Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 1 | /* |
| 2 | * wm8994-core.c -- Device access for Wolfson WM8994 |
| 3 | * |
| 4 | * Copyright 2009 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 it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 18 | #include <linux/i2c.h> |
Mark Brown | d6c645fc | 2011-06-17 13:02:27 +0100 | [diff] [blame] | 19 | #include <linux/err.h> |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 20 | #include <linux/delay.h> |
| 21 | #include <linux/mfd/core.h> |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 22 | #include <linux/of.h> |
| 23 | #include <linux/of_device.h> |
| 24 | #include <linux/of_gpio.h> |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 25 | #include <linux/pm_runtime.h> |
Mark Brown | d6c645fc | 2011-06-17 13:02:27 +0100 | [diff] [blame] | 26 | #include <linux/regmap.h> |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 27 | #include <linux/regulator/consumer.h> |
| 28 | #include <linux/regulator/machine.h> |
| 29 | |
| 30 | #include <linux/mfd/wm8994/core.h> |
| 31 | #include <linux/mfd/wm8994/pdata.h> |
| 32 | #include <linux/mfd/wm8994/registers.h> |
| 33 | |
Mark Brown | c3f1386 | 2011-10-25 14:23:53 +0200 | [diff] [blame] | 34 | #include "wm8994.h" |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 35 | |
Geert Uytterhoeven | ad59de4 | 2013-11-18 14:33:04 +0100 | [diff] [blame] | 36 | static const struct mfd_cell wm8994_regulator_devs[] = { |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 37 | { |
| 38 | .name = "wm8994-ldo", |
| 39 | .id = 1, |
| 40 | .pm_runtime_no_callbacks = true, |
| 41 | }, |
| 42 | { |
| 43 | .name = "wm8994-ldo", |
| 44 | .id = 2, |
| 45 | .pm_runtime_no_callbacks = true, |
| 46 | }, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 47 | }; |
| 48 | |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 49 | static struct resource wm8994_codec_resources[] = { |
| 50 | { |
| 51 | .start = WM8994_IRQ_TEMP_SHUT, |
| 52 | .end = WM8994_IRQ_TEMP_WARN, |
| 53 | .flags = IORESOURCE_IRQ, |
| 54 | }, |
| 55 | }; |
| 56 | |
| 57 | static struct resource wm8994_gpio_resources[] = { |
| 58 | { |
| 59 | .start = WM8994_IRQ_GPIO(1), |
| 60 | .end = WM8994_IRQ_GPIO(11), |
| 61 | .flags = IORESOURCE_IRQ, |
| 62 | }, |
| 63 | }; |
| 64 | |
Geert Uytterhoeven | ad59de4 | 2013-11-18 14:33:04 +0100 | [diff] [blame] | 65 | static const struct mfd_cell wm8994_devs[] = { |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 66 | { |
| 67 | .name = "wm8994-codec", |
| 68 | .num_resources = ARRAY_SIZE(wm8994_codec_resources), |
| 69 | .resources = wm8994_codec_resources, |
| 70 | }, |
| 71 | |
| 72 | { |
| 73 | .name = "wm8994-gpio", |
| 74 | .num_resources = ARRAY_SIZE(wm8994_gpio_resources), |
| 75 | .resources = wm8994_gpio_resources, |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 76 | .pm_runtime_no_callbacks = true, |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 77 | }, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 78 | }; |
| 79 | |
| 80 | /* |
| 81 | * Supplies for the main bulk of CODEC; the LDO supplies are ignored |
| 82 | * and should be handled via the standard regulator API supply |
| 83 | * management. |
| 84 | */ |
Mark Brown | b1f43bf | 2011-05-24 17:35:40 +0800 | [diff] [blame] | 85 | static const char *wm1811_main_supplies[] = { |
| 86 | "DBVDD1", |
| 87 | "DBVDD2", |
| 88 | "DBVDD3", |
| 89 | "DCVDD", |
| 90 | "AVDD1", |
| 91 | "AVDD2", |
| 92 | "CPVDD", |
| 93 | "SPKVDD1", |
| 94 | "SPKVDD2", |
| 95 | }; |
| 96 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 97 | static const char *wm8994_main_supplies[] = { |
| 98 | "DBVDD", |
| 99 | "DCVDD", |
| 100 | "AVDD1", |
| 101 | "AVDD2", |
| 102 | "CPVDD", |
| 103 | "SPKVDD1", |
| 104 | "SPKVDD2", |
| 105 | }; |
| 106 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 107 | static const char *wm8958_main_supplies[] = { |
| 108 | "DBVDD1", |
| 109 | "DBVDD2", |
| 110 | "DBVDD3", |
| 111 | "DCVDD", |
| 112 | "AVDD1", |
| 113 | "AVDD2", |
| 114 | "CPVDD", |
| 115 | "SPKVDD1", |
| 116 | "SPKVDD2", |
| 117 | }; |
| 118 | |
Mark Brown | 6394678 | 2013-03-22 12:40:22 +0100 | [diff] [blame] | 119 | #ifdef CONFIG_PM_RUNTIME |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 120 | static int wm8994_suspend(struct device *dev) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 121 | { |
