/* * include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x * * Copyright 2009 Wolfson Microelectronics PLC. * * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #ifndef __MFD_WM831X_PDATA_H__ #define __MFD_WM831X_PDATA_H__ struct wm831x; struct regulator_init_data; struct wm831x_backlight_pdata { int isink; /** ISINK to use, 1 or 2 */ int max_uA; /** Maximum current to allow */ }; struct wm831x_backup_pdata { int charger_enable; int no_constant_voltage; /** Disable constant voltage charging */ int vlim; /** Voltage limit in milivolts */ int ilim; /** Current limit in microamps */ }; struct wm831x_battery_pdata { int enable; /** Enable charging */ int fast_enable; /** Enable fast charging */ int off_mask; /** Mask OFF while charging */ int trickle_ilim; /** Trickle charge current limit, in mA */ int vsel; /** Target voltage, in mV */ int eoc_iterm; /** End of trickle charge current, in mA */ int fast_ilim; /** Fast charge current limit, in mA */ int timeout; /** Charge cycle timeout, in minutes */ }; /** * Configuration for the WM831x DC-DC BuckWise convertors. This * should be passed as driver_data in the regulator_init_data. * * Currently all the configuration is for the fast DVS switching * support of the devices. This allows MFPs on the device to be * configured as an input to switch between two output voltages, * allowing voltage transitions without the expense of an access over * I2C or SPI buses. */ struct wm831x_buckv_pdata { int dvs_gpio; /** CPU GPIO to use for DVS switching */ int dvs_control_src; /** Hardware DVS source to use (1 or 2) */ int dvs_init_state; /** DVS state to expect on startup */ int dvs_state_gpio; /** CPU GPIO to use for monitoring status */ }; /* Sources for status LED configuration. Values are register values * plus 1 to allow for a zero default for preserve. */ enum wm831x_status_src { WM831X_STATUS_PRESERVE = 0, /* Keep the current hardware setting */ WM831X_STATUS_OTP = 1, WM831X_STATUS_POWER = 2, WM831X_STATUS_CHARGER = 3, WM831X_STATUS_MANUAL = 4, }; struct wm831x_status_pdata { enum wm831x_status_src default_src; const char *name; const char *default_trigger; }; struct wm831x_touch_pdata { int fivewire; /** 1 for five wire mode, 0 for 4 wire */ int isel; /** Current for pen down (uA) */ int rpu; /** Pen down sensitivity resistor divider */ int pressure; /** Report pressure (boolean) */ int data_irq; /** Touch data ready IRQ */ }; enum wm831x_watchdog_action { WM831X_WDOG_NONE = 0, WM831X_WDOG_INTERRUPT = 1, WM831X_WDOG_RESET = 2, WM831X_WDOG_WAKE = 3, }; struct wm831x_watchdog_pdata { enum wm831x_watchdog_action primary, secondary; int update_gpio; unsigned int software:1; }; #define WM831X_MAX_STATUS 2 #define WM831X_MAX_DCDC 4 #define WM831X_MAX_EPE 2 #define WM831X_MAX_LDO 11 #define WM831X_MAX_ISINK 2 struct wm831x_pdata { /** Called before subdevices are set up */ int (*pre_init)(struct wm831x *wm831x); /** Called after subdevices are set up */ int (*post_init)(struct wm831x *wm831x); int irq_base; int gpio_base; struct wm831x_backlight_pdata *backlight; struct wm831x_backup_pdata *backup; struct wm831x_battery_pdata *battery; struct wm831x_touch_pdata *touch; struct wm831x_watchdog_pdata *watchdog; /** LED1 = 0 and so on */ struct wm831x_status_pdata *status[WM831X_MAX_STATUS]; /** DCDC1 = 0 and so on */ struct regulator_init_data *dcdc[WM831X_MAX_DCDC]; /** EPE1 = 0 and so on */ struct regulator_init_data *epe[WM831X_MAX_EPE]; /** LDO1 = 0 and so on */ struct regulator_init_data *ldo[WM831X_MAX_LDO]; /** ISINK1 = 0 and so on*/ struct regulator_init_data *isink[WM831X_MAX_ISINK]; }; #endif