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mfd: twl6040: Add initial support
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1 /*
2  * MFD driver for twl6040
3  *
4  * Authors:     Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
5  *              Misael Lopez Cruz <misael.lopez@ti.com>
6  *
7  * Copyright:   (C) 2011 Texas Instruments, Inc.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21  * 02110-1301 USA
22  *
23  */
24
25 #ifndef __TWL6040_CODEC_H__
26 #define __TWL6040_CODEC_H__
27
28 #include <linux/interrupt.h>
29 #include <linux/mfd/core.h>
30
31 #define TWL6040_REG_ASICID              0x01
32 #define TWL6040_REG_ASICREV             0x02
33 #define TWL6040_REG_INTID               0x03
34 #define TWL6040_REG_INTMR               0x04
35 #define TWL6040_REG_NCPCTL              0x05
36 #define TWL6040_REG_LDOCTL              0x06
37 #define TWL6040_REG_HPPLLCTL            0x07
38 #define TWL6040_REG_LPPLLCTL            0x08
39 #define TWL6040_REG_LPPLLDIV            0x09
40 #define TWL6040_REG_AMICBCTL            0x0A
41 #define TWL6040_REG_DMICBCTL            0x0B
42 #define TWL6040_REG_MICLCTL             0x0C
43 #define TWL6040_REG_MICRCTL             0x0D
44 #define TWL6040_REG_MICGAIN             0x0E
45 #define TWL6040_REG_LINEGAIN            0x0F
46 #define TWL6040_REG_HSLCTL              0x10
47 #define TWL6040_REG_HSRCTL              0x11
48 #define TWL6040_REG_HSGAIN              0x12
49 #define TWL6040_REG_EARCTL              0x13
50 #define TWL6040_REG_HFLCTL              0x14
51 #define TWL6040_REG_HFLGAIN             0x15
52 #define TWL6040_REG_HFRCTL              0x16
53 #define TWL6040_REG_HFRGAIN             0x17
54 #define TWL6040_REG_VIBCTLL             0x18
55 #define TWL6040_REG_VIBDATL             0x19
56 #define TWL6040_REG_VIBCTLR             0x1A
57 #define TWL6040_REG_VIBDATR             0x1B
58 #define TWL6040_REG_HKCTL1              0x1C
59 #define TWL6040_REG_HKCTL2              0x1D
60 #define TWL6040_REG_GPOCTL              0x1E
61 #define TWL6040_REG_ALB                 0x1F
62 #define TWL6040_REG_DLB                 0x20
63 #define TWL6040_REG_TRIM1               0x28
64 #define TWL6040_REG_TRIM2               0x29
65 #define TWL6040_REG_TRIM3               0x2A
66 #define TWL6040_REG_HSOTRIM             0x2B
67 #define TWL6040_REG_HFOTRIM             0x2C
68 #define TWL6040_REG_ACCCTL              0x2D
69 #define TWL6040_REG_STATUS              0x2E
70
71 #define TWL6040_CACHEREGNUM             (TWL6040_REG_STATUS + 1)
72
73 #define TWL6040_VIOREGNUM               18
74 #define TWL6040_VDDREGNUM               21
75
76 /* INTID (0x03) fields */
77
78 #define TWL6040_THINT                   0x01
79 #define TWL6040_PLUGINT                 0x02
80 #define TWL6040_UNPLUGINT               0x04
81 #define TWL6040_HOOKINT                 0x08
82 #define TWL6040_HFINT                   0x10
83 #define TWL6040_VIBINT                  0x20
84 #define TWL6040_READYINT                0x40
85
86 /* INTMR (0x04) fields */
87
88 #define TWL6040_THMSK                   0x01
89 #define TWL6040_PLUGMSK                 0x02
90 #define TWL6040_HOOKMSK                 0x08
91 #define TWL6040_HFMSK                   0x10
92 #define TWL6040_VIBMSK                  0x20
93 #define TWL6040_READYMSK                0x40
94 #define TWL6040_ALLINT_MSK              0x7B
95
96 /* NCPCTL (0x05) fields */
97
98 #define TWL6040_NCPENA                  0x01
99 #define TWL6040_NCPOPEN                 0x40
100
101 /* LDOCTL (0x06) fields */
102
103 #define TWL6040_LSLDOENA                0x01
104 #define TWL6040_HSLDOENA                0x04
105 #define TWL6040_REFENA                  0x40
106 #define TWL6040_OSCENA                  0x80
107
108 /* HPPLLCTL (0x07) fields */
109
110 #define TWL6040_HPLLENA                 0x01
111 #define TWL6040_HPLLRST                 0x02
112 #define TWL6040_HPLLBP                  0x04
113 #define TWL6040_HPLLSQRENA              0x08
114 #define TWL6040_MCLK_12000KHZ           (0 << 5)
115 #define TWL6040_MCLK_19200KHZ           (1 << 5)
116 #define TWL6040_MCLK_26000KHZ           (2 << 5)
117 #define TWL6040_MCLK_38400KHZ           (3 << 5)
118 #define TWL6040_MCLK_MSK                0x60
119
120 /* LPPLLCTL (0x08) fields */
121
122 #define TWL6040_LPLLENA                 0x01
123 #define TWL6040_LPLLRST                 0x02
124 #define TWL6040_LPLLSEL                 0x04
