Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 1 | /* |
| 2 | * wm2000.c -- WM2000 ALSA Soc Audio driver |
| 3 | * |
| 4 | * Copyright 2008-2010 Wolfson Microelectronics PLC. |
| 5 | * |
| 6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * The download image for the WM2000 will be requested as |
| 13 | * 'wm2000_anc.bin' by default (overridable via platform data) at |
| 14 | * runtime and is expected to be in flat binary format. This is |
| 15 | * generated by Wolfson configuration tools and includes |
| 16 | * system-specific callibration information. If supplied as a |
| 17 | * sequence of ASCII-encoded hexidecimal bytes this can be converted |
| 18 | * into a flat binary with a command such as this on the command line: |
| 19 | * |
| 20 | * perl -e 'while (<>) { s/[\r\n]+// ; printf("%c", hex($_)); }' |
| 21 | * < file > wm2000_anc.bin |
| 22 | */ |
| 23 | |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/moduleparam.h> |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/firmware.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/pm.h> |
| 31 | #include <linux/i2c.h> |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 32 | #include <linux/regmap.h> |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 33 | #include <linux/debugfs.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 34 | #include <linux/slab.h> |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 35 | #include <sound/core.h> |
| 36 | #include <sound/pcm.h> |
| 37 | #include <sound/pcm_params.h> |
| 38 | #include <sound/soc.h> |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 39 | #include <sound/initval.h> |
| 40 | #include <sound/tlv.h> |
| 41 | |
| 42 | #include <sound/wm2000.h> |
| 43 | |
| 44 | #include "wm2000.h" |
| 45 | |
| 46 | enum wm2000_anc_mode { |
| 47 | ANC_ACTIVE = 0, |
| 48 | ANC_BYPASS = 1, |
| 49 | ANC_STANDBY = 2, |
| 50 | ANC_OFF = 3, |
| 51 | }; |
| 52 | |
| 53 | struct wm2000_priv { |
| 54 | struct i2c_client *i2c; |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 55 | struct regmap *regmap; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 56 | |
| 57 | enum wm2000_anc_mode anc_mode; |
| 58 | |
| 59 | unsigned int anc_active:1; |
| 60 | unsigned int anc_eng_ena:1; |
| 61 | unsigned int spk_ena:1; |
| 62 | |
| 63 | unsigned int mclk_div:1; |
| 64 | unsigned int speech_clarity:1; |
| 65 | |
| 66 | int anc_download_size; |
| 67 | char *anc_download; |
| 68 | }; |
| 69 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 70 | static int wm2000_write(struct i2c_client *i2c, unsigned int reg, |
| 71 | unsigned int value) |
| 72 | { |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 73 | struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); |
| 74 | return regmap_write(wm2000->regmap, reg, value); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | static unsigned int wm2000_read(struct i2c_client *i2c, unsigned int r) |
| 78 | { |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 79 | struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); |
| 80 | unsigned int val; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 81 | int ret; |
| 82 | |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 83 | ret = regmap_read(wm2000->regmap, r, &val); |
| 84 | if (ret < 0) |
| 85 | return -1; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 86 | |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 87 | return val; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | static void wm2000_reset(struct wm2000_priv *wm2000) |
| 91 | { |
| 92 | struct i2c_client *i2c = wm2000->i2c; |
| 93 | |
| 94 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); |
| 95 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); |
| 96 | wm2000_write(i2c, WM2000_REG_ID1, 0); |
| 97 | |
| 98 | wm2000->anc_mode = ANC_OFF; |
| 99 | } |
| 100 | |
