Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 1 | /* |
| 2 | * wm8731.c -- WM8731 ALSA SoC Audio driver |
| 3 | * |
| 4 | * Copyright 2005 Openedhand Ltd. |
| 5 | * |
| 6 | * Author: Richard Purdie <richard@openedhand.com> |
| 7 | * |
| 8 | * Based on wm8753.c by Liam Girdwood |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/moduleparam.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/delay.h> |
| 19 | #include <linux/pm.h> |
| 20 | #include <linux/i2c.h> |
| 21 | #include <linux/platform_device.h> |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 22 | #include <linux/regulator/consumer.h> |
Cliff Cai | d2a4035 | 2008-09-01 18:47:03 +0100 | [diff] [blame] | 23 | #include <linux/spi/spi.h> |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 24 | #include <sound/core.h> |
| 25 | #include <sound/pcm.h> |
| 26 | #include <sound/pcm_params.h> |
| 27 | #include <sound/soc.h> |
| 28 | #include <sound/soc-dapm.h> |
| 29 | #include <sound/initval.h> |
Mark Brown | d00efa6 | 2009-07-08 16:53:12 +0100 | [diff] [blame] | 30 | #include <sound/tlv.h> |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 31 | |
| 32 | #include "wm8731.h" |
| 33 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 34 | static struct snd_soc_codec *wm8731_codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 35 | struct snd_soc_codec_device soc_codec_dev_wm8731; |
| 36 | |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 37 | #define WM8731_NUM_SUPPLIES 4 |
| 38 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { |
| 39 | "AVDD", |
| 40 | "HPVDD", |
| 41 | "DCVDD", |
| 42 | "DBVDD", |
| 43 | }; |
| 44 | |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 45 | /* codec private data */ |
| 46 | struct wm8731_priv { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 47 | struct snd_soc_codec codec; |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 48 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 49 | u16 reg_cache[WM8731_CACHEREGNUM]; |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 50 | unsigned int sysclk; |
| 51 | }; |
| 52 | |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 53 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 54 | /* |
| 55 | * wm8731 register cache |
| 56 | * We can't read the WM8731 register space when we are |
| 57 | * using 2 wire for device control, so we cache them instead. |
| 58 | * There is no point in caching the reset register |
| 59 | */ |
| 60 | static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 61 | 0x0097, 0x0097, 0x0079, 0x0079, |
| 62 | 0x000a, 0x0008, 0x009f, 0x000a, |
| 63 | 0x0000, 0x0000 |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 64 | }; |
| 65 | |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 66 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 67 | |
| 68 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; |
| 69 | static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; |
| 70 | |
| 71 | static const struct soc_enum wm8731_enum[] = { |
| 72 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select), |
| 73 | SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph), |
| 74 | }; |
| 75 | |
Mark Brown | d00efa6 | 2009-07-08 16:53:12 +0100 | [diff] [blame] | 76 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
| 77 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); |
| 78 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
| 79 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 80 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
| 81 | |
Mark Brown | d00efa6 | 2009-07-08 16:53:12 +0100 | [diff] [blame] | 82 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
| 83 | 0, 127, 0, out_tlv), |
Liam Girdwood | bd903b6 | 2006-11-09 16:35:01 +0100 | [diff] [blame] | 84 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
| 85 | 7, 1, 0), |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 86 | |
Mark Brown | d00efa6 | 2009-07-08 16:53:12 +0100 | [diff] [blame] | 87 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
| 88 | in_tlv), |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 89 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
| 90 | |
| 91 | SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0), |
Mark Brown | ef38ed8 | 2009-07-08 17:05:43 +0100 | [diff] [blame] | 92 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 93 | |
Mark Brown | d00efa6 | 2009-07-08 16:53:12 +0100 | [diff] [blame] | 94 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