| 122 | struct wm8994 *wm8994 = dev_get_drvdata(dev); |
| 123 | int ret; |
| 124 | |
Mark Brown | 77bd70e | 2011-02-04 14:57:43 +0000 | [diff] [blame] | 125 | /* Don't actually go through with the suspend if the CODEC is |
Mark Brown | ebe38f80 | 2013-07-17 13:16:09 +0100 | [diff] [blame] | 126 | * still active for accessory detect. */ |
Mark Brown | 5f40c6b | 2011-08-13 14:37:48 +0900 | [diff] [blame] | 127 | switch (wm8994->type) { |
| 128 | case WM8958: |
Mark Brown | b5488b6 | 2011-11-04 23:14:46 +0000 | [diff] [blame] | 129 | case WM1811: |
Mark Brown | 5f40c6b | 2011-08-13 14:37:48 +0900 | [diff] [blame] | 130 | ret = wm8994_reg_read(wm8994, WM8958_MIC_DETECT_1); |
| 131 | if (ret < 0) { |
| 132 | dev_err(dev, "Failed to read power status: %d\n", ret); |
| 133 | } else if (ret & WM8958_MICD_ENA) { |
| 134 | dev_dbg(dev, "CODEC still active, ignoring suspend\n"); |
| 135 | return 0; |
| 136 | } |
| 137 | break; |
| 138 | default: |
| 139 | break; |
| 140 | } |
| 141 | |
Mark Brown | 881de67 | 2011-08-22 15:43:55 +0200 | [diff] [blame] | 142 | /* Disable LDO pulldowns while the device is suspended if we |
| 143 | * don't know that something will be driving them. */ |
| 144 | if (!wm8994->ldo_ena_always_driven) |
| 145 | wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, |
| 146 | WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD, |
| 147 | WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD); |
| 148 | |
Mark Brown | f40dff9 | 2011-02-21 18:30:31 +0000 | [diff] [blame] | 149 | /* Explicitly put the device into reset in case regulators |
| 150 | * don't get disabled in order to ensure consistent restart. |
| 151 | */ |
Mark Brown | be79cf2 | 2011-10-25 13:25:43 +0200 | [diff] [blame] | 152 | wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET, |
| 153 | wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET)); |
Mark Brown | f40dff9 | 2011-02-21 18:30:31 +0000 | [diff] [blame] | 154 | |
Mark Brown | ed393dc | 2012-06-29 14:55:39 +0100 | [diff] [blame] | 155 | regcache_mark_dirty(wm8994->regmap); |
| 156 | |
Chris Rattray | 78a27cd | 2012-06-12 00:43:35 +0800 | [diff] [blame] | 157 | /* Restore GPIO registers to prevent problems with mismatched |
| 158 | * pin configurations. |
| 159 | */ |
Mark Brown | ed393dc | 2012-06-29 14:55:39 +0100 | [diff] [blame] | 160 | ret = regcache_sync_region(wm8994->regmap, WM8994_GPIO_1, |
| 161 | WM8994_GPIO_11); |
Chris Rattray | 78a27cd | 2012-06-12 00:43:35 +0800 | [diff] [blame] | 162 | if (ret != 0) |
| 163 | dev_err(dev, "Failed to restore GPIO registers: %d\n", ret); |
| 164 | |
Mark Brown | 1a2017b | 2012-06-29 14:55:40 +0100 | [diff] [blame] | 165 | /* In case one of the GPIOs is used as a wake input. */ |
| 166 | ret = regcache_sync_region(wm8994->regmap, |
| 167 | WM8994_INTERRUPT_STATUS_1_MASK, |
| 168 | WM8994_INTERRUPT_STATUS_1_MASK); |
| 169 | if (ret != 0) |
| 170 | dev_err(dev, "Failed to restore interrupt mask: %d\n", ret); |
| 171 | |
Mark Brown | 3befc92 | 2012-01-09 00:36:42 -0800 | [diff] [blame] | 172 | regcache_cache_only(wm8994->regmap, true); |
Mark Brown | 77bd70e | 2011-02-04 14:57:43 +0000 | [diff] [blame] | 173 | wm8994->suspended = true; |
| 174 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 175 | ret = regulator_bulk_disable(wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 176 | wm8994->supplies); |
| 177 | if (ret != 0) { |
| 178 | dev_err(dev, "Failed to disable supplies: %d\n", ret); |
| 179 | return ret; |
| 180 | } |
| 181 | |
| 182 | return 0; |
| 183 | } |
| 184 | |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 185 | static int wm8994_resume(struct device *dev) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 186 | { |
| 187 | struct wm8994 *wm8994 = dev_get_drvdata(dev); |
Mark Brown | c3f1386 | 2011-10-25 14:23:53 +0200 | [diff] [blame] | 188 | int ret; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 189 | |
Mark Brown | 77bd70e | 2011-02-04 14:57:43 +0000 | [diff] [blame] | 190 | /* We may have lied to the PM core about suspending */ |
| 191 | if (!wm8994->suspended) |
| 192 | return 0; |
