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/*
* 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) */
unsigned int data_irq; /** Touch data ready IRQ */
unsigned int pd_irq; /** Touch pendown detect 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 {
/** Used to distinguish multiple WM831x chips */
int wm831x_num;
/** Called before subdevices are set up */
int (*pre_init)(struct wm831x *wm831x);
/** Called after subdevices are set up */
int (*post_init)(struct wm831x *wm831x);
/** Put the /IRQ line into CMOS mode */
bool irq_cmos;
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
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