| 95 | sidetone_tlv), |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 96 | |
| 97 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), |
| 98 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), |
| 99 | |
| 100 | SOC_ENUM("Playback De-emphasis", wm8731_enum[1]), |
| 101 | }; |
| 102 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 103 | /* Output Mixer */ |
| 104 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { |
| 105 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), |
| 106 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), |
| 107 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), |
| 108 | }; |
| 109 | |
| 110 | /* Input mux */ |
| 111 | static const struct snd_kcontrol_new wm8731_input_mux_controls = |
| 112 | SOC_DAPM_ENUM("Input Select", wm8731_enum[0]); |
| 113 | |
| 114 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { |
| 115 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, |
| 116 | &wm8731_output_mixer_controls[0], |
| 117 | ARRAY_SIZE(wm8731_output_mixer_controls)), |
| 118 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), |
| 119 | SND_SOC_DAPM_OUTPUT("LOUT"), |
| 120 | SND_SOC_DAPM_OUTPUT("LHPOUT"), |
| 121 | SND_SOC_DAPM_OUTPUT("ROUT"), |
| 122 | SND_SOC_DAPM_OUTPUT("RHPOUT"), |
| 123 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), |
| 124 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), |
| 125 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), |
| 126 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), |
| 127 | SND_SOC_DAPM_INPUT("MICIN"), |
| 128 | SND_SOC_DAPM_INPUT("RLINEIN"), |
| 129 | SND_SOC_DAPM_INPUT("LLINEIN"), |
| 130 | }; |
| 131 | |
Mark Brown | a65f056 | 2008-05-13 14:54:43 +0200 | [diff] [blame] | 132 | static const struct snd_soc_dapm_route intercon[] = { |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 133 | /* output mixer */ |
| 134 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, |
| 135 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, |
| 136 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, |
| 137 | |
| 138 | /* outputs */ |
| 139 | {"RHPOUT", NULL, "Output Mixer"}, |
| 140 | {"ROUT", NULL, "Output Mixer"}, |
| 141 | {"LHPOUT", NULL, "Output Mixer"}, |
| 142 | {"LOUT", NULL, "Output Mixer"}, |
| 143 | |
| 144 | /* input mux */ |
| 145 | {"Input Mux", "Line In", "Line Input"}, |
| 146 | {"Input Mux", "Mic", "Mic Bias"}, |
| 147 | {"ADC", NULL, "Input Mux"}, |
| 148 | |
| 149 | /* inputs */ |
| 150 | {"Line Input", NULL, "LLINEIN"}, |
| 151 | {"Line Input", NULL, "RLINEIN"}, |
| 152 | {"Mic Bias", NULL, "MICIN"}, |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 153 | }; |
| 154 | |
| 155 | static int wm8731_add_widgets(struct snd_soc_codec *codec) |
| 156 | { |
Mark Brown | a65f056 | 2008-05-13 14:54:43 +0200 | [diff] [blame] | 157 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
| 158 | ARRAY_SIZE(wm8731_dapm_widgets)); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 159 | |
Mark Brown | a65f056 | 2008-05-13 14:54:43 +0200 | [diff] [blame] | 160 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 161 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | struct _coeff_div { |
| 166 | u32 mclk; |
| 167 | u32 rate; |
| 168 | u16 fs; |
| 169 | u8 sr:4; |
| 170 | u8 bosr:1; |
| 171 | u8 usb:1; |
| 172 | }; |
| 173 | |
| 174 | /* codec mclk clock divider coefficients */ |
| 175 | static const struct _coeff_div coeff_div[] = { |
| 176 | /* 48k */ |
| 177 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, |
| 178 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, |
| 179 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, |
| 180 | |
| 181 | /* 32k */ |
| 182 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, |
| 183 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, |
Frank Mandarino | 298a2c7 | 2007-01-31 10:02:56 +0100 | [diff] [blame] | 184 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 185 | |
| 186 | /* 8k */ |
| 187 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, |
| 188 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, |
| 189 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, |
| 190 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, |
| 191 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, |
| 192 | |
| 193 | /* 96k */ |
| 194 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, |