| 193 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 194 | ret = regulator_bulk_enable(wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 195 | wm8994->supplies); |
| 196 | if (ret != 0) { |
| 197 | dev_err(dev, "Failed to enable supplies: %d\n", ret); |
| 198 | return ret; |
| 199 | } |
| 200 | |
Mark Brown | 3befc92 | 2012-01-09 00:36:42 -0800 | [diff] [blame] | 201 | regcache_cache_only(wm8994->regmap, false); |
Mark Brown | c3f1386 | 2011-10-25 14:23:53 +0200 | [diff] [blame] | 202 | ret = regcache_sync(wm8994->regmap); |
| 203 | if (ret != 0) { |
| 204 | dev_err(dev, "Failed to restore register map: %d\n", ret); |
| 205 | goto err_enable; |
Mark Brown | 98ae1cc | 2011-06-07 11:49:42 +0100 | [diff] [blame] | 206 | } |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 207 | |
Mark Brown | 881de67 | 2011-08-22 15:43:55 +0200 | [diff] [blame] | 208 | /* Disable LDO pulldowns while the device is active */ |
| 209 | wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, |
| 210 | WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD, |
| 211 | 0); |
| 212 | |
Mark Brown | 77bd70e | 2011-02-04 14:57:43 +0000 | [diff] [blame] | 213 | wm8994->suspended = false; |
| 214 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 215 | return 0; |
Mark Brown | c3f1386 | 2011-10-25 14:23:53 +0200 | [diff] [blame] | 216 | |
| 217 | err_enable: |
| 218 | regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); |
| 219 | |
| 220 | return ret; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 221 | } |
| 222 | #endif |
| 223 | |
| 224 | #ifdef CONFIG_REGULATOR |
| 225 | static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo) |
| 226 | { |
| 227 | struct wm8994_ldo_pdata *ldo_pdata; |
| 228 | |
| 229 | if (!pdata) |
| 230 | return 0; |
| 231 | |
| 232 | ldo_pdata = &pdata->ldo[ldo]; |
| 233 | |
| 234 | if (!ldo_pdata->init_data) |
| 235 | return 0; |
| 236 | |
| 237 | return ldo_pdata->init_data->num_consumer_supplies != 0; |
| 238 | } |
| 239 | #else |
| 240 | static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo) |
| 241 | { |
| 242 | return 0; |
| 243 | } |
| 244 | #endif |
| 245 | |
Bill Pemberton | a73e5df | 2012-11-19 13:25:09 -0500 | [diff] [blame] | 246 | static const struct reg_default wm8994_revc_patch[] = { |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 247 | { 0x102, 0x3 }, |
| 248 | { 0x56, 0x3 }, |
| 249 | { 0x817, 0x0 }, |
| 250 | { 0x102, 0x0 }, |
| 251 | }; |
| 252 | |
Bill Pemberton | a73e5df | 2012-11-19 13:25:09 -0500 | [diff] [blame] | 253 | static const struct reg_default wm8958_reva_patch[] = { |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 254 | { 0x102, 0x3 }, |
| 255 | { 0xcb, 0x81 }, |
| 256 | { 0x817, 0x0 }, |
| 257 | { 0x102, 0x0 }, |
| 258 | }; |
| 259 | |
Bill Pemberton | a73e5df | 2012-11-19 13:25:09 -0500 | [diff] [blame] | 260 | static const struct reg_default wm1811_reva_patch[] = { |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 261 | { 0x102, 0x3 }, |
Mark Brown | 9282a7b | 2012-08-23 16:10:29 +0100 | [diff] [blame] | 262 | { 0x56, 0xc07 }, |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 263 | { 0x5d, 0x7e }, |
| 264 | { 0x5e, 0x0 }, |
| 265 | { 0x102, 0x0 }, |
| 266 | }; |
| 267 | |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 268 | #ifdef CONFIG_OF |
| 269 | static int wm8994_set_pdata_from_of(struct wm8994 *wm8994) |
| 270 | { |
| 271 | struct device_node *np = wm8994->dev->of_node; |
| 272 | struct wm8994_pdata *pdata = &wm8994->pdata; |
| 273 | int i; |
| 274 | |
| 275 | if (!np) |
| 276 | return 0; |
| 277 | |
| 278 | if (of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_defaults, |
| 279 | ARRAY_SIZE(pdata->gpio_defaults)) >= 0) { |
| 280 | for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) { |
| 281 | if (wm8994->pdata.gpio_defaults[i] == 0) |
| 282 | pdata->gpio_defaults[i] |
| 283 | = WM8994_CONFIGURE_GPIO; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | of_property_read_u32_array(np, "wlf,micbias-cfg", pdata->micbias, |
| 288 | ARRAY_SIZE(pdata->micbias)); |
| 289 | |
| 290 | pdata->lineout1_diff = true; |
| 291 | pdata->lineout2_diff = true; |
| 292 | if (of_find_property(np, "wlf,lineout1-se", NULL)) |
| 293 | pdata->lineout1_diff = false; |
| 294 | if (of_find_property(np, "wlf,lineout2-se", NULL)) |