| 101 | static int wm2000_poll_bit(struct i2c_client *i2c, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 102 | unsigned int reg, u8 mask) |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 103 | { |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 104 | int timeout = 4000; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 105 | int val; |
| 106 | |
| 107 | val = wm2000_read(i2c, reg); |
| 108 | |
| 109 | while (!(val & mask) && --timeout) { |
| 110 | msleep(1); |
| 111 | val = wm2000_read(i2c, reg); |
| 112 | } |
| 113 | |
| 114 | if (timeout == 0) |
| 115 | return 0; |
| 116 | else |
| 117 | return 1; |
| 118 | } |
| 119 | |
| 120 | static int wm2000_power_up(struct i2c_client *i2c, int analogue) |
| 121 | { |
| 122 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 123 | int ret; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 124 | |
| 125 | BUG_ON(wm2000->anc_mode != ANC_OFF); |
| 126 | |
| 127 | dev_dbg(&i2c->dev, "Beginning power up\n"); |
| 128 | |
| 129 | if (!wm2000->mclk_div) { |
| 130 | dev_dbg(&i2c->dev, "Disabling MCLK divider\n"); |
| 131 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, |
| 132 | WM2000_MCLK_DIV2_ENA_CLR); |
| 133 | } else { |
| 134 | dev_dbg(&i2c->dev, "Enabling MCLK divider\n"); |
| 135 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, |
| 136 | WM2000_MCLK_DIV2_ENA_SET); |
| 137 | } |
| 138 | |
| 139 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); |
| 140 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_SET); |
| 141 | |
| 142 | /* Wait for ANC engine to become ready */ |
| 143 | if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 144 | WM2000_ANC_ENG_IDLE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 145 | dev_err(&i2c->dev, "ANC engine failed to reset\n"); |
| 146 | return -ETIMEDOUT; |
| 147 | } |
| 148 | |
| 149 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 150 | WM2000_STATUS_BOOT_COMPLETE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 151 | dev_err(&i2c->dev, "ANC engine failed to initialise\n"); |
| 152 | return -ETIMEDOUT; |
| 153 | } |
| 154 | |
| 155 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); |
| 156 | |
| 157 | /* Open code download of the data since it is the only bulk |
| 158 | * write we do. */ |
| 159 | dev_dbg(&i2c->dev, "Downloading %d bytes\n", |
| 160 | wm2000->anc_download_size - 2); |
| 161 | |
| 162 | ret = i2c_master_send(i2c, wm2000->anc_download, |
| 163 | wm2000->anc_download_size); |
| 164 | if (ret < 0) { |
| 165 | dev_err(&i2c->dev, "i2c_transfer() failed: %d\n", ret); |
| 166 | return ret; |
| 167 | } |
| 168 | if (ret != wm2000->anc_download_size) { |
| 169 | dev_err(&i2c->dev, "i2c_transfer() failed, %d != %d\n", |
| 170 | ret, wm2000->anc_download_size); |
| 171 | return -EIO; |
| 172 | } |
| 173 | |
| 174 | dev_dbg(&i2c->dev, "Download complete\n"); |
| 175 | |
| 176 | if (analogue) { |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 177 | wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 178 | |
| 179 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 180 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 181 | WM2000_MODE_MOUSE_ENABLE | |
| 182 | WM2000_MODE_THERMAL_ENABLE); |
| 183 | } else { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 184 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 185 | WM2000_MODE_MOUSE_ENABLE | |
| 186 | WM2000_MODE_THERMAL_ENABLE); |
| 187 | } |
| 188 | |
| 189 | ret = wm2000_read(i2c, WM2000_REG_SPEECH_CLARITY); |
| 190 | if (wm2000->speech_clarity) |
| 191 | ret &= ~WM2000_SPEECH_CLARITY; |
| 192 | else |
| 193 | ret |= WM2000_SPEECH_CLARITY; |
| 194 | wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, ret); |
| 195 | |
| 196 | wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33); |
| 197 | wm2000_write(i2c, WM2000_REG_SYS_START1, 0x02); |
| 198 | |
| 199 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); |
| 200 | |
| 201 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 202 | WM2000_STATUS_MOUSE_ACTIVE)) { |