| 195 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, |
| 196 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, |
| 197 | |
| 198 | /* 44.1k */ |
| 199 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, |
| 200 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, |
| 201 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, |
| 202 | |
| 203 | /* 88.2k */ |
| 204 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, |
| 205 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, |
| 206 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, |
| 207 | }; |
| 208 | |
| 209 | static inline int get_coeff(int mclk, int rate) |
| 210 | { |
| 211 | int i; |
| 212 | |
| 213 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| 214 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
| 215 | return i; |
| 216 | } |
| 217 | return 0; |
| 218 | } |
| 219 | |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 220 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 221 | struct snd_pcm_hw_params *params, |
| 222 | struct snd_soc_dai *dai) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 223 | { |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 224 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 225 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 226 | struct snd_soc_codec *codec = socdev->card->codec; |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 227 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 228 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 229 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
| 230 | u16 srate = (coeff_div[i].sr << 2) | |
| 231 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 232 | |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 233 | snd_soc_write(codec, WM8731_SRATE, srate); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 234 | |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 235 | /* bit size */ |
| 236 | switch (params_format(params)) { |
| 237 | case SNDRV_PCM_FORMAT_S16_LE: |
| 238 | break; |
| 239 | case SNDRV_PCM_FORMAT_S20_3LE: |
| 240 | iface |= 0x0004; |
| 241 | break; |
| 242 | case SNDRV_PCM_FORMAT_S24_LE: |
| 243 | iface |= 0x0008; |
| 244 | break; |
| 245 | } |
| 246 | |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 247 | snd_soc_write(codec, WM8731_IFACE, iface); |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 248 | return 0; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 249 | } |
| 250 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 251 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
| 252 | struct snd_soc_dai *dai) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 253 | { |
| 254 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 255 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 256 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 257 | |
| 258 | /* set active */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 259 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 260 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 261 | return 0; |
| 262 | } |
| 263 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 264 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
| 265 | struct snd_soc_dai *dai) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 266 | { |
| 267 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 268 | struct snd_soc_device *socdev = rtd->socdev; |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 269 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 270 | |
| 271 | /* deactivate */ |
| 272 | if (!codec->active) { |
| 273 | udelay(50); |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 274 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 275 | } |
| 276 | } |
| 277 | |
Liam Girdwood | e550e17 | 2008-07-07 16:07:52 +0100 | [diff] [blame] | 278 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 279 | { |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 280 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 281 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 282 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 283 | if (mute) |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 284 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 285 | else |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 286 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 287 | return 0; |
| 288 | } |
| 289 | |