125 #define TWL6040_LPLLFIN                 0x08
126 #define TWL6040_HPLLSEL                 0x10
127
128 /* HSLCTL (0x10) fields */
129
130 #define TWL6040_HSDACMODEL              0x02
131 #define TWL6040_HSDRVMODEL              0x08
132
133 /* HSRCTL (0x11) fields */
134
135 #define TWL6040_HSDACMODER              0x02
136 #define TWL6040_HSDRVMODER              0x08
137
138 /* VIBCTLL (0x18) fields */
139
140 #define TWL6040_VIBENAL                 0x01
141 #define TWL6040_VIBCTRLL                0x04
142 #define TWL6040_VIBCTRLLP               0x08
143 #define TWL6040_VIBCTRLLN               0x10
144
145 /* VIBDATL (0x19) fields */
146
147 #define TWL6040_VIBDAT_MAX              0x64
148
149 /* VIBCTLR (0x1A) fields */
150
151 #define TWL6040_VIBENAR                 0x01
152 #define TWL6040_VIBCTRLR                0x04
153 #define TWL6040_VIBCTRLRP               0x08
154 #define TWL6040_VIBCTRLRN               0x10
155
156 /* GPOCTL (0x1E) fields */
157
158 #define TWL6040_GPO1                    0x01
159 #define TWL6040_GPO2                    0x02
160 #define TWL6040_GPO3                    0x03
161
162 /* ACCCTL (0x2D) fields */
163
164 #define TWL6040_I2CSEL                  0x01
165 #define TWL6040_RESETSPLIT              0x04
166 #define TWL6040_INTCLRMODE              0x08
167
168 #define TWL6040_SYSCLK_SEL_LPPLL        1
169 #define TWL6040_SYSCLK_SEL_HPPLL        2
170
171 /* STATUS (0x2E) fields */
172
173 #define TWL6040_PLUGCOMP                0x02
174 #define TWL6040_VIBLOCDET               0x10
175 #define TWL6040_VIBROCDET               0x20
176 #define TWL6040_TSHUTDET                0x40
177
178 #define TWL6040_CELLS                   2
179
180 #define TWL6040_REV_ES1_0               0x00
181 #define TWL6040_REV_ES1_1               0x01
182 #define TWL6040_REV_ES1_2               0x02
183
184 #define TWL6040_IRQ_TH                  0
185 #define TWL6040_IRQ_PLUG                1
186 #define TWL6040_IRQ_HOOK                2
187 #define TWL6040_IRQ_HF                  3
188 #define TWL6040_IRQ_VIB                 4
189 #define TWL6040_IRQ_READY               5
190
191 enum twl6040_pll_id {
192         TWL6040_NOPLL_ID,
193         TWL6040_LPPLL_ID,
194         TWL6040_HPPLL_ID,
195 };
196
197 struct twl6040 {
198         struct device *dev;
199         struct mutex mutex;
200         struct mutex io_mutex;
201         struct mutex irq_mutex;
202         struct mfd_cell cells[TWL6040_CELLS];
203         struct completion ready;
204
205         int audpwron;
206         int power_count;
207         int rev;
208
209         enum twl6040_pll_id pll;
210         unsigned int sysclk;
211
212         unsigned int irq;
213         unsigned int irq_base;
214         u8 irq_masks_cur;
215         u8 irq_masks_cache;
216 };
217
218 static inline int twl6040_request_irq(struct twl6040 *twl6040, int irq,
219                                       irq_handler_t handler,
220                                       unsigned long irqflags,
221                                       const char *name,
222                                       void *data)
223 {
224         if (!twl6040->irq_base)
225                 return -EINVAL;
226
227         return request_threaded_irq(twl6040->irq_base + irq, NULL, handler,
228                                     irqflags, name, data);
229 }
230
231 static inline void twl6040_free_irq(struct twl6040 *twl6040, int irq,
232                                     void *data)
233 {
234         if (!twl6040->irq_base)
235                 return;
236
237         free_irq(twl6040->irq_base + irq, data);
238 }
239
240 int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg);
241 int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg,
242                       u8 val);
243 int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg,
244                      u8 mask);
245 int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg,
246                        u8 mask);
247 int twl6040_power(struct twl6040 *twl6040, int on);
248 int twl6040_set_pll(struct twl6040 *twl6040, enum twl6040_pll_id id,
249                     unsigned int freq_in, unsigned int freq_out);
250 enum twl6040_pll_id twl6040_get_pll(struct twl6040 *twl6040);
251 unsigned int twl6040_get_sysclk(struct twl6040 *twl6040);
252 int twl6040_irq_init(struct twl6040 *twl6040);
253 void twl6040_irq_exit(struct twl6040 *twl6040);
254
255 #endif  /* End of __TWL6040_CODEC_H__ */