| 203 | dev_err(&i2c->dev, "Timed out waiting for device\n"); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 204 | return -ETIMEDOUT; |
| 205 | } |
| 206 | |
| 207 | dev_dbg(&i2c->dev, "ANC active\n"); |
| 208 | if (analogue) |
| 209 | dev_dbg(&i2c->dev, "Analogue active\n"); |
| 210 | wm2000->anc_mode = ANC_ACTIVE; |
| 211 | |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | static int wm2000_power_down(struct i2c_client *i2c, int analogue) |
| 216 | { |
| 217 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 218 | |
| 219 | if (analogue) { |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 220 | wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 221 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 222 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 223 | WM2000_MODE_POWER_DOWN); |
| 224 | } else { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 225 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 226 | WM2000_MODE_POWER_DOWN); |
| 227 | } |
| 228 | |
| 229 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 230 | WM2000_STATUS_POWER_DOWN_COMPLETE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 231 | dev_err(&i2c->dev, "Timeout waiting for ANC power down\n"); |
| 232 | return -ETIMEDOUT; |
| 233 | } |
| 234 | |
| 235 | if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 236 | WM2000_ANC_ENG_IDLE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 237 | dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); |
| 238 | return -ETIMEDOUT; |
| 239 | } |
| 240 | |
| 241 | dev_dbg(&i2c->dev, "powered off\n"); |
| 242 | wm2000->anc_mode = ANC_OFF; |
| 243 | |
| 244 | return 0; |
| 245 | } |
| 246 | |
| 247 | static int wm2000_enter_bypass(struct i2c_client *i2c, int analogue) |
| 248 | { |
| 249 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
| 250 | |
| 251 | BUG_ON(wm2000->anc_mode != ANC_ACTIVE); |
| 252 | |
| 253 | if (analogue) { |
| 254 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 255 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 256 | WM2000_MODE_THERMAL_ENABLE | |
| 257 | WM2000_MODE_BYPASS_ENTRY); |
| 258 | } else { |
| 259 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 260 | WM2000_MODE_THERMAL_ENABLE | |
| 261 | WM2000_MODE_BYPASS_ENTRY); |
| 262 | } |
| 263 | |
| 264 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 265 | WM2000_STATUS_ANC_DISABLED)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 266 | dev_err(&i2c->dev, "Timeout waiting for ANC disable\n"); |
| 267 | return -ETIMEDOUT; |
| 268 | } |
| 269 | |
| 270 | if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 271 | WM2000_ANC_ENG_IDLE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 272 | dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); |
| 273 | return -ETIMEDOUT; |
| 274 | } |
| 275 | |
| 276 | wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); |
| 277 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); |
| 278 | |
| 279 | wm2000->anc_mode = ANC_BYPASS; |
| 280 | dev_dbg(&i2c->dev, "bypass enabled\n"); |
| 281 | |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | static int wm2000_exit_bypass(struct i2c_client *i2c, int analogue) |
| 286 | { |
| 287 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
| 288 | |
| 289 | BUG_ON(wm2000->anc_mode != ANC_BYPASS); |
| 290 | |
| 291 | wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); |
| 292 | |
| 293 | if (analogue) { |
| 294 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 295 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 296 | WM2000_MODE_MOUSE_ENABLE | |
| 297 | WM2000_MODE_THERMAL_ENABLE); |
| 298 | } else { |
| 299 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 300 | WM2000_MODE_MOUSE_ENABLE | |
| 301 | WM2000_MODE_THERMAL_ENABLE); |
| 302 | } |
| 303 | |
| 304 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); |
| 305 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); |
| 306 | |
