55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
|
|
* include/linux/mfd/wm8994/core.h -- Core interface for WM8994
|
|
*
|
|
* 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_WM8994_CORE_H__
|
|
#define __MFD_WM8994_CORE_H__
|
|
|
|
struct regulator_dev;
|
|
struct regulator_bulk_data;
|
|
|
|
#define WM8994_NUM_GPIO_REGS 11
|
|
#define WM8994_NUM_LDO_REGS 2
|
|
|
|
struct wm8994 {
|
|
struct mutex io_lock;
|
|
|
|
struct device *dev;
|
|
int (*read_dev)(struct wm8994 *wm8994, unsigned short reg,
|
|
int bytes, void *dest);
|
|
int (*write_dev)(struct wm8994 *wm8994, unsigned short reg,
|
|
int bytes, void *src);
|
|
|
|
void *control_data;
|
|
|
|
int gpio_base;
|
|
|
|
/* Used over suspend/resume */
|
|
u16 ldo_regs[WM8994_NUM_LDO_REGS];
|
|
u16 gpio_regs[WM8994_NUM_GPIO_REGS];
|
|
|
|
struct regulator_dev *dbvdd;
|
|
struct regulator_bulk_data *supplies;
|
|
};
|
|
|
|
/* Device I/O API */
|
|
int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
|
|
int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
|
|
unsigned short val);
|
|
int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
|
|
unsigned short mask, unsigned short val);
|
|
int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
|
|
int count, u16 *buf);
|
|
|
|
#endif
|