1c1f27190SArun KS /* 2c1f27190SArun KS * ALSA SoC TLV320AIC23 codec driver 3c1f27190SArun KS * 4c1f27190SArun KS * Author: Arun KS, <arunks@mistralsolutions.com> 5c1f27190SArun KS * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., 6c1f27190SArun KS * 7c1f27190SArun KS * Based on sound/soc/codecs/wm8731.c by Richard Purdie 8c1f27190SArun KS * 9c1f27190SArun KS * This program is free software; you can redistribute it and/or modify 10c1f27190SArun KS * it under the terms of the GNU General Public License version 2 as 11c1f27190SArun KS * published by the Free Software Foundation. 12c1f27190SArun KS * 13c1f27190SArun KS * Notes: 14c1f27190SArun KS * The AIC23 is a driver for a low power stereo audio 15c1f27190SArun KS * codec tlv320aic23 16c1f27190SArun KS * 17c1f27190SArun KS * The machine layer should disable unsupported inputs/outputs by 18c1f27190SArun KS * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. 19c1f27190SArun KS */ 20c1f27190SArun KS 21c1f27190SArun KS #include <linux/module.h> 22c1f27190SArun KS #include <linux/moduleparam.h> 23c1f27190SArun KS #include <linux/init.h> 24c1f27190SArun KS #include <linux/delay.h> 25c1f27190SArun KS #include <linux/pm.h> 26c1f27190SArun KS #include <linux/i2c.h> 27c1f27190SArun KS #include <linux/platform_device.h> 285a0e3ad6STejun Heo #include <linux/slab.h> 29c1f27190SArun KS #include <sound/core.h> 30c1f27190SArun KS #include <sound/pcm.h> 31c1f27190SArun KS #include <sound/pcm_params.h> 32c1f27190SArun KS #include <sound/soc.h> 33c1f27190SArun KS #include <sound/tlv.h> 34c1f27190SArun KS #include <sound/initval.h> 35c1f27190SArun KS 36c1f27190SArun KS #include "tlv320aic23.h" 37c1f27190SArun KS 38c1f27190SArun KS #define AIC23_VERSION "0.1" 39c1f27190SArun KS 40c1f27190SArun KS /* 41c1f27190SArun KS * AIC23 register cache 42c1f27190SArun KS */ 43c1f27190SArun KS static const u16 tlv320aic23_reg[] = { 44c1f27190SArun KS 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */ 45c1f27190SArun KS 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */ 46c1f27190SArun KS 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */ 47c1f27190SArun KS 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */ 48c1f27190SArun KS }; 49c1f27190SArun KS 50c1f27190SArun KS /* 51c1f27190SArun KS * read tlv320aic23 register cache 52c1f27190SArun KS */ 53c1f27190SArun KS static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec 54c1f27190SArun KS *codec, unsigned int reg) 55c1f27190SArun KS { 56c1f27190SArun KS u16 *cache = codec->reg_cache; 57c1f27190SArun KS if (reg >= ARRAY_SIZE(tlv320aic23_reg)) 58c1f27190SArun KS return -1; 59c1f27190SArun KS return cache[reg]; 60c1f27190SArun KS } 61c1f27190SArun KS 62c1f27190SArun KS /* 63c1f27190SArun KS * write tlv320aic23 register cache 64c1f27190SArun KS */ 65c1f27190SArun KS static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec, 66c1f27190SArun KS u8 reg, u16 value) 67c1f27190SArun KS { 68c1f27190SArun KS u16 *cache = codec->reg_cache; 69c1f27190SArun KS if (reg >= ARRAY_SIZE(tlv320aic23_reg)) 70c1f27190SArun KS return; 71c1f27190SArun KS cache[reg] = value; 72c1f27190SArun KS } 73c1f27190SArun KS 74c1f27190SArun KS /* 75c1f27190SArun KS * write to the tlv320aic23 register space 76c1f27190SArun KS */ 77c1f27190SArun KS static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg, 78c1f27190SArun KS unsigned int value) 79c1f27190SArun KS { 80c1f27190SArun KS 814aa02396SArun KS u8 data[2]; 82c1f27190SArun KS 83c1f27190SArun KS /* TLV320AIC23 has 7 bit address and 9 bits of data 84c1f27190SArun KS * so we need to switch one data bit into reg and rest 85c1f27190SArun KS * of data into val 86c1f27190SArun KS */ 87c1f27190SArun KS 8884ed1a19SRoel Kluin if (reg > 9 && reg != 15) { 89449bd54dSRoel Kluin printk(KERN_WARNING "%s Invalid register R%u\n", __func__, reg); 90c1f27190SArun KS return -1; 91c1f27190SArun KS } 92c1f27190SArun KS 934aa02396SArun KS data[0] = (reg << 1) | (value >> 8 & 0x01); 944aa02396SArun KS data[1] = value & 0xff; 95c1f27190SArun KS 96c1f27190SArun KS tlv320aic23_write_reg_cache(codec, reg, value); 97c1f27190SArun KS 984aa02396SArun KS if (codec->hw_write(codec->control_data, data, 2) == 2) 99c1f27190SArun KS return 0; 100c1f27190SArun KS 101449bd54dSRoel Kluin printk(KERN_ERR "%s cannot write %03x to register R%u\n", __func__, 102c1f27190SArun KS value, reg); 103c1f27190SArun KS 104c1f27190SArun KS return -EIO; 105c1f27190SArun KS } 106c1f27190SArun KS 107c1f27190SArun KS static const char *rec_src_text[] = { "Line", "Mic" }; 108c1f27190SArun KS static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 109c1f27190SArun KS 110c1f27190SArun KS static const struct soc_enum rec_src_enum = 111c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 112c1f27190SArun KS 113c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = 114c1f27190SArun KS SOC_DAPM_ENUM("Input Select", rec_src_enum); 115c1f27190SArun KS 116c1f27190SArun KS static const struct soc_enum tlv320aic23_rec_src = 117c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 118c1f27190SArun KS static const struct soc_enum tlv320aic23_deemph = 119c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text); 120c1f27190SArun KS 121c1f27190SArun KS static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); 122c1f27190SArun KS static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); 123df91ddf1SArun KS static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); 124df91ddf1SArun KS 125df91ddf1SArun KS static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, 126df91ddf1SArun KS struct snd_ctl_elem_value *ucontrol) 127df91ddf1SArun KS { 128df91ddf1SArun KS struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 129df91ddf1SArun KS u16 val, reg; 130df91ddf1SArun KS 131df91ddf1SArun KS val = (ucontrol->value.integer.value[0] & 0x07); 132df91ddf1SArun KS 133df91ddf1SArun KS /* linear conversion to userspace 134df91ddf1SArun KS * 000 = -6db 135df91ddf1SArun KS * 001 = -9db 136df91ddf1SArun KS * 010 = -12db 137df91ddf1SArun KS * 011 = -18db (Min) 138df91ddf1SArun KS * 100 = 0db (Max) 139df91ddf1SArun KS */ 140df91ddf1SArun KS val = (val >= 4) ? 4 : (3 - val); 141df91ddf1SArun KS 142df91ddf1SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0); 143df91ddf1SArun KS tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); 144df91ddf1SArun KS 145df91ddf1SArun KS return 0; 146df91ddf1SArun KS } 147df91ddf1SArun KS 148df91ddf1SArun KS static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, 149df91ddf1SArun KS struct snd_ctl_elem_value *ucontrol) 150df91ddf1SArun KS { 151df91ddf1SArun KS struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 152df91ddf1SArun KS u16 val; 153df91ddf1SArun KS 154df91ddf1SArun KS val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0); 155df91ddf1SArun KS val = val >> 6; 156df91ddf1SArun KS val = (val >= 4) ? 4 : (3 - val); 157df91ddf1SArun KS ucontrol->value.integer.value[0] = val; 158df91ddf1SArun KS return 0; 159df91ddf1SArun KS 160df91ddf1SArun KS } 161df91ddf1SArun KS 162df91ddf1SArun KS #define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 163df91ddf1SArun KS { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 164df91ddf1SArun KS .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 165df91ddf1SArun KS SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 166df91ddf1SArun KS .tlv.p = (tlv_array), \ 167df91ddf1SArun KS .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\ 168df91ddf1SArun KS .put = snd_soc_tlv320aic23_put_volsw, \ 169df91ddf1SArun KS .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 170c1f27190SArun KS 171c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { 172c1f27190SArun KS SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, 173c1f27190SArun KS TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv), 174c1f27190SArun KS SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1), 175c1f27190SArun KS SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL, 176c1f27190SArun KS TLV320AIC23_RINVOL, 7, 1, 0), 177c1f27190SArun KS SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL, 178c1f27190SArun KS TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), 179c1f27190SArun KS SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), 180c1f27190SArun KS SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), 181df91ddf1SArun KS SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG, 182df91ddf1SArun KS 6, 4, 0, sidetone_vol_tlv), 183c1f27190SArun KS SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), 184c1f27190SArun KS }; 185c1f27190SArun KS 186c1f27190SArun KS /* PGA Mixer controls for Line and Mic switch */ 187c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = { 188c1f27190SArun KS SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0), 189c1f27190SArun KS SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0), 190c1f27190SArun KS SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0), 191c1f27190SArun KS }; 192c1f27190SArun KS 