tjh.dev / kernel
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kernel / include / linux / mfd / wm831x / core.h
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1/* 2 * include/linux/mfd/wm831x/core.h -- Core interface for WM831x 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#ifndef __MFD_WM831X_CORE_H__ 16#define __MFD_WM831X_CORE_H__ 17 18#include <linux/completion.h> 19#include <linux/interrupt.h> 20#include <linux/list.h> 21#include <linux/regmap.h> 22 23/* 24 * Register values. 25 */ 26#define WM831X_RESET_ID 0x00 27#define WM831X_REVISION 0x01 28#define WM831X_PARENT_ID 0x4000 29#define WM831X_SYSVDD_CONTROL 0x4001 30#define WM831X_THERMAL_MONITORING 0x4002 31#define WM831X_POWER_STATE 0x4003 32#define WM831X_WATCHDOG 0x4004 33#define WM831X_ON_PIN_CONTROL 0x4005 34#define WM831X_RESET_CONTROL 0x4006 35#define WM831X_CONTROL_INTERFACE 0x4007 36#define WM831X_SECURITY_KEY 0x4008 37#define WM831X_SOFTWARE_SCRATCH 0x4009 38#define WM831X_OTP_CONTROL 0x400A 39#define WM831X_GPIO_LEVEL 0x400C 40#define WM831X_SYSTEM_STATUS 0x400D 41#define WM831X_ON_SOURCE 0x400E 42#define WM831X_OFF_SOURCE 0x400F 43#define WM831X_SYSTEM_INTERRUPTS 0x4010 44#define WM831X_INTERRUPT_STATUS_1 0x4011 45#define WM831X_INTERRUPT_STATUS_2 0x4012 46#define WM831X_INTERRUPT_STATUS_3 0x4013 47#define WM831X_INTERRUPT_STATUS_4 0x4014 48#define WM831X_INTERRUPT_STATUS_5 0x4015 49#define WM831X_IRQ_CONFIG 0x4017 50#define WM831X_SYSTEM_INTERRUPTS_MASK 0x4018 51#define WM831X_INTERRUPT_STATUS_1_MASK 0x4019 52#define WM831X_INTERRUPT_STATUS_2_MASK 0x401A 53#define WM831X_INTERRUPT_STATUS_3_MASK 0x401B 54#define WM831X_INTERRUPT_STATUS_4_MASK 0x401C 55#define WM831X_INTERRUPT_STATUS_5_MASK 0x401D 56#define WM831X_RTC_WRITE_COUNTER 0x4020 57#define WM831X_RTC_TIME_1 0x4021 58#define WM831X_RTC_TIME_2 0x4022 59#define WM831X_RTC_ALARM_1 0x4023 60#define WM831X_RTC_ALARM_2 0x4024 61#define WM831X_RTC_CONTROL 0x4025 62#define WM831X_RTC_TRIM 0x4026 63#define WM831X_TOUCH_CONTROL_1 0x4028 64#define WM831X_TOUCH_CONTROL_2 0x4029 65#define WM831X_TOUCH_DATA_X 0x402A 66#define WM831X_TOUCH_DATA_Y 0x402B 67#define WM831X_TOUCH_DATA_Z 0x402C 68#define WM831X_AUXADC_DATA 0x402D 69#define WM831X_AUXADC_CONTROL 0x402E 70#define WM831X_AUXADC_SOURCE 0x402F 71#define WM831X_COMPARATOR_CONTROL 0x4030 72#define WM831X_COMPARATOR_1 0x4031 73#define WM831X_COMPARATOR_2 0x4032 74#define WM831X_COMPARATOR_3 0x4033 75#define WM831X_COMPARATOR_4 0x4034 76#define WM831X_GPIO1_CONTROL 0x4038 77#define WM831X_GPIO2_CONTROL 0x4039 78#define WM831X_GPIO3_CONTROL 0x403A 79#define WM831X_GPIO4_CONTROL 0x403B 80#define WM831X_GPIO5_CONTROL 0x403C 81#define WM831X_GPIO6_CONTROL 0x403D 82#define WM831X_GPIO7_CONTROL 