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 18struct wm831x; 19struct regulator_init_data; 20 21struct wm831x_backlight_pdata { 22 int isink; /** ISINK to use, 1 or 2 */ 23 int max_uA; /** Maximum current to allow */ 24}; 25 26struct 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 33struct 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/** 45 * Configuration for the WM831x DC-DC BuckWise convertors. This 46 * should be passed as driver_data in the regulator_init_data. 47 * 48 * Currently all the configuration is for the fast DVS switching 49 * support of the devices. This allows MFPs on the device to be 50 * configured as an input to switch between two output voltages, 51 * allowing voltage transitions without the expense of an access over 52 * I2C or SPI buses. 53 */ 54struct wm831x_buckv_pdata { 55 int dvs_gpio; /** CPU GPIO to use for DVS switching */ 56 int dvs_control_src; /** Hardware DVS source to use (1 or 2) */ 57 int dvs_init_state; /** DVS state to expect on startup */ 58 int dvs_state_gpio; /** CPU GPIO to use for monitoring status */ 59}; 60 61/* Sources for status LED configuration. Values are register values 62 * plus 1 to allow for a zero default for preserve. 63 */ 64enum wm831x_status_src { 65 WM831X_STATUS_PRESERVE = 0, /* Keep the current hardware setting */ 66 WM831X_STATUS_OTP = 1, 67 WM831X_STATUS_POWER = 2, 68 WM831X_STATUS_CHARGER = 3, 69 WM831X_STATUS_MANUAL = 4, 70}; 71 72struct wm831x_status_pdata { 73 enum wm831x_status_src default_src; 74 const char *name; 75 const char *default_trigger; 76}; 77 78struct wm831x_touch_pdata { 79 int fivewire; /** 1 for five wire mode, 0 for 4 wire */ 80 int isel; /** Current for pen down (uA) */ 81 int rpu; /** Pen down sensitivity resistor divider */ 82 int pressure; /** Report pressure (boolean) */ 83 int data_irq; /** Touch data ready IRQ */ 84}; 85 86enum wm831x_watchdog_action { 87 WM831X_WDOG_NONE = 0, 88 WM831X_WDOG_INTERRUPT = 1, 89 WM831X_WDOG_RESET = 2, 90 WM831X_WDOG_WAKE = 3, 91}; 92 93struct wm831x_watchdog_pdata { 94 enum wm831x_watchdog_action primary, secondary; 95 int update_gpio; 96 unsigned int software:1; 97}; 98 99#define WM831X_MAX_STATUS 2 100#define WM831X_MAX_DCDC 4 101#define WM831X_MAX_EPE 2 102#define WM831X_MAX_LDO 11 103#define WM831X_MAX_ISINK 2 104 105struct wm831x_pdata { 106 /** Called before subdevices are set up */ 107 int (*pre_init)(struct wm831x *wm831x); 108 /** Called after subdevices are set up */ 109 int (*post_init)(struct wm831x *wm831x); 110 111 int irq_base; 112 int gpio_base; 113 struct wm831x_backlight_pdata *backlight; 114 struct wm831x_backup_pdata *backup; 115 struct wm831x_battery_pdata *battery; 116 struct wm831x_touch_pdata *touch; 117 struct wm831x_watchdog_pdata *watchdog; 118 119 /** LED1 = 0 and so on */ 120 struct wm831x_status_pdata *status[WM831X_MAX_STATUS]; 121 /** DCDC1 = 0 and so on */ 122 struct regulator_init_data *dcdc[WM831X_MAX_DCDC]; 123 /** EPE1 = 0 and so on */ 124 struct regulator_init_data *epe[WM831X_MAX_EPE]; 125 /** LDO1 = 0 and so on */ 126 struct regulator_init_data *ldo[WM831X_MAX_LDO]; 127 /** ISINK1 = 0 and so on*/ 128 struct regulator_init_data *isink[WM831X_MAX_ISINK]; 129}; 130 131#endif 132