LXR linux/include/linux/mfd/wm831x/core.h

   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/irqdomain.h>
  21#include <linux/list.h>
  22#include <linux/regmap.h>
  23#include <linux/mfd/wm831x/auxadc.h>
  24#include <linux/mfd/wm831x/pdata.h>
  25#include <linux/of.h>
  26
  27/*
  28 * Register values.
  29 */
  30#define WM831X_RESET_ID                         0x00
  31#define WM831X_REVISION                         0x01
  32#define WM831X_PARENT_ID                        0x4000
  33#define WM831X_SYSVDD_CONTROL                   0x4001
  34#define WM831X_THERMAL_MONITORING               0x4002
  35#define WM831X_POWER_STATE                      0x4003
  36#define WM831X_WATCHDOG                         0x4004
  37#define WM831X_ON_PIN_CONTROL                   0x4005
  38#define WM831X_RESET_CONTROL                    0x4006
  39#define WM831X_CONTROL_INTERFACE                0x4007
  40#define WM831X_SECURITY_KEY                     0x4008
  41#define WM831X_SOFTWARE_SCRATCH                 0x4009
  42#define WM831X_OTP_CONTROL                      0x400A
  43#define WM831X_GPIO_LEVEL                       0x400C
  44#define WM831X_SYSTEM_STATUS                    0x400D
  45#define WM831X_ON_SOURCE                        0x400E
  46#define WM831X_OFF_SOURCE                       0x400F
  47#define WM831X_SYSTEM_INTERRUPTS                0x4010
  48#define WM831X_INTERRUPT_STATUS_1               0x4011
  49#define WM831X_INTERRUPT_STATUS_2               0x4012
  50#define WM831X_INTERRUPT_STATUS_3               0x4013
  51#define WM831X_INTERRUPT_STATUS_4               0x4014
  52#define WM831X_INTERRUPT_STATUS_5               0x4015
  53#define WM831X_IRQ_CONFIG                       0x4017
  54#define WM831X_SYSTEM_INTERRUPTS_MASK           0x4018
  55#define WM831X_INTERRUPT_STATUS_1_MASK          0x4019
  56#define WM831X_INTERRUPT_STATUS_2_MASK          0x401A
  57#define WM831X_INTERRUPT_STATUS_3_MASK          0x401B
  58#define WM831X_INTERRUPT_STATUS_4_MASK          0x401C
  59#define WM831X_INTERRUPT_STATUS_5_MASK          0x401D
  60#define WM831X_RTC_WRITE_COUNTER                0x4020
  61#define WM831X_RTC_TIME_1                       0x4021
  62#define WM831X_RTC_TIME_2                       0x4022
  63#define WM831X_RTC_ALARM_1                      0x4023
  64#define WM831X_RTC_ALARM_2                      0x4024
  65#define WM831X_RTC_CONTROL                      0x4025
  66#define WM831X_RTC_TRIM                         0x4026
  67#define WM831X_TOUCH_CONTROL_1                  0x4028
  68#define WM831X_TOUCH_CONTROL_2                  0x4029
  69#define WM831X_TOUCH_DATA_X                     0x402A
  70#define WM831X_TOUCH_DATA_Y                     0x402B
  71#define WM831X_TOUCH_DATA_Z                     0x402C
  72#define WM831X_AUXADC_DATA                      0x402D
  73#define WM831X_AUXADC_CONTROL                   0x402E
  74#define WM831X_AUXADC_SOURCE                    0x402F
  75#define WM831X_COMPARATOR_CONTROL               0x4030
  76#define WM831X_COMPARATOR_1                     0x4031
  77#define WM831X_COMPARATOR_2                     0x4032
  78#define WM831X_COMPARATOR_3                     0x4033