0x403E 83#define WM831X_GPIO8_CONTROL 0x403F 84#define WM831X_GPIO9_CONTROL 0x4040 85#define WM831X_GPIO10_CONTROL 0x4041 86#define WM831X_GPIO11_CONTROL 0x4042 87#define WM831X_GPIO12_CONTROL 0x4043 88#define WM831X_GPIO13_CONTROL 0x4044 89#define WM831X_GPIO14_CONTROL 0x4045 90#define WM831X_GPIO15_CONTROL 0x4046 91#define WM831X_GPIO16_CONTROL 0x4047 92#define WM831X_CHARGER_CONTROL_1 0x4048 93#define WM831X_CHARGER_CONTROL_2 0x4049 94#define WM831X_CHARGER_STATUS 0x404A 95#define WM831X_BACKUP_CHARGER_CONTROL 0x404B 96#define WM831X_STATUS_LED_1 0x404C 97#define WM831X_STATUS_LED_2 0x404D 98#define WM831X_CURRENT_SINK_1 0x404E 99#define WM831X_CURRENT_SINK_2 0x404F 100#define WM831X_DCDC_ENABLE 0x4050 101#define WM831X_LDO_ENABLE 0x4051 102#define WM831X_DCDC_STATUS 0x4052 103#define WM831X_LDO_STATUS 0x4053 104#define WM831X_DCDC_UV_STATUS 0x4054 105#define WM831X_LDO_UV_STATUS 0x4055 106#define WM831X_DC1_CONTROL_1 0x4056 107#define WM831X_DC1_CONTROL_2 0x4057 108#define WM831X_DC1_ON_CONFIG 0x4058 109#define WM831X_DC1_SLEEP_CONTROL 0x4059 110#define WM831X_DC1_DVS_CONTROL 0x405A 111#define WM831X_DC2_CONTROL_1 0x405B 112#define WM831X_DC2_CONTROL_2 0x405C 113#define WM831X_DC2_ON_CONFIG 0x405D 114#define WM831X_DC2_SLEEP_CONTROL 0x405E 115#define WM831X_DC2_DVS_CONTROL 0x405F 116#define WM831X_DC3_CONTROL_1 0x4060 117#define WM831X_DC3_CONTROL_2 0x4061 118#define WM831X_DC3_ON_CONFIG 0x4062 119#define WM831X_DC3_SLEEP_CONTROL 0x4063 120#define WM831X_DC4_CONTROL 0x4064 121#define WM831X_DC4_SLEEP_CONTROL 0x4065 122#define WM832X_DC4_SLEEP_CONTROL 0x4067 123#define WM831X_EPE1_CONTROL 0x4066 124#define WM831X_EPE2_CONTROL 0x4067 125#define WM831X_LDO1_CONTROL 0x4068 126#define WM831X_LDO1_ON_CONTROL 0x4069 127#define WM831X_LDO1_SLEEP_CONTROL 0x406A 128#define WM831X_LDO2_CONTROL 0x406B 129#define WM831X_LDO2_ON_CONTROL 0x406C 130#define WM831X_LDO2_SLEEP_CONTROL 0x406D 131#define WM831X_LDO3_CONTROL 0x406E 132#define WM831X_LDO3_ON_CONTROL 0x406F 133#define WM831X_LDO3_SLEEP_CONTROL 0x4070 134#define WM831X_LDO4_CONTROL 0x4071 135#define WM831X_LDO4_ON_CONTROL 0x4072 136#define WM831X_LDO4_SLEEP_CONTROL 0x4073 137#define WM831X_LDO5_CONTROL 0x4074 138#define WM831X_LDO5_ON_CONTROL 0x4075 139#define WM831X_LDO5_SLEEP_CONTROL 0x4076 140#define WM831X_LDO6_CONTROL 0x4077 141#define WM831X_LDO6_ON_CONTROL 0x4078 142#define WM831X_LDO6_SLEEP_CONTROL 0x4079 143#define WM831X_LDO7_CONTROL 0x407A 144#define WM831X_LDO7_ON_CONTROL 0x407B 145#define WM831X_LDO7_SLEEP_CONTROL 0x407C 146#define WM831X_LDO8_CONTROL 0x407D 147#define WM831X_LDO8_ON_CONTROL 0x407E 148#define WM831X_LDO8_SLEEP_CONTROL 0x407F 149#define WM831X_LDO9_CONTROL 0x4080 150#define