| 307 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 308 | WM2000_STATUS_MOUSE_ACTIVE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 309 | dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); |
| 310 | return -ETIMEDOUT; |
| 311 | } |
| 312 | |
| 313 | wm2000->anc_mode = ANC_ACTIVE; |
| 314 | dev_dbg(&i2c->dev, "MOUSE active\n"); |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static int wm2000_enter_standby(struct i2c_client *i2c, int analogue) |
| 320 | { |
| 321 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 322 | |
| 323 | BUG_ON(wm2000->anc_mode != ANC_ACTIVE); |
| 324 | |
| 325 | if (analogue) { |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 326 | wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 327 | |
| 328 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 329 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 330 | WM2000_MODE_THERMAL_ENABLE | |
| 331 | WM2000_MODE_STANDBY_ENTRY); |
| 332 | } else { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 333 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 334 | WM2000_MODE_THERMAL_ENABLE | |
| 335 | WM2000_MODE_STANDBY_ENTRY); |
| 336 | } |
| 337 | |
| 338 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 339 | WM2000_STATUS_ANC_DISABLED)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 340 | dev_err(&i2c->dev, |
| 341 | "Timed out waiting for ANC disable after 1ms\n"); |
| 342 | return -ETIMEDOUT; |
| 343 | } |
| 344 | |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 345 | if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, WM2000_ANC_ENG_IDLE)) { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 346 | dev_err(&i2c->dev, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 347 | "Timed out waiting for standby\n"); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 348 | return -ETIMEDOUT; |
| 349 | } |
| 350 | |
| 351 | wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); |
| 352 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); |
| 353 | |
| 354 | wm2000->anc_mode = ANC_STANDBY; |
| 355 | dev_dbg(&i2c->dev, "standby\n"); |
| 356 | if (analogue) |
| 357 | dev_dbg(&i2c->dev, "Analogue disabled\n"); |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | static int wm2000_exit_standby(struct i2c_client *i2c, int analogue) |
| 363 | { |
| 364 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 365 | |
| 366 | BUG_ON(wm2000->anc_mode != ANC_STANDBY); |
| 367 | |
| 368 | wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); |
| 369 | |
| 370 | if (analogue) { |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 371 | wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 372 | |
| 373 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 374 | WM2000_MODE_ANA_SEQ_INCLUDE | |
| 375 | WM2000_MODE_THERMAL_ENABLE | |
| 376 | WM2000_MODE_MOUSE_ENABLE); |
| 377 | } else { |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 378 | wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, |
| 379 | WM2000_MODE_THERMAL_ENABLE | |
| 380 | WM2000_MODE_MOUSE_ENABLE); |
| 381 | } |
| 382 | |
| 383 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); |
| 384 | wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); |
| 385 | |
| 386 | if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, |
Mark Brown | 3ff1ec2 | 2012-06-08 06:53:48 +0800 | [diff] [blame] | 387 | WM2000_STATUS_MOUSE_ACTIVE)) { |
| 388 | dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 389 | return -ETIMEDOUT; |
| 390 | } |
| 391 | |
| 392 | wm2000->anc_mode = ANC_ACTIVE; |
| 393 | dev_dbg(&i2c->dev, "MOUSE active\n"); |
| 394 | if (analogue) |
| 395 | dev_dbg(&i2c->dev, "Analogue enabled\n"); |
| 396 | |
| 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | typedef int (*wm2000_mode_fn)(struct i2c_client *i2c, int analogue); |
| 401 | |
| 402 | static struct { |
| 403 | enum wm2000_anc_mode source; |
| 404 | enum wm2000_anc_mode dest; |
| 405 | int analogue; |
| 406 | wm2000_mode_fn step[2]; |
| 407 | } anc_transitions[] = { |
| 408 | { |
| 409 | .source = ANC_OFF, |
