144 lines
4.3 KiB
C
144 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x
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*
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* Copyright 2009 Wolfson Microelectronics PLC.
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*/
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#ifndef __MFD_WM831X_PDATA_H__
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#define __MFD_WM831X_PDATA_H__
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struct wm831x;
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struct regulator_init_data;
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struct wm831x_backlight_pdata {
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int isink; /** ISINK to use, 1 or 2 */
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int max_uA; /** Maximum current to allow */
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};
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struct wm831x_backup_pdata {
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int charger_enable;
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int no_constant_voltage; /** Disable constant voltage charging */
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int vlim; /** Voltage limit in millivolts */
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int ilim; /** Current limit in microamps */
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};
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struct wm831x_battery_pdata {
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int enable; /** Enable charging */
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int fast_enable; /** Enable fast charging */
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int off_mask; /** Mask OFF while charging */
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int trickle_ilim; /** Trickle charge current limit, in mA */
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int vsel; /** Target voltage, in mV */
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int eoc_iterm; /** End of trickle charge current, in mA */
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int fast_ilim; /** Fast charge current limit, in mA */
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int timeout; /** Charge cycle timeout, in minutes */
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};
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/**
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* Configuration for the WM831x DC-DC BuckWise convertors. This
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* should be passed as driver_data in the regulator_init_data.
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*
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* Currently all the configuration is for the fast DVS switching
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* support of the devices. This allows MFPs on the device to be
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* configured as an input to switch between two output voltages,
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* allowing voltage transitions without the expense of an access over
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* I2C or SPI buses.
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*/
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struct wm831x_buckv_pdata {
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int dvs_control_src; /** Hardware DVS source to use (1 or 2) */
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int dvs_init_state; /** DVS state to expect on startup */
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int dvs_state_gpio; /** CPU GPIO to use for monitoring status */
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};
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/* Sources for status LED configuration. Values are register values
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* plus 1 to allow for a zero default for preserve.
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*/
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enum wm831x_status_src {
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WM831X_STATUS_PRESERVE = 0, /* Keep the current hardware setting */
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WM831X_STATUS_OTP = 1,
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WM831X_STATUS_POWER = 2,
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WM831X_STATUS_CHARGER = 3,
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WM831X_STATUS_MANUAL = 4,
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};
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struct wm831x_status_pdata {
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enum wm831x_status_src default_src;
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const char *name;
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const char *default_trigger;
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};
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struct wm831x_touch_pdata {
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int fivewire; /** 1 for five wire mode, 0 for 4 wire */
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int isel; /** Current for pen down (uA) */
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int rpu; /** Pen down sensitivity resistor divider */
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int pressure; /** Report pressure (boolean) */
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unsigned int data_irq; /** Touch data ready IRQ */
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int data_irqf; /** IRQ flags for data ready IRQ */
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unsigned int pd_irq; /** Touch pendown detect IRQ */
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int pd_irqf; /** IRQ flags for pen down IRQ */
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};
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enum wm831x_watchdog_action {
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WM831X_WDOG_NONE = 0,
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WM831X_WDOG_INTERRUPT = 1,
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WM831X_WDOG_RESET = 2,
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WM831X_WDOG_WAKE = 3,
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};
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struct wm831x_watchdog_pdata {
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enum wm831x_watchdog_action primary, secondary;
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unsigned int software:1;
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};
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#define WM831X_MAX_STATUS 2
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#define WM831X_MAX_DCDC 4
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#define WM831X_MAX_EPE 2
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#define WM831X_MAX_LDO 11
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#define WM831X_MAX_ISINK 2
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#define WM831X_GPIO_CONFIGURE 0x10000
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#define WM831X_GPIO_NUM 16
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struct wm831x_pdata {
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/** Used to distinguish multiple WM831x chips */
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int wm831x_num;
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/** Called before subdevices are set up */
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int (*pre_init)(struct wm831x *wm831x);
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/** Called after subdevices are set up */
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int (*post_init)(struct wm831x *wm831x);
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/** Put the /IRQ line into CMOS mode */
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bool irq_cmos;
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/** Disable the touchscreen */
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bool disable_touch;
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/** The driver should initiate a power off sequence during shutdown */
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bool soft_shutdown;
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int irq_base;
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int gpio_base;
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int gpio_defaults[WM831X_GPIO_NUM];
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struct wm831x_backlight_pdata *backlight;
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struct wm831x_backup_pdata *backup;
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struct wm831x_battery_pdata *battery;
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struct wm831x_touch_pdata *touch;
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struct wm831x_watchdog_pdata *watchdog;
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/** LED1 = 0 and so on */
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struct wm831x_status_pdata *status[WM831X_MAX_STATUS];
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/** DCDC1 = 0 and so on */
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struct regulator_init_data *dcdc[WM831X_MAX_DCDC];
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/** EPE1 = 0 and so on */
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struct regulator_init_data *epe[WM831X_MAX_EPE];
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/** LDO1 = 0 and so on */
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struct regulator_init_data *ldo[WM831X_MAX_LDO];
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/** ISINK1 = 0 and so on*/
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struct regulator_init_data *isink[WM831X_MAX_ISINK];
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};
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#endif
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