193c1f27190SArun KS static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { 194c1f27190SArun KS SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1), 195c1f27190SArun KS SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1), 196c1f27190SArun KS SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, 197c1f27190SArun KS &tlv320aic23_rec_src_mux_controls), 198c1f27190SArun KS SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1, 199c1f27190SArun KS &tlv320aic23_output_mixer_controls[0], 200c1f27190SArun KS ARRAY_SIZE(tlv320aic23_output_mixer_controls)), 201c1f27190SArun KS SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0), 202c1f27190SArun KS SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0), 203c1f27190SArun KS 204c1f27190SArun KS SND_SOC_DAPM_OUTPUT("LHPOUT"), 205c1f27190SArun KS SND_SOC_DAPM_OUTPUT("RHPOUT"), 206c1f27190SArun KS SND_SOC_DAPM_OUTPUT("LOUT"), 207c1f27190SArun KS SND_SOC_DAPM_OUTPUT("ROUT"), 208c1f27190SArun KS 209c1f27190SArun KS SND_SOC_DAPM_INPUT("LLINEIN"), 210c1f27190SArun KS SND_SOC_DAPM_INPUT("RLINEIN"), 211c1f27190SArun KS 212c1f27190SArun KS SND_SOC_DAPM_INPUT("MICIN"), 213c1f27190SArun KS }; 214c1f27190SArun KS 215a7dca707SLu Guanqun static const struct snd_soc_dapm_route tlv320aic23_intercon[] = { 216c1f27190SArun KS /* Output Mixer */ 217c1f27190SArun KS {"Output Mixer", "Line Bypass Switch", "Line Input"}, 218c1f27190SArun KS {"Output Mixer", "Playback Switch", "DAC"}, 219c1f27190SArun KS {"Output Mixer", "Mic Sidetone Switch", "Mic Input"}, 220c1f27190SArun KS 221c1f27190SArun KS /* Outputs */ 222c1f27190SArun KS {"RHPOUT", NULL, "Output Mixer"}, 223c1f27190SArun KS {"LHPOUT", NULL, "Output Mixer"}, 224c1f27190SArun KS {"LOUT", NULL, "Output Mixer"}, 225c1f27190SArun KS {"ROUT", NULL, "Output Mixer"}, 226c1f27190SArun KS 227c1f27190SArun KS /* Inputs */ 228c1f27190SArun KS {"Line Input", "NULL", "LLINEIN"}, 229c1f27190SArun KS {"Line Input", "NULL", "RLINEIN"}, 230c1f27190SArun KS 231c1f27190SArun KS {"Mic Input", "NULL", "MICIN"}, 232c1f27190SArun KS 233c1f27190SArun KS /* input mux */ 234c1f27190SArun KS {"Capture Source", "Line", "Line Input"}, 235c1f27190SArun KS {"Capture Source", "Mic", "Mic Input"}, 236c1f27190SArun KS {"ADC", NULL, "Capture Source"}, 237c1f27190SArun KS 238c1f27190SArun KS }; 239c1f27190SArun KS 24026df91c3STroy Kisky /* AIC23 driver data */ 24126df91c3STroy Kisky struct aic23 { 242f0fba2adSLiam Girdwood enum snd_soc_control_type control_type; 243f0fba2adSLiam Girdwood void *control_data; 24426df91c3STroy Kisky int mclk; 24526df91c3STroy Kisky int requested_adc; 24626df91c3STroy Kisky int requested_dac; 247c1f27190SArun KS }; 248c1f27190SArun KS 24926df91c3STroy Kisky /* 25026df91c3STroy Kisky * Common Crystals used 25126df91c3STroy Kisky * 11.2896 Mhz /128 = *88.2k /192 = 58.8k 25226df91c3STroy Kisky * 12.0000 Mhz /125 = *96k /136 = 88.235K 25326df91c3STroy Kisky * 12.2880 Mhz /128 = *96k /192 = 64k 25426df91c3STroy Kisky * 16.9344 Mhz /128 = 132.3k /192 = *88.2k 25526df91c3STroy Kisky * 18.4320 Mhz /128 = 144k /192 = *96k 25626df91c3STroy Kisky */ 25726df91c3STroy Kisky 25826df91c3STroy Kisky /* 25926df91c3STroy Kisky * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 26026df91c3STroy Kisky * USB BOSR 0-250/2 = 125, 1-272/2 = 136 26126df91c3STroy Kisky */ 26226df91c3STroy Kisky static const int bosr_usb_divisor_table[] = { 26326df91c3STroy Kisky 128, 125, 192, 136 26426df91c3STroy Kisky }; 26526df91c3STroy Kisky #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7)) 26626df91c3STroy Kisky #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15)) 26726df91c3STroy Kisky static const unsigned short sr_valid_mask[] = { 26826df91c3STroy Kisky LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/ 26926df91c3STroy Kisky LOWER_GROUP, /* Usb, bosr - 0*/ 270bab02124STroy Kisky LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/ 27126df91c3STroy Kisky UPPER_GROUP, /* Usb, bosr - 1*/ 27226df91c3STroy Kisky }; 27326df91c3STroy Kisky /* 27426df91c3STroy Kisky * Every divisor is a factor of 11*12 27526df91c3STroy Kisky */ 27626df91c3STroy Kisky #define SR_MULT (11*12) 277ccff4b15STroy Kisky #define A(x) (SR_MULT/x) 27826df91c3STroy Kisky static const unsigned char sr_adc_mult_table[] = { 279ccff4b15STroy Kisky A(2), A(2), A(12), A(12), 0, 0, A(3), A(1), 280ccff4b15STroy Kisky A(2), A(2), A(11), A(11), 0, 0, 0, A(1) 28126df91c3STroy Kisky }; 28226df91c3STroy Kisky static const unsigned char sr_dac_mult_table[] = { 283ccff4b15STroy