1 /* 2 * include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x 3 * 4 * Copyright 2009 Wolfson Microelectronics PLC. 5 * 6 * Author: Mark Brown <[email protected]> 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 114