| 410 | .dest = ANC_ACTIVE, |
| 411 | .analogue = 1, |
| 412 | .step = { |
| 413 | wm2000_power_up, |
| 414 | }, |
| 415 | }, |
| 416 | { |
| 417 | .source = ANC_OFF, |
| 418 | .dest = ANC_STANDBY, |
| 419 | .step = { |
| 420 | wm2000_power_up, |
| 421 | wm2000_enter_standby, |
| 422 | }, |
| 423 | }, |
| 424 | { |
| 425 | .source = ANC_OFF, |
| 426 | .dest = ANC_BYPASS, |
| 427 | .analogue = 1, |
| 428 | .step = { |
| 429 | wm2000_power_up, |
| 430 | wm2000_enter_bypass, |
| 431 | }, |
| 432 | }, |
| 433 | { |
| 434 | .source = ANC_ACTIVE, |
| 435 | .dest = ANC_BYPASS, |
| 436 | .analogue = 1, |
| 437 | .step = { |
| 438 | wm2000_enter_bypass, |
| 439 | }, |
| 440 | }, |
| 441 | { |
| 442 | .source = ANC_ACTIVE, |
| 443 | .dest = ANC_STANDBY, |
| 444 | .analogue = 1, |
| 445 | .step = { |
| 446 | wm2000_enter_standby, |
| 447 | }, |
| 448 | }, |
| 449 | { |
| 450 | .source = ANC_ACTIVE, |
| 451 | .dest = ANC_OFF, |
| 452 | .analogue = 1, |
| 453 | .step = { |
| 454 | wm2000_power_down, |
| 455 | }, |
| 456 | }, |
| 457 | { |
| 458 | .source = ANC_BYPASS, |
| 459 | .dest = ANC_ACTIVE, |
| 460 | .analogue = 1, |
| 461 | .step = { |
| 462 | wm2000_exit_bypass, |
| 463 | }, |
| 464 | }, |
| 465 | { |
| 466 | .source = ANC_BYPASS, |
| 467 | .dest = ANC_STANDBY, |
| 468 | .analogue = 1, |
| 469 | .step = { |
| 470 | wm2000_exit_bypass, |
| 471 | wm2000_enter_standby, |
| 472 | }, |
| 473 | }, |
| 474 | { |
| 475 | .source = ANC_BYPASS, |
| 476 | .dest = ANC_OFF, |
| 477 | .step = { |
| 478 | wm2000_exit_bypass, |
| 479 | wm2000_power_down, |
| 480 | }, |
| 481 | }, |
| 482 | { |
| 483 | .source = ANC_STANDBY, |
| 484 | .dest = ANC_ACTIVE, |
| 485 | .analogue = 1, |
| 486 | .step = { |
| 487 | wm2000_exit_standby, |
| 488 | }, |
| 489 | }, |
| 490 | { |
| 491 | .source = ANC_STANDBY, |
| 492 | .dest = ANC_BYPASS, |
| 493 | .analogue = 1, |
| 494 | .step = { |
| 495 | wm2000_exit_standby, |
| 496 | wm2000_enter_bypass, |
| 497 | }, |
| 498 | }, |
| 499 | { |
| 500 | .source = ANC_STANDBY, |
| 501 | .dest = ANC_OFF, |
| 502 | .step = { |
| 503 | wm2000_exit_standby, |
| 504 | wm2000_power_down, |
| 505 | }, |
| 506 | }, |
| 507 | }; |
| 508 | |
| 509 | static int wm2000_anc_transition(struct wm2000_priv *wm2000, |
| 510 | enum wm2000_anc_mode mode) |
| 511 | { |
| 512 | struct i2c_client *i2c = wm2000->i2c; |
| 513 | int i, j; |
| 514 | int ret; |
| 515 | |
| 516 | if (wm2000->anc_mode == mode) |
| 517 | return 0; |
| 518 | |
| 519 | for (i = 0; i < ARRAY_SIZE(anc_transitions); i++) |
| 520 | if (anc_transitions[i].source == wm2000->anc_mode && |
| 521 | anc_transitions[i].dest == mode) |
| 522 | break; |
| 523 | if (i == ARRAY_SIZE(anc_transitions)) { |
| 524 | dev_err(&i2c->dev, "No transition for %d->%d\n", |
| 525 | wm2000->anc_mode, mode); |
| 526 | return -EINVAL; |
| 527 | } |
| 528 | |
| 529 | for (j = 0; j < ARRAY_SIZE(anc_transitions[j].step); j++) { |
| 530 | if (!anc_transitions[i].step[j]) |
| 531 | break; |
| 532 | ret = anc_transitions[i].step[j](i2c, |
| 533 | anc_transitions[i].analogue); |
| 534 | if (ret != 0) |
| 535 | return ret; |
| 536 | } |
| 537 | |
| 538 | return 0; |
| 539 | } |
| 540 | |
| 541 | static int wm2000_anc_set_mode(struct wm2000_priv *wm2000) |
| 542 | { |
| 543 | struct i2c_client *i2c = wm2000->i2c; |
| 544 | enum wm2000_anc_mode mode; |
| 545 | |
| 546 | if (wm2000->anc_eng_ena && wm2000->spk_ena) |
| 547 | if (wm2000->anc_active) |
| 548 | mode = ANC_ACTIVE; |
| 549 | else |
| 550 | mode = ANC_BYPASS; |
| 551 | else |
| 552 | mode = ANC_STANDBY; |
| 553 | |
| 554 | dev_dbg(&i2c->dev, "Set mode %d (enabled %d, mute %d, active %d)\n", |
| 555 | mode, wm2000->anc_eng_ena, !wm2000->spk_ena, |
| 556 | wm2000->anc_active); |
| 557 | |
| 558 | return wm2000_anc_transition(wm2000, mode); |
| 559 | } |
| 560 | |
| 561 | static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol, |
| 562 | struct snd_ctl_elem_value *ucontrol) |
