1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * include/linux/mfd/wm8994/core.h -- Core interface for WM8994 |
4 | * |
5 | * Copyright 2009 Wolfson Microelectronics PLC. |
6 | * |
7 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
8 | */ |
9 | |
10 | #ifndef __MFD_WM8994_CORE_H__ |
11 | #define __MFD_WM8994_CORE_H__ |
12 | |
13 | #include <linux/mutex.h> |
14 | #include <linux/interrupt.h> |
15 | #include <linux/regmap.h> |
16 | |
17 | #include <linux/mfd/wm8994/pdata.h> |
18 | |
19 | enum wm8994_type { |
20 | WM8994 = 0, |
21 | WM8958 = 1, |
22 | WM1811 = 2, |
23 | }; |
24 | |
25 | struct regulator_dev; |
26 | struct regulator_bulk_data; |
27 | struct irq_domain; |
28 | |
29 | #define WM8994_NUM_GPIO_REGS 11 |
30 | #define WM8994_NUM_LDO_REGS 2 |
31 | #define WM8994_NUM_IRQ_REGS 2 |
32 | |
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 |
49 | |
50 | /* GPIOs in the chip are numbered from 1-11 */ |
51 | #define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN) |
52 | |
53 | struct wm8994 { |
54 | struct wm8994_pdata pdata; |
55 | |
56 | enum wm8994_type type; |
57 | int revision; |
58 | int cust_id; |
59 | |
60 | struct device *dev; |
61 | struct regmap *regmap; |
62 | |
63 | bool ldo_ena_always_driven; |
64 | |
65 | int gpio_base; |
66 | int irq_base; |
67 | |
68 | int irq; |
69 | struct regmap_irq_chip_data *irq_data; |
70 | struct irq_domain *edge_irq; |
71 | |
72 | /* Used over suspend/resume */ |
73 | bool suspended; |
74 | |
75 | struct regulator_dev *dbvdd; |
76 | int num_supplies; |
77 | struct regulator_bulk_data *supplies; |
78 | }; |
79 | |
80 | /* Device I/O API */ |
81 | |
82 | static inline int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg) |
83 | { |
84 | unsigned int val; |
85 | int ret; |
86 | |
87 | ret = regmap_read(map: wm8994->regmap, reg, val: &val); |
88 | |
89 | if (ret < 0) |
90 | return ret; |
91 | else |
92 | return val; |
93 | } |
94 | |
95 | static inline int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg, |
96 | unsigned short val) |
97 | { |
98 | return regmap_write(map: wm8994->regmap, reg, val); |
99 | } |
100 | |
101 | static inline int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg, |
102 | int count, u16 *buf) |
103 | { |
104 | return regmap_bulk_read(map: wm8994->regmap, reg, val: buf, val_count: count); |
105 | } |
106 | |
107 | static inline int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg, |
108 | int count, const u16 *buf) |
109 | { |
110 | return regmap_raw_write(map: wm8994->regmap, reg, val: buf, val_len: count * sizeof(u16)); |
111 | } |
112 | |
113 | static inline int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg, |
114 | unsigned short mask, unsigned short val) |
115 | { |
116 | return regmap_update_bits(map: wm8994->regmap, reg, mask, val); |
117 | } |
118 | |
119 | /* Helper to save on boilerplate */ |
120 | static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq, |
121 | irq_handler_t handler, const char *name, |
122 | void *data) |
123 | { |
124 | if (!wm8994->irq_data) |
125 | return -EINVAL; |
126 | return request_threaded_irq(irq: regmap_irq_get_virq(data: wm8994->irq_data, irq), |
127 | NULL, thread_fn: handler, IRQF_TRIGGER_RISING, name, |
128 | dev: data); |
129 | } |
130 | static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data) |
131 | { |
132 | if (!wm8994->irq_data) |
133 | return; |
134 | free_irq(regmap_irq_get_virq(data: wm8994->irq_data, irq), data); |
135 | } |
136 | |
137 | int wm8994_irq_init(struct wm8994 *wm8994); |
138 | void wm8994_irq_exit(struct wm8994 *wm8994); |
139 | |
140 | #endif |
141 | |