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 /** 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 */ 54 struct 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 */ 64 enum 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 72 struct wm831x_status_pdata { 73 enum wm831x_status_src default_src; 74 const char *name; 75 const char *default_trigger; 76 }; 77 78 struct 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 unsigned int data_irq; /** Touch data ready IRQ */ 84 unsigned int pd_irq; /** Touch pendown detect IRQ */ 85 }; 86 87 enum wm831x_watchdog_action { 88 WM831X_WDOG_NONE = 0, 89 WM831X_WDOG_INTERRUPT = 1, 90 WM831X_WDOG_RESET = 2, 91 WM831X_WDOG_WAKE = 3, 92 }; 93 94 struct wm831x_watchdog_pdata { 95 enum wm831x_watchdog_action primary, secondary; 96 int update_gpio; 97 unsigned int software:1; 98 }; 99 100 #define WM831X_MAX_STATUS 2 101 #define WM831X_MAX_DCDC 4 102 #define WM831X_MAX_EPE 2 103 #define WM831X_MAX_LDO 11 104 #define WM831X_MAX_ISINK 2 105 106 struct wm831x_pdata { 107 /** Called before subdevices are set up */ 108 int (*pre_init)(struct wm831x *wm831x); 109 /** Called after subdevices are set up */ 110 int (*post_init)(struct wm831x *wm831x); 111 112 int irq_base; 113 int gpio_base; 114 struct wm831x_backlight_pdata *backlight; 115 struct wm831x_backup_pdata *backup; 116 struct wm831x_battery_pdata *battery; 117 struct wm831x_touch_pdata *touch; 118 struct wm831x_watchdog_pdata *watchdog; 119 120 /** LED1 = 0 and so on */ 121 struct wm831x_status_pdata *status[WM831X_MAX_STATUS]; 122 /** DCDC1 = 0 and so on */ 123 struct regulator_init_data *dcdc[WM831X_MAX_DCDC]; 124 /** EPE1 = 0 and so on */ 125 struct regulator_init_data *epe[WM831X_MAX_EPE]; 126 /** LDO1 = 0 and so on */ 127 struct regulator_init_data *ldo[WM831X_MAX_LDO]; 128 /** ISINK1 = 0 and so on*/ 129 struct regulator_init_data *isink[WM831X_MAX_ISINK]; 130 }; 131 132 #endif 133