Liam Girdwood | e550e17 | 2008-07-07 16:07:52 +0100 | [diff] [blame] | 290 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 291 | int clk_id, unsigned int freq, int dir) |
| 292 | { |
| 293 | struct snd_soc_codec *codec = codec_dai->codec; |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 294 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 295 | |
| 296 | switch (freq) { |
| 297 | case 11289600: |
| 298 | case 12000000: |
| 299 | case 12288000: |
| 300 | case 16934400: |
| 301 | case 18432000: |
| 302 | wm8731->sysclk = freq; |
| 303 | return 0; |
| 304 | } |
| 305 | return -EINVAL; |
| 306 | } |
| 307 | |
| 308 | |
Liam Girdwood | e550e17 | 2008-07-07 16:07:52 +0100 | [diff] [blame] | 309 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 310 | unsigned int fmt) |
| 311 | { |
| 312 | struct snd_soc_codec *codec = codec_dai->codec; |
| 313 | u16 iface = 0; |
| 314 | |
| 315 | /* set master/slave audio interface */ |
| 316 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 317 | case SND_SOC_DAIFMT_CBM_CFM: |
| 318 | iface |= 0x0040; |
| 319 | break; |
| 320 | case SND_SOC_DAIFMT_CBS_CFS: |
| 321 | break; |
| 322 | default: |
| 323 | return -EINVAL; |
| 324 | } |
| 325 | |
| 326 | /* interface format */ |
| 327 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 328 | case SND_SOC_DAIFMT_I2S: |
| 329 | iface |= 0x0002; |
| 330 | break; |
| 331 | case SND_SOC_DAIFMT_RIGHT_J: |
| 332 | break; |
| 333 | case SND_SOC_DAIFMT_LEFT_J: |
| 334 | iface |= 0x0001; |
| 335 | break; |
| 336 | case SND_SOC_DAIFMT_DSP_A: |
| 337 | iface |= 0x0003; |
| 338 | break; |
| 339 | case SND_SOC_DAIFMT_DSP_B: |
| 340 | iface |= 0x0013; |
| 341 | break; |
| 342 | default: |
| 343 | return -EINVAL; |
| 344 | } |
| 345 | |
| 346 | /* clock inversion */ |
| 347 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 348 | case SND_SOC_DAIFMT_NB_NF: |
| 349 | break; |
| 350 | case SND_SOC_DAIFMT_IB_IF: |
| 351 | iface |= 0x0090; |
| 352 | break; |
| 353 | case SND_SOC_DAIFMT_IB_NF: |
| 354 | iface |= 0x0080; |
| 355 | break; |
| 356 | case SND_SOC_DAIFMT_NB_IF: |
| 357 | iface |= 0x0010; |
| 358 | break; |
| 359 | default: |
| 360 | return -EINVAL; |
| 361 | } |
| 362 | |
| 363 | /* set iface */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 364 | snd_soc_write(codec, WM8731_IFACE, iface); |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 365 | return 0; |
| 366 | } |
| 367 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 368 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
| 369 | enum snd_soc_bias_level level) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 370 | { |
Mark Brown | 06ae998 | 2010-05-07 19:14:45 +0100 | [diff] [blame^] | 371 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
| 372 | int i, ret; |
| 373 | u8 data[2]; |
| 374 | u16 *cache = codec->reg_cache; |
Mark Brown | 22d22ee | 2009-02-16 19:20:15 +0000 | [diff] [blame] | 375 | u16 reg; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 376 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 377 | switch (level) { |
| 378 | case SND_SOC_BIAS_ON: |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 379 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 380 | case SND_SOC_BIAS_PREPARE: |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 381 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 382 | case SND_SOC_BIAS_STANDBY: |
Mark Brown | 06ae998 | 2010-05-07 19:14:45 +0100 | [diff] [blame^] | 383 | if (codec->bias_level == SND_SOC_BIAS_OFF) { |
| 384 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
| 385 | wm8731->supplies); |
| 386 | if (ret != 0) |
| 387 | return ret; |
| 388 | |
| 389 | /* Sync reg_cache with the hardware */ |
| 390 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { |
| 391 | if (cache[i] == wm8731_reg[i]) |
| 392 | continue; |
| 393 | |
| 394 | data[0] = (i << 1) | ((cache[i] >> 8) |
| 395 | & 0x0001); |
| 396 | data[1] = cache[i] & 0x00ff; |
| 397 | codec->hw_write(codec->control_data, data, 2); |
| 398 | } |
| 399 | } |
| 400 | |
Mark Brown | 22d22ee | 2009-02-16 19:20:15 +0000 | [diff] [blame] | 401 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 402 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
| 403 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 404 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 405 | case SND_SOC_BIAS_OFF: |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 406 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