WM831X_LDO9_ON_CONTROL 0x4081 151#define WM831X_LDO9_SLEEP_CONTROL 0x4082 152#define WM831X_LDO10_CONTROL 0x4083 153#define WM831X_LDO10_ON_CONTROL 0x4084 154#define WM831X_LDO10_SLEEP_CONTROL 0x4085 155#define WM831X_LDO11_ON_CONTROL 0x4087 156#define WM831X_LDO11_SLEEP_CONTROL 0x4088 157#define WM831X_POWER_GOOD_SOURCE_1 0x408E 158#define WM831X_POWER_GOOD_SOURCE_2 0x408F 159#define WM831X_CLOCK_CONTROL_1 0x4090 160#define WM831X_CLOCK_CONTROL_2 0x4091 161#define WM831X_FLL_CONTROL_1 0x4092 162#define WM831X_FLL_CONTROL_2 0x4093 163#define WM831X_FLL_CONTROL_3 0x4094 164#define WM831X_FLL_CONTROL_4 0x4095 165#define WM831X_FLL_CONTROL_5 0x4096 166#define WM831X_UNIQUE_ID_1 0x7800 167#define WM831X_UNIQUE_ID_2 0x7801 168#define WM831X_UNIQUE_ID_3 0x7802 169#define WM831X_UNIQUE_ID_4 0x7803 170#define WM831X_UNIQUE_ID_5 0x7804 171#define WM831X_UNIQUE_ID_6 0x7805 172#define WM831X_UNIQUE_ID_7 0x7806 173#define WM831X_UNIQUE_ID_8 0x7807 174#define WM831X_FACTORY_OTP_ID 0x7808 175#define WM831X_FACTORY_OTP_1 0x7809 176#define WM831X_FACTORY_OTP_2 0x780A 177#define WM831X_FACTORY_OTP_3 0x780B 178#define WM831X_FACTORY_OTP_4 0x780C 179#define WM831X_FACTORY_OTP_5 0x780D 180#define WM831X_CUSTOMER_OTP_ID 0x7810 181#define WM831X_DC1_OTP_CONTROL 0x7811 182#define WM831X_DC2_OTP_CONTROL 0x7812 183#define WM831X_DC3_OTP_CONTROL 0x7813 184#define WM831X_LDO1_2_OTP_CONTROL 0x7814 185#define WM831X_LDO3_4_OTP_CONTROL 0x7815 186#define WM831X_LDO5_6_OTP_CONTROL 0x7816 187#define WM831X_LDO7_8_OTP_CONTROL 0x7817 188#define WM831X_LDO9_10_OTP_CONTROL 0x7818 189#define WM831X_LDO11_EPE_CONTROL 0x7819 190#define WM831X_GPIO1_OTP_CONTROL 0x781A 191#define WM831X_GPIO2_OTP_CONTROL 0x781B 192#define WM831X_GPIO3_OTP_CONTROL 0x781C 193#define WM831X_GPIO4_OTP_CONTROL 0x781D 194#define WM831X_GPIO5_OTP_CONTROL 0x781E 195#define WM831X_GPIO6_OTP_CONTROL 0x781F 196#define WM831X_DBE_CHECK_DATA 0x7827 197 198/* 199 * R0 (0x00) - Reset ID 200 */ 201#define WM831X_CHIP_ID_MASK 0xFFFF /* CHIP_ID - [15:0] */ 202#define WM831X_CHIP_ID_SHIFT 0 /* CHIP_ID - [15:0] */ 203#define WM831X_CHIP_ID_WIDTH 16 /* CHIP_ID - [15:0] */ 204 205/* 206 * R1 (0x01) - Revision 207 */ 208#define WM831X_PARENT_REV_MASK 0xFF00 /* PARENT_REV - [15:8] */ 209#define WM831X_PARENT_REV_SHIFT 8 /* PARENT_REV - [15:8] */ 210#define WM831X_PARENT_REV_WIDTH 8 /* PARENT_REV - [15:8] */ 211#define WM831X_CHILD_REV_MASK 0x00FF /* CHILD_REV - [7:0] */ 212#define WM831X_CHILD_REV_SHIFT 0 /* CHILD_REV - [7:0] */ 213#define WM831X_CHILD_REV_WIDTH 8 /* CHILD_REV - [7:0] */ 214 215/* 216 * R16384 (0x4000) - Parent ID 217 */ 218#define WM831X_PARENT_ID_MASK 0xFFFF /* PARENT_ID - [15:0] */ 219#define WM831X_PARENT_ID_SHIFT 0 /* PARENT_ID - [15:0] */ 220#define WM831X_PARENT_ID_WIDTH 16 /* PARENT_ID - [15:0] */ 221 222/* 223 * R16389 (0x4005) - ON Pin Control 224 */ 225#define WM831X_ON_PIN_SECACT_MASK 0x0300 /* ON_PIN_SECACT - [9:8] */ 226#define WM831X_ON_PIN_SECACT_SHIFT 8 /* ON_PIN_SECACT - [9:8] */ 227#define WM831X_ON_PIN_SECACT_WIDTH 2 /* ON_PIN_SECACT - [9:8] */ 228#define WM831X_ON_PIN_PRIMACT_MASK 0x0030 /* ON_PIN_PRIMACT - [5:4] */ 229#define WM831X_ON_PIN_PRIMACT_SHIFT 4 /* ON_PIN_PRIMACT - [5:4] */ 230#define WM831X_ON_PIN_PRIMACT_WIDTH 2 /* ON_PIN_PRIMACT - [5:4] */ 231#define WM831X_ON_PIN_STS 0x0008 /* ON_PIN_STS */ 232#define WM831X_ON_PIN_STS_MASK 0x0008 /* ON_PIN_STS */ 233#define WM831X_ON_PIN_STS_SHIFT 3 /* ON_PIN_STS */ 234#define WM831X_ON_PIN_STS_WIDTH 1 /* ON_PIN_STS */ 235#define WM831X_ON_PIN_TO_MASK 0x0003 /* ON_PIN_TO - [1:0] */ 236#define WM831X_ON_PIN_TO_SHIFT 0 /* ON_PIN_TO - [1:0] */ 237#define WM831X_ON_PIN_TO_WIDTH 2 /* ON_PIN_TO - [1:0] */ 238 239/* 240 * R16528 (0x4090) - Clock Control 1 241 */ 242#define WM831X_CLKOUT_ENA 0x8000 /* CLKOUT_ENA */ 243#define WM831X_CLKOUT_ENA_MASK 0x8000 /* CLKOUT_ENA */ 244#define WM831X_CLKOUT_ENA_SHIFT 15 /* CLKOUT_ENA */ 245#define WM831X_CLKOUT_ENA_WIDTH 1 /* CLKOUT_ENA */ 246#define WM831X_CLKOUT_OD 0x2000 /* CLKOUT_OD */ 247#define WM831X_CLKOUT_OD_MASK 0x2000 /* CLKOUT_OD */ 248#define WM831X_CLKOUT_OD_SHIFT 13 /* CLKOUT_OD */ 249#define WM831X_CLKOUT_OD_WIDTH 1 /* CLKOUT_OD */ 250#define WM831X_CLKOUT_SLOT_MASK 0x0700 /* CLKOUT_SLOT - [10:8] */ 251#define WM831X_CLKOUT_SLOT_SHIFT 8 /* CLKOUT_SLOT - [10:8] */ 252#define WM831X_CLKOUT_SLOT_WIDTH 3 /* CLKOUT_SLOT - [10:8] */ 253#define WM831X_CLKOUT_SLPSLOT_MASK 0x0070 /* CLKOUT_SLPSLOT - [6:4] */ 254#define WM831X_CLKOUT_SLPSLOT_SHIFT 4 /* CLKOUT_SLPSLOT - [6:4] */ 255#define WM831X_CLKOUT_SLPSLOT_WIDTH 3 /* CLKOUT_SLPSLOT - [6:4] */ 256#define WM831X_CLKOUT_SRC 0x0001 /* CLKOUT_SRC */ 257#define WM831X_CLKOUT_SRC_MASK 0x0001 /* CLKOUT_SRC */ 258#define WM831X_CLKOUT_SRC_SHIFT 0 /* CLKOUT_SRC */ 259#define WM831X_CLKOUT_SRC_WIDTH 1 /* CLKOUT_SRC */ 260 261/* 262 * R16529 (0x4091) - Clock Control 2 263 */ 264#define WM831X_XTAL_INH 0x8000 /* XTAL_INH */ 265#define WM831X_XTAL_INH_MASK 0x8000 /* XTAL_INH */ 266#define WM831X_XTAL_INH_SHIFT 15 /* XTAL_INH */ 267#define WM831X_XTAL_INH_WIDTH 1 /* XTAL_INH */ 268#define WM831X_XTAL_ENA 0x2000 /* XTAL_ENA */ 269#define WM831X_XTAL_ENA_MASK 0x2000 /* XTAL_ENA */ 270#define WM831X_XTAL_ENA_SHIFT 13 /* XTAL_ENA */ 271#define WM831X_XTAL_ENA_WIDTH 1 /* XTAL_ENA */ 272#define WM831X_XTAL_BKUPENA 0x1000 /* XTAL_BKUPENA */ 273#define WM831X_XTAL_BKUPENA_MASK 0x1000 /* XTAL_BKUPENA */ 274#define WM831X_XTAL_BKUPENA_SHIFT 12 /* XTAL_BKUPENA */ 275#define WM831X_XTAL_BKUPENA_WIDTH 1 /* XTAL_BKUPENA */ 276#define WM831X_FLL_AUTO 0x0080 /* FLL_AUTO */ 277#define WM831X_FLL_AUTO_MASK 0x0080 /* FLL_AUTO */ 278#define WM831X_FLL_AUTO_SHIFT 7 /* FLL_AUTO */ 279#define WM831X_FLL_AUTO_WIDTH 1 /* FLL_AUTO */ 280#define WM831X_FLL_AUTO_FREQ_MASK 0x0007 /* FLL_AUTO_FREQ - [2:0] */ 281#define WM831X_FLL_AUTO_FREQ_SHIFT 0 /* FLL_AUTO_FREQ - [2:0] */ 282#define WM831X_FLL_AUTO_FREQ_WIDTH 3 /* FLL_AUTO_FREQ - [2:0] */ 283 284/* 285 * R16530 (0x4092) - FLL Control 1 286 */ 287#define WM831X_FLL_FRAC 0x0004 /* FLL_FRAC */ 288#define WM831X_FLL_FRAC_MASK 0x0004 /* FLL_FRAC */ 289#define WM831X_FLL_FRAC_SHIFT 2 /* FLL_FRAC */ 290#define WM831X_FLL_FRAC_WIDTH 1 /* FLL_FRAC */ 291#define WM831X_FLL_OSC_ENA 0x0002 /* FLL_OSC_ENA */ 292#define WM831X_FLL_OSC_ENA_MASK 0x0002 /* FLL_OSC_ENA */ 293#define WM831X_FLL_OSC_ENA_SHIFT 1 /* FLL_OSC_ENA */ 294#define WM831X_FLL_OSC_ENA_WIDTH 1 /* FLL_OSC_ENA */ 295#define WM831X_FLL_ENA 0x0001 /* FLL_ENA */ 296#define WM831X_FLL_ENA_MASK 0x0001 /* FLL_ENA */ 297#define WM831X_FLL_ENA_SHIFT 0 /* FLL_ENA */ 298#define WM831X_FLL_ENA_WIDTH 1 /* FLL_ENA */ 299 300/* 301 * R16531 (0x4093) - FLL Control 2 302 */ 303#define WM831X_FLL_OUTDIV_MASK 0x3F00 /* FLL_OUTDIV - [13:8] */ 304#define WM831X_FLL_OUTDIV_SHIFT 8 /* FLL_OUTDIV - [13:8] */ 305#define WM831X_FLL_OUTDIV_WIDTH 6 /* FLL_OUTDIV - [13:8] */ 306#define WM831X_FLL_CTRL_RATE_MASK 0x0070 /* FLL_CTRL_RATE - [6:4] */ 307#define WM831X_FLL_CTRL_RATE_SHIFT 4 /* FLL_CTRL_RATE - [6:4] */ 308#define WM831X_FLL_CTRL_RATE_WIDTH 3 /* FLL_CTRL_RATE - [6:4] */ 309#define WM831X_FLL_FRATIO_MASK 0x0007 /* FLL_FRATIO - [2:0] */ 310#define WM831X_FLL_FRATIO_SHIFT 0 /* FLL_FRATIO - [2:0] */ 311#define WM831X_FLL_FRATIO_WIDTH 3 /* FLL_FRATIO - [2:0] */ 312 313/* 314 * R16532 (0x4094) - FLL Control 3 315 */ 316#define WM831X_FLL_K_MASK 0xFFFF /* FLL_K - [15:0] */ 317#define WM831X_FLL_K_SHIFT 0 /* FLL_K - [15:0] */ 318#define WM831X_FLL_K_WIDTH 16 /* FLL_K - [15:0] */ 319 320/* 321 * R16533 (0x4095) - FLL Control 4 322 */ 323#define WM831X_FLL_N_MASK 0x7FE0 /* FLL_N - [14:5] */ 324#define WM831X_FLL_N_SHIFT 5 /* FLL_N - [14:5] */ 325#define WM831X_FLL_N_WIDTH 10 /* FLL_N - [14:5] */ 326#define WM831X_FLL_GAIN_MASK 0x000F /* FLL_GAIN - [3:0] */ 327#define WM831X_FLL_GAIN_SHIFT 0 /* FLL_GAIN - [3:0] */ 328#define WM831X_FLL_GAIN_WIDTH 4 /* FLL_GAIN - [3:0] */ 329 330/* 331 * R16534 (0x4096) - FLL Control 5 332 */ 333#define WM831X_FLL_CLK_REF_DIV_MASK 0x0018 /* FLL_CLK_REF_DIV - [4:3] */ 334#define WM831X_FLL_CLK_REF_DIV_SHIFT 3 /* FLL_CLK_REF_DIV - [4:3] */ 335#define WM831X_FLL_CLK_REF_DIV_WIDTH 2 /* FLL_CLK_REF_DIV - [4:3] */ 336#define