| 295 | pdata->lineout2_diff = false; |
| 296 | |
| 297 | if (of_find_property(np, "wlf,lineout1-feedback", NULL)) |
| 298 | pdata->lineout1fb = true; |
| 299 | if (of_find_property(np, "wlf,lineout2-feedback", NULL)) |
| 300 | pdata->lineout2fb = true; |
| 301 | |
| 302 | if (of_find_property(np, "wlf,ldoena-always-driven", NULL)) |
| 303 | pdata->lineout2fb = true; |
| 304 | |
| 305 | pdata->ldo[0].enable = of_get_named_gpio(np, "wlf,ldo1ena", 0); |
| 306 | if (pdata->ldo[0].enable < 0) |
| 307 | pdata->ldo[0].enable = 0; |
| 308 | |
| 309 | pdata->ldo[1].enable = of_get_named_gpio(np, "wlf,ldo2ena", 0); |
| 310 | if (pdata->ldo[1].enable < 0) |
| 311 | pdata->ldo[1].enable = 0; |
| 312 | |
| 313 | return 0; |
| 314 | } |
| 315 | #else |
| 316 | static int wm8994_set_pdata_from_of(struct wm8994 *wm8994) |
| 317 | { |
| 318 | return 0; |
| 319 | } |
| 320 | #endif |
| 321 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 322 | /* |
| 323 | * Instantiate the generic non-control parts of the device. |
| 324 | */ |
Bill Pemberton | f791be4 | 2012-11-19 13:23:04 -0500 | [diff] [blame] | 325 | static int wm8994_device_init(struct wm8994 *wm8994, int irq) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 326 | { |
Mark Brown | a8a8fc28 | 2012-10-08 11:21:09 +0900 | [diff] [blame] | 327 | struct wm8994_pdata *pdata; |
Mark Brown | 3469789 | 2011-12-03 17:10:32 +0000 | [diff] [blame] | 328 | struct regmap_config *regmap_config; |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 329 | const struct reg_default *regmap_patch = NULL; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 330 | const char *devname; |
Jingoo Han | 222bc78 | 2013-02-20 11:53:36 +0900 | [diff] [blame] | 331 | int ret, i, patch_regs = 0; |
Mark Brown | 26c34c2 | 2011-11-03 13:20:38 +0000 | [diff] [blame] | 332 | int pulls = 0; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 333 | |
Mark Brown | a8a8fc28 | 2012-10-08 11:21:09 +0900 | [diff] [blame] | 334 | if (dev_get_platdata(wm8994->dev)) { |
| 335 | pdata = dev_get_platdata(wm8994->dev); |
| 336 | wm8994->pdata = *pdata; |
| 337 | } |
| 338 | pdata = &wm8994->pdata; |
| 339 | |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 340 | ret = wm8994_set_pdata_from_of(wm8994); |
| 341 | if (ret != 0) |
| 342 | return ret; |
| 343 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 344 | dev_set_drvdata(wm8994->dev, wm8994); |
| 345 | |
| 346 | /* Add the on-chip regulators first for bootstrapping */ |
| 347 | ret = mfd_add_devices(wm8994->dev, -1, |
| 348 | wm8994_regulator_devs, |
| 349 | ARRAY_SIZE(wm8994_regulator_devs), |
Mark Brown | 55692af | 2012-09-11 15:16:36 +0800 | [diff] [blame] | 350 | NULL, 0, NULL); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 351 | if (ret != 0) { |
| 352 | dev_err(wm8994->dev, "Failed to add children: %d\n", ret); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 353 | goto err; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 354 | } |
| 355 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 356 | switch (wm8994->type) { |
Mark Brown | b1f43bf | 2011-05-24 17:35:40 +0800 | [diff] [blame] | 357 | case WM1811: |
| 358 | wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies); |
| 359 | break; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 360 | case WM8994: |
| 361 | wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies); |
| 362 | break; |
| 363 | case WM8958: |
| 364 | wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies); |
| 365 | break; |
| 366 | default: |
| 367 | BUG(); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 368 | goto err; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 369 | } |
| 370 | |
Mark Brown | 2fa3349 | 2011-10-25 13:45:40 +0200 | [diff] [blame] | 371 | wm8994->supplies = devm_kzalloc(wm8994->dev, |
| 372 | sizeof(struct regulator_bulk_data) * |
| 373 | wm8994->num_supplies, GFP_KERNEL); |
Axel Lin | fccbd21 | 2010-08-04 09:44:47 +0800 | [diff] [blame] | 374 | if (!wm8994->supplies) { |
| 375 | ret = -ENOMEM; |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 376 | goto err; |
Axel Lin | fccbd21 | 2010-08-04 09:44:47 +0800 | [diff] [blame] | 377 | } |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 378 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 379 | switch (wm8994->type) { |