| 407 | snd_soc_write(codec, WM8731_PWR, 0xffff); |
Mark Brown | 06ae998 | 2010-05-07 19:14:45 +0100 | [diff] [blame^] | 408 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
| 409 | wm8731->supplies); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 410 | break; |
| 411 | } |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 412 | codec->bias_level = level; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 413 | return 0; |
| 414 | } |
| 415 | |
Bill Gatliff | e135443 | 2010-04-09 18:08:08 +0100 | [diff] [blame] | 416 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 417 | |
| 418 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| 419 | SNDRV_PCM_FMTBIT_S24_LE) |
| 420 | |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 421 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
| 422 | .prepare = wm8731_pcm_prepare, |
| 423 | .hw_params = wm8731_hw_params, |
| 424 | .shutdown = wm8731_shutdown, |
| 425 | .digital_mute = wm8731_mute, |
| 426 | .set_sysclk = wm8731_set_dai_sysclk, |
| 427 | .set_fmt = wm8731_set_dai_fmt, |
| 428 | }; |
| 429 | |
Liam Girdwood | e550e17 | 2008-07-07 16:07:52 +0100 | [diff] [blame] | 430 | struct snd_soc_dai wm8731_dai = { |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 431 | .name = "WM8731", |
| 432 | .playback = { |
| 433 | .stream_name = "Playback", |
| 434 | .channels_min = 1, |
| 435 | .channels_max = 2, |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 436 | .rates = WM8731_RATES, |
| 437 | .formats = WM8731_FORMATS,}, |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 438 | .capture = { |
| 439 | .stream_name = "Capture", |
| 440 | .channels_min = 1, |
| 441 | .channels_max = 2, |
Frank Mandarino | b36d61d | 2007-02-02 17:14:56 +0100 | [diff] [blame] | 442 | .rates = WM8731_RATES, |
| 443 | .formats = WM8731_FORMATS,}, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 444 | .ops = &wm8731_dai_ops, |
Mark Brown | 4934482 | 2009-07-08 17:48:12 +0100 | [diff] [blame] | 445 | .symmetric_rates = 1, |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 446 | }; |
| 447 | EXPORT_SYMBOL_GPL(wm8731_dai); |
| 448 | |
Mark Brown | b3b50b3 | 2009-06-13 22:30:18 +0100 | [diff] [blame] | 449 | #ifdef CONFIG_PM |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 450 | static int wm8731_suspend(struct platform_device *pdev, pm_message_t state) |
| 451 | { |
| 452 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 453 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 454 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 455 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
Mark Brown | 06ae998 | 2010-05-07 19:14:45 +0100 | [diff] [blame^] | 456 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | static int wm8731_resume(struct platform_device *pdev) |
| 461 | { |
| 462 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 463 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 464 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 465 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 466 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 467 | return 0; |
| 468 | } |
Mark Brown | b3b50b3 | 2009-06-13 22:30:18 +0100 | [diff] [blame] | 469 | #else |
| 470 | #define wm8731_suspend NULL |
| 471 | #define wm8731_resume NULL |
| 472 | #endif |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 473 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 474 | static int wm8731_probe(struct platform_device *pdev) |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 475 | { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 476 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
| 477 | struct snd_soc_codec *codec; |
| 478 | int ret = 0; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 479 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 480 | if (wm8731_codec == NULL) { |
| 481 | dev_err(&pdev->dev, "Codec device not registered\n"); |
| 482 | return -ENODEV; |
| 483 | } |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 484 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 485 | socdev->card->codec = wm8731_codec; |
| 486 | codec = wm8731_codec; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 487 | |
| 488 | /* register pcms */ |
| 489 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); |
| 490 | if (ret < 0) { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 491 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
