gpiolib: Make WM831x GPIO count dynamic
[deliverable/linux.git] / include / linux / mfd / wm831x / core.h
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1/*
2 * include/linux/mfd/wm831x/core.h -- Core interface for WM831x
3 *
4 * Copyright 2009 Wolfson Microelectronics PLC.
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
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.
12 *
13 */
14
15#ifndef __MFD_WM831X_CORE_H__
16#define __MFD_WM831X_CORE_H__
17
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18#include <linux/interrupt.h>
19#include <linux/workqueue.h>
20
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21/*
22 * Register values.
23 */
24#define WM831X_RESET_ID 0x00
25#define WM831X_REVISION 0x01
26#define WM831X_PARENT_ID 0x4000
27#define WM831X_SYSVDD_CONTROL 0x4001
28#define WM831X_THERMAL_MONITORING 0x4002
29#define WM831X_POWER_STATE 0x4003
30#define WM831X_WATCHDOG 0x4004
31#define WM831X_ON_PIN_CONTROL 0x4005
32#define WM831X_RESET_CONTROL 0x4006
33#define WM831X_CONTROL_INTERFACE 0x4007
34#define WM831X_SECURITY_KEY 0x4008
35#define WM831X_SOFTWARE_SCRATCH 0x4009
36#define WM831X_OTP_CONTROL 0x400A
37#define WM831X_GPIO_LEVEL 0x400C
38#define WM831X_SYSTEM_STATUS 0x400D
39#define WM831X_ON_SOURCE 0x400E
40#define WM831X_OFF_SOURCE 0x400F
41#define WM831X_SYSTEM_INTERRUPTS 0x4010
42#define WM831X_INTERRUPT_STATUS_1 0x4011
43#define WM831X_INTERRUPT_STATUS_2 0x4012
44#define WM831X_INTERRUPT_STATUS_3 0x4013
45#define WM831X_INTERRUPT_STATUS_4 0x4014
46#define WM831X_INTERRUPT_STATUS_5 0x4015
47#define WM831X_IRQ_CONFIG 0x4017
48#define WM831X_SYSTEM_INTERRUPTS_MASK 0x4018
49#define WM831X_INTERRUPT_STATUS_1_MASK 0x4019
50#define WM831X_INTERRUPT_STATUS_2_MASK 0x401A
51#define WM831X_INTERRUPT_STATUS_3_MASK 0x401B
52#define WM831X_INTERRUPT_STATUS_4_MASK 0x401C
53#define WM831X_INTERRUPT_STATUS_5_MASK 0x401D
54#define WM831X_RTC_WRITE_COUNTER 0x4020
55#define WM831X_RTC_TIME_1 0x4021
56#define WM831X_RTC_TIME_2 0x4022
57#define WM831X_RTC_ALARM_1 0x4023
58#define WM831X_RTC_ALARM_2 0x4024
59#define WM831X_RTC_CONTROL 0x4025
60#define WM831X_RTC_TRIM 0x4026
61#define WM831X_TOUCH_CONTROL_1 0x4028
62#define WM831X_TOUCH_CONTROL_2 0x4029
63#define WM831X_TOUCH_DATA_X 0x402A
64#define WM831X_TOUCH_DATA_Y 0x402B
65#define WM831X_TOUCH_DATA_Z 0x402C
66#define WM831X_AUXADC_DATA 0x402D
67#define WM831X_AUXADC_CONTROL 0x402E
68#define WM831X_AUXADC_SOURCE 0x402F
69#define WM831X_COMPARATOR_CONTROL 0x4030
70#define WM831X_COMPARATOR_1 0x4031
71#define WM831X_COMPARATOR_2 0x4032
72#define WM831X_COMPARATOR_3 0x4033
73#define WM831X_COMPARATOR_4 0x4034
74#define WM831X_GPIO1_CONTROL 0x4038
75#define WM831X_GPIO2_CONTROL 0x4039
76#define WM831X_GPIO3_CONTROL 0x403A
77#define WM831X_GPIO4_CONTROL 0x403B
78#define WM831X_GPIO5_CONTROL 0x403C
79#define WM831X_GPIO6_CONTROL 0x403D