| 563 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 564 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 565 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 566 | |
| 567 | ucontrol->value.enumerated.item[0] = wm2000->anc_active; |
| 568 | |
| 569 | return 0; |
| 570 | } |
| 571 | |
| 572 | static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol, |
| 573 | struct snd_ctl_elem_value *ucontrol) |
| 574 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 575 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 576 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 577 | int anc_active = ucontrol->value.enumerated.item[0]; |
| 578 | |
| 579 | if (anc_active > 1) |
| 580 | return -EINVAL; |
| 581 | |
| 582 | wm2000->anc_active = anc_active; |
| 583 | |
| 584 | return wm2000_anc_set_mode(wm2000); |
| 585 | } |
| 586 | |
| 587 | static int wm2000_speaker_get(struct snd_kcontrol *kcontrol, |
| 588 | struct snd_ctl_elem_value *ucontrol) |
| 589 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 590 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 591 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 592 | |
| 593 | ucontrol->value.enumerated.item[0] = wm2000->spk_ena; |
| 594 | |
| 595 | return 0; |
| 596 | } |
| 597 | |
| 598 | static int wm2000_speaker_put(struct snd_kcontrol *kcontrol, |
| 599 | struct snd_ctl_elem_value *ucontrol) |
| 600 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 601 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 602 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 603 | int val = ucontrol->value.enumerated.item[0]; |
| 604 | |
| 605 | if (val > 1) |
| 606 | return -EINVAL; |
| 607 | |
| 608 | wm2000->spk_ena = val; |
| 609 | |
| 610 | return wm2000_anc_set_mode(wm2000); |
| 611 | } |
| 612 | |
| 613 | static const struct snd_kcontrol_new wm2000_controls[] = { |
| 614 | SOC_SINGLE_BOOL_EXT("WM2000 ANC Switch", 0, |
| 615 | wm2000_anc_mode_get, |
| 616 | wm2000_anc_mode_put), |
| 617 | SOC_SINGLE_BOOL_EXT("WM2000 Switch", 0, |
| 618 | wm2000_speaker_get, |
| 619 | wm2000_speaker_put), |
| 620 | }; |
| 621 | |
| 622 | static int wm2000_anc_power_event(struct snd_soc_dapm_widget *w, |
| 623 | struct snd_kcontrol *kcontrol, int event) |
| 624 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 625 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 626 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 627 | |
| 628 | if (SND_SOC_DAPM_EVENT_ON(event)) |
| 629 | wm2000->anc_eng_ena = 1; |
| 630 | |
| 631 | if (SND_SOC_DAPM_EVENT_OFF(event)) |
| 632 | wm2000->anc_eng_ena = 0; |
| 633 | |
| 634 | return wm2000_anc_set_mode(wm2000); |
| 635 | } |
| 636 | |
| 637 | static const struct snd_soc_dapm_widget wm2000_dapm_widgets[] = { |
| 638 | /* Externally visible pins */ |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 639 | SND_SOC_DAPM_OUTPUT("SPKN"), |
| 640 | SND_SOC_DAPM_OUTPUT("SPKP"), |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 641 | |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 642 | SND_SOC_DAPM_INPUT("LINN"), |
| 643 | SND_SOC_DAPM_INPUT("LINP"), |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 644 | |
| 645 | SND_SOC_DAPM_PGA_E("ANC Engine", SND_SOC_NOPM, 0, 0, NULL, 0, |
| 646 | wm2000_anc_power_event, |
| 647 | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), |
| 648 | }; |
| 649 | |
| 650 | /* Target, Path, Source */ |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 651 | static const struct snd_soc_dapm_route wm2000_audio_map[] = { |
| 652 | { "SPKN", NULL, "ANC Engine" }, |
| 653 | { "SPKP", NULL, "ANC Engine" }, |
| 654 | { "ANC Engine", NULL, "LINN" }, |
| 655 | { "ANC Engine", NULL, "LINP" }, |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 656 | }; |
| 657 | |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 658 | #ifdef CONFIG_PM |