Liam Girdwood | e35115a | 2007-01-31 10:02:23 +0100 | [diff] [blame] | 492 | goto pcm_err; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 493 | } |
| 494 | |
Ian Molton | 3e8e195 | 2009-01-09 00:23:21 +0000 | [diff] [blame] | 495 | snd_soc_add_controls(codec, wm8731_snd_controls, |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 496 | ARRAY_SIZE(wm8731_snd_controls)); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 497 | wm8731_add_widgets(codec); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 498 | |
| 499 | return ret; |
Liam Girdwood | e35115a | 2007-01-31 10:02:23 +0100 | [diff] [blame] | 500 | |
Liam Girdwood | e35115a | 2007-01-31 10:02:23 +0100 | [diff] [blame] | 501 | pcm_err: |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 502 | return ret; |
| 503 | } |
| 504 | |
| 505 | /* power down chip */ |
| 506 | static int wm8731_remove(struct platform_device *pdev) |
| 507 | { |
| 508 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 509 | |
| 510 | snd_soc_free_pcms(socdev); |
| 511 | snd_soc_dapm_free(socdev); |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 512 | |
| 513 | return 0; |
| 514 | } |
| 515 | |
| 516 | struct snd_soc_codec_device soc_codec_dev_wm8731 = { |
| 517 | .probe = wm8731_probe, |
| 518 | .remove = wm8731_remove, |
| 519 | .suspend = wm8731_suspend, |
| 520 | .resume = wm8731_resume, |
| 521 | }; |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 522 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8731); |
| 523 | |
Mark Brown | 7084a42 | 2009-07-10 22:24:27 +0100 | [diff] [blame] | 524 | static int wm8731_register(struct wm8731_priv *wm8731, |
| 525 | enum snd_soc_control_type control) |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 526 | { |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 527 | int ret, i; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 528 | struct snd_soc_codec *codec = &wm8731->codec; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 529 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 530 | if (wm8731_codec) { |
| 531 | dev_err(codec->dev, "Another WM8731 is registered\n"); |
Mark Brown | fe5422f | 2009-07-05 15:18:01 +0100 | [diff] [blame] | 532 | ret = -EINVAL; |
| 533 | goto err; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 534 | } |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 535 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 536 | mutex_init(&codec->mutex); |
| 537 | INIT_LIST_HEAD(&codec->dapm_widgets); |
| 538 | INIT_LIST_HEAD(&codec->dapm_paths); |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 539 | |
Mark Brown | b2c812e | 2010-04-14 15:35:19 +0900 | [diff] [blame] | 540 | snd_soc_codec_set_drvdata(codec, wm8731); |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 541 | codec->name = "WM8731"; |
| 542 | codec->owner = THIS_MODULE; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 543 | codec->bias_level = SND_SOC_BIAS_OFF; |
| 544 | codec->set_bias_level = wm8731_set_bias_level; |
| 545 | codec->dai = &wm8731_dai; |
| 546 | codec->num_dai = 1; |
| 547 | codec->reg_cache_size = WM8731_CACHEREGNUM; |
| 548 | codec->reg_cache = &wm8731->reg_cache; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 549 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 550 | memcpy(codec->reg_cache, wm8731_reg, sizeof(wm8731_reg)); |
| 551 | |
Mark Brown | 7084a42 | 2009-07-10 22:24:27 +0100 | [diff] [blame] | 552 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 553 | if (ret < 0) { |
| 554 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); |
| 555 | goto err; |
| 556 | } |
| 557 | |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 558 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
| 559 | wm8731->supplies[i].supply = wm8731_supply_names[i]; |
| 560 | |
| 561 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), |
| 562 | wm8731->supplies); |
| 563 | if (ret != 0) { |
| 564 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); |
| 565 | goto err; |
| 566 | } |
| 567 | |
| 568 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
| 569 | wm8731->supplies); |
| 570 | if (ret != 0) { |
| 571 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); |
| 572 | goto err_regulator_get; |
| 573 | } |
| 574 | |
Mark Brown | 519cf2d | 2009-02-18 21:06:01 +0000 | [diff] [blame] | 575 | ret = wm8731_reset(codec); |
| 576 | if (ret < 0) { |
Mark Brown | fe5422f | 2009-07-05 15:18:01 +0100 | [diff] [blame] | 577 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 578 | goto err_regulator_enable; |
Mark Brown | 519cf2d | 2009-02-18 21:06:01 +0000 | [diff] [blame] | 579 | } |
| 580 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 581 | wm8731_dai.dev = codec->dev; |
| 582 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 583 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 584 | |
| 585 | /* Latch the update bits */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 586 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
| 587 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); |
| 588 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); |
| 589 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 590 | |
Mark Brown | ce3bdaa | 2009-02-19 14:29:49 +0000 | [diff] [blame] | 591 | /* Disable bypass path by default */ |
Mark Brown | 17a52fd | 2009-07-05 17:24:50 +0100 | [diff] [blame] | 592 | snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0); |
Mark Brown | ce3bdaa | 2009-02-19 14:29:49 +0000 | [diff] [blame] | 593 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 594 | wm8731_codec = codec; |
| 595 | |
| 596 | ret = snd_soc_register_codec(codec); |
| 597 | if (ret != 0) { |
| 598 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 599 | goto err_regulator_enable; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 600 | } |
| 601 | |
| 602 | ret = snd_soc_register_dai(&wm8731_dai); |
| 603 | if (ret != 0) { |
| 604 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); |
| 605 | snd_soc_unregister_codec(codec); |
Mark Brown | fe5422f | 2009-07-05 15:18:01 +0100 | [diff] [blame] | 606 | goto err_codec; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 607 | } |
| 608 | |
Mark Brown | 06ae998 | 2010-05-07 19:14:45 +0100 | [diff] [blame^] | 609 | /* Regulators will have been enabled by bias management */ |
| 610 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
| 611 | |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 612 | return 0; |
Mark Brown | fe5422f | 2009-07-05 15:18:01 +0100 | [diff] [blame] | 613 | |
| 614 | err_codec: |
| 615 | snd_soc_unregister_codec(codec); |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 616 | err_regulator_enable: |
| 617 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
| 618 | err_regulator_get: |
| 619 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
Mark Brown | fe5422f | 2009-07-05 15:18:01 +0100 | [diff] [blame] | 620 | err: |
| 621 | kfree(wm8731); |
| 622 | return ret; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 623 | } |
| 624 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 625 | static void wm8731_unregister(struct wm8731_priv *wm8731) |
| 626 | { |
| 627 | wm8731_set_bias_level(&wm8731->codec, SND_SOC_BIAS_OFF); |
| 628 | snd_soc_unregister_dai(&wm8731_dai); |
| 629 | snd_soc_unregister_codec(&wm8731->codec); |
Mark Brown | 7dea7c0 | 2009-10-26 15:20:17 +0000 | [diff] [blame] | 630 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 631 | kfree(wm8731); |
| 632 | wm8731_codec = NULL; |
| 633 | } |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 634 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 635 | #if defined(CONFIG_SPI_MASTER) |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 636 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
| 637 | { |
| 638 | struct snd_soc_codec *codec; |
| 639 | struct wm8731_priv *wm8731; |
| 640 | |
| 641 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
| 642 | if (wm8731 == NULL) |
| 643 | return -ENOMEM; |
| 644 | |
| 645 | codec = &wm8731->codec; |
| 646 | codec->control_data = spi; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 647 | codec->dev = &spi->dev; |
| 648 | |
Greg Kroah-Hartman | ae31c1f | 2009-05-04 12:40:54 -0700 | [diff] [blame] | 649 | dev_set_drvdata(&spi->dev, wm8731); |
Mark Brown | 93b760b | 2009-02-18 12:44:40 +0000 | [diff] [blame] | 650 | |
Mark Brown | 7084a42 | 2009-07-10 22:24:27 +0100 | [diff] [blame] | 651 | return wm8731_register(wm8731, SND_SOC_SPI); |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 652 | } |
| 653 | |
| 654 | static int __devexit wm8731_spi_remove(struct spi_device *spi) |
| 655 | { |
Greg Kroah-Hartman | ae31c1f | 2009-05-04 12:40:54 -0700 | [diff] [blame] | 656 | struct wm8731_priv *wm8731 = dev_get_drvdata(&spi->dev); |