80#define WM831X_GPIO7_CONTROL 0x403E
81#define WM831X_GPIO8_CONTROL 0x403F
82#define WM831X_GPIO9_CONTROL 0x4040
83#define WM831X_GPIO10_CONTROL 0x4041
84#define WM831X_GPIO11_CONTROL 0x4042
85#define WM831X_GPIO12_CONTROL 0x4043
86#define WM831X_GPIO13_CONTROL 0x4044
87#define WM831X_GPIO14_CONTROL 0x4045
88#define WM831X_GPIO15_CONTROL 0x4046
89#define WM831X_GPIO16_CONTROL 0x4047
90#define WM831X_CHARGER_CONTROL_1 0x4048
91#define WM831X_CHARGER_CONTROL_2 0x4049
92#define WM831X_CHARGER_STATUS 0x404A
93#define WM831X_BACKUP_CHARGER_CONTROL 0x404B
94#define WM831X_STATUS_LED_1 0x404C
95#define WM831X_STATUS_LED_2 0x404D
96#define WM831X_CURRENT_SINK_1 0x404E
97#define WM831X_CURRENT_SINK_2 0x404F
98#define WM831X_DCDC_ENABLE 0x4050
99#define WM831X_LDO_ENABLE 0x4051
100#define WM831X_DCDC_STATUS 0x4052
101#define WM831X_LDO_STATUS 0x4053
102#define WM831X_DCDC_UV_STATUS 0x4054
103#define WM831X_LDO_UV_STATUS 0x4055
104#define WM831X_DC1_CONTROL_1 0x4056
105#define WM831X_DC1_CONTROL_2 0x4057
106#define WM831X_DC1_ON_CONFIG 0x4058
107#define WM831X_DC1_SLEEP_CONTROL 0x4059
108#define WM831X_DC1_DVS_CONTROL 0x405A
109#define WM831X_DC2_CONTROL_1 0x405B
110#define WM831X_DC2_CONTROL_2 0x405C
111#define WM831X_DC2_ON_CONFIG 0x405D
112#define WM831X_DC2_SLEEP_CONTROL 0x405E
113#define WM831X_DC2_DVS_CONTROL 0x405F
114#define WM831X_DC3_CONTROL_1 0x4060
115#define WM831X_DC3_CONTROL_2 0x4061
116#define WM831X_DC3_ON_CONFIG 0x4062
117#define WM831X_DC3_SLEEP_CONTROL 0x4063
118#define WM831X_DC4_CONTROL 0x4064
119#define WM831X_DC4_SLEEP_CONTROL 0x4065
120#define WM831X_EPE1_CONTROL 0x4066
121#define WM831X_EPE2_CONTROL 0x4067
122#define WM831X_LDO1_CONTROL 0x4068
123#define WM831X_LDO1_ON_CONTROL 0x4069
124#define WM831X_LDO1_SLEEP_CONTROL 0x406A
125#define WM831X_LDO2_CONTROL 0x406B
126#define WM831X_LDO2_ON_CONTROL 0x406C
127#define WM831X_LDO2_SLEEP_CONTROL 0x406D
128#define WM831X_LDO3_CONTROL 0x406E
129#define WM831X_LDO3_ON_CONTROL 0x406F
130#define WM831X_LDO3_SLEEP_CONTROL 0x4070
131#define WM831X_LDO4_CONTROL 0x4071
132#define WM831X_LDO4_ON_CONTROL 0x4072
133#define WM831X_LDO4_SLEEP_CONTROL 0x4073
134#define WM831X_LDO5_CONTROL 0x4074
135#define WM831X_LDO5_ON_CONTROL 0x4075
136#define WM831X_LDO5_SLEEP_CONTROL 0x4076
137#define WM831X_LDO6_CONTROL 0x4077
138#define WM831X_LDO6_ON_CONTROL 0x4078
139#define WM831X_LDO6_SLEEP_CONTROL 0x4079
140#define WM831X_LDO7_CONTROL 0x407A
141#define WM831X_LDO7_ON_CONTROL 0x407B
142#define WM831X_LDO7_SLEEP_CONTROL 0x407C
143#define WM831X_LDO8_CONTROL 0x407D
144#define WM831X_LDO8_ON_CONTROL 0x407E
145#define WM831X_LDO8_SLEEP_CONTROL 0x407F
146#define WM831X_LDO9_CONTROL 0x4080
147#define WM831X_LDO9_ON_CONTROL 0x4081
148#define WM831X_LDO9_SLEEP_CONTROL 0x4082
149#define WM831X_LDO10_CONTROL 0x4083
150#define WM831X_LDO10_ON_CONTROL 0x4084
151#define WM831X_LDO10_SLEEP_CONTROL 0x4085