  79#define WM831X_COMPARATOR_4                     0x4034
  80#define WM831X_GPIO1_CONTROL                    0x4038
  81#define WM831X_GPIO2_CONTROL                    0x4039
  82#define WM831X_GPIO3_CONTROL                    0x403A
  83#define WM831X_GPIO4_CONTROL                    0x403B
  84#define WM831X_GPIO5_CONTROL                    0x403C
  85#define WM831X_GPIO6_CONTROL                    0x403D
  86#define WM831X_GPIO7_CONTROL                    0x403E
  87#define WM831X_GPIO8_CONTROL                    0x403F
  88#define WM831X_GPIO9_CONTROL                    0x4040
  89#define WM831X_GPIO10_CONTROL                   0x4041
  90#define WM831X_GPIO11_CONTROL                   0x4042
  91#define WM831X_GPIO12_CONTROL                   0x4043
  92#define WM831X_GPIO13_CONTROL                   0x4044
  93#define WM831X_GPIO14_CONTROL                   0x4045
  94#define WM831X_GPIO15_CONTROL                   0x4046
  95#define WM831X_GPIO16_CONTROL                   0x4047
  96#define WM831X_CHARGER_CONTROL_1                0x4048
  97#define WM831X_CHARGER_CONTROL_2                0x4049
  98#define WM831X_CHARGER_STATUS                   0x404A
  99#define WM831X_BACKUP_CHARGER_CONTROL           0x404B
 100#define WM831X_STATUS_LED_1                     0x404C
 101#define WM831X_STATUS_LED_2                     0x404D
 102#define WM831X_CURRENT_SINK_1                   0x404E
 103#define WM831X_CURRENT_SINK_2                   0x404F
 104#define WM831X_DCDC_ENABLE                      0x4050
 105#define WM831X_LDO_ENABLE                       0x4051
 106#define WM831X_DCDC_STATUS                      0x4052
 107#define WM831X_LDO_STATUS                       0x4053
 108#define WM831X_DCDC_UV_STATUS                   0x4054
 109#define WM831X_LDO_UV_STATUS                    0x4055
 110#define WM831X_DC1_CONTROL_1                    0x4056
 111#define WM831X_DC1_CONTROL_2                    0x4057
 112#define WM831X_DC1_ON_CONFIG                    0x4058
 113#define WM831X_DC1_SLEEP_CONTROL                0x4059
 114#define WM831X_DC1_DVS_CONTROL                  0x405A
 115#define WM831X_DC2_CONTROL_1                    0x405B
 116#define WM831X_DC2_CONTROL_2                    0x405C
 117#define WM831X_DC2_ON_CONFIG                    0x405D
 118#define WM831X_DC2_SLEEP_CONTROL                0x405E
 119#define WM831X_DC2_DVS_CONTROL                  0x405F
 120#define WM831X_DC3_CONTROL_1                    0x4060
 121#define WM831X_DC3_CONTROL_2                    0x4061
 122#define WM831X_DC3_ON_CONFIG                    0x4062
 123#define WM831X_DC3_SLEEP_CONTROL                0x4063
 124#define WM831X_DC4_CONTROL                      0x4064
 125#define WM831X_DC4_SLEEP_CONTROL                0x4065
 126#define WM832X_DC4_SLEEP_CONTROL                0x4067
 127#define WM831X_EPE1_CONTROL                     0x4066
 128#define WM831X_EPE2_CONTROL                     0x4067
 129#define WM831X_LDO1_CONTROL                     0x4068
 130#define WM831X_LDO1_ON_CONTROL                  0x4069
 131#define WM831X_LDO1_SLEEP_CONTROL               0x406A
 132#define WM831X_LDO2_CONTROL                     0x406B
