Initial import

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
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+/*
+ * 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