152#define WM831X_LDO11_ON_CONTROL 0x4087
153#define WM831X_LDO11_SLEEP_CONTROL 0x4088
154#define WM831X_POWER_GOOD_SOURCE_1 0x408E
155#define WM831X_POWER_GOOD_SOURCE_2 0x408F
156#define WM831X_CLOCK_CONTROL_1 0x4090
157#define WM831X_CLOCK_CONTROL_2 0x4091
158#define WM831X_FLL_CONTROL_1 0x4092
159#define WM831X_FLL_CONTROL_2 0x4093
160#define WM831X_FLL_CONTROL_3 0x4094
161#define WM831X_FLL_CONTROL_4 0x4095
162#define WM831X_FLL_CONTROL_5 0x4096
163#define WM831X_UNIQUE_ID_1 0x7800
164#define WM831X_UNIQUE_ID_2 0x7801
165#define WM831X_UNIQUE_ID_3 0x7802
166#define WM831X_UNIQUE_ID_4 0x7803
167#define WM831X_UNIQUE_ID_5 0x7804
168#define WM831X_UNIQUE_ID_6 0x7805
169#define WM831X_UNIQUE_ID_7 0x7806
170#define WM831X_UNIQUE_ID_8 0x7807
171#define WM831X_FACTORY_OTP_ID 0x7808
172#define WM831X_FACTORY_OTP_1 0x7809
173#define WM831X_FACTORY_OTP_2 0x780A
174#define WM831X_FACTORY_OTP_3 0x780B
175#define WM831X_FACTORY_OTP_4 0x780C
176#define WM831X_FACTORY_OTP_5 0x780D
177#define WM831X_CUSTOMER_OTP_ID 0x7810
178#define WM831X_DC1_OTP_CONTROL 0x7811
179#define WM831X_DC2_OTP_CONTROL 0x7812
180#define WM831X_DC3_OTP_CONTROL 0x7813
181#define WM831X_LDO1_2_OTP_CONTROL 0x7814
182#define WM831X_LDO3_4_OTP_CONTROL 0x7815
183#define WM831X_LDO5_6_OTP_CONTROL 0x7816
184#define WM831X_LDO7_8_OTP_CONTROL 0x7817
185#define WM831X_LDO9_10_OTP_CONTROL 0x7818
186#define WM831X_LDO11_EPE_CONTROL 0x7819
187#define WM831X_GPIO1_OTP_CONTROL 0x781A
188#define WM831X_GPIO2_OTP_CONTROL 0x781B
189#define WM831X_GPIO3_OTP_CONTROL 0x781C
190#define WM831X_GPIO4_OTP_CONTROL 0x781D
191#define WM831X_GPIO5_OTP_CONTROL 0x781E
192#define WM831X_GPIO6_OTP_CONTROL 0x781F
193#define WM831X_DBE_CHECK_DATA 0x7827
194
195/*
196 * R0 (0x00) - Reset ID
197 */
198#define WM831X_CHIP_ID_MASK 0xFFFF /* CHIP_ID - [15:0] */
199#define WM831X_CHIP_ID_SHIFT 0 /* CHIP_ID - [15:0] */
200#define WM831X_CHIP_ID_WIDTH 16 /* CHIP_ID - [15:0] */
201
202/*
203 * R1 (0x01) - Revision
204 */
205#define WM831X_PARENT_REV_MASK 0xFF00 /* PARENT_REV - [15:8] */
206#define WM831X_PARENT_REV_SHIFT 8 /* PARENT_REV - [15:8] */
207#define WM831X_PARENT_REV_WIDTH 8 /* PARENT_REV - [15:8] */
208#define WM831X_CHILD_REV_MASK 0x00FF /* CHILD_REV - [7:0] */
209#define WM831X_CHILD_REV_SHIFT 0 /* CHILD_REV - [7:0] */
210#define WM831X_CHILD_REV_WIDTH 8 /* CHILD_REV - [7:0] */
211
212/*
213 * R16384 (0x4000) - Parent ID
214 */
215#define WM831X_PARENT_ID_MASK 0xFFFF /* PARENT_ID - [15:0] */
216#define WM831X_PARENT_ID_SHIFT 0 /* PARENT_ID - [15:0] */
217#define WM831X_PARENT_ID_WIDTH 16 /* PARENT_ID - [15:0] */
218
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219/*
220 * R16389 (0x4005) - ON Pin Control
221 */
222#define WM831X_ON_PIN_SECACT_MASK 0x0300 /* ON_PIN_SECACT - [9:8] */
223#define WM831X_ON_PIN_SECACT_SHIFT 8 /* ON_PIN_SECACT - [9:8] */