 133#define WM831X_LDO2_ON_CONTROL                  0x406C
 134#define WM831X_LDO2_SLEEP_CONTROL               0x406D
 135#define WM831X_LDO3_CONTROL                     0x406E
 136#define WM831X_LDO3_ON_CONTROL                  0x406F
 137#define WM831X_LDO3_SLEEP_CONTROL               0x4070
 138#define WM831X_LDO4_CONTROL                     0x4071
 139#define WM831X_LDO4_ON_CONTROL                  0x4072
 140#define WM831X_LDO4_SLEEP_CONTROL               0x4073
 141#define WM831X_LDO5_CONTROL                     0x4074
 142#define WM831X_LDO5_ON_CONTROL                  0x4075
 143#define WM831X_LDO5_SLEEP_CONTROL               0x4076
 144#define WM831X_LDO6_CONTROL                     0x4077
 145#define WM831X_LDO6_ON_CONTROL                  0x4078
 146#define WM831X_LDO6_SLEEP_CONTROL               0x4079
 147#define WM831X_LDO7_CONTROL                     0x407A
 148#define WM831X_LDO7_ON_CONTROL                  0x407B
 149#define WM831X_LDO7_SLEEP_CONTROL               0x407C
 150#define WM831X_LDO8_CONTROL                     0x407D
 151#define WM831X_LDO8_ON_CONTROL                  0x407E
 152#define WM831X_LDO8_SLEEP_CONTROL               0x407F
 153#define WM831X_LDO9_CONTROL                     0x4080
 154#define WM831X_LDO9_ON_CONTROL                  0x4081
 155#define WM831X_LDO9_SLEEP_CONTROL               0x4082
 156#define WM831X_LDO10_CONTROL                    0x4083
 157#define WM831X_LDO10_ON_CONTROL                 0x4084
 158#define WM831X_LDO10_SLEEP_CONTROL              0x4085
 159#define WM831X_LDO11_ON_CONTROL                 0x4087
 160#define WM831X_LDO11_SLEEP_CONTROL              0x4088
 161#define WM831X_POWER_GOOD_SOURCE_1              0x408E
 162#define WM831X_POWER_GOOD_SOURCE_2              0x408F
 163#define WM831X_CLOCK_CONTROL_1                  0x4090
 164#define WM831X_CLOCK_CONTROL_2                  0x4091
 165#define WM831X_FLL_CONTROL_1                    0x4092
 166#define WM831X_FLL_CONTROL_2                    0x4093
 167#define WM831X_FLL_CONTROL_3                    0x4094
 168#define WM831X_FLL_CONTROL_4                    0x4095
 169#define WM831X_FLL_CONTROL_5                    0x4096
 170#define WM831X_UNIQUE_ID_1                      0x7800
 171#define WM831X_UNIQUE_ID_2                      0x7801
 172#define WM831X_UNIQUE_ID_3                      0x7802
 173#define WM831X_UNIQUE_ID_4                      0x7803
 174#define WM831X_UNIQUE_ID_5                      0x7804
 175#define WM831X_UNIQUE_ID_6                      0x7805
 176#define WM831X_UNIQUE_ID_7                      0x7806
 177#define WM831X_UNIQUE_ID_8                      0x7807
 178#define WM831X_FACTORY_OTP_ID                   0x7808
 179#define WM831X_FACTORY_OTP_1                    0x7809
 180#define WM831X_FACTORY_OTP_2                    0x780A
 181#define WM831X_FACTORY_OTP_3                    0x780B
 182#define WM831X_FACTORY_OTP_4                    0x780C
 183#define WM831X_FACTORY_OTP_5                    0x780D
 184#define WM831X_CUSTOMER_OTP_ID                  0x7810
 185#define WM831X_DC1_OTP_CONTROL                  0x7811
 186#define WM831X_DC2_OTP_CONTROL                  0x7812