Mark Brown | b1f43bf | 2011-05-24 17:35:40 +0800 | [diff] [blame] | 380 | case WM1811: |
| 381 | for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++) |
| 382 | wm8994->supplies[i].supply = wm1811_main_supplies[i]; |
| 383 | break; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 384 | case WM8994: |
| 385 | for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++) |
| 386 | wm8994->supplies[i].supply = wm8994_main_supplies[i]; |
| 387 | break; |
| 388 | case WM8958: |
| 389 | for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++) |
| 390 | wm8994->supplies[i].supply = wm8958_main_supplies[i]; |
| 391 | break; |
| 392 | default: |
| 393 | BUG(); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 394 | goto err; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 395 | } |
| 396 | |
Sachin Kamat | f1c68e4 | 2013-01-08 14:01:22 +0530 | [diff] [blame] | 397 | ret = devm_regulator_bulk_get(wm8994->dev, wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 398 | wm8994->supplies); |
| 399 | if (ret != 0) { |
| 400 | dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 401 | goto err; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 402 | } |
| 403 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 404 | ret = regulator_bulk_enable(wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 405 | wm8994->supplies); |
| 406 | if (ret != 0) { |
| 407 | dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret); |
Sachin Kamat | f1c68e4 | 2013-01-08 14:01:22 +0530 | [diff] [blame] | 408 | goto err; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET); |
| 412 | if (ret < 0) { |
| 413 | dev_err(wm8994->dev, "Failed to read ID register\n"); |
| 414 | goto err_enable; |
| 415 | } |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 416 | switch (ret) { |
Mark Brown | b1f43bf | 2011-05-24 17:35:40 +0800 | [diff] [blame] | 417 | case 0x1811: |
| 418 | devname = "WM1811"; |
| 419 | if (wm8994->type != WM1811) |
| 420 | dev_warn(wm8994->dev, "Device registered as type %d\n", |
| 421 | wm8994->type); |
| 422 | wm8994->type = WM1811; |
| 423 | break; |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 424 | case 0x8994: |
| 425 | devname = "WM8994"; |
| 426 | if (wm8994->type != WM8994) |
| 427 | dev_warn(wm8994->dev, "Device registered as type %d\n", |
| 428 | wm8994->type); |
| 429 | wm8994->type = WM8994; |
| 430 | break; |
| 431 | case 0x8958: |
| 432 | devname = "WM8958"; |
| 433 | if (wm8994->type != WM8958) |
| 434 | dev_warn(wm8994->dev, "Device registered as type %d\n", |
| 435 | wm8994->type); |
| 436 | wm8994->type = WM8958; |
| 437 | break; |
| 438 | default: |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 439 | dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n", |
| 440 | ret); |
| 441 | ret = -EINVAL; |
| 442 | goto err_enable; |
| 443 | } |
| 444 | |
| 445 | ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION); |
| 446 | if (ret < 0) { |
| 447 | dev_err(wm8994->dev, "Failed to read revision register: %d\n", |
| 448 | ret); |
| 449 | goto err_enable; |
| 450 | } |
Mark Brown | cc7a727 | 2012-05-07 10:03:22 +0100 | [diff] [blame] | 451 | wm8994->revision = ret & WM8994_CHIP_REV_MASK; |
| 452 | wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 453 | |
Mark Brown | a2495bc | 2011-06-02 19:18:55 +0100 | [diff] [blame] | 454 | switch (wm8994->type) { |
| 455 | case WM8994: |
Mark Brown | 7ed5849 | 2011-12-01 13:55:49 +0000 | [diff] [blame] | 456 | switch (wm8994->revision) { |
Mark Brown | a2495bc | 2011-06-02 19:18:55 +0100 | [diff] [blame] | 457 | case 0: |
| 458 | case 1: |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 459 | dev_warn(wm8994->dev, |
| 460 | "revision %c not fully supported\n", |
Mark Brown | 7ed5849 | 2011-12-01 13:55:49 +0000 | [diff] [blame] | 461 | 'A' + wm8994->revision); |
Mark Brown | a2495bc | 2011-06-02 19:18:55 +0100 | [diff] [blame] | 462 | break; |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 463 | case 2: |
| 464 | case 3: |
Mark Brown | d54e17f | 2012-11-27 15:23:30 +0000 | [diff] [blame] | 465 | default: |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 466 | regmap_patch = wm8994_revc_patch; |
| 467 | patch_regs = ARRAY_SIZE(wm8994_revc_patch); |