| 659 | static int wm2000_suspend(struct snd_soc_codec *codec) |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 660 | { |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 661 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 662 | |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 663 | return wm2000_anc_transition(wm2000, ANC_OFF); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 664 | } |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 665 | |
| 666 | static int wm2000_resume(struct snd_soc_codec *codec) |
| 667 | { |
| 668 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
| 669 | |
| 670 | return wm2000_anc_set_mode(wm2000); |
| 671 | } |
| 672 | #else |
| 673 | #define wm2000_suspend NULL |
| 674 | #define wm2000_resume NULL |
| 675 | #endif |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 676 | |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 677 | static const struct regmap_config wm2000_regmap = { |
| 678 | .reg_bits = 8, |
| 679 | .val_bits = 8, |
| 680 | }; |
| 681 | |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 682 | static int wm2000_probe(struct snd_soc_codec *codec) |
| 683 | { |
| 684 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
| 685 | |
| 686 | /* This will trigger a transition to standby mode by default */ |
| 687 | wm2000_anc_set_mode(wm2000); |
| 688 | |
| 689 | return 0; |
| 690 | } |
| 691 | |
| 692 | static int wm2000_remove(struct snd_soc_codec *codec) |
| 693 | { |
| 694 | struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); |
| 695 | |
| 696 | return wm2000_anc_transition(wm2000, ANC_OFF); |
| 697 | } |
| 698 | |
| 699 | static struct snd_soc_codec_driver soc_codec_dev_wm2000 = { |
| 700 | .probe = wm2000_probe, |
| 701 | .remove = wm2000_remove, |
| 702 | .suspend = wm2000_suspend, |
| 703 | .resume = wm2000_resume, |
| 704 | |
| 705 | .dapm_widgets = wm2000_dapm_widgets, |
| 706 | .num_dapm_widgets = ARRAY_SIZE(wm2000_dapm_widgets), |
| 707 | .dapm_routes = wm2000_audio_map, |
| 708 | .num_dapm_routes = ARRAY_SIZE(wm2000_audio_map), |
| 709 | .controls = wm2000_controls, |
| 710 | .num_controls = ARRAY_SIZE(wm2000_controls), |
| 711 | }; |
| 712 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 713 | static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, |
| 714 | const struct i2c_device_id *i2c_id) |
| 715 | { |
| 716 | struct wm2000_priv *wm2000; |
| 717 | struct wm2000_platform_data *pdata; |
| 718 | const char *filename; |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 719 | const struct firmware *fw = NULL; |
| 720 | int ret; |
| 721 | int reg; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 722 | u16 id; |
| 723 | |
Mark Brown | b03e96e | 2011-12-02 21:28:31 +0000 | [diff] [blame] | 724 | wm2000 = devm_kzalloc(&i2c->dev, sizeof(struct wm2000_priv), |
| 725 | GFP_KERNEL); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 726 | if (wm2000 == NULL) { |
| 727 | dev_err(&i2c->dev, "Unable to allocate private data\n"); |
| 728 | return -ENOMEM; |
| 729 | } |
| 730 | |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 731 | dev_set_drvdata(&i2c->dev, wm2000); |
| 732 | |
| 733 | wm2000->regmap = regmap_init_i2c(i2c, &wm2000_regmap); |
| 734 | if (IS_ERR(wm2000->regmap)) { |
| 735 | ret = PTR_ERR(wm2000->regmap); |
| 736 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", |
| 737 | ret); |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 738 | goto out; |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 739 | } |
| 740 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 741 | /* Verify that this is a WM2000 */ |
| 742 | reg = wm2000_read(i2c, WM2000_REG_ID1); |
| 743 | id = reg << 8; |
| 744 | reg = wm2000_read(i2c, WM2000_REG_ID2); |
| 745 | id |= reg & 0xff; |
| 746 | |
| 747 | if (id != 0x2000) { |
| 748 | dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id); |
| 749 | ret = -ENODEV; |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 750 | goto out_regmap_exit; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | reg = wm2000_read(i2c, WM2000_REG_REVISON); |