 187#define WM831X_DC3_OTP_CONTROL                  0x7813
 188#define WM831X_LDO1_2_OTP_CONTROL               0x7814
 189#define WM831X_LDO3_4_OTP_CONTROL               0x7815
 190#define WM831X_LDO5_6_OTP_CONTROL               0x7816
 191#define WM831X_LDO7_8_OTP_CONTROL               0x7817
 192#define WM831X_LDO9_10_OTP_CONTROL              0x7818
 193#define WM831X_LDO11_EPE_CONTROL                0x7819
 194#define WM831X_GPIO1_OTP_CONTROL                0x781A
 195#define WM831X_GPIO2_OTP_CONTROL                0x781B
 196#define WM831X_GPIO3_OTP_CONTROL                0x781C
 197#define WM831X_GPIO4_OTP_CONTROL                0x781D
 198#define WM831X_GPIO5_OTP_CONTROL                0x781E
 199#define WM831X_GPIO6_OTP_CONTROL                0x781F
 200#define WM831X_DBE_CHECK_DATA                   0x7827
 201
 202/*
 203 * R0 (0x00) - Reset ID
 204 */
 205#define WM831X_CHIP_ID_MASK                     0xFFFF  /* CHIP_ID - [15:0] */
 206#define WM831X_CHIP_ID_SHIFT                         0  /* CHIP_ID - [15:0] */
 207#define WM831X_CHIP_ID_WIDTH                        16  /* CHIP_ID - [15:0] */
 208
 209/*
 210 * R1 (0x01) - Revision
 211 */
 212#define WM831X_PARENT_REV_MASK                  0xFF00  /* PARENT_REV - [15:8] */
 213#define WM831X_PARENT_REV_SHIFT                      8  /* PARENT_REV - [15:8] */
 214#define WM831X_PARENT_REV_WIDTH                      8  /* PARENT_REV - [15:8] */
 215#define WM831X_CHILD_REV_MASK                   0x00FF  /* CHILD_REV - [7:0] */
 216#define WM831X_CHILD_REV_SHIFT                       0  /* CHILD_REV - [7:0] */
 217#define WM831X_CHILD_REV_WIDTH                       8  /* CHILD_REV - [7:0] */
 218
 219/*
 220 * R16384 (0x4000) - Parent ID
 221 */
 222#define WM831X_PARENT_ID_MASK                   0xFFFF  /* PARENT_ID - [15:0] */
 223#define WM831X_PARENT_ID_SHIFT                       0  /* PARENT_ID - [15:0] */
 224#define WM831X_PARENT_ID_WIDTH                      16  /* PARENT_ID - [15:0] */
 225
 226/*
 227 * R16389 (0x4005) - ON Pin Control
 228 */
 229#define WM831X_ON_PIN_SECACT_MASK               0x0300  /* ON_PIN_SECACT - [9:8] */
 230#define WM831X_ON_PIN_SECACT_SHIFT                   8  /* ON_PIN_SECACT - [9:8] */
 231#define WM831X_ON_PIN_SECACT_WIDTH                   2  /* ON_PIN_SECACT - [9:8] */
 232#define WM831X_ON_PIN_PRIMACT_MASK              0x0030  /* ON_PIN_PRIMACT - [5:4] */
 233#define WM831X_ON_PIN_PRIMACT_SHIFT                  4  /* ON_PIN_PRIMACT - [5:4] */
 234#define WM831X_ON_PIN_PRIMACT_WIDTH                  2  /* ON_PIN_PRIMACT - [5:4] */
 235#define WM831X_ON_PIN_STS                       0x0008  /* ON_PIN_STS */
 236#define WM831X_ON_PIN_STS_MASK                  0x0008  /* ON_PIN_STS */
 237#define WM831X_ON_PIN_STS_SHIFT                      3  /* ON_PIN_STS */
 238#define WM831X_ON_PIN_STS_WIDTH                      1  /* ON_PIN_STS */
 239#define WM831X_ON_PIN_TO_MASK                   0x0003  /* ON_PIN_TO - [1:0] */
 240#define WM831X_ON_PIN_TO_SHIFT                       0  /* ON_PIN_TO - [1:0] */
 241#define WM831X_ON_PIN_TO_WIDTH                       2  /* ON_PIN_TO - [1:0] */
 242
 243/*
 244 * R16528 (0x4090) - Clock Control 1
