1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x 4 * 5 * Copyright 2009 Wolfson Microelectronics PLC. 6 * 7 * Author: Mark Brown <[email protected]> 8 */ 9 10 #ifndef __MFD_WM831X_PDATA_H__ 11 #define __MFD_WM831X_PDATA_H__ 12 13 struct wm831x; 14 struct regulator_init_data; 15 16 struct wm831x_backlight_pdata { 17 int isink; /** ISINK to use, 1 or 2 */ 18 int max_uA; /** Maximum current to allow */ 19 }; 20 21 struct wm831x_backup_pdata { 22 int charger_enable; 23 int no_constant_voltage; /** Disable constant voltage charging */ 24 int vlim; /** Voltage limit in millivolts */ 25 int ilim; /** Current limit in microamps */ 26 }; 27 28 struct wm831x_battery_pdata { 29 int enable; /** Enable charging */ 30 int fast_enable; /** Enable fast charging */ 31 int off_mask; /** Mask OFF while charging */ 32 int trickle_ilim; /** Trickle charge current limit, in mA */ 33 int vsel; /** Target voltage, in mV */ 34 int eoc_iterm; /** End of trickle charge current, in mA */ 35 int fast_ilim; /** Fast charge current limit, in mA */ 36 int timeout; /** Charge cycle timeout, in minutes */ 37 }; 38 39 /** 40 * Configuration for the WM831x DC-DC BuckWise convertors. This 41 * should be passed as driver_data in the regulator_init_data. 42 * 43 * Currently all the configuration is for the fast DVS switching 44 * support of the devices. This allows MFPs on the device to be 45 * configured as an input to switch between two output voltages, 46 * allowing voltage transitions without the expense of an access over 47 * I2C or SPI buses. 48 */ 49 struct wm831x_buckv_pdata { 50 int dvs_gpio; /** CPU GPIO to use for DVS switching */ 51 int dvs_control_src; /** Hardware DVS source to use (1 or 2) */ 52 int dvs_init_state; /** DVS state to expect on startup */ 53 int dvs_state_gpio; /** CPU GPIO to use for monitoring status */ 54 }; 55 56 /* Sources for status LED configuration. Values are register values 57 * plus 1 to allow for a zero default for preserve. 58 */ 59 enum wm831x_status_src { 60 WM831X_STATUS_PRESERVE = 0, /* Keep the current hardware setting */ 61 WM831X_STATUS_OTP = 1, 62 WM831X_STATUS_POWER = 2, 63 WM831X_STATUS_CHARGER = 3, 64 WM831X_STATUS_MANUAL = 4, 65 }; 66 67 struct wm831x_status_pdata { 68 enum wm831x_status_src default_src; 69 const char *name; 70 const char *default_trigger; 71 }; 72 73 struct wm831x_touch_pdata { 74 int fivewire; /** 1 for five wire mode, 0 for 4 wire */ 75 int isel; /** Current for pen down (uA) */ 76 int rpu; /** Pen down sensitivity resistor divider */ 77 int pressure; /** Report pressure (boolean) */ 78 unsigned int data_irq; /** Touch data ready IRQ */ 79 int data_irqf; /** IRQ flags for data ready IRQ */ 80 unsigned int pd_irq; /** Touch pendown detect IRQ */ 81 int pd_irqf; /** IRQ flags for pen down IRQ */ 82 }; 83 84 enum wm831x_watchdog_action { 85 WM831X_WDOG_NONE = 0, 86 WM831X_WDOG_INTERRUPT = 1, 87 WM831X_WDOG_RESET = 2, 88 WM831X_WDOG_WAKE = 3, 89 }; 90 91 struct wm831x_watchdog_pdata { 92 enum wm831x_watchdog_action primary, secondary; 93 int update_gpio; 94 unsigned int software:1; 95 }; 96 97 #define WM831X_MAX_STATUS 2 98 #define WM831X_MAX_DCDC 4 99 #define WM831X_MAX_EPE 2 100 #define WM831X_MAX_LDO 11 101 #define WM831X_MAX_ISINK 2 102 103 #define WM831X_GPIO_CONFIGURE 0x10000 104 #define WM831X_GPIO_NUM 16 105 106 struct wm831x_pdata { 107 /** Used to distinguish multiple WM831x chips */ 108 int wm831x_num; 109 110 /** Called before subdevices are set up */ 111 int (*pre_init)(struct wm831x *wm831x); 112 /** Called after subdevices are set up */ 113 int (*post_init)(struct wm831x *wm831x); 114 115 /** Put the /IRQ line into CMOS mode */ 116 bool irq_cmos; 117 118 /** Disable the touchscreen */ 119 bool disable_touch; 120 121 /** The driver should initiate a power off sequence during shutdown */ 122 bool soft_shutdown; 123 124 int irq_base; 125 int gpio_base; 126 int gpio_defaults[WM831X_GPIO_NUM]; 127 struct wm831x_backlight_pdata *backlight; 128 struct wm831x_backup_pdata *backup; 129 struct wm831x_battery_pdata *battery; 130 struct wm831x_touch_pdata *touch; 131 struct wm831x_watchdog_pdata *watchdog; 132 133 /** LED1 = 0 and so on */ 134 struct wm831x_status_pdata *status[WM831X_MAX_STATUS]; 135 /** DCDC1 = 0 and so on */ 136 struct regulator_init_data *dcdc[WM831X_MAX_DCDC]; 137 /** EPE1 = 0 and so on */ 138 struct regulator_init_data *epe[WM831X_MAX_EPE]; 139 /** LDO1 = 0 and so on */ 140 struct regulator_init_data *ldo[WM831X_MAX_LDO]; 141 /** ISINK1 = 0 and so on*/ 142 struct regulator_init_data *isink[WM831X_MAX_ISINK]; 143 }; 144 145 #endif 146