Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / include / linux / mfd / smsc.h
1 /*
2  * SMSC ECE1099
3  *
4  * Copyright 2012 Texas Instruments Inc.
5  *
6  * Author: Sourav Poddar <sourav.poddar@ti.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 __LINUX_MFD_SMSC_H
16 #define __LINUX_MFD_SMSC_H
17
18 #include <linux/regmap.h>
19
20 #define SMSC_ID_ECE1099                 1
21 #define SMSC_NUM_CLIENTS                2
22
23 #define SMSC_BASE_ADDR                  0x38
24 #define OMAP_GPIO_SMSC_IRQ              151
25
26 #define SMSC_MAXGPIO         32
27 #define SMSC_BANK(offs)      ((offs) >> 3)
28 #define SMSC_BIT(offs)       (1u << ((offs) & 0x7))
29
30 struct smsc {
31         struct device *dev;
32         struct i2c_client *i2c_clients[SMSC_NUM_CLIENTS];
33         struct regmap *regmap;
34         int clk;
35         /* Stored chip id */
36         int id;
37 };
38
39 struct smsc_gpio;
40 struct smsc_keypad;
41
42 static inline int smsc_read(struct device *child, unsigned int reg,
43         unsigned int *dest)
44 {
45         struct smsc     *smsc = dev_get_drvdata(child->parent);
46
47         return regmap_read(smsc->regmap, reg, dest);
48 }
49
50 static inline int smsc_write(struct device *child, unsigned int reg,
51         unsigned int value)
52 {
53         struct smsc     *smsc = dev_get_drvdata(child->parent);
54
55         return regmap_write(smsc->regmap, reg, value);
56 }
57
58 /* Registers for SMSC */
59 #define SMSC_RESET                                              0xF5
60 #define SMSC_GRP_INT                                            0xF9
61 #define SMSC_CLK_CTRL                                           0xFA
62 #define SMSC_WKUP_CTRL                                          0xFB
63 #define SMSC_DEV_ID                                             0xFC
64 #define SMSC_DEV_REV                                            0xFD
65 #define SMSC_VEN_ID_L                                           0xFE
66 #define SMSC_VEN_ID_H                                           0xFF
67
68 /* CLK VALUE */
69 #define SMSC_CLK_VALUE                                          0x13
70
71 /* Registers for function GPIO INPUT */
72 #define SMSC_GPIO_DATA_IN_START                                 0x00
73
74 /* Registers for function GPIO OUPUT */
75 #define SMSC_GPIO_DATA_OUT_START                                       0x05
76
77 /* Definitions for SMSC GPIO CONFIGURATION REGISTER*/
78 #define SMSC_GPIO_INPUT_LOW                                     0x01
79 #define SMSC_GPIO_INPUT_RISING                                  0x09
80 #define SMSC_GPIO_INPUT_FALLING                                 0x11
81 #define SMSC_GPIO_INPUT_BOTH_EDGE                               0x19
82 #define SMSC_GPIO_OUTPUT_PP                                     0x21
83 #define SMSC_GPIO_OUTPUT_OP                                     0x31
84
85 #define GRP_INT_STAT                                            0xf9
86 #define SMSC_GPI_INT                                            0x0f
87 #define SMSC_CFG_START                                          0x0A
88
89 /* Registers for SMSC GPIO INTERRUPT STATUS REGISTER*/
90 #define SMSC_GPIO_INT_STAT_START                                  0x32
91
92 /* Registers for SMSC GPIO INTERRUPT MASK REGISTER*/
93 #define SMSC_GPIO_INT_MASK_START                               0x37
94
95 /* Registers for SMSC function KEYPAD*/
96 #define SMSC_KP_OUT                                             0x40
97 #define SMSC_KP_IN                                              0x41
98 #define SMSC_KP_INT_STAT                                        0x42
99 #define SMSC_KP_INT_MASK                                        0x43
100
101 /* Definitions for keypad */
102 #define SMSC_KP_KSO           0x70
103 #define SMSC_KP_KSI           0x51
104 #define SMSC_KSO_ALL_LOW        0x20
105 #define SMSC_KP_SET_LOW_PWR        0x0B
106 #define SMSC_KP_SET_HIGH           0xFF
107 #define SMSC_KSO_EVAL           0x00
108
109 #endif /*  __LINUX_MFD_SMSC_H */