 245 */
 246#define WM831X_CLKOUT_ENA                       0x8000  /* CLKOUT_ENA */
 247#define WM831X_CLKOUT_ENA_MASK                  0x8000  /* CLKOUT_ENA */
 248#define WM831X_CLKOUT_ENA_SHIFT                     15  /* CLKOUT_ENA */
 249#define WM831X_CLKOUT_ENA_WIDTH                      1  /* CLKOUT_ENA */
 250#define WM831X_CLKOUT_OD                        0x2000  /* CLKOUT_OD */
 251#define WM831X_CLKOUT_OD_MASK                   0x2000  /* CLKOUT_OD */
 252#define WM831X_CLKOUT_OD_SHIFT                      13  /* CLKOUT_OD */
 253#define WM831X_CLKOUT_OD_WIDTH                       1  /* CLKOUT_OD */
 254#define WM831X_CLKOUT_SLOT_MASK                 0x0700  /* CLKOUT_SLOT - [10:8] */
 255#define WM831X_CLKOUT_SLOT_SHIFT                     8  /* CLKOUT_SLOT - [10:8] */
 256#define WM831X_CLKOUT_SLOT_WIDTH                     3  /* CLKOUT_SLOT - [10:8] */
 257#define WM831X_CLKOUT_SLPSLOT_MASK              0x0070  /* CLKOUT_SLPSLOT - [6:4] */
 258#define WM831X_CLKOUT_SLPSLOT_SHIFT                  4  /* CLKOUT_SLPSLOT - [6:4] */
 259#define WM831X_CLKOUT_SLPSLOT_WIDTH                  3  /* CLKOUT_SLPSLOT - [6:4] */
 260#define WM831X_CLKOUT_SRC                       0x0001  /* CLKOUT_SRC */
 261#define WM831X_CLKOUT_SRC_MASK                  0x0001  /* CLKOUT_SRC */
 262#define WM831X_CLKOUT_SRC_SHIFT                      0  /* CLKOUT_SRC */
 263#define WM831X_CLKOUT_SRC_WIDTH                      1  /* CLKOUT_SRC */
 264
 265/*
 266 * R16529 (0x4091) - Clock Control 2
 267 */
 268#define WM831X_XTAL_INH                         0x8000  /* XTAL_INH */
 269#define WM831X_XTAL_INH_MASK                    0x8000  /* XTAL_INH */
 270#define WM831X_XTAL_INH_SHIFT                       15  /* XTAL_INH */
 271#define WM831X_XTAL_INH_WIDTH                        1  /* XTAL_INH */
 272#define WM831X_XTAL_ENA                         0x2000  /* XTAL_ENA */
 273#define WM831X_XTAL_ENA_MASK                    0x2000  /* XTAL_ENA */
 274#define WM831X_XTAL_ENA_SHIFT                       13  /* XTAL_ENA */
 275#define WM831X_XTAL_ENA_WIDTH                        1  /* XTAL_ENA */
 276#define WM831X_XTAL_BKUPENA                     0x1000  /* XTAL_BKUPENA */
 277#define WM831X_XTAL_BKUPENA_MASK                0x1000  /* XTAL_BKUPENA */
 278#define WM831X_XTAL_BKUPENA_SHIFT                   12  /* XTAL_BKUPENA */
 279#define WM831X_XTAL_BKUPENA_WIDTH                    1  /* XTAL_BKUPENA */
 280#define WM831X_FLL_AUTO                         0x0080  /* FLL_AUTO */
 281#define WM831X_FLL_AUTO_MASK                    0x0080  /* FLL_AUTO */
 282#define WM831X_FLL_AUTO_SHIFT                        7  /* FLL_AUTO */
 283#define WM831X_FLL_AUTO_WIDTH                        1  /* FLL_AUTO */
 284#define WM831X_FLL_AUTO_FREQ_MASK               0x0007  /* FLL_AUTO_FREQ - [2:0] */
 285#define WM831X_FLL_AUTO_FREQ_SHIFT                   0  /* FLL_AUTO_FREQ - [2:0] */
 286#define WM831X_FLL_AUTO_FREQ_WIDTH                   3  /* FLL_AUTO_FREQ - [2:0] */
 287
 288/*
 289 * R16530 (0x4092) - FLL Control 1
 290 */
 291#define WM831X_FLL_FRAC                         0x0004  /* FLL_FRAC */
 292#define WM831X_FLL_FRAC_MASK                    0x0004  /* FLL_FRAC */