| 754 | dev_info(&i2c->dev, "revision %c\n", reg + 'A'); |
| 755 | |
| 756 | filename = "wm2000_anc.bin"; |
| 757 | pdata = dev_get_platdata(&i2c->dev); |
| 758 | if (pdata) { |
| 759 | wm2000->mclk_div = pdata->mclkdiv2; |
| 760 | wm2000->speech_clarity = !pdata->speech_enh_disable; |
| 761 | |
| 762 | if (pdata->download_file) |
| 763 | filename = pdata->download_file; |
| 764 | } |
| 765 | |
| 766 | ret = request_firmware(&fw, filename, &i2c->dev); |
| 767 | if (ret != 0) { |
| 768 | dev_err(&i2c->dev, "Failed to acquire ANC data: %d\n", ret); |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 769 | goto out_regmap_exit; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | /* Pre-cook the concatenation of the register address onto the image */ |
| 773 | wm2000->anc_download_size = fw->size + 2; |
Mark Brown | b03e96e | 2011-12-02 21:28:31 +0000 | [diff] [blame] | 774 | wm2000->anc_download = devm_kzalloc(&i2c->dev, |
| 775 | wm2000->anc_download_size, |
| 776 | GFP_KERNEL); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 777 | if (wm2000->anc_download == NULL) { |
| 778 | dev_err(&i2c->dev, "Out of memory\n"); |
| 779 | ret = -ENOMEM; |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 780 | goto out_regmap_exit; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | wm2000->anc_download[0] = 0x80; |
| 784 | wm2000->anc_download[1] = 0x00; |
| 785 | memcpy(wm2000->anc_download + 2, fw->data, fw->size); |
| 786 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 787 | wm2000->anc_eng_ena = 1; |
Mark Brown | e71fa37 | 2010-06-15 15:14:00 +0100 | [diff] [blame] | 788 | wm2000->anc_active = 1; |
| 789 | wm2000->spk_ena = 1; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 790 | wm2000->i2c = i2c; |
| 791 | |
| 792 | wm2000_reset(wm2000); |
| 793 | |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 794 | ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000, NULL, 0); |
| 795 | if (!ret) |
| 796 | goto out; |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 797 | |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 798 | out_regmap_exit: |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 799 | regmap_exit(wm2000->regmap); |
Jesper Juhl | c83f1d7 | 2012-01-23 22:28:44 +0100 | [diff] [blame] | 800 | out: |
| 801 | release_firmware(fw); |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 802 | return ret; |
| 803 | } |
| 804 | |
| 805 | static __devexit int wm2000_i2c_remove(struct i2c_client *i2c) |
| 806 | { |
| 807 | struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); |
| 808 | |
Mark Brown | 4911ccd | 2011-12-02 21:59:18 +0000 | [diff] [blame] | 809 | snd_soc_unregister_codec(&i2c->dev); |
Mark Brown | 8aa1fe8 | 2011-12-02 21:57:19 +0000 | [diff] [blame] | 810 | regmap_exit(wm2000->regmap); |
| 811 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 812 | return 0; |
| 813 | } |
| 814 | |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 815 | static const struct i2c_device_id wm2000_i2c_id[] = { |
| 816 | { "wm2000", 0 }, |
| 817 | { } |
| 818 | }; |
| 819 | MODULE_DEVICE_TABLE(i2c, wm2000_i2c_id); |
| 820 | |
| 821 | static struct i2c_driver wm2000_i2c_driver = { |
| 822 | .driver = { |
| 823 | .name = "wm2000", |
| 824 | .owner = THIS_MODULE, |
| 825 | }, |
| 826 | .probe = wm2000_i2c_probe, |
| 827 | .remove = __devexit_p(wm2000_i2c_remove), |
Mark Brown | 3a66d38 | 2010-02-11 13:27:19 +0000 | [diff] [blame] | 828 | .id_table = wm2000_i2c_id, |
| 829 | }; |
| 830 | |
| 831 | static int __init wm2000_init(void) |
| 832 | { |
| 833 | return i2c_add_driver(&wm2000_i2c_driver); |
| 834 | } |
| 835 | module_init(wm2000_init); |
| 836 | |
| 837 | static void __exit wm2000_exit(void) |
| 838 | { |
| 839 | i2c_del_driver(&wm2000_i2c_driver); |
| 840 | } |
| 841 | module_exit(wm2000_exit); |
| 842 | |
| 843 | MODULE_DESCRIPTION("ASoC WM2000 driver"); |
| 844 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>"); |
| 845 | MODULE_LICENSE("GPL"); |