| 468 | break; |
Mark Brown | a2495bc | 2011-06-02 19:18:55 +0100 | [diff] [blame] | 469 | } |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 470 | break; |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 471 | |
| 472 | case WM8958: |
| 473 | switch (wm8994->revision) { |
| 474 | case 0: |
| 475 | regmap_patch = wm8958_reva_patch; |
| 476 | patch_regs = ARRAY_SIZE(wm8958_reva_patch); |
| 477 | break; |
| 478 | default: |
| 479 | break; |
| 480 | } |
| 481 | break; |
| 482 | |
Mark Brown | 443e67e | 2011-11-30 16:51:04 +0000 | [diff] [blame] | 483 | case WM1811: |
| 484 | /* Revision C did not change the relevant layer */ |
Mark Brown | 7ed5849 | 2011-12-01 13:55:49 +0000 | [diff] [blame] | 485 | if (wm8994->revision > 1) |
| 486 | wm8994->revision++; |
Mark Brown | d54e17f | 2012-11-27 15:23:30 +0000 | [diff] [blame] | 487 | |
| 488 | regmap_patch = wm1811_reva_patch; |
| 489 | patch_regs = ARRAY_SIZE(wm1811_reva_patch); |
Mark Brown | 443e67e | 2011-11-30 16:51:04 +0000 | [diff] [blame] | 490 | break; |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 491 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 492 | default: |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 493 | break; |
| 494 | } |
| 495 | |
Mark Brown | cc7a727 | 2012-05-07 10:03:22 +0100 | [diff] [blame] | 496 | dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname, |
| 497 | 'A' + wm8994->revision, wm8994->cust_id); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 498 | |
Mark Brown | 3469789 | 2011-12-03 17:10:32 +0000 | [diff] [blame] | 499 | switch (wm8994->type) { |
| 500 | case WM1811: |
| 501 | regmap_config = &wm1811_regmap_config; |
| 502 | break; |
| 503 | case WM8994: |
| 504 | regmap_config = &wm8994_regmap_config; |
| 505 | break; |
| 506 | case WM8958: |
| 507 | regmap_config = &wm8958_regmap_config; |
| 508 | break; |
| 509 | default: |
| 510 | dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type); |
| 511 | return -EINVAL; |
| 512 | } |
| 513 | |
| 514 | ret = regmap_reinit_cache(wm8994->regmap, regmap_config); |
| 515 | if (ret != 0) { |
| 516 | dev_err(wm8994->dev, "Failed to reinit register cache: %d\n", |
| 517 | ret); |
| 518 | return ret; |
| 519 | } |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 520 | |
Mark Brown | f3799e9 | 2013-05-17 13:25:21 +0100 | [diff] [blame] | 521 | /* Explicitly put the device into reset in case regulators |
| 522 | * don't get disabled in order to ensure we know the device |
| 523 | * state. |
| 524 | */ |
| 525 | ret = wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET, |
| 526 | wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET)); |
| 527 | if (ret != 0) { |
| 528 | dev_err(wm8994->dev, "Failed to reset device: %d\n", ret); |
| 529 | return ret; |
| 530 | } |
| 531 | |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 532 | if (regmap_patch) { |
| 533 | ret = regmap_register_patch(wm8994->regmap, regmap_patch, |
| 534 | patch_regs); |
| 535 | if (ret != 0) { |
| 536 | dev_err(wm8994->dev, "Failed to register patch: %d\n", |
| 537 | ret); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 538 | goto err; |
Mark Brown | 462835e | 2012-01-21 12:11:53 +0000 | [diff] [blame] | 539 | } |
| 540 | } |
| 541 | |
Mark Brown | a8a8fc28 | 2012-10-08 11:21:09 +0900 | [diff] [blame] | 542 | wm8994->irq_base = pdata->irq_base; |
| 543 | wm8994->gpio_base = pdata->gpio_base; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 544 | |
Mark Brown | a8a8fc28 | 2012-10-08 11:21:09 +0900 | [diff] [blame] | 545 | /* GPIO configuration is only applied if it's non-zero */ |
| 546 | for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) { |
| 547 | if (pdata->gpio_defaults[i]) { |
| 548 | wm8994_set_bits(wm8994, WM8994_GPIO_1 + i, |
| 549 | 0xffff, pdata->gpio_defaults[i]); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 550 | } |
| 551 | } |
| 552 | |
Mark Brown | a8a8fc28 | 2012-10-08 11:21:09 +0900 | [diff] [blame] | 553 | wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven; |
| 554 | |
| 555 | if (pdata->spkmode_pu) |
| 556 | pulls |= WM8994_SPKMODE_PU; |
| 557 | |
Mark Brown | 26c34c2 | 2011-11-03 13:20:38 +0000 | [diff] [blame] | 558 | /* Disable unneeded pulls */ |