 293#define WM831X_FLL_FRAC_SHIFT                        2  /* FLL_FRAC */
 294#define WM831X_FLL_FRAC_WIDTH                        1  /* FLL_FRAC */
 295#define WM831X_FLL_OSC_ENA                      0x0002  /* FLL_OSC_ENA */
 296#define WM831X_FLL_OSC_ENA_MASK                 0x0002  /* FLL_OSC_ENA */
 297#define WM831X_FLL_OSC_ENA_SHIFT                     1  /* FLL_OSC_ENA */
 298#define WM831X_FLL_OSC_ENA_WIDTH                     1  /* FLL_OSC_ENA */
 299#define WM831X_FLL_ENA                          0x0001  /* FLL_ENA */
 300#define WM831X_FLL_ENA_MASK                     0x0001  /* FLL_ENA */
 301#define WM831X_FLL_ENA_SHIFT                         0  /* FLL_ENA */
 302#define WM831X_FLL_ENA_WIDTH                         1  /* FLL_ENA */
 303
 304/*
 305 * R16531 (0x4093) - FLL Control 2
 306 */
 307#define WM831X_FLL_OUTDIV_MASK                  0x3F00  /* FLL_OUTDIV - [13:8] */
 308#define WM831X_FLL_OUTDIV_SHIFT                      8  /* FLL_OUTDIV - [13:8] */
 309#define WM831X_FLL_OUTDIV_WIDTH                      6  /* FLL_OUTDIV - [13:8] */
 310#define WM831X_FLL_CTRL_RATE_MASK               0x0070  /* FLL_CTRL_RATE - [6:4] */
 311#define WM831X_FLL_CTRL_RATE_SHIFT                   4  /* FLL_CTRL_RATE - [6:4] */
 312#define WM831X_FLL_CTRL_RATE_WIDTH                   3  /* FLL_CTRL_RATE - [6:4] */
 313#define WM831X_FLL_FRATIO_MASK                  0x0007  /* FLL_FRATIO - [2:0] */
 314#define WM831X_FLL_FRATIO_SHIFT                      0  /* FLL_FRATIO - [2:0] */
 315#define WM831X_FLL_FRATIO_WIDTH                      3  /* FLL_FRATIO - [2:0] */
 316
 317/*
 318 * R16532 (0x4094) - FLL Control 3
 319 */
 320#define WM831X_FLL_K_MASK                       0xFFFF  /* FLL_K - [15:0] */
 321#define WM831X_FLL_K_SHIFT                           0  /* FLL_K - [15:0] */
 322#define WM831X_FLL_K_WIDTH                          16  /* FLL_K - [15:0] */
 323
 324/*
 325 * R16533 (0x4095) - FLL Control 4
 326 */
 327#define WM831X_FLL_N_MASK                       0x7FE0  /* FLL_N - [14:5] */
 328#define WM831X_FLL_N_SHIFT                           5  /* FLL_N - [14:5] */
 329#define WM831X_FLL_N_WIDTH                          10  /* FLL_N - [14:5] */
 330#define WM831X_FLL_GAIN_MASK                    0x000F  /* FLL_GAIN - [3:0] */
 331#define WM831X_FLL_GAIN_SHIFT                        0  /* FLL_GAIN - [3:0] */
 332#define WM831X_FLL_GAIN_WIDTH                        4  /* FLL_GAIN - [3:0] */
 333
 334/*
 335 * R16534 (0x4096) - FLL Control 5
 336 */
 337#define WM831X_FLL_CLK_REF_DIV_MASK             0x0018  /* FLL_CLK_REF_DIV - [4:3] */
 338#define WM831X_FLL_CLK_REF_DIV_SHIFT                 3  /* FLL_CLK_REF_DIV - [4:3] */
 339#define WM831X_FLL_CLK_REF_DIV_WIDTH                 2  /* FLL_CLK_REF_DIV - [4:3] */
 340#define WM831X_FLL_CLK_SRC_MASK                 0x0003  /* FLL_CLK_SRC - [1:0] */
 341#define WM831X_FLL_CLK_SRC_SHIFT                     0  /* FLL_CLK_SRC - [1:0] */
 342#define WM831X_FLL_CLK_SRC_WIDTH                     2  /* FLL_CLK_SRC - [1:0] */
 343
 344struct regulator_dev;
 345struct irq_domain;
 346
 347#define WM831X_NUM_IRQ_REGS 5
 348#define WM831X_NUM_GPIO_REGS 16
 349
