include/linux/mfd/wm831x/pdata.h

   1 /*
   2  * include/linux/mfd/wm831x/pdata.h -- Platform data 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_PDATA_H__
  16 #define __MFD_WM831X_PDATA_H__
  17
  18 struct wm831x;
  19 struct regulator_init_data;
  20
  21 struct wm831x_backlight_pdata {
  22         int isink;     /** ISINK to use, 1 or 2 */
  23         int max_uA;    /** Maximum current to allow */
  24 };
  25
  26 struct wm831x_backup_pdata {
  27         int charger_enable;
  28         int no_constant_voltage;  /** Disable constant voltage charging */
  29         int vlim;   /** Voltage limit in milivolts */
  30         int ilim;   /** Current limit in microamps */
  31 };
  32
  33 struct wm831x_battery_pdata {
  34         int enable;         /** Enable charging */
  35         int fast_enable;    /** Enable fast charging */
  36         int off_mask;       /** Mask OFF while charging */
  37         int trickle_ilim;   /** Trickle charge current limit, in mA */
  38         int vsel;           /** Target voltage, in mV */
  39         int eoc_iterm;      /** End of trickle charge current, in mA */
  40         int fast_ilim;      /** Fast charge current limit, in mA */
  41         int timeout;        /** Charge cycle timeout, in minutes */
  42 };
  43
  44 /* Sources for status LED configuration.  Values are register values
  45  * plus 1 to allow for a zero default for preserve.
  46  */
  47 enum wm831x_status_src {
  48         WM831X_STATUS_PRESERVE = 0,  /* Keep the current hardware setting */
  49         WM831X_STATUS_OTP = 1,
  50         WM831X_STATUS_POWER = 2,
  51         WM831X_STATUS_CHARGER = 3,
  52         WM831X_STATUS_MANUAL = 4,
  53 };
  54
  55 struct wm831x_status_pdata {
  56         enum wm831x_status_src default_src;
  57         const char *name;
  58         const char *default_trigger;
  59 };
  60
  61 struct wm831x_touch_pdata {
  62         int fivewire;          /** 1 for five wire mode, 0 for 4 wire */
  63         int isel;              /** Current for pen down (uA) */
  64         int rpu;               /** Pen down sensitivity resistor divider */
  65         int pressure;          /** Report pressure (boolean) */
  66         int data_irq;          /** Touch data ready IRQ */
  67 };
  68
  69 enum wm831x_watchdog_action {
  70         WM831X_WDOG_NONE = 0,
  71         WM831X_WDOG_INTERRUPT = 1,
  72         WM831X_WDOG_RESET = 2,
  73         WM831X_WDOG_WAKE = 3,
  74 };
  75
  76 struct wm831x_watchdog_pdata {
  77         enum wm831x_watchdog_action primary, secondary;
  78         int update_gpio;
  79         unsigned int software:1;
  80 };
  81
  82 #define WM831X_MAX_STATUS 2
  83 #define WM831X_MAX_DCDC   4
  84 #define WM831X_MAX_EPE    2
  85 #define WM831X_MAX_LDO    11
  86 #define WM831X_MAX_ISINK  2
  87
  88 struct wm831x_pdata {
  89         /** Called before subdevices are set up */
  90         int (*pre_init)(struct wm831x *wm831x);
  91         /** Called after subdevices are set up */
  92         int (*post_init)(struct wm831x *wm831x);
  93
  94         int gpio_base;
  95         struct wm831x_backlight_pdata *backlight;
  96         struct wm831x_backup_pdata *backup;
  97         struct wm831x_battery_pdata *battery;
  98         struct wm831x_touch_pdata *touch;
  99         struct wm831x_watchdog_pdata *watchdog;
 100
 101         /** LED1 = 0 and so on */
 102         struct wm831x_status_pdata *status[WM831X_MAX_STATUS];
 103         /** DCDC1 = 0 and so on */
 104         struct regulator_init_data *dcdc[WM831X_MAX_DCDC];
 105         /** EPE1 = 0 and so on */
 106         struct regulator_init_data *epe[WM831X_MAX_EPE];
 107         /** LDO1 = 0 and so on */
 108         struct regulator_init_data *ldo[WM831X_MAX_LDO];
 109         /** ISINK1 = 0 and so on*/
 110         struct regulator_init_data *isink[WM831X_MAX_ISINK];
 111 };
 112
 113 #endif