diff options
Diffstat (limited to 'include/linux/mfd/wm8994/core.h')
| -rw-r--r-- | include/linux/mfd/wm8994/core.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h new file mode 100644 index 000000000000..b06ff2846748 --- /dev/null +++ b/include/linux/mfd/wm8994/core.h @@ -0,0 +1,54 @@ +/* + * 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 |