Mark Brown | 93b760b | 2009-02-18 12:44:40 +0000 | [diff] [blame] | 657 | |
| 658 | wm8731_unregister(wm8731); |
| 659 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 660 | return 0; |
| 661 | } |
| 662 | |
| 663 | static struct spi_driver wm8731_spi_driver = { |
| 664 | .driver = { |
| 665 | .name = "wm8731", |
| 666 | .bus = &spi_bus_type, |
| 667 | .owner = THIS_MODULE, |
| 668 | }, |
| 669 | .probe = wm8731_spi_probe, |
| 670 | .remove = __devexit_p(wm8731_spi_remove), |
| 671 | }; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 672 | #endif /* CONFIG_SPI_MASTER */ |
| 673 | |
| 674 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
Mark Brown | c6f2981 | 2009-02-18 21:25:40 +0000 | [diff] [blame] | 675 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
| 676 | const struct i2c_device_id *id) |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 677 | { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 678 | struct wm8731_priv *wm8731; |
| 679 | struct snd_soc_codec *codec; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 680 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 681 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
| 682 | if (wm8731 == NULL) |
| 683 | return -ENOMEM; |
| 684 | |
| 685 | codec = &wm8731->codec; |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 686 | |
| 687 | i2c_set_clientdata(i2c, wm8731); |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 688 | codec->control_data = i2c; |
| 689 | |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 690 | codec->dev = &i2c->dev; |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 691 | |
Mark Brown | 7084a42 | 2009-07-10 22:24:27 +0100 | [diff] [blame] | 692 | return wm8731_register(wm8731, SND_SOC_I2C); |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 693 | } |
| 694 | |
Mark Brown | c6f2981 | 2009-02-18 21:25:40 +0000 | [diff] [blame] | 695 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 696 | { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 697 | struct wm8731_priv *wm8731 = i2c_get_clientdata(client); |
| 698 | wm8731_unregister(wm8731); |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 699 | return 0; |
| 700 | } |
| 701 | |
| 702 | static const struct i2c_device_id wm8731_i2c_id[] = { |
| 703 | { "wm8731", 0 }, |
| 704 | { } |
| 705 | }; |
| 706 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); |
| 707 | |
| 708 | static struct i2c_driver wm8731_i2c_driver = { |
| 709 | .driver = { |
| 710 | .name = "WM8731 I2C Codec", |
| 711 | .owner = THIS_MODULE, |
| 712 | }, |
| 713 | .probe = wm8731_i2c_probe, |
Mark Brown | c6f2981 | 2009-02-18 21:25:40 +0000 | [diff] [blame] | 714 | .remove = __devexit_p(wm8731_i2c_remove), |
Mark Brown | a8035c8 | 2009-02-16 19:35:43 +0000 | [diff] [blame] | 715 | .id_table = wm8731_i2c_id, |
| 716 | }; |
| 717 | #endif |
| 718 | |
Takashi Iwai | c9b3a40 | 2008-12-10 07:47:22 +0100 | [diff] [blame] | 719 | static int __init wm8731_modinit(void) |
Mark Brown | 64089b8 | 2008-12-08 19:17:58 +0000 | [diff] [blame] | 720 | { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 721 | int ret; |
| 722 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 723 | ret = i2c_add_driver(&wm8731_i2c_driver); |
| 724 | if (ret != 0) { |
| 725 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", |
| 726 | ret); |
| 727 | } |
| 728 | #endif |
| 729 | #if defined(CONFIG_SPI_MASTER) |
| 730 | ret = spi_register_driver(&wm8731_spi_driver); |
| 731 | if (ret != 0) { |
| 732 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", |
| 733 | ret); |
| 734 | } |
| 735 | #endif |
| 736 | return 0; |
Mark Brown | 64089b8 | 2008-12-08 19:17:58 +0000 | [diff] [blame] | 737 | } |
| 738 | module_init(wm8731_modinit); |
| 739 | |
| 740 | static void __exit wm8731_exit(void) |
| 741 | { |
Mark Brown | 5998102 | 2009-02-16 20:49:16 +0000 | [diff] [blame] | 742 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| 743 | i2c_del_driver(&wm8731_i2c_driver); |
| 744 | #endif |
| 745 | #if defined(CONFIG_SPI_MASTER) |
| 746 | spi_unregister_driver(&wm8731_spi_driver); |
| 747 | #endif |
Mark Brown | 64089b8 | 2008-12-08 19:17:58 +0000 | [diff] [blame] | 748 | } |
| 749 | module_exit(wm8731_exit); |
| 750 | |
Richard Purdie | 40e0aa6 | 2006-10-06 18:36:07 +0200 | [diff] [blame] | 751 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
| 752 | MODULE_AUTHOR("Richard Purdie"); |
| 753 | MODULE_LICENSE("GPL"); |