Mark Brown | 881de67 | 2011-08-22 15:43:55 +0200 | [diff] [blame] | 559 | wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, |
Mark Brown | 26c34c2 | 2011-11-03 13:20:38 +0000 | [diff] [blame] | 560 | WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD | |
| 561 | WM8994_SPKMODE_PU | WM8994_CSNADDR_PD, |
| 562 | pulls); |
Mark Brown | 881de67 | 2011-08-22 15:43:55 +0200 | [diff] [blame] | 563 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 564 | /* In some system designs where the regulators are not in use, |
| 565 | * we can achieve a small reduction in leakage currents by |
| 566 | * floating LDO outputs. This bit makes no difference if the |
| 567 | * LDOs are enabled, it only affects cases where the LDOs were |
| 568 | * in operation and are then disabled. |
| 569 | */ |
| 570 | for (i = 0; i < WM8994_NUM_LDO_REGS; i++) { |
| 571 | if (wm8994_ldo_in_use(pdata, i)) |
| 572 | wm8994_set_bits(wm8994, WM8994_LDO_1 + i, |
| 573 | WM8994_LDO1_DISCH, WM8994_LDO1_DISCH); |
| 574 | else |
| 575 | wm8994_set_bits(wm8994, WM8994_LDO_1 + i, |
| 576 | WM8994_LDO1_DISCH, 0); |
| 577 | } |
| 578 | |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 579 | wm8994_irq_init(wm8994); |
| 580 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 581 | ret = mfd_add_devices(wm8994->dev, -1, |
| 582 | wm8994_devs, ARRAY_SIZE(wm8994_devs), |
Mark Brown | 55692af | 2012-09-11 15:16:36 +0800 | [diff] [blame] | 583 | NULL, 0, NULL); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 584 | if (ret != 0) { |
| 585 | dev_err(wm8994->dev, "Failed to add children: %d\n", ret); |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 586 | goto err_irq; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 587 | } |
| 588 | |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 589 | pm_runtime_enable(wm8994->dev); |
Mark Brown | ee67b0c | 2012-02-06 18:47:37 +0000 | [diff] [blame] | 590 | pm_runtime_idle(wm8994->dev); |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 591 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 592 | return 0; |
| 593 | |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 594 | err_irq: |
| 595 | wm8994_irq_exit(wm8994); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 596 | err_enable: |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 597 | regulator_bulk_disable(wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 598 | wm8994->supplies); |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 599 | err: |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 600 | mfd_remove_devices(wm8994->dev); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 601 | return ret; |
| 602 | } |
| 603 | |
Bill Pemberton | 4740f73 | 2012-11-19 13:26:01 -0500 | [diff] [blame] | 604 | static void wm8994_device_exit(struct wm8994 *wm8994) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 605 | { |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 606 | pm_runtime_disable(wm8994->dev); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 607 | mfd_remove_devices(wm8994->dev); |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 608 | wm8994_irq_exit(wm8994); |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 609 | regulator_bulk_disable(wm8994->num_supplies, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 610 | wm8994->supplies); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 611 | } |
| 612 | |
Mark Brown | cf763c2 | 2011-11-22 18:22:29 +0000 | [diff] [blame] | 613 | static const struct of_device_id wm8994_of_match[] = { |
Mark Brown | 39aa3b5 | 2013-04-11 18:11:50 +0100 | [diff] [blame] | 614 | { .compatible = "wlf,wm1811", .data = (void *)WM1811 }, |
| 615 | { .compatible = "wlf,wm8994", .data = (void *)WM8994 }, |
| 616 | { .compatible = "wlf,wm8958", .data = (void *)WM8958 }, |
Mark Brown | cf763c2 | 2011-11-22 18:22:29 +0000 | [diff] [blame] | 617 | { } |
| 618 | }; |
| 619 | MODULE_DEVICE_TABLE(of, wm8994_of_match); |
| 620 | |
Bill Pemberton | f791be4 | 2012-11-19 13:23:04 -0500 | [diff] [blame] | 621 | static int wm8994_i2c_probe(struct i2c_client *i2c, |
Mark Brown | 027d676 | 2012-02-17 15:57:01 -0800 | [diff] [blame] | 622 | const struct i2c_device_id *id) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 623 | { |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 624 | const struct of_device_id *of_id; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 625 | struct wm8994 *wm8994; |