 350enum wm831x_parent {
 351        WM8310 = 0x8310,
 352        WM8311 = 0x8311,
 353        WM8312 = 0x8312,
 354        WM8320 = 0x8320,
 355        WM8321 = 0x8321,
 356        WM8325 = 0x8325,
 357        WM8326 = 0x8326,
 358};
 359
 360struct wm831x;
 361
 362typedef int (*wm831x_auxadc_read_fn)(struct wm831x *wm831x,
 363                                     enum wm831x_auxadc input);
 364
 365struct wm831x {
 366        struct mutex io_lock;
 367
 368        struct device *dev;
 369
 370        struct regmap *regmap;
 371
 372        struct wm831x_pdata pdata;
 373        enum wm831x_parent type;
 374
 375        int irq;  /* Our chip IRQ */
 376        struct mutex irq_lock;
 377        struct irq_domain *irq_domain;
 378        int irq_masks_cur[WM831X_NUM_IRQ_REGS];   /* Currently active value */
 379        int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */
 380
 381        bool soft_shutdown;
 382
 383        /* Chip revision based flags */
 384        unsigned has_gpio_ena:1;         /* Has GPIO enable bit */
 385        unsigned has_cs_sts:1;           /* Has current sink status bit */
 386        unsigned charger_irq_wake:1;     /* Are charger IRQs a wake source? */
 387
 388        int num_gpio;
 389
 390        /* Used by the interrupt controller code to post writes */
 391        int gpio_update[WM831X_NUM_GPIO_REGS];
 392        bool gpio_level_high[WM831X_NUM_GPIO_REGS];
 393        bool gpio_level_low[WM831X_NUM_GPIO_REGS];
 394
 395        struct mutex auxadc_lock;
 396        struct list_head auxadc_pending;
 397        u16 auxadc_active;
 398        wm831x_auxadc_read_fn auxadc_read;
 399
 400        /* The WM831x has a security key blocking access to certain
 401         * registers.  The mutex is taken by the accessors for locking
 402         * and unlocking the security key, locked is used to fail
 403         * writes if the lock is held.
 404         */
 405        struct mutex key_lock;
 406        unsigned int locked:1;
 407};
 408
 409/* Device I/O API */
 410int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg);
 411int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
 412                 unsigned short val);
 413void wm831x_reg_lock(struct wm831x *wm831x);
 414int wm831x_reg_unlock(struct wm831x *wm831x);
 415int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
 416                    unsigned short mask, unsigned short val);
 417int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
 418                     int count, u16 *buf);
 419
 420int wm831x_device_init(struct wm831x *wm831x, int irq);
 421void wm831x_device_exit(struct wm831x *wm831x);
 422int wm831x_device_suspend(struct wm831x *wm831x);
 423void wm831x_device_shutdown(struct wm831x *wm831x);
 424int wm831x_irq_init(struct wm831x *wm831x, int irq);
 425void wm831x_irq_exit(struct wm831x *wm831x);
 426void wm831x_auxadc_init(struct wm831x *wm831x);
 427
 428static inline int wm831x_irq(struct wm831x *wm831x, int irq)
 429{
 430        return irq_create_mapping(wm831x->irq_domain, irq);
 431}
 432
 433extern struct regmap_config wm831x_regmap_config;
 434
 435extern const struct of_device_id wm831x_of_match[];
 436
 437#endif
 438