Kisky A(2), A(12), A(2), A(12), 0, 0, A(3), A(1), 284ccff4b15STroy Kisky A(2), A(11), A(2), A(11), 0, 0, 0, A(1) 28526df91c3STroy Kisky }; 28626df91c3STroy Kisky 28726df91c3STroy Kisky static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, 28826df91c3STroy Kisky int dac, int dac_l, int dac_h, int need_dac) 28926df91c3STroy Kisky { 29026df91c3STroy Kisky if ((adc >= adc_l) && (adc <= adc_h) && 29126df91c3STroy Kisky (dac >= dac_l) && (dac <= dac_h)) { 29226df91c3STroy Kisky int diff_adc = need_adc - adc; 29326df91c3STroy Kisky int diff_dac = need_dac - dac; 29426df91c3STroy Kisky return abs(diff_adc) + abs(diff_dac); 29526df91c3STroy Kisky } 29626df91c3STroy Kisky return UINT_MAX; 29726df91c3STroy Kisky } 29826df91c3STroy Kisky 29926df91c3STroy Kisky static int find_rate(int mclk, u32 need_adc, u32 need_dac) 30026df91c3STroy Kisky { 30126df91c3STroy Kisky int i, j; 30226df91c3STroy Kisky int best_i = -1; 30326df91c3STroy Kisky int best_j = -1; 30426df91c3STroy Kisky int best_div = 0; 30526df91c3STroy Kisky unsigned best_score = UINT_MAX; 30626df91c3STroy Kisky int adc_l, adc_h, dac_l, dac_h; 30726df91c3STroy Kisky 30826df91c3STroy Kisky need_adc *= SR_MULT; 30926df91c3STroy Kisky need_dac *= SR_MULT; 31026df91c3STroy Kisky /* 31126df91c3STroy Kisky * rates given are +/- 1/32 31226df91c3STroy Kisky */ 31326df91c3STroy Kisky adc_l = need_adc - (need_adc >> 5); 31426df91c3STroy Kisky adc_h = need_adc + (need_adc >> 5); 31526df91c3STroy Kisky dac_l = need_dac - (need_dac >> 5); 31626df91c3STroy Kisky dac_h = need_dac + (need_dac >> 5); 3178d702f23SMark Brown for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) { 31826df91c3STroy Kisky int base = mclk / bosr_usb_divisor_table[i]; 31926df91c3STroy Kisky int mask = sr_valid_mask[i]; 3208d702f23SMark Brown for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table); 3218d702f23SMark Brown j++, mask >>= 1) { 32226df91c3STroy Kisky int adc; 32326df91c3STroy Kisky int dac; 32426df91c3STroy Kisky int score; 32526df91c3STroy Kisky if ((mask & 1) == 0) 32626df91c3STroy Kisky continue; 32726df91c3STroy Kisky adc = base * sr_adc_mult_table[j]; 32826df91c3STroy Kisky dac = base * sr_dac_mult_table[j]; 32926df91c3STroy Kisky score = get_score(adc, adc_l, adc_h, need_adc, 33026df91c3STroy Kisky dac, dac_l, dac_h, need_dac); 33126df91c3STroy Kisky if (best_score > score) { 33226df91c3STroy Kisky best_score = score; 33326df91c3STroy Kisky best_i = i; 33426df91c3STroy Kisky best_j = j; 33526df91c3STroy Kisky best_div = 0; 33626df91c3STroy Kisky } 33726df91c3STroy Kisky score = get_score((adc >> 1), adc_l, adc_h, need_adc, 33826df91c3STroy Kisky (dac >> 1), dac_l, dac_h, need_dac); 33926df91c3STroy Kisky /* prefer to have a /2 */ 34026df91c3STroy Kisky if ((score != UINT_MAX) && (best_score >= score)) { 34126df91c3STroy Kisky best_score = score; 34226df91c3STroy Kisky best_i = i; 34326df91c3STroy Kisky best_j = j; 34426df91c3STroy Kisky best_div = 1; 34526df91c3STroy Kisky } 34626df91c3STroy Kisky } 34726df91c3STroy Kisky } 34826df91c3STroy Kisky return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT); 34926df91c3STroy Kisky } 35026df91c3STroy Kisky 3518d702f23SMark Brown #ifdef DEBUG 35226df91c3STroy Kisky static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk, 35326df91c3STroy Kisky u32 *sample_rate_adc, u32 *sample_rate_dac) 35426df91c3STroy Kisky { 35526df91c3STroy Kisky int src = tlv320aic23_read_reg_cache(codec, TLV320AIC23_SRATE); 35626df91c3STroy Kisky int sr = (src >> 2) & 0x0f; 35726df91c3STroy Kisky int val = (mclk / bosr_usb_divisor_table[src & 3]); 35826df91c3STroy Kisky int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; 35926df91c3STroy Kisky int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; 36026df91c3STroy Kisky if (src & TLV320AIC23_CLKIN_HALF) { 36126df91c3STroy Kisky adc >>= 1; 36226df91c3STroy Kisky dac >>= 1; 36326df91c3STroy Kisky } 36426df91c3STroy Kisky *sample_rate_adc = adc; 36526df91c3STroy Kisky *sample_rate_dac = dac; 36626df91c3STroy Kisky } 3678d702f23SMark Brown #endif 36826df91c3STroy Kisky 36926df91c3STroy Kisky static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk, 37026df91c3STroy Kisky u32 sample_rate_adc, u32 sample_rate_dac) 37126df91c3STroy Kisky { 37226df91c3STroy Kisky /* Search for the right sample rate */ 37326df91c3STroy Kisky int data = find_rate(mclk, sample_rate_adc, sample_rate_dac); 37426df91c3STroy Kisky if (data < 0) { 37526df91c3STroy Kisky printk(KERN_ERR "%s:Invalid rate %u,%u