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
30struct 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
39struct smsc_gpio;
40struct smsc_keypad;
41
42static 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
50static 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 */
110