diff options
Diffstat (limited to 'include/linux/mfd/wm831x/pdata.h')
| -rw-r--r-- | include/linux/mfd/wm831x/pdata.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/include/linux/mfd/wm831x/pdata.h b/include/linux/mfd/wm831x/pdata.h new file mode 100644 index 000000000..dcc9631b3 --- /dev/null +++ b/include/linux/mfd/wm831x/pdata.h @@ -0,0 +1,150 @@ +/* + * 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 millivolts */ + 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 */ + int data_irqf; /** IRQ flags for data ready IRQ */ + unsigned int pd_irq; /** Touch pendown detect IRQ */ + int pd_irqf; /** IRQ flags for pen down 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 + +#define WM831X_GPIO_CONFIGURE 0x10000 +#define WM831X_GPIO_NUM 16 + +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; + + /** Disable the touchscreen */ + bool disable_touch; + + /** The driver should initiate a power off sequence during shutdown */ + bool soft_shutdown; + + int irq_base; + int gpio_base; + int gpio_defaults[WM831X_GPIO_NUM]; + 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 |