224#define WM831X_ON_PIN_SECACT_WIDTH 2 /* ON_PIN_SECACT - [9:8] */
225#define WM831X_ON_PIN_PRIMACT_MASK 0x0030 /* ON_PIN_PRIMACT - [5:4] */
226#define WM831X_ON_PIN_PRIMACT_SHIFT 4 /* ON_PIN_PRIMACT - [5:4] */
227#define WM831X_ON_PIN_PRIMACT_WIDTH 2 /* ON_PIN_PRIMACT - [5:4] */
228#define WM831X_ON_PIN_STS 0x0008 /* ON_PIN_STS */
229#define WM831X_ON_PIN_STS_MASK 0x0008 /* ON_PIN_STS */
230#define WM831X_ON_PIN_STS_SHIFT 3 /* ON_PIN_STS */
231#define WM831X_ON_PIN_STS_WIDTH 1 /* ON_PIN_STS */
232#define WM831X_ON_PIN_TO_MASK 0x0003 /* ON_PIN_TO - [1:0] */
233#define WM831X_ON_PIN_TO_SHIFT 0 /* ON_PIN_TO - [1:0] */
234#define WM831X_ON_PIN_TO_WIDTH 2 /* ON_PIN_TO - [1:0] */
235
236struct regulator_dev;
237
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238struct wm831x {
239 struct mutex io_lock;
240
241 struct device *dev;
242 int (*read_dev)(struct wm831x *wm831x, unsigned short reg,
243 int bytes, void *dest);
244 int (*write_dev)(struct wm831x *wm831x, unsigned short reg,
245 int bytes, void *src);
246
247 void *control_data;
248
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249 int irq; /* Our chip IRQ */
250 struct mutex irq_lock;
251 struct workqueue_struct *irq_wq;
252 struct work_struct irq_work;
253 unsigned int irq_base;
254 int irq_masks[5];
255
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256 int num_gpio;
257
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258 struct mutex auxadc_lock;
259
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260 /* The WM831x has a security key blocking access to certain
261 * registers. The mutex is taken by the accessors for locking
262 * and unlocking the security key, locked is used to fail
263 * writes if the lock is held.
264 */
265 struct mutex key_lock;
266 unsigned int locked:1;
267};
268
269/* Device I/O API */
270int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg);
271int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
272 unsigned short val);
273void wm831x_reg_lock(struct wm831x *wm831x);
274int wm831x_reg_unlock(struct wm831x *wm831x);
275int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
276 unsigned short mask, unsigned short val);
277int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
278 int count, u16 *buf);
279
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280int wm831x_irq_init(struct wm831x *wm831x, int irq);
281void wm831x_irq_exit(struct wm831x *wm831x);
282
283int __must_check wm831x_request_irq(struct wm831x *wm831x,
284 unsigned int irq, irq_handler_t handler,
285 unsigned long flags, const char *name,
286 void *dev);
287void wm831x_free_irq(struct wm831x *wm831x, unsigned int, void *);
288void wm831x_disable_irq(struct wm831x *wm831x, int irq);
289void wm831x_enable_irq(struct wm831x *wm831x, int irq);
290
d2bedfe7 291#endif
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