1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/* da9063-irq.c: Interrupts support for Dialog DA9063
*
* Copyright 2012 Dialog Semiconductor Ltd.
* Copyright 2013 Philipp Zabel, Pengutronix
*
* Author: Michal Hajduk <michal.hajduk@diasemi.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.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/interrupt.h>
#include <linux/regmap.h>
#include <linux/mfd/da9063/core.h>
#include <linux/mfd/da9063/pdata.h>
#define DA9063_REG_EVENT_A_OFFSET 0
#define DA9063_REG_EVENT_B_OFFSET 1
#define DA9063_REG_EVENT_C_OFFSET 2
#define DA9063_REG_EVENT_D_OFFSET 3
#define EVENTS_BUF_LEN 4
struct da9063_irq_data {
u16 reg;
u8 mask;
};
static const struct regmap_irq da9063_irqs[] = {
/* DA9063 event A register */
[DA9063_IRQ_ONKEY] = {
.reg_offset = DA9063_REG_EVENT_A_OFFSET,
.mask = DA9063_M_ONKEY,
},
[DA9063_IRQ_ALARM] = {
.reg_offset = DA9063_REG_EVENT_A_OFFSET,
.mask = DA9063_M_ALARM,
},
[DA9063_IRQ_TICK] = {
.reg_offset = DA9063_REG_EVENT_A_OFFSET,
.mask = DA9063_M_TICK,
},
[DA9063_IRQ_ADC_RDY] = {
.reg_offset = DA9063_REG_EVENT_A_OFFSET,
.mask = DA9063_M_ADC_RDY,
},
[DA9063_IRQ_SEQ_RDY] = {
.reg_offset = DA9063_REG_EVENT_A_OFFSET,
.mask = DA9063_M_SEQ_RDY,
},
/* DA9063 event B register */
[DA9063_IRQ_WAKE] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_WAKE,
},
[DA9063_IRQ_TEMP] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_TEMP,
},
[DA9063_IRQ_COMP_1V2] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_COMP_1V2,
},
[DA9063_IRQ_LDO_LIM] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_LDO_LIM,
},
[DA9063_IRQ_REG_UVOV] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_UVOV,
},
[DA9063_IRQ_DVC_RDY] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_DVC_RDY,
},
[DA9063_IRQ_VDD_MON] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_VDD_MON,
},
[DA9063_IRQ_WARN] = {
.reg_offset = DA9063_REG_EVENT_B_OFFSET,
.mask = DA9063_M_VDD_WARN,
},
/* DA9063 event C register */
[DA9063_IRQ_GPI0] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI0,
},
[DA9063_IRQ_GPI1] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI1,
},
[DA9063_IRQ_GPI2] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI2,
},
[DA9063_IRQ_GPI3] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI3,
},
[DA9063_IRQ_GPI4] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI4,
},
[DA9063_IRQ_GPI5] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI5,
},
[DA9063_IRQ_GPI6] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI6,
},
[DA9063_IRQ_GPI7] = {
.reg_offset = DA9063_REG_EVENT_C_OFFSET,
.mask = DA9063_M_GPI7,
},
/* DA9063 event D register */
[DA9063_IRQ_GPI8] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI8,
},
[DA9063_IRQ_GPI9] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI9,
},
[DA9063_IRQ_GPI10] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI10,
},
[DA9063_IRQ_GPI11] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI11,
},
[DA9063_IRQ_GPI12] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI12,
},
[DA9063_IRQ_GPI13] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI13,
},
[DA9063_IRQ_GPI14] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI14,
},
[DA9063_IRQ_GPI15] = {
.reg_offset = DA9063_REG_EVENT_D_OFFSET,
.mask = DA9063_M_GPI15,
},
};
static const struct regmap_irq_chip da9063_irq_chip = {
.name = "da9063-irq",
.irqs = da9063_irqs,
.num_irqs = DA9063_NUM_IRQ,
.num_regs = 4,
.status_base = DA9063_REG_EVENT_A,
.mask_base = DA9063_REG_IRQ_MASK_A,
.ack_base = DA9063_REG_EVENT_A,
.init_ack_masked = true,
};
int da9063_irq_init(struct da9063 *da9063)
{
int ret;
if (!da9063->chip_irq) {
dev_err(da9063->dev, "No IRQ configured\n");
return -EINVAL;
}
ret = regmap_add_irq_chip(da9063->regmap, da9063->chip_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
da9063->irq_base, &da9063_irq_chip,
&da9063->regmap_irq);
if (ret) {
dev_err(da9063->dev, "Failed to reguest IRQ %d: %d\n",
da9063->chip_irq, ret);
return ret;
}
return 0;
}
void da9063_irq_exit(struct da9063 *da9063)
{
regmap_del_irq_chip(da9063->chip_irq, da9063->regmap_irq);
}
|