WM831X_FLL_CLK_SRC_MASK 0x0003 /* FLL_CLK_SRC - [1:0] */ 337#define WM831X_FLL_CLK_SRC_SHIFT 0 /* FLL_CLK_SRC - [1:0] */ 338#define WM831X_FLL_CLK_SRC_WIDTH 2 /* FLL_CLK_SRC - [1:0] */ 339 340struct regulator_dev; 341 342#define WM831X_NUM_IRQ_REGS 5 343#define WM831X_NUM_GPIO_REGS 16 344 345enum wm831x_parent { 346 WM8310 = 0x8310, 347 WM8311 = 0x8311, 348 WM8312 = 0x8312, 349 WM8320 = 0x8320, 350 WM8321 = 0x8321, 351 WM8325 = 0x8325, 352 WM8326 = 0x8326, 353}; 354 355struct wm831x; 356enum wm831x_auxadc; 357 358typedef int (*wm831x_auxadc_read_fn)(struct wm831x *wm831x, 359 enum wm831x_auxadc input); 360 361struct wm831x { 362 struct mutex io_lock; 363 364 struct device *dev; 365 366 struct regmap *regmap; 367 368 int irq; /* Our chip IRQ */ 369 struct mutex irq_lock; 370 int irq_base; 371 int irq_masks_cur[WM831X_NUM_IRQ_REGS]; /* Currently active value */ 372 int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */ 373 374 bool soft_shutdown; 375 376 /* Chip revision based flags */ 377 unsigned has_gpio_ena:1; /* Has GPIO enable bit */ 378 unsigned has_cs_sts:1; /* Has current sink status bit */ 379 unsigned charger_irq_wake:1; /* Are charger IRQs a wake source? */ 380 381 int num_gpio; 382 383 /* Used by the interrupt controller code to post writes */ 384 int gpio_update[WM831X_NUM_GPIO_REGS]; 385 bool gpio_level[WM831X_NUM_GPIO_REGS]; 386 387 struct mutex auxadc_lock; 388 struct list_head auxadc_pending; 389 u16 auxadc_active; 390 wm831x_auxadc_read_fn auxadc_read; 391 392 /* The WM831x has a security key blocking access to certain 393 * registers. The mutex is taken by the accessors for locking 394 * and unlocking the security key, locked is used to fail 395 * writes if the lock is held. 396 */ 397 struct mutex key_lock; 398 unsigned int locked:1; 399}; 400 401/* Device I/O API */ 402int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg); 403int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg, 404 unsigned short val); 405void wm831x_reg_lock(struct wm831x *wm831x); 406int wm831x_reg_unlock(struct wm831x *wm831x); 407int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg, 408 unsigned short mask, unsigned short val); 409int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg, 410 int count, u16 *buf); 411 412int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq); 413void wm831x_device_exit(struct wm831x *wm831x); 414int wm831x_device_suspend(struct wm831x *wm831x); 415void wm831x_device_shutdown(struct wm831x *wm831x); 416int wm831x_irq_init(struct wm831x *wm831x, int irq); 417void wm831x_irq_exit(struct wm831x *wm831x); 418void wm831x_auxadc_init(struct wm831x *wm831x); 419 420extern struct regmap_config wm831x_regmap_config; 421 422#endif