Mark Brown | d6c645fc | 2011-06-17 13:02:27 +0100 | [diff] [blame] | 626 | int ret; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 627 | |
Mark Brown | 2fa3349 | 2011-10-25 13:45:40 +0200 | [diff] [blame] | 628 | wm8994 = devm_kzalloc(&i2c->dev, sizeof(struct wm8994), GFP_KERNEL); |
Axel Lin | d0a1169 | 2010-08-09 14:52:16 +0800 | [diff] [blame] | 629 | if (wm8994 == NULL) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 630 | return -ENOMEM; |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 631 | |
| 632 | i2c_set_clientdata(i2c, wm8994); |
| 633 | wm8994->dev = &i2c->dev; |
Mark Brown | c9fbf7e | 2010-03-26 16:49:15 +0000 | [diff] [blame] | 634 | wm8994->irq = i2c->irq; |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 635 | |
| 636 | if (i2c->dev.of_node) { |
| 637 | of_id = of_match_device(wm8994_of_match, &i2c->dev); |
| 638 | if (of_id) |
Lee Jones | 7f8279c | 2014-01-23 14:47:13 +0000 | [diff] [blame] | 639 | wm8994->type = (enum wm8994_type)of_id->data; |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 640 | } else { |
| 641 | wm8994->type = id->driver_data; |
| 642 | } |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 643 | |
Mark Brown | 9db4249 | 2012-01-30 20:06:05 +0000 | [diff] [blame] | 644 | wm8994->regmap = devm_regmap_init_i2c(i2c, &wm8994_base_regmap_config); |
Mark Brown | d6c645fc | 2011-06-17 13:02:27 +0100 | [diff] [blame] | 645 | if (IS_ERR(wm8994->regmap)) { |
| 646 | ret = PTR_ERR(wm8994->regmap); |
| 647 | dev_err(wm8994->dev, "Failed to allocate register map: %d\n", |
| 648 | ret); |
Mark Brown | d6c645fc | 2011-06-17 13:02:27 +0100 | [diff] [blame] | 649 | return ret; |
| 650 | } |
| 651 | |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 652 | return wm8994_device_init(wm8994, i2c->irq); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 653 | } |
| 654 | |
Bill Pemberton | 4740f73 | 2012-11-19 13:26:01 -0500 | [diff] [blame] | 655 | static int wm8994_i2c_remove(struct i2c_client *i2c) |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 656 | { |
| 657 | struct wm8994 *wm8994 = i2c_get_clientdata(i2c); |
| 658 | |
| 659 | wm8994_device_exit(wm8994); |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 664 | static const struct i2c_device_id wm8994_i2c_id[] = { |
Mark Brown | b1f43bf | 2011-05-24 17:35:40 +0800 | [diff] [blame] | 665 | { "wm1811", WM1811 }, |
Mark Brown | 71d1718 | 2011-11-30 20:16:42 +0000 | [diff] [blame] | 666 | { "wm1811a", WM1811 }, |
Mark Brown | 559e0df | 2010-08-31 19:25:12 +0100 | [diff] [blame] | 667 | { "wm8994", WM8994 }, |
| 668 | { "wm8958", WM8958 }, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 669 | { } |
| 670 | }; |
| 671 | MODULE_DEVICE_TABLE(i2c, wm8994_i2c_id); |
| 672 | |
Mark Brown | 6394678 | 2013-03-22 12:40:22 +0100 | [diff] [blame] | 673 | static const struct dev_pm_ops wm8994_pm_ops = { |
| 674 | SET_RUNTIME_PM_OPS(wm8994_suspend, wm8994_resume, NULL) |
| 675 | }; |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 676 | |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 677 | static struct i2c_driver wm8994_i2c_driver = { |
| 678 | .driver = { |
Mark Brown | d450f19 | 2010-11-26 17:19:35 +0000 | [diff] [blame] | 679 | .name = "wm8994", |
| 680 | .owner = THIS_MODULE, |
| 681 | .pm = &wm8994_pm_ops, |
Mark Brown | 20fb277 | 2013-04-11 18:11:51 +0100 | [diff] [blame] | 682 | .of_match_table = of_match_ptr(wm8994_of_match), |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 683 | }, |
| 684 | .probe = wm8994_i2c_probe, |
Bill Pemberton | 8444921 | 2012-11-19 13:20:24 -0500 | [diff] [blame] | 685 | .remove = wm8994_i2c_remove, |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 686 | .id_table = wm8994_i2c_id, |
| 687 | }; |
| 688 | |
Mark Brown | ceb57d2 | 2012-05-07 10:03:23 +0100 | [diff] [blame] | 689 | module_i2c_driver(wm8994_i2c_driver); |
Mark Brown | 9e50108 | 2010-01-29 18:20:29 +0000 | [diff] [blame] | 690 | |
| 691 | MODULE_DESCRIPTION("Core support for the WM8994 audio CODEC"); |
| 692 | MODULE_LICENSE("GPL"); |
| 693 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |