2 * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
4 * Copyright 2009 Wolfson Microelectronics PLC.
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
15 #ifndef __MFD_WM8994_CORE_H__
16 #define __MFD_WM8994_CORE_H__
18 #include <linux/interrupt.h>
26 struct regulator_bulk_data;
29 #define WM8994_NUM_GPIO_REGS 11
30 #define WM8994_NUM_LDO_REGS 2
31 #define WM8994_NUM_IRQ_REGS 2
33 #define WM8994_IRQ_TEMP_SHUT 0
34 #define WM8994_IRQ_MIC1_DET 1
35 #define WM8994_IRQ_MIC1_SHRT 2
36 #define WM8994_IRQ_MIC2_DET 3
37 #define WM8994_IRQ_MIC2_SHRT 4
38 #define WM8994_IRQ_FLL1_LOCK 5
39 #define WM8994_IRQ_FLL2_LOCK 6
40 #define WM8994_IRQ_SRC1_LOCK 7
41 #define WM8994_IRQ_SRC2_LOCK 8
42 #define WM8994_IRQ_AIF1DRC1_SIG_DET 9
43 #define WM8994_IRQ_AIF1DRC2_SIG_DET 10
44 #define WM8994_IRQ_AIF2DRC_SIG_DET 11
45 #define WM8994_IRQ_FIFOS_ERR 12
46 #define WM8994_IRQ_WSEQ_DONE 13
47 #define WM8994_IRQ_DCS_DONE 14
48 #define WM8994_IRQ_TEMP_WARN 15
50 /* GPIOs in the chip are numbered from 1-11 */
51 #define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
54 struct mutex irq_lock;
56 enum wm8994_type type;
59 struct regmap *regmap;
65 u16 irq_masks_cur[WM8994_NUM_IRQ_REGS];
66 u16 irq_masks_cache[WM8994_NUM_IRQ_REGS];
68 /* Used over suspend/resume */
70 u16 ldo_regs[WM8994_NUM_LDO_REGS];
71 u16 gpio_regs[WM8994_NUM_GPIO_REGS];
73 struct regulator_dev *dbvdd;
75 struct regulator_bulk_data *supplies;
79 int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
80 int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
82 int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
83 unsigned short mask, unsigned short val);
84 int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
86 int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
87 int count, const u16 *buf);
90 /* Helper to save on boilerplate */
91 static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
92 irq_handler_t handler, const char *name,
95 if (!wm8994->irq_base)
97 return request_threaded_irq(wm8994->irq_base + irq, NULL, handler,
98 IRQF_TRIGGER_RISING, name,
101 static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
103 if (!wm8994->irq_base)
105 free_irq(wm8994->irq_base + irq, data);
108 int wm8994_irq_init(struct wm8994 *wm8994);
109 void wm8994_irq_exit(struct wm8994 *wm8994);