requested\n", 37626df91c3STroy Kisky __func__, sample_rate_adc, sample_rate_dac); 37726df91c3STroy Kisky return -EINVAL; 37826df91c3STroy Kisky } 37926df91c3STroy Kisky tlv320aic23_write(codec, TLV320AIC23_SRATE, data); 3808d702f23SMark Brown #ifdef DEBUG 3818d702f23SMark Brown { 3828d702f23SMark Brown u32 adc, dac; 38326df91c3STroy Kisky get_current_sample_rates(codec, mclk, &adc, &dac); 38426df91c3STroy Kisky printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n", 38526df91c3STroy Kisky adc, dac, data); 38626df91c3STroy Kisky } 3878d702f23SMark Brown #endif 38826df91c3STroy Kisky return 0; 38926df91c3STroy Kisky } 39026df91c3STroy Kisky 391c1f27190SArun KS static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, 392dee89c4dSMark Brown struct snd_pcm_hw_params *params, 393dee89c4dSMark Brown struct snd_soc_dai *dai) 394c1f27190SArun KS { 395c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 396f0fba2adSLiam Girdwood struct snd_soc_codec *codec = rtd->codec; 39726df91c3STroy Kisky u16 iface_reg; 39826df91c3STroy Kisky int ret; 399f0fba2adSLiam Girdwood struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 40026df91c3STroy Kisky u32 sample_rate_adc = aic23->requested_adc; 40126df91c3STroy Kisky u32 sample_rate_dac = aic23->requested_dac; 40226df91c3STroy Kisky u32 sample_rate = params_rate(params); 40326df91c3STroy Kisky 40426df91c3STroy Kisky if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 40526df91c3STroy Kisky aic23->requested_dac = sample_rate_dac = sample_rate; 40626df91c3STroy Kisky if (!sample_rate_adc) 40726df91c3STroy Kisky sample_rate_adc = sample_rate; 40826df91c3STroy Kisky } else { 40926df91c3STroy Kisky aic23->requested_adc = sample_rate_adc = sample_rate; 41026df91c3STroy Kisky if (!sample_rate_dac) 41126df91c3STroy Kisky sample_rate_dac = sample_rate; 41226df91c3STroy Kisky } 41326df91c3STroy Kisky ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc, 41426df91c3STroy Kisky sample_rate_dac); 41526df91c3STroy Kisky if (ret < 0) 41626df91c3STroy Kisky return ret; 417c1f27190SArun KS 418c1f27190SArun KS iface_reg = 419c1f27190SArun KS tlv320aic23_read_reg_cache(codec, 420c1f27190SArun KS TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); 421c1f27190SArun KS switch (params_format(params)) { 422c1f27190SArun KS case SNDRV_PCM_FORMAT_S16_LE: 423c1f27190SArun KS break; 424c1f27190SArun KS case SNDRV_PCM_FORMAT_S20_3LE: 425c1f27190SArun KS iface_reg |= (0x01 << 2); 426c1f27190SArun KS break; 427c1f27190SArun KS case SNDRV_PCM_FORMAT_S24_LE: 428c1f27190SArun KS iface_reg |= (0x02 << 2); 429c1f27190SArun KS break; 430c1f27190SArun KS case SNDRV_PCM_FORMAT_S32_LE: 431c1f27190SArun KS iface_reg |= (0x03 << 2); 432c1f27190SArun KS break; 433c1f27190SArun KS } 434c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 435c1f27190SArun KS 436c1f27190SArun KS return 0; 437c1f27190SArun KS } 438c1f27190SArun KS 439dee89c4dSMark Brown static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, 440dee89c4dSMark Brown struct snd_soc_dai *dai) 441c1f27190SArun KS { 442c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 443f0fba2adSLiam Girdwood struct snd_soc_codec *codec = rtd->codec; 444c1f27190SArun KS 445c1f27190SArun KS /* set active */ 446c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001); 447c1f27190SArun KS 448c1f27190SArun KS return 0; 449c1f27190SArun KS } 450c1f27190SArun KS 451dee89c4dSMark Brown static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, 452dee89c4dSMark Brown struct snd_soc_dai *dai) 453c1f27190SArun KS { 454c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 455f0fba2adSLiam Girdwood struct snd_soc_codec *codec = rtd->codec; 456f0fba2adSLiam Girdwood struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 457c1f27190SArun KS 458c1f27190SArun KS /* deactivate */ 459c1f27190SArun KS if (!codec->active) { 460c1f27190SArun KS udelay(50); 461c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); 462c1f27190SArun KS } 46326df91c3STroy Kisky if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 46426df91c3STroy Kisky aic23->requested_dac = 0; 46526df91c3STroy Kisky else 46626df91c3STroy Kisky aic23->requested_adc = 0; 467c1f27190SArun KS } 468c1f27190SArun KS 469c1f27190SArun KS static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) 470c1f27190SArun KS { 471c1f27190SArun KS struct snd_soc_codec *codec = dai->codec; 472c1f27190SArun KS u16 reg; 473c1f27190SArun KS 474c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT); 475c1f27190SArun KS if (mute) 476c1f27190SArun KS reg |= TLV320AIC23_DACM_MUTE; 477c1f27190SArun KS 478c1f27190SArun KS else 479c1f27190SArun KS reg &= ~TLV320AIC23_DACM_MUTE; 480c1f27190SArun KS 481c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT, reg); 482c1f27190SArun KS 483c1f27190SArun KS return 0; 484c1f27190SArun KS } 485c1f27190SArun KS 486c1f27190SArun KS static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, 487c1f27190SArun KS unsigned int fmt) 488c1f27190SArun KS { 489c1f27190SArun KS struct snd_soc_codec *codec = codec_dai->codec; 490c1f27190SArun KS u16 iface_reg; 491c1f27190SArun KS 492c1f27190SArun KS iface_reg = 493c1f27190SArun KS tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03); 494c1f27190SArun KS 495c1f27190SArun KS /* set master/slave audio interface */ 496c1f27190SArun KS switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 497c1f27190SArun KS case SND_SOC_DAIFMT_CBM_CFM: 498c1f27190SArun KS iface_reg |= TLV320AIC23_MS_MASTER; 499c1f27190SArun KS break; 500c1f27190SArun KS case SND_SOC_DAIFMT_CBS_CFS: 501c1f27190SArun KS break; 502c1f27190SArun KS default: 503c1f27190SArun KS return -EINVAL; 504c1f27190SArun KS 505c1f27190SArun KS } 506c1f27190SArun KS 507c1f27190SArun KS /* interface format */ 508c1f27190SArun KS switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 509c1f27190SArun KS case SND_SOC_DAIFMT_I2S: 510c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_I2S; 511c1f27190SArun KS break; 512894bf92fSPeter Ujfalusi case SND_SOC_DAIFMT_DSP_A: 513894bf92fSPeter Ujfalusi iface_reg |= TLV320AIC23_LRP_ON; 514bd25867aSJarkko Nikula case SND_SOC_DAIFMT_DSP_B: 515c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_DSP; 516c1f27190SArun KS break; 517c1f27190SArun KS case SND_SOC_DAIFMT_RIGHT_J: 518c1f27190SArun KS break; 519c1f27190SArun KS case SND_SOC_DAIFMT_LEFT_J: 520c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_LJUST; 521c1f27190SArun KS break; 522c1f27190SArun KS default: 523c1f27190SArun KS return -EINVAL; 524c1f27190SArun KS 525c1f27190SArun KS } 526c1f27190SArun KS 527c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 528c1f27190SArun KS 529c1f27190SArun KS return 0; 530c1f27190SArun KS } 531c1f27190SArun KS 532c1f27190SArun KS static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, 533c1f27190SArun KS int clk_id, unsigned int freq, int dir) 534c1f27190SArun KS { 535f0fba2adSLiam Girdwood struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai); 53626df91c3STroy Kisky aic23->mclk = freq; 537c1f27190SArun KS return 0; 538c1f27190SArun KS } 539c1f27190SArun KS 540c1f27190SArun KS static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, 541c1f27190SArun KS enum snd_soc_bias_level level) 542c1f27190SArun KS { 543c1f27190SArun KS u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f; 544c1f27190SArun KS 545c1f27190SArun KS switch (level) { 546c1f27190SArun KS case SND_SOC_BIAS_ON: 547c1f27190SArun KS /* vref/mid, osc on, dac unmute */ 5483d5a4516SEric Bénard reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \ 5493d5a4516SEric Bénard TLV320AIC23_DAC_OFF); 550c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_PWR, reg); 551c1f27190SArun KS break; 552c1f27190SArun KS case SND_SOC_BIAS_PREPARE: 553c1f27190SArun KS break; 554c1f27190SArun KS case SND_SOC_BIAS_STANDBY: 555c1f27190SArun KS /* everything off except vref/vmid, */ 5563d5a4516SEric Bénard tlv320aic23_write(codec, TLV320AIC23_PWR, reg | \ 5573d5a4516SEric Bénard TLV320AIC23_CLK_OFF); 558c1f27190SArun KS break; 559c1f27190SArun KS case SND_SOC_BIAS_OFF: 560c1f27190SArun KS /* everything off, dac mute, inactive */ 561c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); 562c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff); 563c1f27190SArun KS break; 564c1f27190SArun KS } 565ce6120ccSLiam Girdwood codec->dapm.bias_level = level; 566c1f27190SArun KS return 0; 567c1f27190SArun KS } 568c1f27190SArun KS 569c1f27190SArun KS #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 570c1f27190SArun KS #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 571c1f27190SArun KS SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 572c1f27190SArun KS 5736335d055SEric Miao static struct snd_soc_dai_ops tlv320aic23_dai_ops = { 5746335d055SEric Miao .prepare = tlv320aic23_pcm_prepare, 5756335d055SEric Miao .hw_params = tlv320aic23_hw_params, 5766335d055SEric Miao .shutdown = tlv320aic23_shutdown, 5776335d055SEric Miao .digital_mute = tlv320aic23_mute, 5786335d055SEric Miao .set_fmt = tlv320aic23_set_dai_fmt, 5796335d055SEric Miao .set_sysclk = tlv320aic23_set_dai_sysclk, 5806335d055SEric Miao }; 5816335d055SEric Miao 582f0fba2adSLiam Girdwood static struct snd_soc_dai_driver tlv320aic23_dai = { 583f0fba2adSLiam Girdwood .name = "tlv320aic23-hifi", 584c1f27190SArun KS .playback = { 585c1f27190SArun KS .stream_name = "Playback", 586c1f27190SArun KS .channels_min = 2, 587c1f27190SArun KS .channels_max = 2, 588c1f27190SArun KS .rates = AIC23_RATES, 589c1f27190SArun KS .formats = AIC23_FORMATS,}, 590c1f27190SArun KS .capture = { 591c1f27190SArun KS .stream_name = "Capture", 592c1f27190SArun KS .channels_min = 2, 593c1f27190SArun KS .channels_max = 2, 594c1f27190SArun KS .rates = AIC23_RATES, 595c1f27190SArun KS .formats = AIC23_FORMATS,}, 5966335d055SEric Miao .ops = &tlv320aic23_dai_ops, 597c1f27190SArun KS }; 598c1f27190SArun KS 599f0fba2adSLiam Girdwood static int tlv320aic23_suspend(struct snd_soc_codec *codec, 600c1f27190SArun KS pm_message_t state) 601c1f27190SArun KS { 602c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 603c1f27190SArun KS 604c1f27190SArun KS return 0; 605c1f27190SArun KS } 606c1f27190SArun KS 607f0fba2adSLiam Girdwood static int tlv320aic23_resume(struct snd_soc_codec *codec) 608c1f27190SArun KS { 609c1f27190SArun KS u16 reg; 610c1f27190SArun KS 611c1f27190SArun KS /* Sync reg_cache with the hardware */ 6123e59aaa7SAnuj Aggarwal for (reg = 0; reg <= TLV320AIC23_ACTIVE; reg++) { 613c1f27190SArun KS u16 val = tlv320aic23_read_reg_cache(codec, reg); 614c1f27190SArun KS tlv320aic23_write(codec, reg, val); 615c1f27190SArun KS } 616c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 617c1f27190SArun KS 618c1f27190SArun KS return 0; 619c1f27190SArun KS } 620c1f27190SArun KS 621f0fba2adSLiam Girdwood static int tlv320aic23_probe(struct snd_soc_codec *codec) 622c1f27190SArun KS { 623f0fba2adSLiam Girdwood struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 624f0fba2adSLiam Girdwood int reg; 625c1f27190SArun KS 626f0fba2adSLiam Girdwood printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION); 627f0fba2adSLiam Girdwood codec->control_data = aic23->control_data; 628f0fba2adSLiam Girdwood codec->hw_write = (hw_write_t)i2c_master_send; 629f0fba2adSLiam Girdwood codec->hw_read = NULL; 630c1f27190SArun KS 631c1f27190SArun KS /* Reset codec */ 632c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RESET, 0); 633c1f27190SArun KS 634c1f27190SArun KS /* power on device */ 635c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 636c1f27190SArun KS 637c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); 638c1f27190SArun KS 639c1f27190SArun KS /* Unmute input */ 640c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL); 641c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_LINVOL, 642c1f27190SArun KS (reg & (~TLV320AIC23_LIM_MUTED)) | 643c1f27190SArun KS (TLV320AIC23_LRS_ENABLED)); 644c1f27190SArun KS 645c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL); 646c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RINVOL, 647c1f27190SArun KS (reg & (~TLV320AIC23_LIM_MUTED)) | 648c1f27190SArun KS TLV320AIC23_LRS_ENABLED); 649c1f27190SArun KS 650c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG); 651c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ANLG, 652c1f27190SArun KS (reg) & (~TLV320AIC23_BYPASS_ON) & 653c1f27190SArun KS (~TLV320AIC23_MICM_MUTED)); 654c1f27190SArun KS 655c1f27190SArun KS /* Default output volume */ 656c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_LCHNVOL, 657c1f27190SArun KS TLV320AIC23_DEFAULT_OUT_VOL & 658c1f27190SArun KS TLV320AIC23_OUT_VOL_MASK); 659c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RCHNVOL, 660c1f27190SArun KS TLV320AIC23_DEFAULT_OUT_VOL & 661c1f27190SArun KS TLV320AIC23_OUT_VOL_MASK); 662c1f27190SArun KS 663c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1); 664c1f27190SArun KS 6653e8e1952SIan Molton snd_soc_add_controls(codec, tlv320aic23_snd_controls, 6663e8e1952SIan Molton ARRAY_SIZE(tlv320aic23_snd_controls)); 667c1f27190SArun KS 668f0fba2adSLiam Girdwood return 0; 669c1f27190SArun KS } 670f0fba2adSLiam Girdwood 671f0fba2adSLiam Girdwood static int tlv320aic23_remove(struct snd_soc_codec *codec) 672f0fba2adSLiam Girdwood { 673f0fba2adSLiam Girdwood tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 674f0fba2adSLiam Girdwood return 0; 675f0fba2adSLiam Girdwood } 676f0fba2adSLiam Girdwood 677f0fba2adSLiam Girdwood static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = { 678f0fba2adSLiam Girdwood .reg_cache_size = ARRAY_SIZE(tlv320aic23_reg), 679f0fba2adSLiam Girdwood .reg_word_size = sizeof(u16), 680f0fba2adSLiam Girdwood .reg_cache_default = tlv320aic23_reg, 681f0fba2adSLiam Girdwood .probe = tlv320aic23_probe, 682f0fba2adSLiam Girdwood .remove = tlv320aic23_remove, 683f0fba2adSLiam Girdwood .suspend = tlv320aic23_suspend, 684f0fba2adSLiam Girdwood .resume = tlv320aic23_resume, 685f0fba2adSLiam Girdwood .read = tlv320aic23_read_reg_cache, 686f0fba2adSLiam Girdwood .write = tlv320aic23_write, 687f0fba2adSLiam Girdwood .set_bias_level = tlv320aic23_set_bias_level, 688a7dca707SLu Guanqun .dapm_widgets = tlv320aic23_dapm_widgets, 689a7dca707SLu Guanqun .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), 690a7dca707SLu Guanqun .dapm_routes = tlv320aic23_intercon, 691a7dca707SLu Guanqun .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon), 692f0fba2adSLiam Girdwood }; 693c1f27190SArun KS 694c1f27190SArun KS #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 695c1f27190SArun KS /* 696c1f27190SArun KS * If the i2c layer weren't so broken, we could pass this kind of data 697c1f27190SArun KS * around 698c1f27190SArun KS */ 699c1f27190SArun KS static int tlv320aic23_codec_probe(struct i2c_client *i2c, 700c1f27190SArun KS const struct i2c_device_id *i2c_id) 701c1f27190SArun KS { 702f0fba2adSLiam Girdwood struct aic23 *aic23; 703c1f27190SArun KS int ret; 704c1f27190SArun KS 705c1f27190SArun KS if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 706c1f27190SArun KS return -EINVAL; 707c1f27190SArun KS 708f0fba2adSLiam Girdwood aic23 = kzalloc(sizeof(struct aic23), GFP_KERNEL); 709f0fba2adSLiam Girdwood if (aic23 == NULL) 710f0fba2adSLiam Girdwood return -ENOMEM; 711c1f27190SArun KS 712f0fba2adSLiam Girdwood i2c_set_clientdata(i2c, aic23); 713f0fba2adSLiam Girdwood aic23->control_data = i2c; 714f0fba2adSLiam Girdwood aic23->control_type = SND_SOC_I2C; 715c1f27190SArun KS 716f0fba2adSLiam Girdwood ret = snd_soc_register_codec(&i2c->dev, 717f0fba2adSLiam Girdwood &soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1); 718f0fba2adSLiam Girdwood if (ret < 0) 719f0fba2adSLiam Girdwood kfree(aic23); 720c1f27190SArun KS return ret; 721c1f27190SArun KS } 722c1f27190SArun KS static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c) 723c1f27190SArun KS { 724f0fba2adSLiam Girdwood snd_soc_unregister_codec(&i2c->dev); 725f0fba2adSLiam Girdwood kfree(i2c_get_clientdata(i2c)); 726c1f27190SArun KS return 0; 727c1f27190SArun KS } 728c1f27190SArun KS 729c1f27190SArun KS static const struct i2c_device_id tlv320aic23_id[] = { 730c1f27190SArun KS {"tlv320aic23", 0}, 731c1f27190SArun KS {} 732c1f27190SArun KS }; 733c1f27190SArun KS 734c1f27190SArun KS MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); 735c1f27190SArun KS 736c1f27190SArun KS static struct i2c_driver tlv320aic23_i2c_driver = { 737c1f27190SArun KS .driver = { 738f0fba2adSLiam Girdwood .name = "tlv320aic23-codec", 739c1f27190SArun KS }, 740c1f27190SArun KS .probe = tlv320aic23_codec_probe, 741c1f27190SArun KS .remove = __exit_p(tlv320aic23_i2c_remove), 742c1f27190SArun KS .id_table = tlv320aic23_id, 743c1f27190SArun KS }; 744c1f27190SArun KS 745c1f27190SArun KS #endif 746c1f27190SArun KS 747c9b3a40fSTakashi Iwai static int __init tlv320aic23_modinit(void) 74864089b84SMark Brown { 749f0fba2adSLiam Girdwood int ret; 750f0fba2adSLiam Girdwood #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 751f0fba2adSLiam Girdwood ret = i2c_add_driver(&tlv320aic23_i2c_driver); 752f0fba2adSLiam Girdwood if (ret != 0) { 753f0fba2adSLiam Girdwood printk(KERN_ERR "Failed to register TLV320AIC23 I2C driver: %d\n", 754f0fba2adSLiam Girdwood ret); 755f0fba2adSLiam Girdwood } 756f0fba2adSLiam Girdwood #endif 757f0fba2adSLiam Girdwood return ret; 75864089b84SMark Brown } 75964089b84SMark Brown module_init(tlv320aic23_modinit); 76064089b84SMark Brown 76164089b84SMark Brown static void __exit tlv320aic23_exit(void) 76264089b84SMark Brown { 763f0fba2adSLiam Girdwood #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 764f0fba2adSLiam Girdwood i2c_del_driver(&tlv320aic23_i2c_driver); 765f0fba2adSLiam Girdwood #endif 76664089b84SMark Brown } 76764089b84SMark Brown module_exit(tlv320aic23_exit); 76864089b84SMark Brown 769c1f27190SArun KS MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); 770c1f27190SArun KS MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 771c1f27190SArun KS MODULE_LICENSE("GPL"); 772