHT_MIXER_ROUTING); if (reg_r != reg) { dev_dbg(codec->dev, "Left and right DAC mixers different\n"); enable = 0; } if (enable) { dev_dbg(codec->dev, "Class W enabled\n"); snd_soc_update_bits(codec, WM8995_CLASS_W_1, WM8995_CP_DYN_PWR_MASK | WM8995_CP_DYN_SRC_SEL_MASK, source | WM8995_CP_DYN_PWR); } else { dev_dbg(codec->dev, "Class W disabled\n"); snd_soc_update_bits(codec, WM8995_CLASS_W_1, WM8995_CP_DYN_PWR_MASK, 0); } } static int check_clk_sys(struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink) { unsigned int reg; const char *clk; reg = snd_soc_read(source->codec, WM8995_CLOCKING_1); /* Check what we're currently using for CLK_SYS */ if (reg & WM8995_SYSCLK_SRC) clk = "AIF2CLK"; else clk = "AIF1CLK"; return !strcmp(source->name, clk); } static int wm8995_put_class_w(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_dapm_widget *w; struct snd_soc_codec *codec; int ret; w = snd_kcontrol_chip(kcontrol); codec = w->codec; ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol); wm8995_update_class_w(codec); return ret; } static int hp_supply_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec; struct wm8995_priv *wm8995; codec = w->codec; wm8995 = snd_soc_codec_get_drvdata(codec); switch (event) { case SND_SOC_DAPM_PRE_PMU: /* Enable the headphone amp */ snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, WM8995_HPOUT1L_ENA_MASK | WM8995_HPOUT1R_ENA_MASK, WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA); /* Enable the second stage */ snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, WM8995_HPOUT1L_DLY_MASK | WM8995_HPOUT1R_DLY_MASK, WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY); break; case SND_SOC_DAPM_PRE_PMD: snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1, WM8995_CP_ENA_MASK, 0); break; } return 0; } static void dc_servo_cmd(struct snd_soc_codec *codec, unsigned int reg, unsigned int val, unsigned int mask) { int timeout = 10; dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n", __func__, reg, val, mask); snd_soc_write(codec, reg, val); while (timeout--) { msleep(10); val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0); if ((val & mask) == mask) return; } dev_err(codec->dev, "Timed out waiting for DC Servo\n"); } static int hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec; unsigned int reg; codec = w->codec; reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1); switch (event) { case SND_SOC_DAPM_POST_PMU: snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1, WM8995_CP_ENA_MASK, WM8995_CP_ENA); msleep(5); snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, WM8995_HPOUT1L_ENA_MASK | WM8995_HPOUT1R_ENA_MASK, WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA); udelay(20); reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY; snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg); snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 | WM8995_DCS_ENA_CHAN_1); dc_servo_cmd(codec, WM8995_DC_SERVO_2, WM8995_DCS_TRIG_STARTUP_0 | WM8995_DCS_TRIG_STARTUP_1, WM8995_DCS_TRIG_DAC_WR_0 | WM8995_DCS_TRIG_DAC_WR_1); reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT | WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT; snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg); break; case SND_SOC_DAPM_PRE_PMD: snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, WM8995_HPOUT1L_OUTP_MASK | WM8995_HPOUT1R_OUTP_MASK | WM8995_HPOUT1L_RMV_SHORT_MASK | WM8995_HPOUT1R_RMV_SHORT_MASK, 0); snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, WM8995_HPOUT1L_DLY_MASK | WM8995_HPOUT1R_DLY_MASK, 0); snd_soc_write(codec, WM8995_DC_SERVO_1, 0); snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, WM8995_HPOUT1L_ENA_MASK | WM8995_HPOUT1R_ENA_MASK, 0); break; } return 0; } static int configure_aif_clock(struct snd_soc_codec *codec, int aif) { struct wm8995_priv *wm8995; int rate; int reg1 = 0; int offset; wm8995 = snd_soc_codec_get_drvdata(codec); if (aif) offset = 4; else offset = 0; switch (wm8995->sysclk[aif]) { case WM8995_SYSCLK_MCLK1: rate = wm8995->mclk[0]; break; case WM8995_SYSCLK_MCLK2: reg1 |= 0x8; rate = wm8995->mclk[1]; break; case WM8995_SYSCLK_FLL1: reg1 |= 0x10; rate = wm8995->fll[0].out; break; case WM8995_SYSCLK_FLL2: reg1 |= 0x18; rate = wm8995->fll[1].out; break; default: return -EINVAL; } if (rate >= 13500000) { rate /= 2; reg1 |= WM8995_AIF1CLK_DIV; dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n", aif + 1, rate); } wm8995->aifclk[aif] = rate; snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset, WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK, reg1); return 0; } static int configure_clock(struct snd_soc_codec *codec) { struct wm8995_priv *wm8995; int old, new; wm8995 = snd_soc_codec_get_drvdata(codec); /* Bring up the AIF clocks first */ configure_aif_clock(codec, 0); configure_aif_clock(codec, 1); /* * Then switch CLK_SYS over to the higher of them; a change * can only happen as a result of a clocking change which can * only be made outside of DAPM so we can safely redo the * clocking. */ /* If they're equal it doesn't matter which is used */ if (wm8995->aifclk[0] == wm8995->aifclk[1]) return 0; if (wm8995->aifclk[0] < wm8995->aifclk[1]) new = WM8995_SYSCLK_SRC; else new = 0; old = snd_soc_read(codec, WM8995_CLOCKING_1) & WM8995_SYSCLK_SRC; /* If there's no change then we're done. */ if (old == new) return 0; snd_soc_update_bits(codec, WM8995_CLOCKING_1, WM8995_SYSCLK_SRC_MASK, new); snd_soc_dapm_sync(&codec->dapm); return 0; } static int clk_sys_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec; codec = w->codec; switch (event) { case SND_SOC_DAPM_PRE_PMU: return configure_clock(codec); case SND_SOC_DAPM_POST_PMD: configure_clock(codec); break; } return 0; } static const char *sidetone_text[] = { "ADC/DMIC1", "DMIC2", }; static const struct soc_enum sidetone1_enum = SOC_ENUM_SINGLE(WM8995_SIDETONE, 0, 2, sidetone_text); static const struct snd_kcontrol_new sidetone1_mux = SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum); static const struct soc_enum sidetone2_enum = SOC_ENUM_SINGLE(WM8995_SIDETONE, 1, 2, sidetone_text); static const struct snd_kcontrol_new sidetone2_mux = SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum); static const struct snd_kcontrol_new aif1adc1l_mix[] = { SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new aif1adc1r_mix[] = { SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new aif1adc2l_mix[] = { SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new aif1adc2r_mix[] = { SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dac1l_mix[] = { WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, 5, 1, 0), WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, 4, 1, 0), WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, 2, 1, 0), WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, 1, 1, 0), WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new dac1r_mix[] = { WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, 5, 1, 0), WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, 4, 1, 0), WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, 2, 1, 0), WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, 1, 1, 0), WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new aif2dac2l_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, 2, 1, 0), SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new aif2dac2r_mix[] = { SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, 5, 1, 0), SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, 4, 1, 0), SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, 2, 1, 0), SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, 1, 1, 0), SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, 0, 1, 0), }; static const struct snd_kcontrol_new in1l_pga = SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0); static const struct snd_kcontrol_new in1r_pga = SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0); static const char *adc_mux_text[] = { "ADC", "DMIC", }; static const struct soc_enum adc_enum = SOC_ENUM_SINGLE(0, 0, 2, adc_mux_text); static const struct snd_kcontrol_new adcl_mux = SOC_DAPM_ENUM_VIRT("ADCL Mux", adc_enum); static const struct snd_kcontrol_new adcr_mux = SOC_DAPM_ENUM_VIRT("ADCR Mux", adc_enum); static const char *spk_src_text[] = { "DAC1L", "DAC1R", "DAC2L", "DAC2R" }; static const SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1, 0, spk_src_text); static const SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1, 0, spk_src_text); static const SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2, 0, spk_src_text); static const SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2, 0, spk_src_text); static const struct snd_kcontrol_new spk1l_mux = SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum); static const struct snd_kcontrol_new spk1r_mux = SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum); static const struct snd_kcontrol_new spk2l_mux = SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum); static const struct snd_kcontrol_new spk2r_mux = SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum); static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = { SND_SOC_DAPM_INPUT("DMIC1DAT"), SND_SOC_DAPM_INPUT("DMIC2DAT"), SND_SOC_DAPM_INPUT("IN1L"), SND_SOC_DAPM_INPUT("IN1R"), SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0, &in1l_pga, 1), SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0, &in1r_pga, 1), SND_SOC_DAPM_MICBIAS("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0), SND_SOC_DAPM_MICBIAS("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0), SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0, WM8995_POWER_MANAGEMENT_3, 9, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0, WM8995_POWER_MANAGEMENT_3, 8, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture", 0, WM8995_POWER_MANAGEMENT_3, 11, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture", 0, WM8995_POWER_MANAGEMENT_3, 10, 0), SND_SOC_DAPM_VIRT_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0, &adcl_mux), SND_SOC_DAPM_VIRT_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0, &adcr_mux), SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0), SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0), SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0), SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0), SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0), SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0), SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0, aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)), SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0, aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)), SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0, aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)), SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0, aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)), SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4, 9, 0), SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4, 8, 0), SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4, 11, 0), SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4, 10, 0), SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0, aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)), SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0, aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)), SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0), SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0), SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0), SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0), 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_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux), SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux), SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0, hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0, hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1, 4, 0, &spk1l_mux), SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1, 4, 0, &spk1r_mux), SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2, 4, 0, &spk2l_mux), SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2, 4, 0, &spk2r_mux), SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0), SND_SOC_DAPM_OUTPUT("HP1L"), SND_SOC_DAPM_OUTPUT("HP1R"), SND_SOC_DAPM_OUTPUT("SPK1L"), SND_SOC_DAPM_OUTPUT("SPK1R"), SND_SOC_DAPM_OUTPUT("SPK2L"), SND_SOC_DAPM_OUTPUT("SPK2R") }; static const struct snd_soc_dapm_route wm8995_intercon[] = { { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys }, { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys }, { "DSP1CLK", NULL, "CLK_SYS" }, { "DSP2CLK", NULL, "CLK_SYS" }, { "SYSDSPCLK", NULL, "CLK_SYS" }, { "AIF1ADC1L", NULL, "AIF1CLK" }, { "AIF1ADC1L", NULL, "DSP1CLK" }, { "AIF1ADC1R", NULL, "AIF1CLK" }, { "AIF1ADC1R", NULL, "DSP1CLK" }, { "AIF1ADC1R", NULL, "SYSDSPCLK" }, { "AIF1ADC2L", NULL, "AIF1CLK" }, { "AIF1ADC2L", NULL, "DSP1CLK" }, { "AIF1ADC2R", NULL, "AIF1CLK" }, { "AIF1ADC2R", NULL, "DSP1CLK" }, { "AIF1ADC2R", NULL, "SYSDSPCLK" }, { "DMIC1L", NULL, "DMIC1DAT" }, { "DMIC1L", NULL, "CLK_SYS" }, { "DMIC1R", NULL, "DMIC1DAT" }, { "DMIC1R", NULL, "CLK_SYS" }, { "DMIC2L", NULL, "DMIC2DAT" }, { "DMIC2L", NULL, "CLK_SYS" }, { "DMIC2R", NULL, "DMIC2DAT" }, { "DMIC2R", NULL, "CLK_SYS" }, { "ADCL", NULL, "AIF1CLK" }, { "ADCL", NULL, "DSP1CLK" }, { "ADCL", NULL, "SYSDSPCLK" }, { "ADCR", NULL, "AIF1CLK" }, { "ADCR", NULL, "DSP1CLK" }, { "ADCR", NULL, "SYSDSPCLK" }, { "IN1L PGA", "IN1L Switch", "IN1L" }, { "IN1R PGA", "IN1R Switch", "IN1R" }, { "IN1L PGA", NULL, "LDO2" }, { "IN1R PGA", NULL, "LDO2" }, { "ADCL", NULL, "IN1L PGA" }, { "ADCR", NULL, "IN1R PGA" }, { "ADCL Mux", "ADC", "ADCL" }, { "ADCL Mux", "DMIC", "DMIC1L" }, { "ADCR Mux", "ADC", "ADCR" }, { "ADCR Mux", "DMIC", "DMIC1R" }, /* AIF1 outputs */ { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" }, { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" }, { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" }, { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" }, { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" }, { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" }, { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" }, { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" }, /* Sidetone */ { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" }, { "Left Sidetone", "DMIC2", "AIF1ADC2L" }, { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" }, { "Right Sidetone", "DMIC2", "AIF1ADC2R" }, { "AIF1DAC1L", NULL, "AIF1CLK" }, { "AIF1DAC1L", NULL, "DSP1CLK" }, { "AIF1DAC1R", NULL, "AIF1CLK" }, { "AIF1DAC1R", NULL, "DSP1CLK" }, { "AIF1DAC1R", NULL, "SYSDSPCLK" }, { "AIF1DAC2L", NULL, "AIF1CLK" }, { "AIF1DAC2L", NULL, "DSP1CLK" }, { "AIF1DAC2R", NULL, "AIF1CLK" }, { "AIF1DAC2R", NULL, "DSP1CLK" }, { "AIF1DAC2R", NULL, "SYSDSPCLK" }, { "DAC1L", NULL, "AIF1CLK" }, { "DAC1L", NULL, "DSP1CLK" }, { "DAC1L", NULL, "SYSDSPCLK" }, { "DAC1R", NULL, "AIF1CLK" }, { "DAC1R", NULL, "DSP1CLK" }, { "DAC1R", NULL, "SYSDSPCLK" }, { "AIF1DAC1L", NULL, "AIF1DACDAT" }, { "AIF1DAC1R", NULL, "AIF1DACDAT" }, { "AIF1DAC2L", NULL, "AIF1DACDAT" }, { "AIF1DAC2R", NULL, "AIF1DACDAT" }, /* DAC1 inputs */ { "DAC1L", NULL, "DAC1L Mixer" }, { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" }, { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" }, { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" }, { "DAC1R", NULL, "DAC1R Mixer" }, { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" }, { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" }, { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" }, { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" }, /* DAC2/AIF2 outputs */ { "DAC2L", NULL, "AIF2DAC2L Mixer" }, { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" }, { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" }, { "DAC2R", NULL, "AIF2DAC2R Mixer" }, { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" }, { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" }, /* Output stages */ { "Headphone PGA", NULL, "DAC1L" }, { "Headphone PGA", NULL, "DAC1R" }, { "Headphone PGA", NULL, "DAC2L" }, { "Headphone PGA", NULL, "DAC2R" }, { "Headphone PGA", NULL, "Headphone Supply" }, { "Headphone PGA", NULL, "CLK_SYS" }, { "Headphone PGA", NULL, "LDO2" }, { "HP1L", NULL, "Headphone PGA" }, { "HP1R", NULL, "Headphone PGA" }, { "SPK1L Driver", "DAC1L", "DAC1L" }, { "SPK1L Driver", "DAC1R", "DAC1R" }, { "SPK1L Driver", "DAC2L", "DAC2L" }, { "SPK1L Driver", "DAC2R", "DAC2R" }, { "SPK1L Driver", NULL, "CLK_SYS" }, { "SPK1R Driver", "DAC1L", "DAC1L" }, { "SPK1R Driver", "DAC1R", "DAC1R" }, { "SPK1R Driver", "DAC2L", "DAC2L" }, { "SPK1R Driver", "DAC2R", "DAC2R" }, { "SPK1R Driver", NULL, "CLK_SYS" }, { "SPK2L Driver", "DAC1L", "DAC1L" }, { "SPK2L Driver", "DAC1R", "DAC1R" }, { "SPK2L Driver", "DAC2L", "DAC2L" }, { "SPK2L Driver", "DAC2R", "DAC2R" }, { "SPK2L Driver", NULL, "CLK_SYS" }, { "SPK2R Driver", "DAC1L", "DAC1L" }, { "SPK2R Driver", "DAC1R", "DAC1R" }, { "SPK2R Driver", "DAC2L", "DAC2L" }, { "SPK2R Driver", "DAC2R", "DAC2R" }, { "SPK2R Driver", NULL, "CLK_SYS" }, { "SPK1L", NULL, "SPK1L Driver" }, { "SPK1R", NULL, "SPK1R Driver" }, { "SPK2L", NULL, "SPK2L Driver" }, { "SPK2R", NULL, "SPK2R Driver" } }; static int wm8995_volatile(unsigned int reg) { /* out of bounds registers are generally considered * volatile to support register banks that are partially * owned by something else for e.g. a DSP */ if (reg > WM8995_MAX_CACHED_REGISTER) return 1; switch (reg) { case WM8995_SOFTWARE_RESET: case WM8995_DC_SERVO_READBACK_0: case WM8995_INTERRUPT_STATUS_1: case WM8995_INTERRUPT_STATUS_2: case WM8995_INTERRUPT_STATUS_1_MASK: case WM8995_INTERRUPT_STATUS_2_MASK: case WM8995_INTERRUPT_CONTROL: case WM8995_ACCESSORY_DETECT_MODE1: case WM8995_ACCESSORY_DETECT_MODE2: case WM8995_HEADPHONE_DETECT1: case WM8995_HEADPHONE_DETECT2: return 1; } return 0; } static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; int mute_reg; switch (dai->id) { case 0: mute_reg = WM8995_AIF1_DAC1_FILTERS_1; break; case 1: mute_reg = WM8995_AIF2_DAC_FILTERS_1; break; default: return -EINVAL; } snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK, !!mute << WM8995_AIF1DAC1_MUTE_SHIFT); return 0; } static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_codec *codec; int master; int aif; codec = dai->codec; master = 0; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: break; case SND_SOC_DAIFMT_CBM_CFM: master = WM8995_AIF1_MSTR; break; default: dev_err(dai->dev, "Unknown master/slave configuration\n"); return -EINVAL; } aif = 0; switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_DSP_B: aif |= WM8995_AIF1_LRCLK_INV; case SND_SOC_DAIFMT_DSP_A: aif |= (0x3 << WM8995_AIF1_FMT_SHIFT); break; case SND_SOC_DAIFMT_I2S: aif |= (0x2 << WM8995_AIF1_FMT_SHIFT); break; case SND_SOC_DAIFMT_RIGHT_J: break; case SND_SOC_DAIFMT_LEFT_J: aif |= (0x1 << WM8995_AIF1_FMT_SHIFT); break; default: dev_err(dai->dev, "Unknown dai format\n"); return -EINVAL; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_DSP_A: case SND_SOC_DAIFMT_DSP_B: /* frame inversion not valid for DSP modes */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_NF: aif |= WM8995_AIF1_BCLK_INV; break; default: return -EINVAL; } break; case SND_SOC_DAIFMT_I2S: case SND_SOC_DAIFMT_RIGHT_J: case SND_SOC_DAIFMT_LEFT_J: switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_IF: aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV; break; case SND_SOC_DAIFMT_IB_NF: aif |= WM8995_AIF1_BCLK_INV; break; case SND_SOC_DAIFMT_NB_IF: aif |= WM8995_AIF1_LRCLK_INV; break; default: return -EINVAL; } break; default: return -EINVAL; } snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1, WM8995_AIF1_BCLK_INV_MASK | WM8995_AIF1_LRCLK_INV_MASK | WM8995_AIF1_FMT_MASK, aif); snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE, WM8995_AIF1_MSTR_MASK, master); return 0; } static const int srs[] = { 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 88200, 96000 }; static const int fs_ratios[] = { -1 /* reserved */, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536 }; static const int bclk_divs[] = { 10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480 }; static int wm8995_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec; struct wm8995_priv *wm8995; int aif1_reg; int bclk_reg; int lrclk_reg; int rate_reg; int bclk_rate; int aif1; int lrclk, bclk; int i, rate_val, best, best_val, cur_val; codec = dai->codec; wm8995 = snd_soc_codec_get_drvdata(codec); switch (dai->id) { case 0: aif1_reg = WM8995_AIF1_CONTROL_1; bclk_reg = WM8995_AIF1_BCLK; rate_reg = WM8995_AIF1_RATE; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* || wm8995->lrclk_shared[0] */) { lrclk_reg = WM8995_AIF1DAC_LRCLK; } else { lrclk_reg = WM8995_AIF1ADC_LRCLK; dev_dbg(codec->dev, "AIF1 using split LRCLK\n"); } break; case 1: aif1_reg = WM8995_AIF2_CONTROL_1; bclk_reg = WM8995_AIF2_BCLK; rate_reg = WM8995_AIF2_RATE; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* || wm8995->lrclk_shared[1] */) { lrclk_reg = WM8995_AIF2DAC_LRCLK; } else { lrclk_reg = WM8995_AIF2ADC_LRCLK; dev_dbg(codec->dev, "AIF2 using split LRCLK\n"); } break; default: return -EINVAL; } bclk_rate = snd_soc_params_to_bclk(params); if (bclk_rate < 0) return bclk_rate; aif1 = 0; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: break; case SNDRV_PCM_FORMAT_S20_3LE: aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT); break; case SNDRV_PCM_FORMAT_S24_LE: aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT); break; case SNDRV_PCM_FORMAT_S32_LE: aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT); break; default: dev_err(dai->dev, "Unsupported word length %u\n", params_format(params)); return -EINVAL; } /* try to find a suitable sample rate */ for (i = 0; i < ARRAY_SIZE(srs); ++i) if (srs[i] == params_rate(params)) break; if (i == ARRAY_SIZE(srs)) { dev_err(dai->dev, "Sample rate %d is not supported\n", params_rate(params)); return -EINVAL; } rate_val = i << WM8995_AIF1_SR_SHIFT; dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]); dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n", dai->id + 1, wm8995->aifclk[dai->id], bclk_rate); /* AIFCLK/fs ratio; look for a close match in either direction */ best = 1; best_val = abs((fs_ratios[1] * params_rate(params)) - wm8995->aifclk[dai->id]); for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) { cur_val = abs((fs_ratios[i] * params_rate(params)) - wm8995->aifclk[dai->id]); if (cur_val >= best_val) continue; best = i; best_val = cur_val; } rate_val |= best; dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n", dai->id + 1, fs_ratios[best]); /* * We may not get quite the right frequency if using * approximate clocks so look for the closest match that is * higher than the target (we need to ensure that there enough * BCLKs to clock out the samples). */ best = 0; bclk = 0; for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate; if (cur_val < 0) /* BCLK table is sorted */ break; best = i; } bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT; bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best]; dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n", bclk_divs[best], bclk_rate); 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_update_bits(codec, aif1_reg, WM8995_AIF1_WL_MASK, aif1); snd_soc_update_bits(codec, bclk_reg, WM8995_AIF1_BCLK_DIV_MASK, bclk); snd_soc_update_bits(codec, lrclk_reg, WM8995_AIF1DAC_RATE_MASK, lrclk); snd_soc_update_bits(codec, rate_reg, WM8995_AIF1_SR_MASK | WM8995_AIF1CLK_RATE_MASK, rate_val); return 0; } static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate) { struct snd_soc_codec *codec = codec_dai->codec; int reg, val, mask; switch (codec_dai->id) { case 0: reg = WM8995_AIF1_MASTER_SLAVE; mask = WM8995_AIF1_TRI; break; case 1: reg = WM8995_AIF2_MASTER_SLAVE; mask = WM8995_AIF2_TRI; break; case 2: reg = WM8995_POWER_MANAGEMENT_5; mask = WM8995_AIF3_TRI; break; default: return -EINVAL; } if (tristate) val = mask; else val = 0; return snd_soc_update_bits(codec, reg, mask, reg); } /* The size in bits of the FLL divide multiplied by 10 * to allow rounding later */ #define FIXED_FLL_SIZE ((1 << 16) * 10) struct fll_div { u16 outdiv; u16 n; u16 k; u16 clk_ref_div; u16 fll_fratio; }; static int wm8995_get_fll_config(struct fll_div *fll, int freq_in, int freq_out) { u64 Kpart; unsigned int K, Ndiv, Nmod; pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out); /* Scale the input frequency down to <= 13.5MHz */ fll->clk_ref_div = 0; while (freq_in > 13500000) { fll->clk_ref_div++; freq_in /= 2; if (fll->clk_ref_div > 3) return -EINVAL; } pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in); /* Scale the output to give 90MHz<=Fvco<=100MHz */ fll->outdiv = 3; while (freq_out * (fll->outdiv + 1) < 90000000) { fll->outdiv++; if (fll->outdiv > 63) return -EINVAL; } freq_out *= fll->outdiv + 1; pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out); if (freq_in > 1000000) { fll->fll_fratio = 0; } else if (freq_in > 256000) { fll->fll_fratio = 1; freq_in *= 2; } else if (freq_in > 128000) { fll->fll_fratio = 2; freq_in *= 4; } else if (freq_in > 64000) { fll->fll_fratio = 3; freq_in *= 8; } else { fll->fll_fratio = 4; freq_in *= 16; } pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in); /* Now, calculate N.K */ Ndiv = freq_out / freq_in; fll->n = Ndiv; Nmod = freq_out % freq_in; pr_debug("Nmod=%d\n", Nmod); /* Calculate fractional part - scale up so we can round. */ Kpart = FIXED_FLL_SIZE * (long long)Nmod; do_div(Kpart, freq_in); K = Kpart & 0xFFFFFFFF; if ((K % 10) >= 5) K += 5; /* Move down to proper range now rounding is done */ fll->k = K / 10; pr_debug("N=%x K=%x\n", fll->n, fll->k); return 0; } static int wm8995_set_fll(struct snd_soc_dai *dai, int id, int src, unsigned int freq_in, unsigned int freq_out) { struct snd_soc_codec *codec; struct wm8995_priv *wm8995; int reg_offset, ret; struct fll_div fll; u16 reg, aif1, aif2; codec = dai->codec; wm8995 = snd_soc_codec_get_drvdata(codec); aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1) & WM8995_AIF1CLK_ENA; aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1) & WM8995_AIF2CLK_ENA; switch (id) { case WM8995_FLL1: reg_offset = 0; id = 0; break; case WM8995_FLL2: reg_offset = 0x20; id = 1; break; default: return -EINVAL; } switch (src) { case 0: /* Allow no source specification when stopping */ if (freq_out) return -EINVAL; break; case WM8995_FLL_SRC_MCLK1: case WM8995_FLL_SRC_MCLK2: case WM8995_FLL_SRC_LRCLK: case WM8995_FLL_SRC_BCLK: break; default: return -EINVAL; } /* Are we changing anything? */ if (wm8995->fll[id].src == src && wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out) return 0; /* If we're stopping the FLL redo the old config - no * registers will actually be written but we avoid GCC flow * analysis bugs spewing warnings. */ if (freq_out) ret = wm8995_get_fll_config(&fll, freq_in, freq_out); else ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in, wm8995->fll[id].out); if (ret < 0) return ret; /* Gate the AIF clocks while we reclock */ snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1, WM8995_AIF1CLK_ENA_MASK, 0); snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1, WM8995_AIF2CLK_ENA_MASK, 0); /* We always need to disable the FLL while reconfiguring */ snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset, WM8995_FLL1_ENA_MASK, 0); reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) | (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT); snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset, WM8995_FLL1_OUTDIV_MASK | WM8995_FLL1_FRATIO_MASK, reg); snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k); snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset, WM8995_FLL1_N_MASK, fll.n << WM8995_FLL1_N_SHIFT); snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset, WM8995_FLL1_REFCLK_DIV_MASK | WM8995_FLL1_REFCLK_SRC_MASK, (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) | (src - 1)); if (freq_out) snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset, WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA); wm8995->fll[id].in = freq_in; wm8995->fll[id].out = freq_out; wm8995->fll[id].src = src; /* Enable any gated AIF clocks */ snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1, WM8995_AIF1CLK_ENA_MASK, aif1); snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1, WM8995_AIF2CLK_ENA_MASK, aif2); configure_clock(codec); return 0; } static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec; struct wm8995_priv *wm8995; codec = dai->codec; wm8995 = snd_soc_codec_get_drvdata(codec); switch (dai->id) { case 0: case 1: break; default: /* AIF3 shares clocking with AIF1/2 */ return -EINVAL; } switch (clk_id) { case WM8995_SYSCLK_MCLK1: wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1; wm8995->mclk[0] = freq; dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n", dai->id + 1, freq); break; case WM8995_SYSCLK_MCLK2: wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1; wm8995->mclk[1] = freq; dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n", dai->id + 1, freq); break; case WM8995_SYSCLK_FLL1: wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1; dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1); break; case WM8995_SYSCLK_FLL2: wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2; dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1); break; case WM8995_SYSCLK_OPCLK: default: dev_err(dai->dev, "Unknown clock source %d\n", clk_id); return -EINVAL; } configure_clock(codec); return 0; } static int wm8995_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct wm8995_priv *wm8995; int ret; wm8995 = snd_soc_codec_get_drvdata(codec); switch (level) { case SND_SOC_BIAS_ON: case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { ret = snd_soc_cache_sync(codec); if (ret) { dev_err(codec->dev, "Failed to sync cache: %d\n", ret); return ret; } snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, WM8995_BG_ENA_MASK, WM8995_BG_ENA); } break; case SND_SOC_BIAS_OFF: snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, WM8995_BG_ENA_MASK, 0); codec->cache_sync = 1; break; } codec->dapm.bias_level = level; return 0; } #ifdef CONFIG_PM static int wm8995_suspend(struct snd_soc_codec *codec, pm_message_t state) { wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int wm8995_resume(struct snd_soc_codec *codec) { wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } #else #define wm8995_suspend NULL #define wm8995_resume NULL #endif static int wm8995_remove(struct snd_soc_codec *codec) { struct wm8995_priv *wm8995; struct i2c_client *i2c; i2c = container_of(codec->dev, struct i2c_client, dev); wm8995 = snd_soc_codec_get_drvdata(codec); wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int wm8995_probe(struct snd_soc_codec *codec) { struct wm8995_priv *wm8995; int ret; codec->dapm.idle_bias_off = 1; wm8995 = snd_soc_codec_get_drvdata(codec); ret = snd_soc_codec_set_cache_io(codec, 16, 16, wm8995->control_type); if (ret < 0) { dev_err(codec->dev, "Failed to set cache i/o: %d\n", ret); return ret; } ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET); if (ret < 0) { dev_err(codec->dev, "Failed to read device ID: %d\n", ret); return ret; } if (ret != 0x8995) { dev_err(codec->dev, "Invalid device ID: %#x\n", ret); return -EINVAL; } ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset: %d\n", ret); return ret; } wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* Latch volume updates (right only; we always do left then right). */ snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME, WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU); snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME, WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU); snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME, WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU); snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME, WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU); snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME, WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU); snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME, WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU); snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME, WM8995_DAC1_VU_MASK, WM8995_DAC1_VU); snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME, WM8995_DAC2_VU_MASK, WM8995_DAC2_VU); snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME, WM8995_IN1_VU_MASK, WM8995_IN1_VU); wm8995_update_class_w(codec); snd_soc_add_controls(codec, wm8995_snd_controls, ARRAY_SIZE(wm8995_snd_controls)); snd_soc_dapm_new_controls(&codec->dapm, wm8995_dapm_widgets, ARRAY_SIZE(wm8995_dapm_widgets)); snd_soc_dapm_add_routes(&codec->dapm, wm8995_intercon, ARRAY_SIZE(wm8995_intercon)); return 0; } #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static struct snd_soc_dai_ops wm8995_aif1_dai_ops = { .set_sysclk = wm8995_set_dai_sysclk, .set_fmt = wm8995_set_dai_fmt, .hw_params = wm8995_hw_params, .digital_mute = wm8995_aif_mute, .set_pll = wm8995_set_fll, .set_tristate = wm8995_set_tristate, }; static struct snd_soc_dai_ops wm8995_aif2_dai_ops = { .set_sysclk = wm8995_set_dai_sysclk, .set_fmt = wm8995_set_dai_fmt, .hw_params = wm8995_hw_params, .digital_mute = wm8995_aif_mute, .set_pll = wm8995_set_fll, .set_tristate = wm8995_set_tristate, }; static struct snd_soc_dai_ops wm8995_aif3_dai_ops = { .set_tristate = wm8995_set_tristate, }; static struct snd_soc_dai_driver wm8995_dai[] = { { .name = "wm8995-aif1", .playback = { .stream_name = "AIF1 Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = WM8995_FORMATS }, .capture = { .stream_name = "AIF1 Capture", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = WM8995_FORMATS }, .ops = &wm8995_aif1_dai_ops }, { .name = "wm8995-aif2", .playback = { .stream_name = "AIF2 Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = WM8995_FORMATS }, .capture = { .stream_name = "AIF2 Capture", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = WM8995_FORMATS }, .ops = &wm8995_aif2_dai_ops }, { .name = "wm8995-aif3", .playback = { .stream_name = "AIF3 Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_96000, .formats = WM8995_FORMATS }, .capture = { .stream_name = "AIF3 Capture", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = WM8995_FORMATS }, .ops = &wm8995_aif3_dai_ops } }; static struct snd_soc_codec_driver soc_codec_dev_wm8995 = { .probe = wm8995_probe, .remove = wm8995_remove, .suspend = wm8995_suspend, .resume = wm8995_resume, .set_bias_level = wm8995_set_bias_level, .reg_cache_size = ARRAY_SIZE(wm8995_reg_defs), .reg_word_size = sizeof(u16), .reg_cache_default = wm8995_reg_defs, .volatile_register = wm8995_volatile, .compress_type = SND_SOC_RBTREE_COMPRESSION }; #if defined(CONFIG_SPI_MASTER) static int __devinit wm8995_spi_probe(struct spi_device *spi) { struct wm8995_priv *wm8995; int ret; wm8995 = kzalloc(sizeof *wm8995, GFP_KERNEL); if (!wm8995) return -ENOMEM; wm8995->control_type = SND_SOC_SPI; spi_set_drvdata(spi, wm8995); ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8995, wm8995_dai, ARRAY_SIZE(wm8995_dai)); if (ret < 0) kfree(wm8995); return ret; } static int __devexit wm8995_spi_remove(struct spi_device *spi) { snd_soc_unregister_codec(&spi->dev); kfree(spi_get_drvdata(spi)); return 0; } static struct spi_driver wm8995_spi_driver = { .driver = { .name = "wm8995", .owner = THIS_MODULE, }, .probe = wm8995_spi_probe, .remove = __devexit_p(wm8995_spi_remove) }; #endif #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static __devinit int wm8995_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8995_priv *wm8995; int ret; wm8995 = kzalloc(sizeof *wm8995, GFP_KERNEL); if (!wm8995) return -ENOMEM; wm8995->control_type = SND_SOC_I2C; i2c_set_clientdata(i2c, wm8995); ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8995, wm8995_dai, ARRAY_SIZE(wm8995_dai)); if (ret < 0) kfree(wm8995); return ret; } static __devexit int wm8995_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); kfree(i2c_get_clientdata(client)); return 0; } static const struct i2c_device_id wm8995_i2c_id[] = { {"wm8995", 0}, {} }; MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id); static struct i2c_driver wm8995_i2c_driver = { .driver = { .name = "wm8995", .owner = THIS_MODULE, }, .probe = wm8995_i2c_probe, .remove = __devexit_p(wm8995_i2c_remove), .id_table = wm8995_i2c_id }; #endif static int __init wm8995_modinit(void) { int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8995_i2c_driver); if (ret) { printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n", ret); } #endif #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&wm8995_spi_driver); if (ret) { printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n", ret); } #endif return ret; } module_init(wm8995_modinit); static void __exit wm8995_exit(void) { #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8995_i2c_driver); #endif #if defined(CONFIG_SPI_MASTER) spi_unregister_driver(&wm8995_spi_driver); #endif } module_exit(wm8995_exit); MODULE_DESCRIPTION("ASoC WM8995 driver"); MODULE_AUTHOR("Dimitris Papastamos "